Dynamic balance experiment device and method for goaf gas transportation and coal spontaneous combustion heat transfer
A technology of dynamic balance and experimental equipment, which can be used in aerodynamic tests, measuring equipment, thermal development of materials, etc., and can solve problems such as disasters and accidents
Pending Publication Date: 2021-07-02
NORTH CHINA INST OF SCI & TECH
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Problems solved by technology
[0005] To sum up, the coal spontaneous combustion process involves oxygen transport and diffusion, heat transfer and coal-oxygen reaction. , unbalanced development will inevitably lead to the occurrence of disasters and accidents
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[0034] One embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the invention is not limited by the specific embodiments.
[0035] In the description of the invention, it is to be understood that the terms "center", "longitudinal", "horizontal", "length", "width", "thickness", "upper", "under", "front", " After "," left "," right "," vertical "," horizontal "," top "," bottom "," inside "," outside "," axial "," radial "," circumferential " The orientation or positional relationship of the indication is based on the orientation or positional relationship shown in the drawings, is merely described in order to facilitate the description of the technical solutions and simplified descriptions of the present invention, rather than indicating or implying that the device or component must have a specific orientation. Structure and operation in a specific orientation, it is not unde...
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The invention relates to the technical field of goaf experiment devices, and discloses a dynamic balance experiment device and method for goaf gas transportation and coal spontaneous combustion heat transfer. The device comprises a coal bunker, a coal bunker cover plate, a ventilation part, a temperature itinerant detector and a plurality of heating parts, the coal bunker is used for containing coal samples, and the coal bunker cover plate is movably connected to the coal bunker and used for sealing the coal bunker; a plurality of connecting holes are formed in the coal bunker cover plate, the connecting holes can be connected with a sampling part, the sampling part is used for sampling gas at different positions in the coal bunker, the ventilation part is connected with the coal bunker and used for providing air flow for the interior of the coal bunker, and a plurality of probes of the temperature inspection instrument are buried in the middle of a coal sample, are distributed in a grid shape, and are used for measuring the temperature value of each coal sample in real time. The invention aims to simulate the dynamic balance problem of the air flow field and the temperature field of the goaf in real time.
Description
Technical field [0001] The present invention relates to the technical field of taking an emperor experimental apparatus, and in particular, to a vacuum region gas transport and coal self-combustion heat transfer dynamic balance experimental apparatus and method. Background technique [0002] The inner hole in the vacuum area has the characteristics of bendability, no pertility, and randomness. The working surface will flow in a porous medium composed of the fungus area in the coal rock body, forming a turbulence, transition flow, and laminar flow. Nonlinear infiltration field; temperature field distribution can also affect the flow of gas due to the presence of the overspeed area of the healing, and the gas concentration within the pore is changed, and the gas flow in the air area is caused. Extremely complicated. [0003] At present, the research of gas migration regularity in the vacuum area mainly adopts two methods of physical similar simulation and numerical simulation. Ph...
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IPC IPC(8): G01N25/42G01M9/00
CPCG01N25/42G01M9/00
Inventor 司俊鸿王乙桥程根银李林李潭胡伟邵意添
Owner NORTH CHINA INST OF SCI & TECH