CN105067074B - Tower liquid-level detecting method and device under fractionating column - Google Patents
Tower liquid-level detecting method and device under fractionating column Download PDFInfo
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- CN105067074B CN105067074B CN201510549254.3A CN201510549254A CN105067074B CN 105067074 B CN105067074 B CN 105067074B CN 201510549254 A CN201510549254 A CN 201510549254A CN 105067074 B CN105067074 B CN 105067074B
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- fractionating column
- level detection
- pipe fitting
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- 239000007788 liquid Substances 0.000 title claims abstract description 112
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 70
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention discloses tower liquid-level detecting methods under fractionating column, comprising the following steps: S1, the bottom and middle and lower part of tower are respectively connected to the positive pressure pipe fitting of the liquidometer and the negative pressure pipe fitting of the liquidometer under fractionating column；Tower tower body accesses liquid level detection pipe under S2, the fractionating column between positive pressure pipe fitting and negative pressure pipe fitting, and valve is arranged；S3, after liquidometer failure, open valve, when the discharge of liquid level detection pipe is gas, gas-liquid mixture, continuous liquid, judge that the liquid level of tower under fractionating column does not reach access end position, the access end position in the liquid level detection pipe and the access end position higher than the liquid level detection pipe of the liquid level detection pipe respectively.The invention also discloses use under above-mentioned fractionating column tower liquid level detection device under the fractionating column of tower liquid-level detecting method.The present invention live can judge on the spot the liquid level of tower under fractionating column.
Description
Technical field
The present invention relates to tower liquid-level detecting method and devices under the detection technique of fractionating column more particularly to fractionating column.
Background technique
Currently, be all remotely to show about tower level gauging under fractionating column, not on the spot to the high level detecting apparatus of liquid level,
Such as display instrument failure, it cannot judge lower tower liquid level situation, bring difficulty to operation, influence production and adjust.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide tower level sensing sides under fractionating column
Method live can judge on the spot the liquid level of tower under fractionating column.
The second object of the present invention is under the fractionating column using tower liquid-level detecting method under above-mentioned fractionating column that tower liquid level is examined
Survey device.
An object of the present invention is implemented with the following technical solutions:
Tower liquid-level detecting method under fractionating column, comprising the following steps:
S1, configuration liquidometer, under fractionating column the bottom and middle part of tower be respectively connected to the liquidometer positive pressure pipe fitting and
The negative pressure pipe fitting of the liquidometer；
Tower tower body accesses liquid level detection pipe under S2, the fractionating column between positive pressure pipe fitting and negative pressure pipe fitting, and
Valve is set in the liquid level detection pipe；
S3, after liquidometer failure, open valve, pass through the detection judgement point of the discharge medium state of liquid level detection pipe
Evaporate the liquid level of tower under tower:
(a) when the discharge of liquid level detection pipe is gas, judge that the liquid level of tower under fractionating column does not reach the liquid level
The access end position of detection pipe；
(b) when the discharge of liquid level detection pipe is gas-liquid mixture, judge that the liquid level of tower under fractionating column is in the liquid level
The access end position of height detection pipe；
(c) when the discharge of liquid level detection pipe is continuous liquid, it is high to judge that the liquid level of tower under fractionating column is higher than the liquid level
Spend the access end position of detection pipe.
Preferably, positive pressure pipe fitting is located at below negative pressure pipe fitting, while the position of liquid level detection pipe is arranged, and makes this
The access end position of liquid level detection pipe and the spacing of positive pressure pipe fitting be the liquid level detection pipe access end position with
1.5 times of the spacing of negative pressure pipe fitting.
Preferably, the position of liquid level detection pipe is set, is lower than the access end position of the liquid level detection pipe and divides
Evaporate the feeding inlet of tower under tower.
The second object of the present invention is implemented with the following technical solutions:
Use tower liquid level detection device under the fractionating column of tower liquid-level detecting method under above-mentioned fractionating column, including liquidometer, liquid
Face height detection pipe and valve, liquidometer have positive pressure pipe fitting and negative pressure pipe fitting, and positive pressure pipe fitting is set to tower under fractionating column
Bottom, negative pressure pipe fitting are set to the middle and lower part fractionating column Xia Ta, and liquid level detection pipe is connected to positive pressure pipe fitting and negative tube connects
Tower tower body under fractionating column between head, valve are arranged in liquid level detection pipe.
