CN107387499B - A kind of hydraulic device suitable for underwater sound emission Burning rate testing system - Google Patents
A kind of hydraulic device suitable for underwater sound emission Burning rate testing system Download PDFInfo
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- CN107387499B CN107387499B CN201710735918.4A CN201710735918A CN107387499B CN 107387499 B CN107387499 B CN 107387499B CN 201710735918 A CN201710735918 A CN 201710735918A CN 107387499 B CN107387499 B CN 107387499B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
- F15B1/033—Installations or systems with accumulators having accumulator charging devices with electrical control means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
Abstract
The invention belongs to underwater sound emission Burning rate testing correlative technology fields, it discloses a kind of hydraulic devices suitable for underwater sound emission Burning rate testing system, the hydraulic device includes pressure charging system, the pressure charging system includes pressurizing pack, and the pressurizing pack includes the fuel tank being once connected by pipeline, plunger pump, second one-way valve, pressure oil fine filter, the first proportional pressure-reducing valve, the second solenoid directional control valve, water pressurizer, stainless steel high-pressure water valve and combustion chamber, is connected to the variable-frequency motor of the plunger pump and is connected to the water tank of the water pressurizer；The water pressurizer includes two concatenated hydraulic cylinders that are isometrical, concentric, sharing a piston rod, and two hydraulic cylinders are respectively hydraulic oil inlet hydraulic cylinder and outlet hydraulic cylinder, and the hydraulic oil inlet hydraulic cylinder is connected to second solenoid directional control valve；The outlet hydraulic cylinder is connected with the water tank.Cost is relatively low by the present invention, and versatility is preferable, and precision is higher, and is suitable for wet hyperbaric environment.
Description
Technical field
The invention belongs to underwater sound emission Burning rate testing correlative technology fields, are suitable for more particularly, to one kind underwater
The hydraulic device of sound emission Burning rate testing system.
Background technique
It during solid propellant research and development, sample, batch production, needs to make an appraisal to combustibility, to measure
Whether the propellant under new process meets design requirement.In evaluation combustibility, propellant burning rate, burning rate pressure exponent, temperature
Quick coefficient is important reference indicator.In these parameters, burn rate is the evaluation index of most critical.Either Pressure Exponent or temperature sensitive
Coefficient is sought all being finally reflected in the measurement of burn rate, and a stable wet hyperbaric environment in the test process of burn rate
Realization be vital.
Currently, the country is mostly pump pressure type for realizing the mode of stable wet hyperbaric environment, however what pump pressure type used
It is the pressure of solenoid valve control water, there are easily leakage, difficult sealing, control precision are far from satisfying test when high pressure for high-pressure water valve
It is required that, research and develop the problems such as at high cost, poor universality, existing Burning rate testing system is far from actual test demand is met, especially
It is in the mesohigh pressure range of 15MPa or more.Correspondingly, it needs, establishes a set of to adapt to solid propellant manufacture
The hydraulic system for meeting high pressure Burning rate testing is most important.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides one kind to be suitable for underwater sound emission burn rate
It the characteristics of hydraulic device of test macro, voltage regulation way based on existing underwater sound emission Burning rate testing system, studies and sets
The hydraulic device suitable for underwater sound emission Burning rate testing system is counted, the hydraulic device can be SOLID PROPELLANT COMBUSTION
It can test and a high-precision hyperbaric environment is provided, solve current solid propellant combustion rate Performance Test System and be unable to satisfy reality
The problem of border testing requirement, can accurately realize a stable wet hyperbaric environment by feedback control, with preferably real
Existing SOLID PROPELLANT COMBUSTION performance test.
To achieve the above object, the present invention provides a kind of hydraulic dresses suitable for underwater sound emission Burning rate testing system
It sets comprising pressure charging system and the voltage-stabilizing system being connected with the pressure charging system, it is characterised in that：
The pressure charging system includes pressurizing pack and the pressure charging system feedback component for being connected to the pressurizing pack, the increasing
Pressure system feedback component is used to detect and feed back the temperature, liquid level and pressure of the pressure charging system；The pressurizing pack includes one
The secondary fuel tank being connected by pipeline, plunger pump, second one-way valve, pressure oil fine filter, the first proportional pressure-reducing valve, the second electromagnetism change
To valve, water pressurizer, stainless steel high-pressure water valve and combustion chamber, it is connected to the variable-frequency motor of the plunger pump and is connected to the water
The water tank of booster；The water pressurizer include two it is concatenated it is isometrical, concentric, share a piston rod hydraulic cylinders, two
Hydraulic cylinder is respectively hydraulic oil inlet hydraulic cylinder and outlet hydraulic cylinder, and the hydraulic oil inlet hydraulic cylinder is that double acting load is hydraulic
Cylinder is connected to second solenoid directional control valve；The outlet hydraulic cylinder is connected by a check valve with the water tank,
Hydraulic cylinder is loaded for single-acting；The voltage-stabilizing system is for stablizing the indoor pressure of burning.
Further, the hydraulic oil inlet hydraulic cylinder realizes the work by the commutation of second solenoid directional control valve
The propulsion and recycling of stopper rod；The outlet hydraulic cylinder realizes that oil pressure is converted to hydraulic pressure based on the piston rod stress balance.
Further, the pressurizing pack further include overflow valve, it is the first solenoid directional control valve, ball valve, cooler, first unidirectional
Valve and oil return fine filter, the oil return fine filter are arranged on the fuel tank；The cooler connects after connecting with the ball valve
In the oil return fine filter, one end of first solenoid directional control valve is connected to the ball valve, and the other end is connected to described second
On pipeline between check valve and the plunger pump；The entrance of first check valve is connected to the ball valve and first electricity
Pipeline between magnetic reversal valve, outlet are connected to the pipeline between the cooler and the oil return fine filter；The overflow
The both ends of valve are connected to the pipeline between the entrance and the second one-way valve and the pressure oil fine filter of the ball valve.
Further, the pressure charging system feedback component include liquid level sensor, temperature sensor, the first pressure measuring tie-in and
First shatter-proof pressure gauge with back connection, the liquid level sensor and the temperature sensor, which are respectively separated, to be arranged on the fuel tank；Institute
The one end for stating the first pressure measuring tie-in is connected to pipeline between the plunger pump and the second one-way valve, and the other end is connected to institute
State the first shatter-proof pressure gauge with back connection.
Further, the voltage-stabilizing system includes the first solenoid valve and the third accumulation of energy for being connected to first solenoid valve
Device, first solenoid valve are connected to the fuel tank.
Further, the voltage-stabilizing system further includes the second solenoid valve for being connected to the fuel tank, is connected to described second
The third solenoid valve of solenoid valve and the first accumulator for being connected to the third solenoid valve.
Further, the voltage-stabilizing system further includes the 4th solenoid valve and is connected to the second of described 4th solenoid valve one end
Accumulator, the other end of the 4th solenoid valve are also respectively connected between the second solenoid valve and the third solenoid valve
Pipeline between pipeline and first proportional pressure-reducing valve and second solenoid directional control valve.
Further, the voltage-stabilizing system further includes that one end is connected to the water pressurizer and the stainless steel high-pressure water valve
Between pipeline the 4th accumulator, be connected to the gas booster of the 4th accumulator other end and be connected to gas pressurization
The source nitrogen of device.
Further, the voltage-stabilizing system further includes the electropneumatic ball valve for being connected to the 4th accumulator entrance, connects
It is connected to the gas control counterbalance valve of the electropneumatic ball valve, connects the electrical ratio of the electropneumatic ball valve and the gas control counterbalance valve
The decompression table of pipeline between example valve and the connection source nitrogen and the electropneumatic ball valve and the electric Proportion valve.
Further, the voltage-stabilizing system further includes the second proportional pressure-reducing valve and connection second proportional pressure-reducing valve and institute
The 4th solenoid directional control valve of gas booster is stated, second proportional pressure-reducing valve, which is connected to the pressure oil fine filter and described first, to be compared
Pipeline between example pressure reducing valve.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, it is provided by the invention suitable
Hydraulic device for underwater sound emission Burning rate testing system mainly has the advantages that：
1. the hydraulic device provides high pressure liquid pressure oil by plunger pump, realize that ratio is depressurized by accumulator group
The stabilization of valve, pressure reducing valve and solenoid directional control valve inlet pressure realizes the pressurization to combustion chamber by water pressurizer, finally by
Accumulator carries out pressure maintaining to indoor pressure of burning, to realize high-precision stable wet hyperbaric environment；
2. cost is relatively low for the hydraulic device, versatility is stronger, and the solid propellant that can be used for various models carries out water
Lower burn rate performance test, and can be used for most of occasions for needing wet hyperbaric environment；
3. can realize the Quick-pressurizing to combustion chamber by the way of hydraulic booster, while by accumulator in combustion chamber
Pressure carry out pressure maintaining, realize high-precision stable wet hyperbaric environment, and efficiency is higher.
Detailed description of the invention
Fig. 1 is the hydraulic device suitable for underwater sound emission Burning rate testing system that better embodiment of the present invention provides
Schematic diagram.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, wherein：21A- fuel tank,
22A- air filter, 23A- variable-frequency motor, 24A- plunger pump, 25A- electric heater, 26A- fuel outlet valve, 27A- cooler, 28A- ball
Valve, the first check valve of 29A-, 21B- pressure oil fine filter, 22B- overflow valve, the first solenoid directional control valve of 23B-, 24B- second are unidirectional
Valve, the first proportional pressure-reducing valve of 25B-, 26B- pressure reducing valve, the second solenoid directional control valve of 27B-, 28B- water pressurizer, 29B- stainless steel are high
Pressure water valve, 21C- oil return fine filter, 22C- drain valve, the combustion chamber 23C-, 24C- third solenoid directional control valve, 25C- liquidometer,
26C- water tank, 31A- liquid level sensor, 32A- temperature sensor, the first pressure measuring tie-in of 33A-, the second pressure measuring tie-in of 34A-, 35A-
Third pressure measuring tie-in, the shatter-proof pressure gauge with back connection of 36A- first, the shatter-proof pressure gauge with back connection of 37A- second, axial pressure that 38A- third is shatter-proof
Power table, 39A- first pressure transmitter, 31B- second pressure transmitter, 32B- third pressure transmitter, the 4th pressure of 33B- become
Send device, the 5th pressure transmitter of 34B-, the first solenoid valve of 41-, 42- second solenoid valve, 43- third solenoid valve, the 4th electromagnetism of 44-
Valve, the first accumulator of 45-, the second accumulator of 46-, 47- third accumulator, the second proportional pressure-reducing valve of 51A-, the 4th electromagnetism of 52A-
Reversal valve, 53A- source nitrogen, 54A- gas booster, the 4th accumulator of 55A-, 56A- third check valve, 57A- accumulator inflator
Tool, 58A- electropneumatic ball valve, 59A- decompression table, 51B- electric Proportion valve, 52B- gas control counterbalance valve.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Referring to Fig. 1, better embodiment offer of the present invention is suitable for the hydraulic of underwater sound emission Burning rate testing system
Device, the hydraulic device provide high pressure liquid pressure oil by plunger pump, and proportional pressure-reducing valve, decompression are realized by accumulator group
The stabilization of valve and solenoid directional control valve inlet pressure realizes the pressurization to combustion chamber by water pressurizer, finally by accumulator
To burning, indoor pressure carries out pressure maintaining, to realize high-precision stable wet hyperbaric environment.The hydraulic device is in solid
The indoor pressure of burning will be kept to stablize in ± 0.05MPa floating range in propellant burning property test process, for surveying
The dechforination in combustion and follow-up study solid propellant energy rate of release for trying solid propellant are of great significance.
The hydraulic device includes pressure charging system and voltage-stabilizing system, and the voltage-stabilizing system is connected with the pressure charging system.
The pressure charging system uses hydraulic booster mode comprising pressurizing pack and the pressure charging system being connected with the pressurizing pack are anti-
Present component.
The pressurizing pack include fuel tank 21A, air filter 22A, variable-frequency motor 23A, plunger pump 24A, electric heater 25A,
Fuel outlet valve 26A, cooler 27A, ball valve 28A, the first check valve 29A, pressure oil fine filter 21B, overflow valve 22B, the first electromagnetism change
To valve 23B, second one-way valve 24B, the first proportional pressure-reducing valve 25B, pressure reducing valve 26B, the second solenoid directional control valve 27B, water pressurizer
28B, stainless steel high-pressure water valve 29B, oil return fine filter 21C, drain valve 22C, combustion chamber 23C, third solenoid directional control valve 24C, liquid
Position meter 25C and water tank 26C.
For storing hydraulic oil, the fuel outlet valve 26A is arranged on the left side wall of the fuel tank 21A fuel tank 21A.Institute
It states liquidometer 25C to be arranged on the fuel tank 21A, is used to measure the liquid level of the hydraulic oil in the fuel tank 21A.The air filter
Device 22A, the plunger pump 24A, the electric heater 25A and the oil return fine filter 21C are arranged at intervals on the fuel tank 21A
On, the variable-frequency motor 23A is connected to the plunger pump 24A, is used to drive the plunger pump 24A rotation with pressure supply.This reality
It applies in mode, the output flow of the plunger pump 24A is adjusted by the revolving speed of variable-frequency motor 23A described in Frequency Converter Control, is made
It is adjustable to obtain flow system flow.
The entrance of the second one-way valve 24B and outlet are connected to the outlet and the pressure oil of the plunger pump 24A
The entrance of fine filter 21B.The first proportional pressure-reducing valve 25B connect the pressure oil fine filter 21B outlet and it is described second electricity
Magnetic reversal valve 27B.In present embodiment, the second solenoid directional control valve 27B is three position four-way electromagnetic valve.
The water pressurizer 28B is isometrical, concentric by two, shares the hydraulic cylinder of a piston rod is connected in series, two liquid
Cylinder pressure is respectively hydraulic oil inlet hydraulic cylinder and outlet hydraulic cylinder, and the hydraulic oil inlet hydraulic cylinder is that double acting load is hydraulic
Cylinder is connected to the second solenoid directional control valve 27B.The hydraulic oil inlet hydraulic cylinder passes through second solenoid directional control valve
27B's commutates to realize the propulsion and recycling of piston rod.The outlet hydraulic cylinder passes through a check valve and the water tank 26C phase
Connection loads hydraulic cylinder for single-acting, realizes that oil pressure is converted to hydraulic pressure based on the piston rod stress balance.
The stainless steel high-pressure water valve 29B connection outlet hydraulic cylinder and the combustion chamber 23C, the drain valve 22C
It is arranged on the combustion chamber 23C.The pressure reducing valve 26B connect the pressure oil fine filter 21B outlet and the third electromagnetism
Reversal valve 24C, the third solenoid directional control valve 24C are connected to the stainless steel high-pressure water valve 29B.It is described in present embodiment
Third solenoid directional control valve 24C can control the pressure in its exit in 10MPa.
The cooler 27A is connected to the oil return fine filter 21C, first electromagnetism after connecting with the ball valve 28A
One end of reversal valve 23B is connected to the ball valve 28A, and the other end is connected to the second one-way valve 24B and the plunger pump 24A
Between pipeline on.The entrance of the first check valve 29A is connected to the ball valve 28A and the first solenoid directional control valve 23B
Between pipeline, outlet is connected to pipeline between the cooler 27A and the oil return fine filter 21C.The overflow valve
The both ends of 22B be connected to the ball valve 28A entrance and the second one-way valve 24B and the pressure oil fine filter 21B it
Between pipeline.
The pressure charging system feedback component include liquid level sensor 31A, temperature sensor 32A, the first pressure measuring tie-in 33A,
Second pressure measuring tie-in 34A, third pressure measuring tie-in 35A, the first shatter-proof pressure gauge with back connection 36A, the second shatter-proof pressure gauge with back connection 37A,
Third is shatter-proof pressure gauge with back connection 38A, first pressure transmitter 39A, second pressure transmitter 31B, third pressure transmitter 32B,
4th pressure transmitter 33B and the 5th pressure transmitter 34B.The liquid level sensor 31A and temperature sensor 32A difference
It is arranged at intervals on the fuel tank 21A.One end of the first pressure measuring tie-in 33A is connected to the plunger pump 24A and described the
Pipeline between two check valve 24B, the other end are connected to the described first shatter-proof pressure gauge with back connection 36A.Second pressure measuring tie-in
One end of 34A is connected to the pipeline between the pressure oil fine filter 21B and the first proportional pressure-reducing valve 25B, other end connection
In the described second shatter-proof pressure gauge with back connection 37A.First pressure transmitter 39A setting the second pressure measuring tie-in 34A with
On pipeline between the pressure oil fine filter 21B.One end of the third pressure measuring tie-in 35A is connected to the first ratio decompression
Pipeline between valve 25B and the second solenoid directional control valve 27B, the other end are connected to the shatter-proof pressure gauge with back connection 38A of the third.
The pipe between the first proportional pressure-reducing valve 25B and the third pressure measuring tie-in 35A is arranged in the second pressure transmitter 31B
On the road.The pipe between the stainless steel high-pressure water valve 29B and the outlet hydraulic cylinder is arranged in the third pressure transmitter 32B
On the road, the pipe between the combustion chamber 23C and the stainless steel high-pressure water valve 29B is arranged in the 5th pressure transmitter 34B
On the road.The 4th pressure transmitter 33B is set to the voltage-stabilizing system.
The pressure of the hydraulic system of the hydraulic device drives the plunger pump 24A to provide by the variable-frequency motor 23A, institute
The pressure stated in the 23C of combustion chamber is provided by the water pressurizer 28B.The inlet pressure of the hydraulic oil inlet oil cylinder passes through described
First proportional pressure-reducing valve 25B is adjusted, and pressure controls precision 0.5% or more.The theoretical pressure ratio of the water pressurizer 28B
It is 1, can be realized by controller inlet pressure and accurately control its output pressure.The stainless steel high-pressure water valve 29B control increases
The on-off on road is pushed back, the drain valve 22C is used to replace the water in the combustion chamber 23C.Pass through the 5th pressure transmitter
Pressure in combustion chamber 23C described in 34B Real-time Feedback, and according to its pressure come micro- to the first proportional pressure-reducing valve 25B progress
It adjusts to guarantee that the pressure in the combustion chamber 23C is reliable and stable.The overflow valve 22B is system oil pressure increase abnormal and
It can guarantee system safety when more than 30MPa with safety overflow is realized.It can be made by the opening and closing of the first solenoid directional control valve 23B
System oil pressure is maintained in the reasonable range of comparison.The pressure oil fine filter 21B and oil return fine filter 21C is pair
Hydraulic oil is filtered to guarantee the clean of hydraulic oil.In addition, system oil temperature may when systems stay keeps high-voltage operation
It increases, it can be by system oil temperature drop as low as in the working range of hydraulic oil by the cooler 27A.The pressure reducing valve 26B is
Keeping its back pressure is 10MPa to control the on-off of the third solenoid directional control valve 24C and then control the stainless steel high pressure
Water valve 29B's cut-offs, and the oil return fine filter 21C is used to the pollutant for generating or invading in system return to the fuel tank
Captured before 21A with ensure to flow back to the hydraulic oil of the fuel tank 21A be it is clean, the drain valve is opened after the completion of test
22C is the liquid in the combustion chamber 23C to be discharged.The liquidometer 25C is for hydraulic oil in fuel tank 21A described in real-time monitoring
Liquid level, and the water tank 26C is to provide water source for the water pressurizer 28B.
The voltage-stabilizing system includes entrance stabipack and the outlet stabipack for being connected to the entrance stabipack.Institute
Stating entrance stabipack includes the first solenoid valve 41, second solenoid valve 42, third solenoid valve 43, the 4th solenoid valve 44, first storage
It can device 45, the second accumulator 46 and third accumulator 47.First solenoid valve 41 is connected to the fuel tank 21A, the third
Accumulator 47 is connected to first solenoid valve 41.In present embodiment, the volume of the third accumulator 47 is 6.3L, inflation
Pressure is 8MPa.Pipeline and the second pressure measuring tie-in 34A between first solenoid valve 41 and the third accumulator 47
Pipeline between the first pressure transmitter 39A is connected.One end of the second solenoid valve 42 is connected to described first
Pipeline between solenoid valve 41 and the fuel tank 21A, the other end are connected to the third solenoid valve 43.First accumulator 45
It is connected to the third solenoid valve 43.In present embodiment, the volume of first accumulator 45 is 2.5L, and inflation pressure is
2.5MPa.One end of 4th solenoid valve 44 connects the pipeline between the third solenoid valve 43 and the second solenoid valve 42
And the pipeline between the third pressure measuring tie-in 35A and the second pressure transmitter 31B.
The outlet stabipack includes the second proportional pressure-reducing valve 51A, the 4th solenoid directional control valve 52A, source nitrogen 53A, gas
Booster 54A, the 4th accumulator 55A, third check valve 56A, accumulator inflatable tool 57A, electropneumatic ball valve 58A, decompression
Table 59A, electric Proportion valve 51B and gas control counterbalance valve 52B.One end of the second proportional pressure-reducing valve 51A is connected to the decompression
Pipeline between valve 26B and the pressure oil fine filter 21B, the other end are connected to the 4th solenoid directional control valve 52A.Described 4th
Solenoid directional control valve 52A is connected to the middle part of the gas booster 54A.Four third check valve 56A are connected to two-by-two
The both ends of the gas booster 54A, and the outlet of third check valve 56A described in two of them is connected to the gas booster
The both ends of 54A, outlet are all connected to the source nitrogen 53A；The entrance of other two third check valve 56A is connected to
The both ends of the gas booster 54A, outlet are connected to the accumulator inflatable tool 57A after being connected.The accumulator fills
Gas tool 57A is connected to the entrance of the 4th accumulator 55A, and the outlet of the 4th accumulator 55A is connected to the water and increases
Pipeline between depressor 28B and the third pressure transmitter 32B.In present embodiment, the volume of the 4th accumulator 55A
For 10L.The electropneumatic ball valve 58A be connected to the 4th pressure transmitter 33B and the accumulator inflatable tool 57A it
Between pipeline, the electric Proportion valve 51B connection electropneumatic ball valve 58A and gas control counterbalance valve 52B.The gas control
Counterbalance valve 52B is connected to the electropneumatic ball valve 58A, and gas is discharged by the gas control counterbalance valve 52B.The decompression table
One end of 59A is connected to the pipeline between the electropneumatic ball valve 58A and the electric Proportion valve 51B, and the other end is connected to
The source nitrogen 53A.In present embodiment, the decompression table 59A can be exported nitrogen pressure control to 0.8MPa.
The entrance stabipack main function is to stablize the first proportional pressure-reducing valve 25B, the pressure reducing valve 26B, institute
State the inlet pressure of the second proportional pressure-reducing valve 51A and the second solenoid directional control valve 27B.When start-up operation, described in closing
First solenoid valve 41 and the second solenoid valve 42；Institute is opened when the pressure that the combustion chamber 23C needs is lower than 8MPa
Third solenoid valve 43 is stated, the 4th solenoid valve 44 is closed；It is beaten when the pressure that the combustion chamber 23C needs is higher than 8MPa
The 4th solenoid valve 44 is opened, the third solenoid valve 43 is closed.
The outlet stabipack main function is the pressure stablized in the combustion chamber 23C.According to the combustion chamber 23C
Required pressure, sets the pressure of the second proportional pressure-reducing valve 51A, and opens the source nitrogen 53A and the 4th electromagnetism changes
To valve 52A, nitrogen is filled with into the 4th accumulator 55A by the gas booster 54A.As the 4th accumulator 55A
After interior pressure reaches requirement, the 4th solenoid directional control valve 52A is closed.In the pressurization of the combustion chamber 23C, work as institute
When stating that pressure is more than the pressure in the 4th accumulator 55A in the 23C of combustion chamber, the 4th accumulator 55A start to work with
Pressure in the combustion chamber 23C is kept to stablize increase, until reaching required pressure.Needed for pressure in the 23C of combustion chamber reaches
After pressure, the 4th accumulator 55A can be such that the pressure in the combustion chamber 23C keeps.When in the 4th accumulator 55A
When pressure needed for pressure is higher than the combustion chamber 23C, need to carry out pressure release processing to the 4th accumulator 55A, specifically,
The electropneumatic ball valve 58A is opened, and gives mono- setting pressure of the electric Proportion valve 51B, passes through the electric Proportion valve
51B controls the opening and closing of the gas control counterbalance valve 52B, to achieve the purpose that carry out pressure release to the 4th accumulator 55A, lets out
The electropneumatic ball valve 58A is closed after the completion of pressure.
Hydraulic device provided by the invention suitable for underwater sound emission Burning rate testing system, the hydraulic device pass through column
Plug pump realizes proportional pressure-reducing valve, pressure reducing valve and solenoid directional control valve inlet pressure by accumulator group to provide high pressure liquid pressure oil
Stabilization, the pressurization to combustion chamber is realized by water pressurizer, the indoor pressure of burning is protected finally by accumulator
Pressure, to realize high-precision stable wet hyperbaric environment.The hydraulic device is in SOLID PROPELLANT COMBUSTION performance test process
It is middle that the indoor pressure of burning will be kept to stablize in ± 0.05MPa floating range, for testing the combustibility of solid propellant
Parameter and follow-up study solid propellant energy rate of release are of great significance.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of hydraulic device suitable for underwater sound emission Burning rate testing system comprising pressure charging system and with the pressurization be
The voltage-stabilizing system that system is connected, it is characterised in that：
The pressure charging system includes pressurizing pack and the pressure charging system feedback component for being connected to the pressurizing pack, the pressurization system
System feedback component is used to detect and feed back the temperature, liquid level and pressure of the pressure charging system；The pressurizing pack includes successively leading to
Fuel tank that piping is connected, plunger pump, second one-way valve, pressure oil fine filter, the first proportional pressure-reducing valve, the second electromagnetic switch
Valve, water pressurizer, stainless steel high-pressure water valve and combustion chamber are connected to the variable-frequency motor of the plunger pump and are connected to the water increasing
The water tank of depressor；The water pressurizer includes two concatenated hydraulic cylinders that are isometrical, concentric, sharing a piston rod, two liquid
Cylinder pressure is respectively hydraulic oil inlet hydraulic cylinder and outlet hydraulic cylinder, and the hydraulic oil inlet hydraulic cylinder is that double acting load is hydraulic
Cylinder is connected to second solenoid directional control valve；The outlet hydraulic cylinder is connected by a check valve with the water tank,
Hydraulic cylinder is loaded for single-acting；The voltage-stabilizing system is for stablizing the indoor pressure of burning；
The voltage-stabilizing system further includes the pipeline that one end is connected between the water pressurizer and the stainless steel high-pressure water valve
4th accumulator, the gas booster for being connected to the 4th accumulator other end and the source nitrogen for being connected to the gas booster；
The voltage-stabilizing system further includes the electropneumatic ball valve for being connected to the 4th accumulator entrance, is connected to the electropneumatic ball
Described in the gas control counterbalance valve of valve, the electric Proportion valve for connecting the electropneumatic ball valve and the gas control counterbalance valve are connected with one end
Source nitrogen and the other end connect the decompression table of the pipeline between the electropneumatic ball valve and the electric Proportion valve.
2. being suitable for the hydraulic device of underwater sound emission Burning rate testing system as described in claim 1, it is characterised in that：It is described
Hydraulic oil inlet hydraulic cylinder realizes the propulsion and recycling of the piston rod by the commutation of second solenoid directional control valve；It is described
Outlet hydraulic cylinder realizes that oil pressure is converted to hydraulic pressure based on the piston rod stress balance.
3. being suitable for the hydraulic device of underwater sound emission Burning rate testing system as described in claim 1, it is characterised in that：It is described
Pressurizing pack further includes overflow valve, the first solenoid directional control valve, ball valve, cooler, the first check valve and oil return fine filter, and described time
Olein filter is arranged on the fuel tank；The cooler is connected to the oil return fine filter after connecting with the ball valve, described
One end of first solenoid directional control valve is connected to the ball valve, and the other end is connected between the second one-way valve and the plunger pump
Pipeline on；The entrance of first check valve is connected to the pipeline between the ball valve and first solenoid directional control valve,
Outlet is connected to the pipeline between the cooler and the oil return fine filter；The both ends of the overflow valve are connected to described
Pipeline between the entrance of ball valve and the second one-way valve and the pressure oil fine filter.
4. the hydraulic device as described in any one of claims 1-3 suitable for underwater sound emission Burning rate testing system, feature
It is：The pressure charging system feedback component includes liquid level sensor, temperature sensor, the first pressure measuring tie-in and the first shatter-proof axial direction
Pressure gauge, the liquid level sensor and the temperature sensor, which are respectively separated, to be arranged on the fuel tank；Described first surveys crimping
One end of head is connected to the pipeline between the plunger pump and the second one-way valve, and the other end is connected to the described first shatter-proof axis
To pressure gauge.
5. the hydraulic device as described in any one of claims 1-3 suitable for underwater sound emission Burning rate testing system, feature
It is：The voltage-stabilizing system includes the first solenoid valve and the third accumulator for being connected to first solenoid valve, first electricity
Magnet valve is connected to the fuel tank.
6. being suitable for the hydraulic device of underwater sound emission Burning rate testing system as claimed in claim 5, it is characterised in that：It is described
Voltage-stabilizing system further includes the second solenoid valve for being connected to the fuel tank, the third solenoid valve for being connected to the second solenoid valve and company
It is connected to the first accumulator of the third solenoid valve.
7. being suitable for the hydraulic device of underwater sound emission Burning rate testing system as claimed in claim 6, it is characterised in that：It is described
Voltage-stabilizing system further includes the 4th solenoid valve and the second accumulator for being connected to described 4th solenoid valve one end, the 4th solenoid valve
The other end be also respectively connected with pipeline between the second solenoid valve and the third solenoid valve and first ratio subtracts
Pipeline between pressure valve and second solenoid directional control valve.
8. the hydraulic device as described in any one of claims 1-3 suitable for underwater sound emission Burning rate testing system, feature
It is：The voltage-stabilizing system further includes the second proportional pressure-reducing valve and connection second proportional pressure-reducing valve and the gas booster
4th solenoid directional control valve, second proportional pressure-reducing valve are connected between the pressure oil fine filter and first proportional pressure-reducing valve
Pipeline.
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| CN107906069B (en) * | 2017-12-12 | 2024-01-09 | 南京钢铁股份有限公司 | Hydraulic valve table of square and round combined small square billet withdrawal and straightening machine and control method |
| CN113339335B (en) * | 2021-06-16 | 2022-11-22 | 海南浙江大学研究院 | Servo actuating system for pressurization ejection |
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