CN203908609U - Gas flow measuring device - Google Patents
Gas flow measuring device Download PDFInfo
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- CN203908609U CN203908609U CN201420281440.4U CN201420281440U CN203908609U CN 203908609 U CN203908609 U CN 203908609U CN 201420281440 U CN201420281440 U CN 201420281440U CN 203908609 U CN203908609 U CN 203908609U
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- pressure
- gas flow
- differential pressure
- measuring device
- valve
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Abstract
The utility model discloses a gas flow measuring device and belongs to the technical field of flow detection equipment. The gas flow measuring device is used for measuring gas flow in a gas pipeline. According to the technical scheme, the gas flow measuring device is welded to the high pressure side and the low pressure side of a differential pressure type gas flow meter installed in the gas pipeline, the gas flow measuring device is internally provided with a main pressure measuring pipe, a main pressure measuring branch pipe, an auxiliary pressure measuring branch pipe, a main tri-valve set, a main differential pressure measuring device body, an auxiliary tri-valve set, an auxiliary differential pressure measuring device body, an on-site control station, a manual ball valve and an electromagnetic valve, when gas flow in the gas pipeline changes, the on-site control station can switch the measuring device bodies, the different differential pressure measuring device bodies are adopted for gas flow measurement, the measuring precision is greatly improved, the problem that an existing gas flow meter is inaccurate in flow measurement and cannot be used due to the facts that flow range is too large in the industrial production and the gas flow meter works on the small flow condition for a long time is solved, and the gas flow measuring device is an innovation of industrial gas flow measuring equipment.
Description
Technical field
The utility model relates to a kind of gas flow surveying instrument, belongs to flow detection device technical field.
Background technology
In a lot of industrial processes, need to carry out gas flow measurement, gas flow measurement is one of important parameter of explained hereafter.In actual heavy caliber gas flow measurement process, 90% use adopts differential pressure type gas meter per family.Because the range ratio of differential pressure type gas meter is little, while adding design, technique caliber great majority are selected excessive, or the flow parameter of providing to instrument specialty is excessive, or user's use amount is indefinite, sometimes greatly sometimes little, fluctuations in discharge scope is larger, therefore differential pressure type gas meter must be selected larger instrument range, so just likely in the time of low discharge, measure inaccurate, and the practical problems that a lot of users run into is after system puts into operation, gas flow measurement major part is operated under low discharge state, therefore measures inaccurate problem more aobvious outstanding.Current solution is in the thick install pipeline bypass of technique thin pipe, and differential pressure type gas meter and stop valve be installed respectively on extra heavy pipe and tubule, when large flow measurement, open extra heavy pipe road stop valve, close thin pipe stop valve, use extra heavy pipe road measurement mechanism, when Small flowrate measurement, open thin pipe stop valve, close extra heavy pipe road stop valve, use thin pipe measurement mechanism.But this kind of method changed large for process pipe, must stop production, in normal productive process, do not allow and do not have the sufficient repair time to change process pipe, and invest larger, the inaccurate problem that maybe cannot measure of flow cannot solve in the above described manner Large Diameter Pipeline in normal productive process, flow range and change large differential pressure type gas meter and measure low discharge time.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of gas flow surveying instrument, this gas flow surveying instrument can effectively solve Large Diameter Pipeline, wide range, the inaccurate problem of differential pressure type gas meter measurement low discharge, and invest littlely, implement simple, rapidly.
The technical scheme solving the problems of the technologies described above is:
A kind of gas flow surveying instrument, it comprises differential pressure type gas meter, pressure supervisor, pressure primary branch, the secondary arm of pressure, main three valve groups, main differential pressure measuring installation, secondary three valve groups, secondary differential pressure measuring installation, field control station and manual ball valve, solenoid valve, differential pressure type gas meter is arranged in gas pipeline, two pressure supervisors are welded to connect with high-pressure side and the low-pressure side of differential pressure type gas meter respectively, on two pressure supervisors, manual ball valve is installed, one end of two pressure primary branches is connected with two pressure supervisors by tee pipe coupling respectively, the other end of two pressure primary branches connects main three valve groups and main differential pressure measuring installation successively, one end of two secondary arms of pressure is connected with two pressure primary branches by tee pipe coupling respectively, the other end auxiliary connection three valve groups successively of two secondary arms of pressure, secondary differential pressure measuring installation is installed respectively solenoid valve, main differential pressure measuring installation on two pressure primary branches and two secondary arms of pressure, secondary differential pressure measuring installation, solenoid valve is connected with field control station.
Above-mentioned gas flow measurement device, described manual ball valve is many groups, organizes on the pressure supervisor of both sides that manual ball valve is arranged on respectively the tee pipe coupling that pressure supervisor is connected with pressure primary branch more.
Above-mentioned gas flow measurement device is also provided with device for pressure measurement, temperature measuring equipment on gas pipeline, and device for pressure measurement, temperature measuring equipment are connected with field control station respectively.
Above-mentioned gas flow measurement device, described field control station is made up of inputting modular unit, output module, power supply module, cpu controller part, bus mother board module, inputting modular unit, output module, power supply module, cpu controller part, NIM connect by bus mother board module and are arranged on bus mother board module, the NIM of field control station is industrial switch, Ethernet template, fieldbus, and operator station is industrial computer or graphic control panel.
