7results about How to "Increase fluid pressure" patented technology

An auto-occlusion safety device is provided for use in preventing rupture of infusion components during rapid infusion procedures. An occlusion valve is disclosed having a threshold pressure that is less than a rupture tolerance of the infusion system components. As the fluid pressure of the infusion system increases beyond the threshold pressure of the occlusion valve, the occlusion valve is automatically activated thereby occluding fluid flow upstream from a vulnerable infusion component. An accumulator is further disclosed for use in combination with the safety device to compensate for time delays in full activation of the occlusion valve.

The invention discloses a self-cleaning chemical plunger pump, which belongs to the field of pumps, and comprises a pump body, a water inlet pipe and a water outlet pipe are detachably mounted on the pump body, the water inlet pipe is communicated with the water outlet pipe, a base is detachably mounted on the pump body, and a first clamping seat is detachably sleeved on the water inlet pipe. According to the self-cleaning chemical plunger pump, through the arranged filter component, after the filter component is vibrated by the linkage cleaning component, on one hand, impurities on a filter screen plate can be vibrated to fall off and washed by fluid, and on the other hand, when the filter screen plate moves backwards, a first spring can be driven to be compressed, so that the impurities on the filter screen plate can be cleaned; and after the linkage cleaning component retreats, the first spring can push the filter screen plate to perform reciprocating self-vibration, so that the vibration effect on the filter screen plate is further enhanced, and the cleaning effect on the filter screen plate is enhanced.

The invention relates to a method for calculating the effective burying amount of green methanol generated by H2 / CO2 collaborative storage, which comprises the following steps of: establishing an underground methanol flow control equation based on the mass conservation law of a porous medium and the Darcy flow law; carrying out numerical discretization of a finite difference format on the underground methanol flow control equation; establishing an underground green methanol micro-compressible flow model, and solving distribution of liquid phase saturation S1 and liquid phase fluid pressure P1; based on an underground green methanol micro-compressible flow model, the influence of the capillary force effect and the relative permeability on methanol flow is analyzed, along with the increase of the capillary force effect and the relative permeability, the fluid pressure and saturation diffusion are also increased, and the capillary force effect and the relative permeability are favorable factors for methanol storage; and quantitatively characterizing the influence of capillary force action and relative permeability factors on methanol burying, and calculating the effective burying amount of methanol. According to the invention, underground flow of methanol is simulated, and the effective burying amount of methanol can be calculated.

The invention relates to the technical field of reaction kettles, in particular to a chemical raw material synthesis reaction kettle which comprises a reaction kettle shell, a base fixedly mounted at the bottom of the reaction kettle shell and a top cover detachably mounted at the top of the reaction kettle shell. The lower end of the driving shaft rotationally extends into the reaction kettle shell and is provided with a frame type stirrer; the frame type stirrer is driven by the driver to move to perform mixing and stirring work; the frame type stirrer moves to enable liquid making contact with the lower surfaces of the movable blades to flow with the inclination angle of the movable blades as a path, then the flowing direction of the liquid is changed, the liquid penetrating through the guide channel flows out from the water outlet, two strands of vertical V-shaped fluid are formed, and the movement tracks of the upper layer and the lower layer of the fluid can be broken at the same time; the fluid flows disorderly, the contact effect of the fluid is further improved, and the mixing reaction efficiency is improved.

This invention relates to a method for operating a vehicle seat valve, wherein the piston of the vehicle seat valve moves from a closed position to an open position or vice versa by applying voltage to a drive mechanism, particularly an electromagnetic drive mechanism. The power of the drive mechanism is adjusted via an effective voltage that can be varied by pulse width modulation of a pulse voltage having a constant frequency. To move the piston from its closed position toward its open position, the duty cycle of the pulse width modulation is first increased from a resting duty cycle, particularly 0%, to an initial duty cycle of less than 100%, particularly less than 50%, and then increased to a final duty cycle, particularly to 100%, after the piston reaches the open position and / or upon detection of an obstruction preventing the piston from moving before reaching its open position.

The invention relates to the technical field of data storage, in particular to shipborne ship data recording and storing equipment which comprises a storage frame, and a detachable cover plate is arranged at the top end of the storage frame; and the damping mechanism comprises a piezoelectric ceramic piece used for sensing vibration and generating electricity, a supporting plate is slidably connected to the inner wall of the storage frame, and a black box is detachably arranged at the top end of the supporting plate. Mechanical vibration is converted into electric energy through the piezoelectric ceramic piece. When the ship jolts and vibrates, the piezoelectric ceramic pieces are extruded or stretched, so that current is generated. The current is amplified and then led into the first electromagnetic plate, the suspension height of the supporting plate is adjusted by adjusting the repulsive force of the first electromagnetic plate to the first permanent magnet plate, meanwhile, the current is also led into the second electromagnetic plate, the second permanent magnet plate drives the damping plate to extrude the supporting plate, and vibration energy is dissipated through friction between the supporting plate and the damping plate.

The present invention relates to the technical field of data storage, and in particular to a ship-borne ship data recording and storage device, comprising a storage frame, a removable cover plate is arranged on the top of the storage frame; a shock absorbing mechanism, the shock absorbing mechanism comprises a piezoelectric ceramic sheet for sensing vibration and generating electricity, and a support plate is slidably connected to the inner wall of the storage frame, and a black box is detachably arranged on the top of the support plate. The present invention converts mechanical vibration into electrical energy through piezoelectric ceramic sheets. When the ship bumps and vibrates, the piezoelectric ceramic sheet is squeezed or stretched, thereby generating current. This current is amplified and then passed into the first electromagnetic plate, and the suspension height of the support plate is adjusted by adjusting the repulsive force of the first electromagnetic plate on the first permanent magnet plate. At the same time, the current is also passed into the second electromagnetic plate, so that the second permanent magnet plate drives the damping plate to squeeze the support plate, and the vibration energy is dissipated through the friction between the support plate and the damping plate.