Method for extracting and separating Huperzine from huperzine serrate

The process of extracting and separating huperzine A from huperzine serrate includes the steps of crushing huperzine serrate, reflux extracting in organic solvent, regulating acidity, filtering, chromatographic separation of the filtrate with cationic exchange resin, eluting, concentrating to obtain extractum, eluting on silica gel column with mixed eluant, collecting the eluted liquid, concentrating, letting stand to separate out huperzine A, and re-crystallizing to obtain refined huperzine A product. The present invention has high yield, low production cost and huperzine A product purity as high as 98 %.

Vehicle radiator mounting structure and mounting method thereof

The invention discloses a vehicle radiator mounting structure and a mounting method thereof; the vehicle radiator mounting structure comprises a radiator core body (1); a water chamber (2) arranged on two sides of the radiator core body (1); a fan mount fixed on the water chamber (2) and used for mounting the fan; a condenser mounting rack (4) fixed on the water chamber (2) and used for mounting a condenser; an intercooler mounting rack (5) fixed on the water chamber (2) and used for mounting the intercooler. The radiator is designed in a modularization composition, can obviously improve mounting technology and making cost, and is easy to arrange.

Engine suspension cushion assembly

The invention discloses an engine suspension cushion assembly comprising a damping device. One end of a casting support arm (1) is connected to an engine while the other end is connected with the damping device, a sleeve (3) is press-fitted outside the damping device, and an installation skeleton installed and connected to a car body is welded on the sleeve (3). The engine suspension cushion assembly is simple in structure, convenient to install and use and good in damping and vibration absorption effect.

Honeysuckle cell liquid purification equipment

The utility model provides a chinese herbal medicine cell liquid such as honeysuckle purification equipment, the wireless terminal device comprises a device body, equipment body below is equipped with the support, equipment body top is equipped with the feed inlet, its inside from top to bottom in proper order the level be equipped with first filter screen and second filter screen, the level is provided with crushing cylinder in equipment body and the first space that first filter screen encloses, the both ends of smashing the cylinder all are connected with the output of a first motor, first filter screen, the level is equipped with an agitating unit in the second space that second filter screen and equipment body enclose, agitating unit's the one side and the output fixed connection of a second motor, the water inlet has been seted up on the equipment body lateral wall, equipment body bottom is equipped with a purifier, a liquid outlet has been seted up to the bottom of equipment body ...

Engine suspension cushion assembly

The invention discloses an engine suspension cushion assembly comprising a damping device. One end of a casting support arm (1) is connected to an engine while the other end is connected with the damping device, a sleeve (3) is press-fitted outside the damping device, and an installation skeleton (9) installed and connected to a car body is welded on the sleeve (3). The engine suspension cushion assembly is simple in structure, convenient to install and use and good in damping and vibration absorption effect.

Engine suspension soft pad assembly

The invention discloses an engine suspension soft pad assembly. The engine suspension soft pad assembly comprises a mounting support seat (1) fixedly mounted on a vehicle body, wherein a ring-shaped supporting ring is arranged on the mounting support seat (1), a damping device is arranged in the supporting ring, and a base which is symmetrically and obliquely supported is arranged on both sides of the supporting ring; mounting feet (5) are arranged at both ends of the base. The engine suspension soft pad assembly provided by the invention is simple in structure, is convenient to mount and use, and has good vibration reduction and vibration absorption functions.

Construction method for extremely thick plain concrete cushion layer of ground-mounted LNG (Liquefied Natural Gas) storage tank

The invention provides a construction method for an extremely thick plain concrete cushion layer of a ground type LNG storage tank. The construction method comprises the steps that S1, pouring subareas of the plain concrete cushion layer are designed; s2, vertical column holes are formed in the outer boundary of the plain concrete cushion layer; s3, a pouring operation platform is erected; s4, vertical construction joints are formed in the boundary lines of the pouring subareas; s5, setting a cushion layer pouring elevation control line; s6, plain concrete cushion layers are poured in different areas; s7, surface treatment of the plain concrete cushion layer; s8, maintaining the plain concrete cushion layer; s9, the pouring operation platform and the working pedal are dismantled; and S10, the PVC pipe is sealed. The construction operation platform is arranged in the pouring area, so that the problem that personnel do not have construction operation conditions for pouring, vibrating, trowelling ...

Intelligent fire safety monitoring and dispatching system for smart park

The invention discloses an intelligent fire safety monitoring and dispatching system for a smart park, and relates to the technical field of park safety management. According to the invention, the manual monitoring period of the corresponding stacked dangerous objects in each preset storage area in the monitoring and dispatching system is matched with the comprehensive safety risk coefficient of each stored stacked object, so that targeted efficient inspection is carried out on the overall storage fire safety in the park, and unnecessary excessive inspection is reduced; and when a fire disaster occurs, the risk coefficient of each path in the park is analyzed through the monitoring scheduling system, the path with the highest escape safety coefficient e is analyzed, and the safe and efficient escape path is transmitted to the mobile phone APP to help personnel in the park to escape from the park quickly and safely.

Method for extracting and separating Huperzine from huperzine serrate

The process of extracting and separating huperzine A from huperzine serrate includes the steps of crushing huperzine serrate, reflux extracting in organic solvent, regulating acidity, filtering, chromatographic separation of the filtrate with cationic exchange resin, eluting, concentrating to obtain extractum, eluting on silica gel column with mixed eluant, collecting the eluted liquid, concentrating, letting stand to separate out huperzine A, and re-crystallizing to obtain refined huperzine A product. The present invention has high yield, low production cost and huperzine A product purity ashigh as 98 %.

