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DEVICE FOR SELECTION OF HOLE SIZE FOR EASY DETACHABLE ELEMENT OF CONSTRUCTION AND ITS MASS, DESIGNED TO PROTECT BUILDINGS AND STRUCTURES FROM EXPLOSIONS
DEVICE FOR SELECTION OF HOLE SIZE FOR EASY DETACHABLE ELEMENT OF CONSTRUCTION AND ITS MASS, DESIGNED TO PROTECT BUILDINGS AND STRUCTURES FROM EXPLOSIONS
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机译：一种用于选择易于拆卸的建筑及其质量的孔尺寸的装置，旨在保护建筑物和结构免受爆炸的影响
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摘要
FIELD: blasting operations.;SUBSTANCE: device for selection of the hole size for easy detachable element of construction and its mass, designed to protect buildings and structures from explosions comprises an explosive chamber, in the upper base of which there is a hole overlapped by the easy detachable element. The hole area can vary by screwing the removable rings. The detachable element overlaps the hole in the ring, over which a protective shield is fixed. The second hole is overlapped by the valve which is pressed against the hole by means of an electromagnet and opens by the spring during opening of the contacts. The pressing force of the valve and compressing the spring is set so as the total force to be equal to the allowed pressure multiplied by the area of the valve hole, i.e. ΔF=Fe.m - Fpr=ΔPdm Scl, where Fe.m is the force of the electromagnet pressing the valve to the hole, N/m2; Fpr is force of compressing the spring, opening the valve, H:Fpr=(10÷15) gm, where g = 9.81 m/s2; m is mass of the electromagnet core with the valve, kg; ΔRdm is allowable pressure drop for the model plant; Scl is the area of opening the valve, m2. The easy detachable comprises a metal armoured frame with metal armoured coating and filler - lead having at the ends four fixed support tubes. In coating of the explosive object four support rods are rigidly embedded, which are telescopically inserted in the fixed support tubes of the panel. The filler is made in the form of the dispersion system air-lead, at that the lead is made in the form of crumbs, and the support rods are made elastic. Additionally, it comprises elastic-damping collapsing elements of single action, which are mounted on the support rods to the sheet-abutments through the damping base with the screws. A sleeve of single action is attached by the flange with the screws to the base coaxially to the rod, made of fragile, collapsible material such as porcelain. The space between the sleeve and the elastic part of the collapsible element is filled with construction foam, which connects the leaf springs with the sleeve of single action, forming a three-dimensional damper, which contributes to reliable fastening of the leaf springs and receives the first shock pulse.;EFFECT: invention enables to improve the efficiency of protection against explosions.;3 dwg
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机译：领域：爆破作业。物质：一种用于选择孔尺寸的装置，用于易于拆卸的结构及其质量，旨在防止建筑物和建筑物爆炸，该装置包括炸药室，炸药室的上部底部有一个孔，该孔与容易拆卸的元素。可以通过拧下可移动的环来改变孔的面积。可拆卸元件与环上的孔重叠，固定有防护罩。第二孔被阀重叠，该阀通过电磁体压在该孔上，并在触点打开时由弹簧打开。阀的压力和压缩弹簧的压力应设置为使总力等于允许压力乘以阀孔面积，即ΔF= Fe.m-Fpr =ΔPdmScl，其中Fe.m为电磁铁将阀门压向孔的力N / m 2 ; Fpr是弹簧压缩力，打开阀门时的力，H：Fpr =（10÷15）gm，其中g = 9.81 m / s 2 ; m是带阀的电磁体的质量，kg; ΔRdm是模型工厂的允许压降; Scl是打开阀门的面积，m 2 。易于拆卸的装置包括带有金属铠装涂层和填充物的金属铠装框架-引线的末端有四个固定支撑管。在涂覆爆炸物时，刚性地嵌入了四个支撑杆，这些支撑杆可伸缩地插入面板的固定支撑管中。填充物以分散系统空气引线的形式制成，在这种情况下，引线以碎屑的形式形成，支撑杆具有弹性。另外，它包括单作用的弹性阻尼折叠元件，该弹性折叠元件通过螺钉通过阻尼底座安装在支撑杆上，并固定在片基上。单作用套筒通过法兰用螺钉固定在基座上，并与杆同轴，该杆由易碎，可折叠的材料（例如瓷器）制成。套筒和可折叠元件的弹性部分之间的空间填充有建筑泡沫，该泡沫将板簧与单作用套筒连接起来，形成三维阻尼器，从而有助于板簧的可靠固定并容纳板簧。第一个冲击脉冲。效果：本发明可以提高防爆的效率。3 dwg
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