30results about How to "Reduced high pressure requirements" patented technology

The invention discloses a preparation method and a preparation device of natural gas hydrate with uniform high saturability in sediment. The device comprises a stable pressure gas supply module, a constant pressure liquid supply module, an automatic control module and a data acquisition and processing module, wherein a reaction kettle consists of an inner kettle body and an outer kettle body; the inner kettle body is filled with sediments; solutions are filled in a cavity which is formed between the two kettle bodies and are uniformly dispersed into the sediment through micropores in the peripheral wall surfaces of the inner kettle body under the constant pressure condition. According to the preparation method and the preparation device, the pressure in the kettle body and the supplement of the solutions are continuously and stably controlled by using a constant pressure automatic control system, and the sediment system with high saturability of the hydrate can be prepared so as to lay a reliable experiment foundation for natural gas hydrate reservoir exploitation in the simulated natural world.

The invention relates to a deep sea reverse osmosis seawater desalination device. The device comprises a lifting device and a fresh water storage tank, wherein the lifting device and the fresh water storage tank are arranged on a semi-submersible ocean platform; the device body is arranged in an outer frame, and the outer frame is connected with the lifting device through a sling; the device bodyis immersed in seawater along with the outer frame and can be lifted along with the sling; the filter box of the device body is communicated with a seawater inlet main pipeline; a filter box, a waterinlet pump, a heating device and a reverse osmosis membrane element are sequentially connected with each other; the reverse osmosis membrane element is divided into three branches, a first branch is communicated with a fresh water tank, a second branch is communicated with a concentrated seawater discharge pipeline, and a third branch is communicated with a water return tank; the fresh water tankis connected with an air pipe which is communicated with the atmosphere; the fresh water tank is also connected with the fresh water storage tank through a high-pressure pump and a fresh water conveying pipeline. The device solves the problem of difficulty in maintaining and cleaning caused by placing devices in the deep sea; the device also solves the problems of low water yield and high water inlet pressure requirements caused by low seawater temperature, and increased cost caused by increase of the number of membrane elements.

Provided are a mixed refrigeration system and a quick freezing method thereof. The mixed refrigeration system mainly comprises a freezing chamber (16), a contact type cascade heat exchanger (21), a contact type quick freezing system and a carbon dioxide quick freezing circulating system, wherein a tray is arranged in the freezing chamber (16), a contact type cascade heat exchanger (21) is arranged below the tray, the contact type cascade heat exchanger (21) is formed by overlapping an evaporator of a contact type quick-freezing system and a condenser of a carbon dioxide quick-freezing circulating system and serves as a tray support, and the tray is placed on the support. According to the invention, objects to be frozen in different temperature zones are frozen, so that the cooling rate of the objects to be frozen in the cooling zone and the crystallization temperature zone is changed, and the quality of the objects to be frozen is better preserved. The contact type quick-freezing system and the carbon dioxide spraying type quick-freezing system are overlapped, the condensation pressure of carbon dioxide is reduced, and the requirement for high pressure resistance of condensation equipment is lowered.

Provided is a building. A fine water mist fire fighting device, a supporting platform and a rope descending device are arranged above the building. The fine water mist fire-fighting device comprises an electric pipe winding device, a rubber pipe and a fire-fighting spray gun or a sprayer connected with the rubber pipe. The position above the building or the rope descending device is provided with a pulley, a rope winds through the pulley and forms a first stay cord and a second star cord on the two sides of the pulley, the first stay cord is directly connected with the supporting platform or connected with the supporting platform through an inclined stay cord, a traction rope is connected to one side of the supporting platform, and under the building, the electric pipe winding device can be controlled to rotate and the fire-fighting spray gun or the sprayer and the supporting platform are controlled to descend and extend along the outer side of an outer wall of the building by pulling or dragging the descending second stay cord.

The invention discloses a preparation method and a preparation device of natural gas hydrate with uniform high saturability in sediment. The device comprises a stable pressure gas supply module, a constant pressure liquid supply module, an automatic control module and a data acquisition and processing module, wherein a reaction kettle consists of an inner kettle body and an outer kettle body; the inner kettle body is filled with sediments; solutions are filled in a cavity which is formed between the two kettle bodies and are uniformly dispersed into the sediment through micropores in the peripheral wall surfaces of the inner kettle body under the constant pressure condition. According to the preparation method and the preparation device, the pressure in the kettle body and the supplement of the solutions are continuously and stably controlled by using a constant pressure automatic control system, and the sediment system with high saturability of the hydrate can be prepared so as to lay a reliable experiment foundation for natural gas hydrate reservoir exploitation in the simulated natural world.

The invention relates to a large size gallium oxide single crystal Czochralski growing method under the normal pressure. The method includes 1, drying gallium oxide powder in vacuo, removing the adsorbed water, pressing to form material blocks, and obtaining gallium oxide blanks; 2, selecting gallium oxide seeds < 010> < 100> or < 001& gt; orientating the seeds, cutting, cleaning through ultrasonic and drying; filling a crucible of a crystal growth furnace with the gallium oxide blanks, evacuating till (1-3) * 10-4Pa, and injecting 1% oxygen and 99% carbon dioxide gas of one atmospheric pressure; heating and melting the gallium oxide blanks by the medium frequency induction heating manner, necking, shouldering, performing constant diameter growth, ending, extracting crystal, and obtaining the large size gallium oxide single crystal. The method adopts mixed gas with proper ratio, an after heater adaptive to the crucible and a heat insulation system, crystal beta-Ga2O3 can grow in a sealed system under the normal pressure, and volatilization and decomposition of the gallium oxide during the growth of the crystal are overcome.

The invention relates to a building, wherein a water supply pipe or fire-fighting equipment is arranged above the building, the water supply pipe or fire-fighting equipment is connected with a fire-fighting squirt gun or fire-extinguishing equipment launching gun or high-pressure fine water mist fire-extinguishing equipment fire-extinguishing spray gun or ventilation port or fire-extinguishing equipment provided with a water tank, a control switch or control rope is arranged below the building or on the external portion of the building, the control switch can be started or the control rope can be pulled or the control rope can be loosened so as to control the fire-fighting squirt gun or fire-extinguishing equipment launching gun or high-pressure fine water mist fire-extinguishing equipment fire-extinguishing spray gun or ventilation port or fire-extinguishing equipment provided with the water tank to descend from the position above the building along the external wall of the building, and spray fire-extinguishing materials or perform ventilation works or gas exhaust works on the target of the building.

The invention relates to a building, wherein fine water mist fire-extinguishing equipment is arranged above the building, is connected with a water supply pipe, and is connected with one or a plurality of electric pipe winding devices through a glue pipe, the electric pipe winding devices are connected and wound with the glue pipe, the glue pipe extends out from the electric pipe winding device, is directly connected with a fire-extinguishing spray gun or nozzle or is connected with the fire-extinguishing spray gun or nozzle through a connection part, and is arranged on the set position above the building, the fine water mist fire-extinguishing equipment and the electric pipe winding device are connected with a control electric cable provided with a controller or are connected with a control rope connected with the controller, and the control electric cable or control rope extends toward the lower floor of the building or external portion of the building.

The invention relates to a fire-extinguishing rescue method of building. The method comprises that: 1, fine water mist fire-extinguishing equipment is arranged above the building, is connected with a water supply pipe, and is connected with one or a plurality of pipe winding devices or electric pipe winding devices through a glue pipe, the pipe winding devices or electric pipe winding devices are connected and wound with the glue pipe, and the glue pipe extends out from the pipe winding devices or electric pipe winding devices and is directly connected with a fire-extinguishing spray gun or nozzle or is connected with the fire-extinguishing spray gun or nozzle through a connection part; 2, rescue workers are at the lower floor of the building or the external portion of the building, press the controller or pull the control rope so as to control the fire-extinguishing spray gun or nozzle arranged on the roofing to descend onto the target position along the external wall of the building; and 3, the personnel at the firing floors the descending fire-extinguishing spray gun or nozzle to perform fire extinguishing or ventilation through the external opening of the external wall of the building.

Disclosed is a building. Water mist fire extinguishing equipment is arranged on the building and comprises a pressurization device, an electric hose coiling device and a hose, wherein the hose is wound on the electric hose coiling device, extends from the electric hose coiling device and is connected with a fire gun or sprayer. The water mist fire extinguishing equipment is connected with a controller or control switch through a control cable, or a control switch or controller of the water mist fire extinguishing equipment is connected with a control rope. On the lower floor of the building or outside the building, the controller or control switch or control rope can be used for controlling the fire gun or sprayer to fall down along the outer wall of the building, suspend in the target position and spray extinguish materials to a fire floor or carry out ventilation work.

