320results about "Multiple-effect evaporation" patented technology

The invention relates to the field of enhanced intrinsic safety in a gas-liquid phase mixing process, and discloses a gas-liquid mixing device and a gas-liquid mixing vaporization method. The device comprises a shell, a Venturi gas-phase turbulent mixing section, a liquid-phase atomizing mixing section and a static mixing section are sequentially arranged in the shell in the flowing direction of material flow, the Venturi gas-phase turbulent mixing section comprises a reducing structure and an expanding structure, a liquid inlet component is arranged at the position, close to the reducing structure, of the expanding structure, and the static mixing section is connected with the liquid inlet component. The liquid phase atomization mixing section is provided with a membrane tube base body, the membrane tube base body is provided with a plurality of inner holes in the axial direction, the surfaces of the inner holes are coated with nanometer materials, and the static mixing section is provided with filler. According to the device, the liquid-phase oxidizing agent and the gas-phase oxidizing agent are subjected to multi-stage mixing vaporization, the atomization degree of the liquid phase is increased, the uniformity degree of the obtained mixed gas phase is improved, meanwhile, the device can be quenched after burning explosion by coupling a porous membrane pipe and filler, and the burning explosion risk in the mixing vaporization process is reduced.

The invention belongs to the technical field of impurity separation, and particularly discloses a method for separating and purifying impurities in a process for preparing glyoxylic acid through oxalic acid electrolysis, a crystallization kettle is included, an isolation device is arranged in the crystallization kettle, and the isolation device comprises a conical top cover, a conveying pipe, an annular filter screen, a directional conveying assembly and a sealing assembly; the conical top cover is arranged at the axis of the crystallization kettle, an opening of the conical top cover faces downwards, and a plurality of fixing rods are fixedly connected between the top of the conical top cover and the inner wall of the side face of the crystallization kettle. According to the method, glyoxylic acid product solutions with different concentration specifications and the high-purity glyoxylic acid crystal can be obtained after the electrolyte is sequentially subjected to pre-evaporation, electrodialysis, secondary evaporation, cooling crystallization, solid-liquid separation, washing and drying and other procedures, so that the prepared high-purity glyoxylic acid crystal can be popularized and applied in the field of high-end medicine.

The utility model relates to the technical field of hydrochloric acid desorption, in particular to a hydrochloric acid desorption device which comprises a hydrochloric acid desorption tower, and the top of the hydrochloric acid desorption tower is sequentially communicated with a primary condensing device, a secondary condensing device, a freezing device, a demister and a hydrogen chloride buffer tank; one side wall of the hydrochloric acid desorption tower is communicated with a hydrochloric acid storage tank; the side wall of the hydrochloric acid desorption tower is also communicated with a calcium chloride solution storage tank; a bottom liquid outlet of the hydrochloric acid desorption tower is communicated with a first inlet of the thermosyphon reboiler, the thermosyphon reboiler is provided with a first outlet and a second outlet, the first outlet is communicated with a liquid inlet of the hydrochloric acid desorption tower, and the second outlet is sequentially communicated with the multi-effect evaporation device and the flash separation tank; and the flash separation tank is respectively communicated with a calcium chloride solution storage tank and a second inlet of the thermosyphon type reboiler. According to the utility model, the equipment investment is reduced, the concentration efficiency of the calcium chloride solution is improved, the energy consumption is reduced, and calcium chloride is prevented from flowing back into the desorption tower to cause blockage.

The demister cleaning device comprises a first-effect evaporation module, a second-effect evaporation module, a third-effect evaporation module and a feeding pipe, the first-effect evaporation module, the second-effect evaporation module and the third-effect evaporation module are sequentially connected through the feeding pipe, and a third-effect demister in the third-effect evaporation module is connected to a condenser and a centrifugal water vapor compressor through a three-way pipe. The centrifugal water vapor compressor is connected into a first-effect heater in the first-effect evaporation module through a pipeline; a bypass valve is connected to the pipeline between the condenser and the first-effect heater and connected with the centrifugal water vapor compressor in parallel. A top inlet of the triple-effect demister is connected with a high-pressure water inlet pipe. Secondary steam generated by triple effect is recycled instead of directly entering the condenser to be condensed, the recycled secondary steam enters the centrifugal steam compressor to pressurize the triple effect secondary steam, and the triple effect secondary steam is supplied to the first-effect heater to be used for heating materials to replace original live steam, so that the purposes of saving energy and reducing consumption are achieved.

The invention belongs to the technical field of chemical fertilizer production and livestock feed, and particularly relates to a combined preparation method of water-soluble potassium sulfate and feed-grade potash magnesium sulphate fertilizer. According to the method, the picromerite concentrate wet material is taken as an initial raw material, the picromerite concentrate wet material with relatively low potassium and magnesium content is purified into high-grade potassium sulfate and the potash magnesium sulphate fertilizer by utilizing hot melt mother liquor at different mother liquor points through multi-stage hot melt and multi-stage vacuum evaporative crystallization, so that efficient distribution and conversion of potassium and magnesium elements in the raw material are realized, resource waste is avoided, and the production cost is reduced. The comprehensive utilization rate of raw materials is greatly improved. Two high-added-value products, namely the water-soluble potassium sulfate and the feed-grade potassium-magnesium fertilizer, are prepared at the same time, and the blank of combined preparation of raw materials required by agriculture and animal husbandry is filled.

The invention belongs to the technical field of heat pump rectification, and particularly relates to a double-effect heat pump rectification system which comprises a first-effect rectification tower feeding pump connected with a preheater, the preheater is connected with a first-effect rectification tower, the first-effect rectification tower is connected with a gas-liquid separator through a screw compressor, and the gas-liquid separator is connected with a tail gas condenser through a second-effect falling film reboiler. The second-effect falling film reboiler is connected with a first-effect reflux discharge pump through a first-effect reflux tank, and the first-effect reflux discharge pump is connected with the preheater; the first-effect rectifying tower is respectively connected with a first-effect falling film reboiler and a first-effect falling film circulating pump; the first-effect rectifying tower is connected with a second-effect rectifying tower through a first-effect tower kettle discharging pump; the first-effect falling film reboiler is connected with a second-effect reflux discharge pump through a second-effect reflux tank; the second-effect falling film reboiler is connected with a second-effect falling film circulating pump and a second-effect rectifying tower, the second-effect falling film reboiler is connected with a second-effect rectifying tower kettle discharging pump through the second-effect rectifying tower, and the second-effect rectifying tower is connected with the first-effect falling film reboiler. According to the invention, double-effect rectification and heat pump rectification are successfully combined, and the cost is low.

The utility model relates to an ammonium phosphate evaporation and concentration system and belongs to the field of chemical engineering. The system comprises a concentrated ammonium phosphate pump, a concentrated ammonium phosphate storage tank, an I-effect evaporation chamber, an I-effect heater, an I-effect circulating pump, an I-effect charging pump, an II-effect evaporation chamber, an II-effect heater, an II-effect circulating pump, an II-effect charging pump, an III-effect evaporation chamber, an III-effect heater and an III-effect circulating pump. By adopting the system and the method, low-pressure saturated live steam is utilized to indirectly heat dilute ammonium phosphate to generate secondary steam and tertiary steam to continuously heat the dilute ammonium phosphate to produce concentrated ammonium phosphate. Compared with a two-effect evaporation concentration process flow which is widely used at present, the three-effect countercurrent evaporation concentration process flow saves energy by 47%. The utility model aims at saving energy, reducing consumption, reducing carbon emission of a production device and protecting the environment.

The application provides a multi-effect desalination system and relates to the technical field of multi-effect evaporation. The multi-effect desalination system can have two working conditions under the action of a first valve, a second valve and a third valve. The first working condition is that the third valve is closed, and the first valve and the second valve are opened. At this time, low-pressure steam discharged by a low-pressure steam generation device is directly introduced into a first-effect evaporator as heating steam. A second condenser can condense part of secondary steam generated by an mth-effect evaporator, so that the pressure in the first condenser and the second condenser is balanced, and the two can work under normal working conditions. The second working condition is that the second valve is opened, the first valve and the third valve are closed, and the second condenser stops working. Medium-pressure steam discharged from a medium-pressure steam generation device is introduced into the mth-effect evaporator to inject the secondary steam generated by the mth-effect evaporator through a steam heat compressor. After mixing, the medium-pressure steam is introduced into the first-effect evaporator as heating steam, so that the energy of the medium-pressure steam can be effectively utilized, and a higher water production ratio is obtained.

The utility model provides a desulfurization waste water hot concentration and flue gas drying zero emission system, which comprises a heat source unit, a flue heat exchanger and a steam pressure stabilizing module, and low-temperature flue gas is used as a heat source to heat water to generate low-temperature saturated steam; the multi-effect evaporation unit comprises a plurality of evaporation modules, and the evaporation modules are arranged in series to realize step-by-step heating and concentration of wastewater; the conditioning unit is used for adjusting the pH value of the wastewater concentrated solution; conveying the conditioned wastewater concentrated solution to a flue gas drying unit to be evaporated and dried; the condensation vacuum unit is connected with a steam outlet of the evaporation module at the tail end of the multi-effect evaporation unit and is used for condensing and recycling steam; and the condensate water tank is used for collecting condensate water of each stage of evaporation module of the multi-effect evaporation unit. According to the utility model, a wastewater zero-discharge technology is formed through a high-salinity wastewater zero-discharge technology of coupling low-temperature flash evaporation concentration reduction with rotary atomization drying, so that zero discharge of high-salinity wastewater under various process conditions and unit loads is stably realized, and the operation cost of a zero-discharge system is reduced.

The application discloses a continuous evaporator and a working method thereof, relates to the technical field of evaporators, and comprises a primary evaporator, a body, an auxiliary component and a matching component, the primary evaporator is communicated with the body through a conveying pipe, a heater is arranged on the primary evaporator, a fixed plate is fixedly connected to the inner wall of the body, a base is fixedly connected to the bottom surface of the body, the auxiliary component is arranged in the body and comprises four auxiliary blocks, intermittent vibration of the four auxiliary blocks is generated through the arrangement of the auxiliary component, the matching component is drivingly connected to the auxiliary component and comprises a displacement plate slidingly connected to the inner wall of the body, the displacement plate is reciprocatingly displaced in the vertical direction and has the features of slow upward displacement and rapid downward displacement through the arrangement of the matching component, and the auxiliary component comprises a main shaft; through mutual cooperation between the above-mentioned structures, the application has the effects of improving overall evaporation efficiency, shortening the time required for boiling of the secondary evaporator and reducing the energy consumption demand.

The bottom of a first-effect heater, the bottom of a second-effect heater and the bottom of a third-effect heater are connected with a feeding pipeline, and discharging openings in the top sides of the first-effect heater, the second-effect heater and the third-effect heater are connected with a first-effect evaporator, a second-effect evaporator and a third-effect evaporator through first horizontal pipelines respectively. Bottom discharge ports of the first-effect evaporator, the second-effect evaporator and the third-effect evaporator are respectively communicated with the bottom side of the heater through return pipelines, and the tops of the first-effect evaporator, the second-effect evaporator and the third-effect evaporator are respectively connected with a first-effect separator, a second-effect separator and a third-effect separator through steam outlet pipelines. Liquid outlets at the bottoms of the first-effect separator, the second-effect separator and the third-effect separator are respectively connected with the top sides of the first-effect evaporator, the second-effect evaporator and the third-effect evaporator, and the third-effect concentrator disclosed by the utility model has the advantages of compact structural design, convenience in maintenance, flexibility in use, high fault tolerance, stability in system operation, high reliability and the like.

A membrane assembly for extracting water from ambient air or seawater includes a manifold tube surrounded by a membrane web arranged about the manifold tube in a spiral configuration. The manifold tube has an entrance end, an exit end, web entrance ports, and web exit ports. The web membrane has a first osmosis membrane, a second osmosis membrane, a barrier layer positioned between the first osmosis membrane and the second osmosis membrane to form a first fluid flow conduit in fluid communication with the web entrance ports and a second fluid flow conduit in fluid communication with the web exit entrance ports and an end of the first fluid flow conduit. The web membrane also has a first porous structural material layer positioned within the first and second fluid flow conduit, and a second porous structural material layer positioned about the first osmosis membrane.

The embodiment of the application provides a kind of integrated salt-containing wastewater concentration reduction system, including high-temperature heat mass generation absorption integrated tower and low-temperature heat mass generation absorption integrated tower, in the application, the wastewater that can be same or different in high-temperature heat mass generation absorption integrated tower and low-temperature heat mass generation absorption integrated tower can be classified or graded treatment, while, water is heated by gas step by step, and different quality clean water can be obtained, which is beneficial to match sewage grade and the cascade utilization of clean water, to realize the cascade treatment of sewage.

The present disclosure provides a preparation system and a preparation method for xylitol crystals. In the preparation system, outlets of a first centrifuge are connected with an inlet of a hot air drying tank and an inlet of a primary mother liquor storage tank through pipelines, respectively. Outlets of a second centrifuge are connected with an inlet of a second fluidized bed dryer and an inlet of a secondary mother liquor storage tank through pipelines, respectively. An outlet of a dicrystalline sugar dissolution tank is connected with an inlet of a blending tank through a pipeline. An outlet of a tricrystalline sugar dissolution tank is connected with the inlet of the primary mother liquor storage tank. The blending tank is provided with an inlet for a raw material of xylitol hydrogenation solution. An output of an outlet of a first fluidized bed dryer is prepared xylitol crystals.

A cross-feed method for evaporating diluted sugar juice in beet sugar production includes the following steps: The purified diluted sugar juice is fed into a four-effect evaporator for evaporation and concentration; the sugar juice output from the four-effect evaporator is fed into a first-effect evaporator for further evaporation and concentration, using exhaust steam from the power plant to heat the first-effect evaporator, with all secondary steam from the first-effect evaporator supplied as a heat source to the second-effect evaporator; the sugar juice output from the first-effect evaporator is fed into the second-effect evaporator for further evaporation and concentration, with all secondary steam from the second-effect evaporator supplied as a heat source to the third-effect evaporator; the sugar juice output from the second-effect evaporator is fed into the third-effect evaporator for further evaporation and concentration, with 60% of the secondary steam from the third-effect evaporator used as a heat source to the fourth-effect evaporator; the sugar juice output from the third-effect evaporator is fed into a fifth-effect evaporator for further evaporation and concentration, with 80% of the secondary steam from the fourth-effect evaporator used as a heat source to the fifth-effect evaporator. This invention offers high production efficiency, higher steam heat utilization, and good production stability.

The application discloses a kind of liquor vinasse and high-concentration wastewater comprehensive recovery system, including tube bundle dryer, steam source, mixing auger, feed auger, multi-effect evaporation system, surface condenser, wastewater collection tank and vacuum pump, steam source provides steam for tube bundle dryer, tube bundle dryer is used to dry the mixture of vinasse and high-concentration wastewater after evaporation concentration, after washing, waste gas is transported to multi-effect evaporation system, and multi-effect evaporation system uses the waste gas after washing as heat source to evaporate and concentrate liquor high-concentration wastewater, and mixing auger is used to mix vinasse and concentrated liquor high-concentration wastewater.The application uses the waste gas generated when drying vinasse by tube bundle dryer as heat source to concentrate liquor high-concentration wastewater, and after mixing the concentrated wastewater thick slurry and vinasse, they are dried together in tube bundle dryer, and after crushing, the dried vinasse can be used to produce feed and the like, so as to realize the recycling of vinasse and high-concentration wastewater in liquor production process.

The utility model relates to an aluminum oxide mother liquor evaporation system capable of reducing multi-effect evaporation steam consumption, which comprises a plurality of evaporators which are sequentially arranged, a steam jet mixer, a steam outlet pipe and a steam outlet pipe, the steam jet mixer is provided with a steam inlet, a steam suction port and a mixed steam outlet connected with the first-effect evaporator, the aluminum oxide mother liquor evaporation system further comprises a steam supplementing pipeline connected between the steam suction port and the last-effect secondary steam pipeline, and a steam compressor is arranged on the steam supplementing pipeline. Due to the fact that the last-effect secondary steam contains more latent heat, by means of the scheme, the last-effect secondary steam can be used for replacing part of new steam, the latent heat of the last-effect secondary steam is effectively recycled, and energy consumption of an evaporation system is reduced; and meanwhile, the amount of last-effect secondary steam entering the water cooler can be reduced, so that the load of a circulating water system of the water cooler is reduced, and the operation cost of the circulating water system is reduced.

This invention provides a dual-I-effect heating chamber system for an evaporator, comprising a separation chamber, two heating circulation lines, a water tank, and a downstream material conveying pipe. The separation chamber includes a feed end, a discharge end, and a steam outlet. The feed end is connected to the upstream material input pipe. Both heating circulation lines are connected to the discharge end and the steam outlet, and are connected in parallel. Each heating circulation line can independently circulate both material and gaseous substances. Operating valves are installed on the heating circulation lines to control their operation. The water tank is connected to both heating circulation lines to circulate gaseous substances. The downstream material conveying pipe is also connected to both heating circulation lines. This invention enables normal cleaning of the heating circulation lines without interrupting production.

The utility model discloses a triple-effect countercurrent evaporation system which comprises a first evaporation assembly, a second evaporation assembly, a third evaporation assembly and an output assembly, and the first evaporation assembly comprises a triple-effect separator, a triple-effect heater and a third circulating pump; the second evaporation assembly comprises a second-effect separator, a second-effect heater and a second circulating pump; the third evaporation assembly comprises a first-effect separator, a first-effect heater and a first circulating pump; the output assembly comprises a thickening kettle, a centrifugal machine and a mother liquor tank which are sequentially communicated, the thickening kettle is used for stirring materials, the centrifugal machine is used for separating the materials, and the mother liquor tank is used for storing mother liquor generated by separating the materials; wherein the output end of the third-effect separator is communicated with the second-effect separator, the output end of the second-effect separator is communicated with the first-effect separator, the output end of the first-effect separator is communicated with the thickening kettle, and the output end of the mother liquor tank is communicated with the second-effect separator. According to the triple-effect countercurrent evaporation system, blockage can be avoided, and the production efficiency is improved.

The present application relates to the technical field of urea production, and is a urea system flushing evaporation flushing method and device. The urea system flushing evaporation flushing method pre-raises the temperature of the evaporation system before flushing, prevents excessive crystalline substances from blocking the pipeline by intermittently flushing the relevant parts of the second-stage evaporation separator, the top gas phase pipeline of the second-stage evaporation separator, the first-stage evaporation separator and the top gas phase pipeline of the first-stage evaporation separator, ensures that the urea evaporation system runs more stably, and recovers ammonia and other substances in the gas phase separated by evaporation after condensation to reduce the emission of pollutants. The present application has a reasonable and compact structure, a simple process, simple operation, low equipment cost, conforms to the development concept of environmental protection and resource utilization, not only makes the urea product meet the national standard GB2440-2017, but also makes the evaporation system run more stably.

The application discloses a method and system for preparing ammonium bifluoride from hydrofluoric acid waste liquid, which comprises the following steps: (1) adding the hydrofluoric acid waste liquid into an electrolytic cell, transporting the electrolytic cell to a first reaction kettle after electrodepositing treatment, adding silicon dioxide, then stirring and reacting, and returning the generated silicon tetrafluoride and hydrofluoric acid into a spray tower to react and then return to the first reaction kettle, and then adding ammonia water to perform neutralization reaction; (2) filtering the solid-liquid mixture I, evaporating and drying the obtained filtrate I to obtain an ammonium nitrate product, and returning the obtained filter cake I to a second reaction kettle, adding ammonia water to adjust the pH value, and then stirring and reacting; (3) filtering the solid-liquid mixture II, returning the obtained filter cake II to the first reaction kettle for reuse, transporting the obtained filtrate II to a reactor, adding hydrofluoric acid to perform reaction, and then performing evaporation and drying treatment to obtain an ammonium bifluoride product. The method is simple in process, low in energy consumption, convenient to operate and convenient for industrialized production and application.

The utility model relates to the technical field of evaporators, and discloses an automatic water replenishing mechanism of a triple-effect neutralization evaporator, which comprises a main tank body, a limiting cavity is fixed at one end of the top of the main tank body, a filter plate is fixedly connected at one end of the inner side of the limiting cavity, and a first filter layer is clamped at one end of the filter plate. A second filter layer is arranged at one end of the first filter layer, and a third filter layer is arranged at one end of the second filter layer. When water is supplemented, water flow sequentially penetrates through the third filter layer, the second filter layer and the first filter layer to be filtered, the filtered water flow flows into the water storage clamping cavity after penetrating through the filter plate, the first motor drives the water supply fan to rotate, and the filtered water flow is pumped into the water pumping cavity through the water pumping pipe by suction force generated by the rotating water supply fan. And the water is conveyed into the conveying pipe through the water replenishing pipe under the pushing of the water conveying fan, so that water can be quickly replenished into the triple-effect evaporator, the water flow can be conveniently filtered, and the manufacturing effect of the evaporator can be improved.

The invention provides a calcium-sodium separation process for high-salinity wastewater in polycrystalline silicon production, which comprises the following steps: after being subjected to pretreatment, multi-medium filtration and evaporation water inlet buffer pool, the high-salinity wastewater is preheated by a wastewater preheater and enters a multi-effect evaporation system for first-effect evaporation and second-effect evaporation concentration; when the sodium chloride solution at the second-effect evaporation part is saturated, a stream of solution flows out by a transfer pump and enters a sodium salt thickener for concentration; the solution concentrated by the sodium salt thickener enters a centrifugal machine to separate out sodium chloride crystals; the calcium chloride solution rich in calcium ions separated by the centrifugal machine returns to the second-effect evaporation and enters the first-effect evaporation to be further concentrated, and calcium chloride crystals are output through a crystallization slicing machine.

The present application relates to water pollution control and treatment technical field, specifically to a kind of evaporation treatment equipment suitable for ammonium chloride high-salt wastewater, including evaporator, and evaporator includes shell and multiple heat exchange parts in shell.The heat exchange part includes partition and multiple heat exchange pipes, and the heat exchange pipe includes upper pipe, middle pipe and lower pipe which are sequentially arranged in vertical direction, and the upper pipe is installed on the partition, and the middle pipe is respectively connected with the upper pipe and the lower pipe ball hinge.A kind of evaporation treatment equipment suitable for ammonium chloride high-salt wastewater of the present application utilizes the length change of middle pipe of heat exchange pipe in vertical direction after rotation, dynamically compensates the problem of empty pipe caused by liquid level drop, prolongs the effective heat exchange time of upper pipe, shortens the empty pipe dry burning time, avoids the occurrence of large-area empty pipe dry burning situation, reduces the damage of high-temperature steam to heat exchange pipe, prolongs the service life of heat exchange pipe, enhances the stability of ammonium chloride high-salt wastewater evaporation treatment equipment, and helps the progress of water pollution control and treatment work.

The utility model relates to the technical field of chlor-alkali chemical industry, and particularly discloses a caustic soda evaporation and concentration system. The system comprises a first-effect falling-film evaporator, a second-effect falling-film evaporator and a third-effect falling-film evaporator which are connected in sequence, and a condensate outlet of a heat exchanger of the third-effect falling-film evaporator is provided with a first flash tank. A second flash tank is arranged between a condensate outlet of the second-effect falling film evaporator heat exchanger and an inlet of the first-effect falling film evaporator heat exchanger, the first-effect falling film evaporator, the second-effect falling film evaporator and the third-effect falling film evaporator are combined, secondary steam generated by the previous stage is used as a heating heat source of the next stage, the steam utilization rate is increased, and the energy consumption is reduced. A flash tank is additionally arranged at a condensate outlet of a heat exchanger of a second-effect falling film evaporator, condensate generated by second-effect is subjected to secondary flash evaporation in a negative-pressure state of second-effect secondary steam and then used for third-effect alkali liquor heat exchange, and latent heat of the condensate is fully utilized.

This invention relates to the field of evaporator crystallizer technology, and more particularly to an MVR evaporator crystallizer and its usage method. The evaporator crystallizer includes a body, a sealing cover plate fixedly connected to the top of the body, and a sealing base plate fixedly connected to the bottom of the body. It also includes an anti-clogging mechanism for the evaporator crystallizer feed and a steam preheating assembly. A filter assembly is installed on the inner wall of a support assembly, a flow self-regulating assembly is installed within a limiting assembly and connected to the support assembly, and a steam preheating assembly is installed on the outer wall of the evaporator crystallizer body and connected to the limiting assembly. In this embodiment of the MVR evaporator crystallizer and its usage method, wastewater is heated and evaporated inside the evaporator crystallizer, removing moisture and concentrating residual substances. The generated high-temperature steam can be used to preheat the wastewater through the steam preheating assembly, thereby reducing pipe clogging problems in the evaporator crystallizer and effectively improving processing efficiency.

This utility model discloses an energy-saving forced-efficiency evaporation device for alumina production, including an evaporator flash evaporator, a forced circulation separator, a primary forced-efficiency heater, a feed mother liquor inlet, a discharge mother liquor pipe, and a secondary forced-efficiency heater. After the forced-efficiency circulation evaporation device is arranged, a primary forced-efficiency heater and a secondary forced-efficiency heater are respectively set at the inlet and outlet of the forced circulation separator. The area of ​​the two forced-efficiency heaters is half of the original area. The total area of ​​the two heaters will not be reduced, but the area of ​​a single forced-efficiency heater is reduced by 50%. Therefore, the amount of mother liquor required for circulation can be reduced by about 50%, and under ideal conditions, the flow rate of the forced-efficiency circulation pump can be reduced by about 50%.

The invention relates to the technical field of evaporation circulation devices, and discloses an extraction water triple-effect evaporation circulation device which comprises a separation chamber, a heating chamber is arranged in the separation chamber, and a conveying mechanism and a heating mechanism are arranged on the heating chamber; and the conveying mechanism comprises a heat exchange pipe and a magnetic ring, the heat exchange pipe is arranged in the heating chamber, and a first silica gel ring and a second silica gel ring are arranged at the upper end and the lower end of the heat exchange pipe correspondingly. By arranging the first silica gel ring and the second silica gel ring, when the heat exchange tube expands with heat and contracts with cold in the heating process, the vibration amplitude is enhanced under the action of a magnetic field by utilizing small-amplitude vibration caused by elastic force of the silica gel rings and matching the magnetic rings with N / S poles alternately arranged in the heating chamber with the heat exchange tube made of a magnetic stainless steel material; scale can be effectively prevented from being attached to the inner wall of the heat exchange pipe, heat transfer resistance is reduced, frequent shutdown cleaning is not needed, continuous and stable operation of the device is guaranteed, and the equipment maintenance period is prolonged.

The utility model discloses a process water circulating cooling system for treating desulfurization wastewater of a power plant. The process water circulating cooling system mainly comprises a cooling water pump unit and a condensing unit, the cooling water pump unit is composed of two cooling water pump branches which are connected in parallel, and each cooling water pump branch mainly comprises a cooling water pump; the condensation unit is composed of a head end condensate water trunk and a tail end condensate water trunk which are connected in parallel. Each condensate water trunk mainly comprises a condenser, a condensate water tank and a condensate pump which are connected in sequence. The input end of the condenser is connected with the output end of the cooling water pump unit; and the condensed water tank is connected with a condensed gas-liquid separator. As desulfurization process water is adopted, compared with a conventional circulating cooling water system, the circulating cooling water system disclosed by the utility model overcomes the defects of large occupied area, complex system and difficulty in management, and realizes simplification and flexibility of equipment. In addition, a desulfurization wastewater treatment cooling system and a desulfurization process water system are combined for use, so that occupied land and investment are saved, energy consumption is reduced, energy can be saved to the maximum extent, and energy conservation and emission reduction in the industrial production field are facilitated.