11results about How to "Prevent channeling" patented technology

The utility model provides a modularized fluorine ion exchange column, which adopts a column body structure formed by connecting a plurality of sections of flanges to realize height adjustability and adapt to different fluorine concentration and flow requirements. Spiral flow guide ribs are arranged in the column to guide wastewater to spirally flow, fluid distribution is optimized through centrifugal force, and the fringe effect is reduced; the assembling precision between the columns is ensured through a concave-convex positioning mechanism, and the corrosion resistance is enhanced by matching with a polytetrafluoroethylene lining. The system integrates a water distribution plate and funnel combined structure, realizes flow equalization through groove water distribution holes, eliminates a bias flow phenomenon, and improves the resin utilization rate. And the saturation of the resin can be observed at any time through fluorine ion color-changing exchange resin and an observation window. The resin bracket is of a pull ring type quick release structure, and quick maintenance is achieved through a tap bolt and a sealing ring annular groove. According to the device, through modular combination, flow field optimization and visual monitoring, the fluorine ion deep purification efficiency and the operation convenience are remarkably improved.

The utility model discloses wastewater recycling equipment which comprises a vertical frame, and a lower area for mounting a plurality of groups of water collecting tanks and an upper area for mounting a filter tank are arranged in the vertical frame; a water path assembly is installed outside the vertical frame and comprises a one-inlet and two-outlet front-stage pipeline and a two-inlet and two-outlet rear-stage pipeline communicated behind the front-stage pipeline, and a water pump is correspondingly arranged at the two connecting points of the front-stage pipeline and the rear-stage pipeline. Two paths of output ends of the rear-stage pipeline are communicated with diffusion discs which are positioned in the filter box and are used for dispersing water flow in a one-to-one correspondence manner; the two diffusion discs are distributed at high and low positions, and a filtering piece is laid below each diffusion disc; the lower parts of the filter tanks are communicated with the water collecting tanks through conveying pipelines one by one. The utility model aims to solve the two core technical problems of low efficiency, difficulty in maintenance, poor system reliability and limited processing capacity caused by non-uniform water distribution.

This utility model discloses a telescopic compensation type layered water injection sealing device, which includes a rubber sleeve and a spring. The upper and lower rubber sleeves, installed outside the upper and lower water injection pipes respectively, have hydraulic chambers one and two connected by a connecting hose. A pressure transmission hole in the upper water injection pipe, connected to hydraulic chamber one, is connected to a hydraulic pump on the ground via a hydraulic pipeline. The upper and lower water injection pipes are connected by a telescopic compensation mechanism. The spring is installed between the sealing cylinder and the telescopic sleeve in the telescopic compensation mechanism. The upper water injection pipe, sealing cylinder, corrugated pipe, sealing sleeve, and a fixing ring installed outside the lower water injection pipe and below the telescopic sleeve are sequentially fixedly connected. The lower water injection pipe can move up and down within the telescopic sleeve and the fixing ring. The telescopic compensation mechanism absorbs vibration energy generated during water injection and compensates for sealing gaps. This device is suitable for high-efficiency layered water injection tubing in oilfield development, providing vibration and creep prevention effects.

The utility model belongs to the technical field of alkannin extraction, in particular relates to an alkannin extraction system, and aims to solve the problems of low extraction efficiency and unsmooth liquid drainage caused by difficulty in uniformly and circularly spraying layered materials in a temperature-pressure coordinated and controllable closed environment and easiness in blockage of a liquid outlet at the bottom of a tank in the conventional alkannin extraction device. According to the scheme, the extraction device comprises an extraction tank, a storage screen frame, an electric heating wire, a liquid spraying ring and a liquid spraying pipe, the pressure in the tank is adjustable in a stepped mode through a pressurization assembly, and the temperature in the tank is adjustable in a stepped mode through the electric heating wire; the bottom end of the liquid spraying pipe is connected with a pressing sleeve pipe, the tank bottom is connected with an alignment bottom pipe, the pressing sleeve pipe is movably inserted into the alignment bottom pipe, a pipe body of the pressing sleeve pipe is provided with filter screen holes, a pipe body of the alignment bottom pipe is provided with a liquid passing notch, and the positions of the pressing sleeve pipe and the alignment bottom pipe are adjustable. According to the utility model, efficient extraction and convenient cleaning of alkannin are realized through temperature and pressure stepped cooperative control, internal and external dual-circulation spraying and a tank bottom filtering structure capable of switching an extraction mode and a cleaning mode.

The invention relates to the technical field of industrial wastewater regeneration treatment, and discloses a phosphoric acid wastewater deep purification device based on an adsorption regeneration structure, the phosphoric acid wastewater deep purification device comprises a placing part, the placing part comprises a tank body, the bottom of the tank body is fixedly provided with a supporting seat, and the bottom of the tank body is fixedly communicated with a communicating pipe; and the other end of the communicating pipe is fixedly communicated with an RO membrane tank. The phosphoric acid wastewater deep purification device based on the adsorption regeneration structure can effectively solve the problems that in the prior art, an adsorbent supporting layer of a traditional wastewater purification device is of a fixed plane structure, the straight surface cannot play an effective role in guiding, retarding or dispersing falling wastewater, and consequently the wastewater cannot be effectively purified under the action of gravitational potential energy. The problem that soluble phosphate is difficult to fully intercept due to the fact that a path with the minimum natural selection resistance vertically falls, the phenomena of vertical direct discharge and short flow easily occur, the wastewater purification path is short, the contact time of wastewater and an adsorbent is short and the utilization rate of the adsorbent is low in the prior art is solved.

The invention belongs to the technical field of flue gas purification, and particularly relates to a powder catalyst circulating entrained-flow bed denitration method and equipment which are suitable for low-temperature flue gas, adopt a powder catalyst and realize cyclic regeneration. The method comprises the following steps: spraying a new powdery catalyst and a reducing agent to a mixing section of the elbow flue to be fully mixed with flue gas; in the reaction section of the bent pipe flue, the new catalyst, the reducing agent and the flue gas are subjected to selective catalytic reduction reaction, and NOx in the flue gas is converted into N2 and H2O; and the reacted clean flue gas carries the catalyst to enter the dust removal and recovery mechanism, so that the clean flue gas is separated from the catalyst. The conveying bed process is innovatively adopted, the equipment structure is simple, the system pressure drop is low (smaller than or equal to 1000 Pa), the catalyst particle collision rate is low, efficient circulation and online regeneration of the catalyst are supported, low-temperature efficient denitration can be achieved, and the device has the advantages of being stable in operation, low in energy consumption and easy and convenient to maintain.

The utility model discloses a kind of cooling tower fillings PVC sheet with improved corrugated structure, it is related to cooling tower cooling appliance technical field, including layer by layer stacked cooling plate, the top surface and bottom surface of cooling plate are installed with multiple film-coated strips, and film-coated strip is installed with guiding mechanism and the assembling mechanism of being convenient for cooling plate stacking;The utility model is coated by foaming layer on film-coated strip and cooling plate surface, it is convenient for foaming layer expansion after being heated, on one hand, the contact area of water and air can be increased, on the other hand, when foaming layer expands, surface scale will be extruded, it is favorable to ensure the cleanliness of cooling plate surface, improve cooling speed and cooling effect;Again through the cooperation of first deflector and second deflector, it is convenient for improving the flow speed of air and water, avoid the occurrence of channeling phenomenon, improve the utilization of filler;Finally solve the problem that existing device surface scale leads to poor cooling effect and low filler utilization.

The utility model provides a steam extraction check valve, and belongs to the technical field of check valves, the steam extraction check valve comprises a valve body, the valve body comprises an inlet flow channel, a valve cavity and an outlet flow channel, a valve rod is transversely fixed in the valve cavity, a valve clack is rotatably arranged on the valve rod, a mounting groove is formed in one end, close to the valve cavity, of the inlet flow channel, and a base ring, a valve seat ring and a fixing ring are arranged in the mounting groove; an elastic sealing ring is arranged between the base ring and the valve seat ring, the outer ring of the elastic sealing ring is closed, the inner ring of the elastic sealing ring is provided with an opening gradually expanding towards the center of the mounting groove, the two side walls of the opening abut against the base ring and the valve seat ring respectively, and an elastic piece abuts against the interior of the opening. The elastic sealing ring with the opening is arranged between the base ring and the valve seat ring, impact energy generated when the valve clack is closed can be absorbed, meanwhile, the elastic sealing ring in the special shape can form more reliable sealing with the two side portions under medium impact, and medium fluid channeling is avoided.

The invention provides high-speed mixed bed equipment for fine treatment of condensed water of a thermal power plant, and belongs to the field of water treatment of the thermal power plant, the high-speed mixed bed equipment comprises a regeneration system, a control system and a high-speed mixed bed, the high-speed mixed bed is communicated with the regeneration system, and the regeneration system and the high-speed mixed bed are both electrically connected with the control system. According to the high-speed mixed bed equipment, the water distribution uniformity is remarkably improved, so that the utilization rate and the periodic water control amount of resin are remarkably improved, and the stability of the effluent quality is improved; the resin abrasion is reduced, the service life of the resin is prolonged, and the operation cost is reduced; the regeneration efficiency is improved, the consumption of a regeneration agent is reduced, and the discharge of regeneration wastewater is reduced; the equipment cost and the maintenance workload are reduced; the operation flexibility and reliability of the system are improved; and a modular design is adopted, so that capacity expansion and transformation are facilitated.

This disclosure relates to the technical field of fillers. One embodiment of this disclosure provides a high specific surface area and high film-forming PTFE filler, comprising: a plurality of laying frames, a connecting assembly disposed between the laying frames, a filler treatment assembly disposed in the laying frames, the filler treatment assembly including an outer wall inserted into the laying frames, an inner wall disposed within the outer wall, a plurality of outer attachment plates connected between the inner and outer walls, a plurality of outer rings fitted inside the outer attachment plates, a plurality of inner attachment plates disposed around the inner surface of the inner wall, a plurality of inner rings fitted inside the inner attachment plates, and the connecting assembly including a plurality of connecting ears disposed on both sides of the laying frames, a splicing rod inserted into the connecting ears, and a plurality of limiting rings fitted on the splicing rod. This technical solution solves the technical problems of poor performance and inconvenient laying in the prior art.

This utility model relates to the field of waste heat recovery technology for air compressors, and discloses a waste heat recovery system for air compressors. The heat exchange medium inlet of the heat exchange tube bundle on the waste heat recovery heat exchanger is connected to the exhaust port of the air compressor body. The heat exchange tube bundle is spiral-shaped and has a horizontal U-shaped structure. The inlet and outlet of the heat medium on the waste heat recovery heat exchanger are connected to the outlet of the circulating water pump and the inlet of the heat storage tank, respectively. The waste heat recovery heat exchanger is divided into upper and lower layers by a partition component. Each of the upper and lower heat exchange chambers is equipped with baffles that match the spiral direction of the heat exchange tube bundle. The heat exchange tube bundle increases the contact area and contact time between the heat medium and the heat exchange medium, while the baffles guide the flow of the heat medium and increase the heat exchange contact time within the waste heat recovery heat exchanger. Through the orderly flow channel, baffles, and spiral tube bundle design, heat exchange efficiency is improved and the medium contact time is extended, achieving energy saving, consumption reduction, and space saving.