Building temperature control method and device and storage medium

The invention provides a building temperature control method and device and a storage medium, relates to the technical field of communication, and is used for solving the problem that different temperatures cannot be adjusted for multiple regions. The method comprises the steps that a server can obtain the return air temperature of at least one building area and the number of users in each building area; and then, the server determines a first control instruction and a second control instruction according to the return air temperature, and the first control instruction is used for indicating the water valve to be adjusted to the target water valve opening degree. Then, the server sends a first control instruction to the water valve opening controller and sends a second control instruction to the air cabinet controller; and the server determines at least one target area and the target tuyere opening degree of each target area according to the number of users in the building area. And the ...

Chinese herbal medicine oral preparation processing equipments such as honeysuckle

The utility model provides a chinese herbal medicine oral preparation processing equipments such as honeysuckle, including decocte device and purifier, the purifier below is equipped with the support frame, purifier passes through the link and supports the decocte device, the decocte lid is stamped at decocte device top, the top of decocte device inside wall is equipped with a plurality of drug storage bin, all be equipped with a controlling means in a plurality of drug storage bin, the controlling means top is equipped with the timing device, the drug storage bin bottom is equipped with down the bin gate, decocte device bottom is equipped with the catheter, be equipped with the drain valve on the catheter, the free end and the purifier top of catheter are linked together, be equipped with heating device on the link, the inside level of purifier is equipped with a filter screen, the purifier bottom is equipped with the fluid -discharge tube, be equipped with the flowing back valve on the ...

Chinese herbal medicine cell liquid such as remote control's honeysuckle purification equipment

The utility model provides a chinese herbal medicine cell liquid such as remote control's honeysuckle purification equipment, including purification equipment body, its top center department is equipped with the feed inlet, purification equipment body top symmetry is equipped with two first motors, the output of two first motors all is equipped with a rotary barrel, respectively be equipped with a first control arrangement on two first motors, rotary barrel below level is equipped with a filter screen, purification equipment body inboard bottom is equipped with a purifier, the last detection device that is equipped with of purifier, purification equipment body outside bottom is equipped with 1 the 3rd controlling means, purification equipment body bottom is equipped with the support, purification equipment body bottom is equipped with a fluid -discharge tube. The utility model discloses make the user become more convenient through purification equipment to the purification work of chinese ...

Method for extracting and separating shikimic acid from star anise

Method for extracting and separating shikimic acid from star anise

The invention relates to a process for extracting and separating shikimic acid from star anise, which comprises degreasing broken star anise, thermally refluxing and extracting the degreased material for 2-3 times by using 5-6 times amount organic solvent, filtering and concentrating to obtain quintessence with specific density of 1.20-1.30, adding water at 2-5 times amount of water, and using active carbon to decolorize until the liquid is stramineus, depressurizes and concentrates at vacuum until relative density is 1.20-1.22, then centrifugaling, filtering and drying to obtain shikimic acid extractive. The invention can resolve the technical problems in background technique as high production cost and low yield, while the invention has simple production art, short period, little environment pollution, and high product purity of more than 98%, while the degreased start anise fat can be used as food additive.

Fluid sealing performance testing device for structural component of slurry machine

The invention discloses a fluid sealing performance testing device for a structural component of a slurry machine, which is applied to the technical field of slurry machine equipment and can dynamically test the sealing performance of a mechanical seal of the slurry machine in different states of positive pressure and negative pressure, and when the sealing performance of the mechanical seal is poor, the sealing performance of the mechanical seal can be tested by observing whether a testing plug moves or not. Whether leakage occurs in the test seal or not can be judged, meanwhile, a main bevel wheel, a planetary gear and an annular bevel gear are arranged in a matched mode, whether the sealing performance of the test mechanical seal is good or not can be simulated when a slurry machine operates and the interior of the mechanical seal is in a negative pressure state, and in addition, when the mechanical seal leaks and a test plug moves, the leakage of the mechanical seal can be judged by ...

But remote control fire -fighting water pipe

The utility model relates to a what but remote control fire -fighting water pipe related to is a fire control apparatus, but a remote control's fire -fighting water pipe especially. Have the water pipe body, its characterized in that: be equipped with the joint at the both ends of water pipe body, the terminal outside of tubes of water pipe body is equipped with the camera, traction wire vertically is equipped with on the pipe wall of water pipe body, head end outside of tubes at the water pipe body is equipped with micro motor, signal transceiver and power, traction wire's tail end links to each other with micro motor's output shaft, and micro motor's input links to each other with signal transceiver, in that the water pipe body is outside, the camera is outside to and the flame retardant coating has all been wrapped up to the signal transceiver outside, the water pipe still has remote terminal, adopt wireless connection between camera and the remote terminal, adopt wireless connection ...

Fire alarm monitoring method, device, equipment and storage medium

The invention provides a fire alarm monitoring method and device, equipment and a storage medium. The method comprises the following steps: in response to a received alarm signal, determining position information corresponding to the alarm signal; and based on a pre-configured building information model, obtaining monitoring data of an area to which the position information belongs, and based on the number of the alarm signals and the monitoring data, determining a processing strategy for the alarm signals. According to the invention, the problems of long processing time and insufficient safety caused by manual verification of fire alarm in the prior art are solved, rapid and correct positioning at the initial stage of a building fire is realized, the time for familiar with the building is shortened more visually, and a fire-fighting route is planned, so that the fire alarm processing efficiency is greatly improved, and the safety is improved.