The invention discloses a method and a device for eliminating white smoke of a wet-containing flue gas and belongs to the technical field of gas or steam separation. The method comprises the followingsteps: carrying out cooling spraying on a flue gas after desulfuration, mixing a wet-containing flue gas with cooling mist in a countercurrent manner till the wet-containing flue gas is cooled to a cooling water temperature approximately; carrying out imbibitions demisting on the wet-containing flue gas after cooling spraying, and enabling the flue gas to sufficiently contact the surface of a hydrophilic porous membrane in a membrane demister so as to obtain a low-temperature saturated gas; further heating the low-temperature saturated gas in the step II by using a flue gas heater, and discharging an unsaturated flue gas through a chimney, thereby eliminating white smoke. By adopting the method, the flue gas after desulfuration is fed into a spraying tower, a cooling spraying device is arranged at the upper part inside the spraying tower, and a tower disc is arranged at the lower part of the spraying tower; the cooling spraying device is connected with the membrane demister, the membrane demister is connected with the chimney, and a secondary glue gas heater is arranged between the outlet of the membrane demister and the inlet of the chimney. By adopting the method, a 'white smoke' phenomenon caused when flue gases are discharged can be effectively eliminated, and pollutants such as dust and aerogel can be deeply removed.

Method and device for eliminating white smoke of wet-containing flue gas

The invention discloses a stable filtering centralized water supply system. The stable filtering centralized water supply system comprises an electric control device, a water inlet manifold, a water outlet manifold and a plurality of filters; water inlets of the filters are connected with water inlet branch pipes correspondingly, the water inlet branch pipes are connected with the water inlet manifold and provided with water inlet electromagnetic valves; reverse washing drain pipes are provided with reverse washing drain electromagnetic valves; water outlets of the filters are connected with water outlet branch pipes correspondingly, and the water outlet branch pipes are provided with water outlet electromagnetic valves; the water outlet manifold is connected with a water purifying box; and the inner surface of a filter medium is connected with a barrel-shaped center framework, and the interior of the center framework is uniformly provided with a plurality of ultrasonic transducers forimproving the filtering precision and delaying filtering medium blockage in a buried mode. The invention further discloses a corresponding centralized water supply method. According to the stable filtering centralized water supply system and the centralized water supply method, continuous water supply can be achieved, the filtering water supply process is not interrupted during sewage disposal, the working pressure of the filtering medium is stable, and the blockage phenomenon is not prone to occurring to the filtering medium while the filtering precision is improved.

Stable filtering centralized water supply system and centralized water supply method

The invention discloses a standing wave differential electrospinning device. The standing wave differential electrospinning device comprises signal generators, a receiving plate, fiber bundles, a direct-current high-voltage electrostatic generator, a standing wave auxiliary device, spinning strings, a liquid storage groove, a standing wave generator, a gas flow auxiliary machine, liquid supply tanks, gas flow passages and vent holes. A frequency generator is connected with the standing wave generator, the spinning strings are fixed to the two side wall faces of the liquid storage groove, one end of each spinning string is connected with the standing wave generator, and the other end of each spinning string is connected with the high-voltage electrostatic generator; the fiber receiving plate is placed over the liquid storage groove, one side of the receiving plate is grounded through a wire, and the fiber bundles are generated from wave peak regions of the spinning strings. The standingwave differential electrospinning device has the advantages that through the standing wave generator and a frequency adjuster, electrospinning is carried out by controlling the shapes and number of string standing waves, a large number of Taylor cones are easily formed at the standing wave peaks of the spinning strings, the threshold voltage of electrospinning is reduced, and the operation safetyin the spinning process is improved. The cost is low, the operation is simple, and the standing wave differential electrospinning device can be used for industrial production of nanofibers.

Standing wave differential electrospinning device

The invention relates to the field of gas power generation, in particular to a gas purification device for gas power generation The technical problem to be solved by the invention is to provide a gaspurification device for gas power generation The gas purification device for gas power generation comprises an anti-blocking return transportation device, a gas drying and purifying device, a hydrogen sulfide purification device, a support and a flow meter; the gas drying and purifying device is arranged at the lower left end of a biogas digester, and a valve top end is connected with the anti-blocking return transportation device; and the left lower end of the anti-blocking return transportation device is connected with the hydrogen sulfide purification device In order to solve the problems that when biogas in an existing biogas digester is extracted for use, the biogas and fermented materials which become extremely fine after being fermented are often extracted into a gas channel together and flow to a combustion outlet along with biogas flow The gas purification device can achieve the effects of rapidly and fully utilizing a purifying agent to purify hydrogen sulfide gas, rapidly dehydrating in a double-main-body and double-mode mode, preventing the device from being blocked and recycling raw materials at the same time

Gas power generation gas purification device

The invention relates to an ultrasonic wave environment purifier including: a case, at least one filter screen plate, and ultrasonic transducers; a purification chamber is formed in the case; an air inlet and an air outlet are respectively disposed at the two ends of the case; the filter screen plates are vertically installed in the purification chamber in order; the ultrasonic transducers are respectively on the side edges of the filter screen plates so that the filter screen plates are subjected to ultrahigh-frequency cutting vibration filter movement; a water curtain slot and a water inletjoint are arranged above each filter screen plate and spray water to form a water curtain on each filter screen plate; a water outlet hole is formed in the bottom of the case The environment purifieris free of replacement of filter screens and is zero-consumption, wherein the filter screens have self-cleaning function, so that the filter screens are free of cleaning and maintenance The environment purifier can work uninterruptedly for long period The environment purifier is high in air purification degree and purification efficiency, is simple in structure, is easy to achieve, is reliableand durable and is suitable for air purification under different environments

Ultrasonic wave environment purifier

The invention discloses a mining nanofiber membrane wet type filtering dust remover which mainly comprises a dust remover shell body, an atomizing assembly, a filtering assembly, a methane adsorbing device, an axial-flow fan, a water pressure uniform distribution cavity and a sewage tank, wherein the atomizing assembly, the filtering assembly, the methane adsorbing device and the axial-flow fan are sequentially arranged in the dust remover shell body in the direction from an inlet to an outlet; the atomizing assembly is fixed to a bottom plate of the dust remover shell body and is sequentiallyin threaded connection with the water pressure uniform distribution cavity, a pressure gauge and a pressure adjusting valve; the filtering assembly is composed of a nanofiber membrane layer, a substrate layer and a geotechnical grid-shaped outer frame; the nanofiber membrane is prepared from a hydrophobic material; formwork hot pressing with micrometer-scale protrusions and vacuum plasma are utilized to perform surface hydrophobic modification treatment. The dust remover achieves surface filtering of wet-type dust removal, solves the difficult problem that a filter screen of the wet-type filtering dust remover is prone to being plugged, has the advantage of high filtering efficiency, meanwhile can absorb methane in air flow and eliminates hazards of the methane to safe operation of the axial-flow fan.

Mining nanofiber membrane wet type filtering dust remover

The invention discloses a wet dust collector with a high-frequency vibration filter screen and belongs to the field of air filtration. The wet dust collector with the high-frequency vibration filter screen mainly comprises a dust collector housing, a spray component, an excitation device, a filter component, a dewatering component, an axial flow fan and the like. The spray component, the filter component, the dewatering component and the axial flow fan are sequentially mounted in the dust collector housing in the direction from the inlet to the outlet. A filtering filter element of the filtercomponent is obtained by laminating fiber bundles with nano-fiber whiskers after being subjected to hydrophobic treatment. In the process of filtration, a high-frequency vibration source excites the filter component, so that the fiber whiskers vibrate at high frequency in an equilibrium position to enhance the contact probability among the whiskers, dust and water mist, so as to improve the capture efficiency of fine dust. Furthermore, the vibration of the fiber bundles and the fiber whiskers effectively prevents the stagnation of dust-containing water droplets inside the filter component to accelerate the flow of the dust-containing water droplets so as to solve the blocking problem of the filter component. The dust collector has the advantages of high dust removal efficiency, difficultyin blocking of wire meshes and low pressure loss.

Wet dust collector with high-frequency vibration filter screen

The invention discloses a mechanical wave intervention electrostatic spinning device which mainly comprises a direct current high voltage electrostatic generator, a vibration exciter, a liquid storagegroove, a take-up device, an electrode plate, a conductive plate, an eccentric block, a flowmeter, a pump, a liquid supply groove, a signal generator and a power amplifier. The liquid storage grooveis formed horizontally, the conductive plate is attached to the two opposite inner side faces of the liquid storage groove, and the eccentric block is fixed to the outer side; the vibration exciter isconnected to the outer side of the liquid storage groove; the signal generator is connected with the power amplifier and connected with the vibration exciter in parallel; the vibration exciter transmits signal waves to a spinning solution inside the liquid storage groove, the liquid is excited to generate periodic fluctuations, wave intervention generates standing waves, and the higher the amplitude is, the more easily the spinning solution at the wave crest is stretched into filaments under an electric field; the signal generator is regulated to output different signals, so that the liquid inside the groove performs periodic resonant fluctuations of different types. By adjusting different frequencies and amplitudes, the magnitude of electric field force and other conditions, waveform, wavelength and other parameters of the spinning solution inside the groove can be controlled, and then the fiber quality and morphology are controlled.

Mechanical wave intervention electrostatic spinning device

The invention provides an acoustic standing wave assisted electrostatic pinning device. The device mainly comprises an air pipe, a liquid supply tank, a thin liquid layer, foam particles, a conductiveplate, a bracket table, a high voltage static generator, an air flow passage, a loudspeaker, a seal cover, a wrap-up and a plate electrode, wherein the conductive plate is fixed at the bottom surfaceof the seal cover, the conductive plate is provided with a layer of thin solution and a large number of foam particles, the bracket table is placed at the right side of the bottom surface of the sealcover, the loudspeaker is placed on the bracket table, and the high voltage static generator is placed in the bracket table. When spinning is carried out, a certain frequency of noise is generated from the loudspeaker, so as to make the foam particles vibrate in a shape of standing wave. After the foam particles are dipped in spinning solution, the foam particles are simultaneously affected by anelectric field force and a vibration force, thereby reducing the voltage required for the formation of Taylor cones on the surfaces of the foam particles, and the beating state of the foam particlescan be changed by changing the frequency and volume of the loudspeaker, thereby changing the quantity and quality of a jet flow. The acoustic standing wave assisted electrostatic pinning device has the advantages that the cost is low, acoustic standing wave is used for spinning, the energy consumption is low, and the acoustic standing wave assisted electrostatic pinning device is an ideal device for industrialization.

Acoustic standing wave assisted electrostatic pinning device

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