CN200996630Y

CN200996630Y - High-pressure combustion chamber with transparent window

Info

Publication number: CN200996630Y
Application number: CN 200620132374
Authority: CN
Inventors: 杨荣杰; 李玉平; 翟进贤
Original assignee: Beijing Institute of Technology BIT
Current assignee: Beijing Institute of Technology BIT
Priority date: 2006-08-17
Filing date: 2006-08-17
Publication date: 2007-12-26
Anticipated expiration: 2016-08-17

Abstract

A high-pressure firebox with a transparent window comprises an open-toped barrel-shaped shell, a cylinder-shaped firebox tip which has a shoulder, a tip gland bush, a cylinder-shaped transparent window with a shoulder, a window gland bush, the gas import and the export and window holes. The firebox is characterized in that the high-pressure firebox has a transparent window.

Description

High pressure transparent window combustion chamber

Affiliated technical field

The utility model relates to a kind of high compression combustion chamber with transparent window.The high pressure resistant equipment that belongs to solid rocket propellant combustion characteristic signal testing.

Background technology

Material combustions such as solid propellant normally under high pressure carry out, and also need under high pressure carry out the mensuration of its burning velocity, ignition temperature and Temperature Distribution." the target collimation method " that tradition combustion speed is measured can only record average combustion speed, can not follow the tracks of the SOLID PROPELLANT COMBUSTION process, and be bigger to firing fast higher solids propellant burning rate evaluated error.If adopt novel high-pressure transparency window combustion chamber and CCD line sweep camera technique by following the tracks of combustion process, not only average combustion speed can be recorded but also instantaneous combustion speed can be obtained, and the propellant burning rate precision height that records.In addition, to propellant combustion flame temperature measurement thermocouple method normally, because thermocouple itself has destroyed the temperature field structure, measure error is bigger.Derive high compression combustion chamber as if the propellant flame that high pressure is burnt down, utilize the spectral method thermometry, can realize measuring combustion flame temperature and Temperature Distribution are quick, accurate.

Summary of the invention

The purpose of this utility model is for the propellant charge flare up fire that high pressure is burnt down passes through burning chamber shell, and a kind of high compression combustion chamber that contains transparency window is provided.Major and minor two transparent windows are arranged on the transparent sidewall of combustion chamber of this high pressure, and the flame light that burning produces can see through this form, realizes the propellant combustion parametric measurement.

The utility model solves technical scheme that its technical problem adopts: a high compression combustion chamber housing that can anti-100MPa the highest is provided, have major and minor two transparent windows on the high compression combustion chamber housing sidewall, main viewfinder is used for the flare up fire collection, and secondary form is used for the propellant charge fired state is detected; The used light transmissive material of form forms is high strength transparent materials such as quartz glass, lucite; Rely on sealing gasket and "O sealing ring to be sealed between form forms and the burning chamber shell, it is fixed by threaded form gland; By the sealing of "O sealing ring, adopt threaded combustion chamber top cover gland that it is tightened between combustion chamber top cover and the burning chamber shell; The usefulness of multiple conducting wires post for propellant charge igniting and combustion chamber cavity temperature, pressure measurement and control etc. is arranged on the top cover of combustion chamber; Wire column by top cover lower end, combustion chamber cone and insulation technology guarantee the combustion chamber airtight withstand voltage and lead and top cover between insulate; For the control chamber pressure, have gas manhole appendix (air admission hole and venthole unite two into one) on the sidewall of combustion chamber, this hole links to each other with the high-pressure air source control device.

The beneficial effects of the utility model are, by gas manhole appendix control chamber pressure, rocket propellant grain burned flame light under setting pressure is derived by transparent window, and moving and changing of tracing flame records propellant charge burning velocity and Temperature Distribution etc. exactly.

Description of drawings

The overall installation diagram in Fig. 1 high pressure transparent window combustion chamber

Fig. 2 high pressure transparent window burning chamber shell profile

Fig. 3 high pressure transparent window burning chamber shell vertical view

Fig. 4 transparent window forms front view

Fig. 5 transparent window forms left view

Fig. 6 form gland profile

Fig. 7 form gland left view

Fig. 8 combustion chamber top cover profile

Fig. 9 combustion chamber capping top view

Figure 10 combustion chamber top cover gland profile

Figure 11 combustion chamber top cover gland vertical view

Among Fig. 1: 1. burning chamber shell 2. main transparent window forms 3. main transparent window gland 4. sealing rings 5. wire column insulation sleeves 6. combustion chamber top covers 7. wire columns 8. combustion chamber top cover handles 9. combustion chamber top cover glands 10. baffle plates 11. pores 12. powder columns press from both sides 20. seal grooves, 21. wire column holes, 19. secondary transparent window holes, top cover hole, 18. combustion chamber, 13. powder column supports, 14. secondary transparent window gland 15. secondary transparent window forms 16. combustion chamber bases, 17. main transparent window holes, 22. powder column support connecting holes

Below in conjunction with drawings and Examples the utility model is further specified.

As depicted in figs. 1 and 2, the utility model high pressure transparent window combustion chamber is the barrel-like structure of a upper end open.Sidewall has two coaxial

step form holes

17 and 19 apart from the somewhere, bottom, major and minor

transparent window hole

17 and 19 inside have " O " type seal groove.For guaranteeing the burning chamber shell compressive resistance, the housing wall thickness around the form hole is greater than other position of burning chamber shell.

In " O " type seal groove of transparent window forms (see figure 4) shoulder place and form

hole

17 and 19 inside, respectively adorn a ring-like sealing ring 4, the transparent window forms that then shoulder are equipped with sealing ring pack into

form hole

17 and 19 places, utilize engage thread that it is screwed (see figure 1) with form gland 3 shown in Figure 6 and 14, the highest withstand voltage 100MPa.For strengthening the flame optical signal that sees through form, form gland outer end is certain taper θ (see figure 6).

High pressure transparent window shown in Figure 8 combustion chamber top cover 6 is cylinders of a band shoulder, and there is seal groove 20 the shoulder below, is used for installing " O " type ring sealing ring 4; Leave wire column hole 21 on the top cover 6,21 belows, wire column hole are a taper; Wire column 7 is that the bottom is the rod shaped structure of cone, the cone by insulated enclosure cover 5 and wire column 7 belows with it with the top cover insulation and seal the highest withstand voltage 100MPa.

Powder column support 13 is fixed in the shallow bore hole 22 of top cover below by screw rod; Powder column support 13 middle parts are provided with a baffle plate 10, prevent that thermal-flame, corrosive gas from directly corroding the wire column lower end; The powder column carriage center is a powder column folder 12, is used for fixing the usefulness of powder column, can regulate powder column height (see figure 1) by the nut in the rotation powder column support 13.

During work,, top cover is compressed sealing with top cover gland 9 (shown in Figure 10) with the connection top cover 6 of the device powder column top cover hole 18 of packing into of lighting a fire well is housed.Carry out combustion experiment to given pressure for the combustion chamber pressurising by pore 11, combustion flame

light transmission form

2 or 15 reaches outside the combustion chamber and uses for test.This is simple to operate, convenient.

Claims

1. a high pressure transparent window combustion chamber is made up of cylinder transparent form, form gland, gas manhole appendix, the form hole of the barrel-like structure housing of upper end open, the cylinder combustion chamber top cover of being with shoulder, top cover gland, band shoulder, it is characterized in that: this high compression combustion chamber band transparent window.

2. high pressure transparent window according to claim 1 combustion chamber is characterized by: the form hole is positioned at sidewall of combustion chamber and two form holes are coaxial.

3. high pressure transparent window according to claim 1 combustion chamber is characterized in that: the form hole of the transparent combustion chamber of high pressure be a stepped hole and in " O " type seal groove is arranged.

4. high pressure transparent window according to claim 1 combustion chamber is characterized in that: the form gland outer end of high pressure transparent window combustion chamber is tapered.

5. high pressure transparent window according to claim 1 combustion chamber is characterized in that: the housing wall thickness is greater than other position, combustion chamber around the form hole.

6. high pressure transparent window according to claim 1 combustion chamber is characterized in that: have a band shoulder, there is the cylindrical shape structure top cover of " O " type ring seal groove and a plurality of binding posts shoulder below.

7. high pressure transparent window according to claim 1 combustion chamber is characterized in that: the top cover wire guide below, cylinder combustion chamber of band shoulder is tapered, and the wire column below is a cone.