CN102288331A - Heat meter verifying device - Google Patents
Heat meter verifying device Download PDFInfo
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- CN102288331A CN102288331A CN2010102074567A CN201010207456A CN102288331A CN 102288331 A CN102288331 A CN 102288331A CN 2010102074567 A CN2010102074567 A CN 2010102074567A CN 201010207456 A CN201010207456 A CN 201010207456A CN 102288331 A CN102288331 A CN 102288331A
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- temperature sensor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000012795 verification Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 15
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a heat meter verifying device. The heat meter verifying device comprises a hot water flow standard system, a matching temperature sensor verifying system and a calculator verifying system, wherein the hot water flow standard system independently verifies a flow sensor of a heat meter; the matching temperature sensor verifying system independently verifies matching temperature sensor of the heat meter; and the calculator verifying system independently verifies the calculator of the heat meter. The invention can independently verify the flow sensor, the temperature sensor and the calculator respectively, carry out component combination verification and total amount verification, meet the requirement of the relevant standard and carry out type verification, compulsory first inspection and production verification work of the heat meter; and the invention has larger flow measurement range, and the maximal verifying diameter can reach DN400.
Description
Technical field
The present invention relates to a kind of calibrating equipment, especially relate to a kind of calorimeter calibrating installation.
Background technology
At present, known calorimeter is made up of flow sensor, pairing temperature sensor and three parts of counter.By the national metrological verification regulations requirement, calorimeter three parts of reply when finalizing the design calibrating are tested respectively, the calibrating of hot water flow, pairing temperature sensor calibrating and counter calibrating; Dispatch from the factory calibrating or can carry out total amount calibrating or component combination calibrating when forcing first inspection, can be to calorimeter whole or flow sensor, the counter that has a pairing temperature sensor are examined and determine respectively.Therefore, how to invent out the calorimeter calibrating installation that can carry out component calibrating, component combination calibrating and total amount calibrating, just measurement verification department and industry metrological service problem anxious to be solved to three parts.
Summary of the invention
The purpose of this invention is to provide a kind of calorimeter calibrating installation that can carry out component calibrating, component combination calibrating and total amount calibrating to flow sensor, pairing temperature sensor and the counter of calorimeter.
The technical solution adopted for the present invention to solve the technical problems is: a kind of calorimeter calibrating installation, comprise hot water flow modular system, pairing temperature sensor verification system, counter verification system, it is characterized in that: described hot water flow modular system is independent to be examined and determine the flow sensor of calorimeter, the pairing temperature sensor verification system is independent examines and determine the pairing temperature sensor of calorimeter, and the counter verification system is independent examines and determine the counter of calorimeter.
Described hot water flow modular system is made up of heat cycles equipment, voltage-stabilizing system, exhaust system, flow regulation, commutator, flow standard device, automatic control system; It is to guarantee thermostatical circulating water by controlling the running of heating unit that heat cycles equipment mainly acts on, and the constant temperature recycle unit carries out high-precision control by control panel or computer software, and temperature is controlled automatically by high Accuracy PID, is provided with two monitoring temperature points; Voltage-stabilizing system adopts pressurizing vessel as the voltage stabilizing measure, adopts constant voltage control to pass through variable frequency pump; Exhaust system has promptly designed gas and water separator in buffer tank; Flow regulation is to realize the adjusting of the tested flow point of various bore calorimeters by the high precision electric control valve, can use automatic control equipment and software to realize the automatic adjusting of flow according to the flow feedback of electromagnetic flowmeter; Commutator adopts special-purpose commutator, has guaranteed the consistance of commutating period; The flow standard device adopts three modes that the high-precision electronic scale combines with six high precision electromagnetic flowmeters; Automatic control system mainly is to realize the automatic collection of tested surface low amount or the second-class platinum-resistance thermometer signal of energy pulse signal, electromagnetic flowmeter, electronic scales and calibration cell, the switch control of operated pneumatic valve, functions such as the automatic adjusting of electric control valve and real time data acquisition.
Described pairing temperature sensor verification system is made up of calibration cell, second-class standard platinum thermal resistance and six and half general digital tables.
Described computing machine verification system can be gathered the standard thermal resistance automatically; The counter verification system is made up of standard resistance box, basic pulse generator etc.
