9 results about "Diversion dam" patented technology

An initial rainwater diversion and purification ecological ditch comprises a precipitation unit, an initial rainwater diversion unit and a primary purification unit which are sequentially connected in series. The precipitation unit comprises a precipitation area, a precipitation area water inlet is formed in the upper part of the side wall of the precipitation area, and a sludge discharge mechanism is arranged at the bottom of the precipitation area; the initial rainwater diversion unit comprises a diversion dam, the diversion dam sequentially comprises a settling area limiting table, a filler filtering area, a rainwater drainage area and a flood drainage area from bottom to top, and the rainwater drainage area and the flood drainage area are externally connected with a rainwater and flood drainage channel; the first-stage purification unit comprises a first-stage treatment area, the first-stage treatment area is communicated with the settling area through a filler filtering area, a water retaining wall which is not lower than a diversion dam is arranged in the water flow direction of the first-stage treatment area, and the two sides of the diversion dam are adjacent to the settling area and the first-stage treatment area respectively. Through reasonable arrangement of the structure, effective diversion of initial rainwater and efficient drainage of middle and later rainwater are achieved, the residence time of the initial rainwater in the ecological ditch is prolonged, and the purification effect on pollutants in the rainwater is improved.

The application discloses a method for discharging and segmentally depositing and stacking of tailings of tin polymetallic ore dressing, which comprises the following steps: (1) conveying the tailings of the ore dressing plant to a tailings pond, and discharging the tailings alternately from two ends according to the actual situation of the rising and subsidence of the site beach; (2) setting a diversion dam at a position away from the discharging point by a certain distance, and effectively prolonging the settling time of fine particles under the buffering of the multiple diversion dams; and (3) adding a combined medicament to the tailings wastewater, controlling the pH value of the tailings wastewater after the combined medicament is added, and making the water quality of the tailings wastewater in the wastewater settling area clear after treatment, so that subsequent backwater utilization is realized. The segmental stacking method prolongs the settling time of the tailings, guarantees the water quality of the backwater utilization, reduces the wastewater treatment difficulty, and effectively reduces the wastewater treatment cost.

This application belongs to the technical field of engine test, and particularly relates to an anti-erosion device for test leads of a high-speed rotor with a discontinuous profile. The device includes a first metal foil (3) welded at the transition of two specimens; a second metal foil (4) which is crimped onto the first metal foil (3) by welding after the test lead is attached to the first metal foil (3); a third metal foil (7) welded at the bottom of the oil sump (13) and forming a through-hole for accommodating the test lead (5) with the bottom of the oil sump (13); a diversion dam (9) on the side of the third metal foil (7) facing the oil flow, with both ends of the diversion dam (9) fixed on the surface of the oil sump (13), and the middle part of the diversion dam bent upward to form an inclined plate which is inclined towards the third metal foil (7). This application solves the problem of reliable installation of test leads under the conditions of the discontinuous profile on the surface of a high-speed rotor and the erosion of the oil sump.

The utility model relates to power transmission engineering technical field especially relates to a flood control diversion dam of power transmission line tower foundation, it includes: first diversion component and second diversion component, the cross section of first diversion component is single concave arc curve quadrilateral with vertical side, the end surface of first diversion component has predetermined angle of clamping with the bottom edge of first diversion component, the end surface of first diversion component is provided with dovetail connecting groove, the cross section of second diversion component is same with the cross section of first diversion component, the end surface of second diversion component is provided with dovetail connecting convex, the end surface of second diversion component is pasted the end surface of first diversion component, and is limited through dovetail connecting structure, first diversion component is connected with second diversion component, and it is '' V '' type distribution. Adopt the utility model can solve the problem of the existing diversion dam upper part overflow and both sides around seepage, and can take the prefabricated component, and the on -the -spot splicing assembly mode is installed, and the construction is convenient.

The present invention belongs to the technical field of rainwater regulation and storage in sponge cities, and in particular, relates to a diversion system for an artificial regulation and storage lake in a sponge city, including an inlet area, an outlet area, a diversion dam, a water pump flow pusher and a submersible pump, wherein the inlet area and the outlet area are respectively arranged at the two ends of the artificial regulation and storage lake, and the establishment of the diversion dam makes the artificial regulation and storage lake S-shaped, and the water pump flow pusher and the submersible pump are respectively installed in the lake, and the cooperation of the two further promotes the circulation of the water body and adjusts the flow direction of the water body again. The beneficial effects of the present invention are that the water quality and landscape effects are improved, the original drainage pipes can be used normally, the new rainwater pipes are avoided, the cost is saved, and it has a wide application prospect in the sponge transformation of old urban areas.

The invention discloses a water-stone separation gallery for debris flow prevention and control, which comprises a drainage dam, a water-stone separation gallery and a drainage groove, and the water-stone separation gallery comprises a framework, a coarse-hole protective net and a side wall; a buffer filter layer is laid at the bottom of the drainage groove, and a fine hole protective net which is detachably installed on the side wall through a rivet structure is arranged above the buffer filter layer. The device has the functions that the device utilizes the characteristics of fluid, performs multi-stage filtration, screening and energy dissipation on water-soil and water-stone two-phase flow of debris flow through the whole water-stone separation gallery for preventing and treating debris flow, and controls starting of material sources from the source, so that the debris flow is converted into mud-sand water flow, the occurrence of the debris flow can be fundamentally avoided, and the service life of the debris flow is prolonged. Compared with the prior art, the control effect is remarkable, meanwhile, compared with the prior art, the construction cost is greatly reduced, and the gallery has sufficient pressure resistance, shear resistance and block stone impact resistance and can be guaranteed to have sufficient stability.

The utility model provides an ecological ditch of initial rainwater diversion purification, including the sedimentation unit, initial rainwater diversion unit and primary purification unit that are in series in proper order, the sedimentation unit includes the sedimentation area, and the upper portion of the side wall of sedimentation area is equipped with the water inlet of sedimentation area, and the bottom of sedimentation area is equipped with the sludge discharge mechanism, the initial rainwater diversion unit includes the diversion dam, and the diversion dam from bottom to top includes the sedimentation area limiting platform, filler filter area, rainwater discharge area and flood discharge area in proper order, and rainwater discharge area and flood discharge area are connected with rain flood discharge channel, the primary purification unit includes the primary treatment area, and the primary treatment area is communicated with the sedimentation area through filler filter area, and the water flow direction of primary treatment area is equipped with the water retaining wall of height not less than diversion dam, and the both sides of diversion dam are adjacent with sedimentation area and primary treatment area respectively, through the reasonable setting of structure, the effective diversion of initial rainwater and the efficient exclusion of middle and later period rainwater are realized, the retention time of initial rainwater in ecological ditch is prolonged, and the purification effect of the pollutants in rainwater is improved.

The invention discloses an original main river channel ecological protection integrated structure of an artificial canal, and relates to the technical field of hydraulic engineering, the original main river channel ecological protection integrated structure comprises a diversion dam, the diversion dam comprises a U-shaped dam, radial flow plates extend from the two sides of the U-shaped dam, and diversion plates are arranged on the radial flow plates; wherein the end, close to the U-shaped dam, of the flow guide plate is hinged to the radial flow plate, and a telescopic piece is arranged between the other end of the flow guide plate and the radial flow plate; and the driving assembly is connected with the telescopic piece. According to the river channel, part of water flow in the canal river channel or the branch river channel is introduced into the original main river channel, so that the water body flowing state in the original main river channel is kept throughout the year, an ecological conservation area is formed in the dry season, an inhabiting environment is provided for benthos and fishes, and a water source is provided for aquatic organisms on the bank and bank slope vegetation; the biological diversity of the upstream reach is kept, and in the flood season, the river channel can be used as a canal river channel to play a flood storage role.

The present invention provides a drainage device for a river water conservancy project, which belongs to the technical field of water conservancy drainage, including a river main channel, a grating plate installed inside the river main channel, a grit chamber assembly arranged at one end of the river main channel away from the grating plate, a speed regulating diversion component arranged between the grating plate and the grit chamber assembly, a liquid level sensor arranged between the grating plate and the speed regulating diversion component, a water storage tank assembly arranged outside the river main channel, the speed regulating diversion component including a diversion dam, a strip support plate assembly, a guide plate assembly, a diversion tube assembly and a jacking assembly; the two ends of the strip support plate assembly are respectively fixedly connected to the bottom plate and the diversion dam of the river main channel, the diversion tube assembly is located inside the diversion dam, the diversion tube assembly passes through the diversion dam and the river main channel and extends into the interior of the water storage tank assembly, and the jacking assembly is located on the top of the diversion dam and connected thereto. The present invention effectively solves the risk that the function of the grit chamber is weakened or even destroyed due to excessive water flow speed during river drainage.