CN204854878U - Wide -range fluid reservoir liquid level measurement device - Google Patents
Wide -range fluid reservoir liquid level measurement device Download PDFInfo
- Publication number
- CN204854878U CN204854878U CN201520537993.6U CN201520537993U CN204854878U CN 204854878 U CN204854878 U CN 204854878U CN 201520537993 U CN201520537993 U CN 201520537993U CN 204854878 U CN204854878 U CN 204854878U
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- China
- Prior art keywords
- liquid level
- differential pressure
- fluid reservoir
- pipeline
- pressure transmitter
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Abstract
The utility model discloses a wide -range fluid reservoir liquid level measurement device, including fluid reservoir, differential pressure transmitter and level gauge, even there are static pressure pipeline and total head pipeline on the fluid reservoir, the static pressure pipeline sets up at the top of fluid reservoir, still includes 4-20mA standard current signal comparator, the total head pipeline is by from fluid reservoir bottom many ram -air pipe groups one -tenth to equipartition the fluid reservoir top, differential pressure transmitter comprises a plurality of differential pressure transmitter that the range ability is the same, every differential pressure transmitter's input respectively with static pressure pipeline and corresponding total head pipeline are linked together, and its signal output part passes through respectively the comparator with the signal input part of level gauge links to each other, the comparator carries out the comparison and will give by the biggest I value electric current signal transfer between 4-20mA electric current I value I1, I2, I3, I4, the I5 that a plurality of differential pressure transmitter conveyed respectively the level gauge. The utility model discloses the liquid level measurement of liquid in the fluid reservoir is particularly suitable for when the high fluctuation of liquid level is great in the higher and fluid reservoir of fluid reservoir height.
Description
Technical field
The utility model relates to a kind of measurement mechanism measuring liquid level of tank height, specifically relates to a kind of wide-range liquid level of tank measurement mechanism.
Background technology
The measurement mechanism of liquid level of tank height is measured in prior art, primarily of flow container in structure, differential pressure transmitter and liquid level gauge composition, the top of described flow container is connected with static pressure pipeline, total head pipeline is connected with bottom it, the input end of described differential pressure transmitter is connected with total head pipeline with described static pressure pipeline respectively, the signal output part of differential pressure transmitter is connected with the signal input part of described liquid level gauge, because liquid tank level pressure is directly proportional to the height of tank level to the pressure reduction between flow container base pressure, therefore the differential pressure current signal transmitted according to differential pressure transmitter in liquid level gauge can calculate the height of liquid level in flow container.Differential pressure transmitter has fixing range, generally to select the differential pressure transmitter of corresponding range according to flow container height when measuring liquid level in flow container, if the range of differential pressure transmitter is excessive, level gauging resultant error can be caused large, measurement result is inaccurate, if instead range is too small may exceed measurement range ability, the height of liquid level in flow container cannot be measured.The liquid level that above-mentioned liquid level of tank measurement mechanism of the prior art is applicable to measuring flow container height when not being very high in tank, if the height of flow container is very high and pot liquid level fluctuation is larger time utilize above-mentioned liquid level of tank measurement mechanism of the prior art, the exact height of liquid level in tank cannot be accurately measured.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of wide-range liquid level of tank measurement mechanism, the utility model can accurately measure flow container height higher and in flow container, liquid level fluctuation is larger time liquid pot liquid liquid level.
For solving the problems of the technologies described above, wide-range liquid level of tank measurement mechanism of the present utility model, comprise flow container, differential pressure transmitter and liquid level gauge, described flow container is connected with static pressure pipeline and total head pipeline, described static pressure pipeline is arranged on the top of flow container, the input end of described differential pressure transmitter is connected with total head pipeline with described static pressure pipeline respectively, and the signal output part of differential pressure transmitter is connected with the signal input part of described liquid level gauge, also comprises 4 ~ 20mA standard current signal comparer; Described total head pipeline forms to many uniform total head pipelines flow container top by from bottom flow container, described differential pressure transmitter is made up of multiple differential pressure transmitters that range ability is identical, the input end of each differential pressure transmitter is connected with corresponding total head pipeline to described static pressure pipeline respectively, its signal output part is connected respectively by the signal input part of described comparer with described liquid level gauge, the electric current I value I that described comparer transmits respectively to multiple differential pressure transmitter
1, I
2, I
3, I
4, I
5compare and send I value current signal maximum between 4 ~ 20mA to described liquid level gauge.
