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 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 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 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.

An internal heater, comprising: a cylinder, forming a closed inner cavity together with two end faces; The large opening is aligned with the upper end surface of the barrel and there is a gap between the two; the shroud, the shroud is detachably arranged on the straight part of the shroud, the outer edge of the shroud is in contact with the side of the shroud There is a set vertical distance between the upper end surfaces, and the fluid boiled from the tubes passes through the guide tube and then sprays to the guide cover; among them, 1) The ratio of the inner diameter of the straight tube of the guide tube to the inner diameter of the cylinder is 0.375~ 0.5; 2) The height-to-diameter ratio of the inner cavity of the cylinder is 1.5-2.5; 3) The width of the gap between the guide tube and the cylinder is 10-40mm; 4) The outer edge of the guide cover and the upper surface of the guide tube The distance between the end faces is 125-600mm. The invention effectively eliminates the foam formed in the boiling process and avoids the phenomenon of overflowing the pot. During the use of the equipment, the adjustment is simple and flexible.

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 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 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.