CN2516956Y - Testing device for heat meter - Google Patents
Testing device for heat meter Download PDFInfo
- Publication number
- CN2516956Y CN2516956Y CN 02202405 CN02202405U CN2516956Y CN 2516956 Y CN2516956 Y CN 2516956Y CN 02202405 CN02202405 CN 02202405 CN 02202405 U CN02202405 U CN 02202405U CN 2516956 Y CN2516956 Y CN 2516956Y
- Authority
- CN
- China
- Prior art keywords
- water pipe
- pipe
- flow
- flow water
- low discharge
- 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.)
- Expired - Fee Related
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to a heat meter detecting device used for heat metering. The utility model is characterized in that: a flow pipe is communicated between a water inlet pipe and a water outlet pipe; an automatic adjusting valve and a standard flow meter are arranged on the flow pipe; a water pump controlled through a variable frequency and constant pressure controller is also arranged on the water inlet pipe. The utility model has the advantages of being simple in structure, conveniently using, effectively improving detecting range and detecting precision of the heat meter, fully meeting requirements of quantity-transfer system, suiting for regulations suggested by /heat meter/of No. 75 International Organization of Legal Metrology (OIMLR) of level two and three and tracing the origin to highest national standard (datum).
Description
Technical field
The utility model relates to the calorimeter that is used for heat metering, especially a kind of calorimeter calibrating installation.
Background technology
At present, China has determined to popularize the calorimeter of heating installation meterage, and it is scientific that the use of calorimeter makes that heating work has more.A lot of enterprises has designed various calorimeters, how to examine and determine calorimeter and whether meets national regulation, never a unified useful test instrument.Though some units have also designed some calibrating instruments, but owing to have some technical matterss at current constant voltage (pressure is non-constant), flowmeter metering aspects such as (adopting other flowmeters such as turbine), cause accuracy of detection lower, be not inconsistent resultant and pass the requirement that systematic error is distributed.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of prior art, and a kind of constant pressure, flow speed stability, calorimeter calibrating installation that accuracy in detection is high are provided.
Of the present utility model being achieved in that
Between water inlet pipe and rising pipe, be communicated with the flow water pipe, on this flow water pipe automatic regulating valve door and proving flowmeter be installed, the water pump by the control of frequency-changing pressure stabilizing controller also is installed on water inlet pipe.
The flow water pipe that is communicated with between described water inlet pipe and the rising pipe is three flow water pipes, be respectively low discharge water pipe, middle flow water pipe and big flow water pipe, wherein the flow installed of low discharge water pipe is counted mass flowmeter, described in the flowmeter installed of flow water pipe and big flow water pipe be electromagnetic flowmeter; At the pump outlet place one pressure transducer is installed also; On low discharge water pipe, middle flow water pipe, a viewer is installed respectively; Low discharge water pipe, middle flow water pipe and big flow water pipe all place in the casing.
Advantage of the present utility model and good effect are:
1. adopt the water pump that has constant-voltage controller and pressure transducer as current stable, constant voltage are provided, at first provide technical foundation for the accuracy of identifying calorimeter;
2. the low discharge water pipe of installing between rising pipe and water inlet pipe, middle flow water pipe and big flow water pipe can be realized calorimeter is identified the current of different flow, be applicable to the calorimeter of different flow, improve the scope and the accuracy of calibrating, installation quality flowmeter on the low discharge water pipe, can improve the calibration accuracy of low discharge calorimeter, its minimum calibrating flow can reach 10L/H;
3. whole apparatus structure is simple, easy to use, improve the calibrating scope and the calibration accuracy of calorimeter effectively, reached the requirement of amount biography system fully, meet 2,3 grades of OIML OIMLR75 numbers " calorimeter " suggestion defined, and can be traceable to national highest standard (benchmark).
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail:
Be communicated with three flow water pipes between water inlet pipe 1 and the rising pipe 14, be respectively low discharge water pipe 11, middle flow water pipe 12 and big flow water pipe 13, viewer 5, mass flowmeter 7 and automatic regulating valve door 9 are installed on the low discharge water pipe, viewer 6, electromagnetic flowmeter 8 and automatic regulating valve door 10 are installed on middle flow water pipe, on big flow water pipe, electromagnetic flowmeter 16 and automatic regulating valve door 15 are installed.Three parallel installations of flow water pipe and placing in the casing 17.
Water pump 2 by frequency-changing pressure stabilizing controller 3 and pressure transducer 4 controls is installed on the water inlet pipe outside casing, and this pressure transducer is installed in the pump outlet place.
Principle of work of the present utility model is:
The water pump pump water of current (arrow direction) by installing on the water inlet pipe, and providing the current of constant voltage to water inlet pipe by constant-voltage controller, these constant voltage current provide control signal to control the size of the normal pressure and the standard current of water pump pump water by pressure transducer.Standard constant voltage current enter in the casing, if belong to the current (10-500L/H) of low discharge, then the automatic regulating valve door is opened the low discharge water pipe and is closed middle flow water pipe and big flow water pipe, and these current provide high-quality constant voltage current by mass flowmeter to rising pipe; If the current (0.5-3m of flow in belonging to
3/ H) or the current (3-30m of big flow
3/ H), flow water pipe or big flow water pipe in then opening and close the low discharge water pipe provide the high-quality current of the standard that needs to rising pipe.This device is controlled the automatic regulating valve door by computing machine for the size of current and hydraulic pressure.
Claims (5)
1. calorimeter calibrating installation, constitute by water inlet pipe, rising pipe, water pump, automatic regulating valve door, it is characterized in that: between water inlet pipe and rising pipe, be communicated with the flow water pipe, on this flow water pipe automatic regulating valve door and proving flowmeter are installed, the water pump by the control of frequency-changing pressure stabilizing controller also is installed on water inlet pipe.
2. calorimeter calibrating installation according to claim 1, it is characterized in that: the flow water pipe that is communicated with between described water inlet pipe and the rising pipe is three flow water pipes, be respectively low discharge water pipe, middle flow water pipe and big flow water pipe, wherein the flow installed of low discharge water pipe is counted mass flowmeter, described in the flowmeter installed of flow water pipe and big flow water pipe be electromagnetic flowmeter.
3. calorimeter calibrating installation according to claim 1 is characterized in that: at the pump outlet place one pressure transducer is installed also.
4. calorimeter calibrating installation according to claim 2 is characterized in that: on low discharge water pipe, middle flow water pipe a viewer is installed respectively.
5. according to claim 1,2,4 described calorimeter calibrating installations, it is characterized in that: low discharge water pipe, middle flow water pipe and big flow water pipe all place in the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202405 CN2516956Y (en) | 2002-01-24 | 2002-01-24 | Testing device for heat meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202405 CN2516956Y (en) | 2002-01-24 | 2002-01-24 | Testing device for heat meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516956Y true CN2516956Y (en) | 2002-10-16 |
Family
ID=33684947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202405 Expired - Fee Related CN2516956Y (en) | 2002-01-24 | 2002-01-24 | Testing device for heat meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516956Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990646A (en) * | 2015-07-08 | 2015-10-21 | 合肥热电集团有限公司 | Heat energy meter pressure loss measurement device |
-
2002
- 2002-01-24 CN CN 02202405 patent/CN2516956Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990646A (en) * | 2015-07-08 | 2015-10-21 | 合肥热电集团有限公司 | Heat energy meter pressure loss measurement device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105021262B (en) | The adjustable gas flow scaling method of temperature, pressure | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN201364194Y (en) | Liquid flow test device | |
| CN105651351B (en) | A kind of burette type gas flow surveying instrument and method based on weighing principle | |
| CN2802481Y (en) | Integral thermal meter testing device | |
| CN202210005U (en) | Heat energy meter flow full-automatic detection device | |
| CN1221787C (en) | Separated metering method and system for central air conditioner | |
| CN102305676B (en) | Automatic calibrating apparatus on flow of heat energy meter | |
| CN2872061Y (en) | Liquid-phase leakage detector | |
| CN2516956Y (en) | Testing device for heat meter | |
| CN1529139A (en) | Automatic calibrating system for heat meter | |
| CN206741012U (en) | One kind is based on quality formula rainfall gauge automatic calibrator | |
| CN216646552U (en) | Liquid flow rate metering device | |
| CN209014432U (en) | A kind of compensation ventilation rate master bar calibrating installation | |
| CN1179536A (en) | Method for setting-up pressure flowmeter and apparatus thereof | |
| CN209485504U (en) | A kind of self-adaption constant liquid level constant-current stabilizer | |
| CN113720424A (en) | Serial-parallel coupling type multi-station water meter calibrating device and method | |
| CN100338450C (en) | Thermal-energy meter checking device | |
| CN105004449A (en) | Self-healing precision correction ultrasonic heat metering device | |
| CN203720688U (en) | Pressure and flow automatic regulation and control device for liquid pipeline | |
| CN111609902A (en) | Production testing device and method for non-full pipe flowmeter | |
| CN214748328U (en) | Meter calibrating device and system | |
| CN217763071U (en) | Multi-channel voltage and current stabilizing system for instrument | |
| CN216483393U (en) | Trinity automatic water gauge detects platform | |
| CN218765525U (en) | Liquid flowmeter calibration detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |