CN103611451A - Device for adding fuel additives to steam-injection boiler and adding method - Google Patents

Device for adding fuel additives to steam-injection boiler and adding method Download PDF

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Publication number
CN103611451A
CN103611451A CN201310572285.1A CN201310572285A CN103611451A CN 103611451 A CN103611451 A CN 103611451A CN 201310572285 A CN201310572285 A CN 201310572285A CN 103611451 A CN103611451 A CN 103611451A
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China
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fuel
fuel additive
medicine
chest
injection boiler
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CN201310572285.1A
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CN103611451B (en
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张红朋
许宝燕
李娟娟
马庆
许玲彬
邵恒玉
陈楠
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Petrochina Co Ltd
China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Abstract

The invention provides a device for adding fuel additives to a steam-injection boiler and an adding method. The adding device comprises an additive box, a proportioning pump, a stirrer and a connecting pipeline, wherein the additive box is of a box body structure and comprises an additive adding port and an additive discharging port; the stirrer passes through an opening formed in the top part of the additive box; a control part of the stirrer is positioned outside the additive box and is fixedly connected with the additive box at the opening in the top part of the additive box; blades and a connecting shaft of the stirrer are positioned on the inner side of the additive box; the proportioning pump comprises an input port and an output port; the input port of the proportioning pump is connected with the additive discharging port of the additive box; the output port of the proportioning pump is connected with one end of the connecting pipeline; the other end of the connecting pipe is connected with the steam-injection boiler. The adding device and the adding method provided by the invention have the advantages that a manual adding mode is replaced, so that the technical problem that non-uniform mixing of fuel and the fuel additives is easily caused due to the manual adding mode is solved, the workload of operators is also reduced and the use efficiency of the fuel additives is improved.

Description

A kind of injection boiler fuel additive-adding device and adding method
Technical field
The present invention relates to heavy crude heat extraction field, particularly a kind of injection boiler fuel additive-adding device and adding method.
Background technology
Oil is present among the oil field of natural formation, and its production technique is difference along with the difference of oil-field structure, base oil properties.Crude oil medium pitch gum level is high, and the oil that wax content is few is called viscous crude.Viscous crude is because viscosity is high, and flow difficulties, causes development difficulty high.Viscous crude occupies very large proportion in World's Oil and Gas Resources, and the exploitation to viscous crude field is more and more paid attention in countries in the world.At present the exploitation of viscous crude field mainly being taked to heavy crude heat extraction technology both at home and abroad, is mainly by rising reservoir temperature, reduces viscosity of thickened oil, thereby reduces heavy oil development difficulty.In heavy crude heat extraction, the technical method of mainly taking has steam soak, steam flooding, combustion in situ etc.Wherein steam soak becomes the major technique of heavy oil development with its significant superiority.
Steam soak is called again periodically steam injection or circulation steam injection, utilizes injection boiler equipment to inject HTHP wet saturated steam to heavy crude well, and by the heating crude oil in certain limit in oil reservoir, to reduce viscosity, then back production out.Its recovery process is divided into three phases: steam injection stage, stewing well stage, recovery phase drives a well.The injection boiler equipment using in the steam injection stage is called again wet steam generator, and it refers to and utilizes the heat energy of fuel or other energy water to be heated as to the plant equipment of steam.Injection boiler is a kind of high-energy equipment, and its thermal efficiency directly affects the development cost of viscous crude field.Method of testing according to GB10180-88 < < Industrial Boiler Experiment of Thermophysics standard > > is carried out thermal efficiency test to the injection boiler equipment of oil thermal recovery special use, and the evenly heat efficiency of injection boiler is between 75%-80% at present.Wherein fuel combustion loss is a major reason that causes the injection boiler thermal efficiency to reduce.Uphole steam generator fuel used mainly be take fuel oil, combustion gas as main, such as crude oil, natural gas etc.Fuel is exported from fuel storage, after fuel channel is by fuel nozzle atomization, then brings burner hearth internal combustion into by the wind energy of the generation of air blast.For economic factor, consider, its fuel major part is from the self-produced crude oil in oil field.Self-produced crude oil often viscosity is higher, and density is larger, causes the bulky grain fuel oil of molecular structure compactness in the quick of short duration combustion process of former oil particles to fail fully to burn, thereby has reduced fuel burn-off rate, causes the injection boiler thermal efficiency to reduce.
In fuel, adding fuel additive is a kind of mode that improves the injection boiler thermal efficiency.Fuel additive is a kind of organic catalyst or combustion adjuvant that has combustion-supporting ability, this fuel additive can be broken up the original molecular structure of fuel, reduce fuel viscosity, make it reach the combustion efficiency that approaches light Fuel, thereby improve the chemical products of fuel burn-off rate, reduction fuel consumption.Generally when using liquid fuel, use fuel additive, liquid fuel is as much as possible fully burnt, when using gaseous fuel, also can add fuel additive, to improve the efficiency of combustion of gaseous fuel.Fuel additive is all to be added in fuel container and carried out static sedimentation by manual type at present, after naturally mixing, uses.While using manual type to add fuel additive to fuel storage, because fuel storage capacity is large, be difficult to realize the full and uniform stirring of fuel additive and fuel, conventionally by fuel additive, naturally mixed with fuel.This static sedimentation, the mode of naturally mixing are difficult to make fuel additive evenly to mix with fuel, thereby have reduced the efficiency of combustion of fuel.
Summary of the invention
The invention provides a kind of combustion gas (fuel oil) additive (follow-up referred to as " fuel additive ") adding set and adding method, fuel additive is added can evenly be added in fuel.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
An injection boiler fuel additive-adding device, this device comprises medicine-chest, proportioning pump, agitator, connecting pipe, wherein:
Described medicine-chest is body structure, and for holding fuel additive and diluent, described medicine-chest comprises dosing mouth and medicine outlet; Described dosing mouth is used for adding fuel additive and diluent, and described medicine outlet is used for exporting fuel additive;
Described proportioning pump, for regulating the output quantity of the fuel additive unit interval of medicine-chest, described proportioning pump comprises input port and delivery outlet, the input port of described proportioning pump is connected with the medicine outlet of medicine-chest; The delivery outlet of described proportioning pump is connected with one end of connecting pipe, for exporting fuel additive to injection boiler by connecting pipe;
Described agitator, for stirring fuel additive and diluent; Described agitator comprises control part, connecting axle and the blade connecting successively; Described medicine-chest top also arranges opening, the opening that described agitator arranges by this medicine-chest top; Described controlling position is outside in described medicine-chest, and is fixedly connected with described medicine-chest at described medicine-chest top open part; The blade of described agitator and connecting axle are positioned at medicine-chest inner side;
Described connecting pipe, for connecting proportioning pump and injection boiler, one end of described connecting pipe is connected with the delivery outlet of proportioning pump, and the other end of described connecting pipe is connected with injection boiler.
Injection boiler fuel additive-adding device described above, its preferred version is that described injection boiler fuel additive-adding device also comprises atomising device, for atomized fuel additive; Described atomising device comprises input and output, and the input of described atomising device is connected with the delivery outlet of proportioning pump by connecting pipe, and the output of described atomising device is connected with the wind pipe of the air blast of injection boiler.
Injection boiler fuel additive-adding device described above, its preferred version is that described atomising device is annular sprayer; Described ring-like sprayer comprises for inputting the input of fuel additive, and the shower nozzle of the annular hollow structure being connected with input is arranged for spraying the nozzle of fuel additive in shower nozzle madial wall equal intervals.
Injection boiler fuel additive-adding device described above, its preferred version is that described medicine-chest also comprises sewage draining exit, for clearing up medicine-chest and getting rid of residual fuel additive.
Injection boiler fuel additive-adding device described above, its preferred version is that the medicine-chest of described injection boiler fuel additive-adding device is also provided with liquid level gauge, for monitoring the liquid level of liquid in described medicine-chest.
Injection boiler fuel additive-adding device described above, its preferred version is that described connecting pipe is connecting hose.
In conjunction with injection boiler fuel additive-adding device of the present invention, the invention provides a kind of injection boiler combustion system, this injection boiler combustion system comprises blowing plant, fuel supply system, boiler combustion device, wherein,
Described blowing plant, for wind energy is provided, brings fuel into injection boiler burner;
Described fuel supply system, for providing boiler combustion device required fuel;
Described boiler combustion device, for the combustion space of fuel is provided, and the energy of output burning generation;
Described injection boiler combustion system also comprises that the embodiment of the present invention 1 and 2 provides the injection boiler fuel additive-adding device described in any one.
The invention provides a kind of fuel additive adding method, its implementation process comprises the following steps:
S1: fuel additive mixes in medicine-chest container with diluent;
S2: medicine-chest container quantitatively adds the fuel additive after dilution in fuel by fuel additive and the interpolation ratio of fuel,
The computing formula of wherein, fuel additive being added in the unit interval to the addition L in fuel is:
L=(M*K) (1+P)/(H*P), wherein L representation unit adds the amount of the fuel additive in fuel in the time, M represents the amount of fuel, K represents the mixing ratio of fuel additive and fuel, H represents the elapsed time of fuel, and P represents the mixed proportion of fuel additive and diluent.
Fuel additive adding method described above, its preferred version is that the fuel additive of the quantitative output described in S2 is carried out adding in fuel after atomization again.
Injection boiler fuel additive-adding device provided by the invention and adding method, by setting fuel additive, quantitatively export fuel additive with the interpolation ratio of fuel, fuel additive is evenly added in fuel, fuel additive can be mixed with fuel is full and uniform, reduce fuel viscosity, improve fuel economy, thereby improved boiler thermal output.
Accompanying drawing explanation
Fig. 1 is structure and each parts annexation schematic diagram of injection boiler fuel additive-adding device described in the embodiment of the present invention 1;
Fig. 2 is the structural representation of a kind of proportioning pump 2 of using in injection boiler fuel additive-adding device described in the embodiment of the present invention 1;
Fig. 3 is structure and each parts annexation schematic diagram of agitator 3 in injection boiler fuel additive-adding device described in the embodiment of the present invention 1;
Fig. 4 is the annexation schematic diagram of injection boiler fuel additive-adding device and injection boiler described in the embodiment of the present invention 1;
Fig. 5 is structure and each parts annexation schematic diagram of injection boiler fuel additive-adding device described in the embodiment of the present invention 2;
Fig. 6 is the structural representation of annular sprayer in the embodiment of the present invention 2 injection boiler fuel additive-adding devices;
Fig. 7 is the injection boiler fuel additive-adding device structure that contains described sewage draining exit 3 and described liquid level gauge 4 and the annexation schematic diagram described in the embodiment of the present invention 2;
Fig. 8 is injection boiler fuel additive-adding device described in the embodiment of the present invention 2 and the annexation schematic diagram of injection boiler;
Fig. 9 is a kind of injection boiler combustion system structural representation that contains in the embodiment of the present invention 1 and embodiment 2 the injection boiler fuel additive-adding device described in any one provided by the invention.
The specific embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Embodiment based in the application, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, should belong to the scope of protection of the invention.
Embodiment 1 is a kind of injection boiler fuel additive-adding device provided by the invention.Fig. 1 is structure and each parts annexation schematic diagram of the embodiment of the present invention 1 injection boiler fuel additive-adding device.As shown in Figure 1, injection boiler fuel additive-adding device provided by the invention comprises medicine-chest 1, proportioning pump 2, agitator 3, connecting pipe 5, wherein:
Medicine-chest 1, can be for holding fuel additive and diluent, and described medicine-chest 1 can be the body structures such as cuboid, cylinder.Described medicine-chest 1 comprises dosing mouth 101, medicine outlet 102.Described dosing mouth 101, can be for adding fuel additive and diluent.Described dosing mouth 101 can be arranged on the top of medicine-chest 1 or the first half of sidewall.Described medicine outlet 102, can be for output fuel additive.Described medicine outlet 102 can be arranged at the bottom of medicine-chest 1 or the latter half of sidewall.As shown in Figure 1, in this enforcement, medicine-chest 1 is cuboid, and described dosing mouth 101 is positioned at medicine-chest 1 top, and described medicine outlet 102 is positioned at medicine-chest 1 sidewall the latter half.
Proportioning pump 2, can be for the fuel additive unit interval output quantity in regulating case 1.Described proportioning pump comprises input port and delivery outlet, and the input port of described proportioning pump is connected with the medicine outlet of medicine-chest; The delivery outlet of described proportioning pump is connected with one end of connecting pipe, for exporting fuel additive to injection boiler by connecting pipe.Described proportioning pump 2 can be can carry according to a certain percentage the infusion pump of liquid material for meeting technological process needs.Fig. 2 is a kind of proportioning pump 2 structural representations that use in the present embodiment 1.As shown in Figure 2, described proportioning pump 2 can comprise: there is the pump housing 203 of the driven plunger moving reciprocatingly inside, be connected for the input port 201 that sucks liquid with the pump housing 203, be connected for the delivery outlet 202 that pumps liquid with the pump housing 203, be connected to automatically controlled group 204 that the pump housing provides power and can regulate pump housing unit interval output quantity with the pump housing.The input port 201 of described proportioning pump can be connected with the medicine outlet 102 of described medicine-chest 1.The delivery outlet 202 of described proportioning pump can be connected with one end of described connecting pipe 5.The delivery outlet 202 of described proportioning pump can also comprise the flowmeter 2021 for real-time 2 unit interval of displaying ratio pump output quantity.In the present invention, in embodiment 1, the proportioning pump 2 of indication is not limited to proportioning pump structure described above, can carry according to a certain percentage the infusion pump of liquid material to can be used as the proportioning pump 2 of indication in the embodiment of the present invention 1 at present on domestic and international market for meeting technological process needs.
Connected mode between the medicine outlet 102 of described medicine-chest 1 and the input port 201 of proportioning pump 2, can realize in the following manner:
Between the medicine outlet 102 of described medicine-chest 1 and the input port 201 of proportioning pump 2, adopt flange to be connected;
Between the medicine outlet 102 of described medicine-chest 1 and the input port 201 of proportioning pump 2, adopt and be welded to connect.
Agitator 3, can make fuel additive fully mix with diluent for the mix and blend of fuel additive and diluent in medicine-chest 1, improves the service efficiency of fuel additive.Described agitator 3 can comprise control part 301, connecting axle 302 and blade 303.Fig. 3 shows structure and each parts annexation of agitator 3 described in the present embodiment 1.Described control part 301 can be arranged at the top of medicine-chest 1.Described control part 301 is fixedly connected with medicine-chest 1 top, for example, can adopt screw thread or be welded to connect.At medicine-chest, 1 top control part 301 places arrange an opening, and this opening has the connecting axle 302 that extends downward medicine-chest 1 inside and connect control part 301 and blade 303.The control part of described agitator 3 can also contain timing controller, realizes timing agitation function.
Connecting pipe 5, can be delivered to injection boiler equipment by proportioning pump for fuel additive.One end of described connecting pipe 5 is connected with the delivery outlet 202 of proportioning pump 2, and the other end of described connecting pipe 5 is connected with injection boiler.
Connecting pipe 5 described in above-described embodiment 1 can be connecting hose.
Medicine-chest 1 described in above-described embodiment 1 can also comprise sewage draining exit 3, and described sewage draining exit 103, for clearing up medicine-chest 1 and getting rid of residual fuel additive.Described sewage draining exit 103 can be arranged at the bottom of medicine-chest 1 or the latter half of sidewall.
Injection boiler fuel additive-adding device described in above-described embodiment 1 can also comprise liquid level gauge 4, and described liquid level gauge 4 can be for the liquid level of monitoring medicine-chest 1 interior liquid.Described liquid level gauge 4 can be magnetic float liquidlevel meter, pressure content gauge, radar level gauge etc.Liquid level gauge 4 in the present embodiment 1 is magnetic float liquidlevel meter.The measurement mechanism that described magnetic float liquidlevel meter 4 is measured liquid level is positioned at the inside of described medicine-chest 1, and described magnetic float liquidlevel meter shows that the reading plotter of medicine-chest 1 interior liquid level is positioned at the outside of described medicine-chest 1.
Fig. 4 is injection boiler fuel additive-adding device described in the embodiment of the present invention 1 and the annexation schematic diagram of injection boiler.As shown in Figure 4, in burner hearth 10 porch, have fuel channel 8, fuel channel 8 is connecting fuel nozzle 9 that can atomized liquid fuel.The other end of described connecting pipe 5 is connected with the fuel channel of injection boiler 8.Fuel additive naturally mixes with fuel by connecting pipe 5 in fuel channel 8, by fuel nozzle 9, sprays.The wind energy that air blast produces drives the fuel mix of fuel nozzle 9 ejections to enter burner hearth 10, then in burner hearth 10 internal combustion.
In the injection boiler fuel additive-adding device that the present embodiment 1 provides, fuel additive mixes in medicine-chest 1 with diluent, and after agitator 3 stirs, fully dilution mixes.The interpolation ratio of proportioning pump 2 based on fuel additives and fuel, the output quantity of setting unit time fuel additive, is transported to injection boiler equipment by fuel additive, has realized fuel additive and has mixed according to the even of preset proportion with fuel.
Embodiment 2 is the embodiment of the second injection boiler fuel additive-adding device provided by the invention.Fig. 5 shows structure and each parts annexation of the embodiment of the present invention 2 injection boiler fuel additive-adding devices.As shown in Figure 5, the structure of the injection boiler fuel additive-adding device that the embodiment of the present invention 2 provides and each parts annexation are identical with embodiment 1, and difference is that this injection boiler fuel additive-adding device also comprises atomising device 6, wherein:
Described atomising device 6, can be for atomized fuel additive, and the structure of described atomising device 6 comprises inputs the input of fuel additive, the output of ejection fuel additive.6 inputs of described atomising device are connected with the delivery outlet 202 of proportioning pump 2 by connecting pipe 5, and the output of described atomising device 6 is connected with the wind pipe of the air blast of injection boiler.
The connected mode of the input of the other end of described connecting hose 5 and atomising device 6, can realize in the following manner:
Between the second end of described connecting hose 5 and the input of atomising device 6, adopt snap joint to be connected.
Snap joint described above is that a kind of external tool that do not need just can be realized the joint of pipeline connection or disconnection.The snap joint of using in the present embodiment 1 can be that gas liquid shares snap joint, can be also oil pressure snap joint.
What atomising device 6 described in above-described embodiment 2 was concrete can be annular sprayer.Fig. 6 is the structural representation of described annular sprayer, as described in Figure 6, described annular sprayer comprises and being connected with the other end of connecting pipe 5 for inputting the input 601 of fuel additive, the shower nozzle 602 of the annular hollow structure being connected with input 601, arranges for spraying the nozzle 603 that fuel adds in shower nozzle 602 madial wall equal intervals.Fuel additive carries out atomization by nozzle 603 ejections of described annular sprayer.Described nozzle 603 can regulate spout size to regulate atomizing effect.In the present embodiment, 2 atomising devices 6 that use are annular sprayer.The shape of the shower nozzle 602 of described annular sprayer, can select rectangle or column construction according to the actual conditions of burner hearth 10 entrances.
Connecting pipe described in above-described embodiment 2 can be connecting hose.
Medicine-chest 1 described in above-described embodiment 2 can also comprise the sewage draining exit 3 described in embodiment 1, and described sewage draining exit 103, for clearing up medicine-chest 1 and getting rid of residual fuel additive.
Injection boiler fuel additive-adding device described in above-described embodiment 2 can also comprise the liquid level gauge 4 described in embodiment 1, and described liquid level gauge 4 can be for the liquid level of monitoring medicine-chest 1 interior liquid.
Fig. 7 is the injection boiler fuel additive-adding device structure that contains described sewage draining exit 3 and described liquid level gauge 4 and the annexation schematic diagram described in the embodiment of the present invention 2.
Fig. 8 is injection boiler fuel additive-adding device described in the embodiment of the present invention 2 and the annexation schematic diagram of injection boiler.As shown in Figure 8, the wind energy that quantitatively fuel additive of output is produced by air blast after atomising device 6 atomizations is brought burner hearth 10 porch into, enters burner hearth 10 internal combustion with the fuel mix of fuel nozzle 9 ejections.
The injection boiler fuel additive-adding device that the embodiment of the present invention 2 provides, proportioning pump 2 is quantitatively exported fuel additive according to the mixed proportion of fuel additive and fuel, quantitatively the fuel additive of output after atomising device 6 atomizations again with fuel nozzle 9 atomizations after fuel mixed, like this in having realized the mixed uniformly process of fuel additive and fuel, further improve the mixability of fuel additive and fuel, improved the service efficiency of fuel additive.
The invention provides a kind of injection boiler combustion system that any one injection boiler fuel additive-adding device providing in above-described embodiment 1 and embodiment 2 is provided.Fig. 9 is the structural representation of described injection boiler combustion system.As shown in Figure 9, this injection boiler combustion system comprises blowing plant, fuel supply system, boiler combustion device, fuel additive adding set.Wherein,
Described blowing plant, can, for wind energy is provided, send fuel into injection boiler burner;
Described fuel supply system, can be for providing boiler combustion device required fuel;
Described boiler combustion device, can be for the combustion space of fuel is provided, and the energy that produces of output burning;
Described fuel additive adding set, can, for by fuel additive output, evenly mix with fuel.
Described fuel additive adding set, comprises medicine-chest, proportioning pump, agitator, connecting pipe, wherein:
Described medicine-chest is body structure, and for holding fuel additive and diluent, described medicine-chest comprises dosing mouth and medicine outlet, and described dosing mouth is used for adding fuel additive and diluent, and described medicine outlet is used for exporting fuel additive;
Described proportioning pump, for regulating the output quantity of the fuel additive unit interval of medicine-chest, described proportioning pump comprises input port and delivery outlet, the input port of described proportioning pump is connected with the medicine outlet of medicine-chest; The delivery outlet connecting pipe of described proportioning pump is connected, for exporting fuel additive to injection boiler and fuel mix by connecting pipe;
Described agitator, for stirring fuel additive and diluent; Described agitator comprises control part, connecting axle and the blade connecting successively; Described medicine-chest top also arranges opening, the opening that described agitator arranges by this medicine-chest top; Described controlling position is outside in described medicine-chest, and is fixedly connected with described medicine-chest at described medicine-chest top open part; The blade of described agitator and connecting axle are positioned at medicine-chest inner side;
Described connecting pipe, for connecting proportioning pump and injection boiler, one end of described connecting pipe is connected with the delivery outlet of proportioning pump, and the other end of described connecting pipe is connected with injection boiler.
Any one injection boiler fuel additive-adding device that fuel additive adding set in described injection boiler combustion system can provide for embodiment in the present invention 1 and embodiment 2.
The invention provides a kind of fuel additive adding method, its implementation procedure comprises the following steps:
S1: fuel additive mixes in medicine-chest container with diluent.
First determine the addition of the fuel additive of required use.Concrete can calculate according to the mixed proportion of fuel additive and fuel and existing fuel.
Secondly fuel additive is diluted, reduce concentration or the dissolved solid additive of fuel additive.Fuel additive has solid-state graininess or Powdered, liquid state, will after fuel additive dilution, can improve the mixability of fuel additive and fuel with fuel mix again.Concrete fuel additive and mixing diluents mode, can be that fuel additive mixes with diluent natural subsidence in medicine-chest container, can be also with agitating device, to be uniformly mixed in medicine-chest container.General stirring can make fuel additive fully mix with diluent in 2 to 3 hours.
Medicine-chest container described above is for holding the vessel of fuel additive and diluent.
Conventional diluent is gasoline or the diesel oil of 65 degrees Celsius to 85 degrees Celsius.
Can in medicine-chest container described above, liquid level gauge be set, for monitoring medicine-chest level condition.
Determine after the use amount of fuel interpolation, fuel additive and diluent are uniformly mixed according to a certain percentage to the fuel additive after being diluted in medicine-chest container.
S2: medicine-chest container is by the interpolation of fuel additive and fuel than quantitatively adding the fuel additive after dilution in fuel, and wherein, what in the unit interval, fuel additive is added to addition L in fuel is:
L=(M*K) (1+P)/(H*P), wherein L representation unit adds the addition of the fuel additive in fuel in the time, M represents the amount of fuel, K represents the mixing ratio of fuel additive and fuel, H represents the elapsed time of fuel, and P represents the mixed proportion of fuel additive and diluent.
According to fuel additive and the interpolation ratio of fuel, the fuel additive after dilution is quantitatively exported by medicine-chest container.The interpolation of fuel additive and fuel is foundation than take the description of fuel additive.Concrete implementation method is: be provided with fuel M and burn at H hour internal combustion, fuel additive than for K, needs fuel additive M*K with the interpolation of fuel altogether.The mixed proportion of fuel additive and diluent is P, calculates thus and needs altogether diluent (M*K)/P.Now, the total amount of diluent and fuel additive be (M*K) (1+P)/P.From above, calculating addition L fuel additive being added in fuel in the unit interval is:
L=(M*K)(1+P)/(H*P)。
Conventionally due to fuel additive with respect to the amount of diluent seldom, the amount of fuel additive can be omitted and disregard.Therefore ignore after the amount of fuel additive itself, the amount of in the unit interval, fuel additive being added in fuel is:
L=(M*K)/(H*P)。
Interpolation by fuel additive and fuel, than the unit interval output quantity of additive that calculated in medicine-chest container the fuel after dilution, is quantitatively added in fuel, evenly mixes with fuel.Blowing plant takes the fuel of fuel blend additive into burner hearth internal combustion to.Burner hearth is the solid space for fuel combustion.
The fuel additive of above-mentioned quantitative output can first carry out after atomization and fuel mix again.Fuel additive particle after atomization diminishes, and whole surface area increases, and can better evenly mix with fuel, improves the service efficiency of fuel additive.Atomization described above, refers to fuel additive is become to the oil droplet shape that radius is tiny, increases the surface area of fuel additive, fuel additive can be mixed with fuel is full and uniform, conflagration.
Injection boiler equipment is generally all provided with thermal efficiency detector, therefore can change to control by observing the thermal efficiency of boiler the atomizing effect of fuel additive.
This fuel additive adding method realized based on fuel additive with the interpolation of fuel than quantitative fuel additive, fuel additive is evenly added in fuel, fuel additive is evenly mixed with fuel, improved the efficiency of combustion of fuel.
Embodiment 3 is used the inventive method evenly to add fuel additive to an embodiment in fuel.
There are 24 tons of liquid fuels at injection boiler burner hearth internal combustion, to burn with 24 hours.Before using fuel additive, the thermal efficiency of this boiler is not 78%.The fuel additive using in the present embodiment 3 is that a kind of diesel oil is economized finish.This fuel additive is solid state powder shape, adopts bottledly, and 70 grams every bottle, this fuel additive is 70 grams/ton with the interpolation ratio of fuel.By above-mentioned calculating, burn these 24 tons of liquid fuels and need altogether 24 bottles of these fuel additives.This fuel additive dilution ratio, without specific (special) requirements, is melted its solid state powder shape.For fuel additive is fully mixed with fuel, in the present embodiment, the mixed proportion of the employing of fuel additive and diluent is: bottle/10L, 70 grams/10 liters.Diluent adopts the diesel oil of 70 degrees Celsius of temperature, therefore needs altogether 240 liters of diesel fuel dilution agent.Above-mentioned fuel additive and diluent are stirred 2 hours in medicine-chest container, it is fully mixed.Because of above-mentioned 24 bottles of fuel additive capacity than 240 liters of diesel fuel dilution agent seldom, therefore this think dilution after fuel additive total capacity be 240 liters.24 tons of 24 hours fuel used times have burnt, and 1 ton of fuel of consumption per hour calculates 70 grams of fuel additives of need consumption per hour according to fuel additive and the interpolation ratio of fuel simultaneously.Fuel additive after 240 liters of dilutions is altogether containing 70 grams of * 24 bottles of fuel additives, if therefore calculate 70 grams of fuel additives of interpolation per hour, the fuel additive after the dilution of medicine-chest container unit time output is: 10 ls/h.Also direct substitution formula L=(M*K)/(H*P) calculate this value, L=(24 ton * is 70 grams/ton)/(24 hours * 70 grams/10 liters)=10 ls/h.Fuel additive after the dilution of then medicine-chest container quantitatively being exported carries out atomization.In the present embodiment, when boiler thermal output detector detects the thermal efficiency, improve 5% and just think when above and reached good atomizing effect.The wind energy finally fuel additive after atomization being produced by air blast is sent in burner hearth burns with fuel mix, has realized evenly mixing with fuel of fuel additive.After test detection assessment, using forwarding method of the present invention to add fuel additive, boiler thermal output brings up to 86%, and boiler thermal output has improved 8%.
Fuel additive adding method device provided by the invention can make fuel additive evenly add in fuel, fully mixes with fuel, improves fuel burn-off rate, and then has improved the thermal efficiency of injection boiler.

Claims (9)

1. an injection boiler fuel additive-adding device, is characterized in that, this device comprises medicine-chest, proportioning pump, agitator, connecting pipe, wherein:
Described medicine-chest is body structure, and for holding fuel additive and diluent, described medicine-chest comprises dosing mouth and medicine outlet; Described dosing mouth is used for adding fuel additive and diluent, and described medicine outlet is used for exporting fuel additive;
Described proportioning pump, for regulating the output quantity of the fuel additive unit interval of medicine-chest, described proportioning pump comprises input port and delivery outlet, the input port of described proportioning pump is connected with the medicine outlet of medicine-chest; The delivery outlet of described proportioning pump is connected with one end of connecting pipe, for exporting fuel additive to injection boiler by connecting pipe;
Described agitator, for stirring fuel additive and diluent; Described agitator comprises control part, connecting axle and the blade connecting successively; Described medicine-chest top also arranges opening, the opening that described agitator arranges by this medicine-chest top; Described controlling position is outside in described medicine-chest, and is fixedly connected with described medicine-chest at described medicine-chest top open part; The blade of described agitator and connecting axle are positioned at medicine-chest inner side;
Described connecting pipe, for connecting proportioning pump and injection boiler, one end of described connecting pipe is connected with the delivery outlet of proportioning pump, and the other end of described connecting pipe is connected with injection boiler.
2. injection boiler fuel additive-adding device as claimed in claim 1, is characterized in that, described injection boiler fuel additive-adding device also comprises atomising device, for atomized fuel additive; Described atomising device comprises input and output, and the input of described atomising device is connected with the delivery outlet of proportioning pump by connecting pipe, and the output of described atomising device is connected with the wind pipe of the air blast of injection boiler.
3. injection boiler fuel additive-adding device as claimed in claim 2, is characterized in that, described atomising device is annular sprayer; Described ring-like sprayer comprises for inputting the input of fuel additive, and the shower nozzle of the annular hollow structure being connected with input is arranged for spraying the nozzle of fuel additive in shower nozzle madial wall equal intervals.
4. the injection boiler fuel additive-adding device as described in claim 1,2 or 3, is characterized in that, described medicine-chest also comprises sewage draining exit, for clearing up medicine-chest and getting rid of residual fuel additive.
5. the injection boiler fuel additive-adding device as described in claim 1,2 or 3, is characterized in that, the medicine-chest of described injection boiler fuel additive-adding device is also provided with liquid level gauge, for monitoring the liquid level of liquid in described medicine-chest.
6. the injection boiler fuel additive-adding device as described in claim 1,2 or 3, is characterized in that, described connecting pipe is connecting hose.
7. an injection boiler combustion system, comprises blowing plant, fuel supply system, and boiler combustion device, wherein,
Described blowing plant, for wind energy is provided, brings fuel into injection boiler burner;
Described fuel supply system, for providing boiler combustion device required fuel;
Described boiler combustion device, for the combustion space of fuel is provided, and the energy of output burning generation;
It is characterized in that, described injection boiler combustion system also comprises the injection boiler fuel additive-adding device as described in any one in claim 1-6.
8. an injection boiler fuel additive adding method, is characterized in that, its implementation process comprises the following steps:
S1: fuel additive mixes in medicine-chest container with diluent;
S2: medicine-chest container quantitatively adds the fuel additive after dilution in fuel by fuel additive and the interpolation ratio of fuel, and wherein, the computing formula of in the unit interval, fuel additive being added to the addition L in fuel is:
L=(M*K) (1+P)/(H*P), wherein L representation unit adds the addition of the fuel additive in fuel in the time, M represents the amount of fuel, K represents the mixing ratio of fuel additive and fuel, H represents the elapsed time of fuel, and P represents the mixed proportion of fuel additive and diluent.
9. fuel additive adding method as claimed in claim 8, is characterized in that, the fuel additive of the quantitative output described in S2 is carried out adding in fuel after atomization again.
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