The invention relates to a building, wherein fine water mist fire-extinguishing equipment is arranged above the building, is connected with a water supply pipe, and is connected with one or a plurality of pipe winding devices through a glue pipe, the pipe winding devices are connected and wound with the glue pipe, the glue pipe extends out from the pipe winding device, is directly connected with a fire-extinguishing spray gun or nozzle or is connected with the fire-extinguishing spray gun or nozzle through a connection part, and is arranged on the set position above the building, a roll of control pulling rope 1 and a roll of control pulling rope 2 are wound on the rolling cylinder of the pipe winding device, the winding direction of the control pulling rope 1 and the control pulling rope 2 are opposite, and the control pulling rope 1 and the control pulling rope 2 are arranged inside an embedded pipe and extend downward to the lower floor of the building or external portion of the building.

The invention discloses a building. A water feeding pipe or a fire fighting device is arranged above or below the building. The water feeding pipe or the fire fighting device is connected to a fire extinguishing water gun, an emission gun of a fire extinguishing apparatus, a fire extinguishing spray gun of a high pressure water mist fire extinguishing apparatus, a ventilating opening or a fire extinguishing device with a water tank. The position and direction of the lower part of the building can be adjusted by a deflecting draw rope so that water spray, ventilation or exhausting process is carried out. The deflecting draw rope winds the structure below the building, the ground below the building, or a deflection sheave or a deflection draw ring or a deflection draw rod or a deflection roller arranged on an attached layer roofing of the building, extends outward and is controlled and used.

The invention relates to a building, wherein fine water mist fire-extinguishing equipment is arranged above the building, is connected with a water supply pipe, and is further connected with a glue pipe, the glue pipe is wound on a pipe winding device or electric pipe winding device, extends out from the pipe winding device or electric pipe winding device, and is connected with a fire-extinguishing spray gun or nozzle, a controller or control rope is arranged on the lower floor of the building or the external portion of the building, and the controller is started or the control rope is used so as to control the fire-extinguishing spray gun or nozzle to descend from the position above the building along the external wall of the building.

Disclosed is a building. Water mist fire extinguishing equipment is arranged on the building and comprises an electric hose coiling device and a hose, wherein the hose is wound on the electric hose coiling device, extends from the electric hose coiling device and is directly connected with a fire gun or sprayer or connected with the fire gun or sprayer through a connector. A controller or control rope connected with the water mist fire extinguishing equipment is arranged on the lower floor of the building or outside the building. On the lower floor of the building or outside the building, the controller or control rope can be used for controlling the fire gun or sprayer to fall down along the outer wall of the building, and suspend in the air to carry out fire extinguishing work.

Provided is a building. A fine water mist fire extinguishing device and a rope descending device are arranged on the upper portion of the building. The fine water mist fire extinguishing device comprises electric pipe winding devices and rubber hoses, the rubber hoses are wound on one or more electric pipe winding devices, extend out of the electric pipe winding devices, are connected with a fire extinguishment spray gun or spray head directly or through connecting pieces, and are arranged on the rope descending device. The rope descending device can be controlled to move and stretch out from the outer wall of the building. The fire extinguishment spray gun or spray head can be controlled to descend along the outer side of the outer wall of the building, and a deflection sheave or deflection pull ring or deflection pull rod or deflection roller is arranged on the lower portion of the building.

Disclosed is a building. Water mist fire extinguishing equipment and rope falling equipment are arranged on the building. The water mist fire extinguishing equipment comprises an electric hose coiling device or a non-electric hose coiling device and a hose, wherein the hose is wound on one or more electric hose coiling devices or non-electric hose coiling devices, extends from the electric hose coiling devices or the non-electric hose coiling devices, is directly connected with a fire gun or sprayer or connected with the fire gun or sprayer through a connector and is arranged on the rope falling equipment. On the lower floor of the building or outside the building, the fire gun or sprayer can be controlled to move out and fall down along the outer wall of the building. A deflection pulley or deflection pulling ring or deflection pulling rope or deflection roller are arranged on the lower portion of the building.

The invention relates to a building. Water mist fire fighting equipment and rope descending equipment are arranged above the building; the water mist fire fighting equipment comprises electric hose winders or non-electric hose winders and a rubber hose; the rubber hose is wound on one or more electric hose winders or non-electric hose winders, or directly extends out of the electric hose winders or the non-electric hose winders, or is connected with an extinguishment spray gun or a spray head via a connecting piece and is arranged on the rope descending equipment; the extinguishment spray gun or the spray head can be controlled by a lower floor or the exterior of the building to move out of the rope descending equipment and drops along the outer side of an external wall of the building; and deflection sheaves or deflection pull rings or deflection pull rods or deflection rollers are arranged below the building.

Disclosed is a building. Water mist fire extinguishing equipment, a supporting platform and rope falling equipment are arranged on the building. The water mist fire extinguishing equipment comprises a pipe coiling device, a hose and a fire gun or sprayer connected with the hose, wherein a pulley is arranged on the upper portion of the building or on the rope falling equipment; a rope winds across the pulley and forms a pulling rope I and a pulling rope II on two sides of the pulley; the pulling rope I is directly connected with the supporting platform or connected with the supporting platform through a stay rope; a dragging rope is connected with a side of the supporting platform. On the lower floor of the building or outside the building, the fire gun or sprayer and the supporting platform can be controlled to fall down along the outer side of the outer wall of the building.

The invention discloses a building. A water mist fire extinguishing device is arranged above the building. The water mist fire extinguishing device comprises a pressurization device, an electric winder and a rubber tube. The rubber tube winds the electric winder, extends out of the electric winder, is connected to a fire extinguishing spray gun or a nozzle and is arranged above the building. Through use of a controller 1 or a control rope 1 and use of a controller 2 or a control rope 2, the fire extinguishing spray gun or the nozzle can be controlled to fall off from the upper part of the building along the outer wall of the building and to inject a fire extinguishing material to an object of the building or carry out ventilation. The structure below the building or the ground below the building is provided with a deflection sheave or a deflection draw ring or a deflection draw rod or a deflection roller.

The invention relates to a building, wherein fine water mist fire-extinguishing equipment and rope descending equipment are arranged above the building, the fine water mist fire-extinguishing equipment is connected with a water supply pipe and is connected with one or a plurality of electric pipe winding devices through a glue pipe, the glue pipe is wound on the one or the plurality of the electric pipe winding devices, extends out from the electric pipe winding device, is connected with a fire-extinguishing spray gun or nozzle, and is arranged in the rope descending equipment, the fine water mist fire-extinguishing equipment, the electric pipe winding device and the rope descending equipment are connected with a control electric cable or control rope, the control electric cable or control rope extends downward to the position below the building or the external portion of the building, and that the fire-extinguishing spray gun or nozzle descends from the position above the building along the external wall of the building can be controlled on the position below the building or the external portion of the building.

The invention relates to a fire-extinguishing rescue method for building, which comprises the following steps: 1) a water mist fire extinguishing apparatus is arranged over the building, the water mist fire extinguishing apparatus is connected to one or more pipe reeling device or an electric pipe reeling device through a sebific duct, the above sebific duct is extended from the pipe reeling device or the electric pipe reeling device and directly connected to a fire extinguishing spray gun or a nozzle through a connecting piece; 2)the rescuers press the controller below the building or at external part of the building or pull the control rope for controlling a haulage rope connected to the fire extinguishing spray gun and the fire extinguishing spray gun over the building or the nozzle to drop along the exterior wall of the building, and press the controller of the water mist fire extinguishing apparatus or pull the control rope to turn on the water mist fire extinguishing apparatus; and 3) the rescuers pull the haulage rope at external part of the building and adjust the position and direction of the fire extinguishing spray gun for water spray.

The invention relates to a building, wherein fine water mist fire-extinguishing equipment and rope descending equipment are arranged above the building, the fine water mist fire-extinguishing equipment is connected with a water supply pipe and is connected with one or a plurality of electric pipe winding devices through a glue pipe, the electric pipe winding devices are connected and wound with the glue pipe, the glue pipe extends out from the electric pipe winding device, is directly connected with a fire-extinguishing spray gun or nozzle or is connected with the fire-extinguishing spray gun or nozzle through a connection part, and is arranged on the rope descending equipment, the rope descending equipment can be controlled to move so as to extend out from the external wall of the building, and the fire-extinguishing spray gun or nozzle can be controlled to descend along the outer side of the external wall of the building.

The invention discloses a building. Fine water mist fire extinguishing equipment and rope descending equipment are arranged above the building; the fine water mist fire extinguishing equipment comprises an electric tube coiler and a rubber tube; the fine water mist fire extinguishing equipment, the rope descending equipment and a controller or a control switch or a control rope are connected; a control cable or the control rope which is connected with the controller or the control switch downwards extends to an inferior floor or the outer part of the building; on the inferior floor or the outer part of the building, a fire extinguishing spray gun or a spray head can be controlled to move out of the rope descending equipment and to descend along the outer wall of the building to carry out fire extinguishing work; and a deflection sheave which can be used for regulating the direction of the fire extinguishing spray gun or the spray gun is arranged below the building.

The invention discloses a building. Water mist fire extinguishing equipment is arranged above the building, and comprises a pressurizing device, a pipe winder and a hose, wherein the hose is wound on the pipe winder, extends from an electric pipe winder to directly connect with a fire extinguishing spray gun or a nozzle or through a connecting piece, and is arranged in a set position above the building; a coil of control stay rope 1 and a coil of control stay rope 2 are wound on a drum of the pipe winder; the control stay rope 1 and the control stay rope 2 are opposite in winding direction; and the control stay rope 1 or the control stay rope 2 is pulled to control the drum of the pipe winder to rotate and to control the hose on the pipe winder to fall along an exterior wall of the building and suspend in a target place.

The invention belongs to the technical field of electronics, and provides an ionization combustion circuit and an electric flame stove. The ionization combustion circuit comprises a power supply module, a voltage conversion module, a voltage doubling rectifying module, an ignition module and a combustion module; the power module is used for providing input voltage; the voltage conversion module is connected with the power supply module and is used for converting the input voltage into a driving voltage; the voltage doubling rectifying module is connected with the voltage conversion module and used for generating rectified voltage according to the driving voltage; the ignition module is connected with the voltage doubling rectifying module and used for conducting arc striking according to the rectified voltage; and the combustion module is connected with the voltage conversion module and is used for discharging to the ground according to the driving voltage. Therefore, the working power of the circuit is reduced, the energy is saved, the high-voltage resistance requirement of the device is reduced, and the cost is reduced.

Disclosed is a building. Water mist fire extinguishing equipment, a supporting platform and rope falling equipment are arranged on the building. The water mist fire extinguishing equipment comprises a fire gun. A pulley is arranged on the building or the rope falling equipment, a rope winds across the pulley and forms a pulling rope I and a pulling rope II on two sides of the pulley; the pulling rope I is directly connected with the supporting platform or connected with the supporting platform through a stay rope, and deflection sheaves or deflection rollers or deflection supporting parts are arranged on two sides of the supporting platform. A side of the supporting platform is connected with a traction rope. The front and rear sides of the fire gun are connected with deflection pulling ropes. On the lower floor of the building or outside the building, the pulling rope II, the traction rope and the deflection pulling ropes can be controlled to fall down and extend to the lower portion of the building.

The invention belongs to the preparation field of inorganic nanometer materials, and specifically relates to a method for preparing a ZrO2 nano particle with uniform particle size distribution and surface modified metal cations. The method comprises the steps of adding 30-50 millimole of alkali into an organic solvent without water; fully agitating; adding 5-10 millimole of zircon salt into the solution; agitating until complete dispersion to form a colloid; adding 0-10ml of oleic acid in droplets; placing the colloid in a stainless reactor with an inner polyfluortetraethylene lining; sealingwell; and placing the reactor in a constant temperature oven with the temperature of 120-180 DEG C for reaction for 24-36 hours, so as to obtain cubic phase ZrO2 nano particles at the lowermost layer.The prepared nano particles have particle size of 4.5nm or so, and narrow dispersion, can stably disperse in solvents, such as water, ethanol, etc. and have practical application value. The method has the advantages of simplicity, less time consumption, high yield, lower pressure in reaction process and suitability for industrialized production.