Adopt the wide-range liquid level of tank measurement mechanism of said structure, the identical differential pressure transmitter of each range ability can be converted to the standard current signal between 4 ~ 20mA by corresponding for the differential pressure signal of the total head received and static pressure and send described 4 ~ 20mA standard current signal comparer to respectively, can I value current signal maximum between 4 ~ 20mA be sent to described liquid level gauge after this comparer compares the electric current I value that each differential pressure transmitter received sends, to be directly proportional the liquid level that can calculate between corresponding total head pipeline to liquid tank level according to the height of liquid level and differential pressure value, the height of adding bottom corresponding total head pipeline to flow container can obtain the accurate liquid level of liquid pot liquid.The utility model be particularly suitable for flow container height higher and in flow container, liquid level fluctuation is larger time liquid pot liquid level gauging.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the main TV structure schematic diagram of the utility model wide-range liquid level of tank measurement mechanism.
Fig. 2 is the plan structure schematic diagram of the utility model wide-range liquid level of tank measurement mechanism.
Embodiment
Wide-range liquid level of tank measurement mechanism of the present utility model, comprise flow container 1, differential pressure transmitter 2 and liquid level gauge 3, described flow container 1 is connected with static pressure pipeline 4 and total head pipeline 5, described static pressure pipeline 4 is arranged on the top of flow container 1, the input end of described differential pressure transmitter 2 is connected with total head pipeline 5 with described static pressure pipeline 4 respectively, the signal output part of differential pressure transmitter 2 is connected with the signal input part of described liquid level gauge 3, also comprises 4 ~ 20mA standard current signal comparer 6, described total head pipeline 5 by from bottom flow container to many total head pipelines 51 uniform flow container top, 52, 53, 54, 55 compositions, described differential pressure transmitter 2 is by the identical multiple differential pressure transmitters 21 of range ability, 22, 23, 24, 25 compositions, each differential pressure transmitter 21, 22, 23, 24, the input end of 25 respectively to described static pressure pipeline 4 and corresponding total head pipeline 51, 52, 53, 54, 55 are connected, its signal output part is connected respectively by the signal input part of described comparer 6 with described liquid level gauge 3, described comparer 6 is to multiple differential pressure transmitter 21, 22, 23, 24, the 25 electric current I value I transmitted respectively
1, I
2, I
3, I
4, I
5compare and send I value current signal maximum between 4 ~ 20mA to described liquid level gauge 3.
Claims (1)
1. a wide-range liquid level of tank measurement mechanism, comprise flow container (1), differential pressure transmitter (2) and liquid level gauge (3), described flow container (1) is connected with static pressure pipeline (4) and total head pipeline (5), described static pressure pipeline (4) is arranged on the top of flow container (1), the input end of described differential pressure transmitter (2) is connected with total head pipeline (5) with described static pressure pipeline (4) respectively, the signal output part of differential pressure transmitter (2) is connected with the signal input part of described liquid level gauge (3), it is characterized in that: also comprise 4 ~ 20mA standard current signal comparer (6), described total head pipeline (5) by from bottom flow container to many total head pipelines (51 uniform flow container top, 52, 53, 54, 55) form, described differential pressure transmitter (2) is by the identical multiple differential pressure transmitters (21 of range ability, 22, 23, 24, 25) form, each differential pressure transmitter (21, 22, 23, 24, 25) input end respectively with described static pressure pipeline (4) and corresponding total head pipeline (51, 52, 53, 54, 55) be connected, its signal output part is connected respectively by the signal input part of described comparer (6) with described liquid level gauge (3), described comparer (6) is to multiple differential pressure transmitter (21, 22, 23, 24, 25) the electric current I value (I transmitted respectively
1, I
2, I
3, I
4, I
5) compare and send I value current signal maximum between 4 ~ 20mA to described liquid level gauge (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537993.6U CN204854878U (en) | 2015-07-23 | 2015-07-23 | Wide -range fluid reservoir liquid level measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520537993.6U CN204854878U (en) | 2015-07-23 | 2015-07-23 | Wide -range fluid reservoir liquid level measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204854878U true CN204854878U (en) | 2015-12-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520537993.6U Active CN204854878U (en) | 2015-07-23 | 2015-07-23 | Wide -range fluid reservoir liquid level measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204854878U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111955A (en) * | 2021-12-09 | 2022-03-01 | 辽宁毕托巴科技股份有限公司 | Metering device for volume and mass of oil in transportation oil tank |
-
2015
- 2015-07-23 CN CN201520537993.6U patent/CN204854878U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111955A (en) * | 2021-12-09 | 2022-03-01 | 辽宁毕托巴科技股份有限公司 | Metering device for volume and mass of oil in transportation oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180202 Address after: Jinshan District Fengjing town Shanghai city 201500 Ring East Road 65 Lane 13, room 3356 Patentee after: Right: Shanghai environmental protection science and technology limited company Address before: 200030 Shanghai city Xuhui District North Caoxi Road No. 88 sheng'ai building room 2709 Patentee before: Pitotbar (Shanghai) Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210107 Address after: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Patentee after: Liaoning pitotbar Polytron Technologies Inc. Address before: 201500 room 3356, 65 lane, 65 Ring Road, Fengjing town, Jinshan District, Shanghai. Patentee before: SHANGHAI QUANYOU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |