43 results about "Methane pressure" patented technology

The invention relates to a normal temperature methane high-efficiency adsorption material and a preparation method thereof. The material is characterized in that a metal organic skeleton composite material containing transition metals Fe III, Zn II, Cu II, Ni II and Co III grows on an active carbon ceramic mainly prepared from active carbon and molecular sieve in an in situ manner. The preparation method of the normal temperature methane high-efficiency adsorption material comprises the following steps: carrying out dry mixing and ball milling on one or more of chlorides and sulfates of Fe<3+>, Zn<2+>, Cu<2+>, Ni<2+> and Co<3+>, high-specific surface area coconut shell active carbon, Y molecular sieve, attapulgite, kaolin and methyl cellulose in proportion, adding a certain amount of water, carrying out wet mixing, kneading, carrying out vacuum pugging, ageing, carrying out extrusion molding, drying in the shade, carrying out microwave irradiation sizing to obtain an active carbon ceramic molding material containing transition metals, immersing the molding material in a mixed solution containing an organic solvent, an deprotonated alkali and an organic carboxylic acid ligand according to a certain ratio, reacting at 120-180DEG C for 6-24h, carrying out solid-liquid separation, washing, and carrying out microwave vacuum drying to obtain a metal organic skeleton-active carbon ceramic composite material. The material has the characteristics of large specific surface area, developed aperture, high compressive strength, large methane adsorption capacity and high CH4/N2 and CH4/CO2 separation coefficients, and can be widely used in the fields of methane pressure swing adsorption separation and low-concentration methane recovery.

The invention discloses a methane desulfurization and purification method and a methane desulfurization and purification device. The invention comprises that: wastewater or treated effluent containing oxides such as NO3-, NO2-, Fe3+ and the like is introduced into a desulfurizing tower from a spraying liquid inlet (3) and is uniformly sprayed on an elastic filler (7) through a spray nozzle; methane enters the desulfurizing tower through a methane inlet (1) at the bottom of the desulfurizing tower, is uniformly distributed through a porous gas distribution plate (5) and alternately passes through a microbe-attached plastic air balloon (6) and the elastic filler (7); the plastic air balloon (6) and the elastic filler (7) are alternately arranged; the desulfurization microbes are attached to the plastic air balloon (6) and the elastic filler (7) or blocked in reaction solution by the filler; and hydrogen sulfide is converted into sulfur or sulfate by taking NO3-, NO2- and Fe3+ as electron acceptors so as to fulfill the aim of methane desulfurization. The desulfurized methane is exhausted from a methane outlet (2) on the top of the tower; the desulfurized spraying liquid enters the bottom of the desulfurizing tower and is discharged through a spraying liquid outlet (4); and the height of a vertical pipe connecting the spraying liquid outlet (4) and the bottom of the tower is about 2 times that of methane pressure (a water column).

The invention discloses a hydraulic pressure floating hood type methane tank. A hood body comprises a hood cover, a hood wall and an air tube and is coated on the inner bottom of a container; a distance interlayer is arranged between the hood wall and the wall of the container, the hood body is provided with a device for leading a material liquid into the hood, a device for controlling the height of a plane in hood covers of air storage chambers and a liquid level to be larger than zero, a positioning device for enabling the hood cover to freely float up and down and a device for discharging residue; the height of a feeding port is higher than a zero-pressure liquid surface, and the height of the wall of the hood is at least equal to a value which is obtained via algorithm as follows: a vertical upward cross stress area impulses the maximum output methane pressure in the gas storage chambers and divides the product of an average area of liquid surface cross hood wall and liquid density. According to a buoyancy principle and a simple structure, technical problems including high manufacturing cost of methane tanks, troubles of automatic residue discharging and automatic pressure stabilizing, less gas storage capacity and the like in the prior art are solved. Therefore, people can process a large amount of straw, household garbage and waste with low cost, and meanwhile, reproducible energy firedamp can be obtained.

