CN209228417U - A kind of expansion power generator air admittance regulation system - Google Patents
A kind of expansion power generator air admittance regulation system Download PDFInfo
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- CN209228417U CN209228417U CN201920020244.4U CN201920020244U CN209228417U CN 209228417 U CN209228417 U CN 209228417U CN 201920020244 U CN201920020244 U CN 201920020244U CN 209228417 U CN209228417 U CN 209228417U
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Abstract
The utility model discloses a kind of expansion power generator air admittance regulation systems, including air accumulator, air inlet throttle, on-load valve, red switch valve, heat exchanger, transmission shaft, expanding machine and generator, air inlet throttle to be mounted on the outlet conduit of air accumulator；Outlet conduit after air inlet throttle is divided into branch one and branch two, load valve is provided on one pipeline of branch, red switch valve is installed on two pipeline of branch, heat exchanger is connected to after one pipeline of branch and two pipe influx of branch, heat exchanger is connected to expanding machine, and generator is connected with expanding machine by transmission shaft.The utility model startup stage different according to unit, it does work so that compressed air enters expanding machine by different pipelines, both it had been able to achieve being precisely controlled for revolving speed in expansion power generator start-up course, prevent hypervelocity accident, set grid-connection speed is improved, and is able to achieve requirement of the unit with rated load operation.
Description
Technical field
The utility model belongs to expansion power generator air inlet adjustment equipment technical field, and in particular to a kind of expansion power generator into
Gas regulating system.
Background technique
Compressed-air energy storage is to start compressed-air energy storage process, consumption electrical energy drive compression in power grid electric surplus
Machine operation, air enter compressed air reservoir after multi-stage compression；When power grid electric is in short supply, start expanding machine power generation process:
Pressure-air in air accumulator enters expanding machine and carries out multiple expansion, driving expanding machine rotation, driven generator power generation.
Expansion power generator starting power generation is divided into two processes, is starting red switch process first, expansion power generator is from static shape
After state reaches rated speed, into on-load power generation process.The continuous consumption of compressed air during two, therefore air accumulator pressure
Power is one and gradually decreases process, and reservoir pressure is maximum, the starting of expansion power generator red switch at this time, because of expansion power generation before starting
Machine rotor is light, and air inflow needed for red switch is small, if in a traditional way only with an air inlet adjustment valve, it will so that control valve opening
Too small, expansion power generator revolving speed is not easy to control, and the fluctuation of speed is big, and grid-connected revolving speed in the process is difficult to control, and causes grid-connected difficulty, together
When also easily cause unit to exceed the speed limit accident, and the flow restriction control under high pressure be easy to cause unit efficiency to reduce.Therefore it needs to send out
Motor air admittance regulation system, that is, be able to satisfy the accurate control of revolving speed during unit red switch, and is able to satisfy unit band rated load
The requirement of operation.
Summary of the invention
The technical issues of the utility model solves is: a kind of expansion power generator air admittance regulation system is provided, it is above-mentioned to solve
The technical problems existing in the prior art.
The technical solution that the utility model is taken are as follows: a kind of expansion power generator air admittance regulation system, including air accumulator, air inlet
Throttle, on-load valve, red switch valve, heat exchanger, transmission shaft, expanding machine and generator, air inlet throttle are mounted on air accumulator
On outlet conduit；Outlet conduit after air inlet throttle is divided into branch one and branch two, is provided with load on one pipeline of branch
Valve is equipped with red switch valve on two pipeline of branch, and heat exchanger is connected to after one pipeline of branch and two pipe influx of branch, and heat exchanger connects
It is connected to expanding machine, generator is connected with expanding machine by transmission shaft.
Preferably, above-mentioned one pipe diameter of branch is greater than two pipe diameter of branch, and the latus rectum of on-load valve is greater than red switch valve
Latus rectum.
Preferably, above-mentioned air inlet throttle is switching mode valve, and use is electronic, the valve that pneumatically or hydraulically controls.
The utility model has the beneficial effects that compared with prior art, the utility model startup stage different according to unit,
It does work so that compressed air enters expanding machine by different pipelines, had both been able to achieve the essence of revolving speed in expansion power generator start-up course
Quasi- control, prevents hypervelocity accident, improves set grid-connection speed, and be able to achieve requirement of the unit with rated load operation.
Detailed description of the invention
Fig. 1 is the system diagram of the utility model.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1: as shown in Figure 1, a kind of expansion power generator air admittance regulation system, including air accumulator 1, air inlet throttle 2,
On-load valve 3, red switch valve 4, heat exchanger 5, transmission shaft 6, expanding machine 7 and generator 8, air inlet throttle 2 are mounted on air accumulator 1
On outlet conduit；Outlet conduit after air inlet throttle 2 is divided into branch 1 and branch 2 10, is provided on one 9 pipeline of branch
Load valve 3 is equipped with red switch valve 4 on 2 10 pipeline of branch, is connected to heat exchange after one 9 pipeline of branch and 2 10 pipe influx of branch
Device 5, heat exchanger 5 are connected to expanding machine 7, and generator 8 is connected with expanding machine 7 by transmission shaft.
When system works, pressure-air is stored in air accumulator 1, through branch one or branch two after the heating of heat exchanger 5
Expansion workmanship is carried out into expanding machine 7, generator 8 is driven to generate electricity.
Preferably, above-mentioned one 9 pipe diameter of branch is greater than 2 10 pipe diameter of branch, and the latus rectum of on-load valve 3 is greater than punching
The latus rectum of rotary valve 4.
Preferably, above-mentioned air inlet throttle 2 is switching mode valve, and use is electronic, the valve 2 that pneumatically or hydraulically controls, into
Gas throttle 2 has the function of quick closing valve.
The caliber of one pipeline of branch meets the requirement under unit maximum continuous boost with expansion power generator with oepration at full load,
The latus rectum of on-load valve 3 meets the requirement under unit maximum continuous boost with expansion power generator with oepration at full load.
The caliber of two pipeline of branch meets the requirement of 5% rated load operation of band under the minimum red switch pressure of unit, red switch valve 4
Latus rectum meet the requirement with 5% rated load operation of band under unit maximum continuous boost.
Preferably, above-mentioned on-load valve 3, red switch valve 4 are adjustment type valve, can keep or run in any opening degree, be
Electronic, pneumatically or hydraulically manipulation and control mode.
Embodiment 2: a kind of adjusting method of expansion power generator air admittance regulation system, this method are as follows: when unit outage, Quan Guan
Air inlet throttle 2, on-load valve 3 and red switch valve 4；Unit starting red switch to band at full capacity during, 3 aperture v of on-load valve3、
4 aperture v of red switch valve4It is main valve bit instruction v respectivelytFunction；
During unit starting red switch, full admission throttle 2 and full pass on-load valve 3, according to the expansion power generation of setting
Machine rotating speed of target and raising speed rate, to keep actual speed consistent with rotating speed of target, main valve bit instruction vtIt is gradually increased, red switch valve 4 is opened
Spend v4In main valve bit instruction vtUnder the action of be gradually increased so that unit actual speed is matched with rotating speed of target, until set steady
In rated speed；
When generating unit speed reaches rated speed, it is connected to the grid when running, main valve bit instruction vtIncrease 3%, 4 aperture of red switch valve
v4It synchronizes out greatly, prevents reverse-power in the generator.During load up, to keep actual load consistent with target load, main valve position refers to
Enable vtIt is gradually increased, when main valve bit instruction reaches 15%, red switch valve 4 is ended, meanwhile, 3 aperture v of on-load valve3Gradually open,
The target load of unit actual load and unit is set to match；When main valve bit instruction reaches 50%, red switch valve 4 is progressively closed off,
Main valve bit instruction reaches 70%, and red switch valve 4 has closed.
3 aperture v of load valve3With main valve bit instruction vtMeet following relationship:
In formula, F (vt) function that is determined by load valve (3) valve flow characteristic.
Red switch valve opening v4With main valve bit instruction vtMeet following relationship:
In formula, G (vt) function that is determined by red switch valve (3) valve flow characteristic.
Example above description is only a specific implementation of the present invention, the protection scope of the utility model not office
It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or
Alternative, these should be covered within the scope of the utility model.For this purpose, the protection scope of the utility model should be with
Subject to the scope of protection of the claims.
Claims (3)
1. a kind of expansion power generator air admittance regulation system, it is characterised in that: negative including air accumulator (1), air inlet throttle (2), band
Lotus valve (3), red switch valve (4), heat exchanger (5), transmission shaft (6), expanding machine (7) and generator (8), air inlet throttle (2) installation
On the outlet conduit of air accumulator (1)；Outlet conduit after air inlet throttle (2) is divided into branch one (9) and branch two (10), branch
It is provided with load valve (3), is equipped on branch two (10) pipeline red switch valve (4) on road one (9) pipeline, branch one (9) pipeline
With heat exchanger (5) are connected to after branch two (10) pipe influx, heat exchanger (5) is connected to expanding machine (7), generator (8) with it is swollen
Swollen machine (7) is connected by transmission shaft.
2. a kind of expansion power generator air admittance regulation system according to claim 1, it is characterised in that: branch one (9) pipeline
Diameter is greater than branch two (10) pipe diameter, and the latus rectum of on-load valve (3) is greater than the latus rectum of red switch valve (4).
3. a kind of expansion power generator air admittance regulation system according to claim 1, it is characterised in that: air inlet throttle (2)
For switching mode valve, use is electronic, the valve (2) that pneumatically or hydraulically controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020244.4U CN209228417U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator air admittance regulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020244.4U CN209228417U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator air admittance regulation system |
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| CN209228417U true CN209228417U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920020244.4U Active CN209228417U (en) | 2019-01-07 | 2019-01-07 | A kind of expansion power generator air admittance regulation system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441560A (en) * | 2019-01-07 | 2019-03-08 | 贵州电网有限责任公司 | A kind of expansion power generator air admittance regulation system and method |
| CN110410664A (en) * | 2019-09-03 | 2019-11-05 | 贵州电网有限责任公司 | A kind of compressed-air energy storage combined type gas storage can system and its adjusting method |
-
2019
- 2019-01-07 CN CN201920020244.4U patent/CN209228417U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441560A (en) * | 2019-01-07 | 2019-03-08 | 贵州电网有限责任公司 | A kind of expansion power generator air admittance regulation system and method |
| CN109441560B (en) * | 2019-01-07 | 2023-12-29 | 贵州电网有限责任公司 | Air inlet adjusting system and method of expansion generator |
| CN110410664A (en) * | 2019-09-03 | 2019-11-05 | 贵州电网有限责任公司 | A kind of compressed-air energy storage combined type gas storage can system and its adjusting method |
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