Hot water flow modular system of the present invention has mass method and method of standard table to the method for the flow sensor calibrating of calorimeter, mass method is according to the formula Q=∫ qm Δ hd τ (heat that the Q representative discharges or absorbs, qm represents the mass rate of the water of the heat energy table of flowing through, Δ h representative enthalpy of water under the entrance and exit temperature of heat-exchange system is poor, τ represents the time), calculate the quality of water outlet, calculate the heat that discharges or absorb, and contrast the indicating value of tested table, calculate tested Watch Error, verification process is to carry out in the flow process of water, the commutator controlled water flow imports and derivation is weighed container, electronic scales is reading under static state, and the action of commutator is by the volume of gathering tested table or the control of heat pulse output signal; Method of standard table is according to the formula Q=∫ ρ qv Δ hd τ (heat that the Q representative discharges or absorbs, qv represents the volumetric flow rate of the water of the heat energy table of flowing through, ρ represents the density of the water of the heat energy table of flowing through, Δ h representative is under the entrance and exit temperature of heat-exchange system, and the enthalpy of water is poor, and τ represents the time), the flow that detection is flowed through and shown, calculate the heat that discharges or absorb, and contrast the indicating value of tested table, calculate tested Watch Error.Adopt the static reading method, standard scale and tested table are readings under the static situation of water.
Further, but the present invention's flow sensor, temperature sensor and counter examine and determine separately respectively, can carry out component combination calibrating, also can carry out the total amount calibrating.
The invention has the beneficial effects as follows: the present invention can satisfy the requirement of CJ128-2007 calorimeter, JJG225-2001 calorimeter vertification regulation, People's Republic of China's city-building industry standard " calorimeter calibrating installation ", People's Republic of China's national metrological verification regulations " heat meter calibration facility ", OMIL R75 and EN 1434, can carry out the pattern calibrating of calorimeter, mandatory first inspection and production calibration operation; The present invention can examine and determine flow range 0.2m
3/ h-1200m
3The calorimeter of/h, flow measurement range is bigger; Can examine and determine the calorimeter that the nominal bore is DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN400, maximum can be examined bore can reach DN400.
Description of drawings
Fig. 1 is a floor plan of the present invention.
Fig. 2 is the mass method process flow diagram of hot water flow modular system of the present invention to the flow sensor calibrating of calorimeter.
Fig. 3 is the method for standard table process flow diagram of hot water flow modular system of the present invention to the flow sensor calibrating of calorimeter.
Fig. 4 is temperature sensor testing process figure of the present invention.
Fig. 5 is counter testing process figure of the present invention.
Fig. 6 is that crushing test of the present invention detects testing process figure.
1. electronic scales among the figure, 2.10m
3Graduated cylinder, 3.3m
3Graduated cylinder, 4. electromagnetic flowmeter, 5. calibration cell, 6. pairing temperature sensor, 7. guide rail, 8. expansion bend, 9. computer control part, 10. buffer tank, 11. water tanks, 12. variable frequency pumps.
Embodiment
In Fig. 1, a kind of calorimeter calibrating installation, comprise hot water flow modular system, pairing temperature sensor verification system, counter verification system, the hot water flow modular system is independent to be examined and determine the flow sensor of calorimeter, the pairing temperature sensor verification system is independent examines and determine the pairing temperature sensor of calorimeter, and the counter verification system is independent examines and determine the counter of calorimeter; The hot water flow modular system is made up of heat cycles equipment, voltage-stabilizing system, exhaust system, flow regulation, commutator, flow standard device, automatic control system; It is to guarantee thermostatical circulating water by controlling the running of heating unit that heat cycles equipment mainly acts on, and the constant temperature recycle unit carries out high-precision control by control panel or computer software, and temperature is controlled automatically by high Accuracy PID, is provided with two monitoring temperature points; Voltage-stabilizing system adopts pressurizing vessel as the voltage stabilizing measure, adopts constant voltage control by variable frequency pump (12); Exhaust system has promptly designed gas and water separator in buffer tank (10); Flow regulation is to realize the adjusting of the tested flow point of various bore calorimeters by the high precision electric control valve, can use automatic control equipment and software to realize the automatic adjusting of flow according to the flow feedback of electromagnetic flowmeter (10); Commutator adopts special-purpose commutator, has guaranteed the consistance of commutating period; The mode that the flow standard device adopts three high-precision electronic scales (1) to combine with six high precision electromagnetic flowmeters (4); Automatic control system is located in the computer control part (10), it mainly is the automatic collection that realizes tested surface low amount or energy pulse signal, electromagnetic flowmeter (4), electronic scales (1) and the second-class platinum-resistance thermometer signal of calibration cell (5), the switch control of operated pneumatic valve, functions such as the automatic adjusting of electric control valve and real time data acquisition; The pairing temperature sensor verification system is made up of calibration cell (5), second-class standard platinum thermal resistance and six and half general digital tables; The computing machine verification system can be gathered the standard thermal resistance automatically; The counter verification system is made up of standard resistance box, basic pulse generator etc.