The invention discloses a spliced thermal insulation methane tank which is a spherical or cylindrical tank. The tank is formed by splicing an upper tank (2) and a lower tank (3), wherein the upper tank and the lower tank are connected by using a prearranged flange and are adhered; the upper tank is provided with a feed and discharge port, so that feed and discharge are facilitated; the feed and discharge port is firmly connected with a sealing cover by using bolts, so that air-tightness of the tank is guaranteed; the sealing cover is provided with an air nozzle and a pressure relief module (1), so that external gas supply and methane pressure in the tank do not exceed a safety range; and the tank is divided into an inner layer (5), a thermal insulation layer (6) and an outer layer (7). The spliced thermal insulation methane tank has the advantages of simple structure, high thermal insulation performance, high strength, practicability, easiness for disassembly and assembly, science and preciseness, convenience for industrial production, installation and transportation and simplicity in operation and maintenance.

The invention discloses a methane storage cabinet and a methane tank containing the methane storage cabinet. The methane storage cabinet comprises a sludge tank and a gas storage cabinet communicated with the sludge tank, wherein the bottom of the gas storage cabinet inclines down to the place where the sludge tank is communicated with the gas storage cabinet and the bottom of the gas storage cabinet extends to a side wall where a water outlet hole of the sludge tank is located, the cross section of the bottom of the gas storage cabinet is an indent hemisphere. The methane tank containing the methane storage cabinet comprises a main tank and a hydraulic pressure room, wherein a dung inlet is formed in one side of the main tank, a dung outlet is formed between a fermentation tank and the hydraulic pressure room, and the dung outlet is formed in the other side wall of the fermentation tank; the upper edge of the dung inlet and the top of the dung outlet are arranged on the same horizontal line; the bottom of the fermentation tank inclines downwards from the side wall where the dung inlet is located to the hydraulic pressure room and extends to the side wall where an overflow hole of the hydraulic pressure room is located; and a dung drainage channel with the cross section in an indent hemisphere shape is formed in the bottom of the fermentation tank. The invention aims to provide a methane storage cabinet with a simple structure, low cost and long service life and a methane tank which is constant in methane pressure, convenient for deslagging and high in methane yield and hardly causes crusting.

The invention discloses a methane tank with a stirring function. The methane tank with the stirring function comprises a first methane tank, a second methane tank, a pressure release valve, stirring motors, a gas outlet and a residue discharge pipeline; a feeding port is formed in one upper side of the first methane tank; the second methane tank is arranged on one side of the first methane tank; viewing windows are arranged on the side walls of the first methane tank and the second methane tank; the stirring motors are arranged on the upper sides of the first methane tank and the second methane tank; stirring rods are arranged on the lower sides of the stirring motors; the stirring rods extend to the bottoms of the first methane tank and the second methane tank; rotary seats are arranged on the lower sides of the stirring rods; the rotary seats are fixedly arranged at the bottoms of the first methane tank and the second methane tank. According to the methane tank with the stirring function, the stirring motors are arranged on the first methane tank and the second methane tank, so that methane reaction is conducted more completely; furthermore, redundant pressure is released by the pressure release valve, so that breakage of the methane tank caused by excessive methane pressure is avoided.

The present invention discloses a meal waste fermentation warm supply device based on waste classification. The meal waste fermentation warm supply device based on the waste classification comprises adevice main body, a fermentation cavity for fermentation is arranged in the device main body, users can throw meal waste into the fermentation cavity, so that the meal waste is fermented in the fermentation cavity to generate methane, an isolation fixed block is fixedly arranged in an inner wall of a left side of the fermentation cavity, a partition device is arranged in the isolation fixed block, the partition device can separate the fermentation cavity from outside when the users throw the waste, a heating device is arranged in an inner wall of a right side of the fermentation cavity, a ventilation device is arranged between the heating device and the fermentation cavity, and the ventilation device can introduce the methane into the heating device when methane pressure intensity in thefermentation cavity reaches a preset value. The present invention aims to design the waste treatment device capable of fermenting the meal waste and using the methane generated by the fermentation forwarm supply.

The present invention discloses a methane pressurizing generator, which has the purpose of providing one kind of the pressurizing generator. Including the generating cavity and the independence pressurizing cavity, two cavities are connected by air pipe, the pressurizing cavity has the water inlet pipe or/and the air inlet pipe, above two cavities with gas outlet pipe connected with the methane apparatus, the generating cavity has charging port and mixer. When the barometric pressure in the pressurizing cavity is excessively low, then pours water or air to the pressurizing cavity, which causes the space of the pressurizing cavity change small, then the methane pressure raises.

The invention belongs to the technical field of renewable energy sources, and in particular relates to a methane pressure stabilizing device and a manufacturing process thereof. The methane pressure stabilizing device is characterized by utilizing a principle of separate storage in two pools, i.e. one material fermentation device and a methane storage and pressure stabilizing device are constructed; when methane in the pools is generated continuously and the pressure of the pool bodies is increased, the methane continuously flows to a methane storage tank (2) through a methane guide pipe (8); the more the methane is generated, the higher the pressure of the methane storage tank (2) becomes; when the methane stored in the methane storage tank (2) is too much or the amount of the methane used by farmers is too small, excessive methane is drained through a pressure relief valve (3), and the pressure of the methane supplied to the farmers is unchanged; and a one-way valve (6) is installed on the methane guide pipe (8), when the methane generation amount of a fermentation pool (7) is less, the one-way valve (6) can ensure the pressure in the methane storage tank (2) and prevent methane in the methane storage tank (2) from flowing back to the fermentation pool (7), and the pressure of the methane supplied to the farmers is unchanged.

The invention discloses a constant-pressure methane storage tank comprising a support, a tank body and a reservoir. A certain amount of water is contained in the reservoir, two observation holes are formed in the bottom of the reservoir, a gas inlet pipe and a gas outlet pipe penetrate out respectively via the observation holes after passing through water, the support is fixed over the reservoir, the tank body is arranged in the reservoir in an upside down manner, an enclosed space formed between the tank body and the water surface is a gas storage chamber, the bottom surface of the tank body is provided with a plurality of counterweights, and an overflow gas pipe penetrates the bottom surface of the tank body and communicated with the outside through the overflow gas pipe. The buoyancy principle is utilized, the counterweights are increased and decreased according to a set pressure value, gravity of the counterweights is kept equal to methane pressure in the gas storage chamber, pressure of the methane is regulated automatically and quite accurately, the problem of storage of the methane generated by the methane tank is solved, and the problem about pressure stabilization required by methane appliances such as methane cookers is solved. One-time investment is adopted, no follow-up maintenance is required basically, the requirement of accurately using the methane can be met easily, and production and living needs can be satisfied better.

The present invention discloses a methane generator with high speed and the pressurizing characters. Including the methane occur cavity, air storing cavity, the pressurizing cavity, the upper of the cavity and air storing cavity with the airway connected; the lower of the air store cavity and downspout with the pressurizing cavity connected; outside meeting in the pressurizing cavity has induction pipe or / and the air feeder, above termination of stores air feeder has the trachea with the methane apparatus connected, which has the cavity in upper extreme system which has aperture. Moreover, the entire methane with high speed and pressurizing generator and the base armbrace is transportable. When the inside barometric pressure of stores air cavity is excessively low, by inductionpipe either / and air feeder with turbo-charged cavity pouring water or / air, water in the pressurizing cavity passes through aqueduct again and enters stores air cavity when the space store air cavity changes small, then the methane pressure rise.

The invention belongs to a component structure of a methane fan heater, and in particular relates to a methane nozzle device structure of a methane fan heater combustor. The methane nozzle device structure is characterized in that a methane nozzle device (2), a venturi (3), a premixer (4) and a methane burner nozzle (5) at the top which are arranged in sequence from top to bottom are arranged on a base (1); a methane inlet pipe (24) of the methane nozzle device (2) is horizontally and transversely connected to a nozzle seat body (25); a damper regulator (22) is arranged between a methane outlet on the nozzle seat body (25) and an inlet of the venturi (3), consists of a plurality of fan-shaped pieces the weights of which are mutually staggered, and is pressed under the elastic force of a spring arranged under the damper regulator (22); the methane pressure regulating assembly (23) is arranged in a tube hole and takes the shape of a cylinder and is provided with parts, such as a throttling regulator (234), a sealing gasket (231), a sealing elastic film (232), a bolt (235), a nut (236), a regulating spring cover (238), a regulating spring (237) and a regulating spring thread sleeve (239) which are sequentially arranged in the axial direction from inside to outside; and the throttling regulator (234) takes the shape of a rectangular frame. By utilizing the methane nozzle device structure, the purposes of complete combustion, stable combustion and high combustion value can be still achieved even if a methane source is not stable and the pressure and flow fluctuate.

