CN204992612U - Double -pipeline ventilation air methane power generation system - Google Patents
Double -pipeline ventilation air methane power generation system Download PDFInfo
- Publication number
- CN204992612U CN204992612U CN201520728721.4U CN201520728721U CN204992612U CN 204992612 U CN204992612 U CN 204992612U CN 201520728721 U CN201520728721 U CN 201520728721U CN 204992612 U CN204992612 U CN 204992612U
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- China
- Prior art keywords
- power
- central controller
- reactive power
- power factor
- gas electricity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model provides a double -pipeline ventilation air methane power generation system, includes generating line row, is connected with outside electric wire netting and binary channels gas generating electricity system on the generating line is arranged, and it is its power supply that outside electric wire netting and binary channels gas generating electricity system are connected to the load through generating line row, and the generating line still is connected with reactive power compensator on arranging, and outside electric wire netting and site department are provided with the power meter, and power meter, binary channels gas generating electricity system and reactive power compensator all are connected to central controller, the power meter is used for detecting the power factor who acquires outside electric wire netting and be incorporated into the power networks and locate to send power factor to central controller, the power factor that central controller sent in the receive power table to according to power factor value control gas power generation system's air input, and adjust reactive power compensator. The utility model discloses can automatic power factor control, avoid because of be incorporated into the power networks power factor excessively low leading to the fine appears, carry high energy comprehensive utilization, energy saving and emission reduction, gas -combustion generator's steady operation can be guaranteed to the double - circuit admission line.
Description
Technical field
The utility model belongs to generation of electricity by new energy management control technique field, relates to a kind of twin flue ventilation air gas electricity generation system.
Background technology
Gas electricity unit can make full use of ventilation air gas gas, the comprehensive utilization of the energy is achieved again while reducing weary wind gas emissions, reducing environmental pollution, a kind of environmental protection, energy-conservation forms of electricity generation, cleaner production energy development can be actively pushed forward, realize the generating integrated process of coal mining gas production, effectively improve the level of production.Under comprehensive utilization of energy and the day by day strong overall situation of environmental protection demand, the access of gas electricity unit will have wide development and apply prospect, simultaneously, due to the access of gas electricity unit, its higher level the power flow of site will change, even may there is two-way change, cause and the fluctuation of site power factor, lower than the power factor examination value of grid company, cause certain fine, cannot integral power factor information, coordinate ventilation air gas electricity generation system, existing weary wind pipeline many employings one-pipe, effectively can not increase air demand, fail safe is lower, and can not carry out accurately controlling the whole gas electricity unit when weary wind pipeline breaks down to air inlet and will quit work.
Summary of the invention
The purpose of this utility model is to provide a kind of twin flue ventilation air gas electricity generation system, solve in prior art and effectively can not control weary wind pipeline air demand, accurately can not control the weary wind air inflow of pipeline, and due to and the power fluctuation at site place causes it lower than problems such as the power factor examination values of grid company.
The technical scheme that the utility model adopts is, a kind of twin flue ventilation air gas electricity generation system, comprise bus bar, bus bar is connected with external electrical network and binary channels gas electricity system, external electrical network and binary channels gas electricity system are connected to load for its power supply through bus bar, bus bar is also connected with reactive power compensator, external electrical network site place is provided with wattmeter, wattmeter, binary channels gas electricity system and reactive power compensator are all connected to central controller; Twin flue gas electricity system comprises gas electricity unit, gas electricity unit is provided with the first weary wind admission line and the second weary wind admission line, and the air inlet place of the first weary wind admission line and the second weary wind admission line is respectively arranged with the first normal closed gate and the second normally open valve door;
Wherein, wattmeter obtains the power factor at the grid-connected place of external electrical network for detecting, and power factor is sent to central controller; Central controller is used for the power factor that received power table sends, and controls the opening and closing of the first normal closed gate and the second normally open valve door according to power factor value, and regulates reactive power compensator.
Further, first normal closed gate and the second normally open valve door are respectively arranged with the first normal closed gate controller and the second normally open valve door controller, first normal closed gate controller and the second normally open valve door controller are connected to central controller respectively, and the control command for receiving central controller transmission controls the air-suction state of the first weary wind admission line and the second weary wind admission line.
Further, reactive power compensator is provided with reactive power compensator access switch, reactive power compensator access switch is connected to central controller, provides reactive power compensation for the control command receiving central controller transmission to control reactive power compensator.
The beneficial effects of the utility model are, the power factor obtained according to power meter scale can the access way of control gas electricity generation system and reactive power compensator flexibly, when power factor reduces, power factor can be improved by input reactive power compensator and/or gas electricity system, adopt twin flue design can realize twin flue air inlet from same conveyance conduit and/or from different two conveyance conduits, safe and reliable; Effective increase air demand, realizes the efficiency utilization of gas electricity system; Meanwhile, twin flue can finely control air inflow, has reached precise controlling power factor (PF); Finally, the weary wind admission line of two-way can be replaced when pipeline breaks down and use to ensure that gas electricity system is normally run.
