55results about How to "No backflow phenomenon" patented technology

The invention discloses an updated heavy oil desalting and dewatering device. The device is composed of an electrical desalting tank, a transformer and a high-voltage electronic joint device, an oil inlet main pipe, oil inlet branched pipes and flow regulating valves, wherein an upper electric field in the electrical desalting tank consists of at least one electric field unit and adopts the multiple electric field distribution technology of single power supply, each electric field unit consists of a drip tray, a live electrode, a grounding electrode, an oil inlet nozzle, a backwashing device and a down pipe; and a fast dewatering and draining device consists of a V-shaped drip tray, a backwashing device and a down pipe, a backwashing nozzle and the bottom surface of the drip tray forms an inclination, the top of the down pipe is connected with the bottom of the drip tray, and the other end is inserted in the water layer of the electrical desalting tank. The field intensity of the upper electric field of the device is optimized, fast dewatering and draining can be ensured, the desalting efficiency is increased; and the updated heavy oil desalting and dewatering device is suitable for the deep desalting and dewatering treatment of crude oil, particularly heavy crude oil, fuel oil and other heavy oil products.

The invention relates to a water-saving toilet stool, in particular to a water-saving toilet stool using micro-quantity of water, which is suitable for hotels, households, enterprises and public institutions, public toilets and the like. The water-saving toilet stool comprises a toilet stool, a water tank, a water pump, a booster jar, a foaming agent storage tank, a foam generator and a miniature air pump, wherein a sanita is arranged in the middle of the toilet stool; a foam input joint is arranged on the upper part of the sanita; a flushing channel is formed inside the upper part of the sanita; a movable cover plate is arranged at the outlet of the sanita; a pedestal pan cover is arranged on the upper part of the sanita; the water tank, the foam generator, the foaming agent storage tank and the miniature air pump are arranged on the upper part in the rear tank of a pedestal pan; the water pump and the water booster jar are arranged on the lower part of a toilet stool shell; the water tank is provided with a water tank body; a float valve is arranged inside the water tank body; a water inlet is formed on the water tank body and is communicated with tap water; a first water outlet is connected with the water pump; a second water outlet is connected with the foam generator through a second check valve and supplies water to the foam generator; and the second check valve prevents liquid in the foam generator from flowing into the water tank.

The invention discloses a novel bleeding-stopping device for the obstetrics and gynecology department. The novel bleeding-stopping device comprises an air suction hole, wherein the right side face ofthe air suction hole communicates with the left side face of a charging air bag, the right side face of the charging air bag communicates with the left side face of a connecting base, the right side face of the connecting base communicates with the left end of an air inflation catheter, and a deflation valve is arranged on the upper surface of the air inflation catheter. For the novel bleeding-stopping device for the obstetrics and gynecology department, due to the arrangement of a pull handle, springs, a mandrel, a piston, a needle cylinder, a needle file, an infusion tube, an infusion valveand an administration layer, the pull handle is enabled to drive the mandrel to move downwards, so that the mandrel drives the piston to move downwards, the piston squeezes a medicinal agent in the needle cylinder when moving downwards in the needle cylinder, thus the medicinal agent can enter the administration layer through the infusion tube, the medicinal agent passes through a second through hole to enter a bleeding-stopping sponge layer, therefore, medicine treatment is carried out on a pregnant woman, in addition, the bleeding stopping process is accelerated, after injection of the medicinal agent, the infusion valve is closed, and thus the medicinal agent can not generate the backflow phenomenon.

The invention provides a variable-displacement rotary swash plate compressor. The variable-displacement rotary swash plate compressor is characterized in that a cylinder block is connected with a rear cover through a valve plate assembly, the middle of the rear cover is provided with a suction cavity and an exhaust cavity, a circular partition rib is arranged between the suction cavity and the exhaust cavity, a silencing cavity is arranged in the middle of the exhaust cavity, and a check valve is arranged between the circular partition rib and the silencing cavity; the bottom end face of a suction port of the cylinder block is an inclined drag reduction face. Due to the fact that the silencing cavity and the check valve are arranged in the exhaust cavity of the rear cover, high-pressure air flows passing through the inner side and the outer side of the rear cover can flow more stably, back flowing is avoided, and air flow noise is weakened; owing to the inclined drag reduction face arranged at the bottom end of the suction port of the cylinder block, air flows in different directions tend to be uniform after air enters the suction port and flows through the drag reduction face, the air flows are orientated, resistances of the air flows are reduced, and accordingly power consumption is reduced, and energy efficiency of the compressor is improved.

The invention relates to a non-breaking corn hoister. The non-breaking corn hoister is characterized by being composed of a machine shell (1), a feeding hopper (6), a bottom wheel set (2), a head wheel set (10), tensioning wheel sets (5 and 7), a winnowing pan chain (8), a transmission device (11) and the other components. The non-breaking corn hoister is a novel hoister adopting the low-rotating-speed and dump type discharging technology, and has the advantages of being free of leakage, back flowing and breaking.

