31results about How to "Adjust working pressure" patented technology

The invention discloses a two-way pressure relief valve. A branch pipeline with a branch valve is arranged on a main pipeline, wherein the branch pipeline is connected in parallel with a main valve, and a pressure reducing bin with a plurality of pressure reducing valve blocks are connected in series in the branch pipeline. By arranging the pressure relief branch pipeline connected in parallel with the main pipeline, auxiliary two-way pressure relief and flat pressing functions are realized after the main pipeline is closed. Through the pressure reducing bin connected in series in the branch pipeline, the buffer pressure reducing effect is achieved. Through the flexible pressure reducing valve blocks, certain deformation is generated when the two-way pressure relief valve is impacted by pressure to support liquid discharging. By adjusting the number of pressure reducing valve blocks, the working pressure of the pressure reducing bin can be adjusted. Through the different spacing between the pressure reducing valve blocks, the pressure can be reduced differentially in a progressive mode. Compared with an existing pressure relief valve, the two-way pressure relief valve has the simple structure, small size, small use limit and high reliability, can effectively reduce and smooth the bidirectional surge pressure in a transportation pipeline, and has high practicability and wide applicability.

The invention discloses an automatic condensation water return system which is characterized in that a condensation water recovery tank is connected with a boiler through a deaerator; the deaerator comprises a deaeration head and a water storage tank; the deaeration head is connected with the condensation water recovery tank through a steam pipeline; the bottom of the water storage tank is provided with a communicating pipeline; the bottom of the condensation water recovery tank communicates with the bottom of the deaerator through the communicating pipeline; an electric valve is arranged in the middle of the communicating pipeline; the top of the condensation water recovery tank is provided with an automatic pressure regulating device; the automatic pressure regulating device is used for regulating the steam pressure of the condensation water recovery tank through a pressure regulating valve; the side end of the condensation water recovery tank is provided with a liquid level meter. By using the automatic condensation water return system, the self working pressure of the condensation water recovery tank can be regulated, and the pressure difference between the condensation water recovery tank and the deaerator is made artificially, so that the automatic control of liquid levels of the condensation water recovery tank and the deaerator can be realized; and the deaerator head is used for carrying out thermal deaeration on reverse-osmosis water entering the deaeration head by virtue of flash vaporization steam generated by returned condensation water, and the communicating pipeline is used for returning condensation water to the deaerator, so that the equipment fault is reduced, water and electricity are saved, and equipment operation safety is greatly improved.

The invention relates to an extrusion-type textile flexibility dewatering method and a device. The device comprises a dewatering container, a movable pressing plate, a dynamical system and an electric control system. According to the characteristics of different textiles, a dewatering pressure curve is written, and then the dewatering pressure curve is preset in the electric control system; afterthe dynamical system receives a dewatering pressure curve signal sent by the electric control system, the dewatering pressure curve preset by the electric control system is used for controlling the movable pressing plate to move along the dewatering container so as to cause the movable pressing plate to extrude textile and discharge water extruded from the textile via the dewatering hole of the dewatering container; thus, flexibility dewatering can be effectively carried out on textile, and the textile can be protected from being easily damaged, which is favourable for developing industrial scour industry.

A safe valve function can be obtained by pressing an elastic body into a hole of a container containing a hydrogen storing alloy or the like. A relief valve comprises an elastic body (4) joined to a hole (3) of a container (1) and a retaining plate (6) for pressing the elastic body and has a structure in which when the pressure of hydrogen or the like in the container (1) rises, gas or the like is released to the outside from between an outer surface (3a) of the hole (3) and the elastic body (4) via an escape hole (5) for the gas or the like of the retaining plate (6).

The invention relates to a dual-working-condition gas generating agent powder column. The gas generating agent is installed in a heat-insulating sleeve. The center of the gas generating agent is provided with a high-burning-velocity drug strip, and the surface of the gas generating agent is provided with an inner ring. The combustion-supporting groove and the outer ring combustion-supporting groove, a liner is provided at the side where the side of the gas generating agent is in contact with the heat insulating sleeve. The gas generating agent grain under dual working conditions starts to burn simultaneously from the surface of the gas generating agent, the surface of the combustion-supporting groove and the surface of the high-burning rate grain, and the burning surface shows a slow decreasing trend, and this trend lasts for a long time. The invention is used in a missile servo power device, and has the advantages of low combustion temperature, long duration of slowing down tendency of the combustion surface, multi-stage charge and multi-working-condition pressure through a single combustion rate charge, and the like.

The invention discloses an electric vehicle battery heat preservation structure. The battery includes an outer casing and a battery module set in the outer casing. A liquid-cooled water pipe group is arranged on the lower side of the battery module. The liquid-cooled water pipe group passes through the water inlet and outlet pipes. The joint is connected to the cooling source, and a support beam for supporting the battery module is provided on the bottom edge of the outer casing, and the liquid-cooled water pipe group includes liquid-cooled water pipes arranged side by side and a reinforcement member for improving the bending strength of the liquid-cooled water pipe, The upper side of the liquid-cooled water tube group is closely attached to the lower side of the battery module, and there is a heat insulation gap between the lower side of the liquid-cooled water tube group and the outer shell, and the strengthening member includes a support protrusion abutting against the support beam. The invention can not only effectively improve the heat insulation effect between the liquid-cooled water pipe and the outer shell, avoid heat conduction between the liquid-cooled water pipe and the outer shell, but also ensure the tight fit between the liquid-cooled water pipe and the battery module , so as to improve the heat preservation effect of the battery.

The invention relates to a full-automatic double-workbench plate wiping machine. The full-automatic double-workbench plate wiping machine comprises a machine table, a motion controller, a truss, a first workbench, a second workbench and a plate wiping device. The motion controller is arranged in the machine table; the truss is transversely and fixedly arranged at the upper end of the machine table, and the plate wiping device is arranged on the truss and can move along the truss; the first workbench and the second workbench are longitudinally arranged at the upper end of the machine table side by side and can longitudinally move to the position below the truss; the first workbench, the second workbench and the plate wiping device are all controlled by the programmable motion controller; and the plate wiping device provides downward adjustable working pressure through a needle type air cylinder. Compared with the prior art, the double workbenches of the full-automatic double-workbench plate wiping machine can conduct plate wiping, and COB plate wiping work can be rapidly and stably completed with high quality.