30results about How to "Strong water pressure" patented technology

The invention discloses an emptying water drain valve of a solar water heater and a pneumatic clutch switch thereof. The emptying water drain valve disclosed by the invention comprises a valve body and a valve rod, wherein the valve rod is in a hollow cylinder shape; two partition walls are arranged in the valve rod; the hollow cylinder shape of the valve rod is divided into an upper section, a middle section and a lower section; the upper section and the middle section are provided with through holes; the lower end of the valve rod is fixedly connected with a compression head; four valve rubber sleeves are arranged on the valve rod; a hermetic seal rubber sleeve is arranged on the compression head; the inner edge of each valve rubber sleeve is fixedly connected to the circumference of the valve rod; the outer edge of each valve rubber sleeve is fixedly connected to the cavity wall of the valve body; the inner edge of the air hermetic rubber sleeve is fixedly connected to the circumference of the compression head; the outer edge of the hermetic seal rubber sleeve is fixedly connected to the inner wall of a valve bottom cover; an air duct connector is arranged on the bottom cover of the valve; and the air duct connector is connected with the air duct of the pneumatic clutch switch. The emptying water drain valve disclosed by the invention is applied to the solar water heater, can prevent scale and abrasion, has the advantages of good sealing property, low cost, high emptying speed, no residual water in the valve and pipes, stable drain water flow, no bubble and strong waterpressure and effectively stops the freezing block of a water drain pipe in winter, and the pneumatic clutch switch disclosed by the invention is not influenced by air leakage and has the advantages of stable properties and long service life.

A low energy consumption catamaran structure belongs to the field of shipbuilding, and solves the problem of turbulence generated to the outside of the ship hull and energy loss caused by the ship traveling wave when the ship is sail. The low energy consumption catamaran structure is characterized in that: two hulls are symmetrical, flat plates are arranged on the outside, the distance between thebow and the stern of the ship is equal to the distance between the outboard straight plates, a fluidic curved panel arranged as a vertical flat plate and bent outward to the stern are arranged at theinner sides of the two hulls, the two bow heads are provided with a tip diversion head with a sharp angle of 19.5 DEG, the outer triangular surface is coplanar with the outer straight plates of the hulls, the medial triangle slopes vertically to the stern, and 19.5 degree from that longitudinal horizontal distance L / 2ctg from the bow is provided with a turbulent guide plate. When a catamaran is sailing forward, the water discharged from the bow only flows to the inner side of the catamaran, and the velocity to the stern is increased through the turbulent guide plate, which assists the propulsion of the catamaran to increase the propulsion force, at the same time, the water pressure of the stern and stern is raised, the water pressure difference between the forward and stern of the catamaran is reduced, the wave-making resistance is reduced, and the speed is increased.

The invention discloses an assembled movable dam capable of supporting each other, and relates to the technical field of movable dams. Above and corresponding to the positions of the first dam body unit and the second dam body unit, a first decompression unit and a second decompression unit are respectively fixed and installed, and the movable dam is respectively provided with a mutual support mechanism that supports each other and It acts as a decompression unit that shares the pressure on the electric hydraulic cylinder. The mutual support mechanism can make each movable dam have mutual support force. In actual use, it can make the entire movable dam-shaped interception structure withstand the water pressure capacity. It is stronger and will not affect the opening and closing of a single movable dam. The decompression unit can form a pulling force on the baffle of the dam body, thereby reducing the pressure on the electric hydraulic cylinder and prolonging the service life of the electric hydraulic cylinder when the water is stored and intercepted. .

An inorganic micro -irrigation pipe and the mold used and the method of making a micro -irrigation tube with this mold, including the hollow tube, and the tube wall is set with at least one evenly distributed bubble.There is a hole with a diameter of 10 to 600nm between the walls.The tubular production raw materials include fiber, silicate cement and water, and the production materials of the tube body are also added with foaming agents.The ingredients of the foam concrete used in the present invention are close to the soil composition, and the price of the component used is cheap, durable, and water -saving effect can reach the level of trace irrigation and moisturizing.EssenceAt the same time, the water -saving effect is comparable to the trace irrigation head and micro -moisturizing tube, which is 60-80%more than drip irrigation water.

The invention relates to a centralized water supply intelligent hot water outlet device and its control method in the technical field of hot water supply equipment. valve, the water outlet pipeline is also connected with a water outlet branch pipe, and a micro water pump, an outlet water flow sensor and a one-way valve are arranged on the water outlet pipe, and the inlet end of the one-way valve is connected with the water storage tank; , the return water branch pipe is provided with a return water flow sensor and a return water branch solenoid valve. 5~20% of the effective flow cross-sectional area. It can insulate pipelines with low energy consumption, and can quickly switch between the state of heat preservation and the state of water.

The invention discloses a novel backwashing water intake system for a water purification building. The system comprises an infiltration gallery, a clean water tank and the water purification building directly arranged in a river, wherein the infiltration gallery is communicated with the clean water tank through a bottom through hole; the clean water tank is communicated with the bottom of the water purification building through a pipeline; infiltration gallery bell mouth bases are symmetrically arranged at the bottoms of both sides of the infiltration gallery and are provided with bell mouths; the bell mouths are arranged obliquely downwards from the outside to the inside of the infiltration gallery; the pipeline comprises a water inlet pipe, a backwashing pipe and a water outlet pipe; the water outlet pipe is arranged on the water purification building; a horizontal centrifugal pump is arranged at the bottom of the water purification building; the water inlet pipe is arranged on the horizontal centrifugal pump; one end of the water inlet pipe is communicated with the clean water tank, and the other end of the water inlet pipe is communicated with the water outlet pipe; the backwashing pipe is arranged on the water inlet pipe; and one end of the backwashing pipe is communicated with another clean water tank. The water intake system has the characteristics of high backwashing water flow, high water pressure, capabilities of ensuring the engineering quality and the backwashing effect, saving materials and lowering the construction cost and difficulty in blocking.

The invention discloses a cement based capillary crystalline high-performance waterproofing powder and an application thereof. The cement based capillary crystalline high-performance waterproofing powder is characterized in that inorganic materials of Portland cement, quartz sand and the like serve as a base, active compound capillary crystalline master batch, polymers and other various auxiliarymaterials are added and mixed to prepare powder waterproofing materials; and the cement based capillary crystalline high-performance waterproofing powder includes, by weight, 35-50 parts of the Portland cement, 25-32 parts of the quartz sand, 2-6 parts of the capillary crystalline active master batch, 0-10 parts of calcium carbonate, 5-13 parts of talcum powders, 0.1-0.2 part of cellulose, 6-12 parts of rubber powders, 0.55-1.2 parts of water reducers, 0.1-0.4 part of power organic silicon defoamer and 4.1-5.8 parts of complexing agents. Various raw materials are uniformly stirred in a mixer to obtain the cement based capillary crystalline high-performance waterproofing powder, and the cement based capillary crystalline high-performance waterproofing powder is mixed with a certain amount of clear water to prepare the waterproofing materials. The cement based capillary crystalline high-performance waterproofing powder is simple in preparing, convenient to use and good in water resistance and anti-permeability.

A compounded toothbrush comprises a compounded brush head and a toothbrush handle. The compounded brush head is provided with a hollow part and a jet flow hole which are communicated with each other,an opening of the hollow part is formed in the near end of the compounded brush head and connected with the toothbrush handle, and the jet flow hole is formed in the far end of the compounded brush head; a water inlet channel and a driving motor are arranged inside the toothbrush handle, one end of the water inlet channel is connected with an external water source, the driving motor is provided with a hollow shaft for driving the compounded brush head to move, and the two ends of the hollow shaft are communicated with the open end of the hollow part and the water inlet channel to form a through runner. According to the compounded toothbrush and tooth cleaning set, the tooth brushing and tooth washing compounded function is achieved through the compact integrated structure, the number of tooth cleaning tools needed by a user is decreased, the tooth cleaning process is simplified, and the set has the advantages of being good in storage, regular in constraint and convenient to use.

A combined type flush toilet guiding, cleaning and maintaining device is disclosed. The device includes a front positioning guider, a pipe wall cleaner used in match with the front positioning guider,and a pipe wall maintainer used in match with the front positioning guider, wherein the front positioning guider includes a drag leader, a ring-shaped drag wing, a guiding rope, a pipe port sealer, afirst hose and a fixed bag; the pipe wall cleaner includes a cleaning bag, cleaner hollow spiral steel wires, a second hose, a cleaner guiding rope and a cleaning part; and the pipe wall maintainer includes a maintaining bag, maintainer hollow spiral steel wires, a third hose and a maintainer guiding rope. The device can successfully pass through an S-shaped bent part of a sewer pipe of a flush toilet to dredge and clean the sewer pipe of the flush toilet, and maintains the cleaned sewer pipe of the flush toilet. The device can clean the flush toilet, can reduce the blockage frequency of theflush toilet and prolongs service lifetime of the flush toilet.