18results about How to "Increased pressure loss" patented technology

The invention discloses a variable flow rate spraying device, comprising a nozzle and a flow guide tube, wherein the flow guide tube comprises an inner flow guide tube and an outer flow guide tube, the inner flow guide tube is arranged in the outer flow guide tube, a plurality of semicircular spray ports are arranged in the circumferential direction of the front end of the nozzle, the spray ports obliquely penetrate the nozzle and form an oblique groove in the nozzle, a flow regulating device comprises a push rod bin, a push rod and a piston, the push rod bin is fixed at the right end of the interior of the flow guide tube, one end of the push rod is connected to the push rod bin, and the other end is connected to the piston, the piston comprises a front section piston and a rear section piston which are fixedly connected, the outer cylindrical surface of the front section piston is combined with the oblique groove to form a water flow channel, the rear section piston is fitted with the inner wall of the flow guide tube, and a piston oblique surface is formed at the connection between the front section piston and the rear section piston; the invention can flexibly adjust the cross-sectional area of ​​the water flow channel by using a special nozzle and a piston in combination, thereby adjusting the spray flow rate and spray distance of water.

One of problems to be solved is to provide an adsorbing material suitable for canisters and enabling reduction in pressure loss. Another one of the problems to be solved is to provide, using activated carbon fiber, a formed adsorber that is a formed product difficult to be deformed, the formed adsorber serving as an adsorbing material for canisters, the adsorbing material having excellent effects. The formed adsorber for canisters satisfies at least the following conditions (A), (B), and (C). (A) The formed adsorber is a formed product including activated carbon fiber, granular activated carbon, and a binder. (B) A weight ratio of the activated carbon fiber to the granular activated carbon in a total weight of the activated carbon fiber and the granular activated carbon is 5 to 95 parts by weight of the activated carbon fiber to 95 to 5 parts by weight of the granular activated carbon. (C) A weight ratio of the binder in the formed adsorber is 0.3 to 20 parts by weight to 100 parts by weight of the activated carbon fiber and the granular activated carbon that are contained in the formed adsorber.

The present invention relates to an ophthalmic pressure control system, comprising: a pressure regulator having an input port and an output port; and an infusion line having a proximal end and a distal end, the proximal end being connected to the output port of the pressure regulator, and the distal end being detachably connected to an ophthalmic irrigation module. In addition, the system comprises: a control unit driving the pressure regulator to control the infusion fluid pressure at the distal end of the ophthalmic irrigation module. The control unit is arranged to perform a fluid calibration process, the fluid calibration process comprising the step of determining the fluid impedance of the ophthalmic irrigation module. The infusion line is associated with a set of components, the set of components comprising a first ophthalmic irrigation device and a second ophthalmic irrigation device, or the ophthalmic irrigation module is an ophthalmic irrigation device for surgery.

The present application provides an objective lens, an objective lens system, a photolithography machine, and a design method of a voltage-stabilizing structure for an objective lens, and belongs to the technical field of photolithography machines. The present application can effectively convert a transient pressure drop into a steady-state pressure drop by arranging a voltage-stabilizing tube section at the gas outlet of the objective lens body. As a result, the gas pressure fluctuation inside the objective lens will be greatly reduced, thereby reducing the refractive index change caused by the pressure fluctuation, improving the stability of the optical performance, and due to the stability of the gas pressure, the change of the refractive index will also be effectively controlled.

This invention discloses a variable flow pulsating flow pressure balancing system, belonging to the field of gas flow technology. It includes a pressure-stabilized gas source, characterized by: a gas flow meter and a synchronization valve installed on a first gas flow pipe, a first pressure tap on the first gas flow pipe, and a second pressure tap on a second gas flow pipe. One end of the main pipeline is connected to the pressure-stabilized gas source, and the other end of the main pipeline is connected to the inlet of a variable flow pulsating flow pressure balancer. The outlet of the variable flow pulsating flow pressure balancer is connected to both the first and second pressure taps. A first pressure transmitter is installed on the first pressure tap, and a second pressure transmitter is installed on the second pressure tap. A throttling valve is installed on the second gas flow pipe, located at the second pressure tap. When used in variable flow or pulsating flow scenarios, this invention can effectively reduce pressure fluctuations, ensure that the gas flow state in the pipeline remains stable within a very short time, and improve measurement accuracy.

The present invention provides a turbine exhaust chamber housing that forms a turbine exhaust chamber into which a hot medium flows through the moving blades of the final stage of the turbine, and forms a plurality of exhaust chamber outlets for discharging the hot medium from the turbine exhaust chamber toward the outer side of the turbine in a radial direction toward the turbine.

The utility model discloses a marine high-pressure exhaust oil-water removal discharge box which comprises a box body and a plurality of vertical partition plates arranged on the inner wall of the box body in a staggered mode in the horizontal direction. Horizontal filter screens are arranged between the adjacent vertical partition plates and between the box body and the vertical partition plates, the vertical partition plates and the horizontal filter screens divide the inner space of the box body into a plurality of subspaces which are communicated in sequence, and the subspaces which are communicated in sequence are connected to form a snakelike exhaust passage; the exhaust passage can be communicated with a chimney, an air outlet of the exhaust passage is communicated with the atmosphere, and air exhausted into the exhaust passage from the chimney is filtered by the horizontal filter screen and then exhausted from the air outlet. The problem that gas containing oil and water exhausted by the high-pressure air compressor through a chimney causes adverse effects on the ship is solved.

The invention relates to an ophthalmic pressure control system comprising: a pressure regulator having an input port and an output port; and an infusion line having a proximal end and a distal end, the proximal end being connected to the output port of the pressure regulator and the distal end being removably connected to the ophthalmic irrigation module. Further, the system includes a control unit that drives the pressure regulator to control infusion fluid pressure at the distal end of the ophthalmic irrigation module. The control unit is arranged for performing a fluid calibration process comprising the step of determining a fluid impedance of the ophthalmic irrigation module. The infusion line is associated with a kit of parts including a first ophthalmic irrigation device and a second ophthalmic irrigation device, or the ophthalmic irrigation module is an ophthalmic irrigation device for surgery.

This application relates to an engine, powertrain, and vehicle. The engine includes: a main body; a turbocharger disposed on the exhaust side of the main body; an intake manifold disposed on the intake side of the main body; and an intercooler, partly disposed on the intake side of the main body and partly disposed on the cylinder head side of the main body. Both the turbocharger and the intake manifold are disposed close to the cylinder head side of the main body. The intercooler is fluidly connected between the intake manifold and the turbocharger. The beneficial effect of this application is that by rationally arranging the main body, turbocharger, intercooler, and intake manifold in the engine, pressure loss caused by excessively long air passages is mitigated.

The invention provides an objective lens, an objective lens system, a photoetching machine and a design method of a voltage stabilizing structure for the objective lens, and belongs to the technical field of photoetching machines. According to the invention, the air outlet of the objective lens body is provided with the voltage-stabilizing tube section, so that the transient voltage drop can be effectively converted into the steady-state voltage drop. Therefore, the gas pressure fluctuation in the objective lens is greatly reduced, the refractive index change caused by the pressure fluctuation is reduced, the stability of the optical performance is improved, and the change of the refractive index is effectively controlled due to the stability of the gas pressure.

The invention relates to a fluid passage system (100) for a partition of a turbine engine of an aircraft, comprising a plate (110) configured to be attached to the partition, characterized in that: - the plate (110) comprises a plurality of fluid passage channels, the channels being joined together at least two by two; - the peripheral wall of each channel extends on both sides of the plate to form a first duct (130) and a second duct (140); and - the plate (110) forms a single integral part with the first and second ducts (130, 140).

The utility model discloses a base subassembly in automatic cleaning filter, including base, be equipped with the open slot for installing filter cylinder subassembly in the middle of base, be equipped with the outer installation groove and the inner installation groove of the concentricity setting in the open slot, the shell of filter cylinder subassembly is fixedly connected with base through the outer installation groove, the first filter skeleton of filter cylinder subassembly is fixedly connected with base through the inner installation groove, be equipped with the through -hole for installing motor subassembly in the open slot, and the output of motor subassembly passes through the through -hole and is connected with the second filter skeleton of filter cylinder subassembly, be equipped with liquid inlet and blowdown in the side of base, and liquid inlet and blowdown all are linked together with the open slot. The utility model discloses through base integration filter cylinder installation, motor fixed and fluid passage function, utilize the concentricity installation groove and promote positioning accuracy, and optimize modular installation through standardization interface design, has the advantages such as improving structure integration, enhancing positioning accuracy and optimizing modular design.

The invention discloses a catalyst structure, a device and a method for preparing synthesis gas. The catalyst structure for preparing synthesis gas includes: a substrate including a flow path separated by a partition wall; and a catalytic material disposed on a surface of the partition wall of the substrate and including a metal oxide support and metal active particles supported on the metal oxide support, in which the substrate includes silicon carbide (SiC), silicon nitride (Si3N4), a metal silicon (Si)-silicon carbide (SiC) composite, a metal silicon (Si)-silicon nitride (Si3N4) composite, or a combination thereof.

The rotary organic nanofiltration membrane filtering device comprises a pressure container, a driving device, a shaft body which extends out of the pressure container and is connected with the driving device, and a filtering structure which is arranged on the shaft body in the pressure container, the driving device drives the shaft body to drive the filtering structure to rotate, and filtrate penetrating through the filtering membrane enters the liquid discharging channel to the outside of the pressure container after passing through the collecting space to be discharged. By introducing a rotary motion mechanism, the problems of high energy consumption, easiness in blockage, difficulty in cleaning and the like of a traditional roll type nanofiltration membrane are successfully solved, and a filtering device which is more efficient, energy-saving and easy to maintain is provided for a user.

The present invention provides a honeycomb filter capable of suppressing an increase in pressure loss and achieving excellent purification performance. A honeycomb filter is provided with: a columnar honeycomb structure section (4) having porous partition walls (1) arranged so as to surround a plurality of cells (2); and a hole sealing part (5) in which the cross-sectional shape of the inflow cells (2a) is octagonal, the cross-sectional shape of the outflow cells (2b) is quadrilateral, the area ratio (S1 / S2) of the cross-sectional area (S2) of the outflow cells (2b) to the cross-sectional area (S1) of the inflow cells (2a) is 1.40-2.20, and a central part (15) in a cross-section orthogonal to the direction in which the cells extend is configured from a cell straight region (15A) in which the cells extend linearly. The outer peripheral section (16) in this cross-section is configured from a cell bending region (16A) in which cells extend so as to bend toward the outer peripheral side, and the percentage of the bending height h of the cell bending region (16A) relative to the total length L of the honeycomb structure section (4), i.e., h / L * 100%, is 1.00-3.00%.

The invention provides a display panel and a display device, and the display panel comprises a pixel definition layer which is provided with a plurality of opening groups, and each opening group comprises a first opening, a second opening, a first connection opening and a second connection opening; and a light emitting layer; the light-emitting unit is located in the first opening, and the virtual light-emitting unit is located in the second opening; the total size of the plurality of first connection openings in the first direction is L1, the size of the plurality of first connection openings in the first direction is b1, the size of one second connection opening in the first direction is L2, the size of one second connection opening in the first direction is b2, and L1, L2, b1 and b2 meet the formula: L1 / b1gt; l2 / b2. The display panel provided by the invention has a narrow frame and can reduce the range of virtual pixels.

The invention provides a semiconductor device, which can prevent the heat dissipation performance from being reduced. The cooling device is provided on the rear surface of the heat dissipation plate, and is provided with a storage section (31), a guide section (32), and a guide plate. One end of the guide part (32) is connected to the inner side of the short side wall (31b), the other part of the guide part (32) is connected to the end of the short side wall (31b) via the inflow port (31g), and the guide part (32) is formed on the bottom surface so as to divide a guide region (32i) communicating with the inflow port (31g) and a storage region (31i) outside the guide region (32i). Furthermore, the guide section (32) is configured so that the guide region (32i) of the guide section (32) becomes smaller as the guide region (32i) moves away from the inflow port (31g) when viewed from the inflow direction of the inflow port (31g) of the reservoir section (31) toward the guide region (32i).

The utility model provides a centralized control type differential pressure real-time monitoring device for a purification plant. The centralized control type differential pressure real-time monitoring device comprises a first differential pressure gauge which is communicated with a first function room and a second function room through connecting pipelines; the second differential pressure gauge is communicated with the third function room and the fourth function room through a connecting pipeline, the third differential pressure gauge enables a high-pressure port to be communicated with the fifth function room through a centralized control pipeline, and a low-pressure port to be communicated with atmospheric pressure. The pressure difference between the third function chamber and the fourth function chamber is calculated through the second differential pressure gauge, the absolute pressure value of the fifth function chamber and the atmospheric pressure is calculated through the third differential pressure gauge, the pressure difference between the second function chamber and the fifth function chamber is calculated through comparison with the first differential pressure gauge, and the pressure difference between the fourth function chamber and the fifth function chamber is calculated through comparison with the second differential pressure gauge. The resource loss is reduced, and errors can be reduced to a certain extent. And moreover, the pressure difference condition among all purification functions can be managed and controlled in a centralized manner in real time, abnormity can be found in time, and air pressure parameters can be quickly adjusted.