CN109798515A - A kind of gas generator - Google Patents
A kind of gas generator Download PDFInfo
- Publication number
- CN109798515A CN109798515A CN201910187702.8A CN201910187702A CN109798515A CN 109798515 A CN109798515 A CN 109798515A CN 201910187702 A CN201910187702 A CN 201910187702A CN 109798515 A CN109798515 A CN 109798515A
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- China
- Prior art keywords
- reducing agent
- combustion chamber
- protective case
- semisection
- oxidant
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Abstract
The present invention provides a kind of gas generator, the gas generator successively includes: spray device assembly, combustion-chamber assembly, nozzle component from top to bottom, the spray device assembly is set to the head of gas generator, nozzle component is set to the tail portion of gas generator, and the combustion-chamber assembly is fixed on centre by screw rod by the spray device assembly and nozzle component；The combustion-chamber assembly includes: protective case, igniter, transparent combustion chamber, and the protective case is set to the transparent combustion chamber periphery；The protective case is split settings, including upper semisection protective case and lower semisection protective case.The present invention proposes a kind of gas generator, burns mainly in gas-liquid spray, can carry out optical measurement to multi-faceted, more means.
Description
Technical field
The invention belongs to gas generator fields, are related to a kind of gas generator.
Background technique
Gas-liquid spray burning is the common combustion mode of gas generator, is always the emphasis studied both at home and abroad.How to make
Obtaining gas-liquid fuels mixing full combustion is one of key technology of gas generator.When experiment, only from multi-faceted precise measurement
Its combustion process just can get more believable experimental data, therefore it is particularly significant that display is furtherd investigate to it.
It is accurate to obtain the small gas generator performance parameter for being used for ground experiment, to the property of research spacecraft propulsion device
It can be significant.A large amount of cost can not only be saved, can also be reduced risks, promoted security performance, also to establishing after
The basis of research contributes.
Traditional measurement method is mostly contact, i.e., sensor probe is deep into gas generator interior flow field, interior
After portion flow field is stablized, its parameter is measured.This method apply at present it is relatively broad, but since its probe gos deep into the property in flow field
The inevitable stream field of the meeting of decision generates interference, so that precision reduces.Non-contact diagnostic techniques and contact have in measurement method
Very big difference, will not have the shortcomings that as above.Current non-contact diagnostic techniques research is concentrated mainly on optical diagnostics field, using light
It learns equipment and the developing direction that shooting is current ejector filler cold flow and hot-fluid experimental technique, such as high speed is carried out to ejector filler exit flow field
Photographic apparatus, planar laser-induced fluorescence device, Raman spectrometer etc..
The before more research for being to infuse gas gas blowout transparent burner, is seldom related to the transparent burner of gas-liquid spray
Discussion.
Summary of the invention
The present invention proposes a kind of gas generator, burns, can carry out to multi-faceted, more means mainly in gas-liquid spray
Optical measurement.
The technical solution of the present invention is as follows: the present invention provides a kind of gas generator, the gas generator from top to bottom according to
Secondary includes: spray device assembly, combustion-chamber assembly, nozzle component, and the spray device assembly is set to the head of gas generator, jet pipe
Component is set to the tail portion of gas generator, and the spray device assembly and nozzle component are fixed the combustion-chamber assembly by screw rod
In centre；
The combustion-chamber assembly includes: protective case, igniter, transparent combustion chamber, and the protective case is set to the transparent combustion
Burn outdoor week；The protective case is split settings, including upper semisection protective case and lower semisection protective case, the upper semisection protective case
Including upper semisection matrix and the upper semisection guard column extended along upper semisection matrix to transparent combustion chamber direction, the upper semisection
Guard column is at least two, is formed with the first groove between every two adjacent upper semisection guard column；
The lower semisection protective case includes lower semisection matrix and extends along lower semisection matrix to transparent combustion chamber direction
Lower semisection guard column, the lower semisection guard column are at least two, and the is formed between every two adjacent lower semisection guard column
Two grooves；
The upper semisection guard column is connected with lower semisection guard column, is enclosed in the periphery of transparent combustion chamber, to prop up
Support the transparent combustion chamber；
First groove and the second groove are connected, and form observation window.
Preferably, the spray device assembly include ejector filler ontology, reducing agent connect mouth, reducing agent gland, oxidant connect mouth,
Combustion chamber cover board, nozzle, oxidant annular chamber and reducing agent annular chamber；
Ejector filler ontology upper end is provided with hollow reducing agent gland, and lower end is provided with combustion chamber cover board；It is described to go back
Former agent connects mouth on the reducing agent gland, and the lower part of the reducing agent gland is formed with reducing agent annular chamber, the reduction
The lower part of agent annular chamber is provided with nozzle, and reducer channel is provided on the nozzle, and the reducing agent connects mouth, reducing agent pressure
Lid, reducing agent annular chamber and nozzle are connected；
The oxidant connects mouth and is connected with ejector filler ontology, and oxidation is formed between the ejector filler ontology and combustion chamber cover board
Agent annular chamber, the combustion chamber cover board are provided with oxidant inlet, and the oxidant connects mouth, oxidant annular chamber and oxidant
Entrance is connected；
The nozzle is connected with the transparent combustion chamber respectively with the oxidant inlet.
Preferably, the reducing agent connects mouth lower end equipped with reducing agent gland, and the reducing agent gland includes horizontal part and water
The vertical portion of flat portion bending connection and with the extension that extends outward along vertical portion level, the horizontal part, vertical portion it is interior
The outer wall that wall connects mouth with reducing agent fits closely；
Preferably, O-ring is provided between the ejector filler ontology and the reducing agent gland.
Preferably, the oxidant annular chamber and oxidant connect the oxidant channel that bending setting is formed between mouth.
Preferably, the reducing agent meets mouth, reducing agent gland, reducing agent annular chamber, nozzle, oxidant annular chamber and institute
Transparent combustion chamber is stated as coaxial arrangement.
Preferably, the igniter uses spark plug igniter, and is set at upper semisection protective case.
Preferably, the transparent combustion chamber is cylinder, and the inner wall of the lower semisection guard column is provided with first surface, institute
The inner wall for stating lower semisection guard column is provided with the second curved surface, the first surface and second curved surface respectively with the transparent combustion
The outer wall for burning room matches.
Preferably, the nozzle component is split settings, including contraction section, expansion segment and throat, the throat pass through receipts
Contracting section, expansion segment are fixedly clamped to it；
The contraction section upper end and the lower semisection protective case are clamped, and contraction section lower end and expansion segment are clamped, the contraction
Throat is formed in the middle part of section and expansion segment connection.
Preferably, the ejector filler ontology and combustion chamber lid board connect and access section is provided with the first Tetrafluoro spacer；And/or
The reducing agent connects mouth and reducing agent gland, oxidant connect mouth and ejector filler ontology and nozzle and ejector filler sheet
To be fixedly connected between body, and the ejector filler ontology is provided with protrusion along the direction close to nozzle；And/or
Combustion chamber cover board and upper semisection protective case are clamped, and are provided with second between combustion chamber cover board and upper semisection protective case
Tetrafluoro spacer；And/or
Upper semisection protective case lower end and transparent combustion chamber upper end are clamped, and are set between upper semisection protective case and transparent combustion chamber
It is equipped with third Tetrafluoro spacer；And/or
Lower semisection protects set upper side and transparent combustion chamber lower end to be clamped, and sets between lower semisection protective case and transparent combustion chamber
It is equipped with the 4th Tetrafluoro spacer；And/or
Lower semisection protective case lower end and contraction section are clamped, and the 5th tetrafluoro is provided between lower semisection protective case and contraction section
Gasket.
Preferably, red copper gasket is provided between igniter and upper semisection protective case, the igniter includes extension,
The extension is set to igniter and upper semisection protective case joint.
Beneficial effects of the present invention:
(1) present invention provides a kind of gas generator, burns primarily directed to solution-air spray, practical safety can be multi-party
Position carries out optical measurement to more means.
(2) present invention is set to the periphery of transparent combustion chamber using upper and lower two sections of protective cases, the first groove on protective case and
Second groove forms observation window, can use optical instrument and measures to the inside of combustion chamber.The present invention is preferably saturating in guarantee
While photosensitiveness, increase protective case, improve the compressive property of combustion-chamber assembly, after preventing transparent combustion chamber broken remaining
Falling for component, causes damages.
(3) present invention uses modularized processing.Wherein protective case is made of two sections, and this design facilitates inner transparent
Taking-up and the replacement of new transparent combustion chamber after combustion chamber is broken, may be implemented the burning of different operating conditions, and tail portion jet pipe uses
Split settings are made of expansion segment, throat and contraction section, and throat's tungsten can be made to seep copper product dosage and tailed off, cost has been saved.
(4) present invention provides gas generator, and protective case is set to transparent combustion chamber periphery, that is, the outer protection taken
It covers, the mode of inner transparent combustion chamber, combustion mechanism research of the gas generator small-sized suitable for ground under environment under low pressure,
There is reference to the research of large aerospace space propeller.The present invention is a kind of low-pressure combustion gas suitable for the small flow in ground
Generator.
(5) gas generator of the present invention is using head injector in upper, laying method of the tail portion jet pipe under.The placement side
Method is adapted to solution-air spray (fuel forms are gas and liquid), and after avoiding burning, imperfect combustion fuel return is extremely
Head reduces the probability of accident generation.
(6) present invention uses plug ignition, and cost is relatively low, and structure is simple, securely and reliably, simplifies ignition process.This
Invention is attached fixation to head injector component and tail portion nozzle component using screw rod, and head and the tail attaching nut is to whole application
Pretightning force, and entire gas generator reaches the requirement of sealing by pretightning force.
Detailed description of the invention
Fig. 1 is a kind of gas generator schematic perspective view provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic perspective view at another visual angle of gas generator provided in an embodiment of the present invention；
Fig. 3 is ejector filler component structure diagram in a kind of gas generator provided in an embodiment of the present invention；
Fig. 4 is partial enlargement diagram at A in Fig. 3；
Fig. 5 is combustion-chamber assembly schematic cross-sectional view in a kind of gas generator provided in an embodiment of the present invention；
Fig. 6 is nozzle component structural schematic diagram in a kind of gas generator provided in an embodiment of the present invention；
Fig. 7 is a kind of gas generator combustion-chamber assembly schematic perspective view provided in an embodiment of the present invention；It (saves
Igniter is omited)
Fig. 8 is upper semisection protective case schematic perspective view in the embodiment of the present invention；
Fig. 9 is lower semisection protective case schematic perspective view in the embodiment of the present invention.
Appended drawing reference: 1- spray device assembly；2- combustion-chamber assembly；3- nozzle component；
10- ejector filler ontology；The protrusion 100-；101- oxidant channel；11- reducing agent connects mouth；12- reducing agent gland；
120- horizontal part；The vertical portion 121-；122- extension；13- oxidant connects mouth；The first phenyl tetrafluoride pad of 14-；The combustion chamber 15- cover board；
150- oxidant inlet；16- nozzle；160- reducer channel；17- oxidant annular chamber；18- reducing agent annular chamber；19-O type
Circle；
20- observation window；The second phenyl tetrafluoride pad of 21-；22- red copper gasket；23- igniter；230- extension；24- third tetrafluoro
Pad；The 4th Tetrafluoro spacer of 25-；The 5th Tetrafluoro spacer of 26-；27- lower semisection protective case；28- transparent combustion chamber；29- upper semisection is protected
Sheath；79- protective case；
31- contraction section；The 6th Tetrafluoro spacer of 32-；33- throat；34- expansion segment；35- nozzle exit；
The first nut of 41-；42- third nut；43- screw rod；The second nut of 44-.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The embodiment of the present invention provides a kind of small gas generator, as shown in figs 1-9, referring to Figure 1, gas generator from
It successively include: spray device assembly 1, combustion-chamber assembly 2, nozzle component 3 under, the spray device assembly 1 is set to combustion gas
The head of device, nozzle component 3 is set to the tail portion of gas generator, the spray device assembly 1 and nozzle component 3 will by screw rod 43
The combustion-chamber assembly 2 is fixed on centre；The spray device assembly 1 and nozzle component 3 of the embodiment of the present invention pass through uniformly distributed four phases
Screw rod 43 with size realizes connection, and combustion-chamber assembly 2 is fixed among spray device assembly 1 and nozzle component 3.Screw rod 43
Upper and lower ends are respectively cooperating with the first nut 41 and the second nut 44, apply pretightning force to intermediate combustion-chamber assembly, to connection
Component is sealed.The embodiment of the present invention is attached fixation using the screw rod of four same models, so that in different burners
Under condition, facilitate the replacement on head and tail portion part.And increase by four third spiral shells below the combustion chamber cover board 15 of spray component 1
Mother 42, prevents occurring the case where head of combustion chamber ejector filler component is scattered in dismantling or glass breaking.
The combustion-chamber assembly 2 includes: protective case 79, igniter 23, transparent combustion chamber 28, and the protective case 79 is set to institute
State 28 periphery of transparent combustion chamber；The protective case is split settings, including upper semisection protective case 29 and lower semisection protective case 27,
The upper semisection protective case 29 include upper semisection matrix 290 and along upper semisection matrix 290 to transparent combustion chamber 28
The upper semisection guard column 291 that direction extends, the upper semisection guard column 291 are at least two, and every two adjacent upper semisection is protected
The first groove 293 is formed between guard post 291；
The lower semisection protective case 27 include lower semisection matrix 270 and along lower semisection matrix 270 to transparent combustion chamber 28
The lower semisection guard column 271 that direction extends, the lower semisection guard column 271 are at least two, and every two adjacent lower semisection is protected
The second groove 273 is formed between guard post 271；
Lower semisection of embodiment of the present invention guard column 271 and upper semisection guard column 291 are four.
The upper semisection guard column 291 is connected with lower semisection guard column 271, is enclosed in the outer of transparent combustion chamber 28
Week, to support protection transparent combustion chamber 28；
First groove 293 is connected with the first groove 293, and forms observation window 20.
The embodiment of the present invention provides a kind of transparent combustion chamber component, practical safety, can multi-faceted, more means to small-sized combustion
Gas generator carries out optical measurement.
Upper semisection of embodiment of the present invention protective case 29 and lower semisection protective case 27 can be made of stainless steel, this hair
Bright upper semisection protective case 29 and lower semisection protective case 27 can use rectangle.Transparent combustion chamber of the embodiment of the present invention 28 can use
For cylinder, material is preferably quartz glass.Four observation windows 20 of formation of the embodiment of the present invention, four corresponding to rectangle protective case
A face can use optical instrument and measure respectively from four inside in face of burning.Obviously, the present invention does not limit half section of guarantor
The material and shape of sheath 29, lower semisection protective case 27 and transparent combustion chamber 28.
Upper semisection of embodiment of the present invention guard column 291 is equal with the number that lower semisection guard column 271 is arranged, and corresponding sets
It sets.The embodiment of the present invention is enclosed using upper semisection guard column 291 and lower semisection guard column 271 in the outer of transparent combustion chamber 28
Week, the first groove 293 of the embodiment of the present invention and the first groove 293 form observation window, can use optical instrument to transparent combustion
The inside for burning room 28 measures.The present invention increases protective case while guaranteeing preferable translucency, improves combustion chamber group
The compressive property of part, remaining part is fallen after preventing transparent combustion chamber broken, is caused damages.
The embodiment of the present invention uses the form of upper and lower two sections of protective cases combination, takes after facilitating inner transparent combustion chamber broken
The replacement of transparent combustion chamber out and newly.
Preferably, the spray device assembly 1 connects mouth 11, reducing agent gland 12, oxidation including ejector filler ontology 10, reducing agent
Agent connects mouth 13, combustion chamber cover board 15, nozzle 16, oxidant annular chamber 17 and reducing agent annular chamber 18；
10 upper end of ejector filler ontology is provided with hollow reducing agent gland 12, and 10 lower end of ejector filler ontology is provided with combustion
Burn room cover plate 15；The reducing agent connects mouth 11 on the reducing agent gland 12, and the lower part of the reducing agent gland 12 is formed
There is reducing agent annular chamber 18, the lower part of the reducing agent annular chamber 18 is provided with nozzle 16, is provided with reduction on the nozzle 16
Agent channel 160, the reducing agent connect mouth 11, reducing agent gland 12, reducing agent annular chamber 18 and nozzle 16 and are connected；
The oxidant connects mouth 13 and is connected with ejector filler ontology 10, between the ejector filler ontology 10 and combustion chamber cover board 15
Oxidant annular chamber 17 is formed, the combustion chamber cover board 15 is provided with oxidant inlet 150, and the oxidant connects mouth 13, oxidation
Agent annular chamber 17 and oxidant inlet 150 are connected.
Nozzle 16 is connected with transparent combustion chamber 28, and oxidant inlet 150 is connected with the transparent combustion chamber 28.
The reducing agent enters transparent combustion chamber 28 by nozzle 16, and oxidant is entered transparent by oxidant inlet 150
Combustion chamber 28.Reducing agent of the embodiment of the present invention and oxidant are mixed and burned in transparent combustion chamber 28.
Preferably, the reducing agent connects 11 lower end of mouth equipped with reducing agent gland 12, and the reducing agent gland 12 is hollow sets
Set, and including horizontal part 120, with the vertical portion 121 of the bending connection of horizontal part 120 and with it is horizontal toward extension along vertical portion 121
The extension 122 stretched, the horizontal part 120, vertical portion 121 inner wall and reducing agent connect the outer wall of mouth 11 and fit closely, with
To better seal effect.
Preferably, O-ring 19 is provided between the ejector filler ontology 10 and the reducing agent gland 12.O-ring 19 is
In order to realize the sealing between ejector filler ontology 10 and the reducing agent gland 12.
Preferably, the oxidant annular chamber 17 and oxidant connect the oxidant channel that bending setting is formed between mouth 13
101, to avoid there is the conflict on mounting structure.
Spray device assembly 1 is mainly used for providing fuel required for gas generator burns, the fuel of the embodiment of the present invention
Illustrate by taking oxygen and kerosene as an example.As shown in Figure 3-4, kerosene connects mouth 11 into device, by also from reducing agent as reducing agent
The direct current channel that former agent connects mouth 11 enters reducing agent annular chamber 18, passes through reducer channel 160 later, into nozzle 16, most
Afterwards from 16 mouthfuls of transparent combustion chambers 28 for entering combustion-chamber assembly 2 of nozzle.Oxygen connects mouth 13 as oxidant, from oxidant
Direct current channel enters oxidant annular chamber 17 by oxidant channel 101, finally pass through oxidant inlet 150, equally into
Enter in the transparent combustion chamber 28 of combustion-chamber assembly 2, is mixed with kerosene.
In the embodiment of the present invention, reducing agent connects mouth 11, reducing agent gland 12, reducing agent annular chamber 18, nozzle 16, oxidant
Annular chamber 17 and the transparent combustion chamber 28 are coaxial arrangement, are conducive to the mixing of solution-air.
Combustion-chamber assembly 2 is mainly the place burnt and lighted a fire.The igniter 23 uses spark plug igniter, and is set to
At upper semisection protective case 29.Igniter of the embodiment of the present invention 23 can use spark plug, and cost is relatively low, and structure is simple, safely may be used
It leans on, simplifies ignition process.
Further, the transparent combustion chamber 28 is cylinder, and the inner wall of the lower semisection guard column 291 is provided with the first song
Face 292, the inner wall of the lower semisection guard column 271 are provided with the second curved surface 272, the first surface 292 and transparent combustion chamber
28 outer wall and the second curved surface 272 are matched with the outer wall of the transparent combustion chamber 28, with realize first surface 292 and thoroughly
Bright combustion chamber 28 and the second curved surface 272 are fitted closely with transparent combustion chamber 28.
Preferably, the nozzle component 3 is split settings, including contraction section 31, expansion segment 32 and throat 33, the throat
33 are fixedly clamped to it by contraction section 31, expansion segment 32；
31 upper end of jet pipe contraction section and the lower semisection protective case 27 are clamped, and 31 lower end of contraction section and expansion segment 34 block
It connects, the contraction section 31 and expansion segment are formed with throat 33 in the middle part of 34 connection.Nozzle component 3 is mainly the acceleration of combustion gas
Place, the material that throat 33 uses, which can be selected, seeps copper for tungsten, and is realized and fixed by the extruding of expansion segment 34 and contraction section 31.
6th Tetrafluoro spacer 32 seals for realizing the connection between contraction section 31 and expansion segment 34.
Preferably, the ejector filler ontology 10 is mechanically connected with combustion chamber cover board 15 and junction is provided with the first phenyl tetrafluoride pad
Piece 14 prevents the leakage of propellant medium (kerosene) to realize the sealing between ejector filler ontology 10 and combustion chamber cover board 15.
And/or the reducing agent connect mouth 11 and reducing agent gland 12, oxidant connect mouth 13 and ejector filler ontology 10 and
To be fixedly connected between nozzle 16 and ejector filler ontology 10, welding form can be used.
The ejector filler ontology 10 is provided with protrusion 100 along the direction close to nozzle 16, can play the role of limit, uses
With the axial displacement of limits nozzle 16, prevent nozzle 16 from falling.
And/or combustion chamber cover board 15 and upper semisection protective case 29 are mechanically connected, and combustion chamber cover board 15 and upper semisection are protected
It is provided with the second Tetrafluoro spacer 21 between set 29, for realizing the sealing between spray device assembly 1 and combustion-chamber assembly 2.
And/or 29 lower end of upper semisection protective case is connect with 28 upper mechanical of transparent combustion chamber, and upper semisection protective case 29 with
Third Tetrafluoro spacer 24 is provided between transparent combustion chamber 28, for realizing upper semisection protective case 29 and cylindrical type transparent combustion chamber
Sealing between 28.
And/or 27 upper end of lower semisection protective case is connect with 28 lower mechanical of transparent combustion chamber, and lower semisection protective case 27 with
The 4th Tetrafluoro spacer 25 is provided between transparent combustion chamber 28, for realizing lower semisection protective case 27 and cylindrical type transparent combustion chamber
Sealing between 28.
Connection between upper semisection protective case 29 and lower semisection protective case 27 can use mechanical engagement.
And/or 27 lower end of lower semisection protective case and contraction section 31 are clamped, and between lower semisection protective case 27 and contraction section 31
It is provided with the 5th Tetrafluoro spacer 26, for realizing the sealing between combustion-chamber assembly 2 and nozzle component 3.
Preferably, red copper gasket 22 is provided between igniter 23 and upper semisection protective case 29, for igniter 23 and combustion
The connection sealing between the upper semisection protective case 29 of chamber component 2 is burnt, such advantage is the difference of the hardness between different materials,
Red copper gasket 22 is softer, causes better tightness under the action of pretightning force.
The igniter 23 includes extension 230, and the extension 230 is set to igniter 23 and upper semisection protective case 29
Play the role of limit to limit the lateral displacement of igniter 23 in joint.
It should be noted that the first Tetrafluoro spacer 14, the second Tetrafluoro spacer 21, third Tetrafluoro spacer in the embodiment of the present invention
24, the installation position of the 4th Tetrafluoro spacer 25, the 5th Tetrafluoro spacer 26, the 6th Tetrafluoro spacer 32, O-ring 19, red copper gasket 22 etc.
It sets, is provided with corresponding groove all in accordance with national standard.
The embodiment of the present invention is not to limit the present invention, all within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gas generator, which is characterized in that the gas generator successively include: from top to bottom spray device assembly (1),
Combustion-chamber assembly (2), nozzle component (3), the spray device assembly (1) are set to the head of gas generator, and nozzle component (3) is set
In the tail portion of gas generator, the spray device assembly (1) and nozzle component (3) pass through screw rod (43) for the combustion-chamber assembly
(2) it is fixed on centre；
The combustion-chamber assembly (2) includes: protective case (79), igniter (23), transparent combustion chamber (28), the protective case (79)
Set on the transparent combustion chamber (28) periphery；The protective case is split settings, including upper semisection protective case (29) and lower semisection
Protective case (27),
The upper semisection protective case (29) include upper semisection matrix (290) and along upper semisection matrix (290) to transparent combustion chamber
(28) the upper semisection guard column (291) that direction extends, the upper semisection guard column (291) is at least two, every two adjacent
The first groove (293) are formed between upper semisection guard column (291)；
The lower semisection protective case (27) include lower semisection matrix (270) and along lower semisection matrix (270) to transparent combustion chamber
(28) the lower semisection guard column (271) that direction extends, the lower semisection guard column (271) is at least two, every two adjacent
The second groove (273) are formed between lower semisection guard column (271)；
The upper semisection guard column (291) is connected with lower semisection guard column (271), is enclosed in the outer of transparent combustion chamber (28)
Week, to support the transparent combustion chamber (28)；
First groove (293) is connected with the first groove (293), and forms observation window (20).
2. gas generator according to claim 1, which is characterized in that the spray device assembly (1) includes ejector filler sheet
Body (10), reducing agent connect mouth (11), reducing agent gland (12), oxidant connect mouth (13), combustion chamber cover board (15), nozzle (16),
Oxidant annular chamber (17) and reducing agent annular chamber (18)；
Ejector filler ontology (10) upper end is provided with hollow reducing agent gland (12), and lower end is provided with combustion chamber cover board
(15)；The reducing agent connects mouth (11) on the reducing agent gland (12), and the lower part of the reducing agent gland (12) is formed
Have reducing agent annular chamber (18), the lower part of the reducing agent annular chamber (18) is provided with nozzle (16), is set on the nozzle (16)
It is equipped with reducer channel (160), the reducing agent connects mouth (11), reducing agent gland (12), reducing agent annular chamber (18) and spray
Mouth (16) is connected；
The oxidant connects mouth (13) and is connected with ejector filler ontology (10), the ejector filler ontology (10) and combustion chamber cover board (15)
Oxidant annular chamber (17) are formed between nozzle (16), the combustion chamber cover board (15) is provided with oxidant inlet (150), institute
It states oxidant and connects mouth (13), oxidant annular chamber (17) and oxidant inlet (150) and be connected；
The reducing agent enters the transparent combustion chamber by oxidant inlet (150) by nozzle (16) and oxidant
(28)。
3. gas generator according to claim 2, which is characterized in that the reducing agent connects mouth (11) lower end and is equipped with reduction
Agent gland (12), the reducing agent gland (12) include horizontal part (120), the vertical portion with horizontal part (120) bending connection
(121) and with along vertical portion (121) the horizontal extension (122) extended outward, the horizontal part (120), vertical portion (121)
The inner wall outer wall that connects mouth (11) with reducing agent fit closely.
4. gas generator according to claim 2, which is characterized in that the ejector filler ontology (10) and the reducing agent
O-ring (19) are provided between gland (12).
5. gas generator according to claim 2, it is characterised in that the oxidant annular chamber (17) and oxidant connect
The oxidant channel (101) of bending setting is formed between mouth (13).
6. gas generator according to claim 2, the reducing agent connects mouth (11), reducing agent gland (12), reducing agent
Annular chamber (18), nozzle (16), oxidant annular chamber (17) and the transparent combustion chamber (28) are coaxial arrangement.
7. gas generator according to claim 1, it is characterised in that: the transparent combustion chamber (28) is cylinder, institute
The inner wall for stating lower semisection guard column (291) is provided with first surface (292), the inner wall setting of the lower semisection guard column (271)
Have the second curved surface (272), the first surface (292) and second curved surface (272) respectively with the transparent combustion chamber (28)
Outer wall match.
8. gas generator according to claim 1, which is characterized in that the nozzle component (3) is split settings, including
Contraction section (31), expansion segment (32) and throat (33), the throat (33) clamp it by contraction section (31), expansion segment (32)
It is fixed；
Contraction section (31) upper end and the lower semisection protective case (27) are mechanically connected, contraction section (31) lower end and expansion segment
(34) it is mechanically connected, is formed with throat (33) in the middle part of the contraction section (31) and expansion segment (34) connection.
9. a kind of transparent burner of gas-liquid spray according to claim 1, which is characterized in that the ejector filler ontology
(10) it is mechanically connected with combustion chamber cover board (15) and junction is provided with the first Tetrafluoro spacer (14)；And/or
The reducing agent connects mouth (11) and reducing agent gland (12), oxidant connect mouth (13) and ejector filler ontology (10) and spray
To be fixedly connected between mouth (16) and ejector filler ontology (10), and the ejector filler ontology (10) is along the direction close to nozzle (16)
It is provided with protrusion (100)；And/or
Combustion chamber cover board (15) and upper semisection protective case (29) are mechanically connected, and combustion chamber cover board (15) and upper semisection protective case
(29) the second Tetrafluoro spacer (21) are provided between；And/or
Upper semisection protective case (29) lower end is connect with transparent combustion chamber (28) upper mechanical, and upper semisection protective case (29) with it is transparent
Third Tetrafluoro spacer (24) are provided between combustion chamber (28)；And/or
Lower semisection protective case (27) upper end is connect with transparent combustion chamber (28) lower mechanical, and lower semisection protective case (27) with it is transparent
The 4th Tetrafluoro spacer (25) is provided between combustion chamber (28)；And/or
Lower semisection protective case (27) lower end and contraction section (31) are mechanically connected, and lower semisection protective case (27) and contraction section (31)
Between be provided with the 5th Tetrafluoro spacer (26).
10. gas generator according to claim 1, which is characterized in that igniter (23) and upper semisection protective case (29)
Between be provided with red copper gasket (22), the igniter (23) includes extension (230), the extension (230) be set to point
Firearm (23) and upper semisection protective case (29) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910187702.8A CN109798515A (en) | 2019-03-13 | 2019-03-13 | A kind of gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110954794A (en) * | 2019-12-11 | 2020-04-03 | 中国科学院力学研究所 | Liquid propellant constant-pressure discharge characteristic parameter measuring device |
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