CN205135816U - Gas turbine power generation unit oil feeding system - Google Patents
Gas turbine power generation unit oil feeding system Download PDFInfo
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- CN205135816U CN205135816U CN201521007371.9U CN201521007371U CN205135816U CN 205135816 U CN205135816 U CN 205135816U CN 201521007371 U CN201521007371 U CN 201521007371U CN 205135816 U CN205135816 U CN 205135816U
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Abstract
The utility model provides a gas turbine power generation unit oil feeding system, including outdoor and indoor oil feeding system, the oil tank that outdoor oil feeding system connects including the order, the oil pump room of diving supply oil pipe way, manometer, latent oil pump outlet valve, check valve, the filter of cooling down outward, are equipped with the breather pipe on the oil tank and unload oil pipe, and the breather pipe top is equipped with explosion -proof back -fire relief abatvent, indoor oil feeding system is including supplying, go back to the oil pipe way, and indoor confession oil pipe is equipped with the quick action emergency valve on the road in proper order, filters branch road and first hose, and first hose connection gas turbine force (forcing) pump entry returns the oil pipe sweetgum fruit and crosses second hose connection gas turbine oil return opening, and indoor and outdoor confession oil pipe way links to each other, goes back to the oil pipe way and links to each other with the oil tank. The utility model discloses outdoor oil feeding system utilizes the oil tank and dives the oil pump to gas turbine power generation unit fuel feeding, the problem of large -scale generating set's fuel feeding is solved, satisfy the requirement that sets up this generating set in civil buildings simultaneously, indoor oil feeding system had not only guaranteed the fuel feeding quality but also had guaranteed the security of fuel feeding.
Description
Technical field
The utility model belongs to generator set oil supply system field, particularly relates to Gas Turbine Generating Units oil supply system.
Background technique
The more generator oil supply system of domestic and international current use is ordinary diesel oil generator system, its power generally at hundreds of kilowatt to a few megawatt, fuel supply flow rate is generally kilogram per hour to hundreds of at tens kgs/hr.Ordinary diesel oil generator is generally by top petrol tank fuel feeding, and the design condition of oil supply system generally compares mitigation, start slow, flow is little, pressure and discharge stability less demanding, automatic switching procedure has allowed flow, pressure surge.This kind of oil supply system conventional is at present only applicable to common diesel generator oil supply system, and cannot meet the fuel feeding task of Generator Set (more than ten MW class).There are following several respects in its reason: 1. the fuel consumption of Generator Set is large, and volume of fuel tank is often subject to factor of safety restriction, generally should not be greater than 1.0m
3, what this just caused fuel tank arranges the stability of flow effect do not had high flow rate oil supply system.2. the charge oil pressure of Gas Turbine Generating Units has larger difference compared with the charge oil pressure of ordinary diesel oil generator, if the charge oil pressure of certain Gas Turbine Generating Units is at 0.24 ~ 0.42MPa, and the charge oil pressure of ordinary diesel oil generator generally only requires about 3m height oil column (about 0.024MPa).If still adopt top petrol tank, the top petrol tank of gas turbine group needs the discrepancy in elevation of more than 30 meters, and this obviously should not arrange top petrol tank.So oil supply system becomes the problem of those skilled in the art's research in the building how designing a kind of Generator Set.
Model utility content
Problem to be solved in the utility model is to provide a kind of oil supply system being applicable to Generator Set in building.
For solving the problem, the technical solution adopted in the utility model:
A kind of Gas Turbine Generating Units oil supply system, comprises outdoor oil supply system and indoor oil supply system;
Described outdoor oil supply system comprises oil tank, described oil tank is provided with oil-immersed pump, described oil-immersed pump to be linked in sequence pressure gauge, oil-immersed pump outlet valve, safety check, gas-removing filter successively by outdoor oil feed line, described oil tank is provided with breathing pipe, described breathing pipe top is provided with anti-explosion fire-retardant abat-vent, and described oil tank is provided with oil discharge pipe;
Described indoor oil supply system comprises oil feed line and return line, indoor oil feed line is provided with successively Emergeny Cutoff Valves, filters branch road and the first flexible pipe, described first flexible pipe connects gas turbine compression pump entrance, described return line connects gas turbine return opening by the second flexible pipe, the oil feed line of described indoor is connected with the oil feed line of described outdoor, and described return line is connected with described oil tank.
Described first flexible pipe is provided with first for oil return interface valve, blank pipe warning service valve, blank pipe alarm, visor, circulating exhaust valve and second for oil return interface valve by the first flexible pipe to the second flexible pipe direction away from one end of described gas turbine compression pump entrance and described second flexible pipe between the one end away from gas turbine return opening successively, described second is located on described return line for oil return interface valve, and described return line is by being provided with successively the second fuel feeding interface valve to described oil tank for oil return cut-off valve and oil tank scavenger valve.
Also comprise maintenance branch road: the described oil return cut-off valve that supplies supplies one end of oil return interface valve to supply to be provided with the first service valve, safety check, direct-operated regulator and the second service valve successively between oil return interface valve one end away from described first flexible pipe to described first away from described second.
Described filtration branch road comprises coarse filtration filter and essence filters filter.
Described filtration branch road is two-way, two-way filters branch circuit parallel connection and arranges, and every bar filters and to be equipped with thickness between being connected in parallel a little of branch road coarse filtration filter and this end and to filter and switch ball valve, every bar filters branch road essence and filters and to be equipped with thickness between being connected in parallel a little of filter and this end and to filter and switch ball valve, the place that is connected in parallel that two-way filters branch road two ends is equipped with pressure gauge, and described two-way filters branch road two ends and is also parallel with differential pressure inverter.
Described indoor oil feed line comprises two-way oil feed line, the Emergeny Cutoff Valves of every road oil feed line and two-way filter and are equipped with oil feed line between being connected in parallel a little of the coarse filtration filter end of branch road and switch manual ball valve, and one end that every road oil feed line switches manual ball valve near Emergeny Cutoff Valves away from oil feed line evenly arranges two-way pressure monitoring branch road: pressure monitoring branch road described in every road comprises that the pressure be linked in sequence successively becomes service valve, pressure monitoring device, two pressures become outlet valves
Described outdoor oil feed line comprises the first fuel supply line and the second fuel supply line, be respectively indoor two-way oil feed line fuel feeding, described first fuel supply line and be equipped with fuel feeding cut-off valve between described second fuel supply line and described gas-removing filter, the two ends of described gas-removing filter are provided with differential pressure inverter, described gas-removing filter connects fuel tank away from one end of safety check by electrostatically conductive oil-tolerant flexible pipe, filling clearly fuel tap is provided with between described gas-removing filter and described electrostatically conductive oil-tolerant flexible pipe, described outdoor oil feed line is provided with described gas-removing filter joint the safety return-flow pipeline be communicated with described oil tank, described safety return-flow pipeline is provided with safety return-flow valve and safe oil return service valve successively by oil tank, the dipping tube stretching out roof is provided with in described oil tank, one end that described oil discharge pipe is connected with fuel tank is provided with oil discharge metering installation.
The pipeline of described outdoor oil supply system is coated with thermal insulation apparatus.
Described outdoor oil supply system is at least two groups, all connected by connecting valve between the oil tank often organizing outdoor oil supply system, the return line often organizing outdoor oil supply system is all connected with indoor return line by scavenger valve, and the two groups of oil feed lines often organizing outdoor oil supply system are the oil feed line fuel feeding of described indoor oil supply system.
Two groups of outdoor oil supply systems are that the indoor oil supply system of 2-6 group carries out fuel feeding.
The advantage that the utility model has and good effect are: the outdoor oil supply system of (1) the utility model utilizes oil tank and oil-immersed pump and gas-removing filter for Gas Turbine Generating Units fuel feeding; Solve the fuel feeding problem of Generator Set, meet the requirement of the standard that this generator set is set in civil building simultaneously, fill up the blank of domestic and international Generator Set oil supply system; Indoor oil supply system has filters and oil return function, not only ensure that confession oil quality but also can ensure the Security of fuel feeding.
(2) first supply oil return interface valve for oil return interface valve, blank pipe warning service valve, blank pipe alarm, visor, circulating exhaust valve and second and supply the setting of oil return cut-off valve and oil tank scavenger valve, further raising Security, the maintenance of the convenient monitoring to pipeline, warning and blank pipe alarm.
(3) that overhauls branch road arranges convenient maintenance pipeline and pressure adjustment.
(4) filter branch road and comprise coarse filtration and essence filter can be filtered oil product better, improve further the quality of oil.
(5) setting of two-way filtration branch road and switching ball valve prevents the fuel feeding affecting whole system because of a pipe filter fault, for system fuel feeding provides double shield.
