CN110686743A - Double-path hot water metering method and device - Google Patents
Double-path hot water metering method and device Download PDFInfo
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- CN110686743A CN110686743A CN201911101030.0A CN201911101030A CN110686743A CN 110686743 A CN110686743 A CN 110686743A CN 201911101030 A CN201911101030 A CN 201911101030A CN 110686743 A CN110686743 A CN 110686743A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 166
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000004891 communication Methods 0.000 claims abstract description 27
- 238000013480 data collection Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F7/00—Volume-flow measuring devices with two or more measuring ranges; Compound meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Abstract
The invention discloses two double-path hot water metering methods and devices, wherein one scheme comprises a flow meter I and a flow meter II, the flow meter I is provided with a data acquisition unit I, a data operation unit I and a wireless communication module I, the signal end of the data acquisition unit I is connected with the signal end of the data operation unit I, the wireless communication module I is connected with the signal end of the data operation unit I, the flow meter II is provided with a data acquisition unit II and a wireless communication module II, and the signal end of the data acquisition unit II is connected with the wireless communication module II. The other scheme adopts a secondary instrument, and the secondary instrument contains a data acquisition unit I, a data acquisition unit II and a data operation unit. Through the comparison to the poor flow of delivery pipe and return pipe, avoided water gauge itself to have the error or when two water gauge data are the negative value, the unable problem of measurement of bringing.
Description
Technical Field
The invention belongs to the field of heat supply flow measurement, and particularly relates to a double-path hot water measurement method and device.
Background
With the improvement of living standards of people, a centralized heat supply hot water system is widely used for residential buildings, a full circulation system and a half circulation system are commonly adopted in the centralized living hot water system, if the living hot water quantity of different users of the whole building is to be measured, double-meter measurement is generally adopted, namely water meters are respectively arranged on a water supply pipe and a water return pipe, the water consumption is obtained through the difference of the readings of the water meters of the water supply pipe and the water return pipe, theoretically, the method is very reasonable, but in the actual use process, the double-meter measurement is inaccurate due to the error of the water meters, and even a negative value occurs when the difference of the readings of the double water meters is calculated.
Taking a rotary wing or helical wing water meter as an example, the error analysis of the water meter is as follows: when the flow of the pipe network is between the minimum flow and the boundary flow of the water meter, the metering error of the water meter is +/-5%, and when the flow of the pipe network is between the boundary flow and the overload flow, the metering error of the water meter is +/-2%, wherein the errors are reasonable errors within the national regulation permission range. For an all-weather domestic hot water supply system, high daily water consumption Qd, pipe network circulating water quantity Qx, hourly water quantity Qh and hourly heat consumption are Qh, the hourly heat consumption Qh is designed according to national regulations, and the pipe network circulating water quantity and the hourly water quantity are designed according to high daily water consumption. However, in actual use, for example, during daytime of working day, the number of people using water is small, the daily water consumption is usually much smaller than the designed water consumption, the circulating water amount of the pipe network is fixed, when the error of the water meter on the hot water supply pipe is-2%, and the error of the water meter on the return pipe is + 2%, the total error of the water meters on the water supply pipe and the water return pipe is 4% of the total daily circulating water amount, and the value may be larger than the actual daily water consumption, so that the reading of the water meter on the water supply pipe is smaller than that of the water meter on the return pipe, that is, the daily water consumption is a negative value.
Disclosure of Invention
The invention aims to solve the technical problem of providing two double-path hot water metering methods and devices aiming at the defects of the prior art.
The technical scheme of the invention is as follows:
the utility model provides a double-circuit hot water metering device, includes flow table I, flow table II, and I has data acquisition unit I, data arithmetic unit I, wireless communication module I its characterized in that flow table, and I signal terminal in data acquisition unit links to each other with I signal terminal in data arithmetic unit, and wireless communication module I links to each other with I signal terminal in data arithmetic unit, and II have data acquisition unit II in the flow table, wireless communication module II, and II signal terminals in data acquisition unit link to each other with wireless communication module II.
The flow meter I is installed on the water supply pipe, and the flow meter II is installed on the water return pipe, or the flow meter I is installed on the water return pipe, and the flow meter II is installed on the water supply pipe.
A double-path hot water metering method adopts the double-path hot water metering device and comprises the following steps:
s1, collecting data of the flow meter I by a data collection unit I of the flow meter I, and sending the data to a data operation unit I;
s2, the data acquisition unit II of the flow meter II acquires data of the flow meter II and sends the data to the wireless communication module I through the wireless communication module II;
s3, the wireless communication module I receives the data of the flow meter II and then sends the data to the data operation unit I;
and S4, the data operation unit I compares the data of the flow meter I and the flow meter II, when the actual data errors of the two flow meters are within the error range preset by the data operation unit I, the default water consumption of a user is zero, and when the actual data errors exceed the error range preset by the data operation unit I, the difference between the water supply pipe and the water return pipe is used as the water consumption.
The invention has the beneficial effects that:
the data acquisition unit, the data operation unit and the wireless communication module are arranged on the flow meters of the water supply pipe and the water return pipe, data of the flow meters of the water supply pipe and the water return pipe are compared in real time, when actual data errors of the two flow meters are within a preset error range, the water consumption of a default user is zero, and when the actual data errors exceed the preset error range, the water consumption is calculated. The problem that the water meter cannot be metered due to the fact that errors exist in the water meter or the data difference of the double water meters is a negative value is solved.
The second technical scheme of the invention is as follows:
a double-path hot water metering device comprises a secondary instrument, wherein the secondary instrument is internally provided with a data acquisition unit I, a data acquisition unit II and a data operation unit.
The secondary instrument is connected with a water supply pipe and a water return pipe.
A double-path hot water metering method adopts the double-path hot water metering device and comprises the following steps:
s1, the data acquisition unit I and the data acquisition unit II of the secondary instrument simultaneously acquire flow data of a water supply pipe and a water return pipe;
and S2, comparing the flow data of the water supply pipe and the water return pipe by the data operation unit of the secondary instrument, defaulting the water consumption of a user to be zero when the actual data error of the water supply pipe and the water return pipe is within the preset error range of the data operation unit, and taking the difference between the water supply pipe and the water return pipe as the water consumption when the actual data error exceeds the preset error range of the data operation unit.
The invention has the beneficial effects that:
the water supply pipe and the water return pipe are provided with the flow meters, so that the measurement of the data errors of the two flow meters on the water consumption is avoided. When the actual data error of the flow of delivery pipe and wet return when presetting the error range, acquiescence user water consumption is zero, when the actual data error surpassed preset error range, then calculates user's water consumption, has avoided water gauge itself to have the error or when two water gauge data difference are the negative value, the unable problem of measuring of bringing.
Drawings
FIG. 1 is a schematic view of an apparatus for measuring with two flow meters according to the present invention.
FIG. 2 is a schematic view of the apparatus for metering with a secondary meter according to the present invention.
Detailed Description
The invention is described below with reference to the accompanying drawings, which are given by way of example only for the purpose of illustrating the invention and are not intended to limit the scope of the invention.
In order to solve the problems that in the actual use process, errors exist in the water meters, so that double-meter metering is inaccurate, and even negative values occur when the data difference of the double water meters is calculated, the invention provides two technical schemes.
The first technical scheme is as follows:
the utility model provides a double-circuit hot water metering device, includes flow table I, flow table II, and I has data acquisition unit I, data arithmetic unit I, wireless communication module I its characterized in that flow table, and I signal terminal in data acquisition unit links to each other with I signal terminal in data arithmetic unit, and wireless communication module I links to each other with I signal terminal in data arithmetic unit, and II have data acquisition unit II in the flow table, wireless communication module II, and II signal terminals in data acquisition unit link to each other with wireless communication module II.
The flow meter I is installed on the water supply pipe, and the flow meter II is installed on the water return pipe, or the flow meter I is installed on the water return pipe, and the flow meter II is installed on the water supply pipe.
A double-path hot water metering method adopts the double-path hot water metering device and comprises the following steps:
s1, collecting data of the flow meter I by a data collection unit I of the flow meter I, and sending the data to a data operation unit I;
s2, the data acquisition unit II of the flow meter II acquires data of the flow meter II and sends the data to the wireless communication module I through the wireless communication module II;
s3, the wireless communication module I receives the data of the flow meter II and then sends the data to the data operation unit I;
and S4, the data operation unit I compares the data of the flow meter I and the flow meter II, when the actual data errors of the two flow meters are within the error range preset by the data operation unit I, the default water consumption of a user is zero, and when the actual data errors exceed the error range preset by the data operation unit I, the difference between the water supply pipe and the water return pipe is used as the water consumption.
The data acquisition unit, the data operation unit and the wireless communication module are arranged on the flow meters of the water supply pipe and the water return pipe, data of the flow meters of the water supply pipe and the water return pipe are compared in real time, when actual data errors of the two flow meters are within a preset error range, the water consumption of a default user is zero, and when the actual data errors exceed the preset error range, the water consumption is calculated. The problem that the water meter cannot be metered due to the fact that errors exist in the water meter or the data difference of the double water meters is a negative value is solved. When the error range of the data operation unit is preset, the error range can be set within +/-2% according to the error range of a water supply pipe and a water return pipe specified by the country, and the error range can be corrected according to actual use on the basis of the specified by the country so as to meet the requirement of actual measurement.
The second technical scheme is as follows:
a double-path hot water metering device comprises a secondary instrument, wherein the secondary instrument is internally provided with a data acquisition unit I, a data acquisition unit II and a data operation unit
The secondary instrument is connected with a water supply pipe and a water return pipe.
A double-path hot water metering method adopts the double-path hot water metering device and comprises the following steps:
s1, the data acquisition unit I and the data acquisition unit II of the secondary instrument simultaneously acquire flow data of a water supply pipe and a water return pipe;
and S2, comparing the flow data of the water supply pipe and the water return pipe by the data operation unit of the secondary instrument, defaulting the water consumption of a user to be zero when the actual data error of the water supply pipe and the water return pipe is within the preset error range of the data operation unit, and taking the difference between the water supply pipe and the water return pipe as the water consumption when the actual data error exceeds the preset error range of the data operation unit.
The water supply pipe and the water return pipe are provided with the flow meters, so that the measurement of the data errors of the two flow meters on the water consumption is avoided. When the actual data error of delivery pipe and wet return is when predetermineeing error range, acquiescence user's water consumption is zero, when the actual data error exceedes predetermined error range, will calculate the water consumption. The problem that the water meter cannot be metered due to the fact that errors exist in the water meter or the data difference of the double water meters is a negative value is solved. When the error range of the data operation unit is preset, the error range can be set within +/-2% according to the error range of a water supply pipe and a water return pipe specified by the country, and the error range can be corrected according to actual use on the basis of the specified by the country so as to meet the requirement of actual measurement.
Claims (6)
1. The utility model provides a double-circuit hot water metering device, includes flow table I, flow table II, and I has data acquisition unit I, data arithmetic unit I, wireless communication module I its characterized in that flow table, and I signal terminal in data acquisition unit links to each other with I signal terminal in data arithmetic unit, and wireless communication module I links to each other with I signal terminal in data arithmetic unit, and II have data acquisition unit II in the flow table, wireless communication module II, and II signal terminals in data acquisition unit link to each other with wireless communication module II.
2. The dual-path hot water metering device of claim 1, wherein the flow meter i is mounted to the water supply pipe and the flow meter ii is mounted to the water return pipe, or the flow meter i is mounted to the water return pipe and the flow meter ii is mounted to the water supply pipe.
3. A two-way hot water metering method, characterized in that the two-way hot water metering device of claim 2 is adopted, and the method comprises the following steps:
s1, collecting data of the flow meter I by a data collection unit I of the flow meter I, and sending the data to a data operation unit I;
s2, the data acquisition unit II of the flow meter II acquires data of the flow meter II and sends the data to the wireless communication module I through the wireless communication module II;
s3, the wireless communication module I receives the data of the flow meter II and then sends the data to the data operation unit I;
and S4, the data operation unit I compares the data of the flow meter I and the flow meter II, when the actual data errors of the two flow meters are within the error range preset by the data operation unit I, the default water consumption of a user is zero, and when the actual data errors exceed the error range preset by the data operation unit I, the difference between the water supply pipe and the water return pipe is used as the water consumption.
