CN204730917U - Dual flow calibration weighing system - Google Patents
Dual flow calibration weighing system Download PDFInfo
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- CN204730917U CN204730917U CN201520436970.6U CN201520436970U CN204730917U CN 204730917 U CN204730917 U CN 204730917U CN 201520436970 U CN201520436970 U CN 201520436970U CN 204730917 U CN204730917 U CN 204730917U
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Abstract
The utility model discloses and still can carry out the dual flow calibration weighing system of accurate calibration under providing a kind of environment that the variation of extremely low or flow velocity is larger at flow.The utility model comprise be connected by pipeline (1) successively reserve tank (2), proving flowmeter (3), district to be measured (4) and Weighing Area, described Weighing Area comprises the first weighing platform (5) and the second weighing platform (6) that are all connected with described district to be measured (4).Utilize gravimetric method and pairing comparision to measure, there are not cumulative errors in good guarantee, possesses good result simultaneously.The utility model is applicable to electromagnetic flowmeter field.
Description
Technical field
The utility model relates to a kind of flow measurement, especially designs a kind of dual flow calibration weighing system.
Background technology
Electromagnetic flowmeter is measured high, the range ratio advantages of higher of accuracy because it has and is widely used, especially fluctuate in great tap water supply field at flow velocity, how calibrate when flow velocity fluctuation is larger, guarantee the precision of flowmeter become manufacturer must faced by problem.Traditional traffic alignment mode has three kinds, the first: volumetric method-by flowmeter survey aggregate-value and actual aquifer yield volume contrast compare, using the volume of water as standard value, and measured value contrasts, by repeating experiment in different in flow rate situation, thus realize demarcating; The second: Comparison Method-by adopting the proving flowmeter of a high accuracy class, contrast with flowmeter to be measured, treat flow measurement gauge using high-class flowmeter institute's velocity measurement and aggregate-value as one and demarcate; The third: the changing value of gravimetric method-by weight be is scaled the change of aggregate-value, be similar to volumetric method, but ratio of precision volumetric method is higher, more reliably.But above three kinds of methods all cannot be calibrated under the flow velocity of the extremely low and variation of flow again, well can not adapt to the measurement environment in real use procedure.
Utility model content
Technical problem to be solved in the utility model overcomes the deficiencies in the prior art exactly, still can carry out the dual flow calibration weighing system of accurate calibration under providing a kind of environment that the variation of extremely low or flow velocity is larger at flow.
The technical scheme that the utility model adopts is: the utility model comprise be connected by pipeline successively reserve tank, proving flowmeter, district to be measured and Weighing Area, described Weighing Area comprises the first weighing platform and the second weighing platform that are all connected with described district to be measured.
Further, described first weighing platform and described second weighing platform include water pot of weighing, described in weigh bottom water pot and be provided with weight sensor.
Further, the size of water pot of weighing described in described first weighing platform and described second weighing platform is unequal.
Further, be communicated with by T-valve between described first weighing platform, described second weighing platform and described district to be measured.
The beneficial effects of the utility model are: due to the utility model comprise be connected by pipeline successively reserve tank, proving flowmeter, district to be measured and Weighing Area, described Weighing Area comprises the first weighing platform and the second weighing platform that are all connected with described district to be measured.Compared with prior art, the utility model utilizes described proving flowmeter and described Weighing Area, adopt pairing comparision and gravimetric method two kinds of modes to calibrate sensor to be measured simultaneously, namely when tested region flow velocity is extremely low, calibrated by the flow of gravimetric method to low discharge and fluctuation; When tested zone flow is large, utilize pairing comparision to calibrate, then according to weight aggregate-value, contrast table is revised simultaneously, thus effectively guarantee that the calibration reference yardstick when uninterrupted differs is consistent.So, still can carry out accurate calibration under the environment that the utility model is extremely low at flow or flow velocity variation is larger.
