CN104990646A - Heat energy meter pressure loss measurement device - Google Patents
Heat energy meter pressure loss measurement device Download PDFInfo
- Publication number
- CN104990646A CN104990646A CN201510402064.9A CN201510402064A CN104990646A CN 104990646 A CN104990646 A CN 104990646A CN 201510402064 A CN201510402064 A CN 201510402064A CN 104990646 A CN104990646 A CN 104990646A
- Authority
- CN
- China
- Prior art keywords
- heat energy
- energy meter
- pressure
- differential pressure
- measurement device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a heat energy meter pressure loss measurement device comprising a heat energy meter which is installed on a flow detecting bench. The connecting pipe of the flow detecting bench and the water inlet and outlet of the heat energy meter are respectively connected with a differential pressure sampling pipe. The heat energy meter pressure loss measurement device is characterized in that a water inlet pressure tapping port and a water outlet pressure tapping port are respectively arranged on the differential pressure sampling pipe. The water inlet pressure tapping port and the water outlet pressure tapping port are respectively provided with a control valve. The water outlet parts of the control valves are respectively provided with a pressure stabilizing device. The heat energy meter pressure loss measurement device comprises a differential pressure transmitter of which the measuring end is connected with the water outlet ends of the two pressure stabilizing devices. The heat energy meter pressure loss measurement device also comprises a digital displayer. The signal output end of the differential pressure transmitter is electrically connected with the signal input end of the digital displayer. The heat energy meter pressure loss measurement device is reasonable in structural design, and pressure loss quantitative measurement can be performed on the heat energy meter before installation and use so that the measurement method is easy and the measurement result is accurate.
Description
technical field:
The present invention relates generally to a kind of heat energy meter crushing measurement mechanism.
background technology:
Heat energy meter, as one of civilian four tables, plays an important role as trade settlement instrument in heat metering, therefore particularly important to the quantitative measurment of its property indices (error of indication, sealing, crushing etc.).
Current domestic calorimeter is formed primarily of flow sensor, temperature sensor, integrating instrument (counter) three parts.Its principle of work is on the pipeline of entrance and exit pairing temperature sensor being arranged on respectively heat exchange loop, is arranged on by flow sensor on entrance or outlet.Flow sensor sends flow signal, and pairing temperature sensor provides the temperature signal of entrance and exit, and counter gathers flow signal and temperature signal, through calculating, demonstrates thermal liquid from entrance to exporting the calorie value discharged.
When heat energy meter is in running order, when thermal liquid flows through heat-meter flow-meter body, certain pressure loss can be produced in flowmeter cavity, the existence of this crushing (i.e. pressure reduction values) will directly have influence on the heat hydraulic pressure of heating resident caliduct house lead in end, if the crushing of heat energy meter is excessive, the hot water that there will be circulation in radiator in heating user family causes underfed because pressure is low and affects heating effect.Current domestic heat energy meter brand is more, and the heat energy meter structure that Ge Jia manufacturer produces, principle are different, and the crushing of each brand heat energy meter is to the greatest extent not identical yet.Being defined as heat energy meter crushing in China's " JJG225-2001 heat energy meter vertification regulation ": the maximum crushing △ P of heat meter flow sensor under rated flow should more than 25Kpa.Therefore to particularly important to the quantitative measurment of its crushing before heat energy meter is installed and used.
summary of the invention:
The object of the invention is exactly the defect in order to make up prior art, provides a kind of heat energy meter crushing measurement mechanism of reasonable in design.
The present invention is achieved by the following technical solutions:
A kind of heat energy meter crushing measurement mechanism, include the heat energy meter be arranged on flow verification platform, differential pressure stopple coupon is linked with respectively between the connecting pipe of flow verification platform and the intake-outlet of heat energy meter, it is characterized in that: differential pressure stopple coupon is respectively equipped with into water pressure tappings and water outlet pressure tappings, water inlet pressure tappings and water outlet pressure tappings are separately installed with operation valve, and the water delivering orifice position of operation valve is separately installed with stable-pressure device; Include differential pressure transmitter, UNICOM between the water side of the measuring junction of differential pressure transmitter and two stable-pressure devices; Include digital indicator, the signal output part of differential pressure transmitter is electrically connected with the signal input part of digital indicator.
A kind of heat energy meter crushing measurement mechanism, is characterized in that: respectively by being threaded between described differential pressure stopple coupon and the intake-outlet of heat energy meter; O RunddichtringO is adopted to connect by starting meter-clamping apparatus axially-movable pneumatic clamping between the connecting pipe of differential pressure stopple coupon and flow verification platform.
The position that described differential pressure stopple coupon is connected with operation valve is three-port structure, and described two differential pressure stopple coupons form differential pressure sampler.The tested heat energy meter preparing to carry out crushing measurement is filled on the invention, start flow verification platform, due to the design of differential pressure sampler system three-port structure, thermal liquid is flowing through while tested heat energy meter examines and determine its error of indication, water inlet end pressure (high pressure) and the water side pressure (low pressure) of tested heat energy meter are obtained by the upper port of differential pressure sampler (three-way device), sample laggard, discharge pressure delivers to stable-pressure device, differential pressure measuring installation is delivered to again after voltage stabilizing, differential pressure signal is converted into 4 ~ 20mA current signal and exports digital indicator to by differential pressure measuring installation, digital indicator carries out signal transacting to 4 ~ 20mA current signal that differential pressure measuring installation inputs, analog-to-digital conversion etc., the crushing actual measured value of tested heat energy meter is presented on digital display screen in the mode of digital quantity.
Be connected by pneumatic clamps meter apparatus.This device mainly plays a role as follows: the heat energy meter of flow verification platform and crushing to be measured is linked to be an entirety (i.e. a system) by (1); (2) the water-in and water-out pressure flowing through crushing heat energy meter to be measured is sampled.
Stable-pressure device: carry out voltage stabilizing to the force samples value of heat energy meter water inlet end, water side, prevents the heat energy meter water inlet end because the system disturbance of flow verification platform causes, water side pressure surge, causes crushing measuring error larger.
Differential pressure transmitter is differential pressure measuring installation: to after heat energy meter water inlet end, water side voltage stabilizing force samples value carry out quantitative measurment, pressure signal is converted into 4 ~ 20mA current signal export.
Digital indicator: signal transacting, analog-to-digital conversion etc. are carried out to 4 ~ 20mA current signal of differential pressure measuring installation input, the crushing △ P actual measured value of tested heat energy meter is presented on digital display screen in the mode of digital quantity.
Advantage of the present invention is:
Reasonable in design of the present invention, carries out the quantitative measurment of crushing to heat energy meter before can installing and using, measuring method is simple, and measurement result is accurate.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the enforcement figure that the present invention is applied on flow verification platform.
embodiment:
See accompanying drawing.
A kind of heat energy meter crushing measurement mechanism, include the heat energy meter 1 be arranged on flow verification platform, differential pressure stopple coupon is linked with respectively between the connecting pipe of flow verification platform and the intake-outlet of heat energy meter, differential pressure stopple coupon is respectively equipped with into water pressure tappings 2 and water outlet pressure tappings 3, water inlet pressure tappings 2 and water outlet pressure tappings 3 are separately installed with operation valve 4, and the water delivering orifice position of operation valve 4 is separately installed with stable-pressure device 5; Include differential pressure transmitter 6, UNICOM between the water side of the measuring junction of differential pressure transmitter 6 and two stable-pressure devices 5; Include digital indicator 7, the signal output part of differential pressure transmitter 6 is electrically connected with the signal input part of digital indicator 7.
Respectively by being threaded between the intake-outlet of differential pressure stopple coupon and heat energy meter 1; O RunddichtringO is adopted to connect by starting meter-clamping apparatus axially-movable pneumatic clamping between the connecting pipe of differential pressure stopple coupon and flow verification platform.
Claims (2)
1. a heat energy meter crushing measurement mechanism, include the heat energy meter be arranged on flow verification platform, differential pressure stopple coupon is linked with respectively between the connecting pipe of flow verification platform and the intake-outlet of heat energy meter, it is characterized in that: differential pressure stopple coupon is respectively equipped with into water pressure tappings and water outlet pressure tappings, water inlet pressure tappings and water outlet pressure tappings are separately installed with operation valve, and the water delivering orifice position of operation valve is separately installed with stable-pressure device; Include differential pressure transmitter, UNICOM between the water side of the measuring junction of differential pressure transmitter and two stable-pressure devices; Include digital indicator, the signal output part of differential pressure transmitter is electrically connected with the signal input part of digital indicator.
2. a kind of heat energy meter crushing measurement mechanism according to claim 1, is characterized in that: respectively by being threaded between described differential pressure stopple coupon and the intake-outlet of heat energy meter; O RunddichtringO is adopted to connect by starting meter-clamping apparatus axially-movable pneumatic clamping between the connecting pipe of differential pressure stopple coupon and flow verification platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402064.9A CN104990646A (en) | 2015-07-08 | 2015-07-08 | Heat energy meter pressure loss measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510402064.9A CN104990646A (en) | 2015-07-08 | 2015-07-08 | Heat energy meter pressure loss measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104990646A true CN104990646A (en) | 2015-10-21 |
Family
ID=54302488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510402064.9A Pending CN104990646A (en) | 2015-07-08 | 2015-07-08 | Heat energy meter pressure loss measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104990646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031048A (en) * | 2019-04-25 | 2019-07-19 | 淮安赛希尔自动化仪表有限公司 | A kind of differential pressure flowmeter differential pressure signal stable-pressure device |
| CN112414521A (en) * | 2020-11-09 | 2021-02-26 | 湖南常德牌水表制造有限公司 | Water meter pressure loss testing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2516956Y (en) * | 2002-01-24 | 2002-10-16 | 天津市计量技术研究所 | Testing device for heat meter |
| CN2802481Y (en) * | 2005-07-15 | 2006-08-02 | 吴兴中 | Integral thermal meter testing device |
| CN102252715A (en) * | 2011-04-15 | 2011-11-23 | 王荣虎 | Europa sensor and flow measurement control system |
| CN103292848A (en) * | 2013-05-13 | 2013-09-11 | 华北电力大学 | Differential-pressure flow measurement device for fluids in circular-section pipes and measuring method |
| CN104075828A (en) * | 2013-03-26 | 2014-10-01 | 纪周 | Large-diameter standard throttle device-type heat meter and calibration method thereof |
| CN203929457U (en) * | 2014-05-22 | 2014-11-05 | 西安京兆电力科技有限公司 | A kind of gun barrel formula Antichoking blast pressure sampler |
| CN204855044U (en) * | 2015-07-08 | 2015-12-09 | 合肥热电集团有限公司 | Measuring device is decreased to heat energy gauge pressure |
-
2015
- 2015-07-08 CN CN201510402064.9A patent/CN104990646A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2516956Y (en) * | 2002-01-24 | 2002-10-16 | 天津市计量技术研究所 | Testing device for heat meter |
| CN2802481Y (en) * | 2005-07-15 | 2006-08-02 | 吴兴中 | Integral thermal meter testing device |
| CN102252715A (en) * | 2011-04-15 | 2011-11-23 | 王荣虎 | Europa sensor and flow measurement control system |
| CN104075828A (en) * | 2013-03-26 | 2014-10-01 | 纪周 | Large-diameter standard throttle device-type heat meter and calibration method thereof |
| CN103292848A (en) * | 2013-05-13 | 2013-09-11 | 华北电力大学 | Differential-pressure flow measurement device for fluids in circular-section pipes and measuring method |
| CN203929457U (en) * | 2014-05-22 | 2014-11-05 | 西安京兆电力科技有限公司 | A kind of gun barrel formula Antichoking blast pressure sampler |
| CN204855044U (en) * | 2015-07-08 | 2015-12-09 | 合肥热电集团有限公司 | Measuring device is decreased to heat energy gauge pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031048A (en) * | 2019-04-25 | 2019-07-19 | 淮安赛希尔自动化仪表有限公司 | A kind of differential pressure flowmeter differential pressure signal stable-pressure device |
| CN112414521A (en) * | 2020-11-09 | 2021-02-26 | 湖南常德牌水表制造有限公司 | Water meter pressure loss testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN203321939U (en) | Hydraulic cylinder internal leakage composite detection system | |
| CN102889906A (en) | Single-pipe gas relay detecting bench, centering clamping mechanism and detection method thereof | |
| RU2013132615A (en) | NUCLEAR MAGNETIC FLOW METER | |
| CN103837215B (en) | Commutation valve type p.V.T.t method gas flow meter | |
| CN201497531U (en) | Heating pipe network steam flow totalizer | |
| CN104990646A (en) | Heat energy meter pressure loss measurement device | |
| CN109029592A (en) | A kind of the bypass measuring device and application method of pipeline water flow amount | |
| CN204855044U (en) | Measuring device is decreased to heat energy gauge pressure | |
| CN202836631U (en) | Single-pipe buchholz relay detecting platform and centring clamping mechanism special for buchholz relay detection | |
| CN102798444B (en) | High-pressure water injection meter detecting device | |
| CN202720028U (en) | Detecting device for high-pressure water meter | |
| CN209673198U (en) | A kind of online method of standard table flowmeter calibrating installation | |
| CN201152757Y (en) | Liquid revolving flow meter having pressure and temperature detection | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN201507434U (en) | Laboratory water purifier water purification pump testing device | |
| CN203786104U (en) | Automatic calibrating device for catalytic combustion type methane sensor | |
| CN209117081U (en) | A kind of bypass measuring device of pipeline water flow amount | |
| CN206387478U (en) | A kind of oiling machine flow meter performance testing device | |
| CN105043600A (en) | Intelligent large caliber calorimeter detection device and method | |
| CN203745052U (en) | Container parallel connection and reversing valve type pVTt method gas flow device | |
| CN204575156U (en) | Compressed air require proving installation | |
| CN105651360A (en) | Open-close circulating flow meter verification apparatus | |
| CN204177426U (en) | Plug-in type one-piece type temperature and pressure compensation holder hand shaft flowmeter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
|
| RJ01 | Rejection of invention patent application after publication |