18results about "Hazardous material storage" patented technology

A contained drum discharge system comprising a drum and connected with a lifting mechanism, wherein the drum includes a primary liner bag having the toxic powdery material to be disposed, contained within the secondary liner bag, and a tertiary liner bag enclosing the secondary liner bag; a transparent glove box; a hopper connected at a top of the glove box and with a vacuum transfer system of a material processing reactor; and a control unit connected with the glove box via a rotation mechanism and with the lifting mechanism of the drum. The glove box includes a plurality of glove ports connected with respective glove attachments; a plurality of thrashout ports with door; a sealing gasket to connect with the drum; a first liner port; a second liner port and a third liner port.

A safety cabinet includes an enclosure and at least one door to selectively seal the enclosure. The safety cabinet can be used to store, for example, flammable liquids, flammable waste, corrosive agents, pesticides, or combustible waste. The safety cabinet includes a heat-actuated damper including a body, a valve plate, and a pivot assembly. The valve plate is disposed within a passageway of the body such that the valve plate is movable between an open position and a closed position. The pivot assembly includes a biasing system adapted to bias the valve plate to the closed position and a fusible link interconnected between the body and the biasing system to limit movement of the valve plate from the open position to the closed position. The fusible link is configured to melt at a predetermined temperature, thereby allowing the biasing system to move the valve plate to the closed position.

The invention relates to the technical field of laboratory hazardous chemical substance storage equipment.The intelligent monitoring type gas purification type hazardous chemical substance cabinet comprises a cabinet body and cabinet doors, the front surface of the cabinet body is hinged to the two cabinet doors which are symmetrically distributed in the left-right direction, a sealing device is arranged in the cabinet body, and the sealing device comprises a double-layer sealing ring, a sliding frame and a linkage assembly; the linkage assembly comprises a first positioning rod, a first connecting rod, a second connecting rod, a third connecting rod and a second positioning rod. Through a mechanical linkage structure of the cabinet door and the sealing device, immediate synchronization of door closing action and sealing action is achieved, the effect of blocking leakage through cooperation of double sealing and oil sealing is achieved, a secondary sealing barrier is formed through oil liquid in an oil groove in the peripheral side of the sealing ring, the problems that traditional sealing stress is uneven, and a center seam leaks for sealing are thoroughly solved, and the service life of the sealing device is prolonged. Omnibearing sealing can be formed at the moment when the cabinet body is closed, the risk of dangerous chemical gas leakage is eradicated from the source, and the safety protection level in the storage process is remarkably improved.

The utility model discloses an intelligent ventilation cabinet which is used for extracting experiment waste gas generated by experiment liquid and is in signal connection with a block chain network. The intelligent ventilation cabinet comprises a ventilation cabinet body, a chip set and a detection module. The ventilation cabinet comprises an experiment groove, a movable door and an air draft pump. The experiment groove is used for containing experiment liquid. And the movable door is movably connected with the experimental tank. The air draft pump is communicated with the experiment groove and used for extracting experiment waste gas. The chipset is arranged in the ventilation cabinet, the chipset comprises a block chain information tracing piece, and the block chain information tracing piece is in signal connection with the block chain network and is used for recording the source of the experimental liquid and a circulation process of the experimental liquid in the block chain network for tracing. The detection module is arranged in the ventilation cabinet and is in signal connection with the chipset; and the detection module is used for measuring the gas property of the experimental waste gas.

The invention discloses a liquid drop generation system and device. The system comprises a liquid drop generation assembly, a negative pressure device, a temperature control device and a receiving device. One end of the droplet generation assembly is communicated with the liquid container, and the other end of the droplet generation assembly outputs a product; the temperature control device provides a first environment temperature for droplet generation; one end of the receiving device is connected with the droplet generation assembly, and the other end is connected with the negative pressure device; the negative pressure device provides a negative pressure source, the liquid drop generation assembly generates liquid drops based on the negative pressure source, and the receiving device is used for receiving generated products and / or stabilizing pressure. The environment temperature required by an experiment is provided by the temperature control device, the negative pressure device outputs pressure, and on the basis, the negative pressure device, the receiving device and the liquid drop generation assembly are respectively communicated, so that a system capable of providing refrigeration, pressure control and follow-up treatment support for the liquid drop generation process is constructed; different functional components can be arranged in the receiving device, so that the receiving device can be used as a device for transferring and collecting to carry out treatment such as pressure stabilization, incubation or refrigeration.

A method for draining oil from a pressure instrument is characterized in that a large amount of oil is often left in the instrument detached from the site, laboratory verification of the pressure instrument has extremely high cleanliness requirements, if the oil leaks, verification precision is interfered, verification equipment is damaged, and traditionally, workers mostly adopt a manual single oil draining mode or a simple support oil draining mode, so that the oil draining efficiency is greatly improved. In order to solve the problems of low efficiency, disordered oil collection, easy secondary pollution of lower-layer instruments and the like in the prior art, the oil collection device comprises at least two layers of vertical frames, a flow guide structure and an oil collection structure, the flow guide structure is fixed below a placement frame of each layer of vertical frame, and each layer of placement frame is fixedly connected through four stand columns; an oil collecting structure is arranged on the lowermost layer of the vertical frame; the flow guide structure comprises an upper structure, a lower structure is fixed to the lower end of the upper structure, and an outlet of the lower structure penetrates through the guide opening of the lower layer of the layer where the flow guide structure is located and extends to the position below the guide opening. The device is used for oil drainage of the pressure instrument.

The present application provides a kind of light experimental carrying case, including box cover openable and closable box, and box cover can be detached, the inside of the box is sequentially arranged with low temperature part, normal temperature part and garbage disposal part, and the low temperature part and normal temperature part and the normal temperature part and garbage disposal part are all provided with partition to isolate, the low temperature part is equipped with several box racks that can place reagent box, and box rack can be realized telescopic, the normal temperature part is provided with test tube area, general area and insert hanging area, and the box is also provided with small experimental equipment placement area;The carrying case is convenient to carry, the internal distribution is reasonable, all the experimental equipment required is classified clearly, and the experimental equipment in the box can also be displayed one by one, reduces the time of experimental personnel to take experimental equipment, guarantees the coherence of experiment, the garbage generated in experiment can be treated in time, avoids laboratory hygiene problem, the present application also provides a kind of operation method of light experimental carrying case.

The invention relates to the technical field of biochemical detection, in particular to a moving track control method of an automatic culture cabinet material conveying device. The moving track control method of the material conveying device comprises the following steps that after a telescopic mechanism is rotated and moved to a target storage layer of a target column storage rack, an inner ring rotating mechanism and an outer ring rotating mechanism are locked through a control module, and a telescopic rod enables an objective table to move to a first position from an initial state; and after the objective table reaches the first position, the objective table is lifted to a second position of the target storage layer through the lifting mechanism, and when the objective table carries a first material, after the vertical sensor sends a signal that the material conveying device obtains the first material, the objective table retracts to an initial state.

The safety cabinet of the present invention has an opening on the front of the working chamber and a front door, which supplies clean air to the working chamber from above. Side slits are provided on the side of the working chamber, so that the air from the side slits converges into the airflow path drawn in from the front mesh of the worktable forming the bottom surface of the working chamber, thus preventing airflow turbulence even when a device is provided in the working chamber.

The invention belongs to the technical field of laboratory equipment, and discloses a laboratory waste liquid collection system, which comprises: a waste liquid collection barrel, the waste liquid collection barrel is integrally formed by a cylindrical barrel body and an inverted trapezoidal base located at the bottom of the cylindrical barrel body, and the bottom of the inverted trapezoidal base is provided with a plurality of mounting grooves; the outer side wall of the cylindrical barrel body is provided with scale marks and a safe exhaust hole; a raised handle is arranged at the top of the outer side wall of the cylindrical barrel body; the barrel cover is installed at the top of the cylindrical barrel body, a protruding waste liquid inlet is formed in the upper portion of the barrel cover, and the waste liquid inlet is communicated with the interior of the cylindrical barrel body; the lifting handle and the waste liquid inlet are matched with the mounting groove, and a plurality of waste liquid collecting barrels can be stacked in sequence through the matching of the lifting handle, the waste liquid inlet and the mounting groove. According to the technical scheme, the device is simple in structure, safe and reliable, and the safety and convenience of laboratory waste liquid management are remarkably improved.

An automated, large-scale, energy-efficient biological material storage and retrieval system stores a large number of samples in a tray. The system includes a heat exchanger for capturing and recirculating residual energy, a movable wall, a storage compartment, a multi-tray shuttle compartment with shuttles, a plenum for maintaining the temperature of air between the compartments and along sections within the storage compartment, a mechanism for opening and closing partitions between the compartments, and a tray connector for releasing or attaching one or more trays within the compartment, the tray connector configured to minimize energy loss during operation.

An automated, large-scale, energy-efficient biological material storage and retrieval system stores large quantities of samples in trays. The system includes a heat exchanger to capture and recycle residual energy, a movable wall, a storage compartment, a multi-tray shuttle compartment with shuttle, a plenum to maintain air temperature between compartments and along the sections within the storage compartment, a mechanism to open and close dividers between compartments, and a tray connector to release or attach one or more trays within a compartment configured to minimize energy loss during operation.

The invention relates to a laboratory reagent cabinet and an intelligent reagent management method. A medicine information acquisition and verification module is in signal connection with a control terminal and is used for acquiring basic information, external dimensions and real-time weights of reagents when the reagents are put in storage and transmitting the acquired data to the control terminal; the information consistency checking module is used for checking information consistency when a reagent is taken; each storage unit is provided with an independent storage chamber, and a tray matched with reagent bottles of different specifications and a movement mechanism used for controlling the tray to drive the reagent bottles to enter and exit from the chamber are uniformly distributed in each chamber; the information identification module is used for identifying the specification of the tray in each bin and collecting the position and appearance information of the reagent bottles when the reagent bottles are put in storage, taken or returned, and the display module is used for displaying the basic information, the inventory state, the validity period information and the operation guidance of the reagents in each storage unit in real time. According to the invention, automatic, standardized and efficient management of laboratory drugs is effectively realized.

An automated liquid treatment apparatus (10) for treating a liquid (109), comprising: i. A reaction vessel arrangement (18) comprising a reaction vessel assembly (86) having a plurality of reaction vessels (88) wherein each reaction vessel (88) of the plurality of reaction vessels (88) has an output end (102) with an output opening (104); ii. A waste receiving device (46) for receiving a liquid output as treatment waste through an output opening (104) of the reaction vessel (88), the waste receiving device (46) having a waste collecting vessel (45) having a receiving volume (45a) for receiving treatment waste of a plurality of reaction vessels (88) and a waste vessel carrier (28); and iii. A pressure changing device (62b), wherein the pressure changing device (62b) is designed to change a pressure difference between an internal pressure in the at least one reaction vessel (88) of the reaction vessel arrangement (18) and an external pressure outside the at least one reaction vessel (88). The waste collection container (45) has a basin-shaped body (45c) and a container cover (45d), which is arranged on the basin-shaped body and at least largely covers a receiving volume (45a) of the waste collection container.

Automated systems and methods for the quantitative collection and extraction of a fecal sample, the system including: a primary loading module configured to receive a plurality of primary stool specimen containers, and a secondary loading module configured to receive a plurality of secondary extraction tubes, each with a collection wand; a robotic arm for loading stool on the wand and inserting the stool-loaded wand into the extraction tube; a quality control module configured to assess and confirm whether loading of the collection wand meets a preset acceptable tolerance and if so, assisting with positioning of the robotic arm for accurate insertion of the stool loaded wand into the selected extraction tube; an exhaust module; and executable software loaded into the system and in communication with a database that pairs the primary stool specimen container with a corresponding secondary extraction tube(s).

The invention discloses a laboratory sewage purification treatment device for biotechnology, and belongs to the field of sewage treatment. Comprising a filtering mechanism, and a driving mechanism is arranged on the outer side of the filtering mechanism; a purifying mechanism is arranged on the right side of the filtering mechanism; the filtering mechanism comprises a filtering box, a penetrating through groove is formed in the top of the filtering box, and a first shaft seat is fixedly connected to the position, located on the right side of the through groove, of the upper surface of the filtering box; according to the device, solid impurities and experimental residues in sewage are thoroughly intercepted through an integrated filtering mechanism, a clean and stable treatment object is provided for subsequent ozone oxidation and chemical purification, and the device is additionally provided with a purification liquid precise adding module on the basis of a traditional ozone oxidation technology; a three-stage treatment system of physical filtration, ozone oxidation and chemical purification is formed, synergistic interaction of pollutant removal is realized, and purification links can be reduced as required.

The application discloses a kind of collection devices of residual liquid sample in ultrahigh vacuum cavity, including liquid beam current trap upper end, residual liquid sample incident port, heating element, thermistor, liquid beam current trap lower end, standard vacuum flange, gate valve, vertical degree of freedom adjusting device, liquid sample cooling tank, liquid nitrogen input port, nitrogen output port, stainless steel tube, dewar flask.The device is condensed to liquid sample cooling tank by residual liquid sample using liquid nitrogen cooling collection device through liquid beam current trap upper end face incident port, realizes the recovery of residual liquid sample in ultrahigh vacuum cavity.The application is scientific and simple in design, easy to operate, and efficient in recovery, can quickly and quickly clean up the excess liquid sample in the cavity during the experiment, minimize the influence of excess liquid sample on the vacuum degree of vacuum cavity, and can be suitable for the research of different residual liquid sample experiments in ultrahigh vacuum cavity.

The application discloses a radioactive source term heat and mass transfer visualization experiment device, one end of an experiment main body system is divided into three paths, one path is connected with a gaseous iodine sampling and measuring system, a second path is connected with an aerosol sampling and measuring system, and a third path is connected with a gaseous iodine generation and distribution system, an aerosol generation and distribution system, a steam distribution system and an air distribution system through a gas mixing system; the other end of the experiment main body system is provided with a high-speed photography system and is connected with a water replenishing system, a liquid phase sampling system and a spray droplet system. The device can simulate the aerosol, gaseous iodine and methyl iodine environment under different steam proportions, temperatures and pressures, and further realize the research on the removal and retention characteristics of the source term under different flow rates and different heat and mass transfer forms, thereby providing data support for the dose evaluation of the radioactive source term after an accident and the modification of a source term prediction model.