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发明公开
CN103510943A 一种用于煤矿突出预测的深钻孔瓦斯涌出初速度测定仪 无效 - 撤回

一种用于煤矿突出预测的深钻孔瓦斯涌出初速度测定仪
摘要：
本发明涉及一种用于煤矿突出预测的深钻孔瓦斯涌出初速度测定仪，它包括膨胀液管、手动试压泵、封孔器、流量管及孔板流量计，所述封孔器端部设置有注液管接头和流量管接头；所述膨胀液管一端与所述手动试压泵连接，所述膨胀液管另一端与所述注液管接头连接；所述流量管一端与所述孔板流量计连接，所述流量管另一端与所述封孔器的流量管接头连接。本发明能够增大钻孔深度，并对钻孔起到有效密封作用，本发明可广泛应用于钻孔瓦斯涌出初速度测量领域中。
摘要（英）：

The invention relates to an instrument for measuring initial velocity of gas discharged from a deep drill hole for coal mine outburst prediction. The instrument comprises an expansion fluid tube, a manual hydraulic test pump, a hole sealing device, a flow tube and an orifice plate flowmeter, wherein a liquid injection tube connector and a flow tube connector are arranged at the end part of the hole sealing device; one end of the expansion fluid tube is connected with the manual hydraulic test pump; the other end of the expansion fluid tube is connected with the liquid injection tube connector; one end of the flow tube is connected with the orifice plate flowmeter; the other end of the flow tube is connected with the flow tube connector of the hole sealing device. The instrument provided by the invention can increase the depth of a drill hole and play a sealing effect on the drill hole, and is widely used in the field of initial velocity measurement of discharged gas.

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