273results about How to "Avoid explosion risk" patented technology

The invention discloses a two-phase anaerobic digestion acidogenic phase reactor for municipal biomass waste. The acidogenic phase reactor is provided with an enclosed vertical kettle formed with a thin corrosion resistant stainless steel inner barrel and a common carbon steel outer barrel. The kettle is welded with a dimple jacket outside, and is fixed with a hollow guiding barrel inside, and the insides of the dimple jacket and the hollow guiding barrel both have a heating medium so as to realize heating insulation operation under the combination control of a temperature sensing probe and a temperature controller. A multi-layer push type propeller blade with less flow resistance is used to perform mechanical stirring of the biomass waste entering the reactor, and meanwhile low consumption and high efficiency mixing of material and liquid can be realized with the forced current limit of the guiding barrel. The rotating inner stirring device and the resting kettle are mechanically sealed through a movable sealing element. The acidogenic phase reactor integrates the functions of stirring, mixture, reaction, fermentation, heating and insulation has good energy-saving and environmental-protection property, which can digest the high solid municipal biomass waste into small molecule organic acids that can be used by methanogens bacteria directly.

The invention provides a power battery thermal protection system, which is used for carrying out thermal protection on a power battery pack. The power battery pack comprises an upper cover, a lower housing and a plurality of module integration modules which are located between the upper cover and the lower housing and are arranged in the first direction. The power battery thermal protection systemcomprises fireproof thermal insulation pads, which are arranged between the upper cover and the module integration modules, wherein the fireproof thermal insulation pads are in one-to-one correspondence with the module integration modules; and a battery pack explosion-proof valve, which is arranged on the inner side of at least one side edge, in the second direction, of the lower housing, whereinthe second direction is perpendicular to the first direction. The system realizes prolonging of time before the fire of a battery core breaks through a power battery housing when the battery core issubjected to thermal runaway due to heating, thereby leaving enough escape time for passengers, and guaranteeing the safety of the passengers.

The invention discloses a fire extinguishing plant of an energy storage system, comprising a sprinkler device, a smoke drying device, a water retaining device, and a water drainage device, wherein, the sprinkler device is used for spraying running water at the ablaze battery module, the smoke drying device is used for discharging smoke on the fire point and drying the battery module when water spraying stops, and the water retaining device is arranged opposite to the sprinkler device for blocking the water sprayed from the sprinkler device to prevent the water from flowing around any region outside the ablaze battery module and allowing the water to enter the water drainage device to discharge. According to the invention, water is used for fire extinguishment and simultaneously smoke discharge is carried out, thus the speed of fire extinguishment is fast, the smoke is little, inflammable gases released from the battery can be rapidly removed by timely smoke discharge in the fire extinguishing process, the danger of gas suffocation is avoided, the explosion risk caused by accumulation of inflammable gases injected by the battery in the process of using gas for fire extinguishment is avoided, and the electric shock caused by chaotic water flow is effectively avoided by the water retaining device and the water drainage device.

The invention provides a soft package power battery module and a system thereof. The module comprises a housing; a plurality of heat insulation pieces arranged in the housing at intervals, wherein thehousing is internally divided into a plurality of independent cavities by the heat insulation pieces; a soft package battery pack arranged in the housing, wherein the soft package battery pack comprises a plurality of battery core units which are electrically connected with one another, the battery core units being distributed in the different cavities; and a plurality of pressure relief parts arranged on the housing, wherein the plurality of pressure relief parts correspond to the plurality of cavities, and the pressure relief parts are used for releasing high-temperature substances in the corresponding cavities. The embodiment of the invention provides the soft package power battery module with good safety performance and the system thereof.

The invention discloses a novel crushing and cleaning device for a high-risk waste barrel. The device comprises a machine body, the machine body is composed of an upper platform, a lower platform and a connecting column connecting the upper platform and the lower platform, a waste hole is formed in the lower platform, a waste recovery bin and a barrel cover recovery groove are arranged below the waste hole of the lower platform, barrel cover cutting machines are arranged at the parts, on the two sides of the waste hole, of the lower platform respectively, a clamping mechanical arm is arranged at the part, on the rear side of the waste hole, of the connecting column, a waste barrel conveyor is arranged at the part, on the front side of the waste hole, of the lower platform, and a waste barrel cleaning device is arranged above the waste hole and installed on the lower end face of the upper platform. The device is simple, practical, compact in structure, capable of automatically completing dumping of high-risk solid-liquid waste packaged by a waste oil barrel and cleaning of the packaged oil barrel, high in automation degree, capable of conducting closed treatment to reduce the risk of waste smell leakage, capable of avoiding harm of manual treatment to workers and capable of avoiding the explosion risk caused by incineration treatment, safe and reliable.

