CN106224780A - Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method - Google Patents
Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method Download PDFInfo
- Publication number
- CN106224780A CN106224780A CN201610761977.4A CN201610761977A CN106224780A CN 106224780 A CN106224780 A CN 106224780A CN 201610761977 A CN201610761977 A CN 201610761977A CN 106224780 A CN106224780 A CN 106224780A
- Authority
- CN
- China
- Prior art keywords
- pressure
- pipeline
- valve
- natural gas
- comprehensive utilization
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
Abstract
The invention provides pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method, system includes throttle pressure regulation pipeline and pressure energy utilization system pipeline, throttling pressure regulation pipeline includes converging before pressure regulation and converges trachea etc. after trachea, stop valve, safety cut-off valve, the first pressure regulator, the second pressure regulator and pressure regulation, and pressure energy utilization system pipeline includes stop valve, safety cut-off valve, import emergency shutdown valve, electric control valve and pressure energy comprehensive utilization device etc..The control method of a kind of pressure energy of natural gas comprehensive utilization device variable parameter operation provided by the present invention and system, propose the interlocking control method of pressure energy utilization system pipeline and natural gas throttling pressure regulation pipeline parallel running, when the fluctuation of natural gas transmission amount is bigger, comprehensive utilization device is capable of variable working condition stable operation, and ensure that departures gas pressure meets pressure regulation requirement, meet downstream urban pipe network safe operation.
Description
Technical field
The present invention relates to be applicable to the pressure energy comprehensive utilization device at natural valve station and the variable working condition of throttling pressure regulation pipeline
Runing adjustment, specially pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method.
Background technology
At present, the domestic research for pressure energy of natural gas comprehensive utilization is more, is concentrated mainly on pressure energy of natural gas swollen
Swollen generating, the patent relating to pressure energy of natural gas gas-to electricity is the most more, and the pressure energy comprehensive utilization device related generally to is swollen
Swollen machine.When selecting screw expander as pressure energy of natural gas comprehensive utilization device, owing to screw expander belongs to positive displacement
Fluid machinery, after its screw speed determines, the entrance natural gas operating mode volume flow of decompressor also determines that.Work as natural gas transmission
When amount changes, if not being adjusted the entrance condition volume flow of screw expander, expansion efficiency will reduce, time serious
Expand the problems such as the fluctuation of rear gas pressure is big, displacement is not enough and under the influence of the safe operation of play pipe net.Natural valve
Standing in running, natural gas transmission amount is the most common phenomenon along with the change of downstream urban pipe network gas demand, with certain
Design displacement is 10000 Nm3As a example by the natural valve station of/h: at different periods, natural gas conveying capacity is 2500 ~ 12000
Nm3Fluctuate between/h.If do not implemented the present invention, for guaranteeing that natural gas Outlet pressure meets downstream pipe network requirement, screw expansion is sent out
Motor can only be 10000 Nm at gas discharge3Run in the narrower range of about/h, reduce the warp of expansion power generation device
Ji property.
In sum, when natural gas station applying pressure energy comprehensive utilization device, it is necessary to solving pressure can comprehensively utilize
Device is to the adaptability of natural gas transmission quantitative change working characteristics and maintains downstream supply gas pressure stable.
Authorization Notice No. be the patent of CN203362233U disclose a kind of utilize natural valve station pressure can screw rod swollen
Swollen engine electricity generation system, this patent uses screw expander to reclaim the expansion work generating of natural gas, but does not consider to expand
The stability contorting of rear natural gas outlet pressure.Authorization Notice No. be CN104088605A, CN101943323A and
The patent of invention of CN102563958A, when utilizing expansion transmitting apparatus to reclaim pressure energy of natural gas generating, is not directed to expand equally
The control method of rear gas pressure.
Authorization Notice No. is that the patent of CN203847188U discloses a kind of natural valve station complementary energy expansion power generation system, should
Patent uses comprehensive utilization unit to reclaim the pressure energy in natural gas, and the flow control valve related to is primarily to regulate natural gas
Semen donors, and use electrical control can cause the unstability of gas discharge equally, downstream gas distributing system will be caused
Have a strong impact on.
