42 results about "Plate column" patented technology

The utility model relates to the technical field of coal gasification high-pressure flash tanks, in particular to a coal gasification high-pressure flash tank which comprises a tank body, a first water inlet, a second water inlet, a flushing pipe, a liquid outlet, a steam outlet, a plurality of tongue-shaped tower plates, a plurality of sieve plate type tower plates, a plurality of connecting plates, swirl vanes, a plurality of downcomers and baffle plates, according to the high-pressure flash tank, the problems that in the flash evaporation process of an existing high-pressure flash tank, scaling is prone to occurring in an S-shaped baffle plate, a guide plate is prone to being damaged, and flash evaporation steam carries dust and liquid seriously are solved, the baffle plate is not prone to being blocked when the high-pressure flash tank carries out flash evaporation, the phenomenon that the flash evaporation steam carries the dust and the liquid is reduced, and the flash evaporation efficiency is greatly improved.

The invention provides zirconium and hafnium separation equipment and method for a rectification pyrogenic process, and relates to the technical field of rectification pyrogenic processes. The equipment comprises a first plate tower, a second plate tower, a fused salt storage tank, a reboiler, a waste salt treatment system, a feeding device, a filler stripping tower, a nitrogen generator, a condenser and a cooling separator. The first plate tower and the second plate tower run in parallel and are connected through a material circulating pipeline, so that circulating separation of incompletely separated components is realized. The reboiler provides heat for the two towers, and the filler stripping tower performs stripping separation by using nitrogen. According to the method, the efficiency and purity of zirconium and hafnium separation are remarkably improved through double-tower synergistic separation, dynamic pressure regulation and magnetic field-assisted separation technologies, and meanwhile, energy consumption and environmental pollution are reduced through heat integration and waste salt treatment. The equipment is suitable for a plateau low-pressure environment, has a remote monitoring function, is convenient to operate and stable in operation, and meets strict requirements of nuclear-grade zirconium and hafnium-rich substances.

The application discloses a novel high-efficiency large-flux three-dimensional mass transfer tray and relates to the technical field of mass transfer separation towers, comprising a horizontal plate and a three-dimensional cap, wherein a plurality of air holes are formed in the lower part of each cap as gas inlets; the three-dimensional cap is divided into upper and lower two parts of a lifting section and a shunt section; the bottom of the wall surface of the lifting section is provided with a liquid hole as a channel for liquid to enter the three-dimensional cap; and the shunt section is provided with a stepped baffle structure. The novel high-efficiency large-flux three-dimensional mass transfer tray can strengthen gas-liquid mixing and effectively control entrainment of mist, and will help to simultaneously realize high efficiency and large flux of the plate tower.

The utility model discloses a plate-type tower plate with a convenient dismounting device, and relates to the field of plate-type towers of chemical production equipment. The screening tower plate mechanism is arranged in the tower body of the plate tower, and the screening tower plate mechanism is used for enabling gas to penetrate through the holes to be in uniform and efficient contact with liquid; according to the utility model, the four groups of first sliding plates and second sliding plates are driven to synchronously slide through the electric telescopic rod of the tower plate quick assembling and disassembling mechanism, and the inner supporting plate is driven to radially expand or contract, so that quick assembling and disassembling of the screening tower plate mechanism are realized; meanwhile, when the inner supporting plate is expanded, multipoint uniform supporting is formed through limiting cooperation of sliding grooves in the two sides of a straight sliding groove and sliding blocks, looseness or deformation caused by uneven stress on one side is avoided, reliability and impact resistance of mechanical locking are ensured, the disassembly and assembly efficiency and fixing stability are greatly improved, and the inner supporting plate is suitable for frequent maintenance or high-load industrial scenes.

The present invention provides a tower plate guide plate, which relates to a plate tower structure of a distillation tower and an absorption tower. The technical solution provided by the present invention is to reduce the plate pressure drop and improve the plate efficiency. The present invention changes the gas flow channel to optimize the flow state and reduce eddy currents by setting a drainage channel, thereby achieving the purpose of reducing the plate pressure drop. The technical solution has a simple structure and is easy to manufacture and install.

The present invention discloses a plate column for high-speed gas-liquid mass transfer, which comprises a column body. An air outlet pipe and a discharging pipe are respectively arranged at the top and bottom of the column body. A feed pipe is arranged in the middle of the circumferential outer wall of the column body. An air inlet pipe is arranged on the outer wall of one side close to the bottom of the column body, and a reflux pipe is arranged on the outer wall of one side close to the top of the column body. A mass transfer assembly is arranged inside the column body, and the mass transfer assemblies are equidistantly distributed inside the column body. The mass transfer assembly comprises a tray arranged inside the column body. In the present invention, gas-liquid staged contact heat transfer and mass transfer between materials can be realized, meeting the separation requirements of people for different materials. After the gas phase rotates the dispersing tablets by contacting the first arc-shaped plate, the gas phase will rise along the outer wall of the second arc-shaped plate, so that a good guiding effect can be exerted on the gas phase, enabling the gas phase to fully contact and transfer mass with the liquid phase sliding down along the inner wall of the adjusting cylinder.

The utility model relates to extruding granulator technical field discloses a kind of efficient composite double-step extruding granulators for cable sheath preparation, including support base, the top right side of support base is fixedly connected with support, the top of support is fixedly connected with direct current motor one, the left side of support top is fixedly connected with stirring drum one, the outer wall top of stirring drum one is communicated with heating sleeve, the left end of stirring drum one is communicated with mixing cylinder, the output end of stirring drum one is fixedly connected with auger and is penetrated through stirring drum one, and the top middle part of mixing cylinder is fixedly connected with servo motor. In the utility model, by conical filter screen, impurities and unsolved raw materials are removed, the servo motor is started, the hole scraping plate column rotates, impurities are thrown out of mixing cylinder, at the same time, stirring paddle rotates, to the raw material after mixing filtration and newly added raw material, to ensure that product mixes evenly, without mixing phenomenon.

The present invention belongs to the technical field of chemical distillation, and mainly relates to a distillation tower for electron donor production, including a tower body with a distillation chamber inside, a central axis and a distillation unit in the distillation chamber, and the distillation unit includes a transmission shaft, a sieve plate type tower plate, an adjustment plate and a gas gathering sleeve; the transmission shaft is arranged outside the central axis, the sieve plate type tower plate is fixed on the inner wall of the distillation chamber, the overflow end of the sieve plate type tower plate is connected with an overflow pipe, and a through hole is arranged on the sieve plate type tower plate; the adjustment plate is arranged below the corresponding sieve plate type tower plate, and is assembled in the distillation chamber by rotating around the axis of the central axis, and an adjustment hole is arranged on the adjustment plate; the gas gathering sleeve is arranged below the adjustment plate; an adjustment member is arranged in the gas gathering sleeve, and a first transmission structure is arranged between the transmission shaft and the adjustment member. When the gas flow rate is too small or too large, the first transmission structure drives the adjustment plate to rotate to adjust the overlapping area of ​​the through hole and the adjustment hole to prevent more leakage and reduce the phenomenon of liquid foam entrainment.

The utility model belongs to the technical field of air dissolving devices, and particularly relates to an external jet air dissolving device which comprises a tank body, connecting structures installed on the outer surface and inside the tank body, an air dissolving structure connected to the middle of the left side of the tank body, and a cooling structure connected to the right side of the tank body. A liquid injection pipe is installed in the middle, close to the top end, of the right side of the cooling box, a cold guide plate is connected to the bottom face of the refrigerator, an asynchronous motor is installed in the middle of the bottom face of the cooling box, and the output end of the asynchronous motor is connected with an impeller. According to the external jet flow gas dissolving device, the refrigerator is used for refrigeration, cooling capacity conduction is conducted through the cold guide plate, the disc column, the cold guide column and the threaded column, so that the water temperature can be effectively reduced, dissolution of gas and liquid is better facilitated, the asynchronous motor is started to drive the impeller, cooling liquid in the cooling box can be stirred, and the cooling capacity transfer effect is better.

The utility model relates to ammonia gas absorption technical field discloses high -efficient ammonia gas absorption device of plate type tower structure replacement padding layer, including padding absorption tower, the outside front side fixed connection of padding absorption tower has waste gas entrance, the outside right side fixed connection of padding absorption tower has the water tank, the outside back fixed connection of water tank has the pump body, the output fixed connection of pump body has the water pipe no.

The utility model relates to the technical field of feeding, in particular to an automatic veneer feeding device. The automatic single plate feeding device comprises a plate placing frame, a guide cavity penetrating through the bottom plate is formed in the bottom of the plate placing frame, and plate outlets are formed in the front plate face and the rear plate face of the plate placing frame. A feeding assembly used for automatically conveying the single plates is arranged at the bottom of the plate placing frame. According to the automatic veneer feeding device, manual carrying is not needed, the problems that manual carrying is needed and efficiency is low in the prior art are solved, meanwhile, the overall structure is small and exquisite, the adjusting studs in threaded connection are arranged on the pushing plate columns, the extending height of the adjusting studs can be adjusted according to the thickness of veneers, and the veneer feeding efficiency is improved. And the height of the adjusting stud screwed out of the push plate column is the same as the thickness of the veneer, so that the veneer feeding device can be suitable for feeding various veneers with different thicknesses.

This application provides a sieve tray distillation column for hydrazine hydrate purification, comprising a column body, a reboiler, a condenser, and a multi-layer tray assembly arranged in parallel within the column body. The tray assembly includes an upper tray and a lower tray arranged in parallel. The upper tray has several upper overflow holes, and the lower tray has several lower overflow holes directly opposite the upper overflow holes. Each lower overflow hole has a cap, and the sidewall of the cap has vent holes. This sieve tray distillation column for hydrazine hydrate purification uses a tray assembly instead of a traditional single tray. The liquid phase falls from the upper overflow holes of the upper tray onto the caps of the lower tray, forming a liquid film. The gas phase passes through the caps from the lower overflow holes of the lower tray and comes into full contact with the liquid film. The contact time and area between the liquid and gas phases are significantly greater than the contact area between the liquid and gas phases in existing sieve tray distillation columns, thereby improving purification efficiency.

The invention relates to the technical field of production of dimethyl maleate, and discloses a device and a method for preparing dimethyl maleate. Comprising the following steps: (1) introducing a first raw material containing first liquid methanol and maleic anhydride into a plate tower reactor for first reaction to obtain a first liquid-phase product; in the process system of the first reaction, the molar ratio of the cyclically refluxed methanol to the first liquid methanol is (0.2-0.5): 1; (2) introducing second liquid methanol and the first liquid-phase product into a catalytic distillation tower reactor containing a catalyst, and carrying out a second reaction to obtain a second liquid-phase product; controlling the water content in a gas phase in a catalytic distillation tower in a reaction system in which the second reaction is carried out to be not higher than 30wt% through methanol steam stripping; and (3) carrying out refining treatment on the second liquid phase product to obtain dimethyl maleate. The purity of the dimethyl maleate product obtained in one pass by the method provided by the invention can reach 99% or above.

The tray connecting device comprises a plate-type tower main body, tray main bodies distributed at equal intervals are arranged in the plate-type tower main body, a positioning pipe is fixedly arranged in the center of the top of each tray main body, and sliding rods are inserted into the inner walls of the two ends of each positioning pipe. Limiting rings are fixedly arranged on the outer walls of the two sliding rods, the outer walls of the adjacent ends of the two sliding rods are sleeved with compression springs, and a fixing rod is fixedly arranged at one end of the top of each sliding rod. The pull rod arranged at the top of the positioning pipe is controlled to move towards the close side, the pull rod drives the sliding rod to retract into the inner wall of the positioning pipe through the fixing rod, the sliding rod is moved out of the inner wall of the positioning pipe, and the tray main body is moved out of the inner wall of the plate type tower main body; only one limiting hole is formed in the tray main body and slides with the limiting insertion rod in the plate-type tower main body, so that the tray main body cannot be clamped in the plate-type tower main body.

The invention discloses a teaching plate tower fluid mechanics demonstration experiment device in the field of chemical reaction equipment. The teaching plate tower fluid mechanics demonstration experiment device comprises a cylinder body, a tower tray supporting piece, a tower tray, a pipeline, a fan, a water pump and a reducing flange, the tower tray supporting piece is fixedly mounted in the inner wall of the cylinder body and comprises an overflow weir, a downflow plate, a liquid sealing disc, a supporting ring, a supporting plate, a supporting rib plate and a liquid receiving disc; the tower tray comprises a cap hood and a tower tray plate; the cap hood consists of a separating plate, a spraying plate, an end plate and a rib plate; according to the invention, visual demonstration of the hydromechanics phenomenon is realized; a clear and stable liquid flow path is constructed by components such as an internal overflow weir and a downflow plate; due to the unique lateral spraying cap hood structure, gas-liquid mixing is enhanced, the mass transfer efficiency is remarkably improved, and entrainment is effectively restrained; the system not only supports the replacement of key parts and the online regulation and control of parameters, but also enables students to observe typical mass transfer details in real time, and greatly enhances the intuition, flexibility and scientific research value of teaching.

The application discloses a solar energy driving carbon-based raw material gasification column plate type reactor and relates to the technical field of solar energy thermochemical gasification, which comprises a reactor and a heat storage circulating device, a plurality of heat storage cavities and a plurality of gasification cavities are alternately arranged in the reactor, the heat storage cavities and the gasification cavities are connected through column plates, the heat storage circulating device is connected with a solar energy collecting device, the heat storage circulating device is penetrated through the outer wall of the reactor through flow guide pipes at two ends and is connected with two ends of the heat storage cavities, one end of the gasification cavity is provided with a synthetic gas outlet, and the other end is provided with a gasification agent inlet. The solar energy collecting device and the heat storage circulating device are used to realize uniform temperature distribution in the reactor; the column plates are arranged to effectively reduce the radial temperature gradient of the reactor and increase the reaction rate.

The present application relates to natural gas dehydration technical field, specifically to a kind of composite flow channel plate column for natural gas deep dehydration, including tower body, the lower part of tower body is connected with wet gas import, the top of tower body is connected with dry gas outlet and dehydration liquid import, and the bottom of tower body is connected with waste liquid outlet;Tower body is provided with fine dehydration structure, plate dehydration structure, condensing structure and cyclone dehydration structure from top to bottom in it;Fine dehydration structure is located between dry gas outlet and dehydration liquid import, and supply temperature structure is arranged at fine dehydration structure;Cyclone dehydration structure is set as cyclone cylinder, and water vapor condensation beads are separated by mist dehydration liquid centrifugation;Condensing structure includes condensing pipe, carries out condensation dehydration, and plate dehydration structure includes hole plate obliquely arranged in tower body, increases the contact area of natural gas and dehydration liquid;Fine dehydration structure utilizes adjacent hydrophilic plate to form tower body space, for absorbing smaller water molecule.The present application solves the problem that deep dehydration cannot be realized while reducing regeneration energy consumption in natural gas dehydration.

The utility model discloses a bubble cap, a tray and a plate tower. The bubble cap comprises a bubble cap and a riser arranged in the bubble cap, wherein the bubble cap and the riser are coaxially arranged; the bubble cap comprises a hollow cavity formed in the bottom and an air blocking cap coaxially arranged above the hollow cavity, and an opening of the air blocking cap faces downwards. The diameter of the hollow cavity is larger than that of the gas blocking cap so as to form an external boss, and the upper surface, covered by the gas blocking cap, of the hollow cavity is provided with an opening, so that the internal space of the hollow cavity is communicated with the gas blocking cap; annular space flow channels are formed between the gas rising pipe and the gas blocking cap and between the gas rising pipe and the hollow cavity and used for gas circulation; a hole channel is vertically formed in the upper surface of the boss and used for gas circulation. The plate type tower adopting the bubble cap has the advantages in the aspects of improving the production capacity, expanding the operation flexibility, improving the gas phase distribution and the like.

The utility model relates to a self-adjusting type vertical sieve-plate tower, which comprises a tower plate, a gas lifting hole positioned on the tower plate and a cap hood sleeved on the gas lifting hole, a through hole for liquid materials to enter is further arranged on the cap hood, and a valve for shielding the through hole is hinged on the inner side of the cap hood. According to the preferable scheme, during use, steam enters the cap cover from the steam rising holes and drives liquid materials to flow upwards for heat exchange and mass transfer, when the flow of the steam is large, the liquid materials are driven to be sprayed out from the open holes in the cap cover, when the flow of the steam is increased, part of the liquid materials enter the cap cover through the through holes, and when the quantity of the steam is increased, the part of the liquid materials enter the cap cover through the through holes. The force of liquid materials pushing the valve is small, and the opening angle of the valve is small, so that the amount of the liquid materials entering the cap hood is small, when steam is increased greatly, the force of the liquid materials pushing the valve is large, the opening angle of the valve is large, the amount of the liquid materials entering the cap hood is large, waste is reduced, the heat exchange efficiency is improved, and the heat exchange efficiency is guaranteed.

The invention is applicable to the field of natural gas decarburization equipment, and provides a plate tower for natural gas decarburization and an energy-saving control method thereof.The plate tower comprises a tower body, and a solution outlet and a gas outlet are formed in the top and the bottom of the tower body respectively; a solution inlet and a gas inlet are respectively formed in the side parts of the top end and the bottom of the tower body; a plurality of layers of tower plate assemblies are uniformly and vertically distributed in the tower body; the tower plate assembly comprises rafts mounted on the inner wall of the tower body, and a liquid accumulation cavity is formed between every two adjacent rafts; a downcomer is arranged on the raft plate; an overflow weir higher than the raft plate is arranged at the top of the downcomer; valve plates are uniformly distributed on the raft plate; a downcomer valve which can be controlled to be opened and closed is mounted at the bottom of the downcomer; and a liquid storage disc capable of storing a solution is arranged on the raft plate. In this way, the overall operation economical efficiency and environment friendliness can be met; the problems that an existing decarburization tower is high in energy consumption in the starting process, low in solution utilization rate and incapable of meeting the green energy requirement are solved.

The invention belongs to the technical field of petroleum downhole equipment, and relates to a low-melting-point metal melting oil pipe plugging tool. The tool is composed of a cable, a sealing column, a clamping claw, a pressing nut, a releasing inner barrel, a shear pin, a releasing outer barrel, a wiring module, an elastic centralizer, an upper connector, a storage barrel, a protection barrel, a heating module, a cable protection barrel, low-melting-point metal, a lower connector, a firing line, a piston barrel, a fusing column, a solid medicament, a piston column, an elastic piece clamping column, a push rod, a sliding ring, a bearing disc blade and a spring. And a receiving disc column. When in use, the tool is lowered to a specified position of an oil pipe to be plugged through a cable. The wiring module is connected with a firing line in the piston cylinder. After the solid medicament is ignited, high-temperature and high-pressure gas is generated, the fusing column in the middle is rapidly fused, the piston column is pushed to move downwards, and the gathering elastic piece is extruded to clamp the column. The spring releases and pushes the slip ring to move upwards. And the blades of the receiving disc are expanded through the push rod. And then the heating module is electrified through the wiring module, and the low-melting-point metal is heated and melted to be in a liquid state. And the liquid metal is gradually cooled and solidified to form a compact metal plug to plug the oil pipe. The plugging tool is reasonable in design, easy to operate and good in plugging effect.

The utility model relates to the technical field of building equipment, and discloses a concrete pouring hopper which comprises a shell, a plurality of supporting columns are fixedly connected to the interior of the shell, rotating wheel motors are fixedly connected to the interiors of the supporting columns, a water conveying shell is fixedly connected to the top ends of the rotating wheel motors, and a water conveying rotating wheel is rotationally connected to the interior of the water conveying shell. The output end of the top end of the rotating wheel motor is fixedly connected to the bottom end of the water conveying rotating wheel, the output end of the bottom end of the rotating wheel motor is fixedly connected with a water outlet shell, the rear end of the water outlet shell is fixedly connected with a water conveying pipe, and the front end and the rear end of the water outlet shell are fixedly connected with fixed scraper plate columns. According to the utility model, the notch of the water conveying rotating wheel rotates to drive water to enter the water passing pipe, so as to control the amount of the water and clean the interior of the water, thereby preventing the blockage of the outlet of the hopper, the manual cleaning and the time and labor waste, saving the cleaning time, saving the time and the labor, and improving the working efficiency.

The utility model discloses an easy-to-disassemble portable house, belongs to the technical field of easy-to-disassemble portable houses, and solves the problem that the portable house is inconvenient to disassemble. Comprising a floor body, multiple sets of clamping grooves are formed in the upper surface of the floor body, the outer surfaces of the clamping grooves are slidably connected with disassembling and assembling mechanisms, the outer surfaces are in threaded connection with adjusting mechanisms, the disassembling and assembling mechanisms comprise limiting columns slidably connected to the outer surfaces of the clamping grooves, and the outer surfaces of the limiting columns are fixedly connected with supporting columns; the outer surface of the supporting column is slidably connected with a clamping plate column. By means of the sliding connection mode of the clamping grooves and the limiting columns and the adjusting mechanism in threaded connection, complex tools are not needed during disassembly, operation is easy and convenient, the disassembly and assembly process is rapid and efficient through the design of the limiting rods, the clamping plates, the binding ropes and other components, the labor cost and the time cost are greatly saved, and turnover use of the portable house is facilitated.

A concrete-filled steel tube column according to one embodiment comprises: a polygonal plate column in which an internal space into which concrete is poured is formed; a center member provided in the internal space in the longitudinal direction of the plate column; and a reinforcing steel bar fixing member provided between the plate column and the center member, a plurality of reinforcing steel bars being disposed in the internal space adjacent to corners of the plate column, the reinforcing steel bar fixing member being formed in an octagon, and at least two sides of the reinforcing steel bar fixing part are fixed to the central part to fix the positions of the plurality of reinforcing steel bars.

The utility model discloses an automatic cleaning device of cross flow plate tower, including the cylindrical barrel, the hollow transmission shaft is arranged in the cylindrical barrel vertically, is provided with the drive arrangement on the hollow transmission shaft upper end, the hollow transmission shaft lower extreme detachably is provided with the hollow stirring shaft, and the hollow stirring shaft sets up a plurality of rotary cleaning mechanisms from top to bottom in proper order, and each rotary cleaning mechanism includes a plurality of cleaning spray pipes, and the cleaning spray pipe includes first branch pipe and second branch pipe, and first branch pipe and second branch pipe staggered setting are set up with a plurality of first cleaning liquid injection through -hole on first branch pipe, and are set up with a plurality of second cleaning liquid injection through -hole on second branch pipe, the drive arrangement drives the rotation of hollow transmission shaft, and the hollow stirring shaft is linked with hollow transmission shaft, and the hollow stirring shaft drives first branch pipe and second branch pipe rotation simultaneously. The above technical scheme, the structure design is reasonable, simple structure, and the cleaning work efficiency is high, and the maintenance is convenient, and the stability is good and the practicality is good.

The object of the present invention is to provide a stable isotope concentrating device that has high energy efficiency and can reduce equipment costs, and provides a stable isotope concentrating device including a distillation column group in which multiple distillation columns are cascaded, and the distillation column group includes: a tray column group including one or more tray columns; and a packing column group including one or more packing columns, and the packing column group is located on a secondary side of the tray column group.

The invention relates to a method for producing diisocyanates and polyisocyanates of the diphenylmethane series, in which (i) a liquid product stream obtained in phosgenation, (ii) a reaction mixture present in an optionally present reactor for the cleavage of carbamoyl chloride, and (ii) a reaction mixture present in the reactor for the cleavage of carbamoyl chloride, (iii) the liquid product stream exiting the optionally present reactor for carbamoyl chloride cleavage, (iv) the reaction mixture present in dephosgenation or (v) the liquid product stream obtained in dephosgenation, is subjected to a single stage treatment with a gaseous hydrogen chloride stream in a bubble column or in a plate column for a contact time of from 1 minute to less than 30 minutes. The product stream treated in this way or the reaction mixture treated in this way is supplied directly (i.e., in particular without further treatment with inert gases) to the subsequent step or post-treatment of the reaction.

The invention provides a device and method for preparing hydrogenated bisphenol A through bisphenol A hydrogenation and application. The invention discloses a device for preparing hydrogenated bisphenol A by bisphenol A hydrogenation. The device comprises a hydrogen supply end, a bisphenol A supply end and a bubble cap plate tower, the bubble cap plate type tower comprises a liquid feeding hole, a gas feeding hole, a liquid discharging hole and a gas discharging hole; the hydrogen supply end is connected with a gas inlet of the bubble cap plate type tower; the bisphenol A supply end is connected with a liquid feeding hole of the bubble cap plate type tower; and the bubble cap tower plate is used for carrying out a reaction for preparing hydrogenated bisphenol A through bisphenol A hydrogenation. According to the invention, a bubble cap plate type tower is adopted to carry out a reaction for preparing hydrogenated bisphenol A through bisphenol A hydrogenation, and in the presence of a catalyst, a bisphenol A solution enters from the middle part of the tower, transversely flows through a bubble cap tower plate, overflows downwards and is in full contact with hydrogen entering from the lower part of the tower. And the conversion rate of reactants and the yield of products are high.

The present invention provides a composite tray and a plate column including the composite tray. The composite tray includes an inclined tray and baffles arranged on the inclined tray. The composite tray includes a single-tray composite tray or a double-tray composite tray. The number of layers of the inclined trays is at least two, and the inclination directions of adjacent two layers of inclined trays are opposite. At least two baffles are arranged on each inclined tray, and at least one row of downcomer holes is arranged in front of each baffle on the inclined tray. By arranging the trays inclined and setting multiple baffles, the present invention promotes liquid renewal. The formation of steps makes the liquid layer thinner and the liquid distribution more uniform. By arranging downcomer holes in front of the baffles, the dispersion degree of the liquid is increased, the contact with the vapor phase is more sufficient, the entrainment of liquid droplets is less, and the mass transfer and heat transfer efficiency is improved. The structural design of the composite tray can reduce the pressure drop between the trays, reduce the distance between the trays, and thus reduce the equipment cost and operation cost.

The utility model discloses an assembly type modularized toilet which comprises a prefabricated concrete bottom plate, inserting grooves are evenly formed in the upper surface of the prefabricated concrete bottom plate, plate-shaped stand columns are evenly connected to the inserting grooves of the prefabricated concrete bottom plate in an inserted mode, and a prefabricated concrete structure is arranged on the upper surface of a prefabricated concrete vertical plate. The side wall of the prefabricated concrete structure is connected with the plate-shaped stand column in an inserted mode. The shape of a groove of the prefabricated concrete bottom plate is increased, the modular installation position is heightened, the waterproof effect is improved through integrated arrangement, a square cylinder is fixed to the surface of a single prefabricated concrete vertical plate according to the position of a pipeline, and then through the use of the prefabricated concrete structure, the pipeline extending through the square cylinder can be conveniently exposed, and line connection can be conveniently conducted; and meanwhile, modular standardization is met, preassembling adjustment is carried out according to the positions of the pipelines, and the embedded pipelines are convenient to position and maintain.