The invention discloses a low-concentration coal-bed methane engine anti-explosion gas supply system and an operation method. The low-concentration coal-bed methane engine anti-explosion gas supply system comprises a gas conveying pipeline. A coal-bed methane extraction device is installed at the head of the gas conveying pipeline. Starting from the outlet of the coal-bed methane extraction device, an anti-static device, a water and dust removal device, a coal-bed methane content regulating device and a coal-bed methane pressure adjustment device which are controlled through a control cabinet are sequentially arranged on the gas conveying pipeline in the output direction of coal-bed methane. A coal-bed methane and air mixing device is arranged at the tail of the gas conveying pipeline and used for feeding gas mixed by the coal-bed methane and air mixing device into a coal-bed methane engine for combustion and doing work, and then the coal-bed methane engine drives a generator to work. By means of the method, the low-concentration coal-bed methane can be safely extracted and conveyed, the low-concentration coal-bed methane enables the engine to operate continuously and stably after being regulated, and therefore the purposes of saving energy and reducing emission are achieved.

The invention discloses a ground methane tank capable of regulating methane pressure. The ground methane tank comprises a methane storage tank (1) and a fermenting tank (6) with a feed inlet (2), a feed outlet (3), a methane outlet (4) and a water outlet (5). The methane storage tank (1) and the fermenting tank (6) compose a split type structure and are communicated with each other by a methane pipe. An upper end of the methane storage tank (1) is an exhaust opening (11). A lower end of the methane storage tank (1) is arranged in a pool (8). The bottom of the methane storage tank (1) is communicated with the pool (8). The invention also discloses a manufacturing method of the ground methane tank capable of regulating methane pressure. The ground methane tank capable of regulating methane pressure adopts the split type structure of the methane storage tank (1) and the fermenting tank (6) and can regulate methane pressure in the methane storage tank (1) to maintain throughout the balance between the methane pressure and the atmospheric pressure. The ground methane tank capable of regulating methane pressure can be formed directly from flexible materials through curling and thus overcoming volume limitation. The ground methane tank capable of regulating methane pressure is suitable for large-scale production and popularization, has a simple structure, is beneficial for manufacture, and is convenient for use.

The invention relates to a rotary valve based on methane pressure swing adsorption and an adsorption method of the rotary valve. The rotary valve comprises an upper valve, a lower valve and a support frame for fixing the rotary valve; the upper valve comprises an upper valve element, a finished product gas exhaust hole, a finished product gas exhaust groove, a first even-drop hole, a second even-drop hole, a third even-drop hole, a first low-pressure constant-pressure hole, a high-pressure constant-pressure hole, a first even-rise hole, a second even-rise hole, a third even-rise hole and a second low-pressure constant-pressure hole. The lower valve comprises a lower valve core, a product gas inlet hole, a product gas inlet groove, a desorption groove, a vacuum groove, an upper ring groove, a lower ring groove and a sealing ring. A speed reducer is arranged between the upper valve and the lower valve. According to the speed reducer, a power input shaft is coaxially connected with a driving motor, a power output shaft extends upwards and downwards to be provided with a coaxial main rotating shaft, and the upper end and the lower end of the main rotating shaft are provided with an upper connecting shaft and a lower connecting shaft. According to the rotary valve based on methane pressure swing adsorption and the adsorption method of the rotary valve, the opening and closing functions of multiple valves are integrated, the control process is simple, and the use amount of finished gas in the desorption process is reduced.

The invention discloses a modularized universal methane tank with an adjustable volume. The tank is cylindrical, square or elliptical and is formed by splicing tank end head modules (1), a tank feed and discharge module (2) and volume adjusting modules (3); and the volume of the tank can be adjusted within a certain range by increasing or reducing the number of the mounted volume adjusting modules. The tank end head modules are arranged at the two ends of the tank, and the tank feed and discharge module and the volume adjusting modules are arranged in the middle of the tank, so that closeness of the tank is guaranteed; the modules are connected by using a prearranged flange and are adhered; the tank feed and discharge module is provided with a feed and discharge port, so that feed and discharge are facilitated; the feed and discharge port is firmly connected with a sealing cover (4) by using bolts, so that air-tightness of the tank is guaranteed; and the sealing cover is provided with an air nozzle and a pressure relief module (5), so that external gas supply and methane pressure in the tank do not exceed a safety range. The methane tank has the advantages of simple structure, high universality and strength, practicability, easiness for disassembly and assembly, convenience for industrial production, installation and transportation and simplicity in operation and maintenance.