90 results about "Excessive gas" patented technology

A cell assembly (20) is formed by arranging an electrode body and electrolyte in an external case (12) having a through hole (41). A laser is applied to an annular portion (formed by Al or Al-based alloy) surrounding an opening end (41A) of the through hole (41) toward outside the case so as to form a welded base (45). A sealing film (54) is welded to the surface of the welded base directly or via a base film (52) welded in advance, so as to temporarily seal the through hole (41). The cell assembly (20) in the temporarily sealed state is subjected to initial charge and then a hole is opened through the film (54) so as to form a gas discharge passage for communication between inside and outside of the case (12), thereby discharging an excessive gas from the case (12) outside.

The invention discloses a comprehensive and integrative gas drainage method which can be used for solving the problems that gas drainage is difficult to realize due to soft coal beds and low air permeability of the existing mines and the drainage effect of the current single gas drainage technology is unsatisfied. The method disclosed by the invention comprises the following steps: (1) high-position fracture borehole drainage of the top plate of a coal bed; (2) heterotropic high-position borehole drainage of a return airway; and (3) upper corner pipe-laying drainage of a gob. According to the invention, the stress field and fracture field caused by mining and a gas migration rule are fully utilized, so that drilled holes are high in drainage efficiency and flexible in arrangement, a drainage system is simple, the gas concentration at a drainage outlet can be up to 15-24%, and the gas drainage efficiency can reach 55-67.3%. The method disclosed by the invention is a new technology and method in fully mechanized caving face gas control methods, can be used for reducing the occurrence of excessive gas accidents and reducing the losses of life and property, has very important and far-reaching significance and is strongly worthy to be popularized and applied.

In order to provide a gas generation apparatus such as a hydrogen gas generation apparatus for a fuel cell or an oxygen gas generation apparatus used in medical sites and at the time of disasters in which a solid gas generating agent such as metal is brought into contact with a reaction liquid to generate hydrogen gas or oxygen gas, a gas generation apparatus A having a solid gas generating agent and a reaction liquid in which the solid gas generating agent and the reaction liquid are stored respectively in separate storing vessels 21, 31 and in which the reaction liquid is supplied into the gas generating agent-storing vessel to generate gas by capillary-active connection of the respective storing vessels assumes a constitution in which capillary-active connection is shut off when a pressure of the gas is raised. In the above gas generation apparatus, generation of the gas can automatically be controlled by a simple mechanism when the gas is not consumed, and therefore generation of excessive gas can be controlled.

The present invention is a system for providing automobile dealerships and fleet businesses with comprehensive gas book management capabilities, inclusive of a process for authorizing and tracking gas book expenditures, as well as software for accounting, reconciling and reporting on them. An overseer (clerical staff) runs the present software and enters data into a database via an electronic gas Purchase Order form whenever a request for gas is made, the data including Date, Time, Requestor and other information pertinent to the Request. The software auto-generates a unique Purchase Order number for each Purchase Order, and prints two hard copies of the gas Purchase Order each bearing the unique number. One of the Purchase Orders is given to the requestor, and one is filed. The Requestor takes their Purchase Order, gets the gas, and exchanges their Purchase Order with a receipt for gas purchased therewith. The requestor returns this receipt to the overseer. The overseer enters pertinent Receipt data into the database, and this allows the dealership to periodically reconcile the database against charge statements received from credit card issuers or gas stations, better manage the usage of gas, as well as to spot fraud, excessive gas spending, and charge mistakes.

The invention discloses a production system of suspended-state calcined coal gangues. The production system comprises a material preparing and feeding sub system, a preheating and decomposition furnace-calcining sub system, a product cooling and heat-recycling sub system, a hot air preparing and supplying sub system and a system power and waste gas-purifying sub system, wherein the material preparing and feeding sub system is used for quantitatively and stably supplying coal gangue powder to a pre-heater; the preheating and decomposition furnace-calcining sub system is used for preheating materials to a set temperature under a suspended state, and decomposing and sintering the materials in a decomposition furnace; the product cooling and heat recycling sub system is used for sucking in cold air to cool the sintered materials under the suspended state to obtain low-temperature activated coal gangues; the hot air preparing and supplying sub system is used for ventilating hot air to the hot air furnace for burning pulverized coal or fluidized block coal, and providing hot air to the decomposition furnace of the preheating and decomposition furnace-calcining sub system, wherein the hot air is from the product cooling and heat-recycling sub system; and the system power and waste gas purifying sub system is used for providing gas flow power to the preheating and decomposition furnace-calcining sub system, purifying all waste gas of the preheating and decomposition furnace-calcining sub system and excessive gas emitted by the hot air preparing and supplying sub system. The production system disclosed by the invention can massively, efficiently, continuously and stably produce and process high-activity cinerite coal gangues.

The invention relates to a gas pipeline detection system which comprises a control terminal, a gas concentration detection device, a reference module, a wireless transmission module and an alarm module, wherein the control terminal is used for processing data; the gas concentration detection device is used for detecting the indoor gas concentration and outputting gas concentration data; the reference module is coupled to the control terminal and used for providing a fuel gas concentration threshold value; the wireless transmission module is coupled with the control terminal and used for inputting the gas concentration data into the control terminal, comparing the gas concentration data with the gas concentration threshold and outputting the gas concentration data; the alarm module is coupled with the wireless transmission module to receive dangerous gas concentration data and give an alarm. According to the invention, the indoor gas concentration is detected in real time, so that people can be reminded to close a gas valve to stop gas delivery when the gas concentration exceeds a certain threshold value, the situation that people are poisoned by inhalation due to excessive gas leakage can be reduced, and the safety of the gas in the using process can be improved.

The invention discloses a preparation method for optimizing a copper-chromium contact by adding an ultrafine grain chromium phase, and belongs to the technical field of medium-pressure vacuum switches. The preparation method mainly comprises the following steps of (1) preparing materials; (2) carrying out vacuum induction smelting; (3) carrying out atomizing to prepare powder; (4) mixing the powder; (5) pressing and sintering; and (6) machining. According to the preparation method, the copper-chromium alloy contact is prepared by adopting a mixed powder sintering process on the basis of vacuuminduction gas atomization, and the copper-chromium alloy powder is prepared by adopting the vacuum induction gas atomization, so that a very fine chromium phase is provided for the contact, and thenconventional chromium powder is added, a copper-chromium contact meeting the requirements of chromium content is prepared by adopting a solid-phase sintering process, the contact not only avoids the excessive gas content due to the fact that chromium particles is required to be fine in a conventional production mode, the size of the chromium phase is far smaller than the size of the conventional chromium powder, and the performance of the contact is greatly optimized; and the copper-chromium contact prepared by the method is low in cost and excellent in performance, and is suitable for industrial batch production.

The invention discloses a mixing and shaking-up device for chemical reagents. The device comprises a base, a main support, an auxiliary support, a driving motor, a wheel, a translation plate, a reagent bottle, a stirring bar, a magnetic stirrer and a gas filter, wherein the wheel is fixedly mounted on an output shaft of the driving motor, the translation plate is arranged in front of the wheel, the stirring bar is arranged in the reagent bottle, and the magnetic stirrer is fixedly mounted on the upper surface of the base; the gas filter is fixedly mounted on a support plate. The magnetic field is produced in the magnetic stirrer according to the principles that like charges repel but opposite charges attract in the magnetic field, the magnetic stirring bar in the reagent bottle rotates circumferentially to play a stirring role, and the reagents are mixed more uniformly and quickly; the gas filter sucks away poisonous gas in gas, an operator is prevented from being poisoned, meanwhile, explosion due to excessive gas in the reagent bottle can be effectively prevented, and the experiment safety is improved.