The beneficial effects of the utility model are:
Gas flow surveying instrument of the present utility model is welded to connect high-pressure side and the low-pressure side of the differential pressure type gas meter of installing in gas pipeline, in gas flow surveying instrument, be provided with pressure supervisor, pressure primary branch, the secondary arm of pressure, main three valve groups, main differential pressure measuring installation, secondary three valve groups, secondary differential pressure measuring installation, field control station and manual ball valve, solenoid valve, in the time that the gas flow of gas pipeline changes, field control station can switch measurement mechanism, adopt different differential pressure measuring installations to carry out gas flow measurement, greatly improve measuring accuracy, solve in commercial production flow range excessive, and work long hours under low discharge condition, the inaccurate problem that even flowmeter cannot use of flow metering.
The utility model need not be changed existing process pipe, has not only saved reconstruction expense, and can not affect normally carrying out of production, has ensured the continuity of producing.
The utility model efficiently solves the difficult problem that long-term puzzlement is produced, and is the innovation in industrial gasses flow measurement and method field, and production control process has been played to vital role, has significant economic benefit, has aborning great popularizing value.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, mark is as follows: gas pipeline 1, differential pressure type gas meter 2, pressure supervisor 3, manual ball valve 4, tee pipe coupling 5, pressure primary branch 6, solenoid valve 7, main three valve groups 8, main differential pressure measuring installation 9, the secondary arm 10 of pressure, secondary three valve groups 11, secondary differential pressure measuring installation 12, device for pressure measurement 13, temperature measuring equipment 14, field control station 15, operator station 16.
Embodiment
Gas flow surveying instrument of the present utility model is made up of differential pressure type gas meter 2, pressure supervisor 3, pressure primary branch 6, the secondary arm 10 of pressure, main three valve groups 8, main differential pressure measuring installation 9, secondary three valve groups 11, secondary differential pressure measuring installation 12, device for pressure measurement 13, temperature measuring equipment 14, field control station 15, operator station 16 and manual ball valve 4, solenoid valve 7.
In figure, show, differential pressure type gas meter 2 is arranged in gas pipeline 1, two pressure supervisors 3 are welded to connect with high-pressure side and the low-pressure side of differential pressure type gas meter 2 respectively, on two pressure supervisors 3, be connected respectively by tee pipe coupling 5 with one end of two pressure primary branches 6, three groups of manual ball valves 4 are arranged on respectively on the pressure supervisor 3 of both sides of pressure supervisor 3 tee pipe couplings 5 that are connected with pressure primary branch 6.Three groups of manual ball valves 4 are made up of 6 internal-thread spherical valves, so that rear end equipment I&M.
In figure, show, the other end of two pressure primary branches 6 connects main three valve groups 8 and main differential pressure measuring installation 9 successively, on two pressure primary branches 6, solenoid valve 7 is installed, and main differential pressure measuring installation 9, solenoid valve 7 are connected with field control station 15.Solenoid valve 7 is for controlling whether coming into operation of main differential pressure measuring installation 9, main three valve groups 8 are for the use of the operation to main differential pressure measuring installation 9 maintenances and adjustment, main differential pressure measuring installation 9 is differential pressure transmitter, and pressure primary branch 6 loops are the gas flow when larger for detection of gas pipeline 1 flow.
In figure, show, one end of two secondary arms 10 of pressure is connected with two pressure primary branches 6 by tee pipe coupling 5 respectively, other end auxiliary connection three valve groups 11, the secondary differential pressure measuring installation 12 successively of two secondary arms 10 of pressure, on the secondary arm 10 of two pressures, solenoid valve 7 is installed, secondary differential pressure measuring installation 12, solenoid valve 7 are connected with field control station 15.Solenoid valve 7 is for controlling whether coming into operation of secondary differential pressure measuring installation 12, secondary three valve groups 11 are for the use of the operation to secondary differential pressure measuring installation 12 maintenances and adjustment, secondary differential pressure measuring installation 12 be differential pressure transmitter, the secondary arm of pressure 10 loops for detection of gas pipeline 1 flow compared with hour gas flow.
In figure, show, device for pressure measurement 13, temperature measuring equipment 14 are also installed on gas pipeline 1, and device for pressure measurement 13, temperature measuring equipment 14 are connected with field control station 15 respectively.Temperature and pressure compensation while being used for gas flow measurement.Device for pressure measurement 13 is pressure unit, and temperature measuring equipment 14 is Pt100 thermal resistance.
Field control station 15 is made up of inputting modular unit, output module, power supply module, cpu controller part, bus mother board module, inputting modular unit, output module, power supply module, cpu controller part, NIM connect by bus mother board module and are arranged on bus mother board module, the NIM of field control station 15 is industrial switch, Ethernet template, fieldbus, operator station 16 is industrial computer or graphic control panel, and the NIM of field control station 15 is connected with operator station 16.
