5results about How to "Reduce drain pressure" patented technology

The utility model relates to the technical field of construction equipment, more specifically to the construction system for drilling and grouting construction in the shaft, it includes: support frame, the support frame is connected with hydraulic feeding drive mechanism, it has the feeding movement part that moves to and fro, the feeding movement part is connected with hydraulic rotary drive mechanism, it has the rotary output part of output rotation torque, drilling tool has water hammer (such as high pressure water power downhole percussion hammer) and water hammer drill rod, grouting subassembly has grouting drill rod, the chuck is provided on the rotary output part, and water hammer drill rod has: the water hammer drill rod connecting portion that chuck holds fast, grouting drill rod has: the grouting drill rod connecting portion that chuck holds fast, through the water hammer drill rod connecting portion or grouting drill rod connecting portion can be detached and hold fast on chuck, to make: drive unit drives water hammer drill rod to rotate and feeds and carries out drilling, or, drive unit drives grouting drill rod to rotate and feeds and drills into grouting hole.

This invention provides a novel anti-clogging device for filter media in concealed drainage pipes. The anti-clogging device comprises at least one unit and includes a crushing component. The crushing component includes a support frame installed inside the drainage pipe, on which a crushing blade is rotatably mounted. The crushing blade rotates under the impact of water flow. This invention utilizes the impact force of the water pressure within the drainage pipe to rotate the crushing blade, thereby crushing and guiding the silt, debris, and filter media particles in the wastewater out of the drain. This significantly improves drainage efficiency, reduces the frequency of drainage pipe blockage, and enhances the drainage capacity and service life of the drainage pipe.

The invention relates to the technical field of drainage channels, in particular to an automatic drainage channel for hydraulic engineering, which comprises diversion mechanisms arranged on two sides of a drainage channel body and in the channel and a filter mechanism arranged in the drainage channel body. Through the arrangement of the flow dividing mechanism comprising the flow dividing pipe, the flow dividing channel and the flow blocking plate, rapid flow dividing of a water body in the flood drainage channel body is achieved, and the effects of reducing the drainage pressure of the flood drainage channel body and avoiding water flow blocking and channel body overflowing are achieved; according to the device, the grading interception of floating objects with different volumes in a water body is realized, the effects of improving the water body filtering effect and guaranteeing the cleanliness of a flood drainage water body are achieved, and the dynamic reciprocating motion of a screen is realized by arranging a pulling assembly comprising a sliding groove, a sliding block, a sliding strip and a linkage rod piece; the effects of preventing floating objects on the surface of the screen from being accumulated, avoiding blockage of the filtering channel and maintaining long-term stable operation of the filtering mechanism are achieved.

This utility model provides a fully gravity-fed drainage structure for a switchyard, belonging to the field of water conservancy and hydropower technology. It includes a switchyard site, and a relay protection building and a GIS building respectively installed on top of the site. Both the relay protection building and the GIS building have basements for cable laying at their bases. The two basements are connected by a cable corridor. A site drainage ditch is installed around the outer perimeter of the switchyard site, and an indoor drainage ditch is installed around the inner perimeter of the basements. A corridor drainage ditch is installed inside the cable corridor, and a collection well is also installed in the basement of the GIS building. This utility model, through its gravity-fed and centralized drainage design, solves the problem of flooding caused by water pumps used for drainage when indoor water seepage occurs, especially in cases of pump equipment failure or power outage.

The present application relates to railway roadbed technical field, disclose a kind of railway roadbed anti-seepage drainage system, comprising: solid waste base composite anti-seepage layer, solid waste base composite anti-seepage layer is set in the upper of road basic body along height direction;Hierarchical solid waste drainage layer, hierarchical solid waste drainage layer is set between solid waste base composite anti-seepage layer and road basic body;Slope anti-seepage slope protection layer, slope anti-seepage slope protection layer is set on roadbed slope;Intercepting and draining structure, intercepting and draining structure is set on solid waste base composite anti-seepage layer;Roadbed side drainage system, roadbed side drainage system is respectively communicated with hierarchical solid waste drainage layer, slope anti-seepage slope protection layer and intercepting and draining structure, suitable for collecting liquid from hierarchical solid waste drainage layer, slope anti-seepage slope protection layer and intercepting and draining structure and leads to the range of roadbed. Hierarchical solid waste drainage layer rapidly leads to drainage leachate, cooperates with roadbed side drainage system to collect and process, reduces water body invasion risk. Slope anti-seepage slope protection layer intercepts slope water body penetration, leads into drainage system, prevents penetration road basic body.