Compared with prior art, the beneficial effects of the present invention are:
The present invention is by the judgement to liquid level detection pipe discharge medium state, to obtain the height of tower liquid level under fractionating column
Degree, and then the detection that scene obtains liquid level on the spot is realized, reference value is provided conducive to for operation, is adjusted for subsequent production
Convenience is provided, the problem of efficiently solving in liquidometer instrument fault, cannot judge liquid level.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fractionating column liquid level detection device of the present invention.
In figure: 1, tower under fractionating column；2, positive pressure pipe fitting；3, negative pressure pipe fitting；4, liquid level detection pipe；5, valve；
6, feeding inlet.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention:
Tower liquid-level detecting method under fractionating column, as shown in Figure 1, comprising the following steps:
S1, configuration liquidometer, the bottom and middle and lower part of tower 1 are respectively connected to the positive pressure pipe fitting of the liquidometer under fractionating column
2 and the liquidometer negative pressure pipe fitting 3；
1 tower body of tower accesses liquid level detection pipe under S2, the fractionating column between positive pressure pipe fitting 2 and negative pressure pipe fitting 3
4, and valve 5 is set in the liquid level detection pipe 4；
S3, after liquidometer failure, open valve 5, judgement detected by the discharge medium state of liquid level detection pipe 4
The liquid level of tower 1 under fractionating column:
(a) when the discharge of liquid level detection pipe 4 is gas, judge that the liquid level of tower 1 under fractionating column does not reach liquid level height
Spend the access end position of detection pipe 4；
(b) when the discharge of liquid level detection pipe 4 is gas-liquid mixture, judge that the liquid level of tower 1 under fractionating column is in the liquid
The access end position of face height detection pipe 4；
(c) when the discharge of liquid level detection pipe 4 is continuous liquid, judge that the liquid level of tower 1 under fractionating column is higher than the liquid level
The access end position of height detection pipe 4.
By the judgement of 4 effluent of liquid level detection pipe, to obtain the height of 1 liquid level of tower under fractionating column, and then realize
Scene obtains the detection of liquid level on the spot, is conducive to provide convenience for subsequent production adjusting, effective solution for operation reference value
The problem of having determined in liquidometer instrument fault, cannot having judged liquid level.
As a preferred embodiment, positive pressure pipe fitting 2 is located at 3 lower section of negative pressure pipe fitting, while liquid level height is arranged
The spacing of the position of degree detection pipe 4, the access end position for making the liquid level detection pipe 4 and positive pressure pipe fitting 2 is liquid level height
1.5 times for spending the access end position of detection pipe 4 and the spacing of negative pressure pipe fitting 3.
To prevent feed inlet from generating interference to liquid level detection pipe 4, the position of liquid level detection pipe 4 is set, this is made
The access end position of liquid level detection pipe 4 is lower than the feeding inlet 6 of tower 1 under fractionating column, this fractionating column liquid-level detecting method can make
Liquid level is unlikely to exceed the feeding inlet 6.
As shown in Figure 1, using tower liquid level detection device under the fractionating column of tower liquid-level detecting method under above-mentioned fractionating column, including
Liquidometer, liquid level detection pipe 4 and valve 5, liquidometer have positive pressure pipe fitting 2 and negative pressure pipe fitting 3, positive pressure pipe fitting 2
1 bottom of tower under fractionating column, negative pressure pipe fitting 3 are set to 1 middle and lower part of tower under fractionating column, and liquid level detection pipe 4 is connected to just
1 tower body of tower under fractionating column between pressure pipe joint 2 and negative pressure pipe fitting 3, valve 5 are arranged in liquid level detection pipe 4.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (2)
1. tower liquid-level detecting method under fractionating column, which comprises the following steps:
S1, configuration liquidometer, the bottom and middle and lower part of tower are respectively connected to the positive pressure pipe fitting of the liquidometer and are somebody's turn to do under fractionating column
The negative pressure pipe fitting of liquidometer；
Tower tower body accesses liquid level detection pipe under S2, the fractionating column between positive pressure pipe fitting and negative pressure pipe fitting, makes the liquid
The access end position of face height detection pipe is lower than the feeding inlet of tower under fractionating column, and positive pressure pipe fitting is located at below negative pressure pipe fitting,
The position of liquid level detection pipe is set simultaneously, makes the spacing of the access end position and positive pressure pipe fitting of the liquid level detection pipe
It is 1.5 times of the spacing for accessing end position and negative pressure pipe fitting of the liquid level detection pipe, and in the liquid level detection pipe
Upper setting valve, and the liquid level detection pipe is horizontally disposed；
S3, after liquidometer failure, open valve, fractionating column judged by the detection of the discharge medium state of liquid level detection pipe
The liquid level of lower tower:
(a) when the discharge of liquid level detection pipe is gas, judge that the liquid level of tower under fractionating column does not reach liquid level detection
The access end position of pipe；
(b) when the discharge of liquid level detection pipe is gas-liquid mixture, judge that the liquid level of tower under fractionating column is in the liquid level
The access end position of detection pipe；
(c) when the discharge of liquid level detection pipe is continuous liquid, judge that the liquid level of tower under fractionating column is examined higher than the liquid level
The access end position of test tube.
