CN205958036U - High pressure and high temperature natural gas elbow meter - Google Patents
High pressure and high temperature natural gas elbow meter Download PDFInfo
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- CN205958036U CN205958036U CN201620790422.8U CN201620790422U CN205958036U CN 205958036 U CN205958036 U CN 205958036U CN 201620790422 U CN201620790422 U CN 201620790422U CN 205958036 U CN205958036 U CN 205958036U
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- pressure
- natural gas
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- current stabilization
- high pressure
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Abstract
The utility model relates to a high pressure and high temperature natural gas elbow meter belongs to flow measurement instrument technical field, simultaneously widenable to other high pressure and high temperature fluid measurement fields. The utility model discloses by before the stationary flow behind straight tube section, return bend sensor, the stationary flow straight tube section weld in proper order or say at the buret that awaits measuring through flange joint, return bend sensor and multistage high -pressure piston compressor export pipeline connection, the oil field is poured into high -pressure natural gas into and is looped through the utility model discloses a data line entering flow totalizer was passed through by temperature measurement subassembly admission transient temperature data, each item data of admission to the straight tube section after instantaneous differential pressure data, stationary flow were enrolled by ressure measurement subassembly admission instantaneous pressure data, return bend sensor by the multivariable changer to the preceding straight tube section of stationary flow, carried out correction computation natural gas transient flow and integrated flow, can realize the purpose including the normal accuracy measurement of the natural gas under impurity, high temperature, high pressure, the pulsation environment.
Description
Technical field
The utility model is related to a kind of high pressure-temperature natural gas elbow meter, belongs to flowrate measuring tool technical field,
Simultaneously widenable to other high pressure-temperature field of fluid measurement.
Background technology
Oil field stratum gas-injection oil-production belongs to the cutting edge technology application of domestic tertiary oil recovery at present, using multistage pressure piston pressure
Contracting machine continuously by natural gas gas compression to high pressure (35Mpa) state, distributes valve group to different oil field stratum gas injections by high pressure
Supplement stratum energy.Contain engine oil impurity, high temperature, high pressure, arteries and veins because natural gas exists after the compression of multistage pressure piston compressor
Dynamic the problems such as, the metering of impact injection natural gas.
Chinese Patent Application No. 201320378389.4 disclosed " a kind of integrated elbow flowmeter ", its technical scheme
It is：Its V-type Bending Tube Sensor is welded or is connected on pipeline to be measured by flange, and it is curved that temperature survey assembly is arranged on V-type
On the straight length of tube sensor downstream, it is connected with multivariable transmitter binding post by holding wire, 2 pressure pipes pass through threeway
Valve is connected with side draw laminate inside and outside V-type Bending Tube Sensor respectively, pressure pipe upper end respectively with the malleation pressure tappings of three valve groups and negative
Pressure pressure tappings are connected, the malleation pressure tappings of multivariable transmitter and negative pressure pressure tappings respectively with the malleation delivery outlet of three valve groups and
Negative pressure delivery outlet is connected.Oil field stratum injection natural gas belongs to high pressure-temperature imperfect gas containing engine oil impurity, according to natural gas
State equation：P1V1/T1=P2V2/T2=R (P：Gas pressure；V：Gas volume；T：Gas absolute temperature；R：Gas constant),
Can show that imperfect gas metric results are stressed, temperature and fluidised form affect.A kind of patent " integrated elbow flowmeter " its skill
In art scheme no operating pressure parameter acquisition, fluidised form current stabilization, total according to calculating, affect imperfect gas measuring accuracy；Positive and negative take
Pressure pipe easily enters impurity blocking using with 90 degree of right angle settings of elbow sidewall, causes normally cannot accurately measure multistage pressure piston pressure
Contracting machine export gas tolerance.
Utility model content
Problem to be solved in the utility model is, for prior art measuring accuracy is low, positive negative pressure pipe is susceptible to plugging
Defect, provides a kind of high pressure-temperature natural gas elbow meter.
The technical solution of the utility model is：This high pressure-temperature natural gas elbow meter is by measuring pipeline section, malleation impulse
Separating pipe, negative pressure impulse separating pipe, pressure measuring assemblies, temperature survey assembly, three valve groups, multivariable transmitter composition, wherein
Measurement pipeline section includes straight length before current stabilization, Bending Tube Sensor, straight length after current stabilization, in the interior outside in Bending Tube Sensor centre position
Respectively there is a pressure body mouth, after straight length before current stabilization, Bending Tube Sensor, current stabilization, straight length is welded successively or is connected to by flange
On pipeline to be measured, after straight length before current stabilization, Bending Tube Sensor, current stabilization, straight length is cylinder type hollow pipe；Pressure measuring assemblies
It is connected and installed on straight length before current stabilization by thread seal, temperature survey assembly is after thread seal is connected and installed in current stabilization
On straight length, Bending Tube Sensor madial wall and lateral wall respectively offer malleation pressure port and negative pressure pressure port, positive/negative-pressure pressure
Hole is respectively welded malleation impulse separating pipe, negative pressure impulse separating pipe, and positive/negative-pressure impulse separating pipe upper end is respectively with three valve groups just
Negative pressure pressure tappings are connected, and the positive/negative-pressure pressure tappings of multivariable transmitter are connected with the positive/negative-pressure delivery outlet of three valve groups respectively.
Flow integrator pass through data wire respectively with the pressure measuring assemblies of elbow meter, temperature survey assembly, multivariable transmitter
Data-out port connect.
Before current stabilization, flow development length is more than or equal to 5 times of pipe under test diameters.
After current stabilization, flow development length is more than or equal to 3 times of pipe diameters to be measured.
Before current stabilization, straight length top connects installation pressure measuring assemblies by thread seal.
After current stabilization, straight length top connects installation temperature survey assembly by thread seal.
Flow integrator introduces pressure measuring assemblies, temperature survey assembly, multivariable transmitter by data wire.
Bending Tube Sensor is provided with malleation impulse separating pipe, negative pressure impulse separating pipe, positive and negative impulse separating pipe and bend loss
Air-flow central axis is in sharp angle α shape installation of leaning forward upwards, between wherein α angle is 30 °～60 °.
Flow integrator according to admission metering natural gas instantaneous pressure, temperature, differential pressure data, by flow integrator
Data models real-time corrected Calculation high pressure-temperature natural gas instantaneous delivery and integrated flow, flow integrator can directly display
Differential pressure, pressure, temperature, instantaneous delivery and integrated flow data.
The beneficial effects of the utility model are by using straight length current stabilization, pressure, temperature survey assembly correction, stream in front and back
Amount integrating instrument total factually when the technological means that calculates, improve measuring accuracy；Using positive and negative impulse separating pipe and bend loss air-flow
Central axis is in acute angle-shaped installation of leaning forward upwards, and impulse carries out Gravity Separation to impurity simultaneously, overcomes and easily enters impurity blocking defect.
Brief description
Fig. 1 is the utility model structural representation.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described further：
As shown in figure 1, high pressure-temperature natural gas elbow meter of the present utility model by measure pipeline section, malleation impulse separate
Pipe 602, negative pressure impulse separating pipe 601, pressure measuring assemblies 4, temperature survey assembly 5, three valve groups 7,8 groups of multivariable transmitter
Become；Wherein measurement pipeline section includes straight length 2 before current stabilization, Bending Tube Sensor 1, straight length 3 after current stabilization, and pressure measuring assemblies 4 pass through
Thread seal is connected and installed on straight length 2 before current stabilization, and temperature survey assembly 5 is straight after thread seal is connected and installed in current stabilization
On pipeline section 3, Bending Tube Sensor 1 madial wall and lateral wall respectively offer malleation pressure port and negative pressure pressure port, positive/negative-pressure pressure
Hole is respectively welded malleation impulse separating pipe 602, negative pressure impulse separating pipe 601, positive/negative-pressure impulse separating pipe upper end respectively with three valves
The positive/negative-pressure pressure tappings of group 7 are connected, and the positive/negative-pressure pressure tappings of multivariable transmitter 8 are exported with the positive/negative-pressure of three valve groups 7 respectively
Mouth is connected, and positive and negative impulse separating pipe and bend loss air-flow central axis are in sharp angle α shape installation of leaning forward upwards；Flow integrator 9
Defeated with the data of the pressure measuring assemblies 4 of elbow meter, temperature survey assembly 5, multivariable transmitter 8 respectively by data wire
Exit port connects.
Before described current stabilization, straight length 2 length need to be more than or equal to 5 times of pipe diameters to be measured, realizes under test gas whole
Stream.
After described current stabilization, straight length 3 length need to be more than or equal to 3 times of pipe diameters to be measured, realizes under test gas whole
Stream.