The all parts of an embodiment of the present utility model is as follows:
The specification of gas pipeline 1 is welded still pipe φ 2020*10 and welded still pipe φ 2620*10(2 root pipeline);
Differential pressure type gas meter 2 is restriction device, and model is LGH;
Pressure supervisor 3 specification is welded still pipe DN20;
The model of manual ball valve 4 is Q11F-16 type, PN1.6MPa, DN20;
The model of the tee pipe coupling 5 that pressure supervisor 3 installs is YZG5-10-22;
The specification of pressure primary branch 6 is welded still pipe DN15;
The model of the tee pipe coupling 5 that pressure primary branch 6 is installed is YZG5-10-18;
The model of the solenoid valve 7 that pressure primary branch 6 is installed is 224322-446, DN15, the serial solenoid valve of ASCO 238;
Main three valve groups 8 are that main differential pressure measuring installation 9 is subsidiary;
The model of main differential pressure measuring installation 9 is EJA110A type differential pressure transmitter;
The specification of the secondary arm 10 of pressure is welded still pipe DN15;
The model of the solenoid valve 7 that the secondary arm 10 of pressure is installed is 224322-446, DN15, the serial solenoid valve of ASCO 238;
Secondary three valve groups 11 are that secondary differential pressure measuring installation 12 is subsidiary;
The model of secondary differential pressure measuring installation 12 is EJA120A type differential pressure transmitter;
The model of device for pressure measurement 13 is EJA530A type pressure unit, subsidiary pressure tapping and ball valve for manometer;
The model of temperature measuring equipment 14 is WZP-240 type thermal resistance, the straight type connector of subsidiary M27*2;
The formation device of field control station 15 is as follows:
The model of inputting modular unit is 6ES7 331-7KF02-0AB0 and 6ES7 321-1BL00-0AA0; The model of output module is 6ES7 322-1BL00-0AA0; The model of power supply module is 6ES7 307-1KA01-0AA0; The model of cpu controller part is 6ES7 315-2AH14-0AB0; The model of NIM is Moxa EDS-G205,6ES7 343-1EX30-0XE0 and 6ES7 153-1AA03-0XB0; The model of bus mother board module is 6ES7390-1GF30-0AA0;
The model of operator station 16 is for grinding magnificent IPC-610H type.
Claims (4)
1. a gas flow surveying instrument, is characterized in that: it comprises differential pressure type gas meter, pressure supervisor, pressure primary branch, the secondary arm of pressure, main three valve groups, main differential pressure measuring installation, secondary three valve groups, secondary differential pressure measuring installation, field control station and manual ball valve, solenoid valve, differential pressure type gas meter is arranged in gas pipeline, two pressure supervisors are welded to connect with high-pressure side and the low-pressure side of differential pressure type gas meter respectively, on two pressure supervisors, manual ball valve is installed, one end of two pressure primary branches is connected with two pressure supervisors by tee pipe coupling respectively, the other end of two pressure primary branches connects main three valve groups and main differential pressure measuring installation successively, one end of two secondary arms of pressure is connected with two pressure primary branches by tee pipe coupling respectively, the other end auxiliary connection three valve groups successively of two secondary arms of pressure, secondary differential pressure measuring installation is installed respectively solenoid valve, main differential pressure measuring installation on two pressure primary branches and two secondary arms of pressure, secondary differential pressure measuring installation, solenoid valve is connected with field control station.
2. gas flow surveying instrument according to claim 1, is characterized in that: described manual ball valve is many groups, organizes on the pressure supervisor of both sides that manual ball valve is arranged on respectively the tee pipe coupling that pressure supervisor is connected with pressure primary branch more.
3. gas flow surveying instrument according to claim 2, is characterized in that: device for pressure measurement, temperature measuring equipment are also installed on gas pipeline, and device for pressure measurement, temperature measuring equipment are connected with field control station respectively.
4. gas flow surveying instrument according to claim 3, it is characterized in that: described field control station is made up of inputting modular unit, output module, power supply module, cpu controller part, bus mother board module, inputting modular unit, output module, power supply module, cpu controller part, NIM connect by bus mother board module and are arranged on bus mother board module, the NIM of field control station is industrial switch, Ethernet template, fieldbus, and operator station is industrial computer or graphic control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281440.4U CN203908609U (en) | 2014-05-29 | 2014-05-29 | Gas flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420281440.4U CN203908609U (en) | 2014-05-29 | 2014-05-29 | Gas flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908609U true CN203908609U (en) | 2014-10-29 |
Family
ID=51782872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420281440.4U Expired - Fee Related CN203908609U (en) | 2014-05-29 | 2014-05-29 | Gas flow measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983314A (en) * | 2014-05-29 | 2014-08-13 | 河北钢铁股份有限公司承德分公司 | Gas flow measuring device and gas flow control method |
-
2014
- 2014-05-29 CN CN201420281440.4U patent/CN203908609U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983314A (en) * | 2014-05-29 | 2014-08-13 | 河北钢铁股份有限公司承德分公司 | Gas flow measuring device and gas flow control method |
| CN103983314B (en) * | 2014-05-29 | 2017-01-11 | 河北钢铁股份有限公司承德分公司 | Gas flow measuring device and gas flow control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 |