The invention provides a pneumatic launching system for a vehicle-mounted loitering unit, and belongs to the technical field of vehicle-mounted weapon launching. The pneumatic launching system comprises a vehicle-mounted air source device, a pressurization unit, a high-pressure air distribution unit and a launching unit which communicate with each other in sequence through air flues. The launchingunit is provided with a launching tube, the launching tube is internally provided with a piston, the periphery of the piston is in contact with the inner wall of the launching tube and can slide along the inner wall of the launching tube, and the piston and the bottom of the launching tube form a sealing cavity. A launching cover is arranged at an outlet of the launching tube, and the loitering unit is located between the piston and the launching cover. According to the pneumatic launching system for the vehicle-mounted loitering unit, an own vehicle-mounted air source device of a vehicle isused, air is used as the raw material to realize continuous air supply to overcome the defect that air supply by an external air tank mode is prone to being interrupted, the cost is saved, and the working efficiency is high; a safety valve and a pressure gauge are arranged additionally to prevent excessive gas pressure during the working process, and the safety and working reliability of gas compression are enhanced; and by arranging buffer mechanisms such as a buffer tank, the work stability and security are guaranteed.

The invention belongs to the technical field of pressure vessels, and particularly relates to a nitrogen-filled type pressure vessel for sealed glass lining equipment to solve the problem that the physical design is simple, the function is single, excessive gas in a vessel can not be exhausted, and sealing setting is without rear gas filling. The nitrogen-filled type pressure vessel comprises an upper cover, a vessel cylinder body and a damping base. The upper cover is a semi-circle cover body. A threaded hole is formed in the top of the upper cover. A threaded connecting rod with matched specification is connected into the threaded hole in a threaded mode. A rotating disc is welded to the outer wall of the top of the threaded connecting rod. An annular suction cup with matched specification is fixed to the end, located in the upper cover, of the threaded connecting rod by bolts. Slow flow is conducted to stored objects in the vessel, and shaking amplitude of the objects is reduced. The device is rich is structure and has various functions. Function Diversity of the device is improved, excessive gas in the vessel can be removed, and the exhausting function of the device is improved.

The invention relates to a method for realizing low nitrogen combustion in a vertical flue of a coke oven combustion chamber. Preheated combustion supporting air enters the vertical flue from an combustion supporting air bottom outlet, then is mixed with exhaust gas, and then jets upward to be in contact combustion with lean gas/mixed gas erupted from a rich gas outlet or lean gas bottom outlet to form mild and deep hypoxic dilution combustion; along the height direction of the vertical flue, each section of combustion supporting air outlets and gas outlets are arranged in a staggered mode, so that there is always excessive combustion supporting air to react with low-concentration gas or excessive gas to react with oxygen-lean combustion supporting air in the combustion process to form a concentration deviation combustion process; the gas flow of each outlet is controlled by a flow adjusting device, and the last section of the combustion supporting air outlets is arranged higher than the last section of the gas outlets, so that there is a high temperature reduction area in the vertical flue, and in the high temperature reduction area, there is residual reduction gas capable of reducing generated NOx in high temperature exhaust gas. The method can effectively reduce the NOx concentration in the exhaust gas.

The invention discloses a gas-type road limit device. The gas-type road limit device comprises a main hollow rectangular shell, wherein a main air storage space is arranged in the center of the main hollow rectangular shell. A plurality of equidistant cylindrical hollow shells are arranged on the upper surface of the main hollow rectangular shell. The center of each cylindrical hollow shell is provided with a secondary air storage space. The gas-type road limit device uses air as a medium to provide a retractable limiting function, and has the characteristics of low cost in use and easy accessto raw materials. In addition, the gas-type road limit device has an air pressure control mechanism and can effectively control the maximum value of the internal air pressure, so as to effectively prevent a motor from burning out in the drive device which is used to provide air due to excessive gas pressure. In addition, the air pressure control mechanism can play a pre-warning role. When the internal air reaches a maximum value, the air pressure control mechanism can send a clear warning effect, thereby reducing the occurrence of power waste, and has high practicality.

The invention discloses an MEMS wafer-level vacuum packaging method, which comprises the following steps: S1, manufacturing a substrate layer: manufacturing an annular groove filled with an insulatingmedium on a double-polished silicon wafer to form a silicon vertical lead, and etching a deep cavity to serve as an activity space of an MEMS movable structure; S2, manufacturing a structural layer;S3, manufacturing a cap layer: manufacturing a vacuum chamber and a vacuum buffer chamber on the front surface of the double-polished silicon wafer, then manufacturing a Ti/Au gold-silicon bonding ring, and finally preparing a getter layer in the vacuum chamber and the vacuum buffer chamber; and S4, vacuum packaging: performing a gold-silicon bonding process on the prepared cap and the structure layer to complete MEMS wafer-level vacuum packaging, and finally preparing gold welding spots for lead bonding; the vacuum degree of the MEMS device is improved through the vacuum chamber and the vacuum buffer chamber, and excessive gas is absorbed by the getter, so that the vacuum degree can be kept for a long time.

The invention discloses an automatic control method of a hot wire CVD nano diamond coating. A diamond coating device firstly detects whether a hot wire temperature T1 is larger than a temperature control point T2 or not in real time, when the hot wire temperature T1 is larger than the temperature control point T2, the flow G1 of the reaction gas is determined according to the hot wire temperatureT1 at the moment, meanwhile, the gas flow of an output opening of a gas conveying assembly is set according to the gas flow G1, and the heating time M1 of the nucleation stage of a die inner hole andthe heating time M2 of the growth stage are determined according to the current hot wire temperature T1 and the gas flow G1. By means of the automatic control method, the gas flow of the reaction gas,the heating time of the nucleation stage of the nano diamond coating and the heating time of the growth stage can be automatically adjusted according to the hot wire temperature, the growth efficiency of the nano diamond coating of the die inner hole can be effectively improved, meanwhile, the nano diamond coating of the die inner hole can be more uniform, and the phenomenon that due to the excessive gas, waste is caused or due to the too little gas, the effect of the nano diamond coating is affected can be avoided.

The invention relates to an automatic excessive gas diffusing system and belongs to the field of gas distribution and storage projects. The automatic excessive gas diffusing system comprises a vertical burning and diffusing pipe, a diffusing system main gas pipe, a gas regulating valve, a pressure detecting device, a flowmeter, a steam pipeline, a magnetic steam valve, coke oven gas pipeline usedduring burning, a magnetic coke oven gas valve used during burning, a magnetic coke oven gas valve for ignition, a coke oven gas pipeline for ignition, a gasometer system and a diffusing ignition control module. A gasometer capacity signal of a gasometer is introduced into the automatic excessive gas diffusing system. The signal is sent when a gasometer piston rises to a certain height, the automatic excessive gas diffusing system is opened for gas diffusion and burning. The signal is sent after the piston descends to a certain height, the automatic excessive gas diffusing system is closed, excessive gas in a pipe network system and a gasometer in a whole plant is burned and diffused through the automatic excessive gas diffusing system so as to protect the environment and safety of personsnearby the gasometer to the most degree.

The invention discloses a plant protection unmanned aerial vehicle capable of quantitatively spraying. The plant protection unmanned aerial vehicle capable of quantitatively spraying comprises a frameand a power frame fixed above the frame; a pesticide box is arranged between the frame and the power frame; a spraying pipe is arranged under the frame; multiple spraying heads are arranged at the bottom of the spraying pipe; the spraying pipe communicates with the pesticide box; a storage cavity, a transferring pipe cavity and a quantifying cavity are formed in the pesticide box in sequence; a pesticide supplementing port and a first pressure stabilizing port are formed in the top of the storage cavity; a transferring pipe for connecting the storage cavity with the quantifying cavity is arranged in the transferring pipe cavity; and the connecting part of the transferring pipe and the storage cavity is positioned at the bottom of the storage cavity. According to the plant protection unmanned aerial vehicle capable of quantitatively spraying, the internal structure of the pesticide box is skillful; by using a mechanical structure in the quantifying cavity, a pesticide liquid is quantitatively transferred; and by using a pressure sensing structure, the quantity of the transferred pesticide liquid is determined; as the quantitative transferring mode is different from a traditional pumping timing mode, a situation that the quantifying of the whole device is not accurate due to timed pumping after vibrating and mixing excessive gas in the pesticide liquid can be avoided, and therefore, accurate quantification value is guaranteed.