CN112066406A - A new type of combustion chamber - Google Patents

Abstract

The present invention discloses a novel combustion chamber, comprising a cavity and an end head, the end head is detachably connected to the port of the cavity, the cavity comprises a carbon fiber layer and a heat insulation layer, the heat insulation layer is attached to the inner wall of the carbon fiber layer; the inner wall of the carbon fiber layer is provided with a limiting portion, the outer wall of the heat insulation layer is provided with a clamping portion, and the clamping portion and the limiting portion are clamped together. In the present invention, the heat insulation layer can isolate most of the heat inside the cavity, the temperature of the carbon fiber layer will not be too high, and its performance can be kept stable; the carbon fiber layer is light in weight and high in tensile strength, which reduces the weight of the combustion chamber and meets the high pressure requirements of the combustion chamber; the clamping portion and the limiting portion are clamped together, which limits the movement of the heat insulation layer and improves the use stability of the combustion chamber; the cavity and the end head are detachably connected, and the user can replace the cavity of different lengths, thicknesses, and inner diameters according to the air pressure requirements and temperature requirements when using it, so as to meet the application of different scenarios and different requirements.

Description

A new type of combustion chamber

technical field

The invention relates to the technical field of combustion chambers, in particular to a novel combustion chamber.

Background technique

The existing combustion chamber structure is based on the premise of an integrally formed metal liner, and the outer layer is wound with a carbon fiber layer to meet the high pressure requirement of the combustion chamber. However, the metal liner is easy to conduct heat, and the heat inside the metal liner is easily conducted to the carbon fiber layer, and the high temperature will reduce the performance of the carbon fiber layer in all aspects. Moreover, when the internal air pressure of the metal liner is too high, the thickness of the metal liner also increases accordingly, which greatly increases the overall weight.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to propose a new type of combustion chamber based on the above-mentioned shortcomings of the prior art, which solves the problems of poor high temperature resistance and heavy weight of the existing combustion chamber. .

The technical scheme of the present invention is realized as follows:

A new type of combustion chamber includes a cavity and an end, the end is detachably connected to the port of the cavity, the cavity includes a carbon fiber layer and a thermal insulation layer, and the thermal insulation layer is attached to the cavity. The inner wall of the carbon fiber layer; the inner wall of the carbon fiber layer is provided with a limiting portion, and the outer wall of the thermal insulation layer is provided with a locking portion, and the locking portion and the limiting portion are tightly matched.

Further, the heat insulating layer is attached to the inner wall of the carbon fiber layer by adhesive.

Further, any one of the locking portion and the limiting portion is a boss, and the other is a groove, and the boss is embedded in the groove for clamping fit.

Further, the carbon fiber layer is integrally formed.

Further, the heat insulating layer is EPDM rubber.

Further, the end of the cavity is provided with a first flange, the end of the end head is provided with a second flange, and the first flange and the second flange are attached and detachably held by a clamp. Tight connection.

Further, an asbestos gasket is arranged between the first flange and the second flange.

Further, the outer surfaces of the first flange and the second flange are both slope structures.

Further, the first flange is integrally formed at the end of the carbon fiber layer.

Adopting the above-mentioned technical scheme, the beneficial effects of the present invention are:

(1) The thermal insulation layer can isolate most of the heat inside the cavity, the temperature of the carbon fiber layer will not be too high, and its performance can remain stable; the carbon fiber layer is light in weight and high in tensile strength, which reduces the weight of the combustion chamber and meets the requirements of combustion high pressure requirements of the chamber.

(2) The clamping part and the limiting part are tightly matched, which restricts the movement of the heat insulation layer and improves the use stability of the combustion chamber.

(3) The connection between the cavity and the end is detachable. Users can replace the cavity with different lengths, different thicknesses and different inner diameters according to the air pressure requirements and temperature requirements used to meet the needs of different scenarios and applications.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a perspective cross-sectional view of the embodiment.

FIG. 3 is an enlarged view of M in FIG. 2 .

In the figure, 10-cavity, 11-carbon fiber layer, 12-insulation layer, 13-limiting part, 14-positioning part, 15-first flange, 16-positioning groove, 20-end, 21 -Second flange, 30-clamp, 40-asbestos gasket.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , in the embodiment provided by the present invention, a novel combustion chamber includes a cavity 10 and an end head 20 , and the end head 20 is detachably connected to the port of the cavity body 10 .

As shown in FIG. 2 and FIG. 3 , the cavity 10 includes a carbon fiber layer 11 and an insulating layer 12 , and the insulating layer 12 is attached to the inner wall of the carbon fiber layer 11 by adhesive. Wherein, the carbon fiber layer 11 is integrally formed, and the heat insulating layer 12 is made of EPDM. The thermal insulation layer 12 can isolate most of the heat inside the cavity 10, the temperature of the carbon fiber layer 11 will not be too high, and its performance can be kept stable; the carbon fiber layer 11 is light in weight, high in tensile strength, reduces the weight of the combustion chamber, and satisfies the High pressure requirements of the combustion chamber.

As shown in FIG. 2 and FIG. 3 , the inner wall of the carbon fiber layer 11 is provided with a limiting portion 13 , and the outer wall of the heat insulating layer 12 is provided with a locking portion 14 . The movement of 12 improves the stability of the combustion chamber. Among them, any one of the locking portion 14 and the limiting portion 13 is a boss, and the other is a groove, and the boss is embedded in the groove to be tightly fitted. In this embodiment, the limiting portion 13 is a groove, and the locking portion 14 is a boss.

As shown in FIGS. 1 to 3 , the end of the cavity 10 is provided with a first flange 15 , the end of the end head 20 is provided with a second flange 21 , and the first flange 15 and the second flange 21 are attached to and pass through. The clamp 30 can be detachably and tightly connected, so that the cavity 10 and the end head 20 can be detachably connected. Among them, the user can replace the cavity 10 with different lengths, different thicknesses, and different inner diameters according to the air pressure requirements and temperature requirements used, so as to meet the application of different scenarios and different needs.

As shown in FIG. 3 , an asbestos gasket 40 is disposed between the first flange 15 and the second flange 21 . The inner surface of the first flange 15 is provided with a positioning groove 16, and the asbestos gasket 40 is embedded in the positioning groove 16, thereby realizing positioning. Among them, the asbestos gasket 40 plays the role of heat insulation and sealing.

As shown in FIG. 3 , the outer surfaces of the first flange 15 and the second flange 21 are both slope structures. Wherein, when the clamp 30 holds the first flange 15 and the second flange 21 tightly, the oblique wave structure can decompose the holding force towards the center of the cavity 10 into the force on the first flange 15 and the second flange 21 . The squeezing force makes the first flange 15 and the second flange 21 close and seal. At the same time, the slope structure can guide the clamp 30 , which makes it more convenient for the user to set the clamp 30 on the first flange 15 and the second flange 21 .

As shown in FIG. 3 , the first flange 15 is integrally formed at the end of the carbon fiber layer 11 . The first flange 15 and the carbon fiber layer 11 are both made of carbon fiber material, and the carbon fiber has high strength, so that the first flange 15 can meet the application of rigid connection.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. A novel combustion chamber, comprising a cavity and an end, the end being detachably connected to the port of the cavity, characterized in that: the cavity includes a carbon fiber layer and a thermal insulation layer, the The heat insulation layer is attached to the inner wall of the carbon fiber layer; the inner wall of the carbon fiber layer is provided with a limiting portion, and the outer wall of the heat insulating layer is provided with a locking portion, and the locking portion and the limiting portion are tightly fitted. 2 . The novel combustion chamber according to claim 1 , wherein the heat insulating layer is attached to the inner wall of the carbon fiber layer by means of adhesive. 3 . 3 . The new type of combustion chamber according to claim 1 , characterized in that: any one of the locking portion and the limiting portion is a boss, and the other is a groove, and the boss is embedded in the into the groove and then snap fit. 4 . The novel combustion chamber according to claim 1 , wherein the carbon fiber layer is integrally formed. 5 . 5 . The novel combustion chamber according to claim 1 , wherein the heat insulating layer is EPDM rubber. 6 . 6 . The new type of combustion chamber according to claim 1 , wherein the end of the cavity is provided with a first flange, the end of the end head is provided with a second flange, and the first flange is provided on the end of the cavity. 7 . A flange and a second flange are attached and are detachably and tightly connected by a clamp. 7 . The novel combustion chamber according to claim 6 , wherein an asbestos gasket is arranged between the first flange and the second flange. 8 . 8 . The novel combustion chamber according to claim 6 , wherein the outer surfaces of the first flange and the second flange are both sloped structures. 9 . 9 . The novel combustion chamber of claim 6 , wherein the first flange is integrally formed at the end of the carbon fiber layer. 10 .

Images