CN104654014B - Adjusting method for gas inlet of natural gas - Google Patents
Adjusting method for gas inlet of natural gas Download PDFInfo
- Publication number
- CN104654014B CN104654014B CN201510097634.8A CN201510097634A CN104654014B CN 104654014 B CN104654014 B CN 104654014B CN 201510097634 A CN201510097634 A CN 201510097634A CN 104654014 B CN104654014 B CN 104654014B
- Authority
- CN
- China
- Prior art keywords
- pressure
- pipeline
- natural gas
- pressure limiting
- regulator
- 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
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an adjusting method and an adjusting device. The adjusting device comprises at least one pressure limiting pipeline and at least one pressure regulating pipeline which is connected with the pressure limiting pipeline in parallel; each pressure limiting pipeline comprises an inlet ball valve, an angle type shaft filter and a pressure limiting quick reaction regulator which are sequentially connected; each pressure regulating pipeline comprises an inlet ball valve, an angle type shaft filter and a measured gas pressure regulator which are sequentially connected. According to the device and the method, the pressure at the gas inlet end of the natural gas can be effectively regulated and is enabled to be positioned in a stable state, so that the natural gas can operate at high flow under small pressure difference; in addition, no auxiliary device is needed in the moving process; no relevant electric elements are arranged. The device and the method have the characteristics of simplicity in operation, no need of specially-assigned persons for operation and maintenance avoidance, and have high practical value.
Description
Technical field
The present invention relates to a kind of natural gas air inlet adjustment method and device.
Background technology
At present, the natural gas of gas station is generally city high pressure gas distributing system and carrys out gas, according to season and daily city
City occupies domestic gas custom, the larger situation of pressure oscillation often occurs, therefore needs pressure voltage-regulation voltage-stabilization after natural gas enters the station to pressure
Pressure needed for contracting machine air inlet；General adjusting means is to arrange pressure regulator all the way and bypass, and pressure is passed through when exceeding limit value
Pressure regulator pressure regulation, opens bypass line and is directly entered follow-up process when pressure is less than limit value；The shortcoming of the method is to need people
Work goes operation, or takes the higher automatic switching mode of cost, and time delay therein causes compressor inlet end pressure transient, no
Beneficial to the normal operation of compressor.
The content of the invention
The purpose of the present invention is for above-mentioned problem, there is provided a kind of natural gas air inlet adjustment method and device, solution
The problem that certainly existing natural gas inlet end pressure transient causes compressor to be not normally functioning.
In order to achieve the above object, the present invention provides a kind of natural gas air inlet adjustment method, including：
Compare the size of natural gas admission pressure and setting value；
When natural gas admission pressure is more than setting value, the pressure limiting fast reaction pressure regulator in pressure limiting pipeline is adjusted automatically
It is whole for closed mode, the measuring gas pressure regulator operation in pressure regulation pipeline controls outlet pressure in desired value；
When natural gas admission pressure is less than setting value, the measurement formula pressure regulator valve in pressure regulation pipeline is automatically regulated to be pass
Close or it is micro- open state, the operation of pressure limiting fast reaction pressure regulator in pressure limiting pipeline, by outlet pressure control setting value with
Under.
It is a further object to provide a kind of natural gas air inlet regulating device, including：
At least one pressure limiting pipeline and at least one pressure regulation pipeline being connected in parallel with pressure limiting pipeline；
The pressure limiting pipeline includes inlet ball valve, angle-style shaft type filter and the pressure limiting fast reaction pressure regulation being sequentially connected
Device；The pressure limiting fast reaction pressure regulator is provided with the balance for reacting rapidly to paroxysmal changes in flow rate
Film；
The pressure regulation pipeline includes inlet ball valve, angle-style shaft type filter and the measuring gas pressure regulator being sequentially connected；
The measuring gas pressure regulator be provided with for by pressure feedback to measuring gas pressure regulator pressure pipe.
Natural gas air inlet regulating device also includes at least one side for being used to be used in the case of equipment fault or maintenance
Siphunculus road.
Natural gas air inlet regulating device includes two surge pipes that a pressure limiting pipeline and the pressure limiting pipeline are connected in parallel
Road and the bypass line being connected in parallel with pressure regulation pipeline；Described two pressure regulation pipelines are connected in parallel；The bypass line is by bypassing
Ball valve is constituted.
The natural gas air inlet adjustment method and device of the application be suitable for the larger gas station of gas pipe network pressure oscillation and
The industrial user place strict to gaseous-pressure surge requirements；Can effectively be adjusted using the pressure regulation pressure limiting device and method of the application
The pressure of natural gas inlet end is in steady statue, makes natural gas to realize that big flow is run under small pressure difference, and is moved through
Without the need for auxiliary device in journey, and related electronic components and parts are not provided with, it is simple with operation, it is non-maintaining without the need for special messenger's operation
The characteristics of, have great practical value.
Description of the drawings
Fig. 1 is the process chart of one embodiment of the natural gas air inlet adjustment method of the application.
Wherein, 1, suction flange；2nd, pressure limiting pipeline；3rd, pressure regulation pipeline；4th, bypass line；5th, inlet ball valve；6th, angle-style
Shaft type filter；7th, pressure limiting fast reaction pressure regulator；8th, measuring gas pressure regulator；9th, release valve ball；10th, outlet(discharge) flange；11、
Safety relief valve.
Specific embodiment
To make purpose, technical scheme and the advantage of the application clearer, below in conjunction with drawings and the specific embodiments, to this
Application is described in further detail.
Referring to Fig. 1, Fig. 1 show the process chart of one embodiment of the natural gas air inlet adjustment method of the present invention；
The natural gas air inlet regulating device includes the pressure regulation pipeline 3 of pressure limiting pipeline 2, two of inlet flange 1, being sequentially connected and one
Bypass line 4, outlet(discharge) flange 10 and Safety relief valve 11；Wherein, pressure limiting pipeline 2, pressure regulation pipeline 3 and bypass line 4 be successively simultaneously
Connection connection.
Pressure limiting pipeline 2 includes inlet ball valve 5, angle-style shaft type filter 6 and pressure limiting fast reaction pressure regulator 7, inlet ball valve
5th, angle-style shaft type filter 6 and pressure limiting fast reaction pressure regulator 7 are sequentially connected；Wherein, the effect of pressure limiting fast reaction pressure regulator 7
Mode belongs to direct acting type, and the pressure regulator range of accommodation is wide, flow is big, response speed is fast, and is provided with flat in the pressure regulator
Weighing apparatus film, for paroxysmal changes in flow rate can sense rapidly, and feeds back to pressure limiting fast reaction pressure regulator by the situation of sensing,
It is set according to circumstances to react rapidly, it is in the state of being turned on and off to adjust automatically, so as to ensure the normal of gas-fired equipment
Work；Angle-style shaft type filter 6 is mainly used in filtering the impurity in natural gas fluid.
Pressure regulation pipeline 3 includes inlet ball valve 5, angle-style shaft type filter 6 and measuring gas pressure regulator 8；Inlet ball valve 5,
Angle-style shaft type filter 6 and measuring gas pressure regulator 8 are sequentially connected；Pressure pipe is additionally provided with measuring gas pressure regulator 8, is used
In will make it in the pressure feedback for detecting to measuring gas pressure regulator, according to the pressure information adjust automatically, it is in unlatching
Or closed mode；Wherein, the model of action of measuring gas pressure regulator 8 belongs to indirect acting type, the pressure regulator range of accommodation is wide,
Compact conformation, big regulation flow, stable performance, sensitivity are high, convenient to install and maintain, are particularly well-suited to the pressure regulation to downtown areas
With the pressure regulation of the users for having different requirements to pressure, while the larger complex working condition of pressure fluctuation range before being also applied for.
According to one embodiment of the application, bypass line 4 is made up of release valve ball 9；When equipment breaks down or needs
During maintenance, bypass line 4 is opened, to ensure the normal operation of equipment.
Safety relief valve 11 is arranged on the port of export of voltage adjusting device, when pressure regulator outlet pressure exceedes setting value, valve
Automatic, discharges a part of gas, makes manifold pressure recover normal, to reach protection pressure regulator downstream gas-fired equipment safety
Purpose.
Adopt the detailed process that above-mentioned natural gas air inlet regulating device is adjusted to natural gas air inlet for：
In natural gas air inlet pressure regulation running, in addition to bypass line 4 is closed, other all pipelines are located
In the work condition state of feedforward voltage-regulation voltage-stabilization automatically, i.e., the inlet ball valve 5 of all pipelines will be in running and open state entirely；When natural
When gas admission pressure is more than setting value, the pressure limiting fast reaction pressure regulator 7 in pressure limiting pipeline 2 is closed automatically, pressure regulation
Measuring gas pressure regulator 8 in pipeline 3 brings into operation, and outlet pressure is controlled in desired value；When natural gas admission pressure it is little
When setting value, measuring gas pressure regulator 8 in pressure regulation pipeline 3 automatically in close or it is micro- open state, in pressure limiting pipeline 2
Pressure limiting fast reaction pressure regulator 7 enters working condition, outlet pressure is controlled below setting value that is, quick by pressure limiting
The inlet gas of low-pressure state are directly directed to outlet by reaction pressure regulator 7；In voltage regulating station running, in three pipelines
Pressure regulator can automatically run with the change of inlet pressure, close or it is micro- open, so as to realize whole system it is dynamic automatically before
The work condition state of feedback voltage-regulation voltage-stabilization.
Claims (2)
1. a kind of natural gas air inlet adjustment method, is characterized in that, including：
Compare the size of natural gas admission pressure and setting value；
When natural gas admission pressure is more than setting value, the pressure limiting fast reaction pressure regulator in pressure limiting pipeline is automatically regulated to be
Closed mode, the measuring gas pressure regulator operation in pressure regulation pipeline, outlet pressure is controlled in desired value；
When natural gas admission pressure be less than setting value when, the measurement formula pressure regulator valve in pressure regulation pipeline be automatically regulated to be closing or
Micro- to open state, in pressure limiting pipeline pressure limiting fast reaction pressure regulator operation, outlet pressure is controlled below setting value；
The natural gas air inlet regulating device that the recent control method of the natural gas is adopted, including：
At least one pressure limiting pipeline and at least one pressure regulation pipeline being connected in parallel with pressure limiting pipeline；
The pressure limiting pipeline includes inlet ball valve, angle-style shaft type filter and the pressure limiting fast reaction pressure regulator being sequentially connected；Institute
State pressure limiting fast reaction pressure regulator and be provided with balance film for reacting rapidly to paroxysmal changes in flow rate；
The pressure regulation pipeline includes inlet ball valve, angle-style shaft type filter and the measuring gas pressure regulator being sequentially connected；It is described
Measuring gas pressure regulator is provided with for by the pressure pipe of pressure feedback to measuring gas pressure regulator；
Also include at least one bypass line for being used to be used in the case of equipment fault or maintenance；The bypass line is by side
Pass ball valve is constituted.
2. natural gas air inlet adjustment method according to claim 1, is characterized in that：Including a pressure limiting pipeline and described
Two pressure regulation pipelines that pressure limiting pipeline is connected in parallel and the bypass line being connected in parallel with pressure regulation pipeline；Described two pressure regulation pipelines
It is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097634.8A CN104654014B (en) | 2015-03-05 | 2015-03-05 | Adjusting method for gas inlet of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097634.8A CN104654014B (en) | 2015-03-05 | 2015-03-05 | Adjusting method for gas inlet of natural gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104654014A CN104654014A (en) | 2015-05-27 |
| CN104654014B true CN104654014B (en) | 2017-04-19 |
Family
ID=53245465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097634.8A Active CN104654014B (en) | 2015-03-05 | 2015-03-05 | Adjusting method for gas inlet of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104654014B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681781B (en) * | 2018-12-29 | 2019-12-20 | 北京市燃气集团有限责任公司 | Operation method and device of gas pipe network terminal regulation and control equipment |
| CN111174095A (en) * | 2020-01-06 | 2020-05-19 | 阜阳国祯燃气有限公司 | Natural gas conveying airflow pressure regulating system |
| CN114321716B (en) * | 2021-12-31 | 2024-01-26 | 重庆瑞力比燃气设备股份有限公司 | Intelligent gas pressure regulating equipment with auxiliary-circuit switching function |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100576799B1 (en) * | 2004-08-04 | 2006-05-10 | 홍창기 | Gas supply discontinuance prevention device of double line regulator |
| CN202561438U (en) * | 2012-03-30 | 2012-11-28 | 蚌埠高科能源装备有限公司 | Gas pipeline system for natural gas pressure regulation device |
| CN203147284U (en) * | 2012-09-28 | 2013-08-21 | 天津华迈燃气装备股份有限公司 | Outlet pressure balance adjusting device of natural gas gate station |
| CN104075107B (en) * | 2013-03-27 | 2015-12-02 | 上海飞奥燃气设备有限公司 | A kind of technological process of LNG gasification |
| CN203533212U (en) * | 2013-09-02 | 2014-04-09 | 合肥巨网工业气体有限公司 | Double-way pressure regulating device of central gas supply system |
-
2015
- 2015-03-05 CN CN201510097634.8A patent/CN104654014B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104654014A (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104654014B (en) | Adjusting method for gas inlet of natural gas | |
| US10859087B2 (en) | Method for preventing surge in a dynamic compressor using adaptive preventer control system and adaptive safety margin | |
| CN103308290A (en) | Testing loop and testing method of three-way proportional pressure reducing valve | |
| CN103104811B (en) | A kind of pressure regulation air supply method of gas distributing system | |
| CN205592136U (en) | Pumping system, Vacuum pumping system and vacuum refining system | |
| CN105698242A (en) | High-rise direct-connected heating cycle system | |
| CN108755840A (en) | A kind of equal balance system of industrial flow and its matching process | |
| CN104500481B (en) | Load-sensitive control system, control method thereof and hydraulic equipment with load-sensitive control system | |
| CN109237111A (en) | A kind of pressure-regulating hydraulic system and its control method of self-balancing pressure regulator valve | |
| CN106086271A (en) | For the method reducing the energy efficiency of the blast furnace blower compressed air amount of leaking informaton | |
| CN110259676B (en) | Performance test equipment and test method for booster compressor | |
| CN105567902A (en) | Regulating device and method for gas chamber bypass pipe network | |
| CN203147284U (en) | Outlet pressure balance adjusting device of natural gas gate station | |
| CN107388037A (en) | Novel voltage-regulating batch meter | |
| CN205259265U (en) | Running water advance water control device | |
| CN207196084U (en) | Novel voltage-regulating batch meter | |
| CN205174319U (en) | Low pressure economizer automatic control device with adjustable | |
| CN205026359U (en) | Formula of relying on oneself lubricating oil temperature control device | |
| CN205065297U (en) | Safety device of material feeding pipe line | |
| CN104074561A (en) | Throttling adjusting system of cogeneration turbine unit and method of ordering power by heat | |
| CN204493353U (en) | Hydraulic oil on-Line Monitor Device and engineering machinery | |
| CN208830405U (en) | A kind of equal balance system of industrial flow | |
| CN107543141A (en) | Steam generator analogue body water supply system and control method during increasing temperature and pressure | |
| CN103324184B (en) | Gas transmission and distribution supervisory system | |
| CN207485660U (en) | For the decompression buffer unit of large reciprocating compressor enclosed performance test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 3104, 31st Floor, Building 1, No. 595 Mudan Street, Jinjiang District, Chengdu City, Sichuan Province, 610091 Patentee after: Sichuan Hongda Petroleum & Natural Gas Engineering Co.,Ltd. Address before: No. 9, 10th Floor, Building 1-2, No. 97 East Street, Jinjiang District, Chengdu City, Sichuan Province, 610091 Patentee before: SICHUAN HONGDA PETROLEUM & NATURAL GAS CO.,LTD. |
|
| CP03 | Change of name, title or address |