During use, the present invention can carry out the component calibrating, and flow sensor, temperature sensor and counter are examined and determine separately respectively, mainly is applicable to the calibrating of split type calorimeter; Link together for thermal resistance and counter in the monoblock type calorimeter, can't adopt the calorimeter of component calibrating, can adopt the component combination calibrating, flow sensor is examined and determine separately during calibrating, and temperature sensor and counter are combined calibrating; The calibrating of the energy value that in a period of time, measures for calorimeter, can adopt the total amount calibrating, flow sensor is contained on the water flow standard apparatus, give tested table simulation temperature signal in the calibration cell of two different temperatures of pairing temperature sensor insertion, note the standard volume amount that tested table is passed by by standard electronic scale or standard scale, read two temperature of calibration cell, the standard energy value of COMPUTER CALCULATION and the energy indicating value of tested table are compared, calculate the error of calorimeter.
In Fig. 1, Fig. 2, hot water flow modular system of the present invention is at first calculated the quality of water to the mass method of the flow sensor calibrating of calorimeter, calculates the heat that discharges or absorb then, and contrasts the indicating value of tested table, calculates tested Watch Error.Verification process is to carry out in the flow process of water, the commutator controlled water flow imports and derivation is weighed container, and electronic scales is reading under static state.The action of commutator is by the volume of gathering tested table or the control of heat pulse output signal.This kind detection method can be eliminated the start and stop mass method in valve opening and the influence of the unexpected variation his-and-hers watches of flow when closing, and the automaticity height.
In Fig. 1, Fig. 3, hot water flow modular system of the present invention detects the flow of the table of flowing through to the method for standard table of the flow sensor calibrating of calorimeter, calculates the heat that discharges or absorb, and contrasts the indicating value of tested table, calculates tested Watch Error.Adopt the static reading method, standard scale and tested table are readings under the static situation of water.
In Fig. 1, Fig. 4, temperature sensor of the present invention detects, and is made up of calibration cell, second-class standard platinum thermal resistance and six and half general digital tables, by reading the resistance of second-class standard platinum thermal resistance, converses out temperature, matches accuracy computation then.
In Fig. 1, Fig. 5, counter of the present invention detects, and opens by twice and closes terminal valve, wait pipe flow speed to be 0 after, read the final value of the flow and the heat of detected table, and then carry out Error Calculation.
In Fig. 1, Fig. 6, crushing test of the present invention detects, and at first opens terminal valve, regulates flow velocity then to nominal flow rate, the maximum pressure drop of reading detected table at last.
The present invention can satisfy the requirement of CJ128-2007 calorimeter, JJG225-2001 calorimeter vertification regulation, People's Republic of China's city-building industry standard " calorimeter calibrating installation ", People's Republic of China's national metrological verification regulations " heat meter calibration facility ", OMIL R75 and EN 1434, can carry out the pattern calibrating of calorimeter, mandatory first inspection and production calibration operation; The present invention can examine and determine flow range 0.2m
3/ h-1200m
3The calorimeter of/h, flow measurement range is bigger; Can examine and determine the calorimeter that the nominal bore is DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN400, maximum can be examined bore can reach DN400.
Claims (7)
1. calorimeter calibrating installation, comprise hot water flow modular system, pairing temperature sensor verification system, counter verification system, it is characterized in that: described hot water flow modular system is independent to be examined and determine the flow sensor of calorimeter, the pairing temperature sensor verification system is independent examines and determine the pairing temperature sensor of calorimeter, and the counter verification system is independent examines and determine the counter of calorimeter.
2. a kind of calorimeter calibrating installation according to claim 1 is characterized in that: described hot water flow modular system is made up of heat cycles equipment, voltage-stabilizing system, exhaust system, flow regulation, commutator, flow standard device, automatic control system; It is to guarantee thermostatical circulating water by controlling the running of heating unit that heat cycles equipment mainly acts on, and the constant temperature recycle unit carries out high-precision control by control panel or computer software, and temperature is controlled automatically by high Accuracy PID, is provided with two monitoring temperature points; Voltage-stabilizing system adopts pressurizing vessel as the voltage stabilizing measure, adopts constant voltage control to pass through variable frequency pump; Exhaust system has promptly designed gas and water separator in buffer tank; Flow regulation is to realize the adjusting of the tested flow point of various bore calorimeters by the high precision electric control valve, can use automatic control equipment and software to realize the automatic adjusting of flow according to the flow feedback of electromagnetic flowmeter; Commutator adopts special-purpose commutator, has guaranteed the consistance of commutating period; The flow standard device adopts three modes that the high-precision electronic scale combines with six high precision electromagnetic flowmeters; Automatic control system mainly is to realize the automatic collection of tested surface low amount or the second-class platinum-resistance thermometer signal of energy pulse signal, electromagnetic flowmeter, electronic scales and calibration cell, the switch control of operated pneumatic valve, functions such as the automatic adjusting of electric control valve and real time data acquisition.