Accompanying drawing explanation
Fig. 1 is a kind of twin flue ventilation air gas of the utility model power generation system structure schematic diagram;
Fig. 2 is the using method flow chart of a kind of twin flue ventilation air gas of the utility model electricity generation system.
In figure, 1. load, 2. wattmeter, 3. central controller, 4. the first weary wind admission line, 5. the second weary wind admission line, 6. gas electricity unit, 7. the first normal closed gate, 8. the second normally open valve door, 9. reactive power compensator, 10. reactive power compensator access switch, 11. bus bars, 12. first normal closed gate controllers, 13. second normally open valve door controllers.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The utility model provides a kind of twin flue ventilation air gas electricity generation system, as shown in Figure 1, comprise the external electrical network being connected in parallel to bus bar 11, gas electricity system and load 1, external electrical network and gas electricity system are powered for load 1 by bus bar 11 is grid-connected, by being arranged on external electrical network and the wattmeter 2 at site place detects and obtains external electrical network the power factor at site place, bus bar 11 is also connected with reactive power compensator 9 for increasing reactive power, wattmeter 2 is connected to central controller 3, central controller 3 is connected to the control end of reactive power compensator 9 and gas electricity system, the power factor detected is sent to central controller 3 by wattmeter 2, the power factor that central controller 3 sends for received power table 2, and carry out regulating power factor size according to the air inflow of the power factor value two-way admission line of control gas electricity generation system respectively, also can increase by regulating reactive power compensator 9 power factor that reactive power regulates external electrical network, bulk power grid instructions for use is met to meet also site power factor.
Gas electricity system comprises the first weary wind admission line 4 and the second weary wind admission line 5 two-way admission line, when a road admission line goes wrong, another road can ensure the normal operation of gas electricity system, the air inlet place of the first weary wind admission line 4 and the second weary wind admission line 5 is respectively arranged with the first normal closed gate 7 and the second normally open valve door 8 for controlling admission line opening and closing, first normal closed gate 7 with the second normally open valve door 8 is respectively arranged with the first normal closed gate controller 12 and the second normally open valve door controller 13 be connected with central controller 3, by central controller 3 according to receive and site power factor change situation sends instruction to control the first weary wind admission line 4 and the second weary wind admission line 5 air inflow to the first normal closed gate controller 12 and the second normally open valve door controller 13 respectively, wherein the first normal closed gate 7 is in normally off, second normally open valve door 8 is in normally open, weary general mood body is provided to gas electricity unit 6 by the second weary wind admission line 5, when power factor changes, first the air inflow size of the second weary wind admission line 5 is regulated to change the energy output of gas electricity system by controlling the second normally open valve door 8, external electrical network is adjusted and the power factor at site place with this, bulk power grid instructions for use is met to meet also site power factor, can not meet and site place power factor command if regulated, central controller 3 controls the first normal closed gate controller 12 and opens the first normal closed gate 7, the energy output of gas electricity system is changed by the size of open to shut to regulate first weary wind admission line 4 air inflow controlling the first normal closed gate 7, external electrical network is regulated and the power factor at site place by the energy output changing gas electricity system, bulk power grid instructions for use is met to meet also site power factor, article two, the cooperation of air inlet pipeline regulates the coarse adjustment and accurate adjustment that can realize gas with accurate control gas generating set energy output.
Reactive power compensator 9 is provided with the reactive power compensator be connected with central controller 3 and accesses switch 10, when wattmeter 2 detect external electrical network and the power factor change at site place time, central controller 3 can access by reactive power compensator the reactive power compensation output that switch 10 controls reactive power compensator 9, meets bulk power grid instructions for use to meet also site power factor.
The utility model provides a kind of using method of twin flue ventilation air gas electricity generation system, be load supplying by external electrical network and gas electricity system, gather the power factor of external electrical network by wattmeter and be sent to central controller, central controller according to the power factor received come the air inflow of control gas electricity generation system, reactive power compensator access whether.
Wherein, as shown in Figure 2, obtained the power factor PFt of t external electrical network by central controller 3 by wattmeter 2, and then carry out operation control judgement, deadband upper limit value is 90%, and deadband lower limit value is 85%:
1) if the power factor PFt of the external electrical network of wattmeter collection is higher than deadband upper limit value, and the second normally open valve door current state is full admission amount, then judge the opening and closing situation of the first normal closed gate:
If the first normal closed gate is opened, then judge whether the first normal closed gate is full admission amount, if it is maintain current air inflow, increase by the first normal closed gate air inflow operation matter instruction if not then assigning the first normal closed gate controller, air inlet increment is 10% of current air inflow;
If the first normal closed gate is not opened, then assign the first normal closed gate controller opens first normal closed gate operational order.
