76results about How to "Large output flow" patented technology

The invention relates to a dual-cavity dual-drive piezoelectric stack pump, and belongs to the field of micro-electrical mechanics. Rough-adjustment pre-tightening nuts and fine-adjustment pre-tightening nuts on the two sides are respectively threaded with a stack supporting body; piezoelectric stacks on the two sides are fixedly adhered to a stack seat and are connected with the rough-adjustment pre-tightening nuts through inclined block pre-tightening devices in a contact way; the piezoelectric stacks are connected with a stack through a lead wire; vibrating diaphragms on the two sides are fixedly adhered to the stack seat; the vibrating diaphragms and valve seats on the two sides form cavities on the two sides respectively; inlet check valves are fixedly connected with the valve seats; outlet check valves are fixedly connected with the valve seats and are connected with a flow channel respectively; and the valve seats on the two sides are fixedly connected with each other through bolts. The dual-cavity dual-drive piezoelectric stack pump has the following advantages of: novel structure, high output flow rate, strong bearing capacity and higher pressure output, and simultaneously has good controllability and output stability.

The invention relates to a proportional flow valve controlled by a pilot flow closed loop, which is provided with a flow sensor consisting of a two-position two-way cartridge valve. The control cavity of a main valve is communicated with the oil inlet of a pilot valve; the oil inlet of the flow sensor is communicated with the oil outlet of the pilot valve; the oil outlet of the flow sensor is simultaneously communicated with the springless oil cavity of the pilot valve and the oil outlet of the main valve; the oil outlet of the flow sensor is communicated with the control cavity of the flow sensor through a damping hole; the control cavity of the flow sensor is communicated with the spring oil cavity of the pilot valve; the valve core of the flow sensor, the valve core of the pilot valve and a flow sensor spring are coaxially arranged; and one end of the flow sensor spring acts on the core end of the pilot valve, while the other end acts on the valve core end of the flow sensor. The proportional flow valve can obtain seven technical schemes by changing communication relations. The proportional flow valve comprises an innovative idea that the flow of the pilot valve is detected by a minitype flow sensor, the flow of the pilot valve is controlled in the way of forming the closed loop and the flow of the main valve is amplified according to a Valvistor valve amplification principle. The proportional flow valve has the advantages of combining two control principle structures of flow closed loops and flow amplification and has the characteristics of simple structure, high flow control precision and high efficiency.

The invention relates to a single-chamber dual-vibrator piezoelectrical pump, belonging to the mechanical field of micro-electronic fluid. A pump body is fixedly connected between an upper cover and a lower cover; an inlet pipe and an outlet pipe are respectively and fixedly connected with the water inlet and a water outlet of the pump body; the front part of a pump chamber is fixedly connected with a pump chamber driving piezoelectrical vibrator 1; the water inlet of the pump chamber is fixedly connected with a check driven valve 1 or a drive valve 1; the invention is characterized in that the rear of the pump chamber is fixedly connected with a pump chamber piezoelectrical vibrator 2; the water outlet of the pump chamber is fixedly connected with a check driven valve 2 or a drive valve 2. The invention has the advantage that as the piezoelectrical vibrator has the advantages of fast responding, no electromagnetic interference, etc., the two drive vibrators in the pump chamber are led to keep harmonious and consistent, thus increasing the output flux and improving the output performance of the piezoelectrical pump.

The invention belongs to the technical field of high-pressure water jet cleaning equipment, and in particular relates to a pulse energy storage type high-pressure water jet cleaning system. The system comprises a power distribution device, a high-pressure water pump, a pneumatic energy storage device and a pulse jetting device, wherein the power distribution device is connected with the high-pressure water pump; and the pulse jetting device is connected with the high-pressure water pump through the pneumatic energy storage device. The pulse energy storage type high-pressure water jet cleaningsystem provided by the invention adopts a large-flow high-pressure water pump and technical measures of pulse jetting, pneumatic energy storage and aerification cavitation erosion, effectively improves the impact force and crushing capability of water jet, and has the characteristics of strong impact force of water jet, large output flow and capability of adapting large-scale cleaning operation.

