33results about How to "Ensure inflow" patented technology

The invention provides a regulating storage tank inflow control device for rainwater collection and waterlogging prevention. The device comprises a case, and a dam which crosses the internal portion of the case, a water inlet pipe, a water outlet pipe, and at least one collection pipe which are arranged on the case. The internal space of the case is divided into a buffer room and a collection room by the dam. A collection opening communicated with the buffer room and the collection room is formed in the dam. Moreover, a switch device arranged on the collection opening controls the collection opening to be opened or closed. The water inlet pipe makes the buffer room and an external water inlet pipeline communicated, the water outlet pipe makes the buffer room and the external water outlet pipeline communicated, and the collection pipe makes the collection room and the regulating storage tank communicated. The regulating storage tank inflow control device for the rainwater collection and the waterlogging prevention is simple in structure and can further be suitable for existing various types of regulating storage tanks, can not only collect clean rainwater when rainstorm warning is not received, but also effectively prevent waterlogging when the rainstorm warning is received.

The invention discloses a kitchen air conditioner. The kitchen air conditioner comprises a shell, a compressor, an evaporator, a condenser, an exhaust pipe, a four-way electromagnetic valve, a throttling component, an air return pipe, an air feeding fan, an exhausting fan and an electric control box, wherein the electric control box and the evaporator are fixed in a front space and a rear space of a left cavity of the shell correspondingly; the compressor and the condenser are fixed in a front space and a rear space of a right cavity of the shell correspondingly; the air feeding fan is fixed on a motor installing plate in the left cavity of the shell, the air inlet end of the air feeding fan faces the evaporator, and the air outlet end of the air feeding fan communicates with an air outlet in the left side surface of the shell; and the exhausting fan is fixed on a motor installing plate inside the right cavity of the shell, the air inlet end of the exhausting fan faces the condenser, and the air outlet end of the exhausting fan communicates with an air outlet in the right side surface of the shell. The kitchen air conditioner is compact in structure and small in occupied space, the air in a kitchen does not enter the air conditioner, kitchen fumes can be effectively prevented from entering the air conditioner, the service life is long, and the cost is low.

A cam follower for a rocker arm is provided with a circular cylindrical outer ring (11) having an outer peripheral surface making contact with a cam, a support shaft (6) for supporting the outer ring (11), rollers (12) arranged in an annular space between the support shaft (6) and the outer ring (11), and side plates (16) formed as circular ring-shaped discs, allowing the support shaft (6) to penetrate therethrough, facing end surfaces (15) of the rollers (12), and having an outer diameter (Ds) less than the inner diameter (Dr) of the outer ring (11). The side plates (16) are located at opposite ends of each of the rollers (12) and satisfy the relationship of Lr<Lk+2t, where Lk is the length of each of the rollers (12) in the direction of the axis thereof, Lr is the length of the outer ring (11) in the direction of the axis thereof, and t is the thickness of each of the side plates (16).

The invention discloses a visual coal bed gas dissipation simulating device and a using method thereof. The visual coal bed gas dissipation simulating device comprises a coal bed gas reservoir simulating device, a coal bed gas source simulating device and a shaft simulating device. The coal bed gas reservoir simulating device comprises a transparent cuboid glass box. A fine sand saturated water layer, an intermediate sand saturated water layer, a fine sand unsaturated water layer and a rubber baffle layer are arranged in the glass box sequentially from bottom to top. The coal bed gas source simulating device comprises two air cylinders. The shaft simulating device comprises a water suction pump, a water meter and a gas meter. The visual coal bed gas dissipation simulating device can simulate different types of reservoirs under a coal bed gas mining site as well as simulating the conditions of fluid contained in the reservoirs, can control the reservoir pressures to form pressure differences and release gas so as to simulate the coal bed gas desorbing process, and can also observe the dissipation process of coal bed gas and meter and consider the coal bed gas recovery rate in the dissipation process automatically in real time.

The invention relates to a steel rail thermite welding gating system. The system comprises a sand mold, a crucible body arranged above the sand mold, a crucible cover matched with the crucible body, a shunting plug arranged inside the sand mold, and a base plate arranged at the bottom of the sand mold. According to the system, a reaction crucible and a pouring gate system are both designed to be of a liquid deslagging structure, and the purity of molten steel in a purifying cavity is fully considered. The crucible top cover of the system is in a pneumatic layout mode, reaction high-temperature gas can be dredged and high-temperature liquid-solid splash can be blocked. Two risers at the bottom of the sand mold in the system communicate with each other, and thus the casting feeding capacity is enhanced.

The invention discloses an internal component for a fractionating tower, and belongs to the field of petroleum equipment. The tower internal component comprises a fluid distribution pipe, fluid distribution grooves and a baffle mechanism which are sequentially distributed at intervals from top to bottom; the baffle mechanism comprises at least three layers which are arranged at intervals from top to bottom, adjacent upper and lower layers of baffles are arranged in a staggered mode, each layer of baffles comprises a plurality of baffles arranged at intervals, and the distance between every two adjacent baffles in the same layer of baffles is smaller than the width of the baffles; the fluid distribution pipe is used for distributing fluid into the fluid distribution groove; the fluid distribution grooves are used for distributing fluid to the topmost baffle of the baffle mechanism, the multiple fluid distribution grooves are arranged at intervals, and a balance groove is formed between every two adjacent fluid distribution grooves and used for enabling the liquid levels of the multiple fluid distribution grooves to be consistent. The tower internal component can obviously increase the gas-liquid contact area, is beneficial to enhancing the heat and mass transfer effect, prevents oil gas from coking and blocking, reduces the gas resistance drop, and obviously improves the washing effect of catalyst powder.

The invention discloses an electric vehicle, a power battery charging control method, a power battery temperature maintaining control method and a power battery management system. It can be ensured that a power battery works safely under the condition that the environment temperature is extremely low or extremely high. The power battery charging control method comprises the following steps that the power battery is electrically separated from a charging loop under the condition that the temperature of the power battery is not within a temperature range allowing charging; after the power battery is electrically separated from the charging loop, the electricity of a charging pile is used for providing constant direct-current high-voltage electricity required by work for a battery thermal management system; real-time temperature information of the power battery is received, and the battery thermal management system is controlled to adjust the temperature of the power battery based on thereal-time temperature information; and the power battery is connected into the charging loop under the condition that the temperature of the power battery is within the temperature range allowing charging.

The invention relates to an efficient combustor flame stabilizing structure which comprises a fire hole plate. A plurality of main fire holes are formed in the fire hole plate, the main fire holes are long-strip-shaped holes and are arranged in parallel at intervals, flame stabilizing holes are formed in the two sides of the main fire holes, the flame stabilizing holes are long-strip-shaped holes parallel to the main fire holes, and the opening plane of the fire hole plate is perpendicular to the opening planes of the main fire holes. According to the efficient combustor flame stabilizing structure, the flame stabilizing holes are formed in the length direction of the main fire holes, the roots of the main fire holes are directly heated, the flame propagation speed of the main fire holes is increased, combustion of air-fuel gas mixed gas is achieved closed to the fire opening planes, and stable combustion of flames is achieved. According to a flame stabilizing method of the flame stabilizing holes, the flame stabilizing holes and the main fire holes are perpendicularly crossed for flame stabilizing, and the flame stabilizing effect is uniform and efficient.

The invention provides a range hood. The range hood comprises a smoke deflector, a lower panel, plunger structures, a matching structure and a reset structure, wherein the smoke deflector is providedwith first oil grooves and oil guide structures, and oil stain is suitable for flowing into the oil guide structures along the first oil grooves; the lower panel is provided with a second oil groove and an oil collecting structure communicating with the second oil groove; each plunger structure is movably arranged in the corresponding oil guide structure and is provided with a blocking position for blocking the oil guide structure and a communicating position for communicating the oil guide structure with the second oil groove; the matching structure is arranged on the lower panel and drives the plunger structures to move to the conduction positions when the smoke deflector is closed; and the reset structure is used for driving the plunger structures to reset to the blocking positions whenthe smoke deflector is opened. The range hood is simple in structure, when the smoke deflector is opened, the plunger structures automatically move to the blocking positions, and when the smoke deflector is closed, the plunger structures automatically move to the conduction positions, no external force is needed, and the reliability is high.

Method of lubricating a bearing assembly and preventing the ingress of contaminants wherein gas is supplied and grease is supplied to the bearing assembly and supplied grease and gas are transported through and discharged from the bearing assembly. The bearing assembly supports a roll neck and comprises a gas supply line (8) and a grease supply line (9) as well as a sealing arrangement (5, 7). The grease and gas are discharged through discharge holes (11).

The invention discloses planting method of bananas and water chestnuts. Equipment used in the planting method comprises first planting areas, second planting areas, transmission devices, nutrient storage devices, water channels, banana trees and lawn planting areas. The first planting areas and the second planting areas are alternately arranged, and the water channels are arranged on two sides ofthe first planting areas and the second planting areas; each nutrient storage device is arranged at the upper end of one corresponding first planting area and the nutrient storage devices are linearlyarranged; each banana tree is arranged on one side of one corresponding nutrient storage device, and each lawn planting area is arranged at the upper end of one corresponding first planting area; thesecond planting areas are deeper than the first planting areas; the water channels are deeper than the second planting areas; and each transmission device is arranged in one corresponding first planting area and is connected with one corresponding water channel. The invention provides the planting method of bananas and water chestnuts, planting benefits can be effectively increased, and growth and development of the bananas are promoted. A plurality of planting fields are combined with cultivation, so that the soil utilization rate is increased, and economic benefits are increased.

The invention provides a face cleaning and beautifying instrument. The face cleaning and beautifying instrument comprises a suction nozzle assembly, a pump device, a control module, a liquid storage cavity and a waste liquid cavity; wherein a liquid locking groove is formed in a suction nozzle end of the suction nozzle assembly, and a liquid supply nozzle and a liquid suction nozzle are arranged in the liquid locking groove; the pump device is controlled by the control module and used for conveying liquid in the liquid storage cavity to the liquid supply nozzle and conveying liquid flowing into the liquid locking groove from the liquid supply nozzle into the waste liquid cavity through the liquid suction nozzle; a heating device is arranged between the pump device and the liquid supply nozzle, and working state of the heating device is controlled by the control module to heat liquid conveyed to the liquid supply nozzle. The face cleaning and beautifying instrument is provided with theheating device, so that face cleaning liquid can be heated and then sprayed out, and cleaning effect of the face cleaning and beautifying instrument is improved.

The invention discloses a VCM sensor provided with a lightweight base and used for preventing a foreign matter from flowing in equipment. The VCM sensor comprises a base unit, a driving part, a fixedpart and a first elastic structure, wherein the top end of the base unit is connected with the bottom end of the driving part; the top end of the driving part is connected with the bottom end of the first elastic structure; and the top end of the first elastic structure is connected with the fixed part. The VCM sensor is simple in structure and reasonable in design, and can effectively prevent theforeign matter from entering the equipment to cause equipment damage.

The invention relates to a double-channel switching pipeline type pollutant treatment device. The double-flow-channel switching pipeline type pollutant treatment device comprises a central flow channel and a peripheral flow channel, the central flow channel is located in the center of the pipeline type pollutant treatment device, a valve element used for achieving on-off of the central flow channel is installed in the central flow channel, the peripheral flow channel is nested outside the central flow channel, and the central flow channel is communicated with the peripheral flow channel. A filter material is arranged in the peripheral flow channel, and the central flow channel and the peripheral flow channel are separated by a cylindrical grid plate. According to the technical scheme, themethod has the beneficial technical effect that the low flow resistance characteristic and pollutant control under different upstream pollution states are both considered.