(6) two-way of indoor oil feed line arranges and can prevent affecting generator set because of a road oil feed line fault and normally work, and middlely connects arranging of valve and conveniently to switch two-way pipeline;
(7) the differential pressure inverter of outdoor oil supply system can detect the failure conditions such as the blocking of gas-removing filter, improves the reliability of system, convenient maintenance; Gas-removing filter connects fuel tank away from one end of safety check by electrostatically conductive oil-tolerant flexible pipe, is provided with ball valve between gas-removing filter and described electrostatically conductive oil-tolerant flexible pipe, the convenient recovery to end oil in oil tank; Arranging of safety return-flow pipeline is conveniently reclaimed the oil return of oil feed line; The setting party of dipping tube separate oil mass in oil tank, supplement in time.
(8) arranging of thermal insulation apparatus can prevent because low temperature is on the impact of fuel feeding, improves the adaptability of equipment.
(9) two groups of outdoor oil supply system are designed to system and provide double shield, prevent the fuel feeding affecting whole system because of a road fault.
(10) two groups of outdoor oil supply systems organize Gas Turbine Generating Units for the indoor oil supply system fuel feeding of many groups can drive more, enough generating capacities can be ensured, avoid certain generator set fault simultaneously, affect power supply capacity, and then improve the adaptability of whole system.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the detail drawing of in Fig. 1 I.
Fig. 3 is the detail drawing of in Fig. 1 II.
Fig. 4 is the detail drawing of in Fig. 1 III.
Fig. 5 is the detail drawing of in Fig. 1 IV.
Fig. 6 is the detail drawing of in Fig. 1 V.
Fig. 7 is the detail drawing of in Fig. 1 VI.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in figs. 1-7, a kind of Gas Turbine Generating Units oil supply system, comprises outdoor oil supply system and indoor oil supply system;
Described outdoor oil supply system comprises oil tank, described oil tank is provided with oil-immersed pump P-101/P-102, described oil-immersed pump P-101/P-102 by outdoor oil feed line be linked in sequence successively pressure gauge, oil-immersed pump outlet valve BV1102/BV1202, safety check NRV1101/NRV1201, gas-removing filter SRB1101/SRB1201 and, described oil tank T-101/T-102 is provided with breathing pipe, described breathing pipe top is provided with anti-explosion fire-retardant abat-vent M1/M2, and described oil tank T-101/T-102 is provided with oil discharge pipe;
Described indoor oil supply system comprises oil feed line and return line, indoor oil feed line is provided with successively Emergeny Cutoff Valves MOV401/MOV402, filters branch road and the first flexible pipe RG2, described first flexible pipe RG2 connects gas turbine compression pump entrance I, described return line connects gas turbine return opening H by the second flexible pipe RG1, the oil feed line of described indoor is connected with the oil feed line of described outdoor, and described return line is connected with described oil tank T-102/T-101.Solve the fuel feeding problem of Generator Set, meet the requirement of the standard (" high-rise civil building design code " (GB50045 – 95 [version in 2005])) that this generator set is set in civil building simultaneously, fill up the blank of domestic and international Generator Set oil supply system.
Described first flexible pipe RG2 is provided with first for oil return interface valve BV4010/BV3010/BV2010/BV1010 by the first flexible pipe RG2 to the second flexible pipe RG1 direction away from one end of described gas turbine compression pump entrance I and described second flexible pipe RG1 between the one end away from gas turbine return opening H successively, blank pipe warning service valve BV4011/BV3011/BV2011/BV1011, blank pipe alarm LS4001/LS3001/LS2001/LS1001, visor, circulating exhaust valve BV4012/BV3012/BV2012/BV1012 and second is for oil return interface valve BV4013/BV3013/BV2013/BV1013, described second is located on described return line for oil return interface valve BV4013/BV3013/BV2013/BV1013, described return line is by being provided with successively the second fuel feeding interface valve BV4013/BV3013/BV2013/BV1013 to described oil tank T-102/T-101 for oil return cut-off valve BV4003/BV3003/BV2003/BV1003 and oil tank scavenger valve BV1206/BV1106.
Also comprise maintenance branch road: the described oil return cut-off valve BV4003/BV3003/BV2003/BV1003 that supplies supplies one end of oil return interface valve BV4013/BV3013/BV2013/BV1013 to supply to be provided with the first service valve BV4009/BV3009/BV2009/BV1009 successively between oil return interface valve BV4010/BV3010/BV2010/BV1010 one end away from described first flexible pipe RG2 to described first away from described second, safety check NRV4001/NRV3001/NRV2001/NRV1001, direct-operated regulator F4/F3/F2/F1 and the second service valve BV4008/BV3008/BV2008/BV1008.
Described filtration branch road comprises coarse filtration filter
(CL4001/CL3001/CL2001/CL1001)/(CL4002/CL3002/CL2002/CL1002)
Filter is filtered with essence
(JL4001/JL3001/JL2001/JL1001)/(JL4002/JL3002/JL2002/JL1002)。
Described filtration branch road is two-way, two-way filters branch circuit parallel connection and arranges, and every bar filters and to be equipped with thickness between being connected in parallel a little of branch road coarse filtration filter (CL4001/CL3001/CL2001/CL1001)/(CL4002/CL3002/CL2002/CL1002) and this end and to filter and switch ball valve (BV4004/BV3004/BV2004/BV1004)/(BV4005/BV3005/BV2005/BV1005), every bar filters branch road essence and filters and to be equipped with thickness between being connected in parallel a little of filter (JL4001/JL3001/JL2001/JL1001)/(JL4002/JL3002/JL2002/JL1002) and this end and to filter and switch ball valve (BV4006/BV3006/BV2006/BV1006)/(BV4007/BV3007/BV2007/BV1007), the place that is connected in parallel that two-way filters branch road two ends is equipped with pressure gauge PI, described two-way filters branch road two ends and is also parallel with differential pressure inverter Pdt01/Pdt02/Pdt03/Pdt04.
Further, normally work to prevent affecting generator set because of a road oil feed line fault, described indoor oil feed line comprises two-way oil feed line, the Emergeny Cutoff Valves MOV101 of every road oil feed line, MOV102/MOV201, MOV202/MOV301, MOV302/MOV401, MOV402 and two-way filter and are equipped with oil feed line between being connected in parallel a little of the coarse filtration filter end of branch road and switch manual ball valve BV1002, BV1001/BV2002, BV2001/BV3002, BV3001/BV4002, BV4001, every road oil feed line is near Emergeny Cutoff Valves MOV101, MOV102/MOV201, MOV202/MOV301, MOV302/MOV401, MOV402 switches manual ball valve BV1002 away from oil feed line, BV1001/BV2002, BV2001/BV3002, BV3001/BV4002, one end of BV4001 evenly arranges two-way pressure monitoring branch road: pressure monitoring branch road described in every road comprises the pressure be linked in sequence successively and becomes service valve (BV001, BV003/BV002, BV004), pressure monitoring device (PT101, PT201/PT102, PT202), two pressures become outlet valve GV002, GV003/GV006, GV007/GV004, GV005/GV008, GV009.
Described outdoor oil feed line comprises the first fuel supply line and the second fuel supply line, be respectively indoor two-way oil feed line fuel feeding, described first fuel supply line and be equipped with fuel feeding cut-off valve BV1103 between described second fuel supply line and described gas-removing filter SR1101/SR1201, BV1104/BV1203, BV1204, the two ends of described gas-removing filter SR1101/SR1201 are provided with differential pressure inverter Pdt05/Pdt06, further, conveniently to the recovery of end oil in oil tank 15, described gas-removing filter SR1101/SR1201 connects fuel tank R/S away from one end of safety check NRV1101/NRV1201 by electrostatically conductive oil-tolerant flexible pipe, filling clearly fuel tap BV1105/BV1205 is provided with between described gas-removing filter SR1101/SR1201 and described electrostatically conductive oil-tolerant flexible pipe, described outdoor oil feed line is provided with described gas-removing filter SR1101/SR1201 joint the safety return-flow pipeline be communicated with described oil tank T-101/T-102, described safety return-flow pipeline is provided with by oil tank T-101/T-102 safety return-flow valve PSV1101/PSV1201 and safe oil return service valve GV1101/GV1201 successively, conveniently the oil return of oil feed line is reclaimed, further, conveniently understand the oil mass in oil tank T-101/T-102, supplement in time, in described oil tank T-101/T-102, be provided with the dipping tube stretching out oil tank T-101/T-102 top, further, in order to prevent fuel feeding unit from giving short weight, cause the loss with oily unit, one end that described oil discharge pipe is connected with fuel tank is provided with oil discharge metering installation.
The setting of each differential pressure inverter, can detect the failure conditions such as the blocking of the device corresponding with each differential pressure inverter, improves the reliability of system, convenient maintenance.
Further, in order to prevent because low temperature is on the impact of fuel feeding, improve the adaptability of equipment, the pipeline of described outdoor oil supply system is coated with thermal insulation apparatus.The thermal insulation apparatus of the present embodiment adopts electric tracing thermal insulation layer.Because electrical tracing pipeline homogeneous temperature, can not be overheated, safe and reliable; Installation and maintenance are easy; Install and operating cost low; Be convenient to automatic management; During batch operation, heat up and start fast; Non-environmental-pollution; In the longest use length selecting ribbon heater, cut off arbitrarily use, overlap, intersection etc. use need not temperature control, its can automatic control, certainly limit temperature.
Described outdoor oil supply system is at least two groups, all connected by connecting valve GV0001 between the oil tank often organizing outdoor oil supply system, the return line often organizing outdoor oil supply system is all connected with indoor return line by scavenger valve BV1106/BV1206, and the two groups of oil feed lines often organizing outdoor oil supply system are the oil feed line fuel feeding of described indoor oil supply system.
Two groups of outdoor oil supply systems are that the indoor oil supply system of 2-6 group carries out fuel feeding.Two groups in the present embodiment outdoor oil supply systems are that 4 groups of indoor oil supply systems carry out fuel feeding, drive 4 Gas Turbine Generating Units.
Oil-immersed pump " hot standby " mode is have employed in the design, i.e. 2nd (for subsequent use) oil-immersed pump also variable frequency starting after the 1st oil-immersed pump is working properly, and then work oil-immersed pump and oil-immersed pump for subsequent use progressively realize same frequency work, if wherein certain oil-immersed pump breaks down, oil feed line pressure there will be small size decline (still in the scope of being allowed to), and monitored automatically, control system will progressively improve the frequency of okperation of oil-immersed pump for subsequent use to keep flow, pressure stability.This process is oil-immersed pump " hot standby ".
The automatic switchover of so-called oil-immersed pump is that monitored automatically system passes through monitoring oil-immersed pump operating conditions and pipeline road pressure, once occur that oil-immersed pump fault or pressure reduce steady to ensure fuel feeding for the frequency progressively promoting oil-immersed pump for subsequent use.In buried sleeping tank list tank independent operating situation, when there is certain oil tank level liquid level low lower than the limit, automatically will stop corresponding oil-immersed pump, have the oil-immersed pump of oil tank to work until liquid level is lower than the low liquid level of the limit.When the liquid level in oil tank is low to moderate setting value, system alert can carry out after-teeming oil to oil tank, in order to realize online oiling, and this engineering design pumping emptying and metering system (oil discharge metering installation).
Self-erecting type pressure regulating system is arranged mainly for system starting process, in system starting process oil-immersed pump self-starting normal to operating mode between time period in, it is still zero that combustion turbine system not yet starts normal fuel injection flow, but now oil-immersed pump operating mode should as far as possible close to normal flow rate and normal pressure, after Gas Turbine Generating Units startup gas turbine is normal with oily flow, oil return branch road cuts off to ensure normal fuel injection by Self-operated pressure regulating system.The function and significance of Self-operated pressure regulating system to oil supply system start-up course is great.In addition, in running, also control action can be had to loine pressure.
In order to meet the needs of some special occasions, Gas Turbine Generating Units to oil supply system also require to have starting-up response must rapidly, fuel feeding reliability must high, round-the-clock fuel feeding mission must be possessed the feature such as to stand fast at.For so strict fuel feeding requirement, in the design, additionally use some other measure.These measures mainly comprise oil feed line for subsequent use, pipeline leakage is reported to the police, in pipeline air scavenge and the oil-filled status monitoring of pipeline with blank pipe is reported to the police, plugged filter is reported to the police and filter is for subsequent use, remain oil plant monitor and supply time is calculated, system self-starting under liquid level monitoring and warning, online Unloading Metering, dispatch from foreign news agency dead electricity situation, automatical control system two-way standby, the perfect electrical tracing thermostatically control etc. of pair to overlap standby, pipeline mutually of measuring supervisory system, automatic control system mutually.These measures all substantially increase the reliability of native system.
Oil-immersed pump control procedure illustrates:
1. start 1 frequency conversion oil-submersible pump and make rapidly the voltage stabilizing of oil supply pipeline pressure to 0.41MPa, under the effect of direct-operated regulator, oil supply pipeline and generator set jointing pressure will be adjusted to 0.33MPa ~ 0.40MPa scope;
2. gas turbine control system detects that jointing charge oil pressure meets interface condition (0.24MPa ~ 0.42MPa) and starts Gas Turbine Generating Units, Gas Turbine Generating Units carry compression pump running after oil supply pipeline oil pressure can decline to some extent, therefore oil-immersed pump frequency-changing control system need according to fuel feeding mains pressure change progressively promote frequency make fuel feeding mains pressure maintain 0.45MPa (allowed band 0.4MPa ~ 0.5MPa);
3. after the 1st oil-immersed pump working stability, variable frequency starting the 2nd oil-immersed pump for subsequent use, and make progressively to realize identical work and pose, make mains pressure maintain 0.45MPa (allowed band 0.4MPa ~ 0.5MPa) by frequency-changing control system;
4., when certain oil-immersed pump emerged in operation catastrophic failure, the working load of another oil-immersed pump need be promoted rapidly by frequency-changing control system, remain that main charge oil pressure maintains 0.45MPa (allowed band 0.4MPa ~ 0.5MPa);
5. when there being 1 oil-immersed pump to occur operating at full capacity, control system point out 1 oil-immersed pump operate at full capacity (when this engineering multiple stage generator set do not go up complete before, there will not be the condition needing oil-immersed pump to operate at full capacity in theory, unless there is pipeline fault or leakage); When operating at full capacity all appears in 2 oil-immersed pumps, strong warning, prompting " occurring pipeline fault or pipe leakage " is (because 1 oil-immersed pump can meet how cover generator set works in this engineering simultaneously, should there is not the condition that double pump is all operated at full capacity, unless there is pipeline fault or leakage).
Filter pressure difference alarm procedure illustrates:
1. coarse filtration and essence filter normal overall presure drop under normal circumstances≤100kPa, but along with increasing of impurity on filter screen, overall presure drop can constantly increase, the requirement of gas turbine fuel feeding interface condition is met in order to make oil supply system, the overall presure drop that should control coarse filtration and essence filter is less than 150kPa, when coarse filtration entrance and essence leach differential pressure between mouth more than 150kPa alarm, then need coarse filtration for subsequent use, essence filter to come into operation, and the filter that transfinites of tissue cleaning pressure drop as early as possible.
2. the pressure drop of gas-removing filter under normal circumstances≤40kPa, but along with increasing of impurity on filter screen, overall presure drop can constantly increase, and when gas-removing filter pressure drop is greater than 80kPa, alarm need be cleared up gas-removing filter (SRB1101 or SRB1201) in the recent period.
The control of anti-explosion electric ball valve on each fuel feeding branch pipe(tube):
1. answer the requirement of " Code for fire protection design of high rise buildings " on each branch road oil supply pipeline, to be provided with anti-explosion electric ball valve (total travel 9s ~ 12s switching time) as Emergeny Cutoff Valves, when there is the urgency such as fire, pipe leakage, closed by the long-range closedown of PLC control system or on-site manual.
Direct-operated regulator (K type) Stress control:
1. upstream pressure level pressure 365kPa, authorized pressure control scope 330kPa ~ 400kPa, the pressure maximum that may occur before valve before pressure regulation is 650kPa, and downstream pressure is maximum is about 100kPa, and direct-operated regulator peak rate of flow is about 6m
3/ h (before mainly occurring in gas turbine powered generator startup), gas turbine powered generator wishes that the flow through direct-operated regulator is down to 0 after starting under normal circumstances.
Process description one:
1. for making oil supply system can keep supplying oil product at the appointed time, oil supply pipeline need keep full oil condition, and whether oil supply pipeline is in full oil condition is checked by pipeline viewing mirror.
2. the circulating exhaust valve arranged between oil supply pipeline end and oil returning tube needs to be in normally off under normal circumstances; Open when carrying out the oil-filled exhaust of pipeline or pipeline oil product circulation renewal rewards theory, oil-filled or oil product cycling is complete need be recovered normally off.
3. a wherein road oil supply system of outdoor oil supply system two of comprising are arranged side by side oil supply pipeline A, B all can meet separately the requirement of multiple stage gas turbine powered generator unit fuel feeding, can be for subsequent use each other; When wherein certain root oil supply pipeline fault, its first and end cut-off valve need be closed.
4. the cut-off valve (containing gas turbine scavenger valve and oil tank scavenger valve) on oil returning tube all needs to be in normally open under normal circumstances; When oil tank or gas turbine need maintenance, close the oil return cut-off valve of its correspondence.Or according to the mode of operation of valve on the requirement determination oil returning tube of gas turbine producer.
5. the cut-off valve (GV0001) between two oil tanks on connecting tube needs to be in normally open under normal circumstances; When certain oil tank needs to close oil tank connecting valve when maintenance or clear tank, and close and need overhaul oil-immersed pump outlet fuel feeding cut-off valve corresponding to oil tank and scavenger valve corresponding to this oil tank; When oil tank maintenance or clear tank complete, oil tank is communicated with control valve must not standard-sized sheet immediately, need adopt crack mode that the liquid level in two oil tanks is slowly balanced, then need oil tank connecting valve standard-sized sheet after liquid level equilibrium.
6. for preventing the diesel oil in outdoor oil supply pipeline, filter on the ground from solidifying in the winter time or analysing wax, need winter to use-10# diesel oil (flash-point should do not used lower than the oil product of 55 DEG C, because not meeting the requirement of high-rise building design fire regulation 4.1.3 bar), when meeting with cold snap (temperature is lower than-5 DEG C), need ground oil supply pipeline electric tracer heating system outside opening chamber.
7. outdoor pipeline section, filter, valve etc. on the ground adopt pipe insulation and electric tracer heating system to tackle severe cold weather.
8. fuel oil quality need meet the quality requirement of gas turbine powered generator to fuel oil, and need make regular check on and detect the mass change of long-term storage oil product, when the qualified surplus of quality index is not enough, need change oil product by the outer defeated technique of oil tank oil; In addition for keeping the oil quality in oil supply pipeline regularly need carry out oil product cycling to upgrade the trapped fuel in pipeline.
Process description two:
1. oil product gravity flow is unloaded flow process: fuel tank → electrostatically conductive oil-tolerant flexible pipe → Sealed Unloading mouth → oil tank;
2. oil metering is unloaded flow process: fuel tank → electrostatically conductive oil-tolerant flexible pipe → skid oil discharge metering installation → electrostatically conductive oil-tolerant flexible pipe → Sealed Unloading mouth → oil tank;
3. oil tank oil transportation flow process: oil tank → frequency conversion oil-submersible pump → generator carries main compression pump;
4. generator oil return flow process: generator system → oil return gravity flow → oil tank;
5. the oil-filled exhaust of oil supply pipeline: oil tank → frequency conversion oil-submersible pump → fuel supply line → circulating exhaust ball valve (opening) return tube → oil tank → breathing pipe → air;
6. pipeline oil product circulation: oil tank → frequency conversion oil-submersible pump → fuel supply line → circulating exhaust ball valve (opening) return tube → oil tank;
7. oil tank oil is outer defeated: oil tank → frequency conversion oil-submersible pump → electrostatically conductive oil-tolerant flexible pipe (being inserted to fuel tank tank bottom) → fuel tank outward transport process.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (10)
1. a Gas Turbine Generating Units oil supply system, is characterized in that: comprise outdoor oil supply system and indoor oil supply system;
Described outdoor oil supply system comprises oil tank, described oil tank is provided with oil-immersed pump, described oil-immersed pump to be linked in sequence pressure gauge, oil-immersed pump outlet valve, safety check, gas-removing filter successively by outdoor oil feed line, described oil tank is provided with breathing pipe, described breathing pipe top is provided with anti-explosion fire-retardant abat-vent, and described oil tank is provided with oil discharge pipe;
Described indoor oil supply system comprises oil feed line and return line, indoor oil feed line is provided with successively Emergeny Cutoff Valves, filters branch road and the first flexible pipe, described first flexible pipe connects gas turbine compression pump entrance, described return line connects gas turbine return opening by the second flexible pipe, the oil feed line of described indoor is connected with the oil feed line of described outdoor, and described return line is connected with described oil tank.
2. Gas Turbine Generating Units oil supply system according to claim 1, it is characterized in that: described first flexible pipe is provided with first for oil return interface valve by the first flexible pipe to the second flexible pipe direction away from one end of described gas turbine compression pump entrance and described second flexible pipe between the one end away from gas turbine return opening successively, blank pipe warning service valve, blank pipe alarm, visor, circulating exhaust valve and second is for oil return interface valve, described second is located on described return line for oil return interface valve, described return line is by being provided with successively the second fuel feeding interface valve to described oil tank for oil return cut-off valve and oil tank scavenger valve.
3. Gas Turbine Generating Units oil supply system according to claim 2, is characterized in that: also comprise maintenance branch road: the described oil return cut-off valve that supplies supplies one end of oil return interface valve to supply to be provided with the first service valve, safety check, direct-operated regulator and the second service valve successively between oil return interface valve one end away from described first flexible pipe to described first away from described second.
4. Gas Turbine Generating Units oil supply system according to claim 3, is characterized in that: described filtration branch road comprises coarse filtration filter and essence filters filter.
5. Gas Turbine Generating Units oil supply system according to claim 4, it is characterized in that: described filtration branch road is two-way, two-way filters branch circuit parallel connection and arranges, and every bar filters and to be equipped with thickness between being connected in parallel a little of branch road coarse filtration filter and this end and to filter and switch ball valve, every bar filters branch road essence and filters and to be equipped with thickness between being connected in parallel a little of filter and this end and to filter and switch ball valve, the place that is connected in parallel that two-way filters branch road two ends is equipped with pressure gauge, and described two-way filters branch road two ends and is also parallel with differential pressure inverter.
6. Gas Turbine Generating Units oil supply system according to claim 5, it is characterized in that: described indoor oil feed line comprises two-way oil feed line, the Emergeny Cutoff Valves of every road oil feed line and two-way filter and are equipped with oil feed line between being connected in parallel a little of the coarse filtration filter end of branch road and switch manual ball valve, one end that every road oil feed line switches manual ball valve near Emergeny Cutoff Valves away from oil feed line evenly arranges two-way pressure monitoring branch road: pressure monitoring branch road described in every road comprises the pressure be linked in sequence successively and becomes service valve, pressure monitoring device, two pressures become outlet valve.
7. Gas Turbine Generating Units oil supply system according to claim 6, it is characterized in that: described outdoor oil feed line comprises the first fuel supply line and the second fuel supply line, be respectively indoor two-way oil feed line fuel feeding, described first fuel supply line and be equipped with fuel feeding cut-off valve between described second fuel supply line and described gas-removing filter, the two ends of described gas-removing filter are provided with differential pressure inverter, described gas-removing filter connects fuel tank away from one end of safety check by electrostatically conductive oil-tolerant flexible pipe, filling clearly fuel tap is provided with between described gas-removing filter and described electrostatically conductive oil-tolerant flexible pipe, described outdoor oil feed line is provided with described gas-removing filter joint the safety return-flow pipeline be communicated with described oil tank, described safety return-flow pipeline is provided with safety return-flow valve and safe oil return service valve successively by oil tank, the dipping tube stretching out roof is provided with in described oil tank, one end that described oil discharge pipe is connected with fuel tank is provided with oil discharge metering installation.
8. Gas Turbine Generating Units oil supply system according to claim 7, is characterized in that: the pipeline of described outdoor oil supply system is coated with thermal insulation apparatus.
9. Gas Turbine Generating Units oil supply system according to claim 8, it is characterized in that: described outdoor oil supply system is at least two groups, all connected by connecting valve between the oil tank often organizing outdoor oil supply system, the return line often organizing outdoor oil supply system is all connected with indoor return line by scavenger valve, and the two groups of oil feed lines often organizing outdoor oil supply system are the oil feed line fuel feeding of described indoor oil supply system.
10. Gas Turbine Generating Units oil supply system according to claim 9, is characterized in that: two groups of outdoor oil supply systems are that the indoor oil supply system of 2-6 group carries out fuel feeding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521007371.9U CN205135816U (en) | 2015-11-27 | 2015-11-27 | Gas turbine power generation unit oil feeding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521007371.9U CN205135816U (en) | 2015-11-27 | 2015-11-27 | Gas turbine power generation unit oil feeding system |
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| CN205135816U true CN205135816U (en) | 2016-04-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798951A (en) * | 2018-06-08 | 2018-11-13 | 上海恒锦动力科技有限公司 | Distributed solenoid valve integrates data center's oil supply system of oil pump |
| CN110589748A (en) * | 2019-09-29 | 2019-12-20 | 中国石油集团渤海钻探工程有限公司井下技术服务分公司 | Centralized oil supply system |
-
2015
- 2015-11-27 CN CN201521007371.9U patent/CN205135816U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798951A (en) * | 2018-06-08 | 2018-11-13 | 上海恒锦动力科技有限公司 | Distributed solenoid valve integrates data center's oil supply system of oil pump |
| CN110589748A (en) * | 2019-09-29 | 2019-12-20 | 中国石油集团渤海钻探工程有限公司井下技术服务分公司 | Centralized oil supply system |
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