Because the size of water pot of weighing described in described first weighing platform and described second weighing platform is unequal.Described first weighing platform utilizing size mutually internally inconsistent and described second weighing platform can be measured the flow under different in flow rate simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprise be connected by pipeline 1 successively reserve tank 2, proving flowmeter 3, district to be measured 4 and Weighing Area, described Weighing Area comprises the first weighing platform 5 and the second weighing platform 6 be all connected with described district 4 to be measured.Described first weighing platform 5 and described second weighing platform 6 include water pot 7 of weighing, described in weigh bottom water pot 7 and be provided with weight sensor 8.In the present embodiment, the size of water pot 7 of weighing described in described first weighing platform 5 and described second weighing platform 6 is unequal, weigh described in two that are varied in size by specification water pot 7, native system can take into account the situation of large discharge and low discharge and fluctuations in discharge.In the present embodiment, be communicated with between described first weighing platform 5, described second weighing platform 6 and described district to be measured 4 by T-valve 9, native system can control the opening and closing situation of described T-valve 9 automatically according to the change conditions of flow.Native system must guarantee the water yield truly measured when measuring through described district 4 to be measured and described proving flowmeter 3, can not test leakage can not survey more, therefore in the present embodiment, the water inlet pipe of described water pot 7 of weighing all adopts the mode be flexible coupling, get along well described first weighing platform 5 and the second weighing platform 6 contacts, and guarantees the accuracy of weight measurement.
The utility model is intended to utilize pairing comparision and gravimetric method to calibrate flow simultaneously, namely by weight and Time Calculation outflow, realize instantaneous value and aggregate-value double contrast, avoid in traditional measurement mode to depend merely on instantaneous value or depend merely on aggregate-value and carry out demarcating and the error that occurs, perfection has adapted to pole low discharge or the larger measurement environment of flow velocity variation.
The utility model is applicable to electromagnetic flowmeter field.
Claims (4)
1. a dual flow calibration weighing system, it is characterized in that: described dual flow calibration weighing system comprise be connected by pipeline (1) successively reserve tank (2), proving flowmeter (3), district to be measured (4) and Weighing Area, described Weighing Area comprises the first weighing platform (5) and the second weighing platform (6) that are all connected with described district to be measured (4).
2. dual flow calibration weighing system according to claim 1, it is characterized in that: described first weighing platform (5) and described second weighing platform (6) include water pot of weighing (7), described in weigh water pot (7) bottom be provided with weight sensor (8).
3. dual flow calibration weighing system according to claim 2, is characterized in that: the size of water pot (7) of weighing described in described first weighing platform (5) and described second weighing platform (6) is unequal.
4. dual flow calibration weighing system according to claim 2, is characterized in that: be communicated with by T-valve (9) between described first weighing platform (5), described second weighing platform (6) and described district to be measured (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436970.6U CN204730917U (en) | 2015-06-24 | 2015-06-24 | Dual flow calibration weighing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520436970.6U CN204730917U (en) | 2015-06-24 | 2015-06-24 | Dual flow calibration weighing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204730917U true CN204730917U (en) | 2015-10-28 |
Family
ID=54389258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520436970.6U Expired - Fee Related CN204730917U (en) | 2015-06-24 | 2015-06-24 | Dual flow calibration weighing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204730917U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020209806A1 (en) * | 2019-04-10 | 2020-10-15 | Pvte Company Limited | Calibration method for liquid flowmeter |
| CN115318193A (en) * | 2022-08-11 | 2022-11-11 | 河南华索科技有限公司 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell and implementation method thereof |
-
2015
- 2015-06-24 CN CN201520436970.6U patent/CN204730917U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020209806A1 (en) * | 2019-04-10 | 2020-10-15 | Pvte Company Limited | Calibration method for liquid flowmeter |
| US11768099B2 (en) | 2019-04-10 | 2023-09-26 | Pvte Company Limited | Calibration method for liquid flowmeter |
| CN115318193A (en) * | 2022-08-11 | 2022-11-11 | 河南华索科技有限公司 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell and implementation method thereof |
| CN115318193B (en) * | 2022-08-11 | 2023-10-27 | 河南华索科技有限公司 | Aluminum fluoride and aluminum oxide mixing device for aluminum electrolysis cell and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 Termination date: 20200624 |