118results about How to "Avoid rushing" patented technology

An eavestrough cover comprising a first side structure and a second side structure with a central planar portion intermediate the side structures, the central portion having a plurality of longitudinally extending sections with each being separated from each other by a rollback member, the rollback members extending longitudinally and having one face thereof of a C-shaped configuration, all of the rollbacks facing in the same direction, each of the longitudinally extending sections having a plurality of apertures formed therein. The rollback structure helps prevent overflow of the eavestrough.

The invention discloses a method for preparing nodular cast iron. According to the invention, a cupola melting technology and an appropriate nodulizing process technology are adopted, inoculation is conducted for many times, and the box is opened in appropriate time, and therefore, that the high-quality low-temperature high-toughness nodular cast iron, of which the low-temperature comprehensive performance conforms to the QT400-18AL(-20 DEG C) standard is obtained is ensured. The nodular cast iron contains the following ingredients by weