60 results about "Multiple-effect evaporator" patented technology

The present invention relates to the technical field of water distillers, and disclosed are a thermocompression multi-effect water distiller system and a control method therefor. The thermocompression multi-effect water distiller system comprises a distillation unit and a control unit; the distillation unit comprises a multi-effect evaporator; the multi-effect evaporator is a horizontal tube falling film evaporator and has a side-by-side configuration, and the shell pass of a preceding effect evaporator is communicated with the tube pass of a following effect evaporator; the control unit controls the distillation unit during working, and the control unit is a feedforward-cascaded fuzzy PID model predictive control system and comprises an inner-loop control system and an outer-loop control system; the inner-loop control system uses fuzzy PID control, and the inner-loop control system is provided with a control system for fluctuations in industrial steam pressure Psteam; and the outer-loop control system uses model predictive control. In the present invention, by using the thermocompression multi-effect water distiller system and the control method therefor, the heat exchange efficiency is greatly improved; and a novel control system is provided, enabling normal operation within a range of 40-200% of a set operating condition.

The invention relates to the field of evaporators, in particular to a multi-effect evaporator and a using method thereof. Comprising an evaporation tank, the tank side is provided with an exhaust port and a connector, the connector is communicated with a working tank, the exhaust port is communicated with a gas collection tank, and a liquid storage tank is arranged beside the working tank to store wastewater to be treated. A filtering cavity, an evaporating cavity, a vaporizing cavity and a collecting cavity are arranged in the evaporating tank from top to bottom. The filtering mechanism comprises a liquid spraying pipe and a leakage plate, the liquid spraying pipe is coaxially and rotatably connected with the upper end of the tank, and the leakage plate is fixedly connected with the inner wall of the tank and coaxially rotates with the liquid spraying pipe. The evaporation assembly is connected with the liquid spraying pipe and provided with a positioning pipe, a flow guide pipe, a liquid level sensor and a plurality of evaporation mechanisms. The evaporation mechanisms are distributed in the evaporation cavity and each comprise a plurality of vaporization pipes, the flow guide pipes are communicated with the collection cavity and extend out of the tank, and the liquid level sensor is arranged in the collection cavity and used for monitoring the liquid level and guaranteeing stable operation of equipment. According to the device, uneven evaporation heat can be avoided, meanwhile, real-time monitoring of all treatment links is achieved, and the safety of equipment is improved.

The utility model discloses a novel combined cycle unit flue gas waste heat utilization seawater desalination system which comprises a waste heat boiler hot water system, a material water supply system, a cooling water system, a saline water system, a finished product water system and a vacuum system, the waste heat boiler hot water system comprises a waste heat boiler, a steam-water separator, an evaporator and a condenser which are connected in sequence, and the steam output end of the steam-water separator is connected with the evaporator; the hot water output end of the steam-water separator is connected with the waste heat boiler through a hot water return pipeline; a hot water booster pump is arranged on the hot water return pipeline; the evaporators are multi-effect evaporators and have eight effects, and the condensed water output end of the first-effect evaporator of the evaporators is connected with the hot water return pipeline. According to the scheme, the tail heating surface is additionally arranged on the basis of an original boiler, the exhaust gas temperature of the waste heat boiler is reduced, the recycled heat is increased, and the external hot water supply amount is increased under the condition that the power generation output of an original unit is not affected.

The invention relates to the field of power system control, and provides an intelligent coordination control method and system for a multi-source heat pump coupling dehumidification system of a power distribution station house, and the method comprises the steps: carrying out the characteristic analysis of a multi-source heat pump through a heat source quality evaluation model, and obtaining heat source characteristic parameters; dynamically reconstructing the heat exchange network topology according to the heat source characteristic parameters to obtain optimized heat exchange network configuration parameters; step dehumidification working medium circulation is conducted on the optimized heat exchange network configuration parameters through a multi-effect evaporator, and dehumidification working medium circulation parameters are obtained; performing neuromorphic control on the dehumidification working medium circulation parameters through a bionic pulse neural network to obtain a humidity control instruction; and dynamic load distribution is conducted on the multi-source heat pump system according to the humidity control instruction, an energy efficiency coordination optimization strategy is obtained, and coordination control is conducted on the multi-source heat pump through the energy efficiency coordination optimization strategy. The evaluation accuracy of the heat source performance parameters of the multi-source heat pump is improved, and the overall energy consumption level of the system is reduced.

The invention discloses a method for efficiently recycling residual alkali in tungsten ore decomposition liquid. The method comprises the following steps: step S1, evaporation and concentration; step S2, salting-out crystallization; s3, cooling, filtering and separating; the solution obtained after tungsten ore is decomposed and filtered in the step S1 is transferred into a multi-effect evaporator to be evaporated and concentrated, solid sodium hydroxide is supplemented to be dissolved to generate heat in the step S2 to be evaporated, meanwhile, sodium tungstate crystals are separated out through a salting-out crystallization method, the defect that the steam consumption of a direct evaporation crystallization method is large is overcome, and the yield of the product is improved. The direct recovery rate of sodium tungstate and sodium hydroxide is greatly improved, the production cost is saved, and the economic benefits of enterprises are increased; in the step S3, the sodium hydroxide mother liquor is returned to the tungsten ore decomposition procedure, sodium hydroxide is recycled through alkali concentration, salting-out and crystallization, the use amount of the auxiliary material solid sodium hydroxide is greatly reduced, the use amount of environment-friendly neutralization added acid is reduced, the salt content in production wastewater is reduced, and economic benefits are increased.

The utility model discloses a conduction oil leakage detection system for evaporators, which comprises at least one group of multi-effect evaporators and a detection system, each multi-effect evaporator comprises a vacuum pump, a condensate water storage tank, an emergency storage tank, an effect body and a surface condenser, the effect body and the surface condenser are connected through a first pipeline and a second pipeline, and conduction oil is arranged in the first pipeline. To-be-processed liquid is arranged in the second pipeline, the first pipeline is sleeved with the second pipeline, the vacuum pump is connected with the surface condenser through the second pipeline, the condensate water storage tank is connected with the second pipeline through a third pipeline, and the emergency storage tank is connected with the second pipeline through a fourth pipeline; the detection system comprises a negative pressure detection device, a remote controller and a plurality of pneumatic valves, the negative pressure detection device is used for detecting the negative pressure value in the second pipeline, the pneumatic valves comprise a plurality of first pneumatic valves and a plurality of second pneumatic valves, the first pneumatic valves are located on the third pipeline, and the second pneumatic valves are located on the fourth pipeline.

The present invention discloses a low-temperature multi-effect seawater desalination system using a steam reciprocating pump. The steam reciprocating pump module includes a plurality of serially connected steam reciprocating pumps. The steam reciprocating pump comprises a high-pressure cylinder, a low-pressure cylinder, and a piston. Through the series connection of multiple-stage steam reciprocating pumps, the motive steam is used to drive the steam reciprocating pump to compress and suck the steam. The sucked steam at each stage is directly discharged after compression, and the motive steam is discharged after passing through the last-stage steam reciprocating pump. The discharged motive steam and the newly sucked steam are mixed in the mixing chamber to form heating steam. Without adding additional devices and consuming additional electric energy, the temperature increase and pressure boost of the sucked steam are completed, the direct mixing of the motive steam and the sucked steam is avoided, the flow rate of the motive steam is reduced, and the energy consumption is decreased. Moreover, in this application, the cooling seawater for cooling the secondary steam of the last effect is used as the feed seawater in the multi-effect evaporator group, reducing the loss of available energy and improving the production efficiency.

The invention relates to the technical field of industrial equipment automatic control, in particular to a cooperative operation control method and system for a multi-effect evaporator. The method comprises the following steps: training a GRU-based reference feedforward model by using multi-source time sequence data in a clean state of equipment; secondly, an observation total heat exchange coefficient and a theoretical total heat exchange coefficient are obtained in real time, and a cleanliness evaluation factor is calculated through a filter to represent the scaling degree; secondly, performing nonlinear gain correction on the reference feed-forward signal based on the factor to obtain a self-adaptive feed-forward signal for compensating the scaling influence; and finally, generating a dynamic cooperative weight according to the volatility of the current working condition, and carrying out weighted fusion on the self-adaptive feedforward signal and the feedback control signal. According to the method, the problem that the static model is mismatched along with equipment scaling is solved, and stable and efficient control of the whole period is guaranteed.

The utility model is suitable for the technical field of evaporators, and provides a potassium carbonate multi-effect evaporator which comprises a plurality of evaporators and a filtered gas conveying assembly, and the evaporators are arranged in sequence; the evaporators comprise a first-effect evaporator, a second-effect evaporator and a third-effect evaporator; the first-effect evaporator, the second-effect evaporator and the third-effect evaporator are connected through water pipes, and water pumps are installed on the water pipes and used for conveying water flow in sequence. Heating assemblies are arranged in the evaporators and used for heating liquid in the evaporators; the filtered gas conveying assembly is arranged at the top end of each evaporator so that superior gas can be transferred one by one. Wherein the evaporator at the tail end is also provided with a precooler, and the precooler is connected with an external crystallizer; according to the multi-effect evaporator, the evaporation speed can be greatly increased, energy consumption during work is reduced, the interior of the multi-effect evaporator can be conveniently disassembled and maintained, and therefore the practicability of the multi-effect evaporator is effectively improved.

The present invention relates to the technical field of water distillers, and disclosed are a thermocompression multi-effect water distiller system and a control method therefor. The thermocompression multi-effect water distiller system comprises a distillation unit and a control unit; the distillation unit comprises a multi-effect evaporator; the multi-effect evaporator is a horizontal tube falling film evaporator and has a side-by-side configuration, and the shell pass of a preceding effect evaporator is communicated with the tube pass of a following effect evaporator; the control unit controls the distillation unit during working, and the control unit is a feedforward-cascaded fuzzy PID model predictive control system and comprises an inner-loop control system and an outer-loop control system; the inner-loop control system uses fuzzy PID control, and the inner-loop control system is provided with a control system for fluctuations in industrial steam pressure Psteam; and the outer-loop control system uses model predictive control. In the present invention, by using the thermocompression multi-effect water distiller system and the control method therefor, the heat exchange efficiency is greatly improved; and a novel control system is provided, enabling normal operation within a range of 40-200% of a set operating condition.

The invention belongs to the technical field of comprehensive utilization of Juncao, and particularly relates to a method for preparing furfural from Juncao and comprehensively utilizing the furfural. The method comprises the following steps: firstly, carrying out catalyst impregnation pretreatment on Juncao, carrying out hydrolysis reaction by using an integrated vertical hydrolysis pot, and separating after hydrolysis to obtain a furfural aqueous solution and a blow-off material, namely furfural residue; cooking the blown material through alkaline pulping, squeezing, washing with water, and bleaching to obtain finished pulp; black liquor obtained in the material spraying and squeezing process reacts by a multi-effect evaporator to obtain lignin; therefore, production of Juncao furfural and effective separation of pulp and lignin are realized.

The utility model discloses a biological trickling filtration water distribution and caustic soda flake callback PH value device which comprises a plurality of evaporators which are connected in series through a steam output pipeline and a concentrated solution output pipeline, the steam output pipeline of the last effect evaporator is provided with a condenser, the refrigerant of the condenser is water, and the concentrated solution output pipeline of the last effect evaporator is connected with the steam output pipeline of the last effect evaporator. A refrigerant output end of the condenser is fed into caustic soda flake adding equipment through a primary water pipeline, and a caustic soda flake tank is arranged at the top of the caustic soda flake adding equipment. According to the biological trickling filtration water distribution and caustic soda flake adding PH value back-adjusting device, the temperature of caustic soda flake water distribution is increased by utilizing the heat of the last-effect steam of the multi-effect evaporator, so that the temperature of the caustic soda flake water distribution reaches the temperature for efficiently dissolving caustic soda flakes, the device adapts to a cold outdoor caustic soda flake water distribution environment, and the efficiency and the solubility of the device are improved.

The utility model discloses a novel boiler continuous drainage self-heating desalting system which comprises a heating evaporation and water supply system, a saline water discharging and cooling circulation system, a finished product water discharging system, a cold air system and a vacuum system. The heating evaporation and water supply system comprises a continuous blowdown flash tank, a flash tank, an evaporator and an air-cooled condenser which are connected in sequence, the evaporator is a multi-effect evaporator, the steam output end of the flash tank is connected with the steam input end of a first-effect evaporator of the evaporator, and the water drainage end of the flash tank is connected with a water spraying device of the first-effect evaporator of the evaporator; and the constant-drainage flash tank is connected with a water spraying device of a second-effect evaporator of the evaporator through a constant-drainage hot water pipeline. According to the scheme, a low-temperature multi-effect process mode and a multi-stage flash evaporation process mode are combined, heat of regular discharge and continuous discharge of the power plant is recycled, regular discharge and continuous discharge waste water is utilized for multiple times according to corresponding attributes in a grading mode, heat source loss is reduced, and the energy utilization rate is increased.

The present invention relates to the field of evaporators, and specifically relates to a multi-effect evaporator and its usage method. It includes an evaporation tank, with an exhaust port and a connection port respectively arranged on the side of the tank. The connection port is connected to a working tank, and the exhaust port is connected to a gas collection tank. A liquid storage tank is arranged beside the working tank to store the wastewater to be treated. Inside the evaporation tank, from top to bottom, there are a filtration chamber, an evaporation chamber, a vaporization chamber, and a collection chamber. The filtration mechanism includes a liquid spraying pipe and a leakage plate. The liquid spraying pipe is rotatably connected to the upper end of the tank coaxially, and the leakage plate is fixedly connected to the inner wall of the tank and rotates coaxially with the liquid spraying pipe. The evaporation assembly is connected to the liquid spraying pipe and includes a positioning pipe, a diversion pipe, a liquid level sensor, and several evaporation mechanisms. The upper part of the positioning pipe has air spraying holes. The evaporation mechanisms are distributed in the evaporation chamber, and each evaporation mechanism includes several vaporization pipes. The diversion pipe is connected to the collection chamber and extends outside the tank. The liquid level sensor is placed in the collection chamber to monitor the liquid level and ensure the stable operation of the equipment. This device can avoid uneven evaporation heat, and at the same time, realize the real-time monitoring of each treatment link, improving the safety of the equipment.

The invention relates to a chemical waste resource utilization technology, in particular to a system for preparing calcium chloride from calcium carbide method PVC byproduct hydrochloric acid and carbide slag. The device comprises a hydrochloric acid conveying pipeline, a filter, a reaction kettle, a carbide slag bin, a plate-and-frame filter press, an intermediate tank, a steam conveying pipeline, a multi-effect evaporator, a fluidized drying bed, an air heater, a high-salinity wastewater collecting tank, an induced draft fan, a hydrochloric acid conveying pump, a slurry pump, an intermediate pump and a vacuum pump. By integrating the hydrochloric acid purification unit, the neutralization reaction unit, the solid-liquid separation unit and the evaporation drying unit, the byproduct hydrochloric acid and the carbide slag are converted into a high-purity calcium chloride product, so that the problems of low efficiency and secondary pollution caused by isolated waste treatment in a traditional treatment mode are effectively solved; the method has the advantages of realizing resource utilization of byproduct hydrochloric acid and carbide slag, reducing environmental pollution, reducing waste treatment cost, avoiding secondary pollution and the like.

The invention discloses an energy storage type multi-effect evaporator, and belongs to the technical field of evaporators. Comprising an evaporation cylinder filled with steel balls, and a preheating bin internally provided with a sewage pipe in a reciprocating manner, a steam outlet is formed in the top of the evaporation cylinder and is communicated to a steam inlet in the lower part of the preheating bin through a pipeline; a steam exhaust port is formed in the top of the preheating bin; an inlet and an outlet of the sewage pipe are respectively arranged outside the preheating bin in a penetrating manner; and an outlet of the sewage pipe is communicated with a water distribution pipe arranged at the upper position in the evaporation barrel through a pipeline. According to the invention, the fire tube is arranged to guide flames upwards, so that the heating speed and effect are greatly improved; a chimney effect is formed to suck flames, and overall combustion is more vigorous; the volleyball mechanism is arranged at the lower position, the steel balls at different positions are taken out, and operation is convenient and efficient; a ball feeding mechanism is arranged for feeding the interior, and balls are sequentially fed into different positions; uniformity of all positions in the ball adding process can be guaranteed, and the ball adding effect is good.

This disclosure describes energy efficient process to distill a process stream in a production facility. A process uses multiple effect evaporators, ranging from one evaporator to eight evaporators in each effect. The process arrangement shows an example of four effect evaporators, with a zero-effect evaporator having a single evaporator, a first-effect evaporator having a set of three evaporators, a second-effect evaporator having a set of three evaporators, and a third-effect evaporator having a set of evaporators to create condensed distillers solubles.

The invention relates to an acidic copper-containing waste liquid and aluminum mud collaborative recovery treatment system and process, the treatment system comprises an acidic copper-containing waste liquid collecting tank, the acidic copper-containing waste liquid collecting tank is sequentially connected with a first filter and a preheater, the preheater is respectively connected with a condenser and a multi-effect evaporator, and the first filter is connected with a second filter. The multi-effect evaporator is sequentially connected with a transfer tank, a washer and a second filter; the second filter is respectively connected with a sodium chloride solution storage tank and a copper sulfate preparation unit; the treatment system further comprises an aluminum mud bin connected with the acidification reaction kettle, the acidification reaction kettle is respectively connected with the first filter press and the condenser, the first filter press is connected with the evaporation concentration chamber, and the evaporation concentration chamber is respectively connected with the crystallized aluminum chloride preparation unit and the liquid polyaluminum chloride preparation unit. According to the treatment system and the treatment process, the acidic copper-containing waste liquid generated in the production process of the printed circuit board and the aluminum mud generated in the surface treatment industry are subjected to cooperative treatment, the recovery treatment efficiency is improved, resource utilization is achieved, and economic benefits are achieved.

The utility model belongs to the technical field of biochemical engineering separation, and particularly provides a production system for solvent-free extraction of pentamethylene diamine in fermentation liquor, which comprises at least one decarburization tank, an alkalization tank, filtering equipment and a multi-effect evaporator which are connected in sequence, a discharge pipe at the bottom of the multi-effect evaporator is connected to a scraper evaporator, and the scraper evaporator is connected with the alkalization tank. A gas phase pipeline of the scraper evaporator is connected to the first rectification device; and a gas-phase pipeline at the top of the multi-effect evaporator is connected to the second rectifying tower. The production system for solvent-free extraction of pentamethylene diamine in fermentation liquor can reduce the use amount of alkalized materials, and is low in energy consumption and high in device operation stability.

The application provides a waste heat utilization system based on alumina production, which comprises a heat pump unit, a preheating desalted water tank and a heating desalted water tank; the input end of the heat pump unit is used for connecting the end of a multi-effect evaporator in alumina production, so as to recover the waste heat of exhaust steam generated in the last effect in the process of producing alumina by the multi-effect evaporator; the first output end of the heat pump unit is connected with the heating desalted water tank, the preheating desalted water tank is connected with the heating desalted water tank through a pipeline, and the preheating desalted water tank is used for providing desalted water; the heat pump unit is used for transmitting the waste heat of exhaust steam to the heating desalted water tank, and heating the desalted water of the heating desalted water tank by using the waste heat of exhaust steam. The system of the application utilizes the characteristic that the desalted water needs to be heated when being added into a desalted water receiver, for example, an oxygen removal tank, and uses the waste heat of exhaust steam at the end of the multi-effect evaporator in alumina production to heat the desalted water of the heating desalted water tank, so that the resources are effectively utilized and the economic benefits are improved.

Systems and methods for separating a mixture comprising an organic liquid and water with a separation system comprising a multiple-effect evaporator and a membrane module (hybrid membrane distillation scheme / system). The systems and methods involve finding the optimal location for slip-stream withdrawal from the multiple-effect evaporator system and optimal location of retentate return to the multiple-effect evaporator system.

The present application relates to a kind of acidic copper-containing waste liquid, aluminium mud collaborative recovery processing system and processing process, processing system includes acidic copper-containing waste liquid collection tank, acidic copper-containing waste liquid collection tank is sequentially connected first filter, preheater, preheater is connected condenser and multiple-effect evaporator respectively, multiple-effect evaporator is sequentially connected transfer tank, scrubber, second filter, and second filter is connected sodium chloride solution storage tank and copper sulfate preparation unit respectively;Processing system further includes the aluminium mud bin connected with acidification reaction kettle, and acidification reaction kettle is connected first filter press and condenser respectively, and first filter press is connected evaporation concentration chamber, and evaporation concentration chamber is connected crystalline aluminium chloride preparation unit and liquid polyaluminium chloride preparation unit respectively.The present application processing system and processing process are generated in the production process of printed circuit board acidic copper-containing waste liquid, aluminium mud generated in surface treatment industry are collaboratively treated, improve recovery processing efficiency, realize resource utilization, with economic benefit.

The utility model relates to a tin stripping waste liquid recovery processing device which comprises a sedimentation tank, the sedimentation tank is connected with a new tin stripping liquid regeneration kettle through an oxidation tank, a centrifugal machine, a buffer tank, a multi-effect evaporator and a condenser in sequence, the centrifugal machine is further connected with a filter through a pyrolysis tank and washing equipment in sequence, and the filter is respectively connected with a dryer and a first post-processing tank. And the first post-treatment tank is also respectively connected with a second post-treatment tank and the multi-effect evaporator, and the second post-treatment tank is connected with an inlet of the new tin stripping liquid regeneration kettle. According to the recovery treatment device for the tin stripping waste liquid, the tin stripping waste liquid is recycled, dissolved tin elements, iron elements and copper elements are all recovered, maximum utilization of resources is achieved, no other waste is generated in the recovery process, and secondary pollution is eliminated.

The invention relates to an energy-saving and environment-friendly intermittent pulping and cooking process which comprises the following steps: performing stepped heating type cooking on wood chips and cooking liquor to prepare slurry; after cooking is finished, reverse heat exchange is conducted on the dilute black liquor and the pulp, and hot black liquor is replaced; then, dilute black liquor is introduced again, and warm black liquor is replaced; the warm black liquor can be used as a material for preparing the cooking liquor; the hot black liquor is subjected to flash evaporation to remove 10-15% of moisture, the concentration of the hot black liquor is increased to 18-21 Be degrees, and the flash-evaporated hot black liquor firstly enters a quadruple-effect down-flow multi-effect evaporator to be concentrated to 28-30 Be degrees and then enters a sextuple-effect falling film evaporator to be concentrated to 65% or above; wherein secondary steam generated by flash evaporation is used as a first-effect heat source of the quadruple-effect down-flow multi-effect evaporator after liquid drops are removed through the steam-water separator. According to the method, flash secondary steam is combined to drive the first effect of the multi-effect evaporator, hot black liquor pretreatment concentration optimization alkali recovery and the like, so that energy gradient utilization is sufficient, comprehensive energy consumption is greatly reduced, and the win-win situation of environmental protection and resource recycling is achieved.

The utility model discloses a multi-effect evaporator for desulfurization wastewater treatment, which comprises a first-stage evaporation tank, a second-stage evaporation tank and a third-stage evaporation tank are arranged beside the first-stage evaporation tank, a heating tank is arranged at the front end of the first-stage evaporation tank, cold water is arranged in the heating tank, an air outlet is arranged on the heating tank and is connected with a first steam inlet, and the third-stage evaporation tank is connected with a second steam inlet. An interlayer is arranged on the outer side of the heating tank, flue gas entering the desulfurizing tower flows in the interlayer, a steam outlet in the third-stage evaporating tank is connected with a water pool, and the water pool is used for preparing desulfurizing slurry. According to the utility model, high-temperature flue gas is used for heating water to form steam for the evaporation tank, and the steam passing through the evaporation tank is used for preparing desulfurization slurry, so that the heat utilization of the high-temperature flue gas is realized, the heating time and energy of the desulfurization slurry are reduced, and the overall energy efficiency is improved.

A bioprocessing facility that includes: a source of one or more stillage compositions; a multi-effect evaporator system including at least a final-effect evaporator; and an anaerobic digestion system in fluid communication with the final-effect evaporator. The final-effect evaporator is configured to receive at least a portion of at least one stillage composition as feed. The final-effect evaporator is also configured to produce a vapor composition and a concentrated stillage composition. The anaerobic digestion system is configured to receive and digest at least a portion of the concentrated stillage composition to produce a biogas and an anaerobic digestion digestate composition. The multi-effect evaporator system includes at least one effect evaporator prior to the final-effect evaporator that is configured to receive at least a portion of the anaerobic digestion digestate composition as feed. Related methods of producing biogas from one or more stillage compositions.

The utility model discloses a multi-effect evaporation wastewater treatment device, and relates to the technical field of wastewater treatment. The device comprises a filter box, a purification box and a gas-liquid separator, a heat exchange and heat preservation assembly is clamped and fixed to the peripheral surface of the filter box, the purification box is arranged on one side of the filter box, a heating furnace is clamped and fixed to the peripheral surface of the purification box, a high-pressure pump penetrates through the top of the peripheral surface of the heating furnace in a clamped mode, and a ventilation pipe penetrates through the top of the high-pressure pump in a clamped mode; a plurality of gas spraying pipes penetrate through and are clamped to the other end of the ventilation pipe; and a gas-liquid separator is arranged on one side of the purification box. By arranging the filter box, the purification box and the gas-liquid separator, the problems that a multi-effect evaporator improves the evaporation efficiency of waste water by heating the waste water, the needed heating time is long and the treatment efficiency is low when a large amount of waste water is heated, and a plurality of pipelines need to be used for transporting high-temperature air when the waste water is heated for multiple times, so that the waste water is wasted are solved. And part of heat is lost in the transportation process.

The invention relates to the technical field of multi-effect evaporators, in particular to an online sampling and detecting device for multi-effect seawater desalination, which comprises at least two evaporators, communicating pipes are arranged between the evaporators, each evaporator comprises a heating tank, a separating tank and a vacuum sampling tank, an inlet electromagnetic valve and an outlet electromagnetic valve are respectively arranged between the vacuum sampling tank and each communicating pipe, the inlet electromagnetic valve is communicated with one side, close to the previous-effect evaporator, of the communicating pipe, the outlet electromagnetic valve is communicated with one side, close to the next-effect evaporator, of the communicating pipe, and distilled water samples are collected by utilizing pressure difference through the vacuum sampling tank and the electromagnetic valves. On-line conductivity meter detection is combined, manual sampling and testing can be carried out when abnormity occurs, cyclic operation is carried out for multiple times per hour, auxiliary equipment such as a vacuum pump is not needed, stable operation of the system is not affected, leakage effect chambers can be rapidly detected and accurately positioned on line, maintenance time is shortened, shutdown loss is reduced, cost is low, and energy conservation and environmental protection are achieved.

The invention relates to a marine nuclear waste heat driven compact water and oxygen making system and a control method, and the system comprises a water making unit which comprises a multi-effect evaporator connected to a nuclear energy secondary loop system, the multi-effect evaporator heats seawater to generate steam and condenses the steam into fresh water, and the multi-effect evaporator is connected with a purification device for purifying the fresh water; the oxygen generation unit comprises a solid oxygen candle oxygen generation module and an electrolyzed water oxygen generation module, the solid oxygen candle oxygen generation module takes sodium chlorate as an oxygen source and generates oxygen through a thermal decomposition reaction, and pure water purified by the electrolyzed water oxygen generation module generates oxygen through electrolyzed water; and the control unit dynamically controls the pure water produced by the water production unit to the oxygen production unit according to the ship operation working condition, the oxygen demand and the electrical load, and controls the start and stop and the oxygen production of the solid oxygen candle oxygen production module and the electrolyzed water oxygen production module. The oxygen generation mode can be switched according to the operation state of the nuclear energy ship, the solid oxygen candle oxygen generation module is preferentially used for generating oxygen when power is insufficient, and when power is sufficient, the solid oxygen candle oxygen generation module and the solid oxygen candle oxygen generation module are used simultaneously to better meet different navigation requirements.

The invention provides a corn soaking water evaporation system based on corn starch production, and relates to the technical field of corn starch production equipment. The corn soaking water evaporation system based on corn starch production comprises a bottom frame, a bearing plate is fixed to the upper portion of the bottom frame, a storage tank is installed on one side of the bearing plate, a preheating recycling structure is arranged in the storage tank, a cooling tank is installed on the other side of the bearing plate, and a cooling structure is arranged in the cooling tank. And a multi-effect evaporator is arranged in the middle of the bearing plate. According to the corn soaking water evaporation system based on corn starch production, corn soaking water feed liquid can be conveyed into the multi-effect evaporator through the preheating recovery structure, heating evaporation processing can be conducted on the corn soaking water feed liquid, dirt in the feed liquid can be removed in the process, redundant steam can be cooled through the cooling structure, and the cooling effect is good. The evaporation effect on the feed liquid is improved.