CN203798391U - Gas metering skid with real flow comparison function - Google Patents
Gas metering skid with real flow comparison function Download PDFInfo
- Publication number
- CN203798391U CN203798391U CN201420004094.5U CN201420004094U CN203798391U CN 203798391 U CN203798391 U CN 203798391U CN 201420004094 U CN201420004094 U CN 201420004094U CN 203798391 U CN203798391 U CN 203798391U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- ball valve
- gas
- spare duct
- gas metering
- 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
Abstract
The utility model discloses a gas metering skid with the real flow comparison function. The gas metering skid comprises a skid-mounted base and a pressure pipeline, wherein the pressure pipeline is arranged on the skid-mounted base and provided with an inlet gas manifold and an outlet gas manifold. The pressure pipeline comprises a gas supply pipeline, a standby pipeline, a flow comparison pipeline provided with a first ball valve, and a second ball valve. The gas supply pipeline and the standby pipeline are arranged between the inlet gas manifold and the outlet gas manifold side by side and connected to the inlet gas manifold and the outlet gas manifold respectively. The gas supply pipeline and the standby pipeline are respectively provided with a rectifier and a flowmeter. One end of the flow comparison pipeline is connected with the gas supply pipeline, and the other end of the flow comparison pipeline is connected with the standby pipeline, so that the gas supply pipeline and the standby pipeline are connected in series. The second ball valve is arranged on the portion, between the position where the standby pipeline and the flow comparison pipeline are connected and the inlet gas manifold, of the standby pipeline. According to the gas metering skid, flow can be compared and calibrated online without detaching the flowmeters, the gas metering skid is easy and convenient to operate, shutdown for maintenance is not needed, and personal safety can be guaranteed.
Description
Technical field
The utility model relates to a kind of gas metering sledge, relates in particular to a kind of gas metering sledge with real stream comparison function.
Background technology
At present, both at home and abroad the demand of this eco-friendly power source of rock gas is all grown with each passing day, the development of China's natural gas industry is also very swift and violent, built many large-scale gas pipeline engineerings, but still can not meet the needs of China's economic development, build the State Project engineerings such as " transfering natural gas from the west to the east three lines " and " Russia's gas south is sent " engineering.Gas metering sledge is measuring apparatus important in Long-distance Transmission Pipeline, is also the measuring apparatus of the natural gas transport industry accreditation of world, and along with the development of Gas Industry, gas metering sledge will have larger market outlook.
Conventionally, when by gas pipe line, user provides combustion gas downstream, need to be by the flow of combustion gas and drift limit in specified fluctuation range, and need to give accurate recording to the instantaneous delivery of downstream user and integrated flow information, this just need to guarantee the accuracy of the flowmeter in gas metering sledge.At present, be that flowmeter is disassembled to the calibration of flowmeter, take professional metering validation activity and carry out cycle censorship and realize magnitude tracing, guarantee the accuracy of measuring of flowmeter.But be subject to the impact of combustion gas explosion hazard, the dismounting of flowmeter is had to certain danger.In addition, when gas metering sledge is safeguarded, need to stop production and safeguard, this causes inconvenience to downstream user.
Utility model content
In view of the above-mentioned problems in the prior art, technical problem to be solved in the utility model is to provide a kind of gas metering sledge with real stream comparison function, it can be in the situation that flowmeter not be dismantled, realize comparison and demarcation at linear flow rate, and do not need to stop production and safeguard, can ensure personal safety.
In order to address the above problem, the gas metering sledge with real stream comparison function of the present utility model, comprise sledge dress base and the pressure piping being arranged on described sledge dress base, described pressure piping has import remittance tracheae and outlet remittance tracheae, and described pressure piping comprises:
Supply air line, described supply air line is provided with the first rectifier and first flow meter, and described the first rectifier is arranged at the upstream position of described first flow meter, one end of described supply air line is connected to described import remittance tracheae, and the other end is connected to described outlet remittance tracheae;
Spare duct, described spare duct and described supply air line are set up in parallel, one end of described spare duct is connected to described import remittance tracheae, the other end is connected to described outlet remittance tracheae, described spare duct is provided with the second rectifier and the second flowmeter, and described the second rectifier is arranged at the upstream position of described the second flowmeter;
Throughput ratio is to pipeline, described throughput ratio is connected on the described supply air line between described first flow meter and described outlet remittance tracheae one end of pipeline, the other end is connected on the described spare duct between described the second rectifier and described import remittance tracheae, and described throughput ratio is to being provided with the first ball valve on pipeline; And
The second ball valve, described the second ball valve is arranged on the described spare duct that position that described spare duct is connected pipeline with described throughput ratio and described import converge between tracheae.
