71results about How to "High degree of self-control" patented technology

The invention relates to a printing and dyeing wastewater treatment system, and belongs to the technical field of printing and dyeing wastewater treatment. The system consists of nine parts, namely an adjusting tank 1, a lift pump 2, a coagulating system 3, a primary sedimentation tank 4, a contact oxidation sediment system 5, a sand filtering tank 6, an active carbon adsorbing tank 7, a sludge pump 8 and a sludge concentrating tank 9. The printing and dyeing wastewater treatment system adopts the combined process of coagulation, contact oxidation, sand filtration and active carbon adsorption, and adds the deep treatment processes of the sand filtration and the active carbon adsorption after the physical-chemical treatment coagulation process and the biochemical treatment contact oxidation process. The printing and dyeing wastewater treatment system can be designed and manufactured respectively according to the wastewater quantities of printing and dyeing enterprises, and has the advantages of good treatment effect of printing and dyeing wastewater, stable operation, high degree of automation, simple operation, convenient maintenance, good and stable outlet water quality, superior level to the national emission primary standard and the like. The system particularly has good treatment effect of the printing and dyeing wastewater with high density and high chromaticity.

The invention discloses a method for generating power and making ice by the aid of pressure energy of natural gas of a pipe network and a device. The method includes steps of (1), throttling the high-pressure natural gas by a throttling valve and expanding the high-pressure natural gas by an expansion machine to generate electric power; (2), realizing heat exchange between the expanded natural gas and refrigerant in a first heat exchanger 4, further realizing heat exchange between the natural gas and refrigerant of a second heat exchanger 5, leading the temperature of the natural gas to rise to a range from 2 DEG C to 10 DEG C after heat exchange processes, and delivering the natural gas into the urban gas pipe network; and (3), delivering one channel of the refrigerant in the second heatexchanger 5 into a refrigerant channel of the first heat exchanger after the heat exchange process, compressing another channel of the refrigerant by a compressor, cooling the other channel of the refrigerant by circulating cooling water, throttling and expanding the other channel of the refrigerant, and then delivering the other channel of the refrigerant and the refrigerant in the first heat exchanger after the heat exchange process together to an ice maker 11 to make ice. The method and the device have the advantages that fuel for heating low-temperature natural gas after pressure of the low-temperature natural gas is regulated is saved, operating cost of a natural gas pressure regulating station is greatly lowered, the electric power is obtained, and simultaneously, a large quantity of industrial or edible ice can be produced.

The invention relates to an organic waste gas catalytic combustion device. The organic waste gas catalytic combustion device comprises a waste gas inlet, a purified gas outlet, a catalytic purification device, a hot start wind circulation pipe and an electrical control device, wherein the waste gas inlet is used for inputting the waste gas; the purified gas outlet is used for outputting the purified gas; the catalytic purification device is used for performing catalytic combustion on the waste gas; the waste gas inlet is communicated with the catalytic purification device through a first pipeline; the purified gas outlet is communicated with the catalytic purification device through a second pipeline; the two ends of the hot start wind circulation pipe are communicated with the first pipeline and the second pipeline respectively; the second pipeline is connected with a fan; and the first pipeline, the catalytic purification device, the second pipeline, the hot start wind circulation pipe and the fan form a circulation path. The organic waste gas catalytic combustion device has the advantages of high self-control degree, available waste heat, stable performance, safety, reliability, small volume, light weight, simpleness and convenience in operation, good purifying effect and the like.

The invention relates to a valve rubber compensating type one-way valve, which is provided with a valve rubber extrusion device. When valve rubber is worn or damaged due to other reasons, a section of valve rubber is extruded by the valve rubber extrusion device according to the given amount, and the damaged part is compensated to ensure that the one-way valve normally works. Distance measuring devices are correspondingly arranged on a valve cone and a valve cover. Due to the distance measuring devices, the distance change of the valve cone relative to the valve cover can be observed at any time so as to reflect the wear condition of the valve rubber. The valve cone and the valve cover are prevented from colliding, the service life of the valve cone and a valve seat is effectively prolonged, and the frequency of closing down to replace spare parts is reduced.

The invention belongs to the technical field of sewage treatment, relates to a system and method for concentrated resin water treatment, and in particular relates to a system and method for treatmenton a targeting nitrogen and phosphorus removal resin regeneration waste liquid. The system for treatment on the targeting nitrogen and phosphorus removal resin regeneration waste liquid comprises a resin adsorption tank, a waste liquid tank, a denitrification tank, a sedimentation tank, a high-density sedimentation tank, a sludge tank and a dehydration system. By adopting the system for treatmenton the targeting nitrogen and phosphorus removal resin regeneration waste liquid, nitrogen and phosphorus are firstly effectively enriched, a regeneration waste liquid is treated in combined biochemical and physicochemical treatment modes, and the system has the beneficial effects of being stable in operation effect, high in nitrogen and phosphorus removal efficiency, rapid in reaction speed, highin produced water quality, high in self control degree, small in floor space, capable of effectively solving the problem of secondary pollution of a resin regeneration waste liquid, and the like.

The invention relates to the technical field of oil field evaluation test devices, and concretely relates to a device an a method for evaluating the dynamic scaling and scale inhibition of anan oil field. The oil field dynamic scaling and scale inhibition evaluation device is formed by a deoxidizing device, a liquid conveying unit, a mixing mechanism, an information detecting and recording unit, a rock core displacement dynamic evaluation system, a capillary pipeline dynamic evaluation pipeline and a constant temperature box. According to the evaluation method of the oil field dynamic scaling and scale inhibition evaluation device, under the condition that the field temperature, pressure, flow velocity and different flow state working conditions are simulated in a manner of being most close to the actual conditions of an injecting water reservoir, the scaling induction period time is quickly judged through the change of pressure difference and permeability, and a technical basis is provided for a field water injection scheme; and meanwhile, an effective scale inhibitor and an optimal use concentration are screened out for on-site scale inhibitor quality monitoring, an evaluation means is provided for novel scale inhibitor research and development and mechanism research, and the device is easy to operate, high in automatic control degree and convenient to maintain.

The invention discloses a flue gas purifying system, comprising a heat-cold exchange unit used for cooling flue gas, a flue gas purifying unit and a chemical adding unit used for adding auxiliary agents and reactants into the flue gas purifying unit, wherein the flue gas purifying unit is of a tower shape and comprises a reactor shell; a mixed liquid chamber, a gas chamber, a filtering and treating unit and a demister are arranged in the reactor shell from bottom to top; a gas outlet is formed in the top of the reactor shell; the side wall of the reactor shell is provided with an exhaust gas inlet communicated with the gas chamber, a mixed liquid outlet communicated with the mixed liquid chamber, a spraying liquid inlet communicated with the filtering and treating unit, a temperature controller and a liquid level controller; the exhaust gas inlet is connected with a fan through a pipeline; the fan is communicated with the heat-cold exchange unit through a pipeline; the mixed liquid outlet is provided with a valve; and the spraying liquid inlet is connected with the chemical adding unit through a pipeline and communicated with an external water supply pipeline.

The invention provides a multifunctional self-muscle-stretching and self-massage bodybuilding device which can be used for stretching the muscles and the tendons of the upper body and the legs and massaging the chest and the back and is convenient to use and operate. The multifunctional self-muscle-stretching and self-massage bodybuilding device comprises a machine base; a sitting stool is arranged at the rear portion of the machine base; an upward protruding body is arranged at the front portion of the machine base; a front stool board is arranged on the top of the upper protruding body; a lying board is pivoted to the rear edge of the top of the upward protruding body; the lying board is connected with a vertical swing mechanism; the two sides of the lying board are provided with telescopic rods; the outer ends of the telescopic rods are provided with cup head pins; a turning board is pivoted to the front edge of the top of the upward protruding body; the turning board is connected with a telescopic push rod A; the lower end of the telescopic push rod A is fixed to the machine base; the front of the turning board is provided with a leg muscle stretching board with the board body extending upward; the two sides of the rear portion of the machine base are each in pivot joint with a rotary support swinging in the horizontal direction; the upward-tipping outer ends of the rotary supports are provided with carrier boards; the machine base is provided with a rotary support drive device driving the rotary supports to rotate and swing. The multifunctional self-muscle-stretching and self-massage bodybuilding device is suitable for the muscle-stretching bodybuilding of the upper body and the legs.

The invention discloses a full-automatic energy-saving and pressure-stabilizing device for directly supplementing water from a primary side to a secondary side in a heat exchange station. The full-automatic energy-saving and pressure-stabilizing device comprises a controller, a heat exchanger, a primary side heating network water return pipe and a secondary side heating network water return pipe, wherein a water charging pipe and a water supplementing pipe are arranged between the primary side heating network water return pipe and the secondary side heating network water return pipe, and are connected with the primary side heating network water return pipe through a water entering main pipe and connected with secondary side heating network water return pipe through a water discharging main pipe; a flow detector and a flange ball valve are arranged on the water discharging main pipe; the flow detector is connected with a flow transducer; two stages of turn-off electromagnetic valves are arranged on the water supplementing pipe; an electric adjustment valve or a variable-frequency water supplementing pump is arranged between the two stages of turn-off electromagnetic valves; the primary side heating network water return pipe is equipped with a first pressure transducer; and the secondary side heating network water return pipe is equipped with a second pressure transducer. According to the full-automatic energy-saving and pressure-stabilizing device for directly supplementing water from the primary side to the secondary side in the heat exchange station, a water treatment device and a water supplementing water tank in the conventional system are canceled, so that the equipment of a constant-pressure water supplementing system is greatly simplified; and the area occupied by a heating station is reduced, and the investment is saved.

The invention provides a facility using circulated water for aquaculture. The facility includes the following ponds or groove tanks which are successively connected: an aquatic pond, a nitrogen-reducing groove tank, a bacterial strain pond, and a dissolved oxygen groove tank. The aquatic pond is provided with a separation assembly and an air pipe. The separation assembly includes a fish and shrimp back-up ring and a solid-liquid separation apparatus. The bottom part of the nitrogen-reducing groove tank is provided with an ozone inlet. The bacterial strain pond is in connection to a bacterial strain adding pipeline, and a multi-fiber filter material and a porous filter material are floated in the pond. The dissolved oxygen groove tank is in connection to a venture ejector which has high oxygen concentration. The oxygen concentration input by the air pipe is around 3-9mg/L, and the dissolved oxygen concentration in the dissolved oxygen groove tank can reach 10-20mg/L. According to the invention, the facility can save large amount of water resource, increases survival rate of aquatic products, has high culture efficiency and explicit economic benefits.

The invention discloses an integrated membrane technology treating method for electroplating nickel-containing wastewater. Specifically, the method comprises the following steps: (1) performing pH regulating reaction: adding alkaline into the electroplating nickel-containing wastewater and regulating the pH value of the electroplating nickel-containing wastewater to 4.5-5.5; (2) removing suspended solids, bacteria, viruses, colloids and macromolecules from the wastewater treated in the step (1), thereby keeping the turbidity of the wastewater below 1 and SDI below 5; (3) filtering by adopting a safety filter: pumping the wastewater treated in the step (2) into the safety filter and adding an anti-scaling agent into the wastewater; (4) filtering in a nano-filtration manner; (5) filtering by adopting the safety filter; and (6) filtering by using a reverse osmosis system. After the electroplating nickel-containing wastewater is treated according to the method disclosed by the invention, the produced water can reach the table 3 standard in Electroplating Pollutant Discharge Standard (GB 21900-2008); and meanwhile, the dosage of the drug can be reduced, the sludge quantity is reduced, and the secondary pollution is reduced.