Authorization Notice No. is that the patent of CN203430574U proposes to use flow control valve to send out to regulate expansion power generation unit
Electrical power, and the pressure and temperature of natural gas after using pressure and temp static organ stably to expand.But flow control valve uses
, there is signal delay in automatically controlled form, meanwhile, and the natural pressure after pressure and temp static organ stably expands despite the use of
Power, but degree of regulation is relatively low, it is impossible to ensure to make full use of pressure energy of natural gas.
Summary of the invention
For the problems referred to above, the invention provides pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and
Method, by the interlocked control of utilization system pipeline with throttling pressure regulation pipeline parallel running, it is ensured that natural gas conveying quantitative change
Time dynamic, comprehensive utilization device is capable of variable working condition stable operation and meets downstream pipe network safe operation.
An object of the present disclosure is to provide a kind of pressure energy of natural gas comprehensive utilization device variable working condition interlock control system,
Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system, said system includes that throttling pressure regulation pipeline and pressure can be combined
Conjunction utilizes system pipeline, it is characterised in that above-mentioned throttling pressure regulation pipeline includes remittance trachea before pressure regulation, its import and high-pressure natural gas
Inlet pipeline be connected, its outlet is divided into two-way, one route be sequentially connected the first stop valve, the first safety cut-off valve, first tune
Depressor, the second pressure regulator, the second stop valve, the trachea that converges, downstream urban pipe network is connected to form；Separately lead up to the 3rd stop valve with
Pressure energy utilization system pipeline is connected, and above-mentioned pressure energy utilization system pipeline converges the above-mentioned remittance gas of entrance by pipeline
Guan Zhong；The second safety cut-off valve that above-mentioned pressure energy utilization system pipeline includes being sequentially connected, import emergency shutdown valve and
After electric control valve, pressure energy comprehensive utilization device, the 4th stop valve converge with throttling pressure regulation pipeline, enter remittance gas after pressure regulation
Pipe.
The present invention is further arranged to, above-mentioned first safety cut-off valve, the first pressure regulator, the second pressure regulator, the second safety
The natural gas Outlet pressure value that stop valve, electric control valve feed back all in accordance with control system is adjusted.Wherein, first cut safely
Disconnected valve and the second safety cut-off valve are the safety equipment that downstream feedback pressure carries out when exceeding setting value cutting off automatically, the first pressure regulation
Device and the second pressure regulator can according to downstream feedback pressure from Row sum-equal matrix aperture to guarantee downstream gas pressure stable voltage device one
As be divided into self-operated type and electrodynamic type, self-operated type is mainly worked as driving force voluntarily by downstream natural gas, and electrodynamic type mainly leads to
Cross analysis feedback signal to control motor action to realize automatic Regulation；According to different natural gas station design requirements, pressure regulator
Quantity changeable.Electric control valve is according to pressure energy comprehensive utilization device export gas pressure-regulating valve door aperture, it is ensured that go out
Stand the stablizing of gas pressure.
The second object of the present invention is to provide the interlocking control method of a kind of system as described above, and said system is applied to
Natural gas urban gate station also ensures that the uninterrupted of natural gas urban gate station supplies, the throttling pressure regulation pipeline of said system and comprehensive utilization
Controlling running status with system pipeline by interlocking control method, method specifically includes as follows；
A () is by setting the first pressure regulator and the operating pressure of the second pressure regulator, it is ensured that utilization system pipeline do not run or
When person is less than minimum operation flow, completely by throttling pressure regulation pipeline supply；
When () downstream urban pipe network gas consumption is more than comprehensive utilization device the highest operating flux b, rely on throttling pressure regulation pipeline to super
Go out part to shunt；
C (), when downstream urban pipe network gas consumption allows full admission flow less than comprehensive utilization device, throttling pressure regulation pipeline is certainly
Dynamic closedown, utilization system pipeline relies on electric control valve to throttle to adapt to gas consumption requirement in advance, meets comprehensive utilization simultaneously
The air inflow demand of device.
Compared with prior art, pressure energy of natural gas provided by the present invention comprehensive utilization device variable working condition interlocked control system
System and method, have the advantage that
(1) the highest self-operated type of stability or electrodynamic type pressure regulator and the higher electric control valve of degree of regulation are used, by pressure
Power is automatically adjusted pipeline ventilation, it is achieved the variable parameter operation of pressure energy comprehensive utilization device also meets city, downstream supply gas pressure
Requirement.
(2) when city, downstream gas consumption meets decompressor operating mode flow rate zone, it is ensured that pressure energy comprehensive utilization device is steady
Surely run and meet city, downstream supply gas pressure and stablize.
(3) when city, downstream gas consumption is higher than the pressure the highest operating flux of energy comprehensive utilization device, it is achieved pressure can be combined
Close and utilize system pipeline and the coordinated operation in parallel of throttling pressure regulation pipeline, in the case of ensureing operation safe year of downstream pipe network,
Maintain pressure energy comprehensive utilization device stable operation.
(4) when city, downstream gas consumption is less than decompressor minimum operation flow, it is achieved utilization system pipeline is with former
The automatic switchover of throttle system pipeline, had both protected comprehensive utilization device, and can ensure again stablizing of downstream supply gas pressure.
(5) by being respectively provided with emergency shutdown valve in pressure energy comprehensive utilization device import, can ensure that pressure can be combined further
Conjunction utilizes equipment safety, it is ensured that can switch back into rapidly throttling pressure regulation pipeline when the shutdown of pressure energy comprehensive utilization device or fault,
Ensure the stability of downstream supply；Meanwhile, emergency shutdown valve can be installed additional in outlet if desired and make double shield.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention.
Detailed description of the invention
Elaborate a lot of detail in the following description so that fully understanding the present invention.But the present invention can be with a lot
Being different from alternate manner described here to implement, those skilled in the art can do in the case of intension of the present invention
Similar popularization, therefore the present invention is not limited by following public specific embodiment.
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described further.
Embodiment 1
In the present embodiment, in conjunction with accompanying drawing, the structure of the present invention is described in detail.
Refer to accompanying drawing, the invention provides pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and side
Method, by utilization system pipeline and raw natural gas throttling pressure regulation pipeline parallel Operation Control, it is ensured that during displacement fluctuation, combine
Closing utilizes device can stably run and maintain stablizing of city, downstream supply gas pressure, it is achieved pressure energy utilization system pipe
Road and throttling pressure regulation pipeline stable coordination run.
Above-mentioned throttling pressure regulation pipeline includes remittance trachea 1 before pressure regulation, and its import is connected with high-pressure natural gas inlet pipeline, and it goes out
Mouth is divided into two-way, and the first stop valve 3 of leading up to is connected with the import of the first safety cut-off valve 4；Separately lead up to the 3rd cut-off
Valve 8 is connected with the import of the second safety cut-off valve 9；
The outlet of the first safety cut-off valve 4 is connected with the import of the first pressure regulator 5, the outlet of the first pressure regulator 5 and the second pressure regulation
The import of device 6 is connected, and the outlet of the second pressure regulator 6 is connected, after pressure regulation with remittance trachea 2 import after pressure regulation by the second stop valve 7
The outlet of remittance trachea 2 is connected with downstream urban pipe network.
Pressure energy utilization system pipeline includes the second safety cut-off valve 9, and the 3rd stop valve 8 and pressure regulation is passed through in its import
The outlet of front remittance trachea 1 is connected, and its outlet is connected with import emergency shutdown valve 10 import, the outlet of import emergency shutdown valve 10 and electricity
Dynamic regulation valve 11 import is connected, and the import that electric control valve 11 exports with comprehensive utilization device 12 is connected, comprehensive utilization device 12
Outlet converged with throttling pressure regulation pipeline by the 4th stop valve 13 after, converge trachea 2 after entering pressure regulation.
As the preferred implementation in this enforcement, above-mentioned first safety cut-off valve the 4, first pressure regulator the 5, second pressure regulator
6, the second safety cut-off valve 9 and electric control valve 11 are all adjusted as feedback by natural gas Outlet pressure, wherein, and first
Safety cut-off valve 4 and the second safety cut-off valve 9 are the safety equipment automatically carrying out cutting off, and when downstream, urban pipe network pressure reaches to set
When determining cut-out pressure, it is possible to automatically cut off supply；First pressure regulator the 5, second pressure regulator 6 is self-operated type or electrodynamic type pressure regulator
(according to different natural gas station design requirements, pressure regulator quantity changeable).Electric control valve 11 is electronic can be comprehensive according to pressure
Utilize device 12 export gas pressure-regulating valve door aperture, it is ensured that stablizing of departures gas pressure.
Embodiment 2
In the present embodiment, in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.
The technical program is applied to natural gas station.As it can be seen, the present invention provides pressure energy of natural gas comprehensive utilization dress
Put variable working condition interlock control system and method, including pressure energy utilization system pipeline and throttling pressure regulator valve pipeline.
In order to ensure the uninterrupted supply of natural gas station, time properly functioning, throttling pressure regulation pipeline and utilization system
Pipeline carries out interlocked control.By setting the first pressure regulator 5 and operating pressure of the second pressure regulator 6 respectively, it is ensured that comprehensive utilization
When system pipeline does not runs or is less than minimum operation flow, completely by throttling pressure regulation pipeline supply；Utilization system pipeline
Work has operated in the highest operating flux of comprehensive utilization device 12, when still can not meet downstream pipe network gas consumption requirement, relies on
Throttling pressure regulation pipeline flow dividing；When downstream gas consumption is in the range of comprehensive utilization device 12 normal operating flux, throttle surge pipe
Road is closed, and utilization system pipeline relies on electric control valve 11 to throttle to adapt to gas consumption requirement in advance, meets comprehensive utilization simultaneously
By the air inflow demand of device 12.
Specifically combine following control method to launch to illustrate:
As a example by certain natural gas urban gate station, the normal supply gas pressure in downstream is at about P, it is desirable to pressure energy comprehensive utilization device 12 goes out
Mouth pressure is set as P+ Δ P in P+ more than Δ P (being controlled by electric control valve 11), the operating pressure of the first pressure regulator 5,
The operating pressure of the second pressure regulator 6 is set as P, the first pressure regulator the 5, second pressure regulator 6 and duty of electric control valve 11
As follows with the change of departures gas pressure with pipeline ruuning situation:
(1) when natural gas displacement is higher than the highest operating flux of comprehensive utilization device 12, departures gas pressure gradually drops
Low, when comprehensive utilization device 12 export gas pressure is reduced to P+ Δ P until below P, and now the first pressure regulator 5 and second is adjusted
Depressor 6 is opened in succession, and the natural gas beyond pressure energy comprehensive utilization device 12 the highest permission air inflow part is further separated into throttling
Pressure regulation pipeline.
(2) when natural gas displacement meets the normal operating flux scope of comprehensive utilization device 12, set off natural pressure
Power is higher than the first pressure regulator 5 and pressure set points of the second pressure regulator 6, and the first pressure regulator 5 and the second pressure regulator 6 are in closedown shape
State, electric control valve 11 is in running order, regulates comprehensive utilization device inlet pressure, maintains comprehensive utilization device 12 outlet pressure
Power in P+ more than Δ P (properly functioning be consistently lower than the first safety cut-off valve 4 and pressure set points of the second safety cut-off valve 9),
The natural gas that enters the station all walks pressure energy utilization system pipeline.
Although the present invention is open as above with preferred embodiment, but it is not for limiting the present invention, any this area skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and amendment, the therefore guarantor of the present invention
The scope of protecting should be defined in the range of standard with the claims in the present invention.
Claims (3)
1. pressure energy of natural gas comprehensive utilization device variable working condition interlock control system, described system includes throttle pressure regulation pipeline and pressure
Power energy utilization system pipeline, it is characterised in that described throttling pressure regulation pipeline includes converging before pressure regulation trachea (1), its import with
High-pressure natural gas inlet pipeline is connected, and its outlet is divided into two-way, and one route the first stop valve (3), the first safety being sequentially connected
Stop valve (4), the first pressure regulator (5), the second pressure regulator (6), the second stop valve (7), the trachea (2) that converges, downstream urban pipe network phase
Even composition；The 3rd stop valve (8) of separately leading up to is connected with pressure energy utilization system pipeline, and described pressure can comprehensively utilize
System pipeline is converged in the described remittance trachea (2) of entrance by pipeline；Described pressure energy utilization system pipeline includes phase successively
The second safety cut-off valve (9), import emergency shutdown valve (10) and electric control valve (11) even, pressure energy comprehensive utilization device
(12), the 4th stop valve (13) and throttling be after pressure regulation pipeline converges, and converges trachea (2) after entering pressure regulation.
2. pressure energy of natural gas comprehensive utilization device variable working condition interlock control system as claimed in claim 2, it is characterised in that
Described first safety cut-off valve (4), the first pressure regulator (5), the second pressure regulator (6), the second safety cut-off valve (9), motorized adjustment
The natural gas Outlet pressure value that valve (11) feeds back all in accordance with control system is adjusted.
3. the interlocking control method of system as described in any one of claim 1-2, it is characterised in that: described system is applied to
Natural gas urban gate station also ensures that the uninterrupted of natural gas urban gate station supplies, the throttling pressure regulation pipeline of described system and comprehensive utilization
Controlling running status with system pipeline by interlocking control method, method specifically includes as follows；
By setting the first pressure regulator (5) and the operating pressure of the second pressure regulator (6), it is ensured that utilization system pipeline does not runs
Or during less than minimum operation flow, completely by throttling pressure regulation pipeline supply；
When downstream urban pipe network gas consumption is more than comprehensive utilization device (12) the highest operating flux, rely on throttling pressure regulation pipeline to super
Go out part to shunt；
When downstream urban pipe network gas consumption allows full admission flow less than comprehensive utilization device (12), throttling pressure regulation pipeline is certainly
Dynamic closedown, utilization system pipeline relies on electric control valve (11) to throttle to adapt to gas consumption requirement in advance, meets comprehensive simultaneously
Utilize the air inflow demand of device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761977.4A CN106224780A (en) | 2016-08-31 | 2016-08-31 | Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610761977.4A CN106224780A (en) | 2016-08-31 | 2016-08-31 | Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106224780A true CN106224780A (en) | 2016-12-14 |
Family
ID=58071850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610761977.4A Pending CN106224780A (en) | 2016-08-31 | 2016-08-31 | Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224780A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712060A (en) * | 2014-01-15 | 2014-04-09 | 青岛恒邦机电科技有限公司 | Oxygen regulating valve group |
| CN203847188U (en) * | 2014-05-13 | 2014-09-24 | 北京华航盛世能源技术有限公司 | Complementary energy comprehensive utilization system of natural gas regulator station |
| CN203907223U (en) * | 2014-06-09 | 2014-10-29 | 中国科学院工程热物理研究所 | Natural gas gate station energy comprehensive utilization system with controllable air amount |
| CN204328479U (en) * | 2014-11-20 | 2015-05-13 | 天津华迈燃气装备股份有限公司 | A kind of Gas Pressure Regulating Equipment adopting the uninterrupted air feed of monitoring guarantee in parallel |
| CN204729927U (en) * | 2015-06-04 | 2015-10-28 | 四川惠百民石化机械制造有限公司 | Compact gas pressure-regulating box |
| CN105041395A (en) * | 2015-08-11 | 2015-11-11 | 浙江浙能节能科技有限公司 | System for recovering and comprehensively utilizing pressure energy of natural gas pipeline network |
| CN204962299U (en) * | 2015-08-21 | 2016-01-13 | 四川省犍为峨山阀门有限责任公司 | User's gas pressure regulating cabinet system |
| CN205001856U (en) * | 2015-09-15 | 2016-01-27 | 首钢京唐钢铁联合有限责任公司 | Oxygen send pipe network device |
| CN205026399U (en) * | 2015-09-15 | 2016-02-10 | 天津华迈燃气装备股份有限公司 | Series connection regulator in voltage regulating station |
| CN105757455A (en) * | 2016-04-28 | 2016-07-13 | 华电郑州机械设计研究院有限公司 | Natural gas differential pressure energy recovery unit device |
| CN206036669U (en) * | 2016-08-31 | 2017-03-22 | 浙江浙能节能科技有限公司 | Device variable working condition interlocking control system is used multipurposely to natural gas pressure energy |
-
2016
- 2016-08-31 CN CN201610761977.4A patent/CN106224780A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712060A (en) * | 2014-01-15 | 2014-04-09 | 青岛恒邦机电科技有限公司 | Oxygen regulating valve group |
| CN203847188U (en) * | 2014-05-13 | 2014-09-24 | 北京华航盛世能源技术有限公司 | Complementary energy comprehensive utilization system of natural gas regulator station |
| CN203907223U (en) * | 2014-06-09 | 2014-10-29 | 中国科学院工程热物理研究所 | Natural gas gate station energy comprehensive utilization system with controllable air amount |
| CN204328479U (en) * | 2014-11-20 | 2015-05-13 | 天津华迈燃气装备股份有限公司 | A kind of Gas Pressure Regulating Equipment adopting the uninterrupted air feed of monitoring guarantee in parallel |
| CN204729927U (en) * | 2015-06-04 | 2015-10-28 | 四川惠百民石化机械制造有限公司 | Compact gas pressure-regulating box |
| CN105041395A (en) * | 2015-08-11 | 2015-11-11 | 浙江浙能节能科技有限公司 | System for recovering and comprehensively utilizing pressure energy of natural gas pipeline network |
| CN204962299U (en) * | 2015-08-21 | 2016-01-13 | 四川省犍为峨山阀门有限责任公司 | User's gas pressure regulating cabinet system |
| CN205001856U (en) * | 2015-09-15 | 2016-01-27 | 首钢京唐钢铁联合有限责任公司 | Oxygen send pipe network device |
| CN205026399U (en) * | 2015-09-15 | 2016-02-10 | 天津华迈燃气装备股份有限公司 | Series connection regulator in voltage regulating station |
| CN105757455A (en) * | 2016-04-28 | 2016-07-13 | 华电郑州机械设计研究院有限公司 | Natural gas differential pressure energy recovery unit device |
| CN206036669U (en) * | 2016-08-31 | 2017-03-22 | 浙江浙能节能科技有限公司 | Device variable working condition interlocking control system is used multipurposely to natural gas pressure energy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101581252B (en) | Method for controlling set point for extracting air to provide cooling air | |
| CN104005801B (en) | A kind of low pressure steam Differential pressure power generation system and reuse steam back pressure control method thereof | |
| CN106640246B (en) | A kind of safety operation control that natural gas pipe network pressure energy utilizes realization system and method | |
| CN103438429B (en) | Boiler-steam dome tank level control system | |
| CN104100509B (en) | Electrically driven feedpump and steam feed pump paired running autocontrol method | |
| CN104989459A (en) | Intelligent natural gas pipe network pressure energy power generating device and control method thereof | |
| CN109441560A (en) | A kind of expansion power generator air admittance regulation system and method | |
| CN108468575B (en) | System for changing extraction condensing unit into back pressure unit based on injection heat pump and operation method thereof | |
| CN206036669U (en) | Device variable working condition interlocking control system is used multipurposely to natural gas pressure energy | |
| CN105953074A (en) | Intelligent power generation and pressure regulation box for natural gas pipeline network | |
| CN104390472B (en) | Low temperature exhaust heat boiler is adopted to carry out hardening and tempering method and the modifying device of electric precipitation flue gas | |
| CN203750996U (en) | Turbid circulating water supply system for rolling mill in hot-rolling rod and wire production line | |
| CN106224780A (en) | Pressure energy of natural gas comprehensive utilization device variable working condition interlock control system and method | |
| CN209228417U (en) | A kind of expansion power generator air admittance regulation system | |
| CN103320569A (en) | Oxygen pressure adjustment apparatus and adjustment method for electric furnace | |
| CN207539628U (en) | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe over long distances | |
| CN207683266U (en) | A kind of pressure regulating system of craneman's house hydraulic-driven air conditioner | |
| CN105423132B (en) | A kind of natural gas pressure regulating system and its setting method | |
| CN205560282U (en) | Air pressure regulating device | |
| CN115788612A (en) | Pipeline system and start-stop mode of differential pressure turboexpander set | |
| CN201696101U (en) | Full admission steam turbine generator unit | |
| CN204943997U (en) | A kind of full factory shares open cycle cooling water system | |
| CN107816635A (en) | Become the anti-blocking making-up air device of absolute altitude ash conveying pipe and anti-blocking supplementing method for air over long distances | |
| CN207093209U (en) | Pressure regulation power generation integrated system | |
| CN1175177C (en) | Turbine generating process for one machine to recover waste gas energy from several blast furnaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |
|
| RJ01 | Rejection of invention patent application after publication |