54results about How to "Reduce hydraulic load" patented technology

A ozonated liquid dispensing unit is described. The unit produces and dispenses an ozonated liquid that may be used to clean and sanitize a variety of articles or used in conjunction with cleaning processes and other apparatus. The unit includes a liquid input port to receive liquid into the unit. The unit includes a first dielectric cell for producing ozone gas from ambient air and a second dielectric cell for producing ozone gas. The first dielectric cell is in supply communication with the second dielectric cell for supplying the second dielectric cell with a supply gas containing the ozone gas generated from the ambient air. The second dielectric cell produces ozone gas from the supply gas. An injector is in fluidic communication with the liquid input port. The injector in supply communication with the second dielectric cell for receiving the ozone gas from the second dielectric cell, and the injector mixes the ozone gas from the second dielectric cell with the liquid from the liquid input port to produce an ozonated liquid. A liquid output port discharges the ozonated liquid from the unit. A faucet or spray may be used to control the discharge of the ozonated liquid from the unit.

A ozonated liquid dispensing unit is described. The unit produces and dispenses an ozonated liquid that may be used to clean and sanitize a variety of articles or used in conjunction with cleaning processes and other apparatus. The unit includes a liquid input port to receive liquid into the unit. The unit includes a first dielectric cell for producing ozone gas from ambient air and a second dielectric cell for producing ozone gas. The first dielectric cell is in supply communication with the second dielectric cell for supplying the second dielectric cell with a supply gas containing the ozone gas generated from the ambient air. The second dielectric cell produces ozone gas from the supply gas. An injector is in fluidic communication with the liquid input port. The injector in supply communication with the second dielectric cell for receiving the ozone gas from the second dielectric cell, and the injector mixes the ozone gas from the second dielectric cell with the liquid from the liquid input port to produce an ozonated liquid. A liquid output port discharges the ozonated liquid from the unit. A faucet or spray may be used to control the discharge of the ozonated liquid from the unit.

The invention relates to the fields of environmental engineering and ecological engineering. An ecological check dam prevention and control system for three gorges reservoir region hilly land ravine agricultural non-point source pollution is characterized in that multiple levels of ecological check dams are in trapezoidal distribution with natural fall from high to low along with the hilly land; each level of ecological check dam consists of a water storage regulating pond, a constructed wetland and a check dam main body, which are arranged sequentially according to the water flow direction; the water storage regulating pond is communicated with an overflow port in the previous level of the check dam main body. The system can effectively intercept and control the hilly land ravine agricultural non-point source pollution of the drainage basin, can reduce water and soil loss, can perform water-harvest irrigation, can reduce attenuation of channel nutrients before and after rainfall on sloping fields, and can realize ecological interception of agricultural non-point source pollutants.

Parasitic hydraulic loading on an engine is significantly reduced during cold starts by using an unloader valve to divert the flow of hydraulic fluid from a hydraulic pump to a hydraulic actuator, i.e., load source, recirculating the hydraulic fluid between the hydraulic pump and the unloader valve.

The invention discloses a method for processing agricultural running water pollution by utilizing bank and a compound system for processing running water pollution. A multi-level infiltration bed is constructed at the lower end of an agricultural running water converging channel along the bank from top to bottom, and consists of aquatic plants at the upper part and fillers at the lower part, a sand settling-buffering tank is arranged in front of each level of infiltration bed for settling sand, after the sand settling process, running water enters the infiltration bed for infiltration process, and the running water processed by a multi-level sand settling-infiltrating system is finally discharged into soil or water body by a water outlet area at the tail part of the system. In the invention, the bank is fully utilized for buffering water flow impact, water inlet quality is homogenized, and the purifying effect of running water pollutant is improved. Besides the traditional advantages of simple construction, convenience in operation and management, low cost and the like, the invention also has the advantages of no energy consumption, difficult blockage, small investment, convenience in operation and management, and strong anti-impact and anti-load capability.

The invention provides a hydraulic working rig, which is equipped with a waste gas purifier and can generate hydraulic load in a hydraulic loop to increase the temperature of the waste gas of an engine. In the hydraulic working rig, a load input valve (36) used to heat the waste gas is arranged on a path where the pressure oil from a hydraulic pump (12) is supplied to an output pipe (26) of a hydraulic cylinder (29). When the hydraulic cylinder (29) stops, the temperature of the waste gas flowing into a purifier (19) for removing particles is lowered. When regeneration treatment of the purifier (19) is required, the load input valve (36) is shifted from a neutral position (d) to shift positions (e) and (f). Therefore, any one of first and second safety valves (37, 38) generating hydraulic load may increase the load of the engine (10) of the hydraulic pump (12), thereby increasing fuel consumption and raising the temperature of waste gas.

The invention relates to an ex-situ leaching remediation device suitable for remediation of cohesive soil pollution and a remediation method. The ex-situ leaching remediation device comprises a soil particle size grading and pulping unit, a leaching and dewatering unit, a wastewater treatment unit, a sludge treatment unit, an auxiliary constant pressure water supply unit and an auxiliary medicament allocation unit, wherein the soil particle size grading and pulping unit is composed of a wet crusher, a slurry collecting tank, a roller mud decomposing machine, a wet vibrating screen, a liquid collecting tank and the like, and the leaching and dewatering unit is composed of a leaching tank, a slurry concentration basin, a centrifugal dehydrator and the like; and the wastewater treatment unitis composed of a wastewater reaction combination tank, a wastewater sedimentation tank and the like, and the sludge treatment unit is composed of a sludge storage basin, a filter press and the like. The remediation method comprises the steps of crushing, pulping, screening, leaching, concentration, dehydration, and matching steps of wastewater treatment, sludge treatment, water supply, dosing andthe like. The ex-situ leaching remediation device and the remediation method are mainly suitable for the remediation of various heavy metal, organic or compound polluted soils including cohesive soils, and have the advantages of wide application range, stable remediation effect, simple operation and running, high wastewater recycling rate and the like.

An improved apparatus and method of producing acetic acid includes recovering product from the residue of a light ends column and feeding the acid so recovered forward in order to increase system productivity. Load on the light ends column is reduced and load on a dehydrating column may also be lessened in a preferred embodiment where the recovered acid is fed forward without further water removal.

The present invention is combined stuffing biological turntable sheet and relates to advanced domestic sewage and industry effluent treating technology in environment engineering science. The biological turntable sheet consists of porous spherical or elastic stuffing, water sprinkling board, frame, rotating shaft and netted cover. The porous spherical or elastic stuffing has 60-120 mm diameter and is made of polyethylene. The spherical stuffing includes two layers of balls, the outer is hollow netted ball and the inner is rotating ball. The elastic stuffing is in circular radial filament structure and is combined into string for suspension.

A system for producing and distributing an ozonated fluid is described. The system includes a tank for a fluid. A skid is in fluidic communication with the tank to receive the fluid from the tank. The skid includes an ozone generator to generate ozone gas and an injector to inject the fluid with the ozone gas to produce an ozonated fluid. A distribution network distributes the ozonated fluid for application. The distribution network is in fluid communication with the tank to return unapplied ozonated fluid to the tank.

The invention discloses an underground flow artificial wetland for carrying out enhanced denitrification treatment on C / N ratio sewage, and a construction method thereof, and a method for carrying outenhanced denitrification treatment on low C / N ratio sewage. The construction method comprises: excavating an underground flow artificial wetland bed in a to-be-treated sewage pool; carrying out enhanced denitrification treatment on sewage by using the artificial wetland, wherein the treatment comprises: uniformly distributing water at a top layer plant planting zone, and carrying out heterotrophic denitrification treatment through a corn cob filler zone; and carrying out autotrophic denitrification treatment through a sulfur filler zone, wherein the deep denitrification is achieved and the sewage denitrification efficiency is improved through the heterotrophic and autotrophic combined treatment. Compared with the traditional vertical flow artificial wetland, the underground flow artificial wetland of the invention does not need the arrangement of the aeration device, has characteristics of high denitrification efficiency, high total nitrogen removal rate, high nitrate removal rate, especially high nitrate nitrogen removal efficiency, simple operation and easy management, and greatly improves the deep denitrification performance of the artificial wetland to the sewage plant tail water.

The invention discloses a rotary sponge body synchronous sewage interception and cleaning operation method, which is characterized in that a rotary sponge body device is respectively installed on thetwo sides of a road or at the tail end of a community rainwater pipe network in series or parallel, and a water outlet of a baffle is connected with a municipal rainwater pipe network and nearby urbanwater or a recycling water pool; a water inlet of the baffle is connected with a nearby clean water source, a fire pool or a water supply pipe network through a water pump, and a driving mechanism isconnected with a programmable logic controller to achieve rainwater runoff synchronous sewage interception and cleaning. Compared with the prior art, the method has the advantages that the structureis simple, the use is convenient, filler blockage can be effectively prevented while efficient rainwater runoff pollutant interception is realized, a purification effect is achieved on rainwater runoff pollution, and the problem of black and odorous urban water caused by runoff pollution is effectively prevented.

The invention discloses a modular rotary sponge body device based on synchronous sewage interception and cleaning. The device is characterized by consisting of a sewage interception system and a tubular cleaning system which are arranged on a driving mechanism, wherein the tubular cleaning system is sleeved in the sewage interception system, the tubular cleaning system is turned over by 90 degreesevery time by a driving mechanism, to form a rotary sponge body for synchronous sewage interception and cleaning, and the sewage interception system is a long and thin sponge body with a square section formed by a modular baffle, a flow guide net cover, a mixed filler and water-permeable geotextile. Compared with the prior art, the device has the advantages of simple structure, convenience in use, capability of effectively preventing filler blockage while realizing efficient interception of rainwater runoff, high stability, simplicity and convenience in maintenance, long service life and thelike, has a purification effect on rainwater runoff pollution, and effectively prevents the urban water body black and odorous problem caused by runoff pollution.

The invention discloses a device for rapid treatment of village and town distributed sewage. The device comprises a two-section grille machine, wherein effluent of the grille machine is conducted to a one-stage surface layer turbulent flow screening and filtering device, the effluent of the one-stage surface layer turbulent flow screening and filtering device is conducted to an A2 / O compound flow baffle plate soil infiltration system, the effluent of the A2 / O compound flow baffle plate soil infiltration system is conducted to a two-stage surface layer turbulent flow screening and filtering device, and the effluent of the two-stage surface layer turbulent flow screening and filtering device is conducted to a cyclone desanding device. The invention also discloses a method for performing rapid treatment on the village and town distributed sewage by using the device.

A forklift (1) according to the present invention includes: an engine (7); a hydraulically-operated device for cargo handling (2); a pump for cargo handling (5) that is driven by the engine (7); hydraulic piping for cargo handling (8) that connects the pump for cargo handling (5) and the hydraulically-operated device for cargo handling (2); discharge piping (110) that branches from the hydraulic piping for cargo handling (8) and is connected to a tank (4); a switching valve (111) capable of switching the opening and closing of the discharge piping (110); a control device (13) that closes the discharge piping (110) when the rotation speed of the engine (7) is larger than a predetermined value, and opens the discharge piping (110) when the rotation speed of the engine (7) is less than or equal to a predetermined value; and a sub-relief valve (112) that adjusts the flow rate of hydraulic oil that is discharged from the discharge piping (110) to the tank (4), on the bases of the pressure or the flow rate of the hydraulic oil.

The invention discloses a sponge wetland system. The sponge wetland system comprises rainwater wetland gardens, grass planted ditches, rainwater collecting and adjusting tanks, an enhancement treatment deepwater area and a shallow ecotope, wherein the rainwater wetland gardens are connected with one another through the grass planted ditches, the grass planted ditches are connected with the rainwater collecting and adjusting tanks, the building terrains of the rainwater wetland gardens are higher than those of the rainwater collecting and adjusting tanks, the rainwater collecting and adjustingtanks are connected with the enhancement treatment deepwater area, effluent valves are arranged at the communicated positions, and the shallow ecotope is arranged on the periphery of the enhancement treatment deepwater area. According to the sponge wetland system, measures of penetration, retention, impoundment, purification, recycle, stabilization and the like are integrated, water yield and water quality impact of rainfall runoff on a constructed wetland is reduced, retention time of rain sewage is prolonged, the treatment efficiency is improved, meanwhile, a seasonal sponge wetland landscape is created, and not only are purposes of aquatic environment purification and aquatic ecological rehabilitation achieved, but also the landscape performance of a wetland garden is improved; source controlling, sewage intercepting, endogenous treating, water quality purifying and ecological rehabilitating are conducted on a target water body, and the rainwater storing, throttling and purifying capability and the wetland stability are improved.

The invention discloses a gas expanded granular sludge bed anaerobic reactor. The reactor comprises an anaerobic reaction body (9), a water pump (6), a Venturi tube (5), a biogas circulation pipeline (8), a feeding tank (7), a discharging port (3), a gas outlet (2), a gas holder (1) and a sampling hole (4). According to the gas expanded granular sludge bed anaerobic reactor, sewage is sucked by the water pump (6), is mixed with biogas through the Venturi tube (5) and then enters the anaerobic reaction body (9) through jet, uniform distribution of gas and the liquid is realized, the circulated biogas amount can be controlled by controlling the external circulation pipeline (8), and the expansion degree of granular sludge in the reactor is controlled.

The invention relates to a fresh leachate treatment combined system and process suitable for a household garbage transfer station. The system comprises an adjusting pool and grid unit (1), a river sand filtering reactor unit (2), a parallel degradation-resistant living source filler bioreactor unit (3) and a nanofiltration treatment unit (5) which are sequentially connected through pipelines. Compared with the prior art, the fresh leachate treatment combined system of the invention has the advantages that organic pollutants in leachate can be efficiently removed, the denitrification effect isachieved, the effluent quality reaches the wastewater quality standards for discharge to municipal sewers (GB / T 31962-2015), the problem of leachate treatment of a garbage transfer station in the field of water pollution control is effectively solved, the cost is low, the occupied area is small, and the problem of leachate treatment of the garbage transfer station in the field of water pollution control is effectively solved.

A hydraulic pressure control circuit of a torque converter includes a torque converter control valve for controlling a line pressure supplied from a line regulator valve stably controlling a hydraulic pressure supplied from a hydraulic pump to be directly supplied to a fluid chamber inside a torque converter case as an operation hydraulic pressure, a reducing valve for stably controlling the hydraulic pressure, a torque converter control solenoid valve for controlling the hydraulic pressure supplied from the line regulator valve to be supplied to an engage hydraulic chamber of the lock-up clutch, and a switch valve for supplying the hydraulic pressure supplied from the reducing valve to a releasing hydraulic chamber of the lock-up clutch or exhausting the hydraulic pressure of the releasing hydraulic chamber of the lock-up clutch while being controlled by a control pressure of the torque converter control solenoid valve.

A transmission controller judges whether or not there was performed a specific shift operation where the mode of a transmission is alternately switched between a D-mode and a R-mode, and when it is judged that the specific shift operation was performed and when a forward clutch is engaged, the forward clutch is brought into an engaged state by supplying a hydraulic pressure lower than a lock pressure, with which a locking mechanism is brought into a locked state, to an ON-pressure piston chamber.

The present invention relates to biological treating technology for sewage and the sewage treating bioreactor is suitable for treating organic waste water in both aerobic and anaerobic conditions. The bioreactor of the present invention consists of guide plate, mixing area and static area and circulating channel formed by the separating guide plate. Active sludge is first deposited and concentrated in the static area and then carried by the mixed liquid circulating constantly in the circulating channel to the mixing area. So, the bioreactor has relatively high sludge maintained to improve sewage treating performance while lowering the sludge flow rate from the deposit pond, the hydraulic load and solid load of the deposit pond and improving the effluent quality of the deposit pond. The present invention has relatively high sewage treating capacity.

The invention relates to the technical field of lifting dams, and discloses a stable hydraulic lifting dam with a locking mechanism. The lifting dam comprises a base; a plurality of gates are arrangedon the upper surface of the base in parallel; a pressure relief opening is formed in the middle of each gate; a blocking plate is mounted in the middle of each gate and located on the inner side of the corresponding pressure relief opening; two main hydraulic rods are correspondingly installed on the rear surface of each gate and located on two sides of the corresponding pressure relief opening;two second lock rods are correspondingly arranged on one side edge of the rear surface of each gate and lock seats are installed on the other side edge of the rear surface of the corresponding gate and correspond to the second lock rods; and two first lock rods are installed on the side, close to the corresponding main hydraulic rods, of the rear surface of each gate. The stability of the gates isimproved, the pressure load and the tension load borne by the gates can also be improved, the second lock rods and the lock seats are used in cooperation, the blocking efficiency of the gates is high, the plurality of independent gates can be connected in series into a whole, the gates can also be rapidly formed into individual wholes, operation is easy and convenient, and implementation is convenient.