The invention discloses a front-mounted blowing structure bunching component. The front-mounted blowing structure bunching component comprises a bunching body, a strip guide tube, a strip guide tube joint and a lower supporting plate, the bunching body is a flat bulk member, a conical groove with a rightward large end is arranged on the lower right portion of the bunching body which is longitudinally and flatly arranged, a right end of the strip guide tube is connected with a straight hole of the bunching body in a sealing mode, a tube opening at a left end of the strip guide tube is leftwards and downwards bent, the strip guide tube joint is sleeved on the tube opening at the left end of the strip guide tube, and an air inlet hole is mounted on the upper end face of the bunching body. The front-mounted blowing structure bunching component is characterized in that an inclined hole which is communicated with an inner hole of the strip guide tube joint is arranged on the right end face of the strip guide tube joint, a blowing tube is mounted, a right end of the blowing tube is connected with the air inlet hole on the bunching body in the sealing mode, and a left end of the blowing tube is connected with the inclined hole on the right end face of the strip guide tube joint in the sealing mode. According to the front-mounted blowing structure bunching component, a blowing structure is front-mounted, large negative pressure is generated in the inner hole of the strip guide tube to form a large attraction force, hitching and blocking phenomena at a hole opening at the right end of the straight hole of the bunching body connected with the strip guide tube can be prevented, cotton-fleece retracting and bunching time is short, and cotton-fleece retracting and bunching efficiencies are high.

The patent of the present invention provides a variable displacement swash plate compressor, which includes a cylinder body connected with a back cover through a valve plate assembly, and a suction chamber and an exhaust chamber are arranged in the middle of the back cover. There is a circular partition rib in the middle of the air chamber and the exhaust chamber, a sound-absorbing cavity is provided in the middle of the exhaust chamber, and a one-way valve is provided between the circular partition rib and the sound-absorbing chamber; the suction of the cylinder body The end surface of the bottom of the mouth is a drag reducing surface arranged obliquely. A muffler cavity and a one-way valve are set in the exhaust chamber of the rear cover, so that when the high-pressure air flows through the inner and outer sides of the rear cover, the flow of the gas is more stable, and the backflow phenomenon will not be caused, reducing the noise of the air flow; The bottom end surface of the suction port is provided with an inclined drag-reducing surface. When the gas enters the suction port, it passes through the drag-reducing surface to make the airflow in different directions tend to be consistent, guide the airflow in a direction, reduce the resistance of the airflow, and thereby reduce the Reduce power consumption and improve the energy efficiency of the compressor.

The invention discloses a methanol-high-pressure-oxygen compound two-stroke engine. The methanol-high-pressure-oxygen compound two-stroke engine is composed of one or more air cylinder groups, each air cylinder group comprises a main air cylinder and a corresponding auxiliary air cylinder, and the main air cylinders are provided with starting fuel nozzles, methanol nozzles, oxygen nozzles and mainair cylinder exhaust valves and are not provided with air inlet valves; and connection channels are arranged between main air cylinder exhaust ports and the auxiliary air cylinders, the connection channels are provided with one-way valves at auxiliary air cylinder inlets, air in the main air cylinders only flows into the auxiliary air cylinders through the one-way valves, the auxiliary air cylinders are not provided with fuel nozzles and are provided with auxiliary air cylinder air inlet valves and auxiliary air cylinder exhaust valves, and the auxiliary air cylinder air inlet valves communicate with an engine air inlet pipe. Methanol is injected into the main air cylinders, the amount of oxygen injected in the main air cylinders is controlled, the degree of fuel combustion is controlled,high-temperature active air which is not completely burned in the main air cylinders is introduced into the auxiliary air cylinders to continue combustion, the cylinder-dividing circulation is achieved, the emission of harmful air is reduced, and the full combustion of fuel is achieved.

The invention relates to a water-saving toilet stool, in particular to a water-saving toilet stool using micro-quantity of water, which is suitable for hotels, households, enterprises and public institutions, public toilets and the like. The water-saving toilet stool comprises a toilet stool, a water tank, a water pump, a booster jar, a foaming agent storage tank, a foam generator and a miniature air pump, wherein a sanita is arranged in the middle of the toilet stool; a foam input joint is arranged on the upper part of the sanita; a flushing channel is formed inside the upper part of the sanita; a movable cover plate is arranged at the outlet of the sanita; a pedestal pan cover is arranged on the upper part of the sanita; the water tank, the foam generator, the foaming agent storage tank and the miniature air pump are arranged on the upper part in the rear tank of a pedestal pan; the water pump and the water booster jar are arranged on the lower part of a toilet stool shell; the water tank is provided with a water tank body; a float valve is arranged inside the water tank body; a water inlet is formed on the water tank body and is communicated with tap water; a first water outlet is connected with the water pump; a second water outlet is connected with the foam generator through a second check valve and supplies water to the foam generator; and the second check valve prevents liquid in the foam generator from flowing into the water tank.

