CN101832900A - Gravimetric densimeter of flow liquid in pipelines and liquid density measuring method thereof - Google Patents
Gravimetric densimeter of flow liquid in pipelines and liquid density measuring method thereof Download PDFInfo
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- CN101832900A CN101832900A CN 201010150503 CN201010150503A CN101832900A CN 101832900 A CN101832900 A CN 101832900A CN 201010150503 CN201010150503 CN 201010150503 CN 201010150503 A CN201010150503 A CN 201010150503A CN 101832900 A CN101832900 A CN 101832900A
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Abstract
The invention relates to a gravimetric densimeter of flow liquid in pipelines and a liquid density measuring method thereof. The densimeter comprises a main pipeline, a connecting pipeline and a measuring pipeline, wherein the measuring pipeline which comprises a rotating connector, a gravimetric pipeline and a gravimetric sensor is connected beside the main pipeline by the connecting pipeline; or the measuring pipeline is a part of the main pipeline; and the gravimetric sensor is installed on the lower or upper part of the gravimetric pipeline. The liquid density measuring method comprises the steps of: (A) reading the output value ml of the gravimetric sensor when the measuring pipeline is empty; (B) introducing clean water into the measuring pipeline; and meanwhile, reading the output value m3 of the gravimetric sensor on line to obtain the density of the flow liquid in the pipelines. The densimeter has the advantages of stable performance, high measuring precision and convenient installation, and can be used for quickly measuring the density of the flow liquid in the pipelines on line. The liquid density measuring method has the advantages of simplicity, practicality and convenient operation.
Description
Technical field
The present invention relates to a kind of liquidensitometer and liquid density measurement method thereof, working fluid densitometer and liquid density measurement method thereof in particularly a kind of Weighing type pipeline.
Background technology
Density is one of important physical character of liquid.The Density Detection of the measuring density of the mass metrology of petroleum products, the cutting fluid in the electromechanical industries, lubricated wet goods and the beverage in the food industry, milk, plant wet goods all needs density of liquid is measured.At present, the densitometer on the market is based on differential, and kind is single, and measuring speed is slow, and precision is lower.And the measuring method more complicated of working fluid density in the known measuring channel also is not easy to operation, and when measuring channel contained the density of particle mixing material, pipeline also stopped up easily, measuring sensor is worn easily.
Summary of the invention
The objective of the invention is: working fluid densitometer and liquid density measurement method thereof in a kind of Weighing type pipeline are provided, this densitometer stable performance, precision height, easy for installation, can the fast on-line measurement pipeline in the density of working fluid; This liquid density measurement method is simple, practical, be convenient to operation, in order to overcome the deficiencies in the prior art.
Purpose of the present invention can realize by following technical proposals:
Working fluid densitometer in a kind of Weighing type pipeline, form by main line, connecting line and measurement pipeline, it is characterized in that: described main line is made of a trunk line, between the upstream of trunk line and downstream a three-way connection is installed respectively, between two three-way connections flow control valve is installed; Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection between two flow control valves; Two swivel adapter heads of measuring tube route, weigh pipeline and LOAD CELLS formation, two swivel adapter heads are connected respectively to the two ends of the pipeline of weighing, and LOAD CELLS is installed in the bottom or the top of the pipeline of weighing; Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of two three-way connections in the connecting line by the swivel adapter head of its two-port, and connecting line is connected respectively to the 3rd port of two three-way connections of main line by two flow control valves of two linking arm one ends.
The pipeline of weighing of the present invention be shaped as " U " shape or waveform or multiple shapes such as snakelike or spirality.
LOAD CELLS of the present invention is pressure transducer or pulling force sensor.
Swivel adapter head of the present invention is straight-through swivel adapter head or crooked swivel adapter head.
Working fluid densitometer in a kind of Weighing type pipeline is made up of main line, connecting line and measurement pipeline, and it is characterized in that: described main line is made of two trunk lines, and an end of two trunk lines is connected with an end of an elbow respectively; Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection between two flow control valves; Two swivel adapter heads of measuring tube route, weigh pipeline and LOAD CELLS formation, two swivel adapter heads are connected respectively to the two ends of the pipeline of weighing, and LOAD CELLS is installed in the bottom or the top of the pipeline of weighing; Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of two three-way connections in the connecting line by the swivel adapter head of its two-port, and connecting line is connected respectively to the other end of two elbows of main line by two flow control valves of two linking arm one ends.
The densitometric liquid density measurement method of working fluid in the described Weighing type pipeline of a kind of application is characterized in that comprising following measuring process:
(A) at first, regulate the height of back up pad by twisting height adjusting knob, make the pipeline of weighing become horizontality, open the flow control valve on the main line fully, and with fluid to be measured by main line, close two flow control valves of connecting line and main line link earlier, open two flow control valves of connecting line free end then, with the liquid emptying in the pipeline of weighing, the output valve m1 of LOAD CELLS when reading the pipeline of weighing for sky;
(B) then, two flow control valves by the connecting line free end feed water purification in the pipeline of weighing, and read the output valve m2 of LOAD CELLS this moment;
(C) last, close two flow control valves of connecting line free end earlier, open two flow control valves of connecting line and main line link again, then adjust the aperture of the flow control valve on the main line, make the testing liquid pipeline of weighing of flowing through, the online output valve m3 that reads LOAD CELLS of while, then the density of working fluid is in the pipeline
When the fluid density of flowing through in the pipeline changed, m3 also can change accordingly, and then online the obtaining of the density of fluid to be measured measured.
Advantage of the present invention is: when having overcome traditional gradiomanometer measuring channel and containing particle mixing material density, problems such as pipeline easily stops up, measuring sensor is easy to wear, and stable performance, measuring accuracy height, easy for installation, easy to use, can the fast on-line measurement pipeline in the density of working fluid; Its liquid density measurement method is simple, practical, be convenient to operation, is working fluid densitometer and liquid density measurement method thereof in a kind of desirable Weighing type pipeline.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of first kind of embodiment of the present invention;
Fig. 2 is the plan structure synoptic diagram of first kind of embodiment of the present invention;
Fig. 3 is the left TV structure synoptic diagram of first kind of embodiment of the present invention;
Fig. 4 is the plan structure synoptic diagram of second kind of embodiment of the present invention.
Among the figure: 4, joint flange.
Embodiment
As Fig. 1---shown in 3, working fluid densitometer in a kind of Weighing type pipeline, form by main line, connecting line and measurement pipeline, it is characterized in that: described main line is made of a trunk line 3, between the upstream of trunk line 3 and downstream, respectively install flow control valve 1 is installed between 2, two three-way connections 2 of a three-way connection; Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection 6 between two flow control valves 5; Two swivel adapter heads 7 of measuring tube route, weigh pipeline 8 and LOAD CELLS 9 formations, two swivel adapter heads 7 are connected respectively to the two ends of the pipeline 8 of weighing, and LOAD CELLS 9 is installed in the bottom or the top of the pipeline 8 of weighing; The pipeline 8 of weighing can rotate freely around the B-B axle by the swivel adapter head 7 at its two ends; Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of two three-way connections 6 in the connecting line by the swivel adapter head 7 of its two-port, and connecting line is connected respectively to the 3rd port of two three-way connections 2 of main line by two flow control valves 5 of two linking arm one ends.The described pipeline 8 of weighing be shaped as " U " shape or waveform or multiple shapes such as snakelike or spirality.Described LOAD CELLS 9 is pressure transducer or pulling force sensor.Described swivel adapter head 7 is straight-through swivel adapter head or crooked swivel adapter head.The LOAD CELLS 9 that is installed in pipeline 8 bottoms of weighing is positioned on the sensor base 13, and sensor base 13 is installed on the back up pad 12 on the bracing frame 11, and the column of support frame as described above 11 both sides is provided with height adjusting knob 10.
As shown in Figure 4, working fluid densitometer in a kind of Weighing type pipeline, be made up of main line, connecting line and measurement pipeline, it is characterized in that: described main line is made of two trunk lines 3, and an end of two trunk lines 3 is connected with an end of an elbow 14 respectively; Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection 6 between two flow control valves 5; Two swivel adapter heads 7 of measuring tube route, weigh pipeline 8 and LOAD CELLS 9 formations, two swivel adapter heads 7 are connected respectively to the two ends of the pipeline 8 of weighing, and LOAD CELLS 9 is installed in the bottom or the top of the pipeline 8 of weighing; The pipeline 8 of weighing can rotate freely around the C-C axle by the swivel adapter head 7 at its two ends; Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of two three-way connections 6 in the connecting line by the swivel adapter head 7 of its two-port, and connecting line is connected respectively to the other end of two elbows 14 of main line by two flow control valves 5 of two linking arm one ends.
Working fluid densitometer in this Weighing type pipeline, when LOAD CELLS 9 was installed in the bottom of the pipeline 8 of weighing, used LOAD CELLS 9 was a pressure transducer; When LOAD CELLS 9 was installed in the top of the pipeline 8 of weighing, used LOAD CELLS 9 was a pulling force sensor.
As shown in Figure 2, the densitometric liquid density measurement method of working fluid in the described Weighing type pipeline of a kind of application is characterized in that comprising following measuring process:
(A) at first, regulate the height of back up pad 12 by twisting height adjusting knob 10, make the 8 one-tenth horizontalitys of pipeline of weighing, open the flow control valve 1 on the main line fully, and with fluid to be measured by main line, close two flow control valves 5 of connecting line and main line link earlier, open two flow control valves 5 of connecting line free end then, with the liquid emptying in the pipeline 8 of weighing, the output valve m1 of LOAD CELLS 9 when reading the pipeline 8 of weighing for sky;
(B) then, two flow control valves 5 by the connecting line free end feed water purification in the pipeline 8 of weighing, and read the output valve m2 of LOAD CELLS 9 this moment;
(C) last, close two flow control valves 5 of connecting line free end earlier, open two flow control valves 5 of connecting line and main line link again, then adjust the aperture of the flow control valve 1 on the main line, testing liquid is flowed through weigh pipeline 8, the online output valve m3 that reads LOAD CELLS 9 of while, then the density of working fluid is in the pipeline
When the fluid density of flowing through in the pipeline changed, m3 also can change accordingly, and then online the obtaining of the density of fluid to be measured measured.
Use the densitometer of second kind of embodiment, as shown in Figure 4, its measuring method is: at first fluid to be measured is passed through main line, close two flow control valves 5 of connecting line and main line link earlier, open two flow control valves 5 of connecting line free end then, with the liquid emptying in the pipeline 8 of weighing, the output valve m1 of LOAD CELLS 9 when reading the pipeline 8 of weighing for sky; Then, two flow control valves 5 by the connecting line free end feed water purification in the pipeline 8 of weighing, and read the output valve m2 of LOAD CELLS 9 this moment; At last, close two flow control valves 5 of connecting line free end earlier, open two flow control valves 5 of connecting line and main line link again, testing liquid is flowed through weigh pipeline 8, the online output valve m3 that reads LOAD CELLS 9 of while, then the density of working fluid is in the pipeline
When the fluid density of flowing through in the pipeline changed, m3 also can change accordingly, and then online the obtaining of the density of fluid to be measured measured.
Working fluid densitometer in this Weighing type pipeline, the working fluid principle of density is in the measuring channel: other and connect a measuring channel (measuring channel also can be the part of trunk line) at trunk line, this measuring channel part of weighing need bend to definite shape and can rotate freely around B-B axle or C-C axle by the swivel adapter head by its two ends, below measuring channel is weighed part or above a LOAD CELLS is installed.During measurement, the output valve m1 of LOAD CELLS when at first reading measuring channel for sky, in measuring channel, feed water purification then, and read this moment LOAD CELLS output valve m2, at last measuring channel is inserted trunk line, make the testing liquid measuring channel of flowing through, the online output valve m3 that reads LOAD CELLS simultaneously, then the density of working fluid is in the pipeline
When the fluid density of flowing through in the pipeline changed, m3 also can change accordingly, and then online the obtaining of the density of fluid to be measured measured.
Claims (6)
1. working fluid densitometer in the Weighing type pipeline, form by main line, connecting line and measurement pipeline, it is characterized in that: described main line is made of a trunk line (3), between the upstream of trunk line (3) and downstream, a three-way connection (2) is installed respectively, flow control valve (1) is installed between two three-way connections (2); Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection (6) between two flow control valves (5); Two swivel adapter heads of measuring tube route (7), the pipeline of weighing (8) and LOAD CELLS (9) constitute, and two swivel adapter heads (7) are connected respectively to the two ends of the pipeline of weighing (8), and LOAD CELLS (9) is installed in the bottom or the top of the pipeline of weighing (8); Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of interior two three-way connections (6) of connecting line by the swivel adapter head (7) of its two-port, and connecting line is connected respectively to the 3rd port of two three-way connections (2) of main line by two flow control valves (5) of two linking arm one ends.
2. working fluid densitometer in the Weighing type pipeline according to claim 1 is characterized in that: the described pipeline of weighing (8) be shaped as " U " shape or waveform or multiple shapes such as snakelike or spirality.
3. working fluid densitometer in the Weighing type pipeline according to claim 1 is characterized in that: described LOAD CELLS (9) is pressure transducer or pulling force sensor.
4. working fluid densitometer in the Weighing type pipeline according to claim 1 is characterized in that: described swivel adapter head (7) is straight-through swivel adapter head or crooked swivel adapter head.
5. working fluid densitometer in the Weighing type pipeline, form by main line, connecting line and measurement pipeline, it is characterized in that: described main line is made of two trunk lines (3), and an end of two trunk lines (3) is connected with an end of an elbow (14) respectively; Connecting line is made of two linking arms, and each linking arm constitutes by connecting a three-way connection (6) between two flow control valves (5); Two swivel adapter heads of measuring tube route (7), the pipeline of weighing (8) and LOAD CELLS (9) constitute, and two swivel adapter heads (7) are connected respectively to the two ends of the pipeline of weighing (8), and LOAD CELLS (9) is installed in the bottom or the top of the pipeline of weighing (8); Annexation between each pipeline is: the two ends of measuring pipeline are connected respectively to the 3rd port of interior two three-way connections (6) of connecting line by the swivel adapter head (7) of its two-port, and connecting line is connected respectively to the other end of two elbows (14) of main line by two flow control valves (5) of two linking arm one ends.