2. using tower liquid level detection device under the fractionating column of tower liquid-level detecting method under claim 1 fractionating column, which is characterized in that
Including liquidometer, liquid level detection pipe and valve, liquidometer has positive pressure pipe fitting and negative pressure pipe fitting, and positive pressure pipe fitting is set
The tower bottom under fractionating column, negative pressure pipe fitting are set to the middle and lower part fractionating column Xia Ta, and liquid level detection pipe is connected to forward voltage diode and connects
Tower tower body under fractionating column between head and negative pressure pipe fitting, valve is arranged in liquid level detection pipe, and the liquid level
Detection pipe is horizontally disposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549254.3A CN105067074B (en) | 2015-08-31 | 2015-08-31 | Tower liquid-level detecting method and device under fractionating column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510549254.3A CN105067074B (en) | 2015-08-31 | 2015-08-31 | Tower liquid-level detecting method and device under fractionating column |
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| Publication Number | Publication Date |
|---|---|
| CN105067074A CN105067074A (en) | 2015-11-18 |
| CN105067074B true CN105067074B (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510549254.3A Active CN105067074B (en) | 2015-08-31 | 2015-08-31 | Tower liquid-level detecting method and device under fractionating column |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109239514B (en) * | 2018-08-03 | 2021-02-09 | 重庆川仪自动化股份有限公司 | Short circuit and open circuit detection circuit of liquid level meter sensor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2345112A1 (en) * | 1973-09-06 | 1975-03-20 | Linde Ag | Liquefied gas tank level indicator - operates by condensation caused by liquid in external thin-walled flask |
| CN202724731U (en) * | 2012-06-13 | 2013-02-13 | 中国石油天然气股份有限公司 | Self-heating and self-circulation tracing-heat device for liquid level meter of fractionation tower |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9534945B2 (en) * | 2012-09-21 | 2017-01-03 | John Vander Horst | Rotary valve multi-tank indirect liquid level measurement system and method for wastewater tanks in a recreational vehicle |
| CN203392227U (en) * | 2013-07-10 | 2014-01-15 | 佛山德众药业有限公司 | Buffer tank for rectifying and separating medical alcohol |
| CN204128627U (en) * | 2014-10-22 | 2015-01-28 | 贵州开磷（集团）有限责任公司 | A kind of closed container slurry level measurement mechanism |
-
2015
- 2015-08-31 CN CN201510549254.3A patent/CN105067074B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2345112A1 (en) * | 1973-09-06 | 1975-03-20 | Linde Ag | Liquefied gas tank level indicator - operates by condensation caused by liquid in external thin-walled flask |
| CN202724731U (en) * | 2012-06-13 | 2013-02-13 | 中国石油天然气股份有限公司 | Self-heating and self-circulation tracing-heat device for liquid level meter of fractionation tower |
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| CN105067074A (en) | 2015-11-18 |
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Address after: 518000 Shenzhen center business building, Futian central street, Futian, Shenzhen, Guangdong 2114-2115, China, Futian District Applicant after: SHENZHEN THRESHOLD INDUSTRIAL TECHNOLOGY CO.,LTD. Address before: 518000 Guangdong city of Shenzhen province Futian District Tairan Industrial Zone Tairan cedar building B, 12B industry Applicant before: SHENZHEN HAIGE JINGU CHEMICAL TECHNOLOGY CO.,LTD. |
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Address after: No. 27-28, 7th floor, building 12, Shenzhen Bay science and technology ecological park, No. 18, South Keji Road, high tech community, Yuehai street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Haige Jingu Industrial Technology Co.,Ltd. Address before: 518000 Guangdong Shenzhen, Shenzhen Futian District Futian Street Central Business Center building 2114-2115 Patentee before: SHENZHEN THRESHOLD INDUSTRIAL TECHNOLOGY CO.,LTD. |