CN104215736A - High-pressure adjustable-temperature laser ignition experimental device - Google Patents
High-pressure adjustable-temperature laser ignition experimental device Download PDFInfo
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- CN104215736A CN104215736A CN201410519983.XA CN201410519983A CN104215736A CN 104215736 A CN104215736 A CN 104215736A CN 201410519983 A CN201410519983 A CN 201410519983A CN 104215736 A CN104215736 A CN 104215736A
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Abstract
The invention discloses a high-pressure adjustable-temperature laser ignition experimental device, comprising a laser lens cooling device and an adjustable-temperature combustion chamber; the adjustable-temperature combustion chamber comprises a combustion chamber top cover, a combustion chamber shell, a glass gland, a test piece support seat, a combustion chamber bottom cover and a cavity sealing plate; the laser lens cooling device comprises a water cooler outer shell, a lens clamp ring, a water cooler inner shell and a laser focus lens; according to the high-pressure adjustable-temperature laser ignition experimental device, the sealed combustion chamber and the combustion chamber bottom cover with a cavity are used for solving the problem that the laser ignition experimental device cannot achieve adjustment on pressure, temperature and gas composition; due to the structure that a laser lens, an O-shaped ring and the lens clamping ring are respectively arranged at the two-stage stepped hole section and the threaded hole section at the center of the water cooler inner shell, the problem that detachability and leakproofness of the laser lens cannot be achieved at the same time; different environmental parameters are provided for laser irradiation experiments, experimental cost is saved, and experimental contents are enriched.
Description
Technical field
The invention belongs to material ignition or ablation property experimental study field, particularly a kind of laser irradiation experimental provision.
Background technology
In research solid propellant ignition burning performance, although the mode of igniting is a lot, but laser is as radiation source, because of its export energy high, and exposure time and output energy adjustable, can independent of initial temperature, pressure and gas group grade environmental parameter select energy density, decrease the thermal loss in experimentation and heterogeneous effect, favorable repeatability, the advantages such as electromagnetism interference, have become the Novel ignition mode of research solid propellant both at home and abroad.In the research process of laser irradiation material, it is inadequate for only changing laser energy density and exposure time, also needs to study the impact on material igniting burning performance or ablation resistance of temperature, pressure and environmental gas component.So just need to build a multi-functional laser irradiation experiment porch.At present for the laser irradiation experimental provision of experimental study, mostly can realize the adjustment of pressure and gas composition, but the adjustment of temperature can not be realized, as the laser ignition experimental provision mentioned in " Laser-induced ignition of solid propellants for gas generators " document, pressure and gas composition can be regulated, but for the adjustment of temperature, can only be realized by the temperature changing propellant self, and can not the temperature of adjusting ambient, this greatly have impact on experiment effect, can not meet the demand of further experiment research.
Summary of the invention
The object of the present invention is to provide one can simultaneously adjusting ambient pressure, temperature and gas composition, and experimentally can require to change the laser lens of experimental provision thus reach the object high pressure resistant temp. controllable laser ignition experimental provision changing spot size.
The technical solution realizing the object of the invention is:
A kind of high pressure resistant temp. controllable laser ignition experimental provision, comprise laser lens cooling device and temp. controllable firing chamber, this laser lens cooling device is positioned at the top of temp. controllable firing chamber; Temp. controllable firing chamber comprises firing chamber top cover, burning chamber shell, window glass gland, test specimen supporting seat, firing chamber bottom and cavities seals plate, perforate on combustion chamber shell body sidewall, firing chamber top cover is arranged at the top of burning chamber shell, is tightly connected with burning chamber shell; Firing chamber bottom is arranged at bottom burning chamber shell, is tightly connected with burning chamber shell; Firing chamber bottom bottom slot, cavities seals plate is arranged at bottom the bottom of firing chamber, and be tightly connected with firing chamber bottom, fluting bottom cavities seals plate and firing chamber bottom surrounds cavity, cavity has import and outlet on the sidewall of firing chamber bottom, test specimen supporting seat is arranged in burning chamber shell, is vertically fixed on the center of firing chamber bottom end face; The sidewall of burning chamber shell is provided with window, and on the position of window and sidewall, stagger in the position of perforate, and window is provided with window glass gland, window glass gland and window are tightly connected; Laser lens cooling device comprises water cooler shell, eyeglass hold-down ring, water cooler inner casing and laser condensing lens, the outer wall of water cooler inner casing is made up of three concentric columns, and radius increases progressively from top to bottom step by step, water cooler inner casing inwall surrounds two sections of concentric column chambeies, radius increases progressively from top to bottom step by step, lower semisection cylindrical cavity in water cooler inner casing is circumferentially with annular groove, O RunddichtringO is provided with in annular groove, the width of O RunddichtringO is greater than the degree of depth of groove, Liang Duan cylindrical cavity UNICOM and run through whole water cooler inner casing; Laser condensing lens is arranged in water cooler inner casing, and the radius of laser condensing lens is greater than the upper semisection cylindrical cavity radius in water cooler inner casing, eyeglass hold-down ring is arranged in the lower semisection cylindrical cavity of water cooler inner casing, laser condensing lens is pressed on the step surface between lower semisection cylindrical cavity and upper semisection cylindrical cavity by eyeglass hold-down ring, and by the O RunddichtringO sealing in annular groove; Water cooler casing at the outer wall of water cooler inner casing, and and form toroidal cavity between the second segment of water cooler inner casing outer wall, the two ends up and down of water cooler shell are all tightly connected with the outer wall of water cooler inner casing, and water cooler side wall of outer shell is provided with inlet and liquid outlet; The perforate of the lower semisection cylindrical cavity of water cooler inner casing matches with the perforate on the top cover of firing chamber, and water cooler inner casing is connected with firing chamber top seal.
The present invention compared with prior art, its remarkable advantage:
(1) gas that the present invention can control to pass into by the perforate on sealed combustion chamber regulates pressure and gas composition, and by the cavity of firing chamber bottom, pass into different temperatures fluid to regulate temperature, solve the problem that existing laser ignition experimental provision can not regulate pressure, temperature and gas composition simultaneously.
(2) the present invention is by the mode of water flowing in the cavity between water cooler shell and water cooler inner casing, solves laser lens cooling problem.
(3) the present invention can regulate laser facula size by dismantling and change laser lens, thus meets different requirement of experiment.The structure adopting the two-stage shoulder hole section at water cooler inner casing center and threaded hole section to arrange laser lens, O RunddichtringO and eyeglass hold-down ring respectively solves laser lens and detachably changes the problem conflicting with sealing.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the present invention's high pressure resistant temp. controllable laser ignition experimental provision.
Fig. 2 is the structural representation of the present invention's high pressure resistant temp. controllable laser ignition experimental provision laser lens cooling device.
Embodiment
Composition graphs 1 ~ Fig. 2:
A kind of high pressure resistant temp. controllable laser ignition experimental provision of the present invention, comprise laser lens cooling device and temp. controllable firing chamber, this laser lens cooling device is positioned at the top of temp. controllable firing chamber; Temp. controllable firing chamber comprises firing chamber top cover 1, burning chamber shell 2, window glass gland 3, test specimen supporting seat 4, firing chamber bottom 5 and cavities seals plate 6, perforate on burning chamber shell 2 sidewall, firing chamber top cover 1 is arranged at the top of burning chamber shell 2, is tightly connected with burning chamber shell 2; Firing chamber bottom 5 is arranged at bottom burning chamber shell 2, is tightly connected with burning chamber shell 2; Firing chamber bottom 5 bottom slot, cavities seals plate 6 is arranged at bottom firing chamber bottom 5, and be tightly connected with firing chamber bottom 5, cavities seals plate 6 surrounds cavity with the fluting bottom firing chamber bottom 5, cavity has import and outlet on the sidewall of firing chamber bottom 5, test specimen supporting seat 4 is arranged in burning chamber shell 2, is vertically fixed on the center of firing chamber bottom 5 end face; The sidewall of burning chamber shell 2 is provided with window, and on the position of window and sidewall, stagger in the position of perforate, and window is provided with window glass gland 3, window glass gland 3 and window are tightly connected; Laser lens cooling device comprises water cooler shell 7, eyeglass hold-down ring 9, water cooler inner casing 10 and laser condensing lens 11, the outer wall of water cooler inner casing 10 is made up of three concentric columns, and radius increases progressively from top to bottom step by step, water cooler inner casing 10 inwall surrounds two sections of concentric column chambeies, radius increases progressively from top to bottom step by step, lower semisection cylindrical cavity in water cooler inner casing 10 is circumferentially with annular groove, O RunddichtringO is provided with in annular groove, the width of O RunddichtringO is greater than the degree of depth of groove, Liang Duan cylindrical cavity UNICOM and run through whole water cooler inner casing 10; Laser condensing lens 11 is arranged in water cooler inner casing 10, and the radius of laser condensing lens 11 is greater than the upper semisection cylindrical cavity radius in water cooler inner casing 10, eyeglass hold-down ring 9 is arranged in the lower semisection cylindrical cavity of water cooler inner casing 10, laser condensing lens 11 is pressed on the step surface between lower semisection cylindrical cavity and upper semisection cylindrical cavity by eyeglass hold-down ring 9, and by the O RunddichtringO sealing in annular groove; Water cooler shell 7 is enclosed within the outer wall of water cooler inner casing 10, and and form toroidal cavity between the second segment of water cooler inner casing 10 outer wall, the two ends up and down of water cooler shell 7 are all tightly connected with the outer wall of water cooler inner casing 10, and water cooler shell 7 sidewall is provided with inlet and liquid outlet; The perforate of the lower semisection cylindrical cavity of water cooler inner casing 10 matches with the perforate on firing chamber top cover 1, and water cooler inner casing 10 and firing chamber top cover 1 seal and connect.
Perforate on burning chamber shell 2 sidewall is threaded hole, and it is two right that threaded hole is at least provided with.
Burning chamber shell 2 is connected with firing chamber top cover 1 bolt, and burning chamber shell 2 top is provided with annular groove, is provided with annular sealing strip in groove; Firing chamber bottom 5 is connected with burning chamber shell 2 bottom bolts, is provided with annular groove, is provided with annular sealing strip in groove bottom burning chamber shell 2; Cavities seals plate 6 is connected with firing chamber bottom 5 bolt, is provided with annular groove, is provided with annular sealing strip in groove bottom firing chamber bottom 5; Water cooler inner casing 10 is connected with firing chamber top cover 1 bolt, is provided with annular groove, is provided with annular sealing strip in groove bottom firing chamber top cover 1.
Firing chamber bottom 5 bottom centre position has step through-hole, the aperture, upper end of step through-hole is less than aperture, lower end, described test specimen supporting seat 4 is inverted T-shaped, test specimen supporting seat 4 is through the step through-hole at firing chamber bottom 5 center, and match with stepped hole, test specimen supporting seat 4 and firing chamber bottom 5 are fixed by plug screw.
It is U-shaped cavity that cavities seals plate 6 surrounds cavity with the fluting bottom firing chamber bottom 5, and U-shaped cavity has import and outlet on the same sidewall of firing chamber bottom 5.
Water cooler inner casing 10 second level cylindrical outer wall is provided with shape of threads diversion trench.
Window on burning chamber shell 2 is corresponding with test specimen supporting seat 4 apical position.
Water cooler shell 7 is the cylindrical shell of top seal, water cooler shell 7 internal diameter is greater than the external diameter of the second segment cylinder of water cooler inner casing 10 outer wall, be less than the external diameter of water cooler inner casing 10 outer wall lower end cylinder, the water cooler shell 7 inwall degree of depth is corresponding with the height of the second segment cylinder of water cooler inner casing 10 outer wall, be tightly connected with the upper surface of water cooler inner casing 10 lower end cylinder bottom water cooler shell 7, water cooler shell 7 top has manhole, water cooler shell 7 top through-hole diameter is corresponding with water cooler inner casing 10 epimere cylinder external diameter, water cooler shell 7 top through hole is sleeved on the cylinder of water cooler inner casing 10 upper end, be tightly connected with the upper surface of water cooler inner casing 10 second segment cylinder.
The upper end of water cooler shell 7 is provided with water cooler gland 8, and water cooler gland 8 is connected with the top straight thread of water cooler inner casing 10.
Eyeglass hold-down ring 9 is threaded with water cooler inner casing 10.
Embodiment 1:
A kind of high pressure resistant temp. controllable laser ignition experimental provision, comprise laser lens cooling device and temp. controllable firing chamber, this laser lens cooling device is positioned at the top of temp. controllable firing chamber.Temp. controllable firing chamber comprises firing chamber top cover 1, burning chamber shell 2, window glass gland 3, test specimen supporting seat 4, firing chamber bottom 5 and cavities seals plate 6, burning chamber shell 2 sidewall is provided with two double thread holes and two windows, window is sealedly connected with clear window glass gland, threaded hole and window position stagger; Be bolted between burning chamber shell 2 top and firing chamber top cover 1, burning chamber shell 2 top is provided with annular groove, and inside grooves is provided with annular sealing strip, and annular sealing strip ensures to be tightly connected between burning chamber shell 2 and firing chamber top cover 1.Be bolted bottom burning chamber shell 2 and between firing chamber bottom 5, be provided with annular groove, be provided with annular sealing strip in groove bottom burning chamber shell 2, annular sealing strip ensures to be tightly connected between burning housing 2 and firing chamber bottom 5; Have ring groove bottom firing chamber bottom 5, cavities seals plate 6 is with bolts with the bottom of firing chamber bottom 5, is provided with sealing gasket between cavities seals plate 6 and firing chamber bottom 5, and sealing gasket ensures that cavities seals plate 6 and firing chamber bottom 5 are tightly connected; Water cooler inner casing 10 is connected with firing chamber top cover 1 bolt, is provided with annular groove, is provided with annular sealing strip in groove bottom firing chamber top cover 1, and sealing gasket ensures that water cooler inner casing 10 and firing chamber top cover 1 are tightly connected.Cavities seals plate 6 surrounds cavity with the ring groove bottom firing chamber bottom 5, and cavity has import and outlet on the sidewall of firing chamber bottom 5, test specimen supporting seat 4 is fixedly connected on firing chamber bottom 5 center, laser lens cooling device comprises water cooler shell 6, water cooler gland 8, eyeglass hold-down ring 9, water cooler inner casing 10 and laser condensing lens 11, the outer wall of water cooler inner casing 10 is made up of three concentric columns, and radius increases progressively from top to bottom step by step, be made up of two sections of concentric column chambeies in water cooler inner casing 10, radius increases progressively from top to bottom step by step, the lower semisection cylindrical cavity of the inwall of water cooler inner casing 10 is circumferentially with annular groove, O RunddichtringO is provided with in annular groove, the width of O RunddichtringO is greater than the degree of depth of groove, Liang Duan cylindrical cavity UNICOM and run through whole water cooler inner casing 10, laser condensing lens 11 is arranged in water cooler inner casing 10, and the radius of laser condensing lens 11 is greater than the upper semisection cylindrical cavity radius of water cooler inner casing 10, eyeglass hold-down ring 9 is arranged in the lower semisection cylindrical cavity of water cooler inner casing 10, and laser condensing lens 11 is pressed on the step surface between lower semisection cylindrical cavity and upper semisection cylindrical cavity by eyeglass hold-down ring 9, water cooler shell 7 is the cylindrical shell of top seal, sidewall is provided with inlet and liquid outlet, water cooler shell 7 internal diameter is greater than the external diameter of the second segment cylinder of water cooler inner casing 10 outer wall, be less than the external diameter of water cooler inner casing 10 outer wall lower end cylinder, the water cooler shell 7 inwall degree of depth is corresponding with the height of the second segment cylinder of water cooler inner casing 10 outer wall, be tightly connected with the upper surface of water cooler inner casing 10 lower end cylinder bottom water cooler shell 7, water cooler shell 7 top has manhole, water cooler shell 7 top through-hole diameter is corresponding with water cooler inner casing 10 epimere cylinder external diameter, water cooler shell 7 top through hole is sleeved on the cylinder of water cooler inner casing 10 upper end, be tightly connected with the upper surface of water cooler inner casing 10 second segment cylinder.The perforate of the lower semisection cylindrical cavity of water cooler inner casing 10 matches with the perforate on firing chamber top cover 1, and water cooler inner casing 10 and firing chamber top cover 1 seal and connect.
Embodiment 2:
Composition graphs 1 ~ Fig. 2:
A kind of high pressure resistant temp. controllable laser ignition experimental provision, comprise laser lens cooling device and temp. controllable firing chamber, this laser lens cooling device is positioned at the top of temp. controllable firing chamber.Temp. controllable firing chamber comprises firing chamber top cover 1, burning chamber shell 2, window glass gland 3, test specimen supporting seat 4, firing chamber bottom 5 and cavities seals plate 6, burning chamber shell 2 sidewall is provided with three double thread holes and two windows, threaded hole is used for the external equipments such as reload temperature meter, tensimeter, draft tube, and when not using, threaded hole uses plug screw jam-pack for subsequent use, window is sealedly connected with clear window glass gland, threaded hole and window position stagger; Be bolted between burning chamber shell 2 top and firing chamber top cover 1, burning chamber shell 2 top is provided with annular groove, and inside grooves is provided with annular sealing strip, and annular sealing strip ensures to be tightly connected between burning chamber shell 2 and firing chamber top cover 1.Be bolted bottom burning chamber shell 2 and between firing chamber bottom 5, be provided with annular groove, be provided with annular sealing strip in groove bottom burning chamber shell 2, annular sealing strip ensures to be tightly connected between burning housing 2 and firing chamber bottom 5; Have U-lag bottom firing chamber bottom 5, cavities seals plate 6 is with bolts with the bottom of firing chamber bottom 5, is provided with sealing gasket between cavities seals plate 6 and firing chamber bottom 5, and sealing gasket ensures that cavities seals plate 6 and firing chamber bottom 5 are tightly connected; Water cooler inner casing 10 is connected with firing chamber top cover 1 bolt, is provided with annular groove, is provided with annular sealing strip in groove bottom firing chamber top cover 1, and sealing gasket ensures that water cooler inner casing 10 and firing chamber top cover 1 are tightly connected.Cavities seals plate 6 surrounds cavity with the U-lag bottom firing chamber bottom 5, and cavity has import and outlet on the sidewall of firing chamber bottom 5, firing chamber bottom 5 bottom centre position has step through-hole, the aperture, upper end of step through-hole is less than aperture, lower end, inverted T-shaped test specimen supporting seat 4 is through the step through-hole at firing chamber bottom 5 center, and be arranged at the center of firing chamber bottom 5, test specimen supporting seat and firing chamber bottom are fixed by plug screw, laser lens cooling device comprises water cooler shell 6, water cooler gland 8, eyeglass hold-down ring 9, water cooler inner casing 10 and laser condensing lens 11, the outer wall of water cooler inner casing 10 is made up of three concentric columns, and radius increases progressively from top to bottom step by step, be made up of two sections of concentric column chambeies in water cooler inner casing 10, radius increases progressively from top to bottom step by step, the lower semisection cylindrical cavity of the inwall of water cooler inner casing 10 is circumferentially with annular groove, O RunddichtringO is provided with in annular groove, the width of O RunddichtringO is greater than the degree of depth of groove, Liang Duan cylindrical cavity UNICOM and run through whole water cooler inner casing 10, laser condensing lens 11 is arranged in water cooler inner casing 10, and the radius of laser condensing lens 11 is greater than the upper semisection cylindrical cavity radius of water cooler inner casing 10, eyeglass hold-down ring 9 is arranged in the lower semisection cylindrical cavity of water cooler inner casing 10, and laser condensing lens 11 is pressed on the step surface between lower semisection cylindrical cavity and upper semisection cylindrical cavity by eyeglass hold-down ring 9, water cooler shell 7 is the cylindrical shell of top seal, sidewall is provided with inlet and liquid outlet, water cooler shell 7 internal diameter is greater than the external diameter of the second segment cylinder of water cooler inner casing 10 outer wall, be less than the external diameter of water cooler inner casing 10 outer wall lower end cylinder, the water cooler shell 7 inwall degree of depth is corresponding with the height of the second segment cylinder of water cooler inner casing 10 outer wall, be tightly connected with the upper surface of water cooler inner casing 10 lower end cylinder bottom water cooler shell 7, water cooler shell 7 top has manhole, water cooler shell 7 top through-hole diameter is corresponding with water cooler inner casing 10 epimere cylinder external diameter, water cooler shell 7 top through hole is sleeved on the cylinder of water cooler inner casing 10 upper end, be tightly connected with the upper surface of water cooler inner casing 10 second segment cylinder.The upper end of water cooler shell 7 is provided with water cooler gland 8, and water cooler gland 8 is connected with the top straight thread of water cooler inner casing 10.Water cooler inner casing 10 second level cylindrical outer wall is provided with shape of threads diversion trench.The perforate of the lower semisection cylindrical cavity of water cooler inner casing 10 matches with the perforate on firing chamber top cover 1, and water cooler inner casing 10 and firing chamber top cover 1 seal and connect.
Be installed on test specimen supporting seat 4 by NEPE solid propellant test specimen, test specimen supporting seat 4 is through the step through-hole at firing chamber bottom 5 center, and be arranged at the center of firing chamber bottom 5, test specimen supporting seat and firing chamber bottom are fixed by plug screw.Change the laser condensing lens 11 of different focal, regulate the spot size being radiated at surface of test piece.
At four threaded holes of burning chamber shell 2 sidewall, N2 draft tube is set respectively, O2 draft tube, pressure transducer and the escape pipe with valve switch, open the valve switch on escape pipe, N2 and O2 is respectively by N2 draft tube and O2 draft tube flowing in combustion chamber, and outside regulates the throughput ratio of N2 and O2; Close the valve switch on escape pipe, continue to pass into N2 and O2 to specified pressure.
In the cavity that high-temp liquid is consisted of entrance firing chamber bottom on firing chamber bottom 55 and cavities seals plate 6, flowed out by the outlet on firing chamber bottom 5, by the circulation of high-temp liquid, regulate combustion chamber to reach assigned temperature.
When all test variablees all arrive perfect condition, outside adjustment laser instrument, make Laser output power reach 95W, laser beam is through laser condensing lens 11 vertical radiation on NEPE solid propellant test specimen, and test specimen is lighted a fire.Laser output signal and flare up fire are caught by two photodiodes and are converted to voltage signal respectively, and two voltage signals are by data acquisition system (DAS) record.Read data, when to obtain laser power be 95W, the ignition delay time of NEPE solid propellant is 0.0233s, off-test.
Claims (10)
1. a high pressure resistant temp. controllable laser ignition experimental provision, is characterized in that: comprise laser lens cooling device and temp. controllable firing chamber, this laser lens cooling device is positioned at the top of temp. controllable firing chamber, temp. controllable firing chamber comprises firing chamber top cover (1), burning chamber shell (2), window glass gland (3), test specimen supporting seat (4), firing chamber bottom (5) and cavities seals plate (6), perforate on burning chamber shell (2) sidewall, firing chamber top cover (1) is arranged at the top of burning chamber shell (2), is tightly connected with burning chamber shell (2), firing chamber bottom (5) is arranged at burning chamber shell (2) bottom, is tightly connected with burning chamber shell (2), firing chamber bottom (5) bottom slot, cavities seals plate (6) is arranged at firing chamber bottom (5) bottom, and be tightly connected with firing chamber bottom (5), cavities seals plate (6) surrounds cavity with the fluting of firing chamber bottom (5) bottom, cavity has import and outlet on the sidewall of firing chamber bottom (5), test specimen supporting seat (4) is arranged in burning chamber shell (2), is vertically fixed on the center of firing chamber bottom (5) end face, the sidewall of burning chamber shell (2) is provided with window, on the position of window and sidewall, stagger in the position of perforate, window is provided with window glass gland (3), window glass gland (3) and window are tightly connected, laser lens cooling device comprises water cooler shell (7), eyeglass hold-down ring (9), water cooler inner casing (10) and laser condensing lens (11), the outer wall of water cooler inner casing (10) is made up of three concentric columns, and radius increases progressively from top to bottom step by step, water cooler inner casing (10) inwall surrounds two sections of concentric column chambeies, radius increases progressively from top to bottom step by step, lower semisection cylindrical cavity in water cooler inner casing (10) is circumferentially with annular groove, O RunddichtringO is provided with in annular groove, the width of O RunddichtringO is greater than the degree of depth of groove, Liang Duan cylindrical cavity UNICOM and run through whole water cooler inner casing (10), laser condensing lens (11) is arranged in water cooler inner casing (10), and the radius of laser condensing lens (11) is greater than the upper semisection cylindrical cavity radius in water cooler inner casing (10), eyeglass hold-down ring (9) is arranged in the lower semisection cylindrical cavity of water cooler inner casing (10), laser condensing lens (11) is pressed on the step surface between lower semisection cylindrical cavity and upper semisection cylindrical cavity by eyeglass hold-down ring (9), and by the O RunddichtringO sealing in annular groove, water cooler shell (7) is enclosed within the outer wall of water cooler inner casing (10), and and form toroidal cavity between the second segment of water cooler inner casing (10) outer wall, the two ends up and down of water cooler shell (7) are all tightly connected with the outer wall of water cooler inner casing (10), and water cooler shell (7) sidewall is provided with inlet and liquid outlet, the perforate of the lower semisection cylindrical cavity of water cooler inner casing (10) matches with the perforate on firing chamber top cover (1), and water cooler inner casing (10) and firing chamber top cover (1) are tightly connected.
2. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, is characterized in that: the perforate on described burning chamber shell (2) sidewall is threaded hole, and it is two right that threaded hole is at least provided with.
3. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, it is characterized in that: described burning chamber shell (2) is connected with firing chamber top cover (1) bolt, burning chamber shell (2) top is provided with annular groove, is provided with annular sealing strip in groove; Firing chamber bottom (5) is connected with burning chamber shell (2) bottom bolts, and burning chamber shell (2) bottom is provided with annular groove, is provided with annular sealing strip in groove; Cavities seals plate (6) is connected with firing chamber bottom (5) bolt, and firing chamber bottom (5) bottom is provided with annular groove, is provided with annular sealing strip in groove; Water cooler inner casing (10) is connected with firing chamber top cover (1) bolt, and firing chamber top cover (1) bottom is provided with annular groove, is provided with annular sealing strip in groove.
4. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, it is characterized in that: described firing chamber bottom (5) bottom centre position has step through-hole, the aperture, upper end of step through-hole is less than aperture, lower end, described test specimen supporting seat (4) is inverted T-shaped, test specimen supporting seat (4) is through the step through-hole at firing chamber bottom (5) center, and match with stepped hole, test specimen supporting seat (4) and firing chamber bottom (5) are fixed by plug screw.
5. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, it is characterized in that, it is U-shaped cavity that described cavities seals plate (6) surrounds cavity with the fluting of firing chamber bottom (5) bottom, and U-shaped cavity has import and outlet on the same sidewall of firing chamber bottom (5).
6. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, is characterized in that, described water cooler inner casing (10) second level cylindrical outer wall is provided with shape of threads diversion trench.
7. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, is characterized in that, the window on described burning chamber shell (2) is corresponding with test specimen supporting seat (4) apical position.
8. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, it is characterized in that: the cylindrical shell that described water cooler shell (7) is top seal, water cooler shell (7) internal diameter is greater than the external diameter of the second segment cylinder of water cooler inner casing (10) outer wall, be less than the external diameter of water cooler inner casing (10) outer wall lower end cylinder, water cooler shell (7) the inwall degree of depth is corresponding with the height of the second segment cylinder of water cooler inner casing (10) outer wall, water cooler shell (7) bottom is tightly connected with the upper surface of water cooler inner casing (10) lower end cylinder, water cooler shell (7) top has manhole, water cooler shell (7) top through-hole diameter is corresponding with water cooler inner casing (10) epimere cylinder external diameter, water cooler shell (7) top through hole is sleeved on the cylinder of water cooler inner casing (10) upper end, be tightly connected with the upper surface of water cooler inner casing (10) second segment cylinder.
9. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, it is characterized in that: the upper end of described water cooler shell (7) is provided with water cooler gland (8), and water cooler gland (8) is connected with the top straight thread of water cooler inner casing (10).
10. high pressure resistant temp. controllable laser ignition experimental provision according to claim 1, is characterized in that: described eyeglass hold-down ring (9) is threaded with water cooler inner casing (10).
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| CN105021766A (en) * | 2015-08-03 | 2015-11-04 | 南京理工大学 | High-pressure-resisting combustion chamber with laser lens and observation window which are convenient to wipe |
| CN105067523A (en) * | 2015-08-03 | 2015-11-18 | 南京理工大学 | Solid propellant flame segmentation device |
| CN105181878A (en) * | 2015-08-03 | 2015-12-23 | 南京理工大学 | Rotating speed adjustable laser ignition rotation experimental device |
| CN106526066A (en) * | 2016-11-07 | 2017-03-22 | 南京理工大学 | A hot-start experiment apparatus for a paste gas generator |
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| CN108008062A (en) * | 2017-11-23 | 2018-05-08 | 中国航发北京航空材料研究院 | Laser ignition combustion chamber is used in a kind of titanium fire experiment |
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| CN105021766A (en) * | 2015-08-03 | 2015-11-04 | 南京理工大学 | High-pressure-resisting combustion chamber with laser lens and observation window which are convenient to wipe |
| CN105067523A (en) * | 2015-08-03 | 2015-11-18 | 南京理工大学 | Solid propellant flame segmentation device |
| CN105181878A (en) * | 2015-08-03 | 2015-12-23 | 南京理工大学 | Rotating speed adjustable laser ignition rotation experimental device |
| CN105067523B (en) * | 2015-08-03 | 2017-09-15 | 南京理工大学 | A kind of Flame of Solid Propellant segmenting device |
| CN106526066A (en) * | 2016-11-07 | 2017-03-22 | 南京理工大学 | A hot-start experiment apparatus for a paste gas generator |
| CN107860641A (en) * | 2017-11-06 | 2018-03-30 | 云南民族大学 | A kind of preparation method of portable laser ashing sample processing device |
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