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CN-115450795-B - High-energy clean gas generating device

CN115450795BCN 115450795 BCN115450795 BCN 115450795BCN-115450795-B

Abstract

The invention discloses a high-energy clean gas generating device, which comprises a gas generator body, a power output connector and a temperature measuring device, wherein the power output connector and the temperature measuring device are arranged at the outlet end of the gas generator body through an outlet flange, the gas generator body comprises a shell, an igniter, a pressure sensor, an ignition cartridge, a filtering component, a sealing ring, a powder charge, an end cover, a first compression ring, a blocking piece and a compression screw, wherein the ignition cartridge is arranged in the shell, the filtering component is fixed at one side close to the outlet end of the shell and comprises a framework, a filter core and a second compression ring, the filter core is formed by pressing a plurality of layers of molybdenum wire meshes, the ignition cartridge is fastened on the filter core through the sealing ring, the powder charge is arranged in the inner cavity of the shell, an improved double-base propellant is adopted, the igniter, the ignition cartridge and the powder charge form a three-level ignition sequence, and the pressure sensor forms a passage with the igniter and the ignition cartridge. The fuel gas generating device adopts a freely-filled charging structure, and has high output energy density, high working efficiency and high output fuel gas cleanliness.

Inventors

  • YU GUOJUN
  • ZHOU EJIONG
  • WU HAODONG

Assignees

  • 湖北三江航天红林探控有限公司
  • 湖北三江航天红林探控有限公司

Dates

Publication Date
20260421
Application Date
20220930
Priority Date
20220930

Claims (8)

  1. 1. The high-energy clean gas generating device is characterized by comprising a gas generator body, a power output connector and a temperature measuring device, wherein the power output connector and the temperature measuring device are arranged at the outlet end of the gas generator body through an outlet flange, the gas generator body comprises a shell, an igniter, a pressure sensor, an ignition medicine box, a filtering component, a sealing ring, medicine filling, an end cover, a first pressing ring, a blocking piece and a pressing screw, the ignition medicine box, the filtering component, the filter core and the second pressing ring are arranged on one side close to the outlet end of the shell in a fixed mode, the filter core is formed by pressing a plurality of layers of molybdenum wire meshes and is tightly pressed on the framework through the second pressing ring, the ignition medicine box is fastened on the filter core through the sealing ring, the other end of the shell is tightly locked through the end cover and the first pressing ring, the igniter and the pressure sensor are connected with the shell through a reserved connector at the outlet end of the shell, the blocking piece is arranged at the outlet end of the shell and is locked through the pressing screw, the medicine filling is arranged in an inner cavity of the shell, the igniter, the ignition medicine box and the pressing ring and the pressing container are formed by adopting an improved double-base propellant form three-stage ignition sequence.
  2. 2. The gas generating device of claim 1, wherein the molybdenum wire mesh is made of Mo01 pure molybdenum wires with wire diameters of 0.18mm-0.25mm, the forming compression rate of the molybdenum wires is 30% -35%, the rebound rate is not more than 3%, and the filtering precision is not less than 50 μm.
  3. 3. The gas generating device of claim 1, wherein the length-diameter ratio of the charge is greater than 6, and buffer pads are arranged at the head end and the tail end of the charge, and are made of aviation sponge rubber plates with model HM 102.
  4. 4. The gas generator according to claim 1, wherein the single-side radial gap between the charge and the casing is 0.5mm.
  5. 5. The gas generating device of claim 1, wherein the sealing ring is formed by splicing 3 arc-shaped sealing ring monomers with the angle of 120 degrees.
  6. 6. The gas generator according to claim 1, wherein the seal ring and the cartridge body and the base of the ignition cartridge are made of W-7 Cu.
  7. 7. The fuel gas generator according to claim 1, wherein heat insulating layers are provided on the sealing surfaces between the frame and the filter element, between the casing and the charge, and between the casing and the end cover.
  8. 8. The gas generating device of claim 1, wherein the skeleton is formed by processing a high-temperature alloy rod GH1131, and the surface of the skeleton is subjected to compression molding vulcanization to form an AR01 ablation layer with the thickness of 1 mm.

Description

High-energy clean gas generating device Technical Field The invention relates to the technical field of gas generators, in particular to a high-energy clean gas generator. Background The current gas generating device mainly provides a power medium for actuating mechanisms such as a gesture track control power system, a liquid gesture control storage tank for pressurization, a liquid engine turbine for starting, a throwing and releasing device and the like, or is used as a main engine of a small precise guided weapon system, in order to improve working efficiency and reduce negative quality, a high-energy improved double-base propellant or a high-energy composite propellant is generally adopted as a charge of the small precise guided weapon system, a large amount of active metal powder such as Al, mg, ti and the like is added for improving specific impact and burning speed, so that gas and flame contain a large amount of ionization products and free electrons, and the following application problems exist in various occasions: 1. the high-temperature, high-pressure and high-speed air flow rich in metal particles can seriously wash and ablate the movable parts of the actuating mechanism, and failure modes such as clamping stagnation, perforation, overpressure disintegration and the like often occur; 2. the high-concentration and turbid fuel gas belongs to plasmas with high electron density and electron collision frequency, and can lead to signal attenuation, phase change and the like due to the intersection with a radar microwave transmission path, thereby influencing the guidance precision of the missile; 3. The infrared photoelectric characteristic is obvious and is used as a tracked striking target. The prior solution is that a gas generating device or an engine adopts a medium-low energy propellant to reduce the content of metal elements such as Al, K, mg and the like in the propellant, adjusts the position of an antenna on a bullet to avoid tail flame and increase signal emission power, or adopts a short-time pulse gas device with front-end ignition and tail-end exhaust, and the measures cannot fundamentally meet the requirements of long endurance, high-energy cleaning and low-characteristic power media. Disclosure of Invention Aiming at the technical problems, the invention provides the high-energy clean gas generating device which has high output energy density, high working efficiency and high output gas cleanliness, adopts a freely-filled charging structure, has the technical characteristics of serialization, generalization and the like, can flexibly expand application to various occasions, and effectively solves the application problems that an executing mechanism is subjected to gas scouring and ablation, microwave signal interference and the like. The utility model provides a clean gas generating device of high energy, includes the gas generator body and installs in power take off joint and temperature measuring device of gas generator body exit end through the export flange, the gas generator body includes casing, some firearm, pressure sensor and installs in the casing ignition medicine box, filter component, sealing ring, powder charge, end cover, clamping ring one, stifled piece, press the spiral shell, filter component is close to casing exit end one side and is fixed, including skeleton, filter core, clamping ring two, the filter core adopts the suppression of multilayer molybdenum wire net to form, and compresses tightly on the skeleton through clamping ring two, the ignition medicine box passes through the sealing ring to be fastened on the filter core, the other end of casing passes through end cover and clamping ring one and seals the locking, some firearm and pressure sensor are connected with the casing through the reserved joint of casing exit end, the outlet end of casing is located to the stifled piece and is through the locking of pressing spiral shell, the powder charge is located the casing inner chamber, some firearm, ignition medicine box and powder charge constitute tertiary ignition sequence, pressure sensor and ignition medicine box form the passageway. As the optimization of the technical scheme, the molybdenum wire net is Mo01 pure molybdenum wire with the wire diameter of 0.18mm-0.25mm, the forming compression rate of the molybdenum wire is 30% -35%, the rebound rate is not more than 3%, and the filtering precision is not less than 50 mu m. As the optimization of the technical scheme, the length-diameter ratio of the charging is larger than 6, the buffer pads are arranged at the head end and the tail end of the charging, and the buffer pads are made of the aviation sponge rubber plate with the model HM 102. Preferably, the radial unilateral clearance between the charging and the shell is 0.5mm. As the optimization of the technical scheme, the sealing ring is formed by splicing 3 circular arc sealing ring monomers with the angle of 120 degrees. As the optimization of the te