CN208579794U - A kind of square needle tube type gas-metering device - Google Patents
A kind of square needle tube type gas-metering device Download PDFInfo
- Publication number
- CN208579794U CN208579794U CN201821333366.0U CN201821333366U CN208579794U CN 208579794 U CN208579794 U CN 208579794U CN 201821333366 U CN201821333366 U CN 201821333366U CN 208579794 U CN208579794 U CN 208579794U
- Authority
- CN
- China
- Prior art keywords
- pressure
- flow
- unit
- pipe
- temperature
- 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.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a kind of square needle tube type gas-metering device, including display output unit and the pressure unit, flow cell and the temperature unit that are arranged on pipeline；Pressure unit, flow cell and temperature unit are from upstream to downstream sequence according to the flow direction of medium in pipeline and are arranged；Pressure unit includes sequentially connected from below to up and pipeline connection pressure guiding pipe, shut-off valve, pressure transmitter mounting base and pressure transmitter；The flow cell includes the square needle tubing flowmeter that the flow mounting base of flange is arranged and is connect by flange with flow mounting base；The temperature unit include from top to bottom sequentially connected temperature sensor, connecting tube and with pipeline welding temperature mounting base；Display output unit is flow computer or flow integrator；Pressure unit, flow cell, temperature unit are connect by DOL Data Output Line with display output unit.
Description
Technical field
The utility model relates to a kind of square needle tube type gas-metering devices, belong to gas dosing technical field.
Background technique
Gas medium huge number, physical property are different, and site technique parameter is various, changeable, such as with seasonal temperature pressure, flow
Often the steam changed, natural gas, coal gas that component changes at any time etc., heavy caliber pipeline also need the cost for considering measuring instrumentss
And whether it is quickly and expediently installed.The characteristics of for the above gas medium, meter manufacturer develop multiple gases flowmeter and gas
Body metering device adapts to the metering requirements of different occasions, medium, but its scope of application has some limitations.Such as speed
Mainstream product vortex-shedding meter, the vortex precession flowmeter of degree formula gas flowmeter are not suitable for the survey of heavy caliber gas flow
Amount；The accuracies of measurement such as throttling set standard orifice plate, nozzle, Venturi tube are not able to satisfy measuring requirement, wherein throttling set pressure
Power loss is larger, and energy-saving effect is poor, while instrument is bulky, and cost is high；Even speed tube gas flow measurement medium is necessary
Cleaning also needs to consider detection bar intensity and vibration frequency when pipeline bore is larger, not can produce resonance breakage phenomenon, in order to avoid occur
Safety accident.The real-time compensation that most of instrument can not achieve temperature, pressure simultaneously calculates, when gas medium technological parameter is serious
When deviateing design parameter, the degradation of accuracy of measurement is necessarily caused.To realize that temperature and pressure compensation calculates, it usually needs measuring
Pressure, temperature measuring instrument are added on pipeline, pressure, temperature, flow signal are transferred to control system and carry out temperature pressure compensation
It calculates, obtains more accurately flow measurements, heavy workload, cumbersome, user cost substantially increases.As society is for gas
Metering, the control of the energy are increasingly paid attention to and strictly, can while heavy caliber can be suitable for by being badly in need of one kind in the market, and cost is closed
Reason, meets that the accuracy of measuring is high, Applicable media is in extensive range, real time temperature pressure compensation calculates, the gas of integrated design
Body metering device can store various measurement data for a long time, and real-time calling facilitates user to carry out data analysis, improve technique, mention
High efficiency reduces the work such as cost.
Utility model content
The purpose of the utility model is to provide a kind of gas-metering device more particularly to a kind of pair of accuracy of measuring require compared with
Height, energy-saving effect is good, long service life, and output signal diversification, data can store calling, integrated design for a long time
Square needle tube type gas-metering device.
To achieve the goals above, the technical solution adopted in the utility model is:
A kind of square needle tube type gas-metering device, it is characterised in that: including display output unit and be arranged on pipeline
Pressure unit, flow cell and temperature unit；Pressure unit, flow cell and temperature unit according to medium in pipeline flowing side
It is arranged to downstream sequence is from upstream to；Pressure unit includes sequentially connected from below to up and pipeline connection pressure guiding pipe, cut-off
Valve, pressure transmitter mounting base and pressure transmitter；The flow cell includes that the flow mounting base of flange is arranged and passes through method
The square needle tubing flowmeter that orchid connect with flow mounting base；Square needle tubing flowmeter include square needle tubing flow sensor, two pressure pipes,
Differential pressure transmitter；Pressure pipe one end connects differential pressure transmitter by valve group, connects at the top of the other end and matrix flow sensor tube
It connects；Square needle tubing flow sensor passes through the inside that pipeline is arranged in flow mounting base；The temperature unit include from top to bottom according to
Temperature sensor, connecting tube and the temperature mounting base with pipeline welding of secondary connection；Display output unit be flow computer or
Flow integrator；Pressure unit, flow cell, temperature unit are connect by DOL Data Output Line with display output unit.
Technical solutions of the utility model further improvement lies in that: square needle tubing flow sensor include wear high pressure connecting pipe
With the casing of low pressure connecting pipe；Low pressure connecting pipe and high pressure connecting pipe are connected to pressure pipe respectively, and the bottom of casing is provided with inspection
Test tube, the bottom of detection pipe are connected with probe；High pressure pressure pipe and low pressure pressure pipe pass through detection pipe and are connected to probe, and popping one's head in is
V-structure.
Technical solutions of the utility model further improvement lies in that: the inside of pipeline is arranged in across mounting base for probe.
Technical solutions of the utility model further improvement lies in that: between casing and pressure pipe be arranged pilot block, pilot block
Inside be arranged two circulation ducts, two circulation ducts are respectively by pressure pipe and high pressure connecting pipe, connecting pipe and low pressure pilot
Pipe connection.
Technical solutions of the utility model further improvement lies in that: temperature sensor be three-wire system platinum resistance thermometer sensor, or platinum thermoelectricity
Hinder temperature transmitter.
By adopting the above-described technical solution, the technical effect that the utility model obtains has:
The flow cell of the utility model uses square needle tubing flowmeter, and square needle tubing flowmeter is popped one's head in using V-type, gets rid of easily
The drawbacks of blocking, and impurity particle can be prevented to enter probe and pressure guiding pipe.
The utility model display output unit, not only can be live aobvious using flow integrator or flow computer is mostly used
Differential pressure, temperature, the pressure for showing that pressure unit, flow cell, temperature unit transmit are equivalent, and flow computer can lead to
It crosses communication output interface (general to select RS-485 or RS-232 digital communication) to store data, facilitates user according to long-term
Historical data it is for statistical analysis, improve the work such as technique, realize energy statistics, control, improve production efficiency, save at
This.
The temperature unit of the utility model is welded on pipeline, ensure that the reliability of the accurate of measurement and welding, will not
It leaks.
The integrated Integrated design of the utility model square needle tubing gas-metering device, i.e. pressure unit, flow cell, temperature
Unit, pipeline are assembled integrally, and integration degree is high, compact-sized, meet demand.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the utility model pressure unit；
Fig. 3 is the schematic diagram of the utility model flow cell；
Fig. 4 is the schematic diagram of the utility model temperature unit；
Fig. 5 is the utility model matrix flow sensor tube schematic diagram；
Wherein, 1, display output unit, 2, pressure unit, 2-1, pressure transmitter, 2-2, pressure transmitter mounting base, 2-
3, shut-off valve, 2-4, pressure guiding pipe, 3, flow cell, 3-1, differential pressure transmitter, 3-2, valve group, 3-3, pressure pipe, 3-4, square needle tubing
Flow sensor, 3-4-1, pilot block, 3-4-2, casing, 3-4-3, detection pipe, 3-4-4, high pressure connecting pipe, 3-4-5, low pressure are led
Pressure pipe, 3-4-6, probe, 3-5, flow mounting base, 4, temperature unit, 4-1, temperature sensor, 4-2, temperature mounting base, 5, pipe
Road.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the utility model:
The utility model discloses a kind of gas-metering device, more particularly to a kind of applicable large-diameter pipe road on site, gas
Body medium temperature, pressure transient, the accuracy of measuring is more demanding, and energy-saving effect is good, long service life, output signal multiplicity
Change, data can store the square needle tube type gas-metering device of calling, integrated design for a long time.Here is specifically to implement
Example:
A kind of square needle tube type gas-metering device, including display output unit 1 and be arranged on pipeline pressure unit 2,
Flow cell 3 and temperature unit 4, as shown in figure 1, figure 2, figure 3, figure 4 and figure 5.Display output unit 1 is flow computer or stream
Integrating instrument is measured, pressure unit, flow cell 3, temperature unit 4 are connect by DOL Data Output Line with display output unit 1, such as Fig. 1
It is shown.Display output unit 1 receive the pressure signal of pressure unit 2, the flow signal of flow cell 3, temperature unit 4 temperature
Signal carries out the real-time pressure compensation calculation of medium, using the flow rate calculation flow-compensated Y-factor method Y of formula combination multistage broken line into
Row accurately calculates, and obtains accurate instantaneous flow measured value, can scene display instantaneous flow, integrated flux, differential pressure, temperature, pressure
Power is equivalent.