Between described α angle is 30 °～60 °, realize carrying out Gravity Separation to impurity under test gas impulse simultaneously.
Straight length after straight length before the utility model current stabilization, Bending Tube Sensor, current stabilization is welded successively or by flange even
It is connected on pipeline to be measured, Bending Tube Sensor 1 is connected with multistage pressure piston compressor outlet line, oil field injection high pressure is natural
Before gas passes sequentially through current stabilization of the present utility model, straight length 2 enrolls instantaneous pressure data, Bending Tube Sensor by pressure measuring assemblies 4
1 enrolls instantaneous differential pressure data by multivariable transmitter 8, straight length 3 enrolls transient temperature number by temperature survey assembly 5 after current stabilization
According to each item data of admission enters flow integrator 9 by data wire, is modified calculating natural gas instantaneous delivery and accumulative stream
Amount, can achieve impure, high temperature, high pressure, the purpose that natural gas normally accurately measures under pulsation environment.
Claims (7)
1. a kind of high pressure-temperature natural gas elbow meter, is divided by measurement pipeline section, malleation impulse separating pipe (602), negative pressure impulse
From pipe (601), pressure measuring assemblies (4), temperature survey assembly (5), three valve groups (7), multivariable transmitter (8) composition, it is special
Levying is：Wherein measurement pipeline section includes straight length (2) before current stabilization, Bending Tube Sensor (1), straight length (3) after current stabilization, pressure measxurement group
Part (4) is connected and installed on straight length before current stabilization (2) by thread seal, and temperature survey assembly (5) is connected by thread seal
It is installed on straight length (3) after current stabilization, Bending Tube Sensor (1) madial wall and lateral wall respectively offer malleation pressure port and negative pressure
Pressure port, positive/negative-pressure pressure port is respectively welded malleation impulse separating pipe (602), negative pressure impulse separating pipe (601), positive/negative-pressure impulse
Separating pipe upper end is connected with the positive/negative-pressure pressure tappings of three valve groups (7) respectively, and the positive/negative-pressure pressure tappings of multivariable transmitter (8) divide
It is not connected with the positive/negative-pressure delivery outlet of three valve groups (7)；Flow integrator (9) passes through the data wire pressure with elbow meter respectively
Force measurement component (4), temperature survey assembly (5), the data-out port of multivariable transmitter (8) connect.
2. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Straight tube before described current stabilization
Section (2) length is more than or equal to 5 times of pipe under test diameters.
3. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Straight tube after described current stabilization
Section (3) length is more than or equal to 3 times of pipe diameters to be measured.
4. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Straight tube before described current stabilization
Section (2) top is connected by thread seal installs pressure measuring assemblies (4).
5. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Straight tube after described current stabilization
Section (3) top is connected by thread seal installs temperature survey assembly (5).
6. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Described flow integrator
(9) pressure measuring assemblies (4), temperature survey assembly (5), multivariable transmitter (8) are introduced by data wire.
7. a kind of high pressure-temperature natural gas elbow meter according to claim 1, is characterized in that：Described Bending Tube Sensor
(1) it is provided with malleation impulse separating pipe (602), negative pressure impulse separating pipe (601), using positive and negative impulse separating pipe and bend loss gas
Stream central axis is in sharp angle α shape installation of leaning forward upwards, between wherein α angle is 30 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790422.8U CN205958036U (en) | 2016-07-25 | 2016-07-25 | High pressure and high temperature natural gas elbow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790422.8U CN205958036U (en) | 2016-07-25 | 2016-07-25 | High pressure and high temperature natural gas elbow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958036U true CN205958036U (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790422.8U Active CN205958036U (en) | 2016-07-25 | 2016-07-25 | High pressure and high temperature natural gas elbow meter |
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| Country | Link |
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| CN (1) | CN205958036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166830A (en) * | 2017-05-15 | 2017-09-15 | 珠海格力电器股份有限公司 | Compressor exhaust temperature detects structure and air-conditioning device |
| CN107701221A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of high negative pressure pipeline gas extraction metering device and its application method |
-
2016
- 2016-07-25 CN CN201620790422.8U patent/CN205958036U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166830A (en) * | 2017-05-15 | 2017-09-15 | 珠海格力电器股份有限公司 | Compressor exhaust temperature detects structure and air-conditioning device |
| CN107701221A (en) * | 2017-09-30 | 2018-02-16 | 河南理工大学 | A kind of high negative pressure pipeline gas extraction metering device and its application method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |