CN109373348B - A kind of diesel fuel burner is hydraulic to blow and fuel system and its application method - Google Patents
A kind of diesel fuel burner is hydraulic to blow and fuel system and its application method Download PDFInfo
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- CN109373348B CN109373348B CN201811195165.3A CN201811195165A CN109373348B CN 109373348 B CN109373348 B CN 109373348B CN 201811195165 A CN201811195165 A CN 201811195165A CN 109373348 B CN109373348 B CN 109373348B
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K5/00—Feeding or distributing other fuel to combustion apparatus
- F23K5/02—Liquid fuel
- F23K5/04—Feeding or distributing systems using pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2233/00—Ventilators
- F23N2233/06—Ventilators at the air intake
- F23N2233/08—Ventilators at the air intake with variable speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/16—Fuel valves variable flow or proportional valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/26—Fuel nozzles
- F23N2235/28—Spray fuel nozzles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of hydraulic air-supply of diesel fuel burner and fuel system and its application methods, belong to burner technical field of hydraulic.The system includes supply air system and fuel system；Supply air system includes air-supply fuel feeding part, the first proportional reversing valve and blower motor, and blower motor picks wind fuel feeding part, the blower of blower motor transmission connection burner by the first proportional reversing valve；Fuel system includes part of the fuel supply and the second proportional reversing valve, and the second proportional reversing valve of fuel supplying part lease making connects the fuel nozzle of burner.The valve port opening of the first proportional reversing valve, the wind speed and air quantity of control burner air-supply are controlled in the supply air system of the method for the present invention by automatically controlled mode；The fuel feed that the second proportional reversing valve controls burner is controlled by automatically controlled mode in fuel system.The present invention can accurately control air output and fuel feed and its proportion on the basis of realizing burner air-supply and supply fuel, and combustion economization is high, is easy to electrical control.
Description
Technical field
The invention belongs to diesel fuel burner technical field of hydraulic, more specifically to a kind of diesel fuel burner liquid
Force feed wind and fuel system and its application method.
Background technique
Diesel fuel burner is a kind of equipment for converting thermal energy by combustion chemistry reactive mode for diesel oil, by air and bavin
Oil is by pre-mixing apparatus by proper proportion mix and convert so that its full combustion.Diesel fuel burner is higher as a kind of the degree of automation
Electromechanical integration equipment, mainly by supply air system, ignition system, monitoring system, four part group of fuel system and electric-control system
At；Wherein, the function of supply air system is to be sent into the air of certain wind speed and air quantity in combustion chamber, and the function of fuel system exists
The fuel needed for guaranteeing burner combustion.
Currently, usually used diesel fuel burner mainly uses forceful electric power power-supply system and AC motor system respectively as sending
The power source and control system of wind system and fuel system, but forceful electric power is dangerous, starting current is big and needs moment connection exchange
Power supply is not available in the move vehicle or mechanical equipment for requiring good mobility；Also have using direct current motor system
As power source and control system, but its reliability is low, the service life is short, maintenance heavy workload, cost are high, is not able to satisfy equipment
Job requirement.In addition, also having only a few using HYDRAULIC CONTROL SYSTEM, but it can only realize simply power transmitting and oil circuit on-off
Control, cannot accurately control air output and fuel feed required for burner, can not achieve air output and fuel quantity
Accurate match, combustion economization are poor.
For example, Chinese Patent Application No. are as follows: 200420026762.0, publication date are as follows: on 07 20th, 2005 patent texts
It offers, discloses a kind of hydraulic combustor.It includes hydraulic system, diesel fuel tanks, boiler burner, blows into boiler-burner burner hearth
Blower motor, oil pump motor, control high-tension ignition and the control sent the diesel oil in diesel fuel tanks to the multiple nozzles of boiler burner
The boiler controller that each nozzle oil circuit solenoid valve is opened, blower motor are hydraulic gear motor, and oil pump motor is also hydraulic
Gear motor, it further includes the disengaging hydraulic oil pipe that blower motor and oil pump motor are respectively connected to from hydraulic system, in hydraulic pressure system
Be connected on system and the hydraulic oil inlet pipe of blower motor pressure gauge, overflow valve, pressure limiting valve, four control oil circuit on-off solenoid valve.
The program there is disadvantages mentioned above, i.e., it simply can only be blown and be supplied fuel, can not accurately control adjusting respectively
Air output required for burner Actual combustion and fuel feed not can control and realize air output and fuel quantity in combustion process
Accurate match, system practical effect and combustion economization are poor.
Summary of the invention
1, it to solve the problems, such as
The present invention provides a kind of hydraulic air-supply of diesel fuel burner and fuel system, existing using hydraulic its object is to solve
The diesel fuel burner of system simply can only be blown and be supplied fuel, can not be accurately controlled respectively needed for adjusting burner
The air output and fuel feed wanted not can control the accurate match for realizing air output and fuel quantity in combustion process, burning warp
The problem of Ji property difference.
The present invention also provides the application methods of above system, and fuel base is blown and supplied to diesel fuel burner realizing
On plinth, air output and fuel feed can accurately be controlled, control the accurate match of air output and fuel quantity, improve combustion
The economy of burning, and it is easy to electrical control.
2, technical solution
To solve the above problems, the present invention adopts the following technical scheme that.
A kind of hydraulic air-supply of diesel fuel burner and fuel system, including supply air system and fuel system；The supply air system
It is picked including air-supply fuel feeding part, the first proportional reversing valve and blower motor, the blower motor by the first proportional reversing valve
Wind fuel feeding part, the blower of blower motor transmission connection burner；The fuel system includes part of the fuel supply and the second ratio
Example reversal valve, second proportional reversing valve of fuel supplying part lease making connect the fuel nozzle of burner.
As a further improvement, the supply air system further includes braking feed circuit, the braking feed circuit includes logical
Cross sequentially connected 6th check valve of pipeline, overflow valve and third check valve；The import of 6th check valve connects blower motor
Oil outlet, the outlet of third check valve connects the oil inlet of blower motor；The outlet of the overflow valve takes back hydraulic oil container.
As a further improvement, the supply air system further includes safety protection loop, safety protection loop includes the 4th single
To valve and the 5th check valve；The import of 4th check valve connects the outlet of overflow valve, and outlet connects the first proportional reversing valve；Institute
The import for stating the 5th check valve connects the oil inlet of blower motor, and outlet connects the import of overflow valve.
As a further improvement, the blower motor includes the first blower motor and the second blower motor of parallel connection, it is described
The oil outlet of first proportional reversing valve is followed by the first blower motor and the second blower motor through flow divider shunting；The third is unidirectional
Valve and the 5th check valve connect blower motor by flow divider.
As a further improvement, the air-supply fuel feeding part includes passing through sequentially connected second oil filter of pipeline, second
Variable pump and second one-way valve, the second oil filter import connect hydraulic oil container, and the second one-way valve outlet connects the first ratio
The T mouth of the P mouth of reversal valve, the first proportional reversing valve takes back hydraulic oil container through the second counterbalance valve；The outlet of the second one-way valve
Hydraulic oil container is connect through the second electromagnetic relief valve.
As a further improvement, the part of the fuel supply includes passing through the sequentially connected third oil filter of pipeline, diesel oil
Pump and the 7th check valve, the import of the third oil filter connect diesel fuel tanks, and the outlet of the 7th check valve connects the second proportional reversing valve
Oil inlet, the oil outlet of the second proportional reversing valve connects the fuel nozzle of burner；The diesel pump is driven by diesel motor；
The outlet of 7th check valve connects diesel fuel tanks through third electromagnetic relief valve.
As a further improvement, the fuel system further includes feed power section, feed power section includes passing through pipe
Sequentially connected first oil filter in road, the first variable pump and the first check valve, the import of first oil filter connect hydraulic oil container,
The outlet of first check valve connects the oil inlet of the diesel motor through solenoid directional control valve, and the oil outlet of the diesel motor is through first
Counterbalance valve takes back hydraulic oil container；The outlet of first check valve also takes back hydraulic oil container through the first electromagnetic relief valve.
A kind of application method of diesel fuel burner hydraulic air-supply and fuel system, including following operation:
One, pushing wind manipulation
The air-supply fuel feeding part of supply air system supplies hydraulic oil, blower motor to blower motor by the first proportional reversing valve
The fanman of driving burner makees to blow to burner；It is opened by the valve port that automatically controlled mode controls the first proportional reversing valve
Degree adjusts the working flow size for entering blower motor, to control the wind speed and air quantity of burner air-supply；
Two, fuel supplies
The part of the fuel supply of fuel system passes through fuel nozzle fuel feeding of second proportional reversing valve to burner；Pass through electricity
Prosecutor formula controls the valve port opening of the second proportional reversing valve, the distributive value of fuel nozzle is adjusted, to control the fuel of burner
Supply amount.
As a further improvement, in the pushing wind manipulation step, when blower works and blows, when blower motor input pressure
More than relief valve set pressure, overflow valve is opened, and hydraulic oil overflows back liquid by the 5th check valve, overflow valve and the 4th check valve
Pressure oil case, plays the role of safeguard protection；When blower stops working, the first proportional reversing valve cut-off, blower motor is made by inertia
With rotation, the oil outlet oil liquid of blower motor through the 6th check valve, overflow valve and third check valve be back to blower motor into
Hydraulic fluid port supplements oil liquid, and overflow valve back pressure brakes blower motor gradually.
As a further improvement, diesel pump passes through diesel oil horse in part of the fuel supply in the fuel supply operating procedure
Up to driving, diesel motor by the first variable pump as power source, and by solenoid directional control valve control diesel motor start and stop.
3, beneficial effect
Compared with the prior art, the invention has the benefit that
(1) the hydraulic air-supply of diesel fuel burner of the present invention and fuel system, can be realized to diesel fuel burner air output and combustion
Expect the accurate control of supply amount, controls the accurate match of air output and fuel quantity, improve the economy of burning, and be easy to electric-controlled
System, can use the battery of voltage 24V as the power supply of system controller, provide control electric signal, control system movement, system
Power density is big, especially meets the needs of mobile device.
(2) electromagnetic relief valve is arranged by the oil outlet in pump in the hydraulic air-supply of diesel fuel burner of the present invention and fuel system,
So that pump can No Load Start and work when by setting pressure output needed for pressure oil, by be arranged two proportional reversing valves, make
Blower motor revolving speed, supply fuel nozzle fuel diesel amount respectively can accurately adjust and be easy to electrical control, thus
Air output and fuel quantity are controlled, by the way that flow divider is arranged, enables oil liquid equivalent to be diverted to two blower motors, realizes two wind
Machine rotates synchronously, and by the way that the circuit that is made of check valve and overflow valve is arranged, enabling blower motor effective brake and prevents from being used to
Property be emptied, by be arranged counterbalance valve, keep blower motor, diesel motor revolving speed steady, by be arranged variable pump-motor loop, make
It is adjustable to obtain motor rotary speed.
(3) in the hydraulic air-supply of diesel fuel burner of the present invention and fuel system there is safety protection loop and braking repairing to return
Road, it is ensured that the stability and safety of blower motor work.
Detailed description of the invention
Fig. 1 is the hydraulic schematic diagram of supply air system in the hydraulic air-supply of diesel fuel burner of the present invention and fuel system；
Fig. 2 is the hydraulic schematic diagram of fuel system in the hydraulic air-supply of diesel fuel burner of the present invention and fuel system.
In figure: 1, the first oil filter；2, the second oil filter；3, the first variable pump；4, the second variable pump；5, the first electromagnetism overflows
Flow valve；6, the first check valve；7, second one-way valve；8, the second electromagnetic relief valve；9, first pressure gauge；10, second pressure gauge；
11, the first counterbalance valve；12, solenoid directional control valve；13, the second counterbalance valve；14, diesel motor；15, the first proportional reversing valve；16,
Three check valves；17, the 4th check valve；18, overflow valve；19, the 5th check valve；20, the 6th check valve；21, flow divider；22,
One blower motor；23, the second blower motor；24, third oil filter；25, diesel pump；26, the 7th check valve；27, third electromagnetism
Overflow valve；28, third pressure gauge；29, the second proportional reversing valve.
Specific embodiment
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
Unless otherwise indicated, the meaning of " plurality " is two or more.Combined with specific embodiments below with attached drawing to the present invention into
One step is described.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of hydraulic air-supply of diesel fuel burner and fuel system are present embodiments provided, is mainly used
Fuel is blown and supplied in diesel fuel burner, and is needed to control air output according to burning and supplied the proportion of fuel quantity.
The system mainly includes two big subsystems, respectively supply air system and fuel system；Wherein, supply air system effect is to burner
Interior air-supply ventilation, fuel system effect is that diesel fuel is sprayed into burner, and diesel fuel and gas are mixed and burned and generate heat
Amount, as burner operation.The structure to supply air system and fuel system and working principle are more described in detail below, and
The application method of the system is provided on this basis.
As shown in Figure 1, supply air system includes air-supply fuel feeding part, the first proportional reversing valve 15 and blower motor.Wherein, it send
Hydraulic power part of the wind fuel feeding part as blower motor, to drive blower motor to work；Blower motor transmission connection combustion
The blower of burner drives blower work, to carry out air-supply gas supply into burner.It should be noted that when burner operation
The wind speed and air quantity of air-supply need to be controlled, with according to fuel quantity Reasonable Combustion, blower motor passes through first in the present embodiment
Proportional reversing valve 15 picks wind fuel feeding part, and the wind of air-supply is reached by the flow that the first proportional reversing valve 15 controls blower motor
The accurate adjusting of speed and air quantity.
Fuel feeding part blow as hydraulic power part, can be used it is conventional using pump as power source in the prior art,
A kind of structure type is provided in embodiment, i.e., it includes passing through sequentially connected second oil filter 2 of pipeline, 4 and of the second variable pump
Second one-way valve 7.Specifically, 2 import of the second oil filter connects hydraulic oil container, the outlet of the second oil filter 2 connect the second variable pump 4 into
The oil outlet of hydraulic fluid port, the second variable pump 4 connects the import of second one-way valve 7, and the outlet of second one-way valve 7 connects the first proportional reversing valve
The T mouth of 15 P mouth, i.e. oil inlet, the first proportional reversing valve 15 takes back hydraulic oil container through the second counterbalance valve 13.In the present embodiment
One proportional reversing valve 15 uses two-position four-way solenoid-operated proportional reversal valve, and when power-off, oil inlet and outlet disconnects cut-off, blower motor into
Hydraulic fluid port connects the A mouth of the first proportional reversing valve 15, and the oil outlet of blower motor connects the B mouth of the first proportional reversing valve 15.Second is unidirectional
The second electromagnetic relief valve of outlet 8 of valve 7 connects hydraulic oil container, protects to supply air system, is also convenient for adjusting the second variable pump 4
Go out oil pressure, and the second electromagnetic relief valve 8 power off when be in overflow working condition.In addition, the outlet of second one-way valve 7 passes through
Pipeline connects second pressure gauge 10, real-time display air feed system operating pressure.
In the present embodiment, blower motor includes the first blower motor 22 and the second blower motor 23 in parallel, passes through two
A blower motor driving blower work, guarantees the abundance of air-supply.And the synchronism in order to guarantee the work of two blower motors,
The oil outlet of first proportional reversing valve 15 is followed by the first blower motor 22 and the second blower motor 23 through the shunting of flow divider 21, i.e., and the
The A mouth of one proportional reversing valve 15 connects the import of flow divider 21, and two outlets of flow divider 21 connect 22 He of the first blower motor respectively
The oil inlet of second blower motor 23.
Referring to figs. 1 and 2, fuel system is mainly grouped as by feed power section and fuel supplying part, wherein combustion
Material supply portion is fed power section and is then used for the power of part of the fuel supply and mention for supplying diesel fuel into burner
For, and be fed power section and use hydraulic power.The supply amount of accurate control diesel fuel, this implementation are needed when burner operation
Example realizes that the diesel oil of i.e. part of the fuel supply output connects burner through the second proportional reversing valve 29 by the second proportional reversing valve 29
Fuel nozzle, so as to control diesel fuel supply amount by automatically controlled mode.
In the present embodiment, part of the fuel supply includes passing through the sequentially connected third oil filter 24 of pipeline, 25 and of diesel pump
7th check valve 26.Specifically, the import of third oil filter 24 connects diesel fuel tanks, and the outlet of third oil filter 24 connects diesel pump 25
Oil inlet, the oil outlet of diesel pump 25 connect the import of the 7th check valve 26, and the outlet of the 7th check valve 26 connects the commutation of the second ratio
The oil outlet of the oil inlet of valve 29, the second proportional reversing valve 29 connects the fuel nozzle of burner.Here, the second proportional reversing valve 29
Also two-position four-way solenoid-operated proportional reversal valve is used, when power-off, oil inlet and outlet disconnects cut-off.The outlet of 7th check valve 26 is through third
Electromagnetic relief valve 27 connects diesel fuel tanks, protects to part of the fuel supply, also facilitates the oil pressure that goes out for adjusting diesel pump 25, and the
Overflow working condition is in when three electromagnetic relief valves 27 power off；Meanwhile the 7th the outlet of check valve 26 third pressure is connect by pipeline
Power table 28, real-time display part of the fuel supply operating pressure.It is worth noting that, diesel pump 25 passes through in feed power section
Diesel motor 14 provides power.