3. a kind of calorimeter calibrating installation according to claim 1 is characterized in that: described pairing temperature sensor verification system is made up of calibration cell, second-class standard platinum thermal resistance and six and half general digital tables.
4. a kind of calorimeter calibrating installation according to claim 1 is characterized in that: described computing machine verification system can be gathered the standard thermal resistance automatically; The counter verification system is made up of standard resistance box, basic pulse generator etc.
5. according to claim 1,2 described a kind of calorimeter calibrating installations, it is characterized in that: the hot water flow modular system has mass method and method of standard table to the method for the flow sensor calibrating of calorimeter.
6. according to claim 1,2,3,4 described a kind of calorimeter calibrating installations, it is characterized in that: but flow sensor, temperature sensor and counter examine and determine separately respectively, can carry out component combination calibrating, also can carry out the total amount calibrating.
7. according to claim 1,2,3,4,5,6 described a kind of calorimeter calibrating installations, it is characterized in that: can examine and determine flow range 0.2m
3/ h-1200m
3The calorimeter of/h can be examined and determine the calorimeter that the nominal bore is DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN400, and it is DN400 that maximum can be examined bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102074567A CN102288331A (en) | 2010-06-18 | 2010-06-18 | Heat meter verifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102074567A CN102288331A (en) | 2010-06-18 | 2010-06-18 | Heat meter verifying device |
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| Publication Number | Publication Date |
|---|---|
| CN102288331A true CN102288331A (en) | 2011-12-21 |
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|---|---|---|---|
| CN2010102074567A Pending CN102288331A (en) | 2010-06-18 | 2010-06-18 | Heat meter verifying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278265A (en) * | 2013-04-19 | 2013-09-04 | 天津市吉港电子科技有限公司 | Calibrating apparatus for heat meter |
| CN104458063A (en) * | 2014-12-12 | 2015-03-25 | 合肥瑞纳表计有限公司 | Energy-saving flow calibration device and method of heat meter |
| CN105261186A (en) * | 2015-11-12 | 2016-01-20 | 刘新中 | Four-meter data acquisition simulating display device |
| CN109297571A (en) * | 2018-11-21 | 2019-02-01 | 潍坊市计量测试所 | An 800mm water flow standard device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214827A (en) * | 1982-06-07 | 1983-12-14 | Showa Denko Kk | Inspection of heat flow meter |
| CN2602357Y (en) * | 2003-03-14 | 2004-02-04 | 左晔 | Heavy caliber testing device for heat meter |
| CN1710391A (en) * | 2004-06-18 | 2005-12-21 | 沈阳太宇机电设备有限公司 | Thermal-energy meter checking device |
| CN2802481Y (en) * | 2005-07-15 | 2006-08-02 | 吴兴中 | Integral thermal meter testing device |
| CN201003994Y (en) * | 2006-08-31 | 2008-01-09 | 浙江天正电气股份有限公司 | Automatic marking and detection device for heat meter |
-
2010
- 2010-06-18 CN CN2010102074567A patent/CN102288331A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214827A (en) * | 1982-06-07 | 1983-12-14 | Showa Denko Kk | Inspection of heat flow meter |
| CN2602357Y (en) * | 2003-03-14 | 2004-02-04 | 左晔 | Heavy caliber testing device for heat meter |
| CN1710391A (en) * | 2004-06-18 | 2005-12-21 | 沈阳太宇机电设备有限公司 | Thermal-energy meter checking device |
| CN2802481Y (en) * | 2005-07-15 | 2006-08-02 | 吴兴中 | Integral thermal meter testing device |
| CN201003994Y (en) * | 2006-08-31 | 2008-01-09 | 浙江天正电气股份有限公司 | Automatic marking and detection device for heat meter |
Non-Patent Citations (1)
| Title |
|---|
| 汤振娟: "大口径热量表检定技术方案", 《济南大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278265A (en) * | 2013-04-19 | 2013-09-04 | 天津市吉港电子科技有限公司 | Calibrating apparatus for heat meter |
| CN103278265B (en) * | 2013-04-19 | 2016-04-13 | 天津市吉港电子科技有限公司 | A kind of heat meter calibrating apparatus |
| CN104458063A (en) * | 2014-12-12 | 2015-03-25 | 合肥瑞纳表计有限公司 | Energy-saving flow calibration device and method of heat meter |
| CN105261186A (en) * | 2015-11-12 | 2016-01-20 | 刘新中 | Four-meter data acquisition simulating display device |
| CN109297571A (en) * | 2018-11-21 | 2019-02-01 | 潍坊市计量测试所 | An 800mm water flow standard device |
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Application publication date: 20111221 |