6. the densitometric liquid density measurement method of working fluid in the Weighing type pipeline as claimed in claim 1 is characterized in that comprising following measuring process:
(A) at first, regulate the height of back up pad (12) by twisting height adjusting knob (10), make the pipeline of weighing (8) become horizontality, open the flow control valve (1) on the main line fully, and fluid to be measured passed through main line, close two flow control valves (5) of connecting line and main line link earlier, open two flow control valves (5) of connecting line free end then, the output valve m1 of the pipeline of weighing (8) LOAD CELLS (9) when empty is read in will weigh liquid emptying in the pipeline (8);
(B) then,, in the pipeline of weighing (8), feed water purification, and read the output valve m2 of LOAD CELLS this moment (9) by two flow control valves (5) of connecting line free end;
(C) last, close two flow control valves (5) of connecting line free end earlier, open two flow control valves (5) of connecting line and main line link again, then adjust the aperture of the flow control valve (1) on the main line, testing liquid is flowed through weigh pipeline (8), the online output valve m3 that reads LOAD CELLS (9) of while, then the density of working fluid is in the pipeline
When the fluid density of flowing through in the pipeline changed, m3 also can change accordingly, and then online the obtaining of the density of fluid to be measured measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101505039A CN101832900B (en) | 2010-04-16 | 2010-04-16 | Gravimetric densimeter of flow liquid in pipelines and liquid density measuring method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101505039A CN101832900B (en) | 2010-04-16 | 2010-04-16 | Gravimetric densimeter of flow liquid in pipelines and liquid density measuring method thereof |
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| CN101832900A true CN101832900A (en) | 2010-09-15 |
| CN101832900B CN101832900B (en) | 2011-09-07 |
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| CN2010101505039A Expired - Fee Related CN101832900B (en) | 2010-04-16 | 2010-04-16 | Gravimetric densimeter of flow liquid in pipelines and liquid density measuring method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442216A (en) * | 2016-08-30 | 2017-02-22 | 浙江天蓝环保技术股份有限公司 | Online tubular density measurement device and liquid density measurement method |
| CN106970003A (en) * | 2017-05-08 | 2017-07-21 | 山东阳光众泰机械工程有限公司 | On-line checking proportion weighing device |
| CN111044407A (en) * | 2020-01-17 | 2020-04-21 | 中铁工程装备集团有限公司 | Non-contact passive pipeline medium density measurement method |
| CN111238996A (en) * | 2020-03-04 | 2020-06-05 | 西京学院 | Multiphase fluid density measurement system and measurement method |
| CN113155233A (en) * | 2021-04-20 | 2021-07-23 | 青岛沃克机械制造有限公司 | Weighing type water level control device |
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| JPH09101251A (en) * | 1995-10-04 | 1997-04-15 | Makoto Tada | Method and apparatus for measuring specific gravity of urine |
| US20030051547A1 (en) * | 2001-09-14 | 2003-03-20 | Brian Ence | Device for measuring density of material flowing in a conveying duct |
| CN201107251Y (en) * | 2007-11-15 | 2008-08-27 | 山西兰花科技创业股份有限公司 | Novel density on-line monitoring device |
| CN101592580A (en) * | 2008-05-30 | 2009-12-02 | 孙和生 | Liquid density continuous automatic detection device |
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2010
- 2010-04-16 CN CN2010101505039A patent/CN101832900B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09101251A (en) * | 1995-10-04 | 1997-04-15 | Makoto Tada | Method and apparatus for measuring specific gravity of urine |
| US20030051547A1 (en) * | 2001-09-14 | 2003-03-20 | Brian Ence | Device for measuring density of material flowing in a conveying duct |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442216A (en) * | 2016-08-30 | 2017-02-22 | 浙江天蓝环保技术股份有限公司 | Online tubular density measurement device and liquid density measurement method |
| CN106970003A (en) * | 2017-05-08 | 2017-07-21 | 山东阳光众泰机械工程有限公司 | On-line checking proportion weighing device |
| CN111044407A (en) * | 2020-01-17 | 2020-04-21 | 中铁工程装备集团有限公司 | Non-contact passive pipeline medium density measurement method |
| CN111238996A (en) * | 2020-03-04 | 2020-06-05 | 西京学院 | Multiphase fluid density measurement system and measurement method |
| CN113155233A (en) * | 2021-04-20 | 2021-07-23 | 青岛沃克机械制造有限公司 | Weighing type water level control device |
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| CN101832900B (en) | 2011-09-07 |
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