Mine liquid co2 phase change fracturing equipment damping rod and equipment
A shock-absorbing rod and cracking technology, which is applied to shock absorbers, springs/shock absorbers, shock absorbers, etc., can solve the problem that the shock absorbing structure cannot meet the special requirements of coal seam shock absorbing, and achieves simple structure and high performance. handy effect
Inactive Publication Date: 2015-11-25
湖南汉寿中煤科技有限公司
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Problems solved by technology
[0003] Aiming at the above-mentioned shortcomings that the damping structure in the prior art cannot meet the special requirements of coal seam damping, the present invention provides a new mining liquid CO 2 Phase change fracturing equipment damping rod and equipment, through a special structural design, can fully meet the requirements of mining liquid CO 2 Requirements for shock absorption of phase change fracturing equipment
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[0016] This embodiment is a preferred embodiment of the present invention, and other principles and basic structures that are the same as or similar to those of this embodiment are within the protection scope of the present invention.
[0017] Please see attached figure 1 , the damping rod in the present invention mainly includes a push rod 1, a dustproof ring 2, a compression sleeve 3, a sleeve 4, a liquid injection valve joint 5, a first disc spring 6, a second disc spring 8 and a locking sleeve Rod 7, wherein the sleeve 4 is the main part of the shock absorbing rod, the liquid injection valve joint 5 is installed at one end of the sleeve 4, and the push rod 1 is inserted at the other end of the sleeve 4, and the push rod 1 is sleeved with a compression valve. Sleeve 3, compression sleeve 3 is set between the push rod 1 and the sleeve 4, the compression sleeve 3 is covered with a dust-proof ring 2, and the dust-proof ring 2 is set at the position where the compression sleeve...
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The invention discloses a shock absorption rod for a mine liquid carbon oxide phase changing and cracking device and the mine liquid carbon oxide phase changing and cracking device. The shock absorption rod comprises a pushing and connecting rod, a pressing sleeve, a sleeve, a liquid injection valve connector, a first disc spring, a second disc spring and a locking sleeve rod. The liquid injection valve connector is installed at one end of the sleeve, and the pushing and connecting rod is installed in the other end of the sleeve in an insertion mode. The pushing and connecting rod is provided with the pressing sleeve in a sleeved mode, and the pressing sleeve is arranged between the pushing and connecting rod and the sleeve. The locking sleeve rod is arranged in the first disc spring in an insertion mode and installed on the pushing and connecting rod, and the second disc spring is arranged between the tail portion of the locking sleeve rod and the liquid injection valve connector. An electrode connecting cylinder is arranged in the pushing and connecting rod and arranged outside an insulating cylinder in a sleeved mode. A first input electrode is arranged in the insulating cylinder, and a second input electrode is connected to the electrode connecting cylinder. An insulating block is arranged in the liquid injection valve connector, a first output electrode and a second output electrode are installed in the insulating block and electrically connected through a wire, and the second input electrode is electrically connected with the second output electrode through a wire.
Description
technical field [0001] The invention discloses a shock-absorbing device, in particular to a mining liquid CO 2 Phase change fracturing equipment shock absorber and equipment. Background technique [0002] liquid CO 2 Phase change fracturing technology is currently widely used in coal mines, and its main principle is to 2 is heated by liquid CO 2 The thermal expansion produces a strong impact force, which loosens the coal seam, thereby achieving the effect of cracking. In the prior art, the liquid CO 2 The phase change occurs, mainly through the electric heater to the liquid CO 2 Heating causes a phase change. liquid CO 2 During the use of phase change fracturing equipment, it needs to be inserted into the coal seam hole, which is prone to vibration during the insertion process, and it needs to be damped by a shock absorber. Due to the special structure in the coal seam, the existing technology The use of shock-absorbing structures often cannot meet the needs. Conte...
Claims
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IPC IPC(8): F16F13/00E21B43/26
Inventor 高德安熊猛王杰
Owner 湖南汉寿中煤科技有限公司