30 results about "Boiling tube" patented technology

The invention relates to the field of tower type solar heat power generation research, discloses a simulation device for a solar cavity type heat absorber, and is applicable to a simulation performance test of a cavity type heat absorber in the tower type solar heat power generation system. The simulation device comprises a drum and a hexagonal prism shaped heat absorbing cavity, wherein a side surface of the heat absorbing cavity is provided with a daylight opening; a dead backside wall, a left backside wall and a right backside wall of the heat absorbing cavity are arranged opposite to the daylight opening; a dead backside boiling tube, a left backside boiling tube and a right backside boiling tube are respectively arranged close to the dead backside wall, the left backside wall and the right backside wall; a superheat tube is arranged between the daylight opening and the dead backside wall; and the dead backside boiling tube, the left backside boiling tube, the right backside boiling tube and the superheat tube are respectively communicated with the drum. The simulation device is characterized in that the dead backside boiling tube, the left backside boiling tube, the right backside boiling tube and the superheat tube are made of stainless steel pipe coils which are directly heated by a power supply.

The invention discloses artificial cell membrane materials applied to photoinduction stem grafting and a synthesis method of the artificial cell membrane materials. The synthesis method of the artificial cell membrane materials comprises the following steps that 2-(dodecyl trithiocarbonate)-2- methyl propionic acid, dicyclohexyl carbodiimide, 4- dimethylamino pyridine and dichloromethane are added into a flask, all the components are stirred and dissolved under the protection of nitrogen, azide ethanol is dropwise added and stirred, washing is carried out through diluted hydrochloric acid and distilled water, solvents are removed through a reduced pressure distillation method, and a yellow oily liquid a is obtained; MPC, a midbody a, azo different nitrile and absolute ethyl alcohol are added into a boiling tube and are evenly dissolved, then after the nitrogen is removed through three times of 'vacuumizing-induction of highly pure nitorgen' operations on the boiling tube, and reaction away from light is carried out on the boiling tube in a sealed mode under the protection of highly pure nitrogen; the reaction liquid is precipitated through trichloromethane / diethyl ether mixed solvents, and solid products are collected. By means of the technical scheme, the artificial cell membrane materials have good biocompatibility, achieve the various effects of restraining of protein adsorption, anticoagulation, surface lubrication and the like, and have good medical prospects.

The invention discloses a starting and operating protection system of a solar cavity type heat absorber. The starting and operating protection system of the solar cavity type heat absorber comprises a protection structure of a vapor-water circulating system in a cavity type heat absorber pot and a protection structure of a cavity type heat absorber superheater; the protection structure of the vapor-water circulating system in the cavity type heat absorber pot is that: a pipeline is connected in parallel beside a high-temperature circulating pump of the vapor-water circulating system in the cavity type heat absorber pot; and the pipeline is directly connected with a boiler barrel and a boiling tube of the vapor-water circulating system in the cavity type heat absorber pot to form a naturalcirculation loop of the vapor-water circulating system. The protection structure of the cavity type heat absorber superheater is that: an inlet and an outlet of the cavity type heat absorber superheater are provided with a protection bypass receptively. The starting and operating protection system of the solar cavity type heat absorber can make the cavity type heat absorber start and operate safely with high heat flux density and ensures that the cavity type heat absorber operates normally and smoothly and that the performance data of the cavity type heat absorber is acquired.

The invention discloses a method for calculating soil cation exchange capacity. The method comprises the steps: 1, weighing a defined amount of samples, adding 50ml of 10.1mol / L ammonium fluoride solution, oscillating for 10min, and then filtering by using medium-speed filter paper to obtain filtrate; 2, sucking 10ml of filtrate and placing in a nitrogen fixing instrument boiling tube, distilling for 7min, and then titrating by using a hydrochloric acid standard solution; 3, calculating the cation exchange capacity of a soil sample according to the titration volume of the hydrochloric acid standard solution used in the step 2. The method has the beneficial effects that sample processing steps are simple, and oscillating and distilling steps are only required; no advanced soaking is required during sample treatment, the treatment time is only 17 min, at least 32 samples can be analyzed within two days; a result is within a standard value range, and the accuracy is relatively high.

A natural-circulation self-cleaning evaporation device is disclosed. A steel wire screw is mounted in an uplink heating pipe; a twisted strip screw is mounted in a downlink heating pipe. Fluidization balls are added into a circulation solution to realize high-efficient cleaning by the fluidization balls with a low concentration of 0.1%-3.0% in a spiral fluidization state. A boiling pipe is disposed above a heating chamber, is trumpet-shaped, prevents fluidization ball obstruction by adopting a converged section and a gradually-expanded section, and reduces the circulation resistance and the outlet kinetic energy loss. A shunting skirt is designed at the lower end of a lower pipe plate of the heating chamber. The circulation solution flowing downwards is shunted into a circulation main flow and a circulation auxiliary flow before the shunting skirt; the circulation auxiliary flow flows into and stirs the fluidization balls to form a fluidization state when passing through sieve pores on a sieve plate, which allows the fluidization balls to flow into the uplink heating pipe uniformly and smoothly, so as to realize natural circulation flow of the fluidization balls. The spiral-fluidization self-cleaning evaporation device can not only realize natural circulation, but also realize high-efficient automatic cleaning, is reliable in operation, simple in maintenance, and thus can realize both great yield increase and energy saving.

The invention discloses a central circulating tubular evaporator. The central circulating tubular evaporator comprises a barrel, an upper tube plate and a lower tube plate, wherein the upper tube plate and the lower tube plate are welded into the barrel and vertically connected with the barrel, a central circulating tube and a set of boiling tubes are arranged between the upper tube plate and the lower tube plate, the axis of the central circulating tube is coincident with the axis of the barrel, the boiling tubes surround the central circulating tube, and the outer surfaces of the boiling tubes are provided with a plurality of grooves and / or tiny concave surfaces in the circumferential direction. According to the central circulating tubular evaporator, the outer surfaces of the boiling tubes are provided with the grooves and / or the tiny concave surfaces in the circumferential direction, convex ribs in the tubes stretch into the central areas of the tubes, and heat exchange of fluid in the central areas in the tubes is enhanced; tiny spherical protrusions in the tubes periodically disturb the fluid close to the walls of the tubes, under the same flow sectional area, the heat transfer area is enlarged, the heat transfer rate is increased, and scaling does not occur easily.

The invention provides a high-capacity low-power water storage type lukewarm water drinking fountain. The high-capacity low-power water storage type lukewarm water drinking fountain comprises a waterinflow assembly, a water boiling assembly, a conduction assembly and a water storage assembly. The water inflow assembly comprises a main water inlet pipe; the conduction assembly comprises a conduction water pipe; the water boiling assembly comprises a heating container, a water boiling tube, a heating device and a first temperature sensor, wherein the heating device and the first temperature sensor are arranged on the heating container; the water storage assembly comprises a water storage tank, a second temperature sensor, a lukewarm water pipe, a water drain pipe and a drainage electromagnetic valve, wherein the second temperature sensor is arranged on the water storage tank, the lukewarm water pipe and the water drain pipe are connected with the water storage tank, and the drainage electromagnetic valve is arranged on the water drain pipe; the heating container is connected with the main water inlet pipe, and the conduction water pipe is connected with the heating container and thewater storage tank; when the water temperature of water in the water storage tank is lower than a set temperature, the drainage electromagnetic valve is opened, and the water flows out from the waterdrain pipe; and meanwhile, water of the heating container is supplemented into the water storage tank through the conduction water pipe until the water temperature of the water in the water storage tank reaches the set temperature, and the drainage electromagnetic valve is closed. Compared with related technologies, the high-capacity low-power water storage type lukewarm water drinking fountain provided by the invention has the advantage that uninterrupted lukewarm boiled water supplying can be achieved.

Provided is an steamer with all-in-one folding handles arranged inside a steamer body. The steamer comprises the steamer body with an upper opening, a steamer edge plate is arranged at the upper opening of the steamer body, and a steam boiling tube is arranged on a bottom plate of the steamer body. In this way, rice and water can be put into the portion between the steam boiling tube and the steamer body to make cooked rice; the steamer can be put in a pot for making cooked rice and arranged above the food, and at last rice water is stored in the portion between the steam boiling tube and the steamer body; one steamer has multiple purposes and is provided with the folding handles, and use is convenient.

The invention relates to a low-temperature drying process for boiling incubation type fishmeal. The process is characterized in that the water content of impurity-containing wet fishmeal is less than or equal to 45 percent; impurities are removed through sifting; the fishmeal continuously enters a boiling incubation type low-temperature drier, is dried and is discharged through a centrifugal unloader to obtain fishmeal with the water content of less than 10 percent, wherein the boiling incubation type low-temperature drier consists of vertical round tubes in thickness alternation and a heat exchanger; a thin tube of the vertical round tubes in thickness alternation is a feed lifting tube; a thick tube is a boiling tube; an initial feed lifting tube is connected with a feeding device; and a bottom feed lifting tube is connected with the centrifugal unloader. The process adopts low-temperature rapid short-time drying, can effectively protect amino acid in the fishmeal is not destroyed to ensure that the loss rate of pure protein in the fishmeal is reduced to reach or exceed the standard of coequal imported high-quality fishmeal. The system device can carry out continuous automatic production in a closed negative pressure state, has high efficiency and low energy consumption, and does not pollute environment.

The invention provides a batch transfer constant volume device of a wet digestion type digestion solution. The batch transfer constant volume device is characterized in that a water storage bucket is connected with a water separator through a silica gel tube, and a vacuum pump is arranged on the silica gel tube; the water separator is connected with two or more than second silica gel tubes, a spray cleaning head is arranged at the tube head of each second silica gel tube, the spray cleaning heads extend to boiling tubes, and two or more boiling tubes are arranged; each spray cleaning head corresponds to one digestion solution suction tube, the digestion solution suction tubes extend to the boiling tubes, and two or more digestion solution suction tubes are arranged; and the digestion solution suction tubes are connected with constant volume tubes by polytetrafluoroethylene tubes, and two or more polytetrafluoroethylene tubes are arranged. By adoption of the batch transfer constant volume device of wet digestion type digestion solution and the control module thereof, provided by the invention, batch constant volume transfer of the wet digestion type digestion solution can be realized.

The invention relates to the field of tower type solar heat power generation research, discloses a simulation device for a solar cavity type heat absorber, and is applicable to a simulation performance test of a cavity type heat absorber in the tower type solar heat power generation system. The simulation device comprises a drum and a hexagonal prism shaped heat absorbing cavity, wherein a side surface of the heat absorbing cavity is provided with a daylight opening; a dead backside wall, a left backside wall and a right backside wall of the heat absorbing cavity are arranged opposite to the daylight opening; a dead backside boiling tube, a left backside boiling tube and a right backside boiling tube are respectively arranged close to the dead backside wall, the left backside wall and theright backside wall; a superheat tube is arranged between the daylight opening and the dead backside wall; and the dead backside boiling tube, the left backside boiling tube, the right backside boiling tube and the superheat tube are respectively communicated with the drum. The simulation device is characterized in that the dead backside boiling tube, the left backside boiling tube, the right backside boiling tube and the superheat tube are made of stainless steel pipe coils which are directly heated by a power supply.

The invention discloses vertical descaling equipment for the inner wall of a boiler tube. The vertical descaling equipment comprises a base, a first support and a top plate, wherein the first supportis arranged at the top of the base; a first hydraulic cylinder is arranged at the bottom of the base; a first piston rod is inserted in the top, penetrating through the bottom of the first support, ofthe first hydraulic cylinder; the top plate is arranged at the top of the piston rod; a movable ring is arranged at the bottom of the top plate; a telescopic rod is arranged in an inner cavity of themovable ring; and a second support is arranged at the top of the first support. According to the vertical descaling equipment, the telescopic rod is driven by the first hydraulic cylinder to move upand down, and a first gear is driven by a motor to rotate at the same time, so that a fixing block connected with the telescopic rod is capable of moving up and down while rotating at the edge of theinner cavity of a boil tube to be decaled, thereby facilitating descaling of the inner cavity of the boiler tube, the descaling efficiency is improved, and the vertical descaling equipment is suitablefor being use and popularized.

The invention relates to a scale-depositing-resistant rapid heating module. The scale-depositing-resistant rapid heating module comprises a boiling tube, a heat-emitting tube and a heat preservation layer. A boiling cavity is formed in the boiling tube, and the heat-emitting tube is arranged in the boiling cavity. The boiling cavity is provided with a water inlet and a water outlet. The heat preservation layer is arranged outside the boiling tube. The inner wall of the boiling cavity is provided with a metallic titanium scale-resistant coating. The inner wall of the boiling cavity of the scale-depositing-resistant rapid heating module is provided with the metallic titanium scale-resistant coating which undermines formation of scales; the bonding effect of the metallic titanium scale-resistant coating and the boiling tube is good; and the metallic titanium scale-resistant coating cannot be peeled off easily, and thus scale depositing is prevented for a long time.

The invention provides a steam generation system and a piece of steam equipment. The steam generation system comprises a sparkling water generation device used for generating sparkling water and a heater with a flow channel; and the flow channel communicates with an outlet of the sparkling water generation device and is used for heating the sparkling water output by the sparkling water generationdevice to generate steam. According to the steam generation system and the steam equipment, by using a foreign gas introducing technology to reinforce boiling and heat transmission, the steam quantityand the steam pressure can be increased while the heating power is not increased and safety and reliability are realized; and therefore, the steam effect is enhanced so that the ironing effect of a hand-held garment steamer or a garment steamer with a one-time heated ironing head is improved. Meanwhile, the sparkling water is directly fed into the flow channel of the heater to realize pipe boiling in a tube. Compared with pool boiling, the boiling in the tube has the advantages that the dimension of the needed heater is small so that the boiling in the tube is beneficial for miniaturization and light weight of the product; and therefore, the boiling in the tube is beneficial for saving the product cost and improving the use comfort of the user.

The invention discloses a healthy water dispenser, which comprises an organic body, a cavity is opened in the upper part of the body, the cavity is separated from the groove by a third partition plate, the cavity is separated by a first partition plate and a second partition The partition is divided into mineral chamber, working chamber and water tank. There is a bagged mineral concentrate in the mineral cavity, and the bagged mineral concentrate is led out by the first diversion tube, and the lower side is provided with a support plate for supporting, and the support plate is far away from the bottom of the inlet end of the first diversion tube A compression spring is provided; a hot water conduit and a return pipe are provided on the top of the water tank, a check pump is provided at the front end of the hot water conduit, and an arch is formed on the return pipe; the hot water conduit includes a boiling water pipe, and the horizontal position of the boiling water pipe is higher than The return pipe and the boiling water pipe are provided with an air outlet. The water dispenser disclosed by the invention can ensure the smooth mixing of the mineral concentrated liquid and the drinking water, and make the heated water boiled, which is beneficial to the health of drinkers.

The invention discloses a design method of a spiral wounded heat exchanger with shell side boiling and tube side condensation. According to a bubble point and a dew point of a working medium, a shell side is divided into two parts, namely a liquid phase section and a boiling section, or the shell side is divided into three parts, namely a liquid phase section, a boiling section and a gas phase section, design calculation is respectively conducted on the corresponding sections, and the heat exchange coefficient, the heat exchange amount, the heat exchange area and the effective heat exchange length of each section are determined; if the dryness of the outlet section is smaller than 1, the shell side of the whole spiral wounded heat exchanger is divided into two parts, namely the liquid phase section and the boiling section; if the outlet dryness is equal to 1, the shell side of the whole spiral wounded heat exchanger is divided into three parts, namely the liquid phase section, the boiling section and the gas phase section; and phase change exists in the tube side condensation section, and the heat exchange coefficient is related to dryness. The design method of the spiral wounded heat exchanger has the advantages of being high in calculation precision, complete in design method, high in calculation efficiency and the like, and has high commercial value and market promotion value.

The invention relates to a solution system for automatically and circularly purifying and filtering liquid residues, which comprises an oil tray, a cold header workbench is arranged at the middle position of the oil tray, a partition plate is arranged in the oil tray and is connected with the cold header workbench, and the partition plate is connected with the cold header workbench. The partition plate is matched with a cold header workbench to divide the space in the oil pan into a dirty oil pool and a clear oil pool, a cooling liquid filtering mechanism is arranged on the oil pan, a boiling pipe is arranged in the dirty oil pool, a plurality of exhaust holes are formed in the boiling pipe, an air inlet is formed in one end of the boiling pipe, and an air outlet is formed in the other end of the boiling pipe. By means of the cooling liquid filtering and purifying device, residues precipitated in cooling liquid can be effectively separated, the cooling liquid in the oil disc is filtered and purified, the cooling liquid which is completely separated is provided for the cold header, and therefore the service life of equipment is prolonged, and the working environment of the equipment is improved.

The invention provides a high-throughput screening method of streptomyces fradiae strains capable of producing neomycin. The method includes the steps: (1) inoculating single colony spores to perforated plates of a slant culture medium and a fermentation culture medium, taking supernate by sulfuric acid acidification and centrifugation after fermentation culture, and diluting the supernate with water; (2) performing reaction on fermentation diluents and 0.25% phosphotungstic acid to generate precipitates; (3) measuring an OD (optical density) value by a microplate reader and performing secondary screening; (4) inoculating spores of the strains to be secondarily screened to a boiling tube slant or eggplant bottle slant and a shake flask for fermentation culture, and acidifying the spores bysulfuric acid; (5) filtering and diluting acidizing fluids, performing reaction on the acidizing fluids and 0.25% phosphotungstic acid in an elisa plate and measuring the OD value; (6) precisely screening selected strains after shake-flask fermentation, and measuring biological values to obtain high-producing strains. The high-throughput screening method is convenient, rapid and accurate in operation, the screening efficiency of neomycin mutation breeding is improved to a great extent, and the probability of acquiring the neomycin high-producing strains is greatly increased.

The invention discloses a device and method for homogenizing the heat flux density on the wall surface of a solar heat absorber. The interior of the heat absorber is filled with aerosol, one side of the heat absorber is provided with an aerosol inlet, and the other side is provided with an aerosol outlet, and the side wall of the heat absorber is also connected with a valve for maintaining the internal pressure balance of the heat absorber. Pressure balance unit. The invention can make the heat flux density on the wall surface of the heat absorber uniform while reducing the convective heat loss, and improve the light-to-heat conversion efficiency and operation safety of the whole solar heat absorber.

The invention discloses a ball valve, which relates to the technical field of ball valves, and comprises a valve seat, a valve ball arranged in the valve seat, a valve stem used to drive the valve ball, an intake pipe arranged on one side of the valve seat, and a valve rod arranged in the valve seat. On the other side of the air outlet pipe, the outer wall of the air intake pipe is provided with an ash discharge pipe, the pipe hole of the ash discharge pipe is embedded with a first sliding pipe, and the lower end of the ash discharge pipe is provided with an ash storage pipe, located under the ash discharge pipe A second sliding pipe is embedded in the tube hole of the ash storage pipe on the side, a first air vent is opened on the pipe wall of the ash storage pipe, a second air vent is opened on the pipe wall of the second sliding pipe, the first air vent is connected with the The position of the second air outlet corresponds to and communicates with. A release pipe is provided on the outer wall of the air outlet connecting pipe. One end of the air outlet pipe is connected and communicated with the air outlet connecting pipe, and the other end is connected and communicated with the first air outlet on the ash storage pipe through several pipe fittings. In order to solve the problem that the dust particles in the existing gas pipeline network will scratch and damage the valve ball and cause the ball valve to leak, the present invention proposes a ball valve with ash removal function.

The invention discloses a filling device for a liquid carbon dioxide fire extinguisher, which relates to the technical field of fire extinguishers; it includes a station for charging the fire extinguisher, a gas storage tank, a booster pump connected to the gas outlet of the gas storage tank, and a booster pump for connecting and the air return pipe of the air inlet of the air storage tank, and the automatic valve on the return pipe; the station includes an inflatable head for connecting the fire extinguisher and inflating, an inflatable pipe connected with the inflatable head at one end, and a gas pipe connected with the inflatable pipe at one end. Exhaust pipe, exhaust valve on the exhaust pipe, inflation valve on the inflation pipe; the section of the return pipe between the booster pump and the automatic valve is named the first section, and the inflation pipe is far away from the inflation pipe. One end of the head communicates with the first section; the charging valve is located on the side of the exhaust pipe close to the booster pump. When not inflated, the gas in the inflatable tube flows to avoid excessive pressure in the inflatable tube and the pipeline is safe.

The invention discloses an electric movable ice-making exhaust pipe recovery workbench and a construction method thereof. The recovery workbench includes a workbench frame, a speed-regulating motor component connected to the workbench frame, and a power distribution device connected to the speed-regulating motor component. The control box component, the axle assembly connected to one side of the speed regulating motor component, the ice making pipe adjustment assembly located on one side of the axle assembly, the rotating shaft support assembly connected directly below the axle assembly; the recovery wheel assembly is installed on the axle assembly. The present invention provides an installation space through the setting of the workbench frame, and is convenient for moving and fixing; through the combined setting of the speed-regulating motor component and the power distribution control box component, it is beneficial to the recovery of the ice-making exhaust pipe, and can carry out forward and reverse rotation and Recycling at different speeds; through the setting of the wheel shaft assembly, it is convenient for batch recycling, and the bayonet on the recovery wheel shaft can effectively fix the recovery wheel; through the setting of the rotating shaft support component, it is beneficial to provide vertical support to ensure the load bearing when recycling the ice making pipe.

The invention discloses an ultrasonic field and rectangular pulsed electric field parallel-coupling and extracting method and device. According to the method, parallel coupling between an ultrasonic field and a rectangular pulsed electric field is adopted for extracting effective components of natural products. The device comprises an ultrasonic extracting groove, a rectangular pulsed electric field generator, a central electrode and a constant-temperature water device. The extracting groove is a hexagonal column body groove. An ultrasonic energy converter is installed on each side face. A flat-base boiling tube is adopted as an extracting container, and extracted materials and solvent are contained in the extracting container. The central electrode is sleeved with a silica gel insulating sleeve and fixed to the center of the flat-base boiling tube through a rubber plug, and then the flat-base boiling tube is fixed to the center in the extracting groove through an iron stand table. A voltage output electrode of a rectangular pulse electric field generator is electrically connected with the central electrode. The grounding end of the rectangular pulse electric field generator is electrically connected with the side wall of the extracting groove. The constant-temperature water tank and the extracting groove are connected to form circulation. By means of the method and the device, polarity components and non-polarity components can be extracted, the extracting yield is high, the extracting time is short, and the extracting temperature is low.

The invention relates to a novel tube-type oil cooler core clean device comprising a boiling tube, a water injection valve, a steam inlet valve, a temperature meter, an overflow pipeline, oil cooler core support rings and a waste liquid collection box, wherein the water injection valve is connected with the boiling tube by a pipeline, the steam inlet valve is connected with the boiling tube by a pipeline, the temperature meter is inserted into the boiling tube, the oil cooler core support rings arranged on the inner wall of the special boiling tube, and the waste liquid collection box is connected with the boiling tube by the overflow pipeline. When the novel tube-type oil cooler core clean device is used for cleaning, an oil cooler core is placed on the oil cooler core support rings, water is injected into the boiling tube by the water injection valve till reaching the mouth of the overflow pipeline, waste liquid is discharged to the waste liquid collection box by the overflow pipeline, steam is charged into the boiling tube by the steam inlet valve, the oil cooler core is continuously boiled for 1-2 days, and at last, the oil cooler core is taken out, flushed and dried. Compared with the prior art, the novel tube-type oil cooler core clean device disclosed by the invention has the advantages of wide range of application, safety, reliability, good cleaning performance, convenience to examination and repair, and the like.

The invention discloses artificial cell membrane materials applied to photoinduction stem grafting and a synthesis method of the artificial cell membrane materials. The synthesis method of the artificial cell membrane materials comprises the following steps that 2-(dodecyl trithiocarbonate)-2- methyl propionic acid, dicyclohexyl carbodiimide, 4- dimethylamino pyridine and dichloromethane are added into a flask, all the components are stirred and dissolved under the protection of nitrogen, azide ethanol is dropwise added and stirred, washing is carried out through diluted hydrochloric acid and distilled water, solvents are removed through a reduced pressure distillation method, and a yellow oily liquid a is obtained; MPC, a midbody a, azo different nitrile and absolute ethyl alcohol are added into a boiling tube and are evenly dissolved, then after the nitrogen is removed through three times of 'vacuumizing-induction of highly pure nitorgen' operations on the boiling tube, and reaction away from light is carried out on the boiling tube in a sealed mode under the protection of highly pure nitrogen; the reaction liquid is precipitated through trichloromethane / diethyl ether mixed solvents, and solid products are collected. By means of the technical scheme, the artificial cell membrane materials have good biocompatibility, achieve the various effects of restraining of protein adsorption, anticoagulation, surface lubrication and the like, and have good medical prospects.

The invention relates to a low-temperature drying process for boiling incubation type fishmeal. The process is characterized in that the water content of impurity-containing wet fishmeal is less than or equal to 45 percent; impurities are removed through sifting; the fishmeal continuously enters a boiling incubation type low-temperature drier, is dried and is discharged through a centrifugal unloader to obtain fishmeal with the water content of less than 10 percent, wherein the boiling incubation type low-temperature drier consists of vertical round tubes in thickness alternation and a heat exchanger; a thin tube of the vertical round tubes in thickness alternation is a feed lifting tube; a thick tube is a boiling tube; an initial feed lifting tube is connected with a feeding device; and a bottom feed lifting tube is connected with the centrifugal unloader. The process adopts low-temperature rapid short-time drying, can effectively protect amino acid in the fishmeal is not destroyed to ensure that the loss rate of pure protein in the fishmeal is reduced to reach or exceed the standard of coequal imported high-quality fishmeal. The system device can carry out continuous automatic production in a closed negative pressure state, has high efficiency and low energy consumption, and does not pollute environment.