Carbon dioxide fracturing device and method for rock breaking by using carbon dioxide fracturing device

A technology of carbon dioxide and liquid carbon dioxide, applied in the direction of earthwork drilling and discharge machinery, etc., can solve the problems of the filling volume not meeting the design requirements, affecting the effect of expansion rock breaking, increasing labor intensity, etc., to save labor time, the effect The effect of improving and saving raw material costs

Pending Publication Date: 2017-10-10
赵东
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Problems solved by technology

Although this method is helpful to remove the air in the cavity of the main body, it still cannot achieve the purpose of removing all the air in the cavit

Method used

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  • Carbon dioxide fracturing device and method for rock breaking by using carbon dioxide fracturing device

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Embodiment Construction

[0036] In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the application according to the present invention will be described in detail below with reference to the drawings and preferred embodiments. . In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, specific features, structures, or characteristics in one or more embodiments may be combined in any suitable form.

[0037] Such as figure 1 As shown, a carbon dioxide cracker provided by an embodiment of the present invention includes:

[0038] Filling valve 1, main pipe 2, relief valve 3, constant pressure shear blade 4 and heating device 5, among which,

[0039] The main pipe 2 is connected to the filling valve 1. The main pipe 2 includes a cavity 21 for containing liquid carbon dioxide, a first exhau...

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Abstract

The invention discloses a carbon dioxide fracturing device and a method for rock breaking by using the carbon dioxide fracturing device, and relates to the technical field of rock breaking through carbon dioxide phase-change expansion. A first air exhausting device and a second air exhausting device are arranged on a main pipe, so that air in a cavity of the main pipe overflows from the first air exhausting device and the second air exhausting device under the double action of cooling down of thermal circulation and filling pressure, and thus filling of liquid carbon dioxide and air exhausting can be conducted synchronously and completed simultaneously. According to the main technical scheme of the carbon dioxide fracturing device, the carbon dioxide fracturing device comprises a filling valve, the main pipe and an energy releasing valve, wherein the main pipe is connected with the filling valve; the main pipe comprises a cavity for containing the liquid carbon dioxide, the first air exhausting device and the second air exhausting device, the first air exhausting device is arranged on the upper portion of the main pipe and communicates with the cavity, and the second air exhausting device is arranged on the lower portion of the main pipe and communicates with the cavity; and the energy releasing valve is connected with the main pipe, and is connected with the cavity through a constant pressure shearing sheet. The carbon dioxide fracturing device and the method for rock breaking by using the carbon dioxide fracturing device are mainly used for blasting rock mass.

Description

Technical field [0001] The invention relates to the technical field of carbon dioxide phase change expansion and rock breaking, in particular to a carbon dioxide cracker and a method for rock breaking using the carbon dioxide cracker. Background technique [0002] Under the action of external excitation energy, liquid carbon dioxide will change from liquid to gas, causing liquid-gas phase change and volume expansion. By controlling the size of the excitation energy and the timing of the liquid-gas phase change, the carbon dioxide gas medium can be instantly expanded to produce mechanical energy. Do work, the mechanical energy acts on the rock mass, which can realize the carbon dioxide phase change expansion to break the rock. [0003] The carbon dioxide cracker is mainly composed of a main body pipe, a filling valve, an energy relief valve, a constant pressure shearing piece, a heating device, an exciter and so on. The main body tube is used to contain liquid carbon dioxide and pr...

Claims

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Application Information

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IPC IPC(8): E21C37/14
CPCE21C37/14
Inventor 赵东杨传祥赵海山张磊
Owner 赵东
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