40results about How to "Control gas pressure" patented technology

The invention relates to a rubber diaphragm synthetic material for a pressure-bearing gas pressure regulator, and a preparation method of the rubber diaphragm synthetic material. The rubber diaphragm synthetic material for the pressure-bearing gas pressure regulator comprises the following components in part by weight: 70-90 parts of nitrile rubber, 30-10 parts of chlorinated polyethylene, 10-30 parts of plasticizer, 30-50 parts of silica, 6-10 parts of vulcanizing agent and vulcanization accelerator and the balance of being other processing aids. According to the preparation method, the nitrile rubber and the chlorinated polyethylene are used as a main body, and simultaneously, an acid-filler material and a mineral oil type softener are avoided being used; in vulcanization system, low sulfur and high accelerator, peroxides and other series are adopted, so that the solubility resistance is ensured on the basis of ensuring certain elasticity; according to the rubber membrane obtained from the components by the method provided by the invention, the energy consumption is low in the rubber mixing process, the dimensional stability of an extrudate is good, the rubber surface quality is good, and under the premise of ensuring the processing performance, the performance of the rubber membrane is improved, an the service life of the rubber membrane is prolonged.

The invention discloses an asymmetric hybrid mesh electrode porous collector plate double-diaphragm safety valve coiled battery which comprises a battery shell and a battery cell, and is characterized in that the battery cell is coiled into a cylinder through a positive plate, a negative plate and a diaphragm positioned between the positive plate and the negative plate through a battery cell winding shaft; a positive collector plate and a negative collector plate are respectively arranged on the tops of two ends of the battery cell; a tab with equal length to the positive plate, namely a positive continuous tab, is arranged on the top end, which is close to one side of the positive collector plate, of the positive plate; the negative plate is a hybrid mesh electrode; a high-strength conductive fiber mesh serves as a bottom plate; and coatings of ruthenium oxide and other metallic oxides in point shape distribution and negative active substances are arranged on the bottom plate. The battery disclosed by the invention has the beneficial effects that due to the unique end-face collector structure and the hybrid mesh electrode, the current conduction ability is effectively improved, and the battery has super-capacitance high-rate charge and discharge characteristics; and moreover, the double-diaphragm safety valve is further safe, so that the performance of the battery is improved.

The invention provides a wound battery with asymmetric composite mesh electrodes, perforated collector plates and double-membrane safety valves. The wound battery comprises a battery case and a battery core; the storage battery is characterized in that the battery core is a cylindrical body formed by winding a positive plate, a negative plate and a membrane located between the positive plate and the negative plate through a battery core reel; a positive collector plate and a negative collector plate are arranged at the tops of two ends of the battery core separately; a tab, namely a positive continuous tab, which is equal to the positive plate in length is arranged at the top end of one side, close to the positive collector plate, of the positive plate; and a spiral groove body, namely a positive plate clamping groove is arranged in the corresponding collector plate. The wound battery has the beneficial effects that the current conducting capability is effectively improved through unique end-surface collector structures and high-strength fiber mesh composite electrode plates, and meanwhile, the battery has high-rate charging and discharging characteristics of a super-capacitor; and the double-membrane safety valves are safer, so that the performance of the storage battery is further improved.

A winding type lead-acid storage battery with continuous tabs and a membrane safety valve comprises a battery shell, a battery cell and the safety valve and is characterized in that the battery cell forms a cylindrical body by winding a positive pole plate, a negative pole plate and a separator by a battery cell winding shaft, wherein the separator is arranged between the positive pole plate and the negative pole plate, a positive current collection disc and a negative current collection disc are respectively arranged at tops of two ends of the battery cell, a tab, namely a positive continuous tab is arranged at a top end of one side, near to the positive current collection disc, of the positive pole plate and is equal to the positive pole plate in length, a spiral groove, namely a positive pole plate clamping groove is formed in the current collection disc, and the continuous tabs of the pole plates are clamped in the pole plate clamping grooves along the pole plate clamping grooves and are fixed by a welding method. The winding type lead-acid storage battery has the beneficial effects that by a special end-surface current collection structure, the current collection areas of the battery pole plates are expanded, and the mechanical strength and the anti-vibration performance of electrodes are substantially improved; and the battery can be protected very well by the dual-membrane safety valve, so that the safety of the battery is improved, and the cycle lifetime of the battery is prolonged.

Disclosed is a winding battery equipped with a continuous tab asymmetrical mixed net-shaped electrode dual-film safety valve. The winding battery comprises a battery shell and a cell; the winding battery is characterized in that cell comprises a positive electrode plate, a negative electrode plate and a diaphragm positioned between the positive electrode plate and the negative electrode plate, and the cell is wound into a columnar body through a cell winding shaft; a positive electrode current collecting tray and a negative electrode current collecting tray are arranged on the end top parts of the two ends of the cell respectively; a tab, which is as long as the positive electrode plate, and namely, a positive electrode continuous tab, is arranged at the top end on one side, close to the positive electrode current collecting tray, of the positive electrode plate; a spiral groove body, namely a positive electrode plate clamping groove, is formed in the current collecting tray; the negative electrode plate is a mixed net-shaped electrode and takes a high-strength conducive fiber net as a bottom plate; and a metal oxide coating layer in dotted distribution, such as ruthenium oxide and the like, and a negative electrode active material are arranged on the bottom plate. The winding battery has the beneficial effects as follows: by virtue of the unique end plane current collecting structure and the mixed net-shaped electrodes, the current conduction capability is effectively improved; meanwhile, the battery has the super-capacitor high-rate charging and discharging characteristic; and the dual-film safety valve is safer, so that the performance of the battery is improved.

A winding battery with asymmetric composite meshed pole plates, same-direction electrodes and a membrane safety valve comprises a battery shell and a battery cell and is characterized in that the battery cell forms a cylindrical shape by winding a positive pole plate, a negative pole plate and a separator by a battery cell winding shaft, wherein the separator is arranged between the positive pole plate and the negative pole plate, a positive current collection disc and a negative current collection disc are respectively arranged at tops of two ends of the battery cell, a tab, namely a positive continuous tab is arranged at top end of one side, near to the positive current collection disc, of the positive pole plate and is equal to the positive pole plate in length, a spiral groove, namely a positive pole plate clamping groove is formed in the current collection disc, a negative terminal is led to a positive end direction of the battery by an electrode terminal protection sleeve, and the electrode terminal protection sleeve is arranged on a side surface of the battery shell. By a special end-surface current collection structure and the high-strength fiber meshed composite pole plates, the current conduction capability is effectively improved; meanwhile, the battery has high-rate charge and discharge characteristic of a supercapacitor; and the dual-membrane safety valve is safer, so that application performance of the storage battery is further improved.

The invention relates to a control method and device for a vehicle-mounted hydrogen system and the vehicle-mounted hydrogen system, belonging to the field of fuel cell buses. The method includes: establishing a pressure prediction model of the output gas of the on-board hydrogen system, determining a pressure prediction value for controlling the output gas pressure of the on-board hydrogen system according to the pressure prediction model; calculating the difference between the pressure prediction value and the set target pressure value, and obtaining Prediction error; obtain the actual pressure value of the output gas of the on-board hydrogen system, calculate the difference between the actual pressure value and the target pressure value, and obtain the actual error; compare the prediction error and the actual error, and when the prediction error is smaller than the actual error, use the pressure prediction model Output the pressure prediction value at the next moment, as the target pressure at the next moment, and control the on-board hydrogen system to output gas. The present invention adjusts the pressure of the output gas of the vehicle-mounted hydrogen system in advance by pre-judging the change trend of the output pressure of the vehicle-mounted hydrogen system, so that the supplied hydrogen can meet the requirements of the fuel cell system.

