12results about How to "Reduce gas flow" patented technology

The invention relates to the technical field of oil displacement, in particular to an oil field oxygen reduction air and foam hybrid displacement injection and extraction method and system. Oxygen reduction air and foam are sucked into a negative pressure ejector through the negative pressure ejector; the mixing ratio of the final oxygen-reduced air to the foam is adjusted through a bypass pipeline and a control pipeline; if the gas flow is insufficient, the gas flow of the bypass pipeline is increased; if the foam flow is insufficient, the flow of the bypass pipeline is reduced, the gas flow of the control pipeline is increased to increase the pressure of the ground foam input pipeline, and then the foam flow is increased; and finally, a mixed medium composed of the oxygen-reduced air reaching the preset injection value and the foam is injected into an external injection well for oil displacement, and meanwhile, different technologies are adopted for gathering and transportation according to different gas-liquid ratios of gas-liquid mixtures produced by oil wells of the external injection well.

The utility model provides an adjusting device for a continuous casting tundish nozzle baking furnace. The adjusting device comprises a fuel gas pipeline, an oxygen pipeline and an air pipeline. The oxygen pipeline and the air pipeline intersect to form an input pipeline, the input pipeline comprises at least two first branch pipelines, the gas pipeline comprises at least two second branch pipelines, each first branch pipeline intersects with one second branch pipeline to form at least two mixing pipelines, and the mixing pipelines are communicated with the baking furnace and used for providing combustion energy for baking. At least one mixing pipeline is provided with a collecting tank, and the collecting tank can store flowing gas so that the flow in other mixing pipelines can be reduced. According to the utility model, the plurality of mixing pipelines are communicated with the baking furnace, so that materials in the baking furnace can be uniformly heated, the heating temperature of the materials can be automatically adjusted, and the required temperatures of the materials in different time periods are different to meet the baking requirements. And the effect of rapidly reducing the gas flow is achieved, and it is guaranteed that materials in the baking furnace are heated more evenly.

The application discloses a surface throttling type frictionless balance cylinder and a working method, which comprises a front end cover, a cylinder body, a piston rod, a piston and a rear end cover; two circumferential grooves are formed on the outer surface of the piston, a circumferential groove adjacent to the front end cover is a gas supply groove, a circumferential groove adjacent to the rear end cover is a gas discharge groove, a gas discharge hole communicating with the inner cavity of the cylinder body is formed in the gas discharge groove, an axial gas supply channel is arranged on the end surface of the piston adjacent to the rear end cover, the gas discharge hole does not communicate with the gas supply channel, a gas supply hole communicating with the gas supply channel is formed in the gas supply groove, and three circumferential bosses are arranged on the outer surface of the piston so that gas enters the gap between the piston and the cylinder body to form a pressure gas film through surface throttling. The application has the advantages of small occupied space, simple machining and assembly, high precision and difficulty in damage, and can be reliably applied to the stable vertical movement of a vertical shaft of an ultra-precision machine tool.

The invention belongs to the technical field of pneumatic conveying equipment, and particularly relates to a secondary zinc oxide production anti-overflow conveying device which comprises a gas conveying channel, one end of the gas conveying channel fixedly communicates with a conveying pipeline, and the end, away from the gas conveying channel, of the conveying pipeline fixedly communicates with a detection channel. The end, away from the conveying pipeline, of the detection channel fixedly communicates with a discharging pipeline. The turbulent flow assembly is used for avoiding the caking phenomenon in the secondary zinc chloride conveying process, the turbulent flow assembly comprises a rotating rod rotationally connected to the side wall of the gas conveying channel in a penetrating mode, and spiral turbulent flow blades are arranged on the peripheral side wall of the rotating rod; the outer wall of the gas transmission channel is fixedly connected with a driving part used for driving the rotating rod and the spiral turbulent flow blades to rotate. By arranging the turbulent flow assembly, when zinc hypochloride is conveyed, the spiral turbulent flow blade can be driven to rotate, gas is discharged to the conveying pipeline through the turbulent flow holes, and the zinc hypochloride is subjected to turbulent flow through impact of gas flow on the zinc hypochloride, so that caking is prevented.

The invention discloses a preparation technology of a polymer-coated guide wire and the guide wire, and belongs to the field of medical instrument production. The preparation process of the polymer coated guide wire comprises the following steps: cleaning the surface of a core wire; performing sand blasting treatment on the surface of the core wire to form a sand surface; performing plasma surface treatment on the sand surface of the core wire to finish pretreatment of the core wire; and melting a polymer to form a polymer melt, coating the surface of the pretreated core wire with the polymer melt, and cooling to form a polymer coating layer, thereby obtaining the guide wire. The core wire has the effect of enhancing the binding force between the core wire and the coating layer.

The utility model relates to the technical field of automobile air conditioner, disclose a kind of air conditioner box mixed air ratio optimization temperature damper and air conditioner box based on door stop cooperation, and air conditioner box mixed air ratio optimization temperature damper based on door stop cooperation includes door stop and temperature damper. Door stop includes first door stop, second door stop and third door stop, and cold channel is between first door stop and third door stop, and hot channel is between third door stop and second door stop. Temperature damper includes damper body and baffle, and baffle is connected to one end of damper body in the moving direction of temperature damper and close to second door stop, and the length of baffle in the direction perpendicular to the moving direction of temperature damper is consistent with the length of damper body. When temperature damper leaves full cold position, baffle is used to reduce the gap between temperature damper and hot channel inner wall. Temperature damper moves to full hot position, and the projection of third door stop in the thickness direction of temperature damper covers baffle.

A motor device (60) includes a motor housing (70), a rear frame (370), and a motor seal portion (402). The motor seal portion (402) is sandwiched between the motor housing (70) and the rear frame (370), and closes a gap between the motor housing (70) and the rear frame (370). The motor seal portion (402) is held in a state of being sandwiched between a motor seal holding portion (78) and a rear frame holding portion (376). The motor seal holding portion (78) is included in the motor housing (70). The rear frame holding portion (376) is provided in the rear frame (370). A motor outer peripheral surface (70a) and a rear frame outer peripheral surface (370a) are arranged continuously in an axial direction (AD). The motor outer peripheral surface (70a) is provided on a radially outer side of the motor seal holding portion (78).

The invention provides a storage and transportation box and a storage method for Tetra Pak brick packaging boxes, and relates to the technical field of packaging box transportation and storage. An inner cavity area of a transport box is used for containing stacked tiled packing boxes, a first clamping assembly is arranged at the top of the transport box, and a second clamping assembly is arranged at the bottom of the transport box. A first pneumatic assembly is installed above the transport case, and a second pneumatic assembly is installed below the transport case. The first clamping assembly comprises a first air cavity communicating with the first pneumatic assembly, a first displacement plate and a first pressure sensing module. The second clamping assembly comprises a second air cavity communicating with the second pneumatic assembly, a second displacement plate and a second pressure sensing module. The first pneumatic assembly and the second pneumatic assembly are provided with air inlet pipes and air outlet pipes, the air inlet pipes are provided with air inlet valves, and the air outlet pipes are provided with air outlet valves. The packaging box can be effectively prevented from being punctured or polluted due to excessive extrusion in the transportation process, the internal sterile environment is ensured, and the transportation quality of large-batch packaging boxes is guaranteed.

The invention relates to the technical field of anesthesia, in particular to a concentration adjusting type anesthesia device. An oxygen supply device and an anesthetic gas supply device are arranged in the anesthesia machine, a supporting column is fixedly connected to the anesthesia machine, a supporting block is fixedly connected to the outer wall of the supporting column, a supporting ring is fixedly connected to the outer wall of the supporting block, an adjusting assembly is fixedly connected to the top of the supporting column, and a mixing assembly is fixedly connected to the outer wall of one end of the adjusting assembly. The rotating frequency of the adjusting assembly is adjusted according to the breathing frequencies of different patients in the operation process, so that the adjusting assembly adjusts the flow of anesthetic gas, meanwhile, the anesthetic gas is conveyed into the mixing assembly, oxygen and the anesthetic gas are mixed through the mixing assembly, and the anesthetic gas with different concentrations is obtained through adjustment. The oxygen is conveyed through continuous rotation of the mixing assembly, and meanwhile the anesthetic gas and the oxygen can be heated in the rotation process of the mixing assembly.

This invention relates to the field of oil and gas extraction technology, and in particular to an anti-runaway screw drill bit to solve the problems of motor damage, reduced lifespan, and reduced drilling efficiency during runaway. The invention provides an anti-runaway screw drill bit, including a drill pipe, an upper connector, an anti-drop section, and a motor, and also includes an anti-runaway mechanism. The drill pipe is disposed on the upper part of the upper connector; the anti-drop section is disposed on the lower part of the upper connector; the anti-runaway mechanism is inserted into the anti-drop section; the motor is disposed below the anti-runaway mechanism; the drill pipe, upper connector, anti-drop section, and motor are sequentially connected to form a gas chamber. In the event of a runaway, the anti-runaway mechanism 500 can promptly divert the high-pressure gas in the gas chamber 001, reducing the gas flow rate used to drive the motor 400, thereby reducing the motor speed, reducing motor wear, and ultimately improving drilling efficiency.

The utility model relates to a pole plate pore channel supporting device which comprises a pole plate, a plurality of pore channels are evenly formed in the circumferential direction of the pole plate, a gasket is attached to one side of the pole plate, through holes are formed in the positions, corresponding to the pore channels of the pole plate, of the gasket and communicated with the pore channels, and supporting rings are inserted into the pore channels. One end of each supporting ring is inserted into the corresponding hole channel, and the other end of each supporting ring is inserted into the corresponding through hole. The method has the effect of reducing the probability that the gasket blocks the hole channel.

The invention relates to the technical field of heat pump systems, in particular to an independent mechanical operation experiment system and process flow, the system comprises a tower top condensation evaporator, the tower top condensation evaporator is connected with a compressor unit through a pipeline I, the compressor unit is connected with a tower kettle reboiler through a pipeline, and the tower kettle reboiler is connected with a tower kettle. The tower kettle reboiler is connected with a working medium liquid reservoir through a pipeline; the working medium liquid reservoir is connected with the pipeline I through a pipeline II; a hot gas bypass valve is arranged on the pipeline II; the working medium liquid reservoir is connected with a working medium cooler through a third pipeline, the working medium cooler is connected with the tower top condensation evaporator through a fourth pipeline, a cooler valve and a main throttling valve are arranged on the fourth pipeline, and the cooler valve is located on the side, away from the tower top condensation evaporator, of the main throttling valve. The third pipeline and the fourth pipeline are connected through a fifth pipeline, the fifth pipeline is located between the cooler valve and the main throttling valve, and a cooler bypass valve is arranged on the fifth pipeline. According to the invention, a mechanical operation experiment before formal driving can be realized by adding several small-caliber pipelines and valves.