A forklift (1) according to the present invention includes: an engine (7); a hydraulically-operated device for cargo handling (2); a pump for cargo handling (5) that is driven by the engine (7); hydraulic piping for cargo handling (8) that connects the pump for cargo handling (5) and the hydraulically-operated device for cargo handling (2); discharge piping (110) that branches from the hydraulic piping for cargo handling (8) and is connected to a tank (4); a switching valve (111) capable of switching the opening and closing of the discharge piping (110); a control device (13) that closes the discharge piping (110) when the rotation speed of the engine (7) is larger than a predetermined value, and opens the discharge piping (110) when the rotation speed of the engine (7) is less than or equal to a predetermined value; and a sub-relief valve (112) that adjusts the flow rate of hydraulic oil that is discharged from the discharge piping (110) to the tank (4), on the bases of the pressure or the flow rate of the hydraulic oil.

The invention discloses a pneumatic honeycomb ceramic biological rotating disc. The biological rotating disc comprises porous honeycomb filling material (1), air grooves (2), a disc framework (3), a rotating shaft (4) and net covers (5), wherein the disc framework (3) is cylindrical; the net covers (5) are arranged on two sides of the disc framework (3); the rotating shaft (4) is arranged in the center of the disc framework (3); the air grooves (2) are formed in the outer circumference of the disc framework (3); the porous honeycomb filling material (1) is located in the net covers (5) on the two sides of the disc framework (3); the particle diameter of the porous honeycomb filling material (1) is 60-120 mm; the porous honeycomb filling material (1) is ceramic and comprises an inner-layer honeycomb body and an outer-layer honeycomb body, the outer-layer honeycomb body is a hollow honeycomb body shaped like a fishing net, the inner-layer honeycomb body is a transformation honeycomb body, the inner-layer honeycomb body and the outer-layer honeycomb body are strung and hung, so that the filling material (1) is large in specific surface area, easy for biological membranes to stick to, high in biomass and high in treatment efficiency.

The invention relates to a vertical-flow constructed wetland device, in particular to a constructed wetland device for advanced treatment of domestic sewage. The constructed wetland device is a vertical-turning-flow constructed wetland which has the functions of enhancing nitrification and denitrification, improving purification effect and the like, and can improve a constructed wetland system and reduce installation and maintenance cost. The vertical-turning-flow comprises an inner cylinder, an outer cylinder and a matrix hopper, wherein the inner cylinder is a hollow cylinder with an opening in the upper end; the outer cylinder is a hollow cylinder with an opening in the upper end and coincides with the vertical center line of the inner cylinder; and the matrix hopper is of a hollow cuboid-like structure with an opening in the upper end. According to the device, the denitrification effect of nitrate nitrogen is enhanced through a flooding saturation area of the central inner cylinder; and through multiple layers of inner and outer cylinder spacing plates and the matrix hopper, a trickling filtration aerobic zone is formed, the nitrification effect of ammoniacal nitrogen is enhanced, a water body is baffled for times to prolong hydraulic retention time, and a space utilization rate is increased, thereby lowering land cost.

The invention discloses a high-efficiency dual-stage centrifugal regenerative pump. The high-efficiency dual-stage centrifugal regenerative pump comprises a first-stage centrifugal pump consisting ofa centrifugal impeller and a centrifugal guide blade, a second-stage regenerative pump consisting of a regenerative pump impeller and a regenerative pump body, and a transferring diversion cavity forconnecting the first-stage centrifugal pump with the second-stage regenerative pump; and the centrifugal impeller and the regenerative pump impeller are coaxially fixed on a pump shaft, and a motor isused for simultaneously driving the two impellers to rotate. According to the high-efficiency dual-stage centrifugal regenerative pump disclosed by the invention, through pressurizing of the first-stage centrifugal pump, the gas containing rate of inlet fluid of the regenerative pump can be effectively reduced, the inlet condition of the second-stage regenerative pump is improved, and the operation noise of the pump is reduced. Besides, through the organic combination of the first-stage centrifugal pump and the second-stage regenerative pump, the purpose that the two pumps have complementaryadvantages is achieved, the compact integral structure of the pump is reserved, and the volume of the high-efficiency dual-stage centrifugal regenerative pump compared with that of a conventional regenerative pump is not greatly changed.