In a preferred embodiment of the present utility model, described the first ball valve is arranged on the position that contiguous described throughput ratio is connected with described spare duct pipeline.
In a preferred embodiment of the present utility model, described flow is counted ultrasonic flow meter.
Compared with prior art, the beneficial effect of the gas metering sledge with real stream comparison function of the present utility model is: can, in the situation that flowmeter is not dismantled, realize comparison and demarcation at linear flow rate, and simple to operation, and do not need to stop production and safeguard, can ensure personal safety.
Brief description of the drawings
Fig. 1 is the structural representation of the gas metering sledge with real stream comparison function of the present utility model.
Description of reference numerals
1 the 4th ball valve 2 blow-down pipe ball valves
3 choke stop evacuation valve 4 blow-down pipes
5 tensimeter 6 throughput ratios are to pipe
7 the 3rd ball valve 8 balance pipes
9 balance pipe stop valve 10 second ball valves
11 first ball valve 12 first rectifiers
13 first flow meter 14 the 5th ball valves
20 supply air line 21 spare ducts
22 pressure unit 23 imports remittance tracheaes
24 outlet remittance tracheae 32 second rectifiers
35 second flowmeter 36 skid bases
Embodiment
Describe the gas metering sledge with real stream comparison function of the present utility model in detail below in conjunction with accompanying drawing.It will be appreciated by those skilled in the art that embodiment described below is only to exemplary illustration of the present utility model, but not for it being made to any restriction.
Fig. 1 shows the structural representation of the gas metering sledge with real stream comparison function of the present utility model.As shown in Figure 1, have the gas metering sledge of stream comparison function in fact and comprise sledge dress base 36 and be arranged on pressure piping on sledge dress base and that have import remittance tracheae 23 and outlet remittance tracheae 24, this pressure piping comprises that supply air line 20, spare duct 21, throughput ratio are to pipeline 6, the first ball valve 11 and the second ball valve 10.Wherein, supply air line 20 is provided with the first rectifier 12 and first flow meter 13, and the first rectifier 12 is arranged at the upstream position of first flow meter 13, and one end of supply air line 20 is connected to import and converges tracheae 23, and the other end is connected to outlet and converges tracheae 24.Spare duct 21 is set up in parallel with supply air line 20, its one end is connected to import remittance tracheae 23, the other end is connected to outlet remittance tracheae 24, and spare duct 21 is provided with the second rectifier 32 and the second flowmeter 35, and the second rectifier 32 is arranged at the upstream position of the second flow 35.Throughput ratio is to being provided with the first ball valve 11 on pipeline 6, throughput ratio is connected on the supply air line 20 between first flow meter 13 and outlet remittance tracheae 24 one end of pipeline 6, and the other end is connected on the spare duct 21 between the second rectifier 32 and import remittance tracheae 23.The second ball valve 10 is arranged on spare duct 21, and between the position with throughput ratio, pipeline 6 being connected at spare duct 21 and import remittance tracheae 23, i.e. position shown in Fig. 1.
Wherein, first flow meter 13 and the second flowmeter 35 are for metering gas service condition, and the first rectifier 12 and the second rectifier 32 are for current stabilization.Be provided with the throughput ratio of the first ball valve 11 to pipeline 6, for supply air line 20 and spare duct 21 being cascaded in the time comparing, also together with first flow meter 13 being connected with the second flowmeter 35, and then be cascaded with the calibration scale (not shown) being arranged on the upstream of import remittance tracheae 23 or the downstream pipeline of outlet remittance tracheae 24, like this by with the precision of comparing to adjust first flow meter 13 and the second flowmeter 35 of calibration scale (not shown), realize online real stream comparison.The first ball valve 11, be arranged on throughput ratio on pipeline 6, and be arranged on the position that contiguous throughput ratio is connected with spare duct 21 pipeline 6, like this, when supply air line 20 carries out air feed, throughput ratio, to storing up full combustion gas in pipeline 6 before combustion gas enters spare duct 21, rises and falls little with the gas medium flow velocity that ensures to enter in spare duct 21, be convenient to carry out throughput ratio pair, improve comparison accuracy.