The invention discloses a crushing-grinding-disc-type kitchen waste processor and a treatment method thereof, and belongs to the technical field of waste treatment. The crushing-grinding-disc-type kitchen waste processor comprises a feeding device, a sealing plug, an upper cover, a cylinder, a base, a bottom disc, a maintenance cover, a motor, a driving shaft, a crushing basket, four toothed crushing knives, three collision blocks, five ring cutting collision knives, an upper grinding disc, a lower grinding disc, a gear fixing disc, a slurry discharging inclined disc, a slurry discharging solenoid valve and a slurry discharging opening. The treatment method comprises a feeding layer, a crushing layer, a grinding disc layer and a waste discharging layer. According to the crushing-grinding-disc-type kitchen waste processor, collision crushing is conducted on the kitchen waste, and grinding disc grinding crushing is conducted on the kitchen waste into a slurry dilution flow to be discharged; and the crushing-grinding-disc-type kitchen waste processor has the beneficial effects that the kitchen waste develops towards the direction of reduction, recycling and harmlessness, collision crushing and grinding disc grinding crushing are conducted on the kitchen waste into a slurry dilution flow so as to be suitable for being discharged to a municipal sewage system in China for treatment.

The invention relates to the technical field of hydrogen power generation devices. The invention discloses a power generation device capable of continuously generating hydrogen. The device comprises ahydrogen generation system and a fuel cell power supply system, the hydrogen generation system comprises a plurality of mutually independent solid hydrogen storage devices, a water supply unit and agas transmission unit, the water supply unit can only inject reaction water into one solid hydrogen storage device at one time and discharge the reaction water when the volume of the reaction water inthe solid hydrogen storage device is greater than a threshold value or the temperature in the solid hydrogen storage device is greater than a threshold value; when the hydrogen flow in the solid hydrogen storage device is less than the power supply requirement of the fuel cell power supply system; and the water supply unit pumps out the reaction water in the solid hydrogen storage device, and supplies water to the next solid hydrogen storage device according to the power generation requirement of the fuel cell power supply system after the reaction of raw materials in the solid hydrogen storage device is finished, so that hydrogen can be continuously produced, and the purpose of power generation is achieved.

The invention discloses a natural gas hydrogenation device and method for a long-distance pipeline. The natural gas hydrogenation device comprises a pipeline part, a PLC and a safety protection part.The pipeline part comprises a main pipe, a first pipeline, a second pipe and a mixed total pipe. The second pipe is connected with the first pipeline. The main pipe and the first pipeline are connected with the mixed total pipe. A static mixer is installed on the mixed total pipe. The PLC is connected with the main pipe and the first pipeline correspondingly. The flow of hydrogen of the first pipeline is adjusted according to the pressure and flow information of the main pipe and the first pipeline, and the hydrogen is output via the static mixer on the mixed total pipe. The safety protectionpart includes a combustible gas alarm controller and a positive pressure explosion-proof control system and can send out sound-light alarm and protect an electrical device to operate safely under thedangerous environment of explosive gas. The natural gas hydrogenation device and method for the long-distance pipeline have the advantages of simple automatic control, large dosage, continuous operation, stable adding proportion, uniform mixing, no air discharge pollution, safety and reliability.

The invention provides a medium- and high-frequency electromagnetic heating clasping device for heating and unfreezing a pipeline, and aims at solving the problems that a wellhead is roasted and heated with open fire during replacing a packing, which is small in working efficiency and easy to cause potential risk, and the mode of coiling the pipeline with a coil to heat at the field is limited and cleaning cannot be performed. The device comprises a clasping body; the clasping body comprises two symmetric semicircular stainless steel bodies and is connected through a hinge; a heat insulating plate is arranged on the clasping body, and a high frequency coil is paved on the heat insulating plate; a temperature sensor is mounted on the clasping body; when in use, the device is clasped into an oil production packing in an oilfield or water and steam pipeline and other heated objects, then a power supply is connected, the temperature and parameters are set as requirement, and finally petroleum or ice in the heated object can be unfrozen after the set temperature is reached, and thus the purpose of normal construction can be reached; the device has the characteristics of being convenient to mount and dismount, high in working efficiency, and easy to be cleaned.

The invention relates to energy-saving microwave drying equipment capable of carrying out sufficient waste heat recovery on microwave steam. The problems that unit energy consumption is high, foreign taste is emitted and potential safety hazards are caused when some materials volatilize combustible gas in the drying process according to existing microwave drying equipment are solved through the product. The equipment is mainly composed of a preheating section and a microwave drying section and accessorily comprises a refrigeration system, a waste heat recovery system and an automatic nitrogen filling system. When the equipment carries out microwave drying on materials, an evaporator in the refrigeration system cools microwave steam into condensate water, remaining warm dry air is recycled, and gas emission is avoided; condensate water is used as an intermediate medium for recycling microwave steam heat which carries out preheating on materials together with heat produced by a condenser in the refrigeration system; and the automatic nitrogen filling system carries out rapid nitrogen filling protection when a combustible gas sensor, a controller and a release valve detect that the concentration of combustible gas in a cavity of the equipment reaches the preset value.

The invention discloses an improved roadway boring machine. The upper portion of a rack is connected with a hydraulic motor and a cantilever, the outer side of the cantilever is connected with a cutting head, a nozzle is arranged on the outside of the cutting head, and a water injection pipe is further arranged inside the cantilever; a first through hole is formed between the cantilever and the water injection pipe, the hydraulic motor is connected with a water injection ring through a support frame, and the water injection ring is connected with a water inlet pipe through a water pipe joint; and the outside of the bearings are sleeved with sealing rings, each sealing ring comprises a first rubber ring and two second rubber rings, and the two second rubber rings are respectively located on both sides of each bearing, first springs are arranged between the second rubber rings and the first rubber rings, the two sides of the second rubber rings and the first rubber rings are connected through connection rigs, annular cavities are further formed inside the first rubber rings, two second through holes are formed inside the annular cavities, and the outside of two first rubber rings are sleeved with sleeve tubes. The improved roadway boring machine can improve the deficiencies of the prior art, and a spray structure of the improved roadway boring machine has a better sealing and a cooling effect.

The invention discloses a water wall coal water slurry gasifier provided with an ignition furnace head. The water wall coal-water slurry gasifier comprises: a furnace body; a vaporizer arranged inside the furnace body, wherein the inner wall of the vaporizer is a water wall; installing ports for nozzles of coal water slurry and gasifying agent, a crude gas outlet and a slag removal opening which are arranged on the furnace body; the ignition furnace head arranged on the top side of the furnace body, wherein the inner chamber of the furnace body is communicated with the vaporizer, nozzle installing ports for a feed nozzle and an ignition nozzle are arranged on the ignition furnace head, and the inner chamber is made of firebricks. The invention also discloses gasification technologies of the water wall coal water slurry gasifier provided with ignition furnace head. According to the gasification technologies, the coal water slurry and gasifying agent are ignited in the ignition furnace head and then injected into the vaporizer for ignition of the coal water slurry and gasifying agent which are injected via the nozzles of coal water slurry and gasifying agent, so that gasification reaction is carried out. The water wall coal water slurry gasifier provided with the ignition furnace head is used to solve problems that: the ignition is difficult when an existing water wall coal water slurry gasifier is started.

The invention discloses a direct-current electric automobile power battery protection device and a work method thereof. The direct-current electric automobile power battery protection device includesfour branch circuits arranged on an electric automobile power battery main closed circuit, wherein the first branch circuit is alone composed of a power electronic switch, the second branch circuit isalone composed of a direct-current fuse protector, the third branch circuit and the fourth branch circuit are each alone composed of a direct-current mechanical switch, and the first and third branchcircuits are connected in parallel and then are in series connection with the second and fourth branch circuits which are connected in parallel; a control closed circuit of the device is provided with a current detection and control module for detecting the current state of the main closed circuit and controlling all the switches to be switched on and switched off so that different switch-on andswitch-off logic can be achieved. By adopting the device, the main closed circuit load current is on and off flows through the direct-current mechanical switches, the main closed circuit rated load current and overload current is off through when the power electronic switch, and the main closed circuit short-circuit current is off through the direct-current fuse protector; the switch-on and switch-off advantages of all the switches within different fault current ranges are fully exerted, direct-current electric automobile fault current is reliably broken, and therefore the device can replace current protection strategies.

The invention discloses a solid-liquid-gas three-state cooperative garbage pyrolysis treatment system. The system comprises a garbage treatment furnace, a draining device, an air blower, a first draught fan, a second draught fan, a gas purifying mechanism and a slag recycling mechanism. In the system, a combustion point is directly covered by garbage so that open fire can not appear in a garbage treatment furnace, and safety of garbage treatment is improved. Besides, a negative-pressure environment is maintained in the garbage treatment furnace, and explosive risks caused after flammable and combustible garbage is combusted can also be avoided. In the system, after the garbage starts to be combusted, fuel does not need to be supplemented, the garbage treatment furnace does not need to subjected to anti-explosion treatment, and cost is reduced easily.

The invention discloses an auxiliary engine tracking power source system for a power plant. The auxiliary engine tracking power source system comprises a high-voltage station transformer, station auxiliary engines and a tracking power source generator, wherein a turbine-drive tracking power source generator is adopted to supply power to the station auxiliary engines; the rotary speeds of the auxiliary engines, such as a draught fan and a water pump are adjusted to the optimal working condition according to requirements of different loads for air volume and water volume, so that energy loss caused by air door baffle cut-off can be avoided. The auxiliary engine tracking power source system adopts a novel energy-saving and consumption-reducing technology for the power plant, so that the station service power consumption rate of the power plant can be substantially lowered.

The present invention provides a reactor and a process for producing spin enriched hydrogen and/or deuterium gas.

The invention discloses a safe lithium ion battery coil core and a lithium ion battery containing the safe lithium ion battery coil core. The safe lithium ion battery coil core is formed by winding anegative plate, a positive plate and a diaphragm stacked between the negative plate and the positive plate, wherein an electrode plate on the outer side of the safe lithium ion battery coil core is the negative plate; the tail end of the negative plate on the outer side of the safe lithium ion battery coil core is a blank tail end without a negative active layer; a negative tab is electrically connected to the surface, which deviates from the inner side of the safe lithium ion battery coil core, of the blank tail end; a temperature-resistant insulating layer is bound to the surface, which faces the inner side of the safe lithium ion battery coil core, of the blank tail end; and the temperature-resistant insulating layer and the negative tab are in negative correspondence at an electric connection point on the surface of the blank tail end. The safe lithium ion battery coil core and the lithium ion battery with the same disclosed by the invention have high safety and excellent electrochemical performance.

The invention provides a preparation method and device of an indium antimonide single crystal, and relates to the field of crystal preparation. The preparation method comprises the following steps: adding indium antimonide seed crystals, indium antimonide polycrystals and diboron trioxide into a closed container; carrying out crystal growth by adopting a vertical Bridgman method (VB method); in this way, the crystals begin to grow from the bottom of the melt and are not interfered by dross, automation of crystal growth can be achieved by controlling a heating program, and compared with a Cz method, the method is low in requirement for technological experience of crystal pulling workers, high in finished product success rate, low in dislocation density and stable and controllable in quality. By arranging a heating area with independent temperature control above the closed container, the heat preservation effect can be achieved, materials can reach the set temperature more accurately, and the overall mass distribution of obtained crystals is more uniform.

System comprising an element for capturing and transforming external light into electricity based on the use of doped graphene; an electricity management control board to which are connected: a battery and a generator for supplying the current needed by a hydrolysis machine connected to the generator; a hydrogen tank connected to the hydrolysis machine; an oxygen tank connected to the hydrolysis machine, for use in space-based systems, which can be vented through an exhaust; a fuel cell or hydrogen cell connected to the hydrogen and oxygen tanks and a water deposit connected on one side to the hydrogen cell from which it receives the water generated and on the other to the hydrolysis machine to which it supplies the water. A self-sufficient or autonomous generation system is achieved.

The invention discloses a combined purification system for efficiently treating rural domestic sewage. The system comprises a water inlet device, a sewage pretreatment device, a facultative pond, a constructed wetland system and a shallow water plant pond, adopts a facultative pond, constructed wetland and shallow water plant pond combined process, and is combined with a biological membrane treatment technology, so that the removal efficiency of nitrogen and phosphorus is enhanced. A biological membrane system with a special structure can be used for microporous aeration and biological membrane formation, a carbon source is also provided for denitrification reaction, and accurate feeding and continuous release of the carbon source are realized in an ecological pond and an artificial wetland. A special annular structure is utilized, so that the occupied area of the treatment process is saved, and the effect of beautifying the country is also achieved.

Provided is a method for producing low-substituted hydroxypropylcellulose in which depolymerization capable of achieving a target viscosity in a short time is carried out safely after an etherification reaction step. More specifically, provided is a method for producing low-substituted hydroxypropylcellulose having a degree of hydroxypropoxy substitution of from 9.5 to 16.0% by weight, comprising at least a step of reacting alkali cellulose with an etherifying agent and a step of carrying out depolymerization after the reaction.