2481 results about "Gas holder" patented technology

The invention discloses a testing device and a measuring and calculating method for the gas permeability of compact rock material. Under the condition that the gas pressure at two ends of a rock sample are controlled to be the same, a gas pressure pulse is applied to the lower surface of the rock sample by a gas pressure control panel. When gas penetrates through the rock sample and enters a known pressure air storage tank under the action of the pressure of the pulse, the gas permeability of the rock sample is calculated by recording the change of the pressure of the pulse with time. The testing device and the measuring and calculating method are applicable to the measurement of permeability of mediums with low permeability, such as the storage of underground petroleum and natural gas, the storage of CO2, the disposal of nuclear waste, the storage of shale gas and the like and the measurement and calculation of the permeability of other compact rock mediums. Materials the permeability of mediums is between around 10-24m2 can all be measured and calculated by the device system.

A welding accessory system for a welder that includes a welder having a welder housing and at least one welding accessory support connected to the welder housing to support at least one welding accessory of a welder. The one or more welding accessory supports include a cable holder, an electrode holder, a cooling fluid holder, a cylinder gas holder, a cable connector box, and/or a tool holder.

The invention provides an anti-settling protection device, and relates to the technical field of automobile security devices. The anti-settling protection device comprises an air storage tank and a plurality of air bags, wherein the air bags are arranged at the chassis, top and two sides of the automobile, and all communicate with the air storage tank via air-guide tubes; an inflation control valve is arranged on each air-guide tube, and electrically connected with an automobile controller; and a water detection element is arranged on the automobile chassis, and electrically connected with the automobile controller. The invention also discloses an automobile comprising an automobile body and an anti-settling protection device installed on the automobile body. By installing the settling protection device on the automobile body, the inflation device can be started before the automobile falls into water or after the automobile falls, so that the air storage tank can inflate each air bag, the automobile can be lifted up or reduced in settling speed under the effect of buoyancy of water, and thus life security of personnel in the automobile is ensured.

The invention discloses an air compression energy storage wind power generation method and a generating set thereof for overcoming the rotation rate limitation and the problems of a rigid drive system in the prior art. The air compression energy storage wind power generation method comprises the following steps: 1, wind wheels convert the kinetic energy of wind into mechanical energy; 2, the wind wheels drive an air compressor to work so as to generate compressed air; 3, an air storage tank stores the compressed air; 4, the compressed air drives an air motor or a steam turbine; 5, the air motor or the steam turbine drives the generator to generate electricity; and 6, the surplus electric energy is stored. The invention also provides an air compression energy storage wind power generating set and a surplus electric energy storage device. The air compression energy storage wind power generating set comprises wind wheels, a speed increasing gear case, an air compressor, an air storage tank, an electric control valve, an air motor or a gas turbine and a generator. In the surplus electric energy storage device, the wind wheels and the speed increasing gear case of the air compression energy storage wind power generating set are replaced by electromotors, and other parts are the same as those of the air compression energy storage wind power generating set.

Provided by the invention is a reactor for two-phase methane fermentation of organic waste materials such as livestock excrements which can be operated for a long period with stability. The apparatus comprises an acid fermentation tank (1) connected to a feed tank, a methane fermentation tank (2) partitioned from the acid fermentation tank (1) with a partition wall (4) having a gate valve (4A) and a settling tank (3) partitioned from the methane fermentation tank (2) by a second partition wall (5) having a gate valve (5A) and the space in the upper part of the methane fermentation tank (2) serves as a gas holder (6). The methane gas generated in the methane fermentation tank (2) and collected in the gas holder (6) is taken out from a methane outlet pipeline (10) opening in the canopy of the gas holder (6).

The invention provides a brake vacuum boosting device used for an electric automobile and a control method thereof. The device comprises a vacuum booster, a vacuum pump, a gas holder, a main control ECU and a plurality of pressure sensors, wherein, the vacuum booster is used for providing assistance for brake; the vacuum pump is used for extracting and removing gases from a vacuum servo gas chamber; the pressure sensors are used for measuring gas pressure in the gas holder, wherein, a plurality of pressure sensors are respectively independently used for measuring the gas pressure in the gas holder; the main control ECU is used for receiving the gas pressure in the gas holder measured by a plurality of pressure sensors, judging whether at least one of the pressure sensors works normally and determining whether the starting of the vacuum pump is controlled according to the gas pressure in the gas holder measured by the pressure sensors and determining which pressure sensors are subject to. The device and the method of the invention can cause the brake vacuum boosting device to have relatively high reliability, thereby enhancing driving safety.

The invention particularly discloses a gas path-electric air compressor integrated control system and control method. The system comprises an electric air compressor, wherein the electric air compressor is connected with a pressure regulating valve; an outlet of the pressure regulating valve is connected with a dryer; an output end of the dryer is connected with a one-way valve; the one-way valve is connected with a four-loop protective valve; output ends of the four-loop protective valve are respectively connected with an air storage tank; two of the air storage tanks are respectively provided with an air pressure transducer which is connected with a digital instrument through an electric circuit; a pressure relief port of the dryer is connected with an electromagnetic valve; and the other end of the electromagnetic valve is communicated with atmosphere. The electromagnetic valve is added to the air outlet of the dryer to ensure that the discharge pressure of the dryer can be achieved in every air inflation, so that the dryer can discharge air and water, thereby prolonging the service life of the dryer.

The invention discloses a thermoplastic resin physical foaming material preparation device and preparation method thereof and is characterized in that the device comprises a hot pressing (1), a high pressure container (2) and a gas pressurization system (10); wherein, the high pressure container is arranged between an upper press plate and a lower press plate of the hot pressing, one end of the high pressure container is provided with a gas inlet (4) and connected with the gas pressurization system and a gas tank (11) through a gas control valve (8), the other end of the high pressure container is provided with a gas outlet (3) and connected with a depressurization control valve (9), the high pressure container is a mould which is combined by an upper mould plate and a lower plate mould and a sealing ring is arranged between the two mould plates. The preparation method comprises the following steps: placing the thermoplastic resin in a high pressure container of which the volume is 25 times or more than 25 times of the total volume of the particles, injecting 5-30MPa of gas at 110-170 DEG C, keeping the temperature and the pressure for 2-60min and then relieving the pressure in a speed of 5-20MPa/s to the normal pressure to obtain the thermoplastic resin foaming material.

The invention relates to a natural gas absorbent regeneration and energy conservation technology and a natural gas absorbent regeneration and energy conservation device. The technology and the device can overcome the defects that the energy consumption is great and the heating time is long when the absorbent is regenerated. The technical scheme is as follows: a process of two towers is adopted, one tower is used for dehydration of natural gas and the other one is used for regeneration of natural gas. The two towers are switched for dehydration and regeneration of natural gas. During dehydration of natural gas, compressed natural gas first enters into the dehydration tower A to be dehydrated and obtain dried natural gas after being separated by a front filter separator, then the natural gas enters into a gas storage tank after being separated by a back filter separator; during heating and regeneration of absorbent, after flow reduction and depressurization, the regenerated natural gas is first heated in a heat exchanger and a heater and enters into the dehydration tower B to regenerate the absorbent, then, the natural gas enters into the heat exchanger to be cooled, and finally the natural gas enters into a recovery tank after being separated by a condensation separator; and during cold blowing and regeneration of the absorbent, after flow reduction and depressurization, the regenerated natural gas enters into the dehydration tower B to cold blow and reduce the temperature of the absorbent. According to the technology, complementary utilization of energy is achieved, energy consumption in absorbent regeneration is reduced, and energy-saving operation of the device is realized.

A welding accessory system for a welder that includes a welder having a welder housing and at least one welding accessory support connected to the welder housing to support at least one welding accessory of a welder. The one or more welding accessory supports include a cable holder, an electrode holder, a cooling fluid holder, a cylinder gas holder, a cable connector box, and/or a tool holder.

The invention discloses a high-pressure gas blasting-based coal seam roof advance presplitting method, which belongs to the technical field of mine safety. The method is performed according to the following steps: (1) forming a group of drilled holes in a coal seam roof every a certain distance on a conveying roadway and a track roadway of a working face, wherein each group of drilled holes is arranged in a fan shape and faces towards a goaf; (2) placing a gas detonation gun which is connected with a high-pressure gas compression system in the drilled hole and sealing the hole by using high-strength fast setting concrete or resin; (3) starting the high-pressure gas compression system and instantaneously releasing high-pressure gas in a high-pressure gas storage tank in the drilled hole through the gas detonation gun to blast so as to communicate the crack around the drilled holes with adjacent drilled holes; and (4) repeating the steps (2) and (3) on each group of drilled holes in sequence to finish advance presplitting of the coal seam roof. According to the method, the potential spark hazard of chemical explosive blasting is eliminated; and since the pressure of the high-pressure gas is controllable and impact blasting can be repeatedly performed on the rock body, the dynamic disturbance of a coal seam is small, the roof presplitting effect is good, and the method is environment-friendly, safe and reliable.

The present invention is related to a single serve carbonation apparatus comprising a carcass that supports components including a removable pressurized gas canister, a canister receiver that regulates the flow of gas, an operative spigot to receive the bottled beverage and provide the gas inlet, a tap handle mechanism, and internal tubing to provide the channeling of gas and pressurized liquid throughout the process. With gas canister inserted and the selected beverage attached to the operative spigot, the circuit is then switched on allowing the gas into the bottle creating a pressurized flow of draught-like beverage, dispensed via the tap handle, into the glass. The present apparatus allows users to enjoy any bottled beverage at any time. The installation and removal of said canister is easy, keeping the unit small, portable and affordable. There is no need to power the unit since the bottles are already chilled.

The invention relates to a method and equipment for suppressing dust with dry mist. The method for suppressing dust with dry mist is characterized in that a plurality of atomizing nozzles are arranged in parallel on a disorderly discharged dust drift outlet of a dust generation point and are used for spraying the dry mist having the particle size of less than 10 Mum and making the sprayed dry mist form into a dry mist curtain to prevent the dust generated in the dust generation point from diffusing outwards to pollute the environment. The equipment for suppressing dust comprises a water supplying pipeline, an air supplying pipeline, an air compressor, an air storage tank and a control box. The air supplying pipeline, the water supplying pipeline and an electrical control pipeline which are led out of the control box are respectively connected with the air inlets, the water inlets and tracing band inlets of the atomizing nozzles which are arranged in parallel. The micro-size dry mist is sprayed to form a dry mist curtain to suppress dust. The micro-size dry mist spraying system equipment adopts the air compressor to supply compressed air, and the water and the air enter the atomizing nozzles in two branches. The micro-size dry mist spraying system equipment has simple structure, low running cost, wide application range and good dust suppression effect, consumes less water and works stably and reliably.

The invention discloses a gas drainage method and equipment with alternative drainage, which are applicable to increasing the drainage diameter of a gas drainage drilling hole and improving the total gas drainage amount of the drilling hole. A main drainage pipeline at the front part and the rear part of a gas pump is connected with bypass pipelines in parallel by a front three-way ball valve anda rear three-way ball valve; the main drainage pipeline at the front part of the front three-way ball valve is connected with a high-pressure gas storage tank; the rear part of the high-pressure gas storage tank is connected with a gas filling pipeline controlled by a gas filling control ball valve; the gas filling pipeline is connected onto the main drainage pipeline between the rear three-way ball valve and the gas pump; a gas drainage pipe in the gas drainage drilling hole is connected with the main drainage pipeline to carry out gas drainage; in the operation process of the gas pump, by controlling the states of the front three-way ball valve, the rear three-way ball valve, the gas filling control ball valve and an outlet control ball valve, extracted gas flow and pressed-in gas flow occur alternatively on the gas drainage drilling hole, the cracks of coal bodies around the drilling hole are enlarged continuously under the action of alternative stress and develop gradually towardsthe deep part, so that the total gas drainage amount of the drilling hole is improved. The method and the equipment are simple, the operation is convenient and the cost is low.

The invention provides a flare gas safe recovery and discharge system, which comprises a flare gas delivery flask (2), an automatic control water-sealed valve (3), a gas holder (6) and a flare tip (13) and is characterized in that the gas inlet end of the flare gas delivery flask (2) is connected with a flare gas source by a flare gas main pipe (1); one path of the output end of the flare gas delivery flask (2) is connected with a gas torch (6), and the other path thereof is connected with the flare tip (13) via the automatic control water-sealed valve (3); an automatic control valve (4) and aflare gas filtering tank (5) are mounted on the pipeline connecting the flare gas delivery flask (2) with the gas torch (6); the output end of the gas torch (6) is connected with a compressor (7); and the output end of the compressor (7) is connected with a gas appliance (8). The invention has the advantages of simple system structure, convenient manufacturing and installation and safe usage; andthe invention also has the characteristics of being favor of preventing environment, saving energy and the like.

The invention discloses a gasification treatment device for household refuse. Combustible materials in the household refuseare treated and processed into refuse derived fuel RDF, and the RDF is subjected to pyrolysis gasification of a fixed bed gasifier and purification into clean gas. The device comprises an RDF processing system, a gasification system and a gas purification system, wherein the RDF processing system comprises a discharge hopper, a plate feeder, a refuse breaker, a rotary screen, a magneticseparator, a dehydrator, a rotary dryer and a refuse press; the gasification system comprises a normal-pressure fixed bed gasifier, a feeding hole, a slag hole, a gas hole and a blower device; and the gas purification system comprises a cyclone dust collector, an electrical tar precipitator, a heat exchanger, a washer and an adsorption tower. The RDF is subjected to pyrolysis gasification of the fixed bed gasifier to form combustible gas, the combustible gas is purified by the gas purification system, and finally the gas is delivered to a gas holder through a Roots blower; the slag after the gasification is delivered to a brick making device for producing building materials; and wastewater generated by gas purification enters a wastewater tank for further treatment.

The invention discloses an optimal scheduling model of a micro-energy grid with multi-energy storage under multi-time scales, which relates to the field of energy internet optimization operation. Themicro-energy network comprises three energy forms of electricity, heat and gas, including P2G equipment, a heat and power co-generation micro-combustion engine, an electric boiler, a gas boiler, an accumulator, a heat storage tank and a gas storage tank. The multi-time scale considers two time scales, one hour before the day and 15 minutes within the day. The process of establishing the optimal scheduling model of the micro-energy grid comprises the following steps: 1, determining the component parameters and the network parameters of the micro-energy network; 2, establishing an hour-level optimized dispatch model before that day of the micro-energy grid; 3, establishing a micro-energy grid intra-day 15-minute level optimal scheduling model. The invention effectively deals with the power fluctuation of the renewable energy and the load prediction error on the premise of ensuring the daily operation energy balance of each energy storage device, and improves the absorbing capacity of themicro-energy grid to the wind power and the photovoltaic.

A liquid-droplet ejecting apparatus including a liquid ejecting head having an ejection opening from which a droplet of a liquid is ejected, a liquid supply passage through which the liquid is supplied to the liquid ejecting head, a first suction passage normally held in communication with the liquid supply passage, a sucking device sucking a gas in the liquid supply passage via the first suction passage, a gas-permeable film which is disposed at a communication portion at which the liquid supply passage and the first suction passage communicate with each other, and allows the gas to pass therethrough but not allowing the liquid to pass therethrough, a gas tank which is disposed in a portion of the first suction passage between the sucking device and the liquid supply passage, and accommodates the gas to accumulate a suction pressure to suck the gas, and a check valve which is disposed in a portion of the first suction passage between the sucking device and the gas tank, and allows the gas to flow in a first direction from the liquid supply passage to the sucking device, but does not allow the gas to flow in a second direction opposite to the first direction.

The invention discloses an old goaf coalbed methane extracting and mining system and method. The method includes the following steps that: an extracting and mining borehole is constructed in a coal pillar between adjacent old goaf cavities, and an extracting and mining pipe and a grouting pipe are arranged in the extracting and mining borehole sequentially; a valve III is opened, cement mortar is injected, so that the cement mortar and the coal pillar can form a closed space, and a valve I is opened, and N2 which is pressurized by a gas booster pump is injected into a gas injection pipe from a ground N2 storage tank, and the coal pillar is fractured; a valve II is opened, and coalbed methane is extracted and mined by a ground extracting and mining station and through an extracting and mining pipe, and initial gas flow rate is recorded as A; when coalbed methane flow rate is decreased to 30% of the initial gas flow rate A, coal-bed methane displacement with N2 is repeated until the coalbed methane flow rate is decreased to 16% of the initial gas flow rate A, and the valve II is closed, and coalbed methane extracting and mining is stopped. With the method adopted, the quantity of extracted and mined coalbed methane can be increased, and the service life of a singe surface borehole can be prolonged.

The invention relates to a method and a device for stabilizing heavy metal through pyrolysis of sludge. The method comprises the following steps: uniformly mixing dewatered sludge with moisture content of 0%-80% with hazardous waste containing heavy metal needing to be processed, wherein the dry basis heat value of the mixed material is guaranteed not less than 9000kJ/kg; drying the sludge mixed with hazardous waste containing heavy metal, then putting into a pyrolyzer for pyrolysis at 350-750 DEG C, preferably, at 450-650 DEG C; online burning the volatile components generated in pyrolysis so as to offer heat required by the pyrolyzer, wherein the formed cokes are cooled down and then sent to a sanitary landfill or are reused as catalyst. The device for stabilizing heavy metal through pyrolysis of sludge comprises a mixer for sludge and hazardous waste containing heavy metal, a dryer for drying mixture of sludge and hazardous waste containing heavy metal, the pyrolyzer, a gas storage tank and a combustion chamber for pyrolyzing volatile components, as well as a cooler for pyrolyzing carbon. The method and the device for stabilizing heavy metal through pyrolysis of sludge have the advantages that hazardous waste containing heavy metal and other contaminants can be processed while in sludge pyrolysis, and extra cost for investment and processing is not increased.