The invention provides an electrostatic chuck which particularly comprises the components of a base board; and a ceramic electrolyte substrate which has a first main surface. The electrostatic chuck is characterized in that the first main surface at least comprises a first area and a second area which is adjacent to the first area; the first area is provided with a plurality of first grooves, at least one first gas guiding hole which is connected with at least one of the plurality of first grooves, at least one second groove which extends in a direction that is crossed with the plurality of first grooves, wherein the planar shape of the plurality of first grooves is approximately circular, and the plurality of first grooves are coaxially arranged. The second groove is connected with at least two first grooves. When projected to a plane which is perpendicular with a first direction from the base board to the ceramic electrolyte substrate, at a part which is connected with the first grooves and the second groove, at least one part of the first gas guiding hole is superposed with at least one in the first grooves and the second groove.

The invention discloses a system for recovering, storing and utilizing boil-off gas in a liquid cargo tank of an LNG ship by using a tube-bundle type high-pressure gas cylinder group, including a vacuum-proof valve, a gas compressor, a heat exchanger, a tube-bundle type high-pressure gas storage cylinder group, and a gas pressure regulating valve And the buffer gas cylinder is connected to the gas host in turn to provide LNG BOG gas fuel for the host. The invention realizes the recovery, storage and utilization of the evaporated gas of the liquid cargo tank at normal temperature, controls the pressure of the cargo tank within a safe range, solves the problem of excess or insufficient LNG BOG, provides a stable BOG fuel supply for the main engine, and avoids the loss of the LNG evaporated gas. Vents to atmosphere, costly reliquefaction units or gas flares, avoid the use of insulating materials and cryogenic steel. The invention realizes energy saving and emission reduction, natural gas saving, environmental protection, low cost, flexible arrangement and universal use.

Disclosed is a liquid flow circulation honeycomb type zinc air battery equipped with a capsule-film safety valve. The zinc air battery comprises a battery reaction tank, an air electrode lead wire, and a zinc electrode lead wire, wherein the battery reaction tank is formed by single tubular reaction tanks in an arrangement way; a square upper electrolyte collecting tank and a square lower electrolyte collecting tank connected with each single tubular reaction tank are formed in the upper and lower ends of each single tubular reaction tank respectively; a single columnar zinc electrode is arranged in the tubular centre of each single tubular reaction tank; the bottom of each lower electrolyte collecting tank adopts an inverted pyramid shape; a pyramid-shaped conical filter is arranged at the bottom of a filtering tank; an electrolyte is pumped to each upper electrolyte collecting tank through a reflux pump and a reflux pump return pipe; and a safety valve with a dual-film structure is arranged on a cover plate of the reaction tank. The zinc air battery is high in zinc loading amount in one time, capable of realizing energy supplying as a common internal combustion engine and capable of being started and closed rapidly, and has a dual gradient protection effect due to the safety valve; and by virtue of the characteristics, the zinc air battery can satisfy requirement a vehicle power supply and is safer in use.

A symmetric hybrid mesh plate co electrode double membrane safety valve coiled battery comprises a battery shell and a battery cell. The symmetric hybrid mesh plate co electrode double membrane safety valve coiled battery is characterized in that the battery cell comprises a positive plate, a negative plate and a diaphragm located between the positive plate and the negative plate, the positive plate, the negative plate and the diaphragm are coiled to form a column through a battery cell winding shaft, and a positive current collector and a negative current collector are arranged on the end roofs of the two ends of the battery cell; an electrode lug with the length equal to that of the positive plate is arranged at the top end of the side, close to the positive current collector, of the positive plate, and a spiral slot is formed in the current collector; a negative terminal is introduced to the positive terminal direction of the battery through an electrode terminal protection cover arranged on the side surface of the battery shell; the positive plate and the negative plate are hybrid mesh electrodes, a high-strength conductive fiber mesh serves as a bottom plate, the bottom plate is provided with metal oxide coatings such as ruthenium oxide and positive and negative active materials which are distributed in a dotted mode. The symmetric hybrid mesh plate co electrode double membrane safety valve coiled battery has the advantages that the current conducting capacity is effectively improved through the unique end surface current collection structure and the hybrid mesh electrodes; meanwhile, the battery has super-capacitor characteristics, and a double membrane safety valve makes the battery safer.