98results about How to "Fast blocking" patented technology

The utility model discloses a linkage processing method of the safety information in the network which comprises a plurality of linkage units and linkage processing devices, and is characterized in that the safety information is obtained from the linkage units and comprises an alarm parameter; an attack source device is positioned according to the alarm parameter and a linkage strategy corresponding to the alarm parameter is searched; the linkage strategy controls safely the attack source device by the corresponding linkage units. The utility model can be flexibly combined with the journaling system, the network management system, the authenticating system. The network equipment, can rapidly locate the attacker by the authenticating system and then send the safe strategy disposition to the network equipment, and can rapidly stop and control the oriented source.

The invention relates to a rapid plugging device of a dewatering well with a deep foundation, which comprises a plugging sleeve, a plugging cover base, a plugging cover, an external water stopping ring, an inner water stopping ring and a water stopping plate, wherein the plugging cover base is a ring base connected and vertically fixed with the lower part of the inner wall of the plugging sleeve, more than three bolts are welded on the circumference in equal parts of plugging cover base, the plugging cover is provided with bolt holes relative to the bolts of the plugging cover base, the inner and external water stopping rings are vertically fixed and connected to the inner and outer walls of the plugging sleeve, the water stopping plate and the inner water stopping ring are connected through welding or flange. The device has simple structure, low process cost, convenient use and wide adaptability, and uses unified construction method to replace each plugging process, has rapid plugging, low cost, no construction risk and dangers, avoids the limitless underground water pumping, and protects the environment.

The invention provides a construction structure for plugging water and sand gushing from a foundation pit base. The construction structure comprises a steel sleeve, a concrete cover plate, a groutingreinforcing layer placed below the concrete cover, a concrete bottom plate and a concrete backfill layer of the bottom plate; the concrete construction method specifically comprises the following steps that the steel sleeve is installed with a water and sand gushing point as the circle center, and the bottom of the steel sleeve extends to the position 1m below the foundation pit base; waterstop ring plates are installed on the middle part and the upper part of the steel sleeve; high-grade early-strength concrete is poured into the steel sleeve to form the concrete cover plate, and after the final setting of the concrete, and grouting reinforcement of a disturbed soil layer is carried out within the range of the depth range of 1.0 m below the bottom of the cover plate within the scope of the cover plate of the concrete cover plate in the periphery of the steel sleeve; then a drain valve in the side wall of the steel sleeve is opened, and a sleeve opening of the steel sleeve is plugged through a sealing flange steel cover plate; and finally, the drain valve in the side wall of the steel sleeve is closed, and grouting into the steel sleeve is carried out for plugging the water gushingthrough a grouting pipe reserved in the steel cover plate. According to the construction structure and method for plugging the water and sand gushing from the foundation pit base, the plugging speedis high, the effect is good, the cost is low, and the control effect of a water gushing range is remarkable.

The invention relates to an impervious blocking agent, and belongs to the technical field of oilfield drilling. The impervious blocking agent comprises the following components in percentage by weight: 40-80% of superfine calcium carbonate, 20-60% of fiber material, 0-10% of vegetable glue and 0-10% of diluter. With the adoption of the impervious blocking agent, the filter loss of drilling fluid can be reduced, the pore space of an oil layer is blocked, an oil gas layer is protected, and the sealing quality of a micro-crack oil layer and high-permeability oil layer well cementation is improved.

The object of the present invention is to provide a sealer gun in which even an operator having no expert skill can easily conduct application by optionally setting the bead width, and keep the application uniform from the initial stage to the final stage. In the sealer gun, the needle valve is moved backward by predetermined strokes by operating the trigger, and a sealer is spouted from the gap between the valve seat and the needle valve. In this instance, with the adjusting knob of the notch portion provided in the base portion of the gun body, the position-adjusting member is moved back and forth, and the moving-backward stroke of the needle valve is controlled. The tapered portion 8b is formed at the tip of the needle valve, and the orifice member is provided in the sealer passage in the downstream of the valve seat so as to absorb the pulsating pressure variation of the sealer.

A device for altering the airflow pattern from a ceiling vent diffuser by obstructing openings in a region of the diffuser. The device comprises a flexible member that is secured to a diffuser vane by a hook member and two tabs. The hook member has two or more engagement regions which enable it to engage vanes on different manufacturer's diffusers. The first end of the hook member is either pivotally secured to the flexible member or is engaged in an adjustment mechanism thereon. The adjustment mechanism allows the second end of the hook to be situated in different positions relative to an interior edge of the flexible member so as to accommodate different diffusers. An extension detachably engages the flexible member to increase the size thereof to accommodate larger diffusers.

The invention relates to a DC power distribution network multi-function fault current controller and a control method. The multi-function fault current controller is formed by a series convertor loop(1) and a parallel convertor loop (2). The series convertor loop (1) is formed by an NPC full-bridge circuit, an LCL filter, a DC capacitor and a DC bleeder resistor. The parallel convertor loop (2) is formed by an NPC three-level DAB circuit. Under a stable state, the fault current controller can compensate circuit voltage surge, sag and pulsation; and under a fault state, the fault current controller can provide current-limiting inductance and backward voltage, thereby comprehensively realizing multiple functions of voltage regulation of a DC power distribution network and current limiting and blocking of the fault current, and improving use efficiency of the fault current controller.

The invention relates to a rapid plugging agent. The rapid plugging agent is mainly composed of hemihydrate gypsum, magnetized six barium ferrite, cement, a promoter, a plasticizer, a curing agent, etc. The rapid plugging agent has characteristics of rapid plugging speed, high activity, good plugging property and chemical stability, good rheological performance and uniform compressive strength ratio.

The invention provides a ceramic microsphere, a diaphragm containing the ceramic microsphere and a lithium ion battery containing the diaphragm. Different from a conventional diaphragm of a lithium ion battery, the diaphragm disclosed by the invention is mainly characterized in that two high-safety coated microspheres, namely conductive microspheres and ceramic microspheres, of thermosensitive blocking lithium ions and thermosensitive conduction electrons are prepared by adopting a polymer coating method, and the two high-safety coated microspheres are applied to the diaphragm of the lithium ion battery. The diaphragm of the lithium ion battery has two functions, namely a thermosensitive lithium ion blocking function and a thermosensitive conduction function, and the safety performance ofthe lithium ion battery can be effectively improved.

The invention discloses a fast HTTP redirection method. The method comprises the following steps: step one, a terminal sends a first message of TCP three-way handshake to a server; step two, the server responds a second message of the TCP three-way handshake to the terminal, and a switch mirrors the message to an admission control server; step three, the admission control server sends a HTTP redirection message to the terminal when receiving the message mirrored in the step two; step four, the terminal receives the second message of the TCP three-way handshake responded by the server, and sends a third message of the TCP three-way handshake to the server; step five, the terminal receives the HTTP redirection message sent by the step three, and stores the same in the TCP cache; step six: the terminal sends a HTTP request to the server and waits the HTTP response; step seven, the terminal takes out the HTTP redirection message received in the step five, and then executes the HTTP redirection. By use of the fast HTTP redirection method disclosed by the invention, the defect that the existing HTTP redirection method is invalid under a specific condition is effectively solved, and the fast blocking is realized.