The invention discloses an analyzing and metering device and a liquid analysis system, relating to the technical field of fluid analysis and aiming to solve the problem of inaccuracy in liquid metering and achieve accuracy in metering of liquids in different volumes, thus improving the measurement accuracy of the liquid analysis system. The analyzing and metering device mainly comprises a first control valve, a reaction analysis device, a metering tube and a fluid driver, wherein the first control valve comprises a public port and a plurality of distribution ports which can be alternatively communicated with the public port; the plurality of distribution ports include at least one blind hole port and an air port communicated with the atmosphere; the reaction analysis device is provided with a first channel opening and a second channel opening; the metering tube is connected between the public port and the first channel opening; a first connecting tube orifice is formed in the wall of the metering tube and is connected with a first waste liquid tube by a second control valve; the inner diameter of the metering tube is less than 4mm; the fluid driver is connected with the reaction analysis device. The analyzing and metering device is mainly used in the technical field of chemical analysis instruments.

The invention discloses a disposal medical negative pressure gas joint backflow prevention device which comprises a negative pressure gas joint (4), a liquid collecting bottle (9) and a backflow prevention device (6), wherein the outlet end and the inlet end of the backflow prevention device are respectively connected and conducted with the negative pressure gas joint and the liquid collecting bottle; the backflow prevention device further comprises a hollow integrated outer casing (1) with an inlet joint integrated structure, an outlet joint (3) with an opened inlet end part inner cavity concave platform structure and a sealing filter element (2) for embedding and connecting the inlet end part notch of the outlet joint and sealing pores; and the sealing filter element is a honeycomb pinhole structure with a built-in center concave hole structure, and the shape of the center concave hole is matched with that of the filter element body. The disposal medical negative pressure gas joint backflow prevention device disclosed by the invention has the characteristics of simple structure, convenience for assembly, capability of quickly sealing and blocking and the like, and can satisfy the requirements of backflow prevention control of the negative pressure gas joint.

The invention discloses a water channel device with an ozone disinfection function. The water channel device comprises at least one water channel body (1), a downcomer assembly (14) and an ozone generator (13), a downcomer cover (5) is arranged on each water channel body (1), a cover plate (9) is also arranged on the water channel body (1) communicated with the ozone generator (13), one end of the cover plate (9) is locked together with or released from the other side of the water channel body (1) through a locking device, and a stop valve (15) is arranged on one end, close to a sewage pipe (16), of the downcomer assembly (14). After the structure is adopted, on one hand, ozone in the water channel is isolated from the intersection with air outside the water channel so as to avoid damage to a human body; on the other hand, under the matching use of the stop valve, the ozone concentration in the downcomer assembly can be guaranteed and resources can be greatly saved.

The invention relates to the technical field of copper rod machining and aims to provide a copper rod machining line and a copper rod machining process which are convenient for feeding copper blocks, free of copper fluid backflow, good in compactness of a produced copper rod, lower in surface defection ratio, low in energy consumption and packing cost and not prone to produce oxidation on the surface of the copper rod. The copper rod machining line comprises a copper melting furnace and a continuous casting machine. The copper melting furnace comprises a vertical combustion furnace, the upper end of the combustion furnace is provided with a fuel inlet and a copper block feeding port, and the lower end of the combustion furnace is provided with a copper liquid outlet. A casting outlet and a cavity of the continuous casting machine are rectangular, a heat preserving furnace is arranged between the copper liquid outlet and the inlet of the continuous casting machine, and an edge mark shearing machine, an edge milling machine and a rolling machine are docked with a casting outlet of the continuous casting machine in sequence. By the application of the copper rod machining line and the copper rod machining process, the problems of inconvenience in feeding of the copper block and unsmooth in melting, high energy consumption and packing cost, proneness to oxidation on the surface of the copper surface, high surface defection ratio and poor compactness of the copper rod existing in an existing copper rod machining method are solved.

The invention belongs to a production method of a fireproofing flue of an environmental-friendly building and an exhaust duct in a washroom. The method comprises the steps of bittern making, mixed pulping, forming, maintaining and the like of raw materials comprising magnesium oxide, magnesium chloride, fibrous fragments and accessories. The fireproof plate, a kitchen flue and the exhaust duct in the washroom of the environmental-friendly building have the advantages of high mechanical strength, incombustibility, energy conservation and environmental friendliness. Tested by the national quality surveillance examination test center for building material and industrial housing building material, the environmental-friendly building fireproof plate, the kitchen flue and the exhaust duct reaches the quality and technical index stated by the nation in the aspects of mechanical strength, fireproofness, hydrolytic resistance, formaldehyde release limit and the like. The on-site analog experiment is carried out on the kitchen flue and the exhaust duct in the washroom by the national surveillance examination test center for air-conditioning equipment, and flues at 36-story floor height are tested, reach the quality and technical index stated by the nation, and have the performances of environmental friendliness, fireproofness, corrosion resistance and the like as compared with the cement chimney, and avoids the backward flow phenomenon in air draft.