95results about How to "Great operating flexibility" patented technology

The invention relates to the technical field of nitrobenzene production, in particular to a method for preparing nitrobenzene by adopting a microreactor under a low-acid condition, the method for preparing nitrobenzene comprises the following steps: introducing a nitrating agent and raw material benzene into the microreactor for nitration reaction to obtain nitrobenzene, the microreactor is provided with at least four reaction modules which are connected in series, a nitrating agent and raw material benzene are fed into the first reaction module, and concentrated sulfuric acid is supplemented into at least one reaction module in other reaction modules except the first reaction module in the nitration reaction process; the effective concentration of sulfuric acid in the nitrating agent is not higher than 77%. The method for preparing nitrobenzene solves the production problems that benzene in a micro-reaction system is poor in reaction stability, incomplete in conversion and large in residual quantity in a low-acid environment, dinitration is affected, and the yield of waste acid is large. Finally, a mechanical application process of the dinitration waste acid and the acidic benzene is realized, the production process is safe and reliable, the operation flexibility is high, and the stability is high.

The invention provides a sulfate-containing waste liquid treatment system and a sulfate-containing waste liquid treatment method for acrylonitrile and a combination device thereof, the system comprises at least two sets of waste liquid treatment units and a set of flue gas treatment unit, sulfate waste liquid is divided into two strands to enter the two sets of waste liquid treatment units for combustion, waste heat utilization and quenching purification, the discharged sulfur-containing flue gas is collected and enters a set of flue gas treatment unit, the sulfur-containing flue gas subjected to deep cooling, demisting and drying can be directly used for producing high-purity sulfuric acid, and a two-end and one-tail mode is adopted, so that the operation flexibility of the system is improved, and the treatment pressure is reduced. In the waste liquid treatment unit, a high-temperature reaction device adopts segmented air distribution, so that sufficient combustion of waste liquid is ensured, and SO2 loss is reduced; a special temperature field and structural design in the waste heat boiler can prevent the heat exchange device from scaling and blocking; a venturi scrubber is adopted in the quenching purification device to quench the flue gas, and a protective liquid film is formed on the contact interface of the high-temperature flue gas and a liquid phase, so that the temperature of equipment is effectively reduced, and corrosion of the high-temperature flue gas is prevented.

The invention relates to a mother liquor continuous treatment device, which is used for treating mother liquor containing a high-boiling-point organic solvent, water and salt, and is characterized in that the device comprises a raw material tank, a scraper evaporator, a mother liquor recovery system and a condensation system, the mother liquor recovery system comprises a stirring tank connected with the bottom of the scraper evaporator, a centrifugal machine connected with the bottom of the stirring tank, and a centrifugal mother liquor receiving tank connected with the centrifugal machine; the condensation system comprises a first-stage preheater, a second-stage preheater, a condenser, a tail cooler and an evaporated liquid receiving tank, wherein the second-stage preheater and the condenser are connected with the first-stage preheater, the tail cooler is connected with the condenser, and the evaporated liquid receiving tank is respectively connected with the condenser and the tail cooler.

The present invention relates to a skid-mounted natural gas processing device. The natural gas processing device is skid-mounted as a whole and shipped out of the factory. The on-site assembly is simple and quick, and the device is convenient for transportation. With its convenient and quick construction method and safe and reliable operation mode, it adopts two-stage compression and two-stage separation. It can efficiently recover the associated gas resources of the oil field according to different oil field scales and gathering and transportation conditions, and is convenient for subsequent harmless treatment and deep processing of downstream products, so that the resources can be fully utilized, which is beneficial to oil field production and safety management.

The invention discloses a self-balancing multiphase self-shunting device and a control method, and belongs to the technical field of chemical separation. The device comprises an automatic split-phase tank (1), a pressure display A (2), a system pressure automatic controller (3), a light phase collecting tank (4), a liquid discharge valve A (5), a pressure display B (6), a material inlet (7), a light phase overflow port (8), a heavy phase extraction port (9), a split-phase internal component (10), a liquid discharge valve C (11), a heavy phase extraction automatic regulating valve (12), a heavy phase collecting tank (13) and the like. The device is simple in structure and control method, can be operated at normal pressure or under pressure, is high in operation elasticity, realizes self-balance of the liquid level height by utilizing the light phase overflow port (8), realizes rapid phase separation of light and heavy components by adopting a special structure of the phase separation inner component (10), forms a stable phase interface, is good in separation effect, and is suitable for industrial production. The method can be used for chemical unit operations such as extraction separation, reaction separation and rectification.

The utility model discloses an MVR (mechanical vapor recompression) evaporation system which comprises a first-effect circulating pump, a first-effect heater, a first-effect separator, a first-effect material transfer pump, a second-effect separator, a second-effect circulating pump, a second-effect heater and a vapor compressor. The second-effect circulating pump, the tube pass of the second-effect heater and the second-effect separator are connected through a pipeline to form a second-effect evaporation circulating unit, the first-effect evaporation circulating unit is connected to the second-effect evaporation circulating unit through a pipeline, and a steam outlet of the first-effect separator and a steam outlet of the second-effect separator are connected to the steam compressor through pipelines. An outlet of the steam compressor is connected to shell sides of the first-effect heater and the second-effect heater through pipelines. Under the condition that the thermal load is not changed, the average effective heat transfer temperature difference is increased by about 20%, and the total heat exchange area is reduced by about 20%; the average boiling point temperature rise is reduced by about 6%, scaling of the separator can be slowed down, and operation flexibility is improved.

The invention discloses a method for continuously preparing nano-emulsion in an ultrasonic micro-packed bed reactor. According to the ultrasonic micro-packed bed reactor disclosed by the invention, the large-radiating-surface horn-shaped sandwich type transducer and the capillary microreactor are glued, and the solid filler is assembled in the microreactor, so that effective interception of acoustic cavitation bubbles under the condition of high liquid phase flow can be realized, and the ultrasonic energy efficiency is improved. The capillary microreactors are connected through a stepped structure, so that the filler can be freely detached, and the structure, size and material of the filler are convenient to replace. Through continuous conveying equipment, a continuous phase and a dispersed phase are mixed and emulsified in the reactor, and efficient and rapid preparation (2-180s) of the nano-emulsion (the average size is 20-500nm) can be realized. According to the method, the preparation time of the nano-emulsion is shortened (5-60 minutes in the prior art), continuous production is realized, and the method is simple and convenient to operate and easy to integrate and amplify in parallel.

The present invention discloses a device and method for denitrifying and recovering ethane from natural gas by using a mixed refrigerant, which solves the technical problems in the prior art that when the nitrogen content in natural gas is high, the calorific value of its combustion will be affected, the energy consumption in the gathering and transportation process will be high, and the natural gas cannot be directly used as a raw material for certain chemical products and a vehicle fuel. The device comprises a main heat exchanger (1) and a low-temperature separator (2) which are connected in sequence through a cold-insulating pipeline; the top and bottom of the low-temperature separator (2) are respectively provided with a gas phase outlet and a liquid phase outlet, and the gas phase outlet and the liquid phase outlet of the low-temperature separator (2) are respectively connected to a gas phase processing line and a liquid phase processing line. The present invention provides a device and method for denitrifying and recovering ethane from natural gas by using a mixed refrigerant, which has the advantages of simple system operation, high system operation flexibility, adaptability to different load conditions, low energy consumption, reasonable investment, and can not only improve the calorific value of natural gas, but also recover liquid ethane and liquefied petroleum gas, and has great economic benefits.

This invention relates to the field of organic waste gas recovery and resource utilization technology, and particularly to a low-volume methane / VOCs co-recovery system, method, and application in oil and gas development processes. The system includes a waste gas generating device, a waste gas collecting device, a waste gas conveying device, and an adsorption storage device connected in sequence. The adsorption storage device is filled with layered adsorption materials, which include a layered adsorption layer of heavy components, a layer of intermediate components, a layer of light components, and a protective bed, stacked sequentially. This invention, based on the adsorption storage concept and utilizing the inherent potential energy of the oil and gas development process, achieves efficient recovery of methane / VOCs from intermittent emission sources, reducing greenhouse gas methane and VOCs emissions and improving oil and gas product yields.

The utility model relates to a system for cutting naphtha components in a reforming device, in particular to a control system for separating heavy components and light components of naphtha, which comprises a naphtha feeding unit, a pre-hydrogenation device and an aromatization separation tower unit, the aromatization separation tower unit is arranged in front of the pre-hydrogenation device, and the naphtha feeding unit is connected with the pre-hydrogenation device through a pipeline; the naphtha feeding unit is used for feeding materials to the system, the aromatization separation tower unit is used for cutting naphtha, then heavy naphtha components are returned to the pre-hydrogenation device, and light components are conveyed to a plant tank area and reach a wharf ship loading line; a set of tower separation system is additionally arranged in front of a pre-hydrogenation device, heavy components and light components are separated, and the purposes of enlarging loads, increasing operation flexibility and maximizing benefits are achieved; flexible application can be realized, and when market benefits are beneficial to processing of the full-fraction naphtha, the full-fraction naphtha can be completely processed.

This invention discloses a devolatilization process for high melt flow index and high transparency lithium-based polymer solutions. The process employs falling film evaporation for initial evaporation, followed by deep devolatilization using a twin-screw extruder, with the volatile solvent being condensed and recovered. The devolatilized polymer melt is then extruded by a screw extruder, pelletized by an underwater pelletizer, and dehydrated by a centrifugal dewatering machine to obtain finished polymer granules. This method can be used for the devolatilization of high melt flow index, high transparency, and low water content lithium-based polymer solutions, and the resulting polymer volatile content is ≤0.5% (mass fraction). The granules or cobblestone-like particles are easy for downstream processing applications. This process is simple, low-cost, can be manufactured using existing mature equipment and processes, and is easy to control and industrialize.

The invention discloses an air oxygen enrichment process for full-temperature simulated rotating moving bed pressure swing adsorption, belongs to the technical field of pressure swing adsorption, and solves the technical problem that both the purity and yield of O2 products cannot be achieved. The process places a plurality of axial flow fixed bed adsorption towers on a circular rotating tray and is placed in the center of a multi-channel rotary valve and around the valve, and is connected through pipelines and the rotation direction and speed of the rotary valve, the rotation direction and speed of the circular rotating tray are regulated, so that the gas flowing through the multi-channel rotary valve channel and the pipeline connected to the inlet and outlet ends of the channel and the inlet and outlet ends of the adsorption tower on the circular rotating tray and the rotating and moving adsorption bed in the adsorption tower continuously passes through the position of the inlet and outlet of each adsorption tower and each adsorption bed completes the mass transfer of the respective adsorption and desorption steps while rotating, thereby forming a "simulated rotating moving bed" pressure swing adsorption process, improving the mass transfer efficiency and production scale, and obtaining high-purity and high-yield O2 products.

The invention relates to the technical field of chemical engineering, in particular to a preparation method and system of isooctyl nitrate. The invention provides a preparation method of isooctyl nitrate, which comprises the following steps: A) feeding nitric acid, sulfuric acid and isooctyl alcohol into a microchannel reactor according to a flow ratio of 1.05: 2-2.5: 1, and reacting to obtain an isooctyl nitrate crude product; b) performing waste acid regeneration on the waste acid generated by the reaction; and carrying out alkali washing deacidification and water washing desalination on the isooctyl nitrate crude product to obtain the isooctyl nitrate. The preparation method and system provided by the invention are safer in reaction; the micro-channel reactor has no amplification effect from small test to industrial amplification; the catalyst can be used for synthesis reactions under various extreme conditions; the specific surface area is increased, and heat released by reaction is rapidly transferred; and the heat transfer process and the mass transfer process are enhanced. And the conversion rate and the product yield of the prepared isooctyl nitrate are excellent, and the quality of the prepared isooctyl nitrate is excellent.

The invention relates to the technical field of petrochemical low-temperature waste heat recovery systems, and particularly discloses a pressure stabilizing system and device for a petrochemical low-temperature waste heat recovery system. Comprising a surge tank, an automatic water replenishing valve, a safety valve and a communicating pipe, an air inlet pipe and an exhaust pipe are further arranged on the surge tank, an automatic constant pressure valve is arranged on the air inlet pipe, an automatic exhaust pressure relief valve is arranged on the exhaust pipe, and a surge tank pressure monitor is arranged on the surge tank; the automatic constant pressure valve, the automatic exhaust pressure relief valve and the surge tank pressure monitor are all electrically connected with a PICA controller. The pressure stabilizing tank is further provided with a pressure stabilizing tank liquid level monitor and a pressure stabilizing tank liquid level meter, and the automatic water supplementing valve and the pressure stabilizing tank liquid level monitor are both electrically connected with the LICA controller. A water injection pump of the pressure stabilizing system of the heating medium water pipe network is frequently started and stopped, a safety valve frequently jumps, and the system pressure is unstable.

The invention provides a gas-solid reaction device and a gas-solid reaction method, and relates to the technical field of reaction equipment, the gas-solid reaction device comprises a riser reaction assembly, a downer reaction assembly and a separation circulation assembly, the riser reaction assembly comprises a pre-reaction section and a riser section; the downer reaction assembly comprises a downer, and the downer is communicated with the lifting pipe; the separation circulation assembly comprises an axial-flow type gas-solid separator, a material storage accompanying bed and a connecting pipeline, an inlet of the axial-flow type gas-solid separator is communicated with an outlet of the downer, a gas phase outlet of the axial-flow type gas-solid separator is communicated with a gas phase area of the material storage accompanying bed, and a solid phase outlet of the axial-flow type gas-solid separator is communicated with a material storage area of the material storage accompanying bed. According to the invention, the riser reaction assembly and the downer reaction assembly are arranged, so that the gas-solid reaction of ultrafine particles mainly occurs in the dilute-phase bed section, the contact and mixing efficiency between gas and solid is effectively enhanced, and the common problems of insufficient gas-solid contact, adhesion between particles, heat exchange dead zone and the like in the dense-phase bed section are avoided.

The application discloses a tail gas treatment device and method, which comprises a water washing tower, a filler, a sieve plate, a liquid phase stabilization zone, a circulating pump and a control unit.

The present application relates to a method for removing iron ions from a solution containing a carboxyl compound, comprising the following steps: (1) pre-treating an anion resin until the anion concentration in the resin eluent is less than 10 ppb; and (2) passing a solution containing iron ions and carboxyl compounds through the anion resin at a flow rate of 0.1 to 10 BV / h, collecting and detecting the iron ion content in the solution containing the carboxyl compound after passing through the anion resin, and stopping the collection when the iron ion content relative to the carboxyl compound is greater than 10 ppb. The iron ion content in the solution containing the carboxyl compound finally obtained is less than 10 ppb, and the operation is simple, the yield is high, the repeatability is good, the production is easy, the impurities introduced are few, and the anion resin will not be penetrated.

The invention discloses an oil and gas development waste gas treatment system and treatment method. The system comprises a waste gas collecting device used for collecting waste gas generated in an oil and gas development ground waste gas generating device; the waste gas homogenizing device is used for homogenizing the received waste gas; the catalytic combustion device is used for performing catalytic combustion on the homogenized waste gas; the heat recovery device is used for carrying out heat recovery on flue gas generated by combustion in the catalytic combustion device through a heat recovery medium; a heat recovery medium storage unit for storing a heat recovery medium; the material outlet of the heat recovery medium storage unit is communicated with the medium inlet of the heat recovery device, the material inlet of the heat recovery medium storage unit is communicated with the medium outlet of the waste gas generation device, and the medium outlet of the heat recovery device is communicated with the medium inlet of the waste gas generation device. The system not only purifies and treats waste gas, but also realizes self-utilization of heat generated in the treatment process, and realizes cooperation of pollutant emission reduction and resource utilization.

The invention discloses a process for producing hydrogen by a full-temperature range simulated rotating moving bed pressure swing adsorption (FTrSRMPSA) of a shift gas, wherein an axial flow fixed bed adsorption reactor having a plurality of mixed medium and low temperature shift catalysts and adsorbents placed in the center of a multi-channel rotary valve and arranged on a circular rotating tray around the reactor is connected through a pipeline and the rotating direction and speed (ω1) of the rotary valve and the rotating direction and speed (ω2) of the circular rotating tray are regulated, so that the gas flowing through the adsorption reaction bed layer continuously passes through the positions of the inlet and outlet of each adsorption reactor and each adsorption reaction bed layer completes the mass transfer and heat transfer of the respective reaction-adsorption and desorption regeneration steps while rotating, thereby realizing a simulated rotating moving bed pressure swing adsorption enhanced reaction process based on the axial flow fixed bed pressure swing adsorption, and directly obtaining hydrogen (H2) product gas with a purity greater than or equal to 99.9-99.99% and a yield greater than or equal to 92-95%, and simultaneously producing high-purity carbon dioxide (CO2) as a byproduct.

The present invention discloses a thin layer drying device, wherein a secondary material distribution mechanism comprises a rectangular overflow trough, a U-shaped main trough, a flow stabilizing plate, a liquid infusion main pipe and a liquid infusion tube. The upper end of the drying column is provided with a rectangular overflow trough, the upper end of the rectangular overflow trough is provided with a U-shaped main trough, a flow stabilizing plate is provided inside the U-shaped main trough, a liquid infusion main pipe is provided on one side of the U-shaped main trough, a plurality of liquid infusion tubes are provided between the liquid infusion main pipe and the U-shaped main trough, and one end of the liquid infusion tube penetrates into the U-shaped main trough. The secondary material distribution mechanism of the present invention, on the one hand, slows down the descending kinetic energy of the mother liquid, and avoids the secondary material distribution mechanism being directly impacted by the large flow mother liquid; on the other hand, it avoids the rapid fluctuation of the liquid level, causing the splashing of the material liquid, and effectively improves the uniformity of the mother liquid distribution. Under the action of the gravity and surface tension of the mother liquid and the centrifugal force of the drying column, a complete, uniform and stable liquid film can be quickly formed on the outer surface of the drying column.

The invention discloses an air separation nitrogen production process of full-temperature simulated rotating moving bed pressure swing adsorption (FTrSRMPSA), in which a plurality of axial flow fixed bed adsorption towers are placed in the center of a multi-channel rotary valve and arranged on a circular rotating tray around the valve, and are connected through pipelines and the rotating direction and speed (ω1) of the rotary valve and the rotating direction and speed (ω2) of the circular rotating tray are regulated, so that the gas flowing through the rotating adsorption bed layer in the adsorption tower continuously passes through the positions of the inlet and outlet of each adsorption tower and each adsorption bed layer completes the mass transfer of its own adsorption and desorption steps while rotating, thereby realizing the simulated rotating moving bed pressure swing adsorption process based on the axial flow fixed bed pressure swing adsorption, so that the adsorption and desorption multi-step cyclic operation is performed, and the nitrogen product gas with a purity of 96-99.9% and a yield of 50-70% is obtained from the air.

The present invention discloses a device and method for realizing rapid separation of large-scale oil-water mixtures. The separation device includes one or more cyclone core tubes, which are cyclone sections, tapered sections and flow-stabilizing tubes from bottom to top. The cyclone section is a cylinder with upper and lower openings, and the lower end opening of the cyclone section is an axial inlet, and a spiral blade is provided on the upper part of the axial inlet; the tapered section includes an inner cone section with a certain taper and upper and lower openings, and a sleeve outside the inner cone section, and a plurality of water phase outlets are evenly distributed on the sleeve in an annular direction, and two rows of water holes are axially symmetrically provided on the inner cone section; the flow-stabilizing tube is a cylinder with upper and lower openings, and the lower end of the flow-stabilizing tube penetrates into the inner cone section from the upper opening of the inner cone section and is fixed to the upper part of the cyclone section, and the upper opening of the flow-stabilizing tube is an oil phase outlet. The separation device of the present invention introduces a flow-stabilizing tube to collect large oil droplets near the axial direction of the cyclone section, and has a compact structure, high separation efficiency and stable separation effect.

The invention discloses a coal dry flotation process, the main steps of which are as follows: 1) loading bed material particles into an upper bed and a lower bed, adjusting the gas velocity of the two beds to make the particles circulate and fluidize; 2) sending crushed raw coal particles into the middle of the upper bed, and the heavier gangue particles gradually sink to the bottom and are mined; 3) the lighter coal particles gradually float up and enter the lower bed through the upper orifice with the bed material particles, and the coal particles are enriched at the upper part and mined; 4) the bed material particles continue to sink in the lower bed and return to the upper bed through the lower orifice to continue to participate in the next cycle of raw coal flotation. The process requires simple equipment, decouples the simultaneous separation process of gangue and coal particles into two relatively independent separation processes, firstly mining the gangue particles, and then mining the coal particles, and can take into account the mining purity of both at the same time. In addition, the process has good versatility and can realize continuous and efficient sorting of different types of raw coal.

The utility model provides an improved three-dimensional mass transfer tower tray which comprises a tower plate, a cap cover is arranged on the tower plate, sieve pores are formed in the tower plate at the lower part of the cap cover, a fixed valve is arranged on the sieve pores and comprises a fixed mounting part, and at least two fixed valve plates are arranged on the outer side of the fixed mounting part; fixed valve legs are arranged between the adjacent fixed valve plates or on the sides, deviating from the fixed mounting part, of the fixed valve plates, the fixed valve legs are connected with the tower plate, the number of the fixed valve legs is smaller than or equal to that of the fixed valve plates, and gaps are formed between the fixed valve plates and the sieve holes and between the fixed valve legs and the sieve holes; the gas phase rises from the lower part of the tower plate through the sieve pores, the gas moves from the inside of the valve to the tail end of the fixed valve plate, a downward secondary film-drawing crushing mass transfer effect is achieved, the gas-liquid contact area is further increased, and after the gas goes out of the tower plate, vertical momentum is converted into transverse momentum, so that entrainment entrainment is relatively small; the operation elasticity is 20%-130%, and the operation elasticity of the device is higher.

This invention discloses a method and apparatus for adaptive multi-fuel switching in gas turbines, belonging to the field of gas turbine energy utilization technology. The apparatus includes a gas turbine body, a multi-gas source supply unit, a detection and control unit, and a unit control system. The multi-gas source supply unit includes a parallel LNG No. 1 pipeline, a membrane tail gas No. 2 pipeline, and a syngas No. 3 pipeline, each pipeline equipped with valves and metering components. The detection and control unit is equipped with multiple online calorific value meters to realize real-time calorific value detection. The unit control system embeds a calorific value calculation, price input, and a three-dimensional decision chain module of price-calorific value-electricity price. The method includes gas turbine body nozzle and load modification, multi-gas source process construction, detection unit deployment, and control system function embedding, ultimately realizing adaptive switching of multiple gas sources and dynamic adjustment of gas turbine load. This invention breaks through the fuel rigidity and load limit of gas turbines, providing a technical paradigm for low-carbon refineries.

The invention discloses a distribution network recovery control system and method based on an electric vehicle battery swap station, and belongs to the technical field of power systems. The method comprises the following steps: obtaining operation information of all energy storage batteries and battery swap stations in a region; based on the operation information, establishing an optimal scheduling model considering the energy storage battery in the transportation battery swap station; the system operation cost in the region is used as a target function, constraint conditions of the energy storage batteries and the battery swap station are combined, and energy storage battery position information and output power information with the lowest system operation cost are obtained through an optimization scheduling model; and scheduling the energy storage batteries in the battery swap station based on the energy storage battery position information and the output power information. According to the method, the operation constraint of the battery swap station and the characteristics that the energy storage batteries are large in number and small in capacity are combined, cross-region circulation of the energy storage batteries of the battery swap station is achieved by dispatching the battery-replaceable electric vehicles, the operation cost of a power system under the disaster splitting condition is effectively reduced, the rapid recovery capacity after disasters is improved, and the reliability of the power system is improved. And safe operation of the important load is ensured to the greatest extent.

The utility model discloses a butanol and octanol catalytic hydrogenation comprehensive treatment system, which comprises a butanol and octanol catalytic hydrogenation reactor consisting of a gas outlet seal head, a tank body and a gas inlet seal head, the gas outlet seal head and the gas inlet seal head are respectively communicated with a gas outlet header pipe and an aldehyde gas inlet header pipe, and the inside of the tank body is equally divided into a plurality of cylinders with fan-shaped radial sections. A hydrogenation reaction tube group, a catalyst standby tube group and a thermocouple tube are arranged in each column body; a gas outlet of each hydrogenation reaction pipe group is communicated with a gas outlet header pipe, and a gas inlet is connected with an aldehyde gas inlet header pipe through an aldehyde branch pipe; a gas outlet of each catalyst standby pipe group is communicated with a gas outlet header pipe, a gas inlet is connected with a corresponding aldehyde branch pipe through a gas distribution pipe and a standby pipeline, and each standby pipeline is provided with a standby pipe control valve. According to the utility model, the butyl octanol catalytic hydrogenation reactor is modified, so that hot spots can be eliminated, and the temperature runaway phenomenon can be prevented and controlled.

The utility model discloses a uniform-point mass transfer tower tray. The uniform-point mass transfer tower tray comprises an I-type tower tray and an II-type tower tray, the I-type tower trays and the II-type tower trays are alternately mounted in the tower body at intervals along the layer direction; a plurality of mass transfer units and a plurality of downcomer units are arranged on each I-type tower tray and each II-type tower tray; a mass transfer unit is arranged on each airflow hole formed in each I-shaped tower tray and each II-shaped tower tray; a downcomer unit is arranged on each plate hole formed in each I-shaped tower tray and each II-shaped tower tray; the mass transfer unit is matched with the downcomer unit on the upper layer, and the downcomer unit is matched with the mass transfer unit on the lower layer. The liquid falling units and the mass transfer units are in one-to-one correspondence to form an independent micro mass transfer unit, the whole tray can be used as a combination of a plurality of micro mass transfer units, and the liquid-phase flow and the gas-liquid mass transfer efficiency among the micro mass transfer units are not mutually influenced, so that the mass transfer of the whole tray is more uniform, and the mass transfer efficiency is improved.

The invention provides an energy-saving and consumption-reducing sodium hypochlorite production device and a production method. The device comprises an electrolytic chlorine production unit and an alkali liquor preparation unit, the electrolytic chlorine production unit is connected with a chlorine gas washing tower, the chlorine gas washing tower is connected with a falling film absorber and a chlorine gas cooler, the chlorine gas cooler, a water mist catcher and a chlorine gas drying and liquefying unit are sequentially connected, and the chlorine gas drying and liquefying unit is connected with a sodium hypochlorite reaction unit; the alkali liquor preparation unit is connected with the alkali liquor head tank through the alkali liquor delivery pump, the alkali liquor head tank is connected with the falling film absorber, a liquid outlet of the falling film absorber is connected with the sodium hypochlorite reaction unit, and a liquid outlet of the sodium hypochlorite reaction unit is connected with the sodium hypochlorite storage tank through the sodium hypochlorite delivery pump. According to the device provided by the invention, alkali liquor and wet chlorine are firstly subjected to primary reaction in the falling film absorber and then are subjected to secondary reaction with dry chlorine in the sodium hypochlorite reaction unit, so that high-quality sodium hypochlorite is generated, and the device is high in automation degree, stable in production operation, simple to operate and relatively high in operation flexibility.

The present invention discloses a structure for uniformly exporting gas from a filled-type particle material processing device, which is used for uniformly exporting gas from the middle section of the device, and comprises: a device cylinder, an inner cone is connected to the inner wall of the device cylinder, an inverted cone is arranged at the center of the device cylinder, the inverted cone is connected to the inner cone through a connecting pipe, and a gas outlet nozzle is connected to the outer wall of the device cylinder. The structure has the following beneficial effects: the uniformly exporting gas structure can uniformly export any amount of gas medium at any required height of the filled-type particle material processing device, greatly increases the flexibility of gas medium distribution in the filled-type particle material processing device in terms of design and operation, and increases the operational flexibility of the device by effectively reducing the gas operation energy consumption.