42results about How to "Solve the problem of flooding" patented technology

The invention provides a process method for separating quartz sand, arkosic sand and iron powder from river yellow sand. The method mainly comprises the following process steps of (1), performing desliming, grading and sheet mica removing; (2), removing iron through magnetic separation and gravity separation; (3), removing an oxidized skin through alkaline wash; (4) performing acid neutralization and removing the iron; (5) separating the quartz sand from the arkosic sand through flotation separation; (6) removing the iron through water wash, the magnetic separation and the gravity separation; (7) removing variegated pellets through photoelectric separation; (8) recycling fine iron powder made of iron. The quartz sand produced by the process method is high in purity, wherein the content of SiO2 is 98.0-99.0%, and the content of Fe2O3 is 0.009-0.015%. The produced arkosic sand can serve as materials of ordinary glass and ordinary ceramics. Metallics obtained through the magnetic separation and the gravity separation can produce the fine iron powder with the grade larger than or equal to 66%. By means of the process method, yellow sand resources are fully utilized without any waste, and the whole production process does not discharge waste alkali and waste acid. Therefore, the process method is friendly to the environment.

An anti-flood drought-resisting siphon pipeline device belongs to the technical field of hydraulic engineering, which comprises a main pipeline formed by connecting a plurality of sub-pipelines in an end-to-end mode. The height of the sub-pipelines is higher than that of the sub-pipelines at the back. The front end of a first sub-pipeline extends into river water and is provided with a water level electronic control valve, and a water inlet is arranged at the highest position of the front end of the first sub-pipeline and provided with a water inlet valve. Main control valves are installed respectively at the rear portion of the first sub-pipeline, the front portions of other sub-pipelines and the rear portions of other sub-pipelines. At least one flow distribution pipeline communicated with the sub-pipelines connected with each other at the back of the first sub-pipeline extends into a dry land or a storage reservoir, and a flow distribution control valve is respectively installed on the flow distribution pipeline. At least one flow guide pipeline extending into the river water or depression water is respectively communicated with other sub-pipelines between the first sub-pipeline and a final sub-pipeline, and a flow guide control valve is installed on the flow guide pipeline. The anti-flood drought-resisting siphon pipeline device can prevent flood disaster and solve the problem of water shortage in arid areas, and is simple in structure, low in cost, convenient to construct and easy to build.

The invention relates to a winch sprinkling irrigation machine capable of realizing intelligent sprinkling irrigation according to soil humidity. A low-voltage motor connected with a gearbox through a chain wheel is arranged on a rack; a control power supply, a pressure sensing head, a system processing controller, a soil humidity sensor, an incremental encoder and an RFM75P RF (radio frequency) transmitting module are arranged on a nozzle vehicle; an RFM75P RF receiving module, a photoelectric rotary encoder, a control power supply, a system controller, a GSM short-message remote control receiving and transmitting module and an RF transmitting module are arranged on a main vehicle; a high-pressure water pump is also connected with a controller powered by a power supply, and the controller is also coupled with an RF receiving module. The winch sprinkling irrigation machine can automatically monitor the soil humidity and intelligently control the rotation speed of a winch of the sprinkling irrigation machine, so that a PE (polyethylene) pipe moves at a proper linear speed in accordance with the ground humidity, the sprinkle-irrigated ground has more uniform humidity, and besides, the machine has functions of remotely controlling start and stop of the sprinkling irrigation machine and intelligently controlling the operation of the high-pressure water pump.

The invention provides an automatic vehicle height adjustment method and system, a storage medium and a vehicle. The automatic vehicle height adjustment method comprises the steps of detecting whetherthe vehicle is in a parking state, obtaining a water level and detecting whether the distance between the water level and a vehicle body bottom is less than or equal to a set distance if the vehicleis in the parking state, and controlling a vehicle body height of the vehicle to increase by a set height if the distance between the water level and the vehicle body bottom is less than or equal to the set distance. The automatic vehicle height adjustment method and system, the storage medium and the vehicle achieve the purpose of protecting the vehicle.

The invention provides a loop detection method and device. The method is applied to a first leaf node, and the first leaf node is located in an Ethernet virtual private network (EVPN). The method comprises the following steps: the first leaf node receives a free ARP message sent by a two-layer network device through a local first port, wherein the free ARP message comprises an ARP header, and theARP header comprises a first IP address; the first leaf node judges whether the first IP address is the same as a second IP address of the first leaf node or not; if so, the first leaf node judges whether the first IP address is an EVPN distributed gateway address or not; and if so, the first leaf node sends loop alarm information.

The invention relates to a waterproof joint structure of a steel structure workshop. The waterproof joint structure comprises a flashing structure in the side span position. The flashing structure at least comprises angle covering plates provided with a flashing part and at least one fixed part. Lowest point water dropping levels extending downward are arranged on the flashing parts, the fixed parts are fixed to a wall body through a fixing mechanism. The positions, provided with gaps with a water seepage wall body, on the angle covering plates are bonded through sealing glue. According to the joint structure, the flashing problems of joints such as high and low spans and inner gutters are better solved, compared with a leakage-proof structure of the prior art, the waterproof joint structure is more reasonable and better in effect.

The invention relates to a semi-centralized air conditioning system controlling temperature and humidity independently. The semi-centralized air conditioning system comprises a concentrated cold and hot source arranged at a building equipment layer and energy distribution devices which are dispersedly arranged in houses of all the users, wherein the centralized cold and hot source is respectively connected with a main water delivery pipe and a main water return pipe which are arranged in a building water pipe well, a primary side of each energy distribution device is accordingly connected with the main water delivery pipe and the main water return pipe by virtue of a water delivery branch pipe and a water return branch pipe, and a secondary side of each energy distribution device is connected with a capillary tube system arranged in the house of the corresponding user. The semi-centralized air conditioning system provided by the invention has the advantages of simple structure, low cost, high safety and high energy efficiency ratio, can realize zone control and management, can achieve the aims of saving energy and reducing consumption and can meet individualized requirements of the users.

The embodiment of the invention provides a data communication method and network equipment. The method comprises the following steps: searching for an SAS list item which corresponds to a destination MAC address and a VLAN ID from an SAS database according to the destination MAC address and the VLAN ID of a message needing transmitting; if the SAS list item which corresponds to the destination MAC address and the VLAN ID is found out, traversing an RPR topological database to search for a destination site conforming to the SAS list item; and if the destination site conforming to the SAS list item is found out, transmitting the message to the destination site by a main MAC address. The data communication method and the network equipment provided by the embodiment can effectively solve the problem of probably flooding when RPR sites are communicated by a secondary MAC address so as to improve the bandwidth utilization.

The invention is applicable to the technical field of artificial river channels, and provides a river channel ecological protection slope and a construction method thereof. The river channel ecological protection slope comprises a slope, wherein hollow prefabricated parts are laid on the slope; through holes are formed in the side surfaces of the hollow prefabricated parts; the through holes of the two connected hollow prefabricated parts communicate with each other; the hollow prefabricated parts are filled with planting bases; and the planting bases comprise at least soil, ceramsite, biocharand plant fibers. According to the river channel ecological protection slope and the construction method thereof, the through holes are formed in the side surfaces of the hollow prefabricated parts,so that the through holes of the two connected hollow prefabricated parts communicate with each other, and the problem that plants are in a flood disaster due to water accumulation in the hollow prefabricated parts can be effectively solved; the hollow prefabricated parts are filled with the ceramsite, so that the air permeability of the soil can be effectively improved, and the growth level of the plants can be improved; and the planting bases are filled with the biochar and the plant fibers, so that pollutants which are flushed into a river channel by rainwater and surface runoff can be adsorbed, and the purification capacity of a water body can be effectively improved. By utilizing the river channel ecological protection slope and the construction method thereof, a river channel ecological system can be repaired and improved.

The invention discloses a waterproof case for a battery. The waterproof case comprises a case main body, an adapter plate and a case top cover, the edge of the side edge of the adapter plate is bent to form a waterproof groove with a U-shaped cross section; the adapter plate is mounted in the inner side of the case main body through screws, the outer wall of an outer side plate of the waterproof groove is tightly attached to the inner wall of the case main body, and the adapter plate is connected with the case main body to form a battery bin for placing a battery cell module in the case main body; the side edge of the case top cover is correspondingly inserted into the waterproof groove of the adapter plate, and the case top cover, the adapter plate and the case main body are locked through screws; and the waterproof groove is filled with a sealing glue solution, and the liquid level of the sealing glue solution is higher than the height of an outer side plate of the waterproof groove and lower than the height of an inner side plate of the waterproof groove. The number of screws which do not need to be assembled is small, assembling is easy and convenient, the material cost and the labor cost are saved, and the overall production cost is greatly reduced.

The invention provides a visible water storage system for a front door plate of a dryer. The visible water storage system for the front door plate of the dryer comprises a front door assembly, a transparent water storage kettle, a special-shaped water pipe assembly and a water pump assembly, wherein the front door assembly is arranged on a front panel of the dryer, the transparent water storage kettle is arranged on the front door assembly and used for containing water, the special-shaped water pipe assembly is used for delivering the water to the transparent water storage kettle, and the water pump assembly is used for providing water delivering driving force; the transparent water storage kettle is connected with the water pump assembly through the special-shaped water pipe assembly todeliver the water to enter the transparent water storage kettle for storage; the bottom of the water pump assembly is provided with a water absorbing hole, and the water absorbing hole extends into awater collecting tank on the bottom of a cold-hot circulating chamber; the front door assembly is rotatably connected with the front panel of the dryer through a hinge, the transparent water storage kettle is of a round flat kettle-shaped structure, a groove on the transparent water storage kettle cooperatively corresponds to a protrusion on the front door assembly, the outer end of the transparent water storage kettle is provided with a scale mark for indicating the water level, and the water level and the water quantity of the transparent water storage kettle can be seen through the outer transparent middle shell of the front door assembly in use.

The invention discloses an overflow device of a pump station circulation cooling water tank. The overflow device comprises an overflow pipe connected with the water tank, and a pipe-top elevation at the connection of the overflow pipe and the water tank is arranged below the normal level of the water tank; outgoing water from the overflow pipe flows through an upwardly bent vertical pipe into a water incoming front tank of a drainage pump station; the level elevation of the overflow pipe restores into the normal overflow level elevation through the vertical pipe. The overflow device of the water tank not only solves the problem of flooding possibly caused when a water incoming float valve of the water tank is damaged, even there is no need for setting a water collection pit, the water collection pit and a drainage pump are omitted, operation safety of the pump station is effectively guaranteed, construction and operation cost of the pump station is reduced.

The invention discloses a device for pumping drainage monitoring and alarming of an underground pump house. The device comprises a liquid level monitoring device, and a circuit overload monitoring device. The liquid level monitoring device comprises a floating ball, a support and an electric sensor, wherein the electric sensor is equipped with a relay coil, installed on the support to form high-level and low-level touch point switches, and electrically connected to the circuit overload monitoring device; and the support is installed on the floating ball. The circuit overload monitoring device comprises an electric control box, wherein a main loop and a control loop are installed inside the electric control box; and a first relay, a second relay and a contact device are disposed on the main loop and the control loop. A first contact point of the contact device is disposed in a power source circuit of a three-phase circuit; and a second contact point and a coil of the contact device are disposed in the main loop. The device disclosed by the invention can effectively solve the problem of accumulated water overflowing caused by monitoring lack of a liquid pumping device can be solved effectively and can enhance running control capability.

The invention belongs to the technical field of signal processing of a distributed optical fiber sensing system, and discloses a far-end disturbance feature extraction method of the distributed optical fiber sensing system, which comprises the following steps of: dividing distance dimension intervals of a signal Rayleigh scattering spectrum in an optical fiber channel, and establishing a corresponding dictionary learning model for each interval, learning and observing the original dictionary to form a polymorphic equivalent dictionary; based on the polymorphic equivalent dictionary, establishing a joint sparse representation model under the cascade of the polymorphic equivalent dictionary, and forming joint sparse representation of the multi-echo scattering spectrum; and constructing a joint optimization reconstruction algorithm based on the polymorphic cascade dictionary, and extracting far-end disturbance signal features. The problem that far-end interference signals in a distributed optical fiber sensing system are submerged due to inherent attenuation of the Rayleigh scattering spectrum can be solved. And the accuracy of disturbance signal feature extraction is greatly improved.

The invention provides a method and system for blocking control frame transmission in a relay transport protocol, and the method comprises the steps: when a source node rS sends a plurality of unicast messages to a destination node rD, the source node rS broadcasts an RTS control frame containing a predetermined transmission path and a forwarding hop count counter on RTS logic information; after receiving the RTS control frame, the path node rX in the network forwards the RTS control frame; after the destination node rD receives the RTS control frame, an arresting relay probe packet BEX is generated; after an intermediate node receives an arresting relay probe packet BEX data packet, the BEX is forwarded when a certain condition is met, and the node state of the intermediate node is marked as R; if the source node rS does not receive the blocking relay probe packet BEX, a conflict scheduling strategy is started, and the RTS control frame application is resent after random backoff for a period of time. The problem of blocking flooding in the relay network can be solved, the time slot distribution efficiency is improved, the network control information overhead is reduced, and the actual rate of a user is improved.