The invention discloses a mass flow high-frequency direct-acting electro-hydraulic servo valve based on a great magnetostriction converter, and belongs to the technology field of hydraulic servo control. The mass flow high-frequency direct-acting electro-hydraulic servo valve comprises a valve body (24), a great magnetostriction converter arranged above the valve body (24), a micrometric displacement mechanism, a shell (4), and slide valve resetting and balancing devices. The micrometric displacement mechanism and the shell (4) are arranged on the left sides of the valve body (24) and the great magnetostriction converter, and the slide valve resetting and balancing devices are arranged inside and on the left side of the valve body (24). A pre-compression mechanism, a cooling system and a heat compensation mechanism are arranged on the great magnetostriction converter, amplification and transmission of outputted displacement are realized by utilizing the micrometric displacement mechanism based on a leverage theory, a valve plug is driven to generate displacement, and the servo valve is enabled to output control flow in proportion with drive current. The servo valve has the advantages of quick response, wide bandwidth, big control flow, strong anti-pollution capacity and the like.

The invention relates to a valve, particularly relates to an excitation valve, and belongs to the field of hydraulic control in the fluid power transmission and control field. The technical scheme includes that the excitation valve comprises a valve body, a valve element, a left end cover and a right end cover, and is essentially a three-position four-way electrically-driven reversing valve, the three-position four-way electrically-driven reversing valve has a left position, a middle position and a right position and is provided with a control port A, a main oil inlet, a control port B and an oil return port T, a throttle shoulder, a control shoulder A, a control shoulder B and a high-pressure shoulder which are respectively provided with wavy grooves are sequentially arranged on the valve element from left to right, the valve element extends out of an opening in the right end cover, and a key slot is formed in the extending end of the valve element. Torque is connected into the excitation valve via the key slot, so that the valve element can rotate and further can axially reciprocate, and oil inlet directions of the control port A and the control port B can be changed. Compared with the traditional pilot-operated electromagnetic valve or 2D (two-dimensional) high-frequency excitation valve, the excitation valve has the advantages of simplicity in control, high flow, applicability to specific vibration test benches and wide range of engineering application places.

The invention discloses a device utilizing multi-component liquid to perform mixing and constant-temperature corrosion preventive spraying. A constant-temperature heater coil and a temperature sensor connected with the constant-temperature heater coil are arranged in a material feeding barrel of the device, a used AC variable frequency motor is fixedly and axially connected with an oil hydraulic pump, the AC variable frequency motor receives signals of a pressure sensor via a frequency conversion controller to adjust revolving speed, and a rubber tube heating coil is winded on a rubber tube to control temperature of the rubber tube via the other temperature sensor. A hybrid tube is fixedly connected with a nozzle boss via a thread, and the nozzle boss can be changed rapidly.

In the present invention, a first high pressure sensing device is connected to the air inlet of the main valve, and a second high pressure transducing device is connected to the air outlet of the main valve. The air inlet end of the first high pressure pneumatic switch valve is connected with the air inlet chamber of the main valve, and the exhaust end is connected with the pressure-regulating chamber of the main valve. The air inlet end of the second high pressure pneumatic switch valve is connected with the pressure-regulating chamber of the main valve, and the exhaust end is connected with the exhaust chamber of the main valve. The holding wire of the first and second high pressure transducing units and the electromagnetic control wire of the first and second high pressure pneumatic switch valves are connected with the display unit and the control part. The air in the pressure-regulating chamber is used for controlling the opening of the main valve so as to realize throttling.

The invention discloses a well drilling type artificial upwelling coral protecting method and device and belongs to the technical field of marine ecological environment protection. The method includesthe steps of firstly, drilling to an underground covering layer; secondly, placing an upwelling pipe in the well, and regulating the lower end of upwelling pipe until the lower end reaches a water-bearing stratum; thirdly, mounting a well cover plate on wellhead seabed to fix the upwelling pipe; fourthly, injecting gas into the upwelling pipe through a gas injecting system to continuously liftingthe water of the underground water-bearing layer to the surface layer. By using underground cold water discharged from the upwelling pipe to irrigate corals, the coral bleaching problem caused by temperature rising can be solved.

The invention relates to a high speed switch valve, in particular to a water-base hydraulic electrostriction high speed switch valve and belongs to the technical field of hydraulic transmission. The water-base hydraulic electrostriction high speed switch valve comprises a water hydraulic high speed switch valve, a left electrostriction driver and a right electrostriction driver. The left electrostriction driver and the right electrostriction driver are arranged at the left end and at the right end of the water hydraulic high speed switch valve symmetrically. The electrostriction drivers are composed of output rods, pressing covers, electrostriction rods, sleeves, casings, temperature compensating plates and bases. The hydraulic high speed switch valve is composed of a valve core, a valve sleeve, a retaining ring, a sealing ring, a spring, an end cover and a valve body. The water-base hydraulic electrostriction high speed switch valve solves the problem of contradiction among high pressure, high frequency response and large flow well and simultaneously solves the problem that output displacement of the drivers is enlarged, temperature change effects are large and the like.

A balance pump for heat supply comprises a receiving tube, a mixing tube, and a jet flange and a jet nozzle which are coaxially arranged, wherein the mixing tube is an integral body formed by sequentially connecting a drainage taper pipe, a throat pipe and a diffuser pipe end to end, the jet flange is installed at the front end of the jet nozzle and communicates with a central through hole of thejet flange, the tail end of the jet nozzle is stretched into the drainage taper pipe and suspended in the drainage taper pipe, the front end of a pipe body of the receiving pipe is fixed on the jet flange, the tail end of the pipe body of the receiving pipe is fixed on the outer side wall of the throat pipe, the jet nozzle is placed in the receiving pipe, a jet guiding inlet is formed in a position, corresponding to the throat pipe, on the side wall of the throat pipe, and connected with the jet guiding pipe in communication mode, a plurality of drainage channels are symmetrically formed in the periphery of the central through hole in the jet flange, a regulation water inlet is formed in the side wall of the tail segment of the diffuser pipe, a regulation water outlet communicates with theregulation water inlet through a regulation pipe, and bolts are arranged on the drainage channels in threaded connection mode, and block the drainage channels or regulate the size of the regulation water outlet. The balance pump for the heat supply can solve the problems that an existing balance valve or regulating valve is large in debugging difficulty, limited in installation and single in function, a water mixing device is long and the like.

The invention relates to a multistage sewage electro-flocculation treatment system which comprises a water pump, a host device, a sedimentation tank and a filtration and adsorption device, wherein thewater pump is connected with a water inlet and used for pumping sewage; the host device comprises a plurality of electro-flocculation modules connected sequentially and a displaying and monitoring module used for displaying a PH value, temperature, turbidity and water level information, adjusting the flow rate of the water pump and the electrolytic current of each of the electroflocculation modules and realizing multi-stage electrolysis; the sedimentation tank is connected with the host device and used for discharging the precipitated sewage after multistage filtration and adsorption. Compared with the prior art, the multistage sewage electro-flocculation treatment system provided by the invention has the advantages of multi-stage electrolytic precipitation, high efficiency, stable electrolytic current, water pump flow rate control, high efficiency and stability, applicability to heavy metals, reduced flow rate, improved purifying effect, self-cleaning, full water purification and thelike.

The invention discloses an inverse-proportion three-way flow valve. The inverse-proportion three-way flow valve comprises a valve body, a P port, a T port and an A port are formed in the valve body, avalve sleeve is assembled on the upper portion of the valve body, a proportion electromagnet is assembled on the upper portion of the valve sleeve, an armature is arranged in the proportion electromagnet, and the lower surface of the armature abuts against a push rod; the push rod penetrates through the valve sleeve to abut against a throttle valve element, the lower portion of the throttle valveelement extends into the valve body, and a throttle spring is arranged between the throttle valve element and the valve body; a throttle control hole is formed in the side wall of the throttle valveelement, when a power outage occurs on the proportion electromagnet, and the throttle control hole communicates with the A port through a through-flow cavity, a through-flow hole and a differential pressure feedback cavity which are sequentially connected in the valve body; and when the proportion electromagnet is electrified, the throttle control hole is covered by a sealing convex shoulder of the valve body step by step, when a maximum voltage is given, the sealing convex shoulder can completely cover the throttle control hole. The inverse-proportion three-way flow valve has the advantages that the structure is reasonable and compact, the size is small, and control is sensitive.

The invention relates to a gas compression method adopting end face compression and an end face compression electric air source device, wherein the method comprises the following steps: both end faces of an impeller are provided with ring grooves; the inside of each ring groove is provided with vanes which evenly divide the ring groove into a plurality of compression units; the impeller is arranged inside a closed cavity which is matched with the impeller; both inside walls of the closed cavity are provided with air inlet ducts, air outlet ducts and cambered gas guiding grooves corresponding to the positions of the ring grooves arranged on the impeller; one end of each cambered gas guiding groove is communicated with each air inlet duct, while the other end is communicated with each air outlet duct; the impeller is driven to rotate at high speed through a motor, thereby ensuring that gas is fed into the cambered gas guiding grooves from the air inlet ducts; multistage compression of the gas positioned at both end faces of the impeller is completed by means of the compression units arranged on the impeller; finally, gas is discharged from the air outlet ducts. The device comprises a drive motor, a first end cap, a second end cap, an outer ring and an impeller, wherein both end faces of the impeller are provided with ring grooves which are provided with a plurality of compression units inside. The method can provide stable air flow with high pressure ratio and mass flow; meanwhile, the device has the advantage of convenient carrying.

The invention discloses an integrated type high-flow piezoelectric pump. The integrated type high-flow piezoelectric pump is formed by four layers of pump bodies in a pressing way, wherein the pump body in each layer comprises two piezoelectric micro-pumps which are connected in parallel, a public inlet and a public outlet; a pump body I, a pump body II and a pump body III are completely same in structure; the public inlet and the public outlet of a pump body IV do not completely penetrate through the pump body IV; other structures of the pump body IV are same as the pump body I; a valve plate, a parabola pump cavity, a piezoelectric vibrator and the like are arranged at the top part of the pump body I, an inlet flow passage and an outlet flow passage are formed in the bottom part of the pump body I; the piezoelectric vibrator is fixedly arranged on the pump body I in a simple-support way; the bottom part of the pump body I is connected with the bottom part of the pump body II in the pressing way, the top part of the pump body II is connected with the top part of the pump body III in the pressing way, and the bottom part of the pump body III is connected with the bottom part of the pump body IV, so that the whole integrated type high-flow piezoelectric pump is further formed. The integrated type high-flow piezoelectric pump has the advantages of high integration, small volume and large output flow.

The invention relates to an inflator for an air-bag, which comprises at least one pressure vessel (2) containing pressurised gas, mounted on a housing which receives gas from said vessel (2) and direct it to the air-bag to be inflated, via an aperture (21 ) formed in a wall (210) of said vessel (2), this aperture (21 ) being normally closed by a foil (22) fixed on the wall (210), at the outside of the vessel (2), which breaks when a predetermined pressure is reached in said housing, characterized in that said vessel (2) contains means (5) for increasing the output flow of pressurized gas through said aperture (21 ) while the delta pressure between the inside of said vessel (2) and said housing decreases.

The invention discloses an energy-saving vanadium cell capable of improving cell stability. The energy-saving vanadium cell comprises a positive pole half cell, a negative pole half cell and a cell stack, wherein the positive pole half cell and the negative pole half cell are connected with the cell stack respectively; the positive pole half cell comprises a positive pole liquid storage tank, a first air outlet pipe, a first delivery pipe, a second delivery pipe, a positive pole pump, a third delivery pipe and a fourth delivery pipe; and the negative pole half cell comprises a negative pole liquid storage tank, a third air outlet pipe, a fifth delivery pipe, a sixth delivery pipe, a negative pole pump, a seventh delivery pipe and an eighth delivery pipe. Through the switching control of avalve, the delivery of an electrolyte under the effect of gravity can be realized, the delivery flow of the electrolyte can be improved by using gas thrust, the output of the pump is reduced, an energy-saving effect is reached, and the air outlet pipes enable gas to be in a safe state all the time inside the liquid storage tanks. Gas inside the liquid storage tanks is used for isolating the electrolyte and external gas, divalent vanadium ions inside the electrolyte are unlikely to oxidize, the stability of the electrolyte is facilitated, the performance of the vanadium cell is improved, and the charge and discharge efficiency of the vanadium cell is improved.