It includes passing through sequentially connected first oil filter 1 of pipeline, 3 and of the first variable pump that power section is fed in fuel system
First check valve 6 and solenoid directional control valve 12 and diesel motor 14.Specifically, the import of the first oil filter 1 connects hydraulic oil container,
The outlet of first oil filter 1 connects the oil inlet of the first variable pump 3, the oil outlet of the first variable pump 3 connect the first check valve 6 into
Mouthful, the outlet of the first check valve 6 connects the oil inlet of diesel motor 14 through solenoid directional control valve 12, and the oil outlet of diesel motor 14 is through the
One counterbalance valve 11 takes back hydraulic oil container.Solenoid directional control valve 12 is two-position two-way electromagnetic directional valve, and oil inlet and outlet is connected when energization.The
The first electromagnetic relief valve of outlet 5 of one check valve 6 takes back hydraulic oil container, protects to feed power section, also facilitates tune
The oil pressure that goes out of the first variable pump 3 is saved, and is in overflow working condition when the power-off of the first electromagnetic relief valve 5；Meanwhile first is unidirectional
The outlet of valve 6 connects first pressure gauge 9 by pipeline, and real-time display is fed power section operating pressure.It is worth noting that, first
Variable pump 3 and 4 Driven by Coaxial of the second variable pump rotate, by same motor driven, so as to rotate synchronously.
In the present embodiment, for Hydraulic Elements employed in system above, wherein first the 5, second electricity of electromagnetic relief valve
Magnetic overflow valve 8 and third electromagnetic relief valve 27 are pilot operated compound relief valve of the remote control orifice with bi-bit bi-pass reversal valve, and first becomes
Amount the 3, second variable pump 4 of pump is manual regulated variable pump, and diesel pump 25 is constant displacement pump, and diesel motor 14 is fixed displacement motor, blower
Motor is manual regulated variable motor, and overflow valve 18 is direct-acting overflow valve；First oil filter 1, the second oil filter 2, third filter
Oily device 24 is edge type oil filter, it is internal install useful aluminum steel or steel wire is close be wound on outside cylindrical skeleton composed by filter core；
Oil pipe used in system is high pressure wire braided hose or steel pipe.
The hydraulic air-supply of diesel fuel burner and fuel system more than accurately control air-supply in burner operation
Amount and fuel feed and their proportion.The mainly use from pushing wind manipulation and fuel supply operation to the system below
Method is more described in detail.
One, pushing wind manipulation
When burner operation needs to blow, firstly, supply air system starts, the first electromagnetic relief valve 5, the second electromagnetism overflow
The electromagnet of valve 8 is powered, and makes the first electromagnetic relief valve 5, the working connection of the second electromagnetic relief valve 8 directly opens connection hydraulic oil
Case；Then, the first variable pump 3 starting for driving diesel motor 14, the hydraulic oil in hydraulic oil container is sucked through the first oil filter 1
After flow through the first variable pump 3, the first check valve 6, the first electromagnetic relief valve 5 after flow back to fuel tank again, meanwhile, drive the first blower horse
The second variable pump 4 up to the 22, second blower motor 23 also starts, and the hydraulic oil in hydraulic oil container is sucked through the second oil filter 2
After flow through the second variable pump 4, second one-way valve 7, the second electromagnetic relief valve 8 after flow back to fuel tank again；First variable pump 3 and at this time
Two variable pumps 4 make to pump smooth starting all in oil suction under light condition and fuel-displaced；Then, blower motor system in supply air system
Work, the electromagnet power-off of the second electromagnetic relief valve 8 make the second electromagnetic relief valve 8 carry out overflow and are gone out with setting up the second variable pump 4
The pressure of hydraulic oil at mouthful, the hydraulic oil exported from fuel tank through the second oil filter 2, the second variable pump 4, second one-way valve 7, is removed
On a small quantity by outside 8 overflow oil return box of the second electromagnetic relief valve, the overwhelming majority enters the first proportional reversing valve 15, by using such as
The automatically controlled mode such as PLC or potentiometer inputs electric current of different sizes to 15 input control signal of the first proportional reversing valve to it
Signal, according to proportioning valve principle, the unlatching size and size of current of 15 valve port of the first proportional reversing valve are in ideal linear scale
Relationship, control electric current size can realize to the first proportional reversing valve 15 outlet oil liquid flow direction control and flow
The proportion adjustment of size, i.e., capable of reversing and regulating flow quantity, hydraulic oil pass through flow divider 21 after the first proportional reversing valve 15
Equally separately flow into the first blower motor 22 and the second blower motor 23, drive two motors rotation, motor rotary speed with into
The uninterrupted for entering hydraulic oil is directly proportional, and motor drives the blower of coaxially rigidly connected supply air system to rotate synchronously, and is
Fuel combustion provides air output that is sufficient, matching, to improve the economy of burning, the first blower motor 22 and the second blower horse
Fuel tank is flowed back to through the first proportional reversing valve 15, the second counterbalance valve 13 up to 23 fuel-displaced.
Two, fuel supplies
After supply air system starting, the operating of fuel system delayed startup.The electromagnet of first electromagnetic relief valve 5 powers off, and makes
First electromagnetic relief valve 5 carries out overflow to set up the pressure of the hydraulic oil in 3 exit of the first variable pump, the electricity of solenoid directional control valve 12
Magnet is powered, and connects reversal valve left position, and the hydraulic oil in fuel tank is unidirectional by the first oil filter 1, the first variable pump 3, first
After valve 6, in addition to passing through 5 overflow oil return box of the first electromagnetic relief valve on a small quantity, the overwhelming majority is flowed by the left positions of solenoid directional control valve 12
Enter diesel motor 14, driving diesel motor 14 rotates, and the discharge capacity by adjusting the first variable pump 3 can change the oil stream out of pump 3
Amount, the revolving speed of diesel motor 14 is directly proportional to flow, and diesel motor 14 is coupled with 25 coaxial rigid of diesel pump in fuel system,
Diesel pump 25 is driven to rotate synchronously, the fuel-displaced of diesel motor 14 flows back to fuel tank through the first counterbalance valve 11, and the first counterbalance valve 11 is returning
It is stable to play back pressure in oil circuit.The electromagnet before diesel pump 25 starts of third electromagnetic relief valve 27 is constantly in energization shape
State guarantees that diesel pump 25 can start in the unloaded state, the electromagnet power-off of third electromagnetic relief valve 27 after diesel pump 25 starts,
Third electromagnetic relief valve 27 is set to carry out overflow to set up the outlet oil pressure of diesel pump 25, diesel oil flows through third oil filter 24, diesel oil
After pump 25, third check valve 26, in addition to passing through 27 overflow oil return box of third electromagnetic relief valve on a small quantity, the overwhelming majority flows into the second ratio
Example reversal valve 29, according to proportioning valve principle, the size for controlling its input current signal can control the second proportional reversing valve 29
Valve port opening, realize that the actual ratio of diesel oil uninterrupted is adjusted, the outlet of the second proportional reversing valve 29 to fuel oil sprays
Mouth is realized to fuel nozzle and provides required amount of fuel for burning.
The controllers such as PLC can be used, according to setting process of combustion, proportioning valve and the control current signal of solenoid valve, system
The parameters such as flow, system pressure control above procedure, and diesel fuel burner hydraulic proportional control supply air system can be realized
With the automatic work of fuel system, the standard of the accurate control and the two quantity to air output needed for burner and fuel quantity is realized
Really matching improves combustion economization.
Embodiment 2
The hydraulic air-supply of the diesel fuel burner of embodiment 1 and fuel system are the starting by blower motor in use
Blow into burner, however, in the blower motor course of work there may be input pressure be more than its operating pressure, make blower
Motor overload operation impacts its service life, or even causes danger；In addition, disconnecting oil stream in the first proportional reversing valve 15
Moment, due to effect of inertia, blower motor is still rotated, and fuel feeding is already off at this time, will cause hydraulic shock, to blower horse
It reaches and supply air system damages.It under both situations, can all adversely affect, need effectively to avoid.Therefore, this reality
It applies example to optimize on the basis of embodiment 1, safety protection loop and braking feed circuit is added in supply air system,
Avoid the generation of above-mentioned two situations.
Specifically, braking feed circuit includes passing through sequentially connected 6th check valve 20 of pipeline, overflow valve 18 and third
Check valve 16；Wherein, the import of the 6th check valve 20 connects the oil outlet of blower motor, and the outlet of the 6th check valve 20 connects, overflow
The import of valve 18, the outlet of overflow valve 18 connect the import of third check valve 16, and the outlet of third check valve 16 connects blower motor
Oil inlet, and the outlet of overflow valve 18 also takes back hydraulic oil container through the second counterbalance valve 13.Safety protection loop includes the 4th unidirectional
Valve 17 and the 5th check valve 19；Wherein, the import of the 4th check valve 17 connects the outlet of overflow valve 18, and outlet connects the first ratio and changes
To valve 15, the import of the 5th check valve 19 connects the oil inlet of blower motor, and outlet connects the import of overflow valve 18.Third check valve
16 and the 5th check valve 19 blower motor connect by flow divider 21.
The system of the present embodiment passes through safety protection loop and braking feed circuit, it is ensured that the stabilization of blower motor work
Property and safety, they play more important function during burner operation.Safety protection loop and braking feed circuit
The course of work in system use is as follows:
For safety protection loop, when blower works and blows, when blower motor entrance oil circuit pressure is excessive, more than overflow
When valve 18 sets pressure, overflow valve 18 is opened, and oil liquid is overflowed back by the 5th check valve 19, overflow valve 18 and the 4th check valve 17
Hydraulic oil container protects Hydraulic Elements and system, plays the role of safeguard protection.By manually adjust the second variable pump 4 discharge capacity and
The discharge capacity of first blower motor 22, the second blower motor 23, thus it is possible to vary turn of the first blower motor 22, the second blower motor 23
Fast range, the range of speeds should be greater than the range of speeds of air output needed for providing fuel combustion.
For brake feed circuit, when blower stops working, the first proportional reversing valve 15 power-off cut-off, blower motor by
Effect of inertia rotation, the oil outlet oil liquid of blower motor are back to through the 6th check valve 20, overflow valve 18 and third check valve 16
The oil inlet of blower motor supplements oil liquid, and extra oil liquid makes wind through 13 hydraulic return fuel tank of the second counterbalance valve, 18 back pressure of overflow valve
Machine motor is gradually braked.
Example of the present invention is only that preferred embodiments of the present invention will be described, not to present inventive concept and
Range is defined, and under the premise of not departing from design philosophy of the present invention, this field engineers and technicians are to technology of the invention
The various changes and improvements that scheme is made should all fall into protection scope of the present invention.
Claims (8)
1. a kind of hydraulic air-supply of diesel fuel burner and fuel system, including supply air system and fuel system, it is characterised in that: described
Supply air system includes air-supply fuel feeding part, the first proportional reversing valve (15) and blower motor, and the blower motor passes through the first ratio
Example reversal valve (15) picks wind fuel feeding part, the blower of blower motor transmission connection burner；The fuel system includes fuel
Supply portion and the second proportional reversing valve (29), second proportional reversing valve of fuel supplying part lease making (29) connect the combustion of burner
Oil burner nozzle；
The supply air system further includes braking feed circuit, and the braking feed circuit includes passing through pipeline the sequentially connected 6th
Check valve (20), overflow valve (18) and third check valve (16)；The import of 6th check valve (20) meets going out for blower motor
Hydraulic fluid port, the outlet of third check valve (16) connect the oil inlet of blower motor；The outlet of the overflow valve (18) takes back hydraulic oil container.
2. a kind of hydraulic air-supply of diesel fuel burner according to claim 1 and fuel system, it is characterised in that: the air-supply
System further includes safety protection loop, and safety protection loop includes the 4th check valve (17) and the 5th check valve (19)；Described
The import of four check valves (17) connects the outlet of overflow valve (18), and outlet connects the first proportional reversing valve (15)；Described 5th is unidirectional
The import of valve (19) connects the oil inlet of blower motor, and outlet connects the import of overflow valve (18).
3. a kind of hydraulic air-supply of diesel fuel burner according to claim 2 and fuel system, it is characterised in that: the blower
Motor includes in parallel the first blower motor (22) and the second blower motor (23), first proportional reversing valve (15) it is fuel-displaced
Mouth shunts through flow divider (21) and is followed by the first blower motor (22) and the second blower motor (23)；The third check valve (16) and
5th check valve (19) connects blower motor by flow divider (21).
4. a kind of hydraulic air-supply of diesel fuel burner described in any one of -3 and fuel system according to claim 1, feature
Be: the air-supply fuel feeding part includes by sequentially connected second oil filter (2) of pipeline, the second variable pump (4) and second
Check valve (7), the second oil filter (2) import connect hydraulic oil container, and second one-way valve (7) outlet connects the commutation of the first ratio
The T mouth of the P mouth of valve (15), the first proportional reversing valve (15) takes back hydraulic oil container through the second counterbalance valve (13)；Described second is unidirectional
The second electromagnetic relief valve of outlet (8) of valve (7) connects hydraulic oil container.
5. a kind of hydraulic air-supply of diesel fuel burner according to claim 1 and fuel system, it is characterised in that: the fuel
Supply portion includes passing through the sequentially connected third oil filter (24) of pipeline, diesel pump (25) and the 7th check valve (26), described
The import of third oil filter (24) connects diesel fuel tanks, and the outlet of the 7th check valve (26) connects the oil inlet of the second proportional reversing valve (29)
Mouthful, the oil outlet of the second proportional reversing valve (29) connects the fuel nozzle of burner；The diesel pump (25) passes through diesel motor
(14) it drives；The outlet of 7th check valve (26) connects diesel fuel tanks through third electromagnetic relief valve (27).
6. a kind of hydraulic air-supply of diesel fuel burner according to claim 5 and fuel system, it is characterised in that: the fuel
System further includes feed power section, and feed power section includes being become by sequentially connected first oil filter (1) of pipeline, first
Amount pump (3) and the first check valve (6), the import of first oil filter (1) connect hydraulic oil container, the outlet of the first check valve (6)
The oil inlet of the diesel motor (14) is connect through solenoid directional control valve (12), the oil outlet of the diesel motor (14) is through the first back pressure
Valve (11) takes back hydraulic oil container；The outlet of first check valve (6) also takes back hydraulic oil container through the first electromagnetic relief valve (5).
7. a kind of application method of diesel fuel burner hydraulic air-supply and fuel system, including following operation:
One, pushing wind manipulation
The air-supply fuel feeding part of supply air system supplies hydraulic oil, blower motor to blower motor by the first proportional reversing valve (15)
The fanman of driving burner makees to blow to burner；The valve port of the first proportional reversing valve (15) is controlled by automatically controlled mode
Aperture adjusts the working flow size for entering blower motor, to control the wind speed and air quantity of burner air-supply；
When blower works and blows, when blower motor input pressure is more than that overflow valve (18) set pressure, overflow valve (18) is opened,
Hydraulic oil overflows back hydraulic oil container by the 5th check valve (19), overflow valve (18) and the 4th check valve (17), plays safe guarantor
Shield effect；When blower stops working, the first proportional reversing valve (15) cut-off, blower motor is rotated by effect of inertia, blower horse
The oil outlet oil liquid reached is back to the oil inlet of blower motor through the 6th check valve (20), overflow valve (18) and third check valve (16)
Mouth supplement oil liquid, overflow valve (18) back pressure brake blower motor gradually；
Two, fuel supplies
The part of the fuel supply of fuel system passes through the fuel nozzle fuel feeding of the second proportional reversing valve (29) to burner；Pass through electricity
Prosecutor formula controls the valve port opening of the second proportional reversing valve (29), the distributive value of fuel nozzle is adjusted, to control burner
Fuel feed.
8. the application method of a kind of diesel fuel burner hydraulic air-supply and fuel system according to claim 7, feature exist
In: in the fuel supply operating procedure, diesel pump (25) is driven by diesel motor (14) in part of the fuel supply, diesel oil horse
It is used as power source by the first variable pump (3) up to (14), and by the start and stop of solenoid directional control valve (12) control diesel motor (14).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811195165.3A CN109373348B (en) | 2018-10-15 | 2018-10-15 | A kind of diesel fuel burner is hydraulic to blow and fuel system and its application method |
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| CN201811195165.3A CN109373348B (en) | 2018-10-15 | 2018-10-15 | A kind of diesel fuel burner is hydraulic to blow and fuel system and its application method |
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| CN109373348B true CN109373348B (en) | 2019-09-13 |
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| CN114265455B (en) * | 2021-12-23 | 2023-04-14 | 军事科学院系统工程研究院军需工程技术研究所 | Air-fuel linkage adjusting system for low-power pressure atomization fuel combustor |
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| CN1082172C (en) * | 1998-07-21 | 2002-04-03 | 浙江大学 | Air oil proportional regulating device |
| CN2711542Y (en) * | 2004-04-30 | 2005-07-20 | 安徽仰望仁义锅炉厂 | Hydraulic burner |
| CN101403498B (en) * | 2008-11-21 | 2013-03-13 | 威海市锅炉制造厂 | Vehicle-mounted hydraulic combustor |
| DE102012008941A1 (en) * | 2012-05-08 | 2013-11-14 | Robert Bosch Gmbh | Method for regulating combustion of bio-oil in oil-fired boiler, involves detecting pressure and viscosity of fuel, and influencing pressure and viscosity of fuel under consideration of detected pressure and detected viscosity |
| CN102758713B (en) * | 2012-07-26 | 2015-09-30 | 任一虎 | Electrically controlled dual-fuel injector assembly and method of work thereof |
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