2) if PFt is higher than deadband upper limit value, and the non-full admission amount of the second air intake valve current state, then assigning the second normally open valve door controller increases by the second normally open valve valve capacity operational order, and air inlet increment is 10% of current air inflow.
3) if PFt is lower than deadband upper limit value, and higher than deadband lower limit value, then valve positioner maintains current air inflow.
4) if PFt is lower than deadband lower limit value, and reactive power compensator comes into operation, then judge the first normal closed gate opening and closing situation:
If the first normal closed gate is opened, then assign the first normal closed gate controller and close the first normal closed gate operational order;
If the first normal closed gate is not opened, then judge whether the second normally open valve door current state is minimum air inflow, if minimum air inflow then control gas generating set is standby, if not minimum air inflow, then assign the second normally open valve door controller and reduce by the second normally open valve valve capacity operational order, air inlet decrement is 5% of current air inflow.
5) if PFt is lower than deadband lower limit value, and reactive power compensator does not come into operation, then assign reactive power compensator access switch close command, reactive power compensator is started working.
A kind of twin flue ventilation air gas of the utility model electricity generation system, can regulating power factor automatically, utilize on maximized basis at gas electricity unit, flexible control ventilation air gas generating set and reactive power compensator regulate and the power factor of site, avoid causing because the power factor that is incorporated into the power networks is too low occurring fine, integral power factor information, unified coordination ventilation air gas generating set and reactive power compensation, utilize weary general mood body as far as possible, improve comprehensive utilization of energy rate, energy-saving and emission-reduction, adopt twin flue design can realize twin flue air inlet from same conveyance conduit, also can from different two conveyance conduits, more reliable in fail safe, adopt twin flue, effectively can increase air demand than one-pipe, realize high power operation and the efficiency utilization of gas electricity unit, meanwhile, adopt two admission lines, and controlled respectively, power control can be realized more subtly in tolerance control, finally, the weary wind admission line of two-way can be replaced when pipeline breaks down and use to ensure that gas electricity system is normally run.
Claims (3)
1. a twin flue ventilation air gas electricity generation system, it is characterized in that, comprise bus bar (11), described bus bar (11) is connected with external electrical network and binary channels gas electricity system, described external electrical network and described binary channels gas electricity system are connected to load (1) for its power supply through bus bar (11), described bus bar (11) is also connected with reactive power compensator (9), described external electrical network site place is provided with wattmeter (2), described wattmeter (2), described binary channels gas electricity system and described reactive power compensator (9) are all connected to central controller (3), twin flue gas electricity system comprises gas electricity unit (6), described gas electricity unit (6) is provided with the first weary wind admission line (4) and the second weary wind admission line (5), and the air inlet place of described first weary wind admission line (4) and described second weary wind admission line (5) is respectively arranged with the first normal closed gate (7) and the second normally open valve door (8),
Wherein, described wattmeter (2) obtains the power factor at the grid-connected place of external electrical network for detecting, and described power factor is sent to central controller (3); The power factor that described central controller (3) sends for receiving described wattmeter (2), and control the opening and closing of described first normal closed gate (7) and described second normally open valve door (8) according to described power factor value, and regulate described reactive power compensator (9).
2. a kind of twin flue ventilation air gas electricity generation system as claimed in claim 1, it is characterized in that, described first normal closed gate (7) and described second normally open valve door (8) are respectively arranged with the first normal closed gate controller (12) and the second normally open valve door controller (13), described first normal closed gate controller (12) and described second normally open valve door controller (13) are connected to described central controller (3) respectively, for receiving control command that described central controller (3) transmits to control the air-suction state of described first weary wind admission line (4) and described second weary wind admission line (5).
3. a kind of twin flue ventilation air gas electricity generation system as claimed in claim 1 or 2, it is characterized in that, described reactive power compensator (9) is provided with reactive power compensator access switch (10), described reactive power compensator access switch (10) is connected to described central controller (3), and the control command transmitted for receiving described central controller (3) provides reactive power compensation to control described reactive power compensator (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728721.4U CN204992612U (en) | 2015-09-20 | 2015-09-20 | Double -pipeline ventilation air methane power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520728721.4U CN204992612U (en) | 2015-09-20 | 2015-09-20 | Double -pipeline ventilation air methane power generation system |
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| Publication Number | Publication Date |
|---|---|
| CN204992612U true CN204992612U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520728721.4U Expired - Fee Related CN204992612U (en) | 2015-09-20 | 2015-09-20 | Double -pipeline ventilation air methane power generation system |
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| CN (1) | CN204992612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723544A (en) * | 2017-10-27 | 2019-05-07 | 张秀 | A kind of twin flue ventilation air gas electricity generation system |
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2015
- 2015-09-20 CN CN201520728721.4U patent/CN204992612U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723544A (en) * | 2017-10-27 | 2019-05-07 | 张秀 | A kind of twin flue ventilation air gas electricity generation system |
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| 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: 20160120 Termination date: 20210920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |