Unlock instant, AI-driven research and patent intelligence for your innovation.
An energy-saving control device and control method for the orifice of a borehole gas drainage pipeline
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology for gas drainage and energy-saving control, applied in the direction of gas discharge, earthwork drilling, safety devices, etc., can solve problems such as energy loss, low flow, high negative pressure, etc., achieve reasonable distribution and improve gas drainage efficiency Effect
Active Publication Date: 2019-09-27
SHANDONG UNIV OF SCI & TECH
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the drainage pipelines currently used in mine sites generally have the disadvantages of high negative pressure and low flow, resulting in energy loss
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] An energy-saving control device for borehole gas drainage pipeline orifice, its structure is as follows: figure 1 As shown, it includes front-end gas drainage pipe 1, drainage control pipe 2 and rear-end gas drainage pipe 3, and the drainage pipes are connected by flange 4, wherein the front-end gas drainage pipe 1 is directly connected to the gas drainage drill The holes 5 communicate with each other, and communicate with the back-end gas drainage pipe 3 through the drainage control pipe 2, and the rear-end gas drainage pipe 3 is used to connect with external gas drainage equipment.
[0032] The drainage control pipe 2 is provided with a judging mechanism and a pipeline opening and closing unit.
[0033] The judging mechanism comprises a circular opening 6, a rubber cover 7 set outside the circular opening 6, and a reading device fixed on the rubber cover 7. The rubber cover 7 is elastic, and the reading device consists of two vertical plates 8 , two springs 9, two fl...
Embodiment 2
[0039] On the basis of the above embodiments, the present invention also mentions a method for energy-saving control of borehole gas drainage pipeline openings, which specifically includes the following steps:
[0040] Step 1: According to the coal seam geology and gas occurrence conditions of the specific mine, reasonably design the gas drainage drilling, and carry out the drilling construction. After drilling, arrange the drainage pipeline in the hole and seal the hole;
[0041] Step 2: Determine the appropriate position of the scale mark on the plate according to the elastic coefficient of the spring, the displacement of the end of the string when the rubber sheath is sunken, and the negative pressure of extraction;
[0042] Step 3: After the drainage pipeline is arranged, install the front-end gas drainage pipe, drainage control pipe, and rear-end gas drainage pipe in sequence, and pass through the front-end gas drainage pipe, drainage control pipe, and rear-end gas drainag...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a drilling gas extraction pipeline orifice energy-saving control device and method, and belongs to the field of gas extraction. The drilling gas extraction pipeline orifice energy-saving control device comprises a front-end gas extraction pipe, an extraction control pipe and a rear-end gas extraction pipe which are connected through flanges; the front-end gas extraction pipe communicates with a gas extraction drill hole, and the rear-end gas extraction pipe is connected with outside gas extraction equipment; when the gas flow in the gas extraction drill hole is small, ahandle of a pipeline opening and closing device is rotated to enable a circular blocking piece to be perpendicular to the axis of the extraction control pipe, and thus a gas extraction pipeline is plugged; and when the gas flow is large, the handle is rotated to enable the circular blocking piece to be parallel to the axis of the extraction control pipe, thus the gas extraction pipeline is opened, and the gas extraction drill hole conducts gas extraction. By controlling communicating and separation of the front-end gas extraction pipe and the rear-end gas extraction pipe, reasonable distribution of the negative pressure inside the pipeline is achieved, and the gas extraction efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of gas drainage, and in particular relates to an energy-saving control device and a control method for an orifice of a drilling gas drainage pipeline. Background technique [0002] During the formation of coal, a large amount of hydrocarbon gas, mainly methane, is associated with it, commonly known as gas or coalbed methane. The formation, storage and release of gas have been accompanied by the entire coal-forming process. In the long geological age, with the coal-bearing strata undergoing various tectonic movements, most of the gas has escaped into the atmosphere, and only part of it remains in the coal seam and rock formation. Underground gas disaster is one of the most serious disasters in the coal mine production process. Coal and gas outbursts are the first major disasters that plague the efficient and safe production of coal mining enterprises. At present, my country ranks first in the world in terms...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More