It is suitable that pressure unit 2, flow cell 3 and temperature unit 4 according to the flow direction of medium in pipeline are from upstream to downstream
Sequence setting；Pressure unit 2 is mounted on the pipeline of 3 upstream of flow cell, is not less than 100mm apart from flow cell 3, to eliminate pressure
Influence of the medium change of flow state to flow measurement accuracy caused by power unit 2 is installed.Pressure unit 2 includes from below to up successively
Pressure guiding pipe 2-4, shut-off valve 2-3, pressure transmitter mounting base 2-2 and pressure transmitter 2-1 are connected, as shown in Figure 2；Pressure guiding pipe 2-
4 are welded on pipeline 5 and are connected to pipeline 5.
Flow cell 3 includes the square that the flow mounting base 3-5 of flange is arranged and is connect by flange with flow mounting base 3-5
Needle tubing flowmeter；Square needle tubing flowmeter includes square needle tubing flow sensor 3-4, two pressure pipe 3-3, differential pressure transmitter 3-1, such as
Shown in Fig. 3；The one end pressure pipe 3-3 passes through valve group 3-2 connection differential pressure transmitter 3-1, the other end and matrix flow sensor tube 3-4
Top connection；Square needle tubing flow sensor 3-4 passes through the inside that pipeline 5 is arranged in flow mounting base 3-5；Square needle tubing flow passes
Sensor 3-4, arrow is oriented to the flow direction of medium in figure as shown in Figure 5, including wears high pressure connecting pipe 3-4-4 and low pressure
The casing 3-4-2 of connecting pipe 3-4-5；Low pressure connecting pipe 3-4-5 and high pressure connecting pipe 3-4-4 are connected to pressure pipe 3-3 respectively, set
The bottom of pipe 3-4-2 is provided with detection pipe 3-4-3, and the bottom of detection pipe 3-4-3 is connected with probe 3-4-6；High pressure pressure pipe 3-
4-4 and low pressure pressure pipe 3-4-5 passes through detection pipe 3-4-3 and is connected to probe 3-4-6, and probe 3-4-6 is V-structure.Pop one's head in 3-
4-6 passes through the inside that pipeline 5 is arranged in flow mounting base 3-5.Pilot block 3-4- is set between casing 3-4-2 and pressure pipe 3-3
Two circulation ducts are arranged in the inside of 1, pilot block 3-4-1, and two circulation ducts respectively lead high pressure connecting pipe 3-4-4, low pressure
Pressure pipe 3-4-5 is connected to pressure pipe 3-3.
Temperature unit 4 is mounted on the pipeline 5 in 3 downstream of flow cell, is generally required not apart from square needle tubing flow sensor
Lower than 300mm, to eliminate influence of the medium change of flow state to flow measurement accuracy caused by temperature unit 4 is installed.Temperature list
Member 4 includes sequentially connected temperature sensor 4-1 from top to bottom, connecting tube and the temperature mounting base 4-2 welded with pipeline, such as schemes
Shown in 4；Temperature sensor 4-1 is three-wire system platinum resistance thermometer sensor, or platinum resistance thermometer sensor, temperature transmitter.
The flow cell of the utility model uses square needle tubing flowmeter, and square needle tubing flowmeter is popped one's head in using V-type, gets rid of easily
The drawbacks of blocking, and impurity particle can be prevented to enter probe and pressure guiding pipe.
The utility model display output unit, not only can be live aobvious using flow integrator or flow computer is mostly used
Differential pressure, temperature, the pressure for showing that pressure unit, flow cell, temperature unit transmit are equivalent, and flow computer can lead to
It crosses communication output interface (general to select RS-485 or RS-232 digital communication) to store data, facilitates user according to long-term
Historical data it is for statistical analysis, improve the work such as technique, realize energy statistics, control, improve production efficiency, save at
This.
The temperature unit of the utility model is welded on pipeline, ensure that the reliability of the accurate of measurement and welding, will not
It leaks.
The integrated Integrated design of the utility model square needle tubing gas-metering device, i.e. pressure unit, flow cell, temperature
Unit, pipeline are assembled integrally, display output unit according to user demand can integrated design or fissionization design, integrated journey
Degree is high, compact-sized, meets demand.
Although the utility model is illustrated using above-mentioned preferred embodiment, it is not intended to limit the utility model
Protection scope, anyone skilled in the art are within the spirit and scope for not departing from the utility model, relatively above-mentioned implementation
Example carry out it is various variation with modification still fall within the range that the utility model is protected, therefore, the protection scope of the utility model with
Subject to claims are defined.
