439 results about "Water erosion" patented technology

A method of preventing water erosion and hot corrosion in a combustor of a gas turbine engine, wherein water is injected into said combustor for NOx abatement, which involves the step of applying a dense vertically cracked thermal barrier coating to certain components thereof The dense vertically cracked thermal barrier coating has a porosity of less than approximately 8% and a tensile strength in the range of approximately 4-7 ksi. The dense vertically cracked thermal barrier coating is applied to such combustor components so as to produce a segmented ceramic structure having macrocracks formed therein which are oriented substantially perpendicular to an interface of the combustor component and the segmented ceramic structure.

The invention discloses a fine simulation test device and a fine simulation test method for slope water erosion. The fine simulation test device comprises an underframe provided with trundles and a test soil groove connected with the underframe, the test soil groove is arranged above the underframe, one end of the test soil groove is hinged to one end of the underframe, and a water tank matched with the test soil groove is arranged at the other end of the test soil groove. A hydraulic rod is arranged between the test soil groove and the underframe, an equalization pond is arranged between thetest soil groove and the water tank, the equalization pond is communicated with the water tank through a water conveying pipe, the water conveying pipe and a water pump are arranged on one side of the water tank, a water discharging pipe is communicated with the lower portion of the water tank, a three-dimensional laser scanner is arranged in front of the test soil groove, a railfall device is arranged right above the test soil groove, and a flow collecting opening connected with the test soil groove is arranged at the end of the test soil groove hinged to the underframe. The fine simulation test device and the fine simulation test method for the slope water erosion have the advantages of being capable of controlling slope soil bulk density, vegetation types and cover degree manually, simulating soil water erosion conditions under different site conditions, and studying influences and response theories of all factors on soil water erosion under different underlying surface conditions.

The invention belongs to the technical field of the chemical industry, and relates to grease and a preparation method thereof, in particular to anhydrous albany grease and the preparation method thereof. The anhydrous albany grease and the preparation method comprises the following components by weight: 82-90% of base oil, 1-4% of calcium hydroxide, 6-15% of fatty acid, 0.3-1% of antioxygen, 0.5-1.5% of rust inhibitor, and 0.5-3% of extreme pressure antiwear additive. The anhydrous albany grease and the preparation method have the benefits as follows: the grease is simple in preparation process and easy to control; and the prepared product has better water erosion resistance, favorable metal adhesivity and extreme pressure abrasion resistance, and can provide outstanding lubrication and abrasion resistance protection for wheel bearings and chassis.

The invention relates to the technical field of revetments and provides a construction method of a cast-in-site planting concrete revetment. The concrete revetment manufactured by utilizing the method has the advantages of high strength, good overall landscape effect, strong gradient adaptability, no water-body pollution, water erosion resistance, larger revetment self-weight, safety and reliability, and a water body can be effectively protected. The construction method comprises the following steps of 1, prefabricating acid nutrient soil; 2, arranging a side slope and pouring a concrete lattice frame; 3, pre-placing a nutrient layer; 4, laying inverted-filtering geotechnical cloth on the nutrient layer; 5, pouring planting concrete; 6 carrying out water-preserving, heat-preserving, fertilizer-preserving and alkalinity-reducing processing on the planting concrete; and 7, finally, uniformly spreading the seeds of greening grass and the nutrient soil onto the surface of the planting concrete to form a planting layer with the thickness of 1.8 to 2.2cm, and covering a non-woven fabric onto the surface of the planting layer for watering, moisture preservation and maintenance until the greening grass covers the whole green area.

The invention discloses a super-high early-strength grouting material for repairing a ballastless track structure of a high speed railway, which is prepared by the following steps of: sequentially adding water, polymer emulsion, a water reducing agent, a rheology accessory agent and an antifoaming agent; adding admixture, cement, an expansion agent, a coagulator and a retarder, and stirring and blending the materials at a high speed. The parts by weight of the ingredients are as follows: 100 parts of superfine cement, 50-150 parts of admixture, 25-50 parts of redispersible emulsion powder, 3-10 parts of polymer emulsion, 5-25 parts of expansion agent, 0.1-1.0 part of carboxylic acid water reducing agent, 0.1-10 parts of coagulator, 0.1-5 parts of retarder, 0.001-0.005 parts of rheology accessory agent, 0.001 part of polyether-siloxane copolymer antifoaming agent and 20-70 parts of water. The material disclosed by the invention has the advantages of low viscosity, super-high early-strength, low cost, fatigue resistance, aging resistance and water erosion resistance, and the like, so that the material can be used for repairing the concrete gaps of ballastless tracks of high speed railways, gaps of cement asphalt mortar filling layers, cracks and damages.

This invention relates to a rock cleavage shearing - seepage coupling test box, the characteristic lay in: box shell includes upper box and lower box, both fitting surface are flat. Inter of upper box and lower box have similar size flute, and two flute together form cavity that can hold rock test piece; Near upper end of left and right wall sheet of lower box have set up water entry and water exit; box shell executed by metal or alloy that has high compressive strength, good water erosion bearing quality. This invention can carry out rock cleavage shearing - seepage coupling test under high infiltration water pressure. because of the designing of sealing device, in the test process water current leakage will not occur when up and down cleavage test piece in conjunction with upper and lower box occurring relative shearing displacement, and still flowing according to predesigned path and mode, so strained condition more fit for nature, data more sincerity, conclusion can serve practical engineering better.

The invention relates to a turbine blade water erosion test device which simulates the blade water erosion caused by the high-speed impact of water drip in a low-pressure cylinder of the turbine through the impact between the high-speed rotating blade and the water drip. A DC motor is used as a prime motor, and the rotary speed is improved through a gear speeder to drive a turntable provided with a test blade to rotate; a vibrator drives a nozzle connected with the water drip to produce the water drip, and the water drip axially moves to impact with a test piece; in addition, the system has also a vacuum-pumping system and a drainage system in order to ensure the normal operation of the test. The test device can study the change relations of deformation action and crack growth condition of the turbine blade materials with various factors under the high-speed impact of liquid drip, and provides the basic test data for deeply knowing the impact mechanism of high-speed liquid and solid and the water erosion protection of the turbine blade.

The invention relates to a test device and a test method, which are used for researching the water erosion simulation of a slope channel system. The system comprises a bottom frame, and a slope runoff area and a channel runoff area which are connected with the bottom frame; one end of the bottom frame is connected with a travel wheel set, and the other end of the bottom frame is provided with a steering wheel set and a travel traction rod which is connected with the steering wheel set; the slope runoff area and the channel runoff area are both formed above the bottom frame; the end of the slope runoff area is hinged with the end of the channel runoff area; the other end of the channel runoff area is hinged with the travel wheel set end of the bottom frame; a channel lifting mechanism for controlling the channel runoff area to lift is arranged between the bottom frame and the channel runoff area; and a slope lifting mechanism for controlling the slope runoff area to lift is arranged between the bottom frame and the slope runoff area. The fine water erosion simulation test device has the advantages of manually tamping soil, transplanting plant, automatically adjusting the channel angles, freely moving the whole equipment, shortening a test period, and accurately simulating the water erosion process of soil under different site conditions.

The invention discloses a method for preventing water erosion desertification by using biological crust, which is to artificially inoculate a biological crust resource onto bare soil surface of a water erosion desertified area and cultivate the biological crust to allow the biological crust to cover the bear soil surface. The method comprises the following steps:1) selecting well developed natural biological crust, and shoving 10 to 30-millimeter-thick crust layer on surface for later use; 2) drying the collected biological crust in shade, removing other materials, crushing, fully stirring and uniformly mixing to obtain the biological crust resource; 3) mixing the prepared biological crust resource with fine soil according to a ratio of 1:(1-2), uniformly spreading the mixture on the soilsurface to be inoculated, covering a small amount of fine soil, and fully watering after the fine soil is covered; and 4) controlling a proper condition to promote the growth of the biological crust,namely watering, topdressing, killing pests and weeding. With the method of artificial inoculation and cultivation, a high-coverage biological crust can be formed in a short period, and the formed biological crust has obvious water and soil holding function; and the method is an effective method for treating water erosion desertification.

The invention relates to a water erosion experimental facility with the rotary impact of high-pressure water jet. The facility simulates the blade erosion caused by drops in a steam turbine through the collision between high-speed jet and a rotating test piece. The facility mainly comprises a motor and a motor control cabinet, a gear case, a rotor and a test piece, a high-pressure water pump and nozzle pipelines, etc. While the rotor and the test piece rotate at a high speed, the high-pressure water supplied by the high-pressure water pump can generate high-speed jet through the nozzle. And the jet hits the test piece at a speed of the vector difference between the jet and the test piece, so that hitting speed is greatly improved. Thus, the evaluation of the water erosion resistance of the steam turbine blade material within a short period on an experiment table becomes possible.

A turf protection utilization method is provided for turf protection utilization programming and planning, and comprises the following steps: delimiting a turf protection level according to nature vegetation types and coverage; delimiting a vegetation retrieval level according to rainfall, temperature and soil factors; carrying out field investigation to check two said levels; superposing and delimiting a plurality of ecology control sections; determining the turf excavating technology according to the vegetation types and coverage in each ecology control section; selecting three protection technologies according to road engineering construction progress and turf utilization time intervals, wherein the three technologies include piled stacking, layered stacking, and skeleton layered temporary planting; determining three planting modes according to wind erosion and water erosion characteristics and propagation coefficients, wherein the three planting modes include a chessboard type, a tic-tac-toe mode and a bar stripped mode. The method can scientifically unify turf protection and utilization planning, storage and utilization, thus providing best ecology benefits; the turf protection utilization method is practical in applications.

The invention discloses a farmland ecologic interception ditch adopting a slope protection technology and a construction method of the ditch. The cross section of the channel takes the shape of an inverted trapezoid, a ditch bottom is a prefabricated perforated plate, S-shaped holes are arranged in a staggered manner, and local perennial aquatic plants are planted in the holes; after being compacted, the soil bodies of ditch walls are paved with three-dimensional plant nets and covered with prefabricated perforated plates, a plurality of holes are in parallel and uniformly distributed at the middle upper parts of the perforated plates, wire grass is planted in the holes, and rye grass is replanted in the holes; a water inlet end is provided with a grating, and a water outflow end is provided with a controllable emptying gate. Through the reasonable arrangement of the plant planting holes and the anchoring action of root systems and the plant cover nets, the structural stability of the ditch is achieved. The ecologic interception ditch provided by the invention has the advantages that the structure is stable, the structural stability can approximately reach the structural strength of a concrete ditch built in facility grainfield, water erosion of farmland drainage can be resisted effectively, and meanwhile suspended matters, nitrogen, phosphorus and the like in drain water of farmland, particularly dry land, are effectively intercepted; no cultivated land is occupied, the construction cost is low, the operation is simple, and suitability for large-scale popularization and application is achieved.

The invention discloses a method for preparing a lignosulfonate graft copolymer chemical sand fixing agent. In the method, neutral papermaking waste liquid is evaporated and condensed; lignosulfonate in the neutral papermaking waste liquid is extracted; an aldehyde compound and an unsaturated acylamide, unsaturated acid or unsaturated ester compound are respectively or simultaneously used as reaction compositions; and the lignosulfonate is subjected to chemical modification to synthesize the serial lignosulfonate graft copolymer chemical sand fixing agent. The method has no environmental pollution, good water solubility, strong capacity for water erosion resistance and high compressive strength performance.

The invention discloses a bioremediation method for arsenic-containing tailings or waste residue. An arsenic-containing tailings dam and a waste residue pile are subjected to quick on-site remediation by artificially transplanted pteris vittata and Chinese silvergrass. The tailings dam and the waste residue pile are flattened, and bulkhead dams and gutters are established; the pteris vittata and Chinese silvergrass are transplanted to the tailings dam and the waste residue pile; in the next year, the tailings dam and the waste residue pile grow normally; and after 2 to 3 years, a stable pteris vittata-Chinese silvergrass dominant plant community can be formed, and 10 kinds of arsenic-resistant plants are naturally settled simultaneously. After the vegetation of the tailings dam and the waste residue pile is recovered, the wind erosion and water erosion are eliminated, and the arsenic content in storm dripping and filtration water of the tailings dam and the waste residue pile is reduced from 5mg / L before remediation to 100 mu g / L.

Here presented is information pertaining to water erosion management incorporating topography, soil type, and weather statistics. Also presented is a manner of exchanging water allocation credits. A method of dealing with crop treatment compatibility and a system of estimating crop characteristics are also set forth. Finally, a manner for wide-area agricultural monitoring and prediction is discussed.

The present invention discloses a modified bitumen waterproof coiled material, a coating material and a preparation method thereof. The raw materials in the formula of the coating material comprise, by mass, 40-55% of bitumen, 10-15% of a machine oil, 10-18% of an SBS synthesis rubber, 2-8% of polypropylene, 5-20% of glue powder, 5-15% of a filler, and 4-10% of a regenerated resin, wherein the regenerated resin is the regenerated resin of a bisphenol A type epoxy resin, the epoxy equivalent weight of the bisphenol A type epoxy resin is 182-244 g / eq, and the particle size of the regenerated resin is 80-100 mesh. According to the present invention, the coating material production cost of the present invention is reduced by 3-8% compared with the coating material production cost in the prior art, problems of high temperature flowing, poor low temperature toughness, brittleness, cracking and the like are solved, and characteristics of excellent water resistance, no water absorption, no performance degeneration under long-term water erosion, excellent adhesion, and firm and durable binding with the base layer are provided.

The invention relates to the field of ecological engineering and in particular relates to a method for rapidly planting vegetation in saline-alkali bare land. The method comprises the steps of harrowing, building a furrow, taking aeolian sandy soil or farmland soil, mixing the aeolian sandy soil with saline-alkali soil, then mixing with seeds of perennial plants, dibbling the seeds into the furrow, and then covering, and finally carrying out pulled-type rolling. The method disclosed by the invention provides a safe site for seed germination, seedling settlement, growth and propagation of the perennial plants, and the perennial plants can quickly grow on the saline-alkali bare land in salinized and alkalized grassland. Thus, the method disclosed by the invention can rapidly increase covering power of vegetation on the grassland, reduce harm of wind erosion and water erosion in the saline-alkali bare land to adjacent grassland and farmland and protect and improve ecological environment; meanwhile, a large area of saline-alkali bare land can be utilized, high-quality forage grass is provided for development of animal husbandry, and higher ecological, economic and social benefits are produced. The method disclosed by the invention has the advantages that operation is easy, efficiency is high, cost is low, is sustainable and easy to popularize, and the like.

The invention relates to an inertial differential unlocking spring impact type collector of a bottom sediment sample. The inertial differential unlocking spring impact type collector comprises an outer frame device, a nozzle sampling device, a spring impact device and an inertial differential unlocking device. According to the inertial differential unlocking spring impact type collector, the structural design of a chained inertial differential unlocking-spring impact device is utilized, so as to realize the purpose of collecting the bottom sediment sample in the condition of no extraneous source power, and on the basis of an elastic principle, the bottom sediment sample can be instantaneously collected, so as to avoid water erosion. According to the inertial differential unlocking spring impact type collector, the problem that an existing underwater sampling device has difficulty in considering the sampling representativeness and the adaptability to different bottom sediment samples on the basis that destructive sampling is reduced as far as possible can be solved. The inertial differential unlocking spring impact type collector can adapt to different water depth and current conditions and has the advantages of strong reliability and simplicity and convenience in maintenance; if the inertial differential unlocking spring impact type collector can be made into an array and is integrated with automatic lifting machinery, the purpose of quickly collecting bottom sediment samples in different positions with high throughput can be realized.

A composite material for ecological construction consists of organic polymer, organic biological active material, organic refuse, nutrients for plant growth and slow-release and soil conditioning material. It can be used in semiarid region and desertification soil. It can improve plant growth environment, resist wind and water erosion. It is also cheap and non-toxic.

The invention discloses a composite material for eco-environment construction of plants. The composite material is formed by compounding organic polymers, organic bioactive materials, organic wastes, nutrient elements needed for plant growth, controlled-release and soil-conditioning materials and the like. The composite material can be applied into soil by soil blending or an aqueous solution, has multiple efficacies of supplying nutritions, slowly releasing and balancing nutrition constituents, improving physicochemical properties of soil, holding moisture and resisting draught, restricting salinization or alkalinization, resisting wind erosion and water erosion and the like, achieves dual functions of improving plant growth environments and increasing plant survivability and is particularly suitable for eco-environment construction of plants and husbandry production in western loess semi-aired areas, high-salinization and high-alkalization desertification soil and other loose-structure soil areas in China. The composite material disclosed by the invention has the advantages of optimized functional compounding, no toxicity and harms, low cost, quick effect taking, simpleness and convenience for construction and capabilities of effectively improving desertification soil, providing favorable water and soil conditions for plant growth and improving quality and efficiency of eco-environment engineering construction.

A water and soil conservation and ecological restoration method of high and steep, abandoned slag piles at high elevation with large temperature differential in xerothermic drought valleys, comprises: preparing a mixed material; collecting and cutting a plant to obtain a plant ingredient; preparing a treated material; digging tree holes; planting; spreading the treated material, and watering. The water and soil conservation method adds gelling material for cover soil, and stirs to allow fine particles in the cover soil to be uniformly coated on the coarse particles to realize coherence, thus effectively avoiding water erosion and wind erosion on the loose cover soil on a slope and slag pile, reducing the cover soil falling into gaps of large slag pieces on the slope surface, thus controlling the water and cover soil conservation of a slag pile, and the scale of fill earth, and ensuring the survival rate and preservation rate of planted trees.

The invention belongs to the laser cladding field, relates to a preparation method for a water erosion resistant coating of a last-stage long blade, and particularly relates to a method for preparing a water erosion resistant coating of a last-stage long blade of a large nuclear turbine. The preparation method for the water erosion resistant coating of the last-stage long blade comprises the following steps of drying alloy powder, clamping a blade on a platform with the blade in a horizontal position; selecting a semiconductor laser; adjusting by a coaxially focused powder feeding system; setting the size of a molten pool; and cladding the water erosion resistant coating by the laser. The preparation method can be used in preparing the water erosion resistant coating of the last-stage long blade of the large nuclear turbine. The hardness distribution of a cladding layer is uniform with an up-down deviation within 10% and the hardness of 500 HV; the thermal impact performance and water erosion resistance of the cladding layer are excellent; the deformation of the last-stage long blade after the laser cladding is small; and profile tolerance meets the processing and manufacturing technological requirements of the long blades by nuclear power.

The invention relates to a phytoremediation technology for soil contaminated by heavy metal, in particular to a method for remediating soil contaminated by cadmium through the heavy metal enriching plant of dandelion. The method for remediating the soil contaminated by heavy metal through the heavy metal enriching plant of dandelion comprises the following steps: dandelion is implanted in the soil containing the cadmium pollutant; a great amount of cadmium in the contaminated oil is absorbed by the root system of dandelion and is transferred to the organs of the above-ground part of dandelion; and the plant grows to have the above-ground part with maximal biomass, the organs of the above-ground part of the plant are removed from the contaminated soil, thereby realizing the aim of removing the cadmium pollutant in the soil. The technology controls the soil contaminated by cadmium through the heavy metal enriching plant of dandelion, and has the advantages of low cost, strong operability, no damage on the physicochemical property of the soil, no induction of secondary pollution, good effects on preventing the wind and water erosion of the contaminated soil, and the like.

The invention relates to a basin-scale water-erosion fine simulation simulation test method which is used to systematically research soil erosion process and mechanism of a small-basin different-landform unit. According to the method, especially, different landforms can be constructed according to test requirements, soil with different particle sizes is used to fill the landforms, the soil bulk density of different-landform positions of the basin is artificially controlled, water-soil conservation measures are laid on different-landform positions (the upper part of a slope surface, the lower part of a slope surface, ditches and the like) of the basin, different rainfall intensity and rainfall processes are controlled, the hydrodynamics characteristics of a water flow at different-landform positions are observed, so that precise simulation of a water and soil loss process of the basin under different site conditions and different rainfall conditions is realized, and influence and response mechanism of various factors on the soil water-erosion process under different underlying surface conditions are researched.

The invention discloses a water erosion test device which comprises a high-voltage pulse water jet device and a workpiece clamping table; the high-voltage pulse water jet device comprises a water tank and a water pumping device, wherein the water pumping device is connected with the water tank, a water outlet pipe of the water pumping device is connected with a water return pipe and a jet pipe, a pressure gauge and a nozzle are installed on the jet pipe, the water return pipe is connected with the water tank, and a pressure relief valve is arranged on the water return pipe; the nozzle is arranged above the workpiece clamping table; and the water erosion test device also comprises a control plate, and the control plate is connected with the water pumping device, the pressure gauge and the pressure relief valve of the high-voltage pulse water jet device and a motor and a hoisting device of the workpiece clamping table through leads. Compared with the prior art, the device has the advantages that the equipment structure is simple, and meanwhile, the water erosion test process also can be accurately simulated, the test cost is greatly lowered, and the device is easy to control and has short test time.

The invention provides a technology for preparing nano microcrystalline enamels, which comprises the following technical steps: melting at high temperature, preparing enamel powders or glaze slurry, and firing the enamels and carrying out in-situ crystallization; and based on common porcelain enamels, introducing a devitrification factor during the preparation of enamel frits by scientific and reasonable composition design so as to the porcelain enamel has the capacity of even and fast devitrification at appropriate temperature. Because the melt and other processing properties for the enamels are slightly influenced, the enamel firing technology system is slightly modified, thus being capable of obviously improving the capacities of the enamels in acid-base resistance, corrosion resistance and hot water erosion resistance. For the nano microcrystalline enamels prepared by the technology which can produce nano microcrystals in situ in a porcelain enamel layer, the acid-base resistance and the corrosion resistance can be more than double and the hot water erosion resistance can be improved by about five folds. The enamels in the invention can be used as lining materials of chemical reaction vessels and liner materials of water heaters and has preferably popularization and application prospects.

The invention relates to a water erosion characteristic testing device and method for geotextile slope protection. The device comprises a reservoir and an inclined water tank, wherein a submersible pump is arranged in the reservoir; a nonporous baffle plate, a large-hole baffle plate and a small-hole baffle plate are sequentially arranged at the top end of the water tank from top to bottom in the height direction, and multiple holes are formed in the large-hole baffle plate and the small-hole baffle plate; the large-hole baffle plate, the small-hole baffle plate, the nonporous baffle plate and the sidewall of the water tank enclose a flow stabilizing tank which is communicated with a water outlet of the submersible pump. According to the water erosion characteristic testing device for geotextile slope protection, a practical engineering condition is simulated through a model, and analysis on an action mechanism and failure signature of a geotextile in slope protection engineering and study on the interaction relation of influencing factors are made from an erosion process to guide future slope protection and optimization of a slope design.

The invention provides a light reinforced composite floating plate for preventing the water level from evaporating. The light reinforced composite floating plate for preventing the water level from evaporating comprises the following steps of: clipping a bidirectional plastic geogrid of 25-50KN into meshes with equal size, and adding benzene particles into cement mud, wherein the volume of benzene particles per cubic is 0.845-0.850m<3>; prefabricating method: pouring benzene particle mixed materials into a mold, filling to 1-2cm, compacting, then laying geogrid meshes at the lower layer, adding benzene particle mixed materials, filling to 5-9cm, compacting, laying geogrid meshes at the upper layer, then adding benzene particle mixed materials to 1-2cm, and compacting, thereby obtaining a mixed condensed plate, then demolding, brushing mud, bonding carbon fiber cloth, wrapping, and sealing, thereby preparing a stormy-wave-resistant, collision-resistant, seepage-resistant, ultraviolet-resistant, antifreezing and water-erosion-resistant performance light reinforced composite floating plate. When the plate is used, the plate is laid freely according the water area, and is not required to be connected and fixed.

The invention discloses a remote real-time monitoring system for soil runoff, belonging to the field of agricultural science. The system comprises a manual simulation rainfall device, a test stand device and a test device, wherein the manual simulation rainfall device comprises a water tank, a safety valve, a constant-pressure pump, a one-way valve, an electromagnetic valve, a flowmeter, a lifting rack and a spray nozzle; the test stand device comprises a table-type test stand, a soil bearing device, a guide hopper, a water container and a filter screen; and the test device comprises a test system and the like. The system disclosed by the invention can conveniently perform monitoring on the rainfall runoff process as well as research on the water erosion mechanism under different gradients, different earth surface conditions and different soil underlying surface conditions, and can realize remote online monitoring on the dynamic phenomenon of soil runoff.

The invention relates to an intelligent waterproof communication crate. The intelligent waterproof communication crate comprises a communication crate body (1), a power module (2), a controlling module (3), a water sensor (4) and at least one electronic control supporting expansion pole (5), wherein the water sensor (4) is arranged on the lower surface of the communication crate body (1); the electronic control supporting expansion poles (5) are arranged below the communication crate body (1). According to the invention, the water sensor (4) is used for detecting whether the downside of the communication crate body (1) is submerged or not, which is regarded as a triggering signal, and the electronic control supporting expansion poles (5) are adopted to work, so that the communication crate body (1) is lifted to prevent communication equipment inside the communication crate body (1) from water erosion and damaging the communication equipment, and the communicant equipment can be effectively guaranteed to work.