Describe operating process of the present utility model below in detail.As shown in Figure 1; have when the gas metering sledge of stream comparison function is gone into operation for the first time in fact; first open the stop valve 9 on balance pipe 8; slowly open again the 3rd ball valve 7; check the reading of tensimeter 5, steady to ensure the pressure in supply air line 20, until the pressure differential balance of the 3rd ball valve 7 both sides; can open the 3rd ball valve 7 completely, can effectively protect like this first flow meter 13 to avoid the impact of fuel gas flow.Can close subsequently the stop valve 9 on balance pipe 8, and open the 4th ball valve 1, can realize air feed downstream.In use, the 3rd ball valve 7 should be all the time in full-gear, and ensures that the second ball valve 10 and the 5th ball valve 14 are in closed condition simultaneously.
Supply under gaseity normal, the supply air line 20 of combustion gas by the gas metering sledge with real stream comparison function of the present utility model downstream user carries out air feed, and spare duct 21 is in dead status, the second ball valve 10, the 5th ball valve 14 and the first ball valve 11 are in closed condition.In the air feed process of supply air line 20, when the force value showing when tensimeter 5 exceedes the top pressure value that the gas metering sledge with real stream comparison function of the present utility model allows, pressure transmission device 22 can be communicated to pulpit (not shown) by pressure signal, and pulpit (not shown) is sent alerting signal simultaneously.At this moment, need to adopt manual emptying manipulation.First open the choke stop evacuation valve 3 on blow-down pipe 4, more slowly open blow-down pipe ball valve 2, until after the recovery normally of the pressure of supply air line 20, need close choke stop evacuation valve 3, then close blow-down pipe ball valve 2.Emptying manipulation can ensure that the gas metering sledge with real stream comparison function normally moves.
In the time need to safeguarding the gas metering sledge with real stream comparison function of the present utility model, first close the 3rd ball valve 7, after treating that combustion gas in supply air line 20 does not have, close the 4th ball valve 1, then open the second ball valve 10 and the 5th ball valve 14.Utilize spare duct 21 to carry out downstream air feed, to ensure the uninterrupted of air feed.
In the time carrying out the comparison of reality stream, need close the 4th ball valve 1, open the first ball valve 11 and the 5th ball valve 14, ensure that the second ball valve 10 is in closed condition simultaneously, so that the combustion gas in supply air line 20 enters spare duct 21 by throughput ratio to managing 6, and then together with first flow meter 13, the second flowmeter 35 and calibration scale (not shown) are connected.The reading of observation first flow meter 13, the reading of the second flowmeter 35 are compared with the reading of calibration scale (not shown) respectively.When the reading of the reading of first flow meter 13, the second flowmeter 35 respectively with the read-around ratio of calibration scale (not shown) to after relative error in 0.5%, illustrate that the precision of first flow meter 13 and the second flowmeter 35 is normal, can continue to use.When the read-around ratio of the reading of first flow meter 13 and the reading of the second flowmeter 35 and calibration scale (not shown) to after relative error while being greater than 0.5%, illustrate that the precision of first flow meter 13 and the second flowmeter 35 is inadequate, should keep in repair or replace.Wherein, in the present embodiment, first flow meter 13 and the second flowmeter 35 are ultrasonic flow meter, and this is the rate-of flow that both can measure Large Diameter Pipeline due to ultrasonic flow meter, also can be for being difficult for the measurement of the medium that contacts and observe.In addition, the accuracy of measurement of ultrasonic flow meter is very high, is subject to hardly the interference of the various parameters of measured medium, for example: the medium that combustion gas is explosion hazard.
Find through inventor's great many of experiments, flowmeter accuracy in the gas metering sledge with real stream comparison function of the present utility model is better than ± and 0.5%, and the gas metering sledge with real stream comparison function of the present utility model by with its upstream and downstream pipeline in other metering sledges compare after, find precision of the present utility model be better than ± 1%.
Certainly; the above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (3)
1. have a gas metering sledge for stream comparison function in fact, comprise sledge dress base and the pressure piping being arranged on described sledge dress base, described pressure piping has import remittance tracheae and outlet remittance tracheae, it is characterized in that, described pressure piping comprises:
Supply air line, described supply air line is provided with the first rectifier and first flow meter, and described the first rectifier is arranged at the upstream position of described first flow meter, one end of described supply air line is connected to described import remittance tracheae, and the other end is connected to described outlet remittance tracheae;
Spare duct, described spare duct and described supply air line are set up in parallel, one end of described spare duct is connected to described import remittance tracheae, the other end is connected to described outlet remittance tracheae, described spare duct is provided with the second rectifier and the second flowmeter, and described the second rectifier is arranged at the upstream position of described the second flowmeter;
Throughput ratio is to pipeline, described throughput ratio is connected on the described supply air line between described first flow meter and described outlet remittance tracheae one end of pipeline, the other end is connected on the described spare duct between described the second rectifier and described import remittance tracheae, and described throughput ratio is to being provided with the first ball valve on pipeline; And
The second ball valve, described the second ball valve is arranged on the described spare duct that position that described spare duct is connected pipeline with described throughput ratio and described import converge between tracheae.
2. the gas metering sledge with real stream comparison function according to claim 1, is characterized in that, described the first ball valve is arranged on the position that contiguous described throughput ratio is connected with described spare duct pipeline.
3. the gas metering sledge with real stream comparison function according to claim 1, is characterized in that, described flow is counted ultrasonic flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004094.5U CN203798391U (en) | 2014-01-03 | 2014-01-03 | Gas metering skid with real flow comparison function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004094.5U CN203798391U (en) | 2014-01-03 | 2014-01-03 | Gas metering skid with real flow comparison function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798391U true CN203798391U (en) | 2014-08-27 |
Family
ID=51380596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004094.5U Expired - Fee Related CN203798391U (en) | 2014-01-03 | 2014-01-03 | Gas metering skid with real flow comparison function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11136873B2 (en) | 2017-04-11 | 2021-10-05 | Kustom Koncepts, Inc. | Skid mounted oil well production processing system |
-
2014
- 2014-01-03 CN CN201420004094.5U patent/CN203798391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11136873B2 (en) | 2017-04-11 | 2021-10-05 | Kustom Koncepts, Inc. | Skid mounted oil well production processing system |
| US11428090B2 (en) | 2017-04-11 | 2022-08-30 | Kustom Koncepts, Inc. | Skid mounted oil well production processing system |
| US11549350B2 (en) | 2017-04-11 | 2023-01-10 | Kustom Koncepts, Inc. | Skid mounted oil well production processing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101419088B (en) | Calibration device for sonic nozzle gas flowmeter by positive-pressure method and application method | |
| JP2013234658A5 (en) | ||
| CN202075022U (en) | On-line real-flow verification device for small natural gas flow meter | |
| CN203881553U (en) | Combustion gas pressure regulation test system | |
| MY165433A (en) | Nuclear magnetic flowmeter | |
| CN103868559A (en) | Parallel installation and segmental measurement flow measurement method with large measurement range ratio and device thereof | |
| CN103438931B (en) | Wet steam flow mass dryness fraction integrated measurer and measuring method | |
| CN202869562U (en) | Machining-type Venturi tube | |
| CN203798391U (en) | Gas metering skid with real flow comparison function | |
| CN102230817A (en) | Recycled two-phase flow flowmeter calibrating platform of wet steam | |
| CN205538578U (en) | High -pressure gas filters performance detection device of filter core | |
| CN207908020U (en) | A kind of natural gas big flow reality stream calibrating secondary standard device | |
| CN202092840U (en) | Leak detection system of gas flow standard device | |
| CN204027618U (en) | A kind of flow measurement device that is installed in parallel areal survey wide range ratio | |
| CN205261210U (en) | LNG loading sledge integrated device | |
| CN203771036U (en) | Skid-mounted device for gas station | |
| CN203598781U (en) | Centralized preparation and supply system for mixed gas | |
| CN103411790B (en) | Compressed air is as the method for autoamtic compressed gas filling machine detection medium | |
| CN207095660U (en) | A kind of flowmeter on-line testing system | |
| CN205480201U (en) | Liquefied natural gas double - circuit precise measurement system | |
| CN202599631U (en) | Gas leakage detection system | |
| CN209213479U (en) | A kind of natural gas line conveying gas leak detection device | |
| CN209040823U (en) | The measuring equipment of equal flows branch path metering oil gas water well yield | |
| CN204201469U (en) | A kind of poisonous and harmful cryogenic liquide tapping equipment | |
| CN202024808U (en) | Recovery type wet steam two-phase flow flowmeter calibration table |
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 |
Granted publication date: 20140827 Termination date: 20170103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |