82results about How to "Avoid draining" patented technology

The invention relates to a process for preparing freezing resistance type deicing agent, which belongs to the deicing agent field, the technical proposal is that the process adopts the existing soluble salt deicing agent to prepare. The process for preparation comprises the following steps: firstly, adopting zeolite, bergmeal, meerschaum and other particles to load soluble salt deicing agent to prepare into saturated solution under the temperature which is 20-100 DEG C, secondly, adding inorganic non-metal porous material whose particle diameter is 10 order to 80 order into the saturated solution to immerse for 15min-45min, thirdly, filtering and drying the solution, and finally, drying inorganic non-metal porous material in 105 DEG C to 120 DEG C to be constant weight. In order to prepare freezing resistance type deicing agent which is suitable for different ice and snow weather, the step two and the step four are repeated, namely the whole process of immersing, leaching solution and drying for 1-10 times. The invention provides a deicing agent which can save energy and protect environment, which feasibly solves the shortcoming that deicing effect in the existing utilization mode is transient, the deicing agent can effectively accelerate the disintegration of ice layer, and can reduce the resistance force in the process of manually and mechanically breaking ice and removing snow.

The invention relates to a solar pumping irrigation system. The solar pumping irrigation system is characterized by comprising a solar panel array, a control cabinet, a vanadium battery pack, an inverter, a soft starter, a solar pumping inverter, a control device, a high-lift water pump, an impounding reservoir, and a sprinkler plant, wherein the solar panel array is connected with the solar pumping inverter, a change-over switch and the high-lift water pump in series; meanwhile, the solar panel array is connected with the control cabinet, the vanadium battery pack, the inverter, the starter, the change-over switch and the high-lift water pump in series; the high-lift water pump is connected to a mountain reservoir through an upper water pipe and a check valve, and then connected with a sprinkler gun through a lower water pipe. The solar pumping irrigation system is suitable for being popularized and applied to villages in remote and mountain areas and power shortage areas.

The invention relates to a utensil for filtering oil in soup. The invention adopts the technical scheme as follows: the utensil comprises a pot cover, an outer pot and an inner pot, wherein an accommodating cavity for accommodating the inner pot is formed in the outer pot; an oil filtering hole is formed in the bottom of the inner pot; a water level limiting guide post stretching upwardly is arranged on the hole edge of the oil filtering hole; a filter core in contact connection with the inner pot sleeves the water level limiting guide post; a flow guiding passage is arranged at a junction of the filter core and the inner pot; the upper surface of the flow guiding passage is lower than that of the water level limiting guide post. The invention achieves the purpose by providing the utensil for filtering the oil in the soup, which rapidly separates soup from oil and food materials in the inner pot through the filter core, can achieve convenient cleaning of the inner pot through the detachable filter core, and is stable and simple in structure and safe and convenient to use.

The invention belongs to a method and system for self-cleaning water-saving type comprehensive vehicle washing for a civil construction site. The method comprises the steps of foundation ditch precipitation well and drainage ditch system construction, cofferdam pool construction, construction of a wheel washing machine base, a water storage pool, a wheel washing pool, a filtering pool and a settling pool and the like. The system comprises the wheel washing pool used for conducting primary cleaning on tires of a muck vehicle and sludge on a vehicle body, the wheel washing machine base, a wheel washing machine, a foundation ditch precipitation well, a foundation ditch drainage ditch, a cofferdam pool, the water storage pool, the filtering pool and the settling pool. The method and system for self-cleaning water-saving type comprehensive vehicle washing for the civil construction site have the advantages that the method and structure are novel and simple, the vehicle washing efficiency is high, the vehicle washing effect is good, and environment beautifying, energy conservation, environment protection and water recovery circulation utilization are good.

The invention relates to a gradient grinding type HP (High Power) type coal mill. Abrasion-resistant alloy is surfaced on the outer surface of a roll sleeve of a grinding roll to form a roll tire type grinding roll with a cross section which is of a semi-arc structure, the abrasion-resistant alloy is surfaced on the surface of the inner side of a lining plate to form an arc structure which is inwards concave and adapts to the roll tire type grinding roll in shape, the surface of the outer side of the lining plate is connected with a grinding bowl through a flat key, the small end of the lining plate is compacted with a grinding bowl hub through a grinding bowl clamping ring, a grinding bowl extending baffle ring is fixed on the grinding bowl hub and positioned at the large end of the lining plate, and a gap is arranged between the inner wall of the grinding bowl extending baffle ring and the large end of the lining plate. According to the scheme, hard coal can be prevented from being discharged as coal gangue, the discharging mount of the coal gangue is reduced, and the working efficiency of ground coal is increased.

The invention relates to an automatic water draining valve for locomotives, which is a water draining and pollution discharging device for railway locomotives and is composed of two parts such as a water draining valve and a heating rod; the automatic water draining valve is a water draining valve characterized by high capacity and two-stage action mode; the automatic water draining valve is driven by compressed air in a pipeline as control air source when an air compressor is unloaded; water drainage and pollution discharge are carried out by the control air source; the automatic water draining valve is provided with a flange-shaped mounting bracket and is mounted on the bottom part of an air cylinder conveniently or is mounted on the bottom part of an air filter; a temperature-controlled heating rod is arranged; and a heating valve body is started automatically below 4 degrees centigrade so as to prevent condensed water in the water draining valve from being frozen at low temperature environment. According to the invention, the automatic water draining valve aims to discharge pollutant liquid such as condensed water, oil and the like out of a locomotive air cylinder or the air filter; in addition, the automatic water draining valve is an important component for purifying compressed air or ensuring compressed air to be dried in air pipelines systems on the railway locomotives, internal combustion locomotives, urban rail vehicle and subways.

The invention discloses a gas water heater and a control method thereof. The gas water heater comprises a shell, a heat exchange device, a liquid storage tank and a control device. The shell is provided with a raw water inlet and a hot water outlet. The heat exchange device is arranged in the shell and provided with a heat exchange water inlet and a heat exchange water outlet, and the heat exchange water inlet is connected with the raw water inlet. The liquid storage tank is arranged in the shell and provided with a liquid storage water inlet and a liquid storage water outlet. The liquid storage water inlet is connected with the heat exchange water outlet. The liquid storage water outlet is connected with the hot water outlet. The control device is arranged in the shell so as to control the heat exchange device. According to the gas water heater, the temperature of hot water flowing out of the hot water outlet can be stable, the phenomenon of sudden hot and cold is avoided, and the comfort level of a user is improved.

The invention provides a dip-mode etching device and a dip-mode etching method. The dip-mode etching device includes a bearing platform, a sensor, and an etching groove. The etching groove is providedwith a plurality of liquid inlets and a plurality of liquid outlets at the lower and upper ends respectively. Etching solution is constantly transferred via the liquid inlets, and excessive etching solution is constantly discharged via the liquid outlets, so that there is always etching solution in the etching groove, and the etching solution in the etching groove is always fresh. There is no need to store and discharge etching solution again for each substrate, and the etching efficiency is improved. As the liquid outlets are arranged at the upper end of the etching groove to constantly discharge excessive etching solution, the formation of product Mura due to quick opening of the shutter during liquid discharge of the existing etching device is avoided. In addition, the sensor for judging the end point of etching is set, and compared with observation through eyes, the end point of etching can be judged more accurately, and the best product parameter specification can be obtained.

The invention discloses a preparing method of a pollution-free fertilizer special for macadamia. The preparing method comprises the following steps that firstly, a first mixed material is prepared with crop straw as the main raw material; secondly, waste cob bricks are taken and smashed and then mixed with fruit shell yeast, a second mixed material is obtained, the first mixed material and bentonite are mixed to obtain a third mixed material, and loess mud, river sand and molasses fermentation liquor are mixed to obtain a fourth mixed material; thirdly, the fourth mixed material, the third mixed material and the second mixed material are flatly laid in a cultivation trough from bottom to top in sequence, and green manure grass seeds are sown; fourthly, grass cutting, stirring and fermentation are carried out, and fermentation fertilizer is obtained; fifthly, the fermentation fertilizer is mixed with bamboo shoot peel and auxiliary materials, and the pollution-free fertilizer special for macadamia is obtained. The raw materials used in the method are environment-friendly substances in natural ecology, waste in life is recycled and turned into treasure, the cost of the raw materials is reduced, and the pollution-free fertilizer special for macadamia has the advantages of being nontoxic, free of pollution and nuisanceless.

A coupling valve structure 26 is provided for a fuel supply module 20. The module has a fuel pump 20 disposed in a fuel reservoir 18, a feed line 21 in fluid communication with an outlet of the fuel pump for feeding fuel to a high pressure pump 16 and thus to an engine, and a return line 22 for retuning excess fuel from the engine or high pressure fuel pump to the reservoir 18. The coupling valve structure 26 includes a check valve 28 constructed and arranged to communicate with the feed line to permit fuel to be delivered to the engine and to prevent the fuel from draining back to the fuel pump, and a pressure relief valve 30 integrally connected with the check valve via a conduit 23. The pressure relief valve 30 is constructed and arranged to communicate with the return line such that when pressure of the fuel at the check valve 28 is outside a certain pressure range, the pressure relief valve will open to permit fuel in the conduit to enter the return line to thereby maintain fuel exiting the check valve within the certain pressure range.

The invention provides a chromatography device including a chromatography tank and an eluent storage tank; the chromatography tank is composed of a chromatography tank body, an upper sealing cover and a lower sealing cover; the lower sealing cover is provided with a liquid outlet; the upper sealing cover is provided with an air inlet and a liquid inlet; a liquid distributor is arranged between the upper sealing cover and the chromatography tank body; a sieve plate is arranged between the chromatography tank body and the lower sealing cover; a flow pump is arranged between the chromatography tank and the eluent storage tank; the chromatography tank body is provided with a liquid level sensor and a pressure sensor; the liquid level sensor and the flow pump are connected through a wire; the pressure sensor and a compression air pump are connected through a wire. The chromatography device realizes an operation of adding an eluent without stopping working under a pressurization condition, also can constantly monitor and control the height of the eluent, and prevents the eluent from being drained off in the chromatography tank. The device is simple and is easy to operate.

The invention discloses a geological disaster control system. The geological disaster control system comprises a slope crest and side slopes; the slope crest is arranged above the side slopes and provided with batteries, vertical rods, retaining dams and a plurality of water tanks; the vertical rods are provided with solar panels; the batteries are provided with controllers; a water outlet pipe isarranged on the front side of each water tank and provided with an electromagnetic control valve C; water via holes A are formed in the water outlet pipes; water via holes B are formed in the two sides of the water via holes A; the back of each water via hole B is provided with a fence net A; rubber baffles are arranged in the water via holes B; the side slopes are provided with stabilizing dams;water storage dams are arranged between the stabilizing dams; diversion pipes are arranged at the water via holes B and the front sides of the water storage dams and provided with electromagnetic control valves B; an irrigation pipe is arranged on the side of each diversion pipe and provided with an electromagnetic control valve B and a water outlet; planting devices are arranged below the wateroutlets; fence nets B are arranged on the two sides of the diversion pipes; stand columns are arranged below the stabilizing dams and provided with reinforcing rods; and protective nets are arranged between the stand columns. By means of the geological disaster control system, water of irrigated plants is prevented from being lost too fast, the run-off speed is decreased, and the water absorptioncapacity of soil and the anti-scouring capacity of the slope surface are improved.

The invention discloses an automatic drainage device which is arranged on the lower portion of a centrifugal barrel body and distributed symmetrically with respect to a center axis. The automatic drainage device comprises a shell with a cavity. A floater is mounted in the shell. A balance spring is arranged between the top end of the floater and the top end of the shell, and the top end of the floater and the top end of the shell are connected through the balance spring. An end cover is arranged at the lower end of the inside of the shell and is mounted at the bottom of the shell through a fastening clamp spring. A water outlet is formed in the end cover. The bottom of the floater and the end cover are matched in structure. An abutting block matched with the water outlet is arranged at the lower end of the bottom of the floater. An appropriate gap is opened for water drainage operation through the floater according to the water volume under the pressure of water and the effect of the balance spring, water in a centrifugal barrel is automatically and continuously drained under the condition of non-stop operation, the airtightness of a centrifugal field is guaranteed, and separation of pollutants and oil liquid in the centrifugal field is not affected; and the displacement can be automatically determined according to the separated water volume, and water is drained in time.

The invention discloses a secondary utilization device after sanitary sewage treatment. The secondary utilization device includes a machine body. An empty groove is formed in the machine body, and thebottom wall of the empty groove is provided with a large sliding groove. The bottom wall of the large sliding groove is provided with a gathering pipeline and a flow separating tube. A flow separating device is arranged among the large sliding groove, the empty groove, and the gathering pipeline. When sewage flows into a water tank from a rigid pipe, a flexible pipe, and a flow separating groove,a filter screen can cut off waste, and water in the water tank can drive a short electric wire to move up. According to the secondary utilization device, a drainage pipeline at home can be connectedto a device, the waste is separated from dirty water through the filter screen, the dirty water can be gathered, and when a toilet requires to be cleaned, the gathered dirty water can be used to flushto obtain secondary utilization of water resources, which is in line with the green living principle advocated by our country, and also in line with Chinese virtues of diligence and thrift.

The invention discloses a sterilizing and precipitating system for water treatment. The sterilizing and precipitating system for water treatment comprises a aeration tower and a precipitation tower, wherein the water outlet end of the aeration tower is communicated with the water inlet end of the precipitation tower through a water outlet and suction pipe; a water suction pump is arranged on the water outlet and suction pipe; the water suction pump can suck aerated water in the aeration tower into the precipitation tower. The sterilizing and precipitating system for water treatment adopts a precipitate passage structure, so that discharge of excessive clean water along with a precipitate is effectively avoided; meanwhile, under the rotational agitation of auger blades in an aeration device, an air bubble group violently rolls in a column passage, so that the contact area between bubbles and a water flow is increased, the fluidity is improved, and thus the dissolution efficiency is improved.

The invention discloses a method for coal slime combustion of a circulating fluidized bed boiler. A cellular coal slime pipe orifice is designed to split a stream of coal slime into a plurality of streams, and is positioned below an outlet of a hearth and in the upper part of the hearth in a height direction, the coal slime is horizontally thrown by a reciprocating mechanism leaning against a coal slime pipe section after entering the hearth of the boiler, a layer of upper primary air is arranged on the upper part of the hearth, the thickness of a material layer is properly regulated and controlled to be 450mm to 550mm during the running of the boiler, the volumes of primary air and secondary air are properly regulated and controlled to ensure that the oxygen content of flue gas is 2 to 3 percent, and the negative pressure of the flue gas at the outlet of the hearth is regulated and controlled to be 0 to 50Pa. The method has the advantages that the coal slime flow is prevented from getting close to the outlet of the hearth and a screen type heated surface, the point of fall of the coal slime flow is prevented from being close to a deslagging hole, the concepts of low air volume, low oxygen content, low hearth outlet negative pressure, proper material layer thickness and the like are used for guiding running and regulation, and the operation method is innovative.

The invention relates to a special fertilizer for walnut cultivation. The special fertilizer is developed according to the nutrient status of soil in a walnut orchard under oasis irrigation conditions and the characteristics of fertilizer needs of walnut; and the effective components of the special fertilizer comprise an inorganic fertilizer containing elemental nitrogen, elemental phosphorus and elemental potassium and an organic fertilizer composed of cottonseed oil residue. According to the invention, the organic fertilizer and the inorganic fertilizer are integrated into one; and when applied to the walnut orchard, the special fertilizer can fully satisfy demands of the walnut for a plurality of nutrient elements, activate plant growth genes, promote normal growth and development of the walnut, effectively improve physical and chemical properties of the soil, eliminate soil hardening and enhance stress resistance of the walnut, thereby improving the utilization rate of the fertilizer, increasing a fruit-setting ratio, improving fruit quality and facilitating production of pollution-free green fruit.

The invention discloses a kitchen garbage processor with an anti-blocking effect. The kitchen garbage processor comprises a top cover, a second box body, an electric water inlet valve, a bearing frameand a hydraulic cylinder, wherein a charge funnel is arranged on the top cover in a penetrating mode; the top cover and the second box body are separately fixed at upper and lower sides of the firstbox body through first bolts; the inner side of the first box body is fixedly equipped with a transverse plate, and the lower side of the transverse plate is equipped with a ring-shaped pipeline; a filter plate is arranged in a through hole; the bearing frame is fixedly arranged at the lower side of the bearing plate through a second bolt; a strut is fixedly arranged on a motor shaft through a double-ended bolt; the front side of the first box body is embedded with a transparent plate; the hydraulic cylinder is fixedly arranged in the left side wall of the second box body through a third bolt;and the right side of the second box body is equipped with a discharge pipeline in a penetrating mode. According to the kitchen garbage processor with the anti-blocking effect disclosed by the invention, while part of impurities are stacked on the inner bottom of the second box body, and cannot flow out along with water flow, a pushing plate can move rightwards under action of the hydraulic cylinder and a hydraulic rod to push the impurities out of the second box body.

The invention discloses a waste heat recovery device for coating environment-friendly mechanical equipment. The device structurally comprises a body, a box door, a control button and a fan, wherein the front end of the body is provided with the box door, the control button is located at the upper end of the box door, the fan is arranged at the side end of the body, the body comprises a drying box,a carrier plate, an air inlet, a circulation tube and a scavenging air valve, the circulation tube comprises a vent groove, a heat conduction head, a heat conduction device and a heat absorbing block, the heat conduction device comprises an airflow groove, a heat conduction groove, a rotation shaft and a blade, and the blade comprises a blade body, a through hole and a rubber sheet. According tothe device, the blade with an arch-shaped tail end in the heat conduction device is used for centrally guiding airflow, so that the blade drives the rotation shaft to rotate rapidly, the flowing airflow is guided into the heat conduction groove, a contact area between air and the heat conduction head can be increased by the heat conduction groove which is extended from the middle to the outer end,absorption of heat in the air is accelerated, and the situation that a large amount of heat-carrying air is directly discharged during air exchange, and resource wasting is caused is avoided.

The invention provides an automatic pumping irrigation system of banana planting on a mountain land and belongs to the field of solar pumping irrigation. The system comprises a solar panel, a voltage stabilizing circuit, an inverter circuit, a battery pack, an electric quantity detection circuit, a high-voltage relay circuit, a controller circuit, a water suction pump, a water level sensor circuit, a humidity sensor circuit, a motor drive circuit, a motor circuit and a water outlet switch. According to the automatic pumping irrigation system of the banana planting on the mountain land, solar energy is used for generating power, power energy is stored by vanadium cells, an optimal collaboration of the solar energy and the vanadium cells is applied to the mountain pumping irrigation system, and therefore the art is more advanced, the efficiency is higher and the effect is more obvious.

The invention discloses a cranberry overwintering method by freezing crop straws for cold protection, relates to a cranberry overwintering method, and aims at solving the technical problem that branches and tendrils of the cranberry are damaged since an existing cranberry overwintering method employing flooding and freezing cold protection requests that a cranberry pond ridge needs to have enough height and strength, premature ice snow melting easily appears in the areas with frequent high winds and relatively large temperature changes in spring, and water loss of a plant is fast. The cranberry overwintering method comprises the following steps: (1) crop straw coverage; (2) watering freezing; (3) timely removal of the straws in the next spring; and (4) recovery of normal field management. The cranberry overwintering method disclosed by the invention is applied to overwintering of the cranberry.

The invention relates to the technical field of valves, and discloses an anti-blocking stop valve. The anti-blocking stop valve comprises a valve body, a valve rod is movably connected to the top of the valve body, a rotating rod is fixedly connected to the top of the valve rod, a water inlet pipe is fixedly communicated to one side of the valve body, a water outlet pipe is fixedly communicated to the side, far away from the water inlet pipe, of the valve body, the inner top wall and the inner bottom wall of the water inlet pipe are each provided with a sliding groove, sliding rings are in sliding connection to the interiors of the sliding grooves, a limiting ring is fixedly connected to the inner wall of the water inlet pipe, and the sliding rings are located on the side faces of the limiting ring. According to the anti-blocking stop valve, a first filtering net is arranged inside the water inlet pipe, large sundries can be effectively prevented from entering the valve body through the water inlet pipe by means of the first filter net, and therefore the stop valve has the anti-blocking effect, stop valve blockage caused the fact that the sundries enter the stop valve along with water flow is effectively avoided, and people can use the anti-blocking stop valve more conveniently.

The invention relates to the technical field of buildings, and discloses a building foundation supporting structure. The building foundation supporting structure comprises a positioning column, a supporting piece is arranged on the outer side of the positioning column, drainage devices are installed at the bottom end and the upper end of the interior of the positioning column, and a fixing mechanism is arranged on the inner wall of the positioning column in a penetrating mode; the supporting piece comprises a supporting plate, a first rotating mechanism is connected to the surface of the innerside of the supporting plate, a second rotating mechanism is connected to the outer surface of one end of the positioning column, and a connecting rod is arranged between the first rotating mechanismand the second rotating mechanism; and each drainage device comprises a bottom plate and a support, a filtering grid is arranged in each bottom plate, a water pump is installed at the upper end of each filtering grid in the positioning column, and a water pipe is connected to a drainage port of each water pump. According to the building foundation supporting structure, foundation holes with different hole diameters can be reinforced, collapse caused by long-time water immersion of foundation holes can be prevented, and the supporting structure can be fixed more firmly.

The invention relates to the field of building technology, and discloses a building foundation support structure, which includes a positioning column, a support is provided on the outside of the positioning column, and a drainage device is installed on the inner bottom and upper end of the positioning column. The inner wall of the column is provided with a fixing mechanism; the support includes a support plate, the inner surface of the support plate is connected with a first rotation mechanism, and the outer surface of one end of the positioning column is connected with a second rotation mechanism. A connecting rod is provided between the rotating mechanism and the second rotating mechanism; the drainage device includes a bottom plate and a bracket, a filter grill is arranged inside the bottom plate, and a water pump is installed on the upper end of the internal filter grill of the positioning column. The drain port of the water pump is connected with a water pipe. The building foundation supporting structure can reinforce foundation holes with different apertures, prevent the foundation holes from submerging in water for a long time and collapse, and can fix the supporting structure more firmly.

The invention provides a solar irrigation system for banana plantation on a mountain land, and belongs to the field of solar irrigation. The solar irrigation system for banana plantation on the mountain land comprises a solar panel, a voltage stabilizing circuit, a battery pack, an electric quantity detecting circuit, a controller circuit, a motor drive circuit, a motor circuit, a water outlet switch, a water storage tank, a humidity sensor circuit and a water level sensor circuit. The output end of the solar panel is connected with the voltage stabilizing circuit; the output end of the voltage stabilizing circuit is connected with the battery pack; the output end of the battery pack is connected with the controller circuit; the output end of the battery pack is connected with a motor drive circuit; the detecting end of the electric detecting circuit is connected with the battery pack; the output end of the electric quantity circuit is connected with the controller circuit; the output end of the water level sensor circuit is connected with the controller circuit; the output end of the humidity sensor circuit is connected with the controller circuit; the input end the motor drive circuit is connected with the controller circuit; and the output end of the motor drive circuit is connected with the motor circuit.

The invention relates to the technical field of lead frame surface treatment, in particular to an integrated circuit lead frame surface treatment device which comprises a shell, and spray washing mechanisms used for conducting spray washing on the surface of a lead frame are symmetrically arranged on the two sides of the shell. A conveying mechanism used for clamping a lead frame to move in the shell is arranged on the inner wall of the shell, a guide plate is fixed to the inner wall of the shell, the top face of the guide plate is inclined, a communicating groove is formed in the position, located at the lowest position of the guide plate, of the shell, and a draining box is fixed to the outer wall of the shell and communicates with the interior of the shell through the communicating groove. A filter opening is formed in the top surface of the guide plate close to the draining box, and a first filter screen is fixed in the filter opening; according to the scheme, liquid medicine is sprayed to the lead frame through the spray-washing mechanism, and the liquid medicine is filtered in time, so that impurities are prevented from adhering to the surface of the lead frame, and subsequent processing of the lead frame is facilitated.

The invention belongs to the technical field of ranid culture, and discloses a quasipaa spinosa culture method. The quasipaa spinosa culture method comprises the following steps: culture land construction: arranging a plurality of feeding devices in a rearing pool, and by using the characteristic that baits are driven by the feeding devices to move along a vertical direction so as to be convenient to perceive by froglets, thereby improving feeding effects and shortening the growing period of the froglets; a frog spawn incubation stage: setting a condition suitable for tadpoles to incubate, and cleaning lesion frog spawns so as to prevent healthy frog spawns from being infected; a tadpole transformation stage; an adult raising stage. According to the quasipaa spinosa culture method, the problem that quasipaa spinosa slowly grows since quasipaa spinosa feeding effects are poor in the prior art is solved.

The invention belongs to a method and system for self-cleaning water-saving type comprehensive vehicle washing for a civil construction site. The method comprises the steps of foundation ditch precipitation well and drainage ditch system construction, cofferdam pool construction, construction of a wheel washing machine base, a water storage pool, a wheel washing pool, a filtering pool and a settling pool and the like. The system comprises the wheel washing pool used for conducting primary cleaning on tires of a muck vehicle and sludge on a vehicle body, the wheel washing machine base, a wheel washing machine, a foundation ditch precipitation well, a foundation ditch drainage ditch, a cofferdam pool, the water storage pool, the filtering pool and the settling pool. The method and system for self-cleaning water-saving type comprehensive vehicle washing for the civil construction site have the advantages that the method and structure are novel and simple, the vehicle washing efficiency is high, the vehicle washing effect is good, and environment beautifying, energy conservation, environment protection and water recovery circulation utilization are good.