4. The utility model provides a double-circuit hot water metering device, includes a secondary instrument, its characterized in that secondary instrument contains data acquisition unit I, data acquisition unit II, data arithmetic unit.
5. The dual path hot water metering device of claim 4, wherein the secondary meter is connected to a water supply line and a water return line.
6. A two-way hot water metering method, characterized in that the two-way hot water metering device of claim 5 is adopted, and the method comprises the following steps:
s1, the data acquisition unit I and the data acquisition unit II of the secondary instrument simultaneously acquire flow data of a water supply pipe and a water return pipe;
and S2, comparing the flow data of the water supply pipe and the water return pipe by the data operation unit of the secondary instrument, defaulting the water consumption of a user to be zero when the actual data error of the water supply pipe and the water return pipe is within the preset error range of the data operation unit, and taking the difference between the water supply pipe and the water return pipe as the water consumption when the actual data error exceeds the preset error range of the data operation unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911101030.0A CN110686743A (en) | 2019-11-12 | 2019-11-12 | Double-path hot water metering method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911101030.0A CN110686743A (en) | 2019-11-12 | 2019-11-12 | Double-path hot water metering method and device |
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| CN110686743A true CN110686743A (en) | 2020-01-14 |
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| CN201911101030.0A Pending CN110686743A (en) | 2019-11-12 | 2019-11-12 | Double-path hot water metering method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790771A (en) * | 2021-09-15 | 2021-12-14 | 苏州东剑智能科技有限公司 | Method for metering water consumption of user of circulating water supply system |
| CN114445964A (en) * | 2021-05-10 | 2022-05-06 | 青岛三利水务有限公司 | Intelligent circulating water meter and control method |
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| EP2477020A1 (en) * | 2011-01-17 | 2012-07-18 | Clevergas Holding S.A. | System for detecting a fluid leak |
| CN102818659A (en) * | 2011-06-09 | 2012-12-12 | 沈阳航发热计量技术有限公司 | Measurement system and measurement method for heating water loss |
| CN203274971U (en) * | 2013-06-04 | 2013-11-06 | 樊知轩 | Heat meter having leakage-preventing and alarming functions |
| CN105953950A (en) * | 2016-07-04 | 2016-09-21 | 尚鹏 | Pipeline fluid detection device |
| CN205748723U (en) * | 2016-06-24 | 2016-11-30 | 尚鹏 | A kind of calorimeter |
| CN210719295U (en) * | 2019-11-12 | 2020-06-09 | 迈拓仪表股份有限公司 | Two-way hot water metering device |
-
2019
- 2019-11-12 CN CN201911101030.0A patent/CN110686743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2477020A1 (en) * | 2011-01-17 | 2012-07-18 | Clevergas Holding S.A. | System for detecting a fluid leak |
| CN102818659A (en) * | 2011-06-09 | 2012-12-12 | 沈阳航发热计量技术有限公司 | Measurement system and measurement method for heating water loss |
| CN203274971U (en) * | 2013-06-04 | 2013-11-06 | 樊知轩 | Heat meter having leakage-preventing and alarming functions |
| CN205748723U (en) * | 2016-06-24 | 2016-11-30 | 尚鹏 | A kind of calorimeter |
| CN105953950A (en) * | 2016-07-04 | 2016-09-21 | 尚鹏 | Pipeline fluid detection device |
| CN210719295U (en) * | 2019-11-12 | 2020-06-09 | 迈拓仪表股份有限公司 | Two-way hot water metering device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114445964A (en) * | 2021-05-10 | 2022-05-06 | 青岛三利水务有限公司 | Intelligent circulating water meter and control method |
| CN113790771A (en) * | 2021-09-15 | 2021-12-14 | 苏州东剑智能科技有限公司 | Method for metering water consumption of user of circulating water supply system |
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