CN205503197U - Novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant - Google Patents
Novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant Download PDFInfo
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- CN205503197U CN205503197U CN201620250767.4U CN201620250767U CN205503197U CN 205503197 U CN205503197 U CN 205503197U CN 201620250767 U CN201620250767 U CN 201620250767U CN 205503197 U CN205503197 U CN 205503197U
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- fuel oil
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Abstract
The utility model discloses a novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant sets up the air purge set at fire resistant oil oil tank (201) top, the air purge set includes air compressor (202), gas bomb (203), pressure regulating filter (207) and hollow fiber membrane subassembly (208) that connect gradually through the pipeline, gas bomb (203) with be equipped with air valve (206) on the pipeline between pressure regulating filter (207), the pipeline of giving vent to anger of hollow fiber membrane subassembly (208) feeds through extremely the top of fire resistant oil oil tank (201), the top of fire resistant oil oil tank (201) still is equipped with gas vent (211), gas vent (211) with the air purge set sets up relatively. The utility model provides a novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant, simple structure, convenient operation, it is with low costs.
Description
Technical field
This utility model relates to conveying equipment technical field, particularly to a kind of electro-hydraulic regulation of power plant steam turbine
The novel water trap of Anti-fuel Oil System.
Background technology
EH oil is the important medium of power plant steam turbine electrohydaulic speed governor system, the direct shadow of stability of EH oil
Ring operational reliability and the safety of governing system.Fire resistant oil is made up of phosphate ester, appearance transparent, uniformly,
Fresh oil slightly in faint yellow, deposit-free, volatility is low, and wear resistence is good, good security, and physical property is stable,
Fire resistant oil used by power plant electrohydraulic control system is the pure phosphoric acid fat liquid of a kind of fire-resistant, and flame retardancy is phosphoric acid
One of the most prominent characteristic of ester, the most also can burn, but its not propagating flame, or energy after catching fire
Quickly from going out, phosphate ester has high thermo oxidative stability.
Owing to EH oil is made up of phosphate ester, according to physics and the chemical characteristic of phosphate ester, it is easily
Actively adsorbing the moisture in air, moisture can be with Free water, emulsified water, three kinds of dissolving water in EH oil
State exists.Research according to expert shows, is that phosphate ester produces mainly urging of acid by hydrolysis water
Agent, the hydrolysis of phosphate ester starts when moisture is more than 300ppm to accelerate, ASTM D6304
Require that moisture content to control at below 500ppm (before Standard is less than the 1000ppm more than ten years especially
Standard), substantial amounts of strong acid and weak acid can be produced after phosphate fire-resistant oil, then cause the acid number of EH oil
Raise.It is not linear that hydrolysis produces the amount of acid, and is as the difference of acid number and different: height
Acid number can cause hydrolysis (self-catalyzed reaction) faster.Therefore the control of moisture content is to control acid number
A very important ring, need suppressed from source.
Seeing Fig. 1, current most power plant is all configured with online fire resistant oil water trap, uses true
Empty except the principle of water, vaccum fuel tank 102 sets up negative pressure, fire resistant oil fuel tank by a vacuum pump 104
With oil film form in fire resistant oil in 101 is inhaled into vaccum fuel tank 102 by pipeline and by nozzle 103
Spray, be much smaller than water vaporization at normal atmospheric pressure owing to polluting the pressure for vaporization of water in oil film under negative pressure
Pressure, therefore in vaccum fuel tank 102, oil film water during spraying gasifies in a large number and is taken out by vacuum pump 104
Suction, to air, is communicated to fire resistant oil fuel tank 101, by the road at vaccum fuel tank bottom vaccum fuel tank 102
Pipeline bottom 102 and between fire resistant oil fuel tank 101 is provided with gear pump 105 and filter 106, very
Fire resistant oil bottom empty fuel tank 102 is drained to fire resistant oil fuel tank 101 under gear pump 105 acts on.From
Following shortcoming it is primarily present from the point of view of the design of this cover system and service condition:
(1) condition that puts into operation is proposed clear and definite regulation for oil temperature, viscosity etc., and system needs stable
The control system and the relevant protective condition that run auxiliary are more, and once certain condition is unsatisfactory for being easy for causing
Chaser, it is therefore desirable to professional periodically carries out checking ruuning situation, adjusts vacuum, oil tank liquid level etc.；
(2) needing after putting into operation to put into certain maintenance cost, vacuum pump needs periodic oil change, in system
Filter use the cycle shorter etc.；
(3) rotatable parts are more, and abrasion cannot be avoided, and occur that leakage problems is difficult in institute after life-time service
Exempt from；
(3) system electromechanical degree is higher, and once breaking down to put into operation needs specialized factory to arrange
Looking into, the defect elimination cycle is longer.
Summary of the invention
It is novel except water that this utility model purpose is to provide a kind of power plant steam turbine electro-hydraulic regulation Anti-fuel Oil System
Device, for reducing the moisture in fire resistant oil, it is ensured that the normal work of power plant steam turbine electrohydaulic speed governor system.
Based on the problems referred to above, the technical scheme that this utility model provides is:
The novel water trap of power plant steam turbine electro-hydraulic regulation Anti-fuel Oil System, is arranged at fire resistant oil top of oil-tank
Air purge set, described air purge set includes air compressor, the storage being sequentially connected with by pipeline
Gas cylinder, pressure regulation filter and hollow fiber film assembly, between described gas bomb and described pressure regulation filter
Pipeline is provided with air door, and the outlet pipe of described hollow fiber film assembly is communicated to described fire resistant oil oil
The top of case, the top of described fire resistant oil fuel tank is additionally provided with air vent, and described air vent blows with described air
Sweeping device is oppositely arranged.
Further, the pipeline between described hollow fiber film assembly and described fire resistant oil fuel tank is provided with sky
Air-flow gauge.
Further, the pipeline between described hollow fiber film assembly and described fire resistant oil fuel tank is provided with dew
Point instrument.
Further, described air vent is provided with exhaustor, and described exhaustor is connected to air filter.
Further, described gas bomb top is provided with Pressure gauge, and the bottom of described gas bomb is provided with atmospheric valve.
Compared with prior art, the utility model has the advantages that:
(1) the technical solution of the utility model is used, in compressed air being caused after pressure regulation filter
Hollow fiber membrane module, when gas flows through hollow fiber membrane separator, water is prone to through hollow-fibre membrane
It is removed, thus obtains the air being dried, the dew point of water in compressed air is down to below-40C, this
Time air in moisture content be 126.8ppm, being scaled absolutely degree humidity by 20 DEG C is 0.09g/m3, equally
Contrast humidity 51.5g/m of degree absolutely under 20 DEG C of humid air saturations3, this air is caused fire resistant oil oil
Box top purges, if now the water content of fire resistant oil exceedes the moisture content of ullage air, then vapour
Water balance is broken, and the moisture in fluid can be filled to air with the form of evaporation, until humid air reaches
To saturation, owing to this covering device is continuously input dry air and is drained into greatly by air vent
Gas, therefore can keep ullage air ambient to run under low-down damp condition, therefore for a long time
Moisture in fluid can also constantly be evaporated up to recover the poised state between soda pop；
(2) using the technical solution of the utility model, this apparatus structure is simple, easy for installation, fault
Rate is low, and maintenance cost is low, and service life is long.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, embodiment will be described below
The accompanying drawing used required in is briefly described, and the accompanying drawing in describing below is the most of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that in prior art, the structure of power plant steam turbine electro-hydraulic regulation Anti-fuel Oil System water trap is shown
It is intended to；
Fig. 2 is that this utility model power plant steam turbine electro-hydraulic regulation novel water trap of Anti-fuel Oil System is implemented
The structural representation of example；
Wherein:
101, fire resistant oil fuel tank；102, vaccum fuel tank；103, nozzle；104, vacuum pump；105、
Gear pump；106, filter；
201, fire resistant oil fuel tank；202, air compressor；203, gas bomb；204, Pressure gauge；205、
Atmospheric valve；206, air door；207, pressure regulation filter；208, hollow fiber film assembly；209、
Mass air flow sensor；210, dew point hygrometer；211, air vent；212, air filter.
Detailed description of the invention
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are
For illustrating that this utility model is not limited to limit scope of the present utility model.The enforcement used in embodiment
Condition can do adjustment further according to the condition of concrete producer, not marked implementation condition usually routine
Condition in experiment.
See Fig. 2, for structural representation of the present utility model, it is provided that a kind of electro-hydraulic regulation of power plant steam turbine
The novel water trap of Anti-fuel Oil System, is provided with air purge set bottom fire resistant oil fuel tank 201, this sky
Air compressor 202 that air-blowing sweeping device includes being sequentially connected with by pipeline, gas bomb 203, pressure regulation
Filter 207 and hollow fiber film assembly 208, the top of gas bomb 203 is provided with Pressure gauge 204, gas storage
The bottom of bottle 203 is provided with atmospheric valve 205, the pipeline between gas bomb 203 and pressure regulation filter 207
Being provided with air door 206, the outlet pipe of hollow fiber film assembly 208 is communicated to fire resistant oil fuel tank 201
Top, be additionally provided with air vent 211 at the top of fire resistant oil fuel tank 201, this air vent 211 and air
Blow device is oppositely arranged.
In order to optimize implementation result of the present utility model further, in hollow fiber film assembly 208 and fire-resistant
Pipeline between oil fuel tank 201 is provided with mass air flow sensor 209 so that controlling the flow of purging air.
It is additionally provided with dew point hygrometer on pipeline between hollow fiber film assembly 208 and fire resistant oil fuel tank 201
210 for monitoring the dew point of air.
In this example, being provided with exhaustor at air vent 211, exhaustor is connected to air filter 212, should
Air filter 212 is for filtering contaminants, it is to avoid pollutants in air enters into fire resistant oil fuel tank 201
In.
Examples detailed above only for technology of the present utility model design and feature are described, its object is to allow and is familiar with this
The personnel of item technology will appreciate that content of the present utility model and implement according to this, can not limit this reality with this
With novel protection domain.All equivalent transformations done according to this utility model spirit or modification, all
Should contain within protection domain of the present utility model.
Claims (5)
1. the novel water trap of power plant steam turbine electro-hydraulic regulation Anti-fuel Oil System, it is characterised in that: anti-
Fuel oil box (201) top arranges air purge set, and described air purge set includes passing through pipeline
Air compressor (202), gas bomb (203), pressure regulation filter (207) and the hollow being sequentially connected with
Fiber film component (208), the pipe between described gas bomb (203) and described pressure regulation filter (207)
Road is provided with air door (206), and the outlet pipe of described hollow fiber film assembly (208) is communicated to
The top of described fire resistant oil fuel tank (201), the top of described fire resistant oil fuel tank (201) is additionally provided with aerofluxus
Mouth (211), described air vent (211) is oppositely arranged with described air purge set.
Power plant steam turbine the most according to claim 1 electro-hydraulic regulation Anti-fuel Oil System is novel except water dress
Put, it is characterised in that: described hollow fiber film assembly (208) and described fire resistant oil fuel tank (201) it
Between pipeline be provided with mass air flow sensor (209).
Power plant steam turbine the most according to claim 1 electro-hydraulic regulation Anti-fuel Oil System is novel except water dress
Put, it is characterised in that: described hollow fiber film assembly (208) and described fire resistant oil fuel tank (201) it
Between pipeline be provided with dew point hygrometer (210).
Power plant steam turbine the most according to claim 1 electro-hydraulic regulation Anti-fuel Oil System is novel except water dress
Put, it is characterised in that: described air vent (211) is provided with exhaustor, and described exhaustor is connected to air
Filter (212).
Power plant steam turbine the most according to claim 1 electro-hydraulic regulation Anti-fuel Oil System is novel except water dress
Put, it is characterised in that: described gas bomb (203) top is provided with Pressure gauge (204), described gas bomb
(203) bottom is provided with atmospheric valve (205).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620250767.4U CN205503197U (en) | 2016-03-29 | 2016-03-29 | Novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620250767.4U CN205503197U (en) | 2016-03-29 | 2016-03-29 | Novel water trap of anti fuel oil system of steam turbine electro -hydraulic control of power plant |
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| CN205503197U true CN205503197U (en) | 2016-08-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195039A (en) * | 2020-09-29 | 2021-01-08 | 核电运行研究(上海)有限公司 | Scavenging method is analysed and is removed aqueous vapor system in fire resistant oil |
| CN114645740A (en) * | 2020-12-18 | 2022-06-21 | 江苏核电有限公司 | Device and method for removing water and reducing acid value by micro-positive pressure additionally arranged on fire-resistant oil tank |
-
2016
- 2016-03-29 CN CN201620250767.4U patent/CN205503197U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112195039A (en) * | 2020-09-29 | 2021-01-08 | 核电运行研究(上海)有限公司 | Scavenging method is analysed and is removed aqueous vapor system in fire resistant oil |
| CN114645740A (en) * | 2020-12-18 | 2022-06-21 | 江苏核电有限公司 | Device and method for removing water and reducing acid value by micro-positive pressure additionally arranged on fire-resistant oil tank |
| CN114645740B (en) * | 2020-12-18 | 2023-11-14 | 江苏核电有限公司 | Device and method for adding micro-positive pressure water removal and acid value reduction into anti-fuel oil tank |
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