Claims (5)
1. a kind of square needle tube type gas-metering device, it is characterised in that: including display output unit and the pressure being arranged on pipeline
Power unit, flow cell and temperature unit；Pressure unit, flow cell and temperature unit according to medium in pipeline flow direction
Downstream sequence is from upstream to be arranged；Pressure unit include from below to up the sequentially connected pressure guiding pipe with pipeline connection, shut-off valve,
Pressure transmitter mounting base and pressure transmitter；The flow cell include be arranged flange flow mounting base and by flange with
The square needle tubing flowmeter of flow mounting base connection；Square needle tubing flowmeter includes square needle tubing flow sensor, two pressure pipes, differential pressures
Transmitter；Pressure pipe one end connects differential pressure transmitter by valve group, and the other end is connect with the top of matrix flow sensor tube；Square
Needle tubing flow sensor passes through the inside that pipeline is arranged in flow mounting base；The temperature unit includes being sequentially connected from top to bottom
Temperature sensor, connecting tube and with pipeline welding temperature mounting base；Display output unit is flow computer or flow product
Calculate instrument；Pressure unit, flow cell, temperature unit are connect by DOL Data Output Line with display output unit.
2. square needle tube type gas-metering device according to claim 1, it is characterised in that: square needle tubing flow sensor includes
Wear the casing of high pressure connecting pipe and low pressure connecting pipe；Low pressure connecting pipe and high pressure connecting pipe are connected to pressure pipe respectively, casing
Bottom be provided with detection pipe, the bottom of detection pipe is connected with probe；High pressure pressure pipe and low pressure pressure pipe pass through detection pipe with
Probe connection, pops one's head in as V-structure.
3. square needle tube type gas-metering device according to claim 2, it is characterised in that: probe exists across mounting base setting
The inside of pipeline.
4. square needle tube type gas-metering device according to claim 2, it is characterised in that: be arranged between casing and pressure pipe
Two circulation ducts are arranged in the inside of pilot block, pilot block, and two circulation ducts are respectively by pressure pipe and high pressure connecting pipe, pilot
Pipe is connected to low pressure connecting pipe.
5. square needle tube type gas-metering device according to any one of claims 1 to 4, it is characterised in that: temperature sensor
For three-wire system platinum resistance thermometer sensor, or platinum resistance thermometer sensor, temperature transmitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333366.0U CN208579794U (en) | 2018-08-18 | 2018-08-18 | A kind of square needle tube type gas-metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821333366.0U CN208579794U (en) | 2018-08-18 | 2018-08-18 | A kind of square needle tube type gas-metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208579794U true CN208579794U (en) | 2019-03-05 |
Family
ID=65512370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821333366.0U Active CN208579794U (en) | 2018-08-18 | 2018-08-18 | A kind of square needle tube type gas-metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208579794U (en) |
-
2018
- 2018-08-18 CN CN201821333366.0U patent/CN208579794U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102393224B (en) | Integrated intelligent flowmeter and measuring method | |
| CN201225920Y (en) | Gas flow standard device combining acoustic speed nozzle method and standard table method | |
| CN101915664B (en) | Digital full functional water nozzle test system | |
| CN202075022U (en) | Online real-flow calibrating device for small natural gas flowmeter | |
| CN104729637A (en) | Turbine flowmeter online calibration system and method | |
| CN201837418U (en) | High-precision wide-range integrated throttle device | |
| CN202281632U (en) | Differential pressure type virtual flowmeter | |
| CN202483554U (en) | Oil well produced-fluid optical fiber measuring system | |
| CN208998853U (en) | A kind of bidirectional traffics measurement differential pressure type balanced adjustment type flowmeter | |
| CN208579794U (en) | A kind of square needle tube type gas-metering device | |
| CN210625764U (en) | Wide-range flow measuring device | |
| CN209102162U (en) | A kind of multiple flow passages ultrasonic wave gas meter | |
| CN210689731U (en) | Wedge type gas metering device | |
| CN104422498A (en) | Natural gas flow metering loop detection section device for reducing natural gas pulsating flow | |
| CN210802568U (en) | Arnuba formula gas metering device | |
| CN116608928A (en) | Calibrating device of piston type small-flow gas flowmeter | |
| CN208579800U (en) | A kind of porous balanced type gas-metering device | |
| CN205843740U (en) | Big orifice coal combustion gas quality flow control system in high precision | |
| CN211651707U (en) | Thermal gas mass flowmeter | |
| CN208383204U (en) | The wing anti-blocking multiple spot air speed pipe elbow meter of one kind and negative pressure measuring device | |
| CN202836646U (en) | Thermal vortex composite flow measuring device with bypass bridge circuit | |
| CN208488130U (en) | A kind of apparatus for measuring air quantity | |
| CN209027599U (en) | A kind of redundant flow measuring device | |
| CN208296911U (en) | A kind of glass tube suspended body flowmeter | |
| CN208780273U (en) | A kind of integration all risk insurance temperature jacket type metal pipe float flow apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |