Self-adaptive rock breaking device capable of repeatedly and automatically releasing ultrahigh-pressure gas and sealing holes

By using an adaptive ultra-high pressure gas repetitive automatic release and sealing rock breaking device, which utilizes a fracturing device, piston assembly, and sealing mechanism, the problem of irreversible damage to the fractured pieces is solved, achieving a highly efficient rock fracturing and sealing process, improving operational efficiency and reducing consumable costs.

CN224415915UActive Publication Date: 2026-06-26HOHAI UNIV
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Patent Information

Application Number
CN202521462013.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-06-26
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

In existing high-pressure gas fracturing devices, the irreversible damage to the fracturing discs necessitates cumbersome disassembly and replacement after each fracturing operation, reducing operational efficiency and increasing material consumption. This has become a bottleneck restricting the improvement of efficiency and cost control of high-pressure gas rock breaking technology.

Method used

The rock-breaking device adopts an adaptive ultra-high pressure gas repetitive automatic release and sealing mechanism. Through the fracturing device, piston assembly, sealing mechanism and biomass foam combustion pressurization, it realizes automatic sealing, trigger release and self-resetting closure of high pressure gas, avoiding frequent disassembly and assembly of the fracturing disc.

Benefits of technology

It achieves a highly efficient rock fracturing process, eliminating the need for frequent disassembly and replacement of fracturing discs, thus improving operational efficiency, reducing material costs, and maintaining the integrity of the instantaneous sealing hole after fracturing.

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Abstract

The utility model discloses a self-adaptive rock breaking device capable of repeatedly and automatically releasing ultrahigh pressure gas and sealing holes, which relates to the technical field of gas fracturing and comprises a fracturing device, a first end cover and a second end cover are respectively arranged at two ends of the fracturing device, and a reaction cabin is arranged in the fracturing device; the pressurizing mechanism is arranged on the first end cover in a penetrating manner and is used for increasing the air pressure in the reaction cabin through the combustion of the biomass foam; the piston assembly is located between the fracturing device and the second end cover and used for being matched with the second end cover to release gas so as to achieve rock breaking; the hole sealing mechanism is located on the outer side of the fracturing device and used for preventing gas from leaking out so as to maintain the hole sealing integrity at the fracturing moment; and the second end cover is used for ejecting the gas in a bundling manner. By utilizing the balance of the gas pressure of the reaction cabin and the top pressure cabin in the fracturing device and the special structure of the piston, the rock fracturing can be more efficiently completed under the condition that a fracturing sheet does not need to be installed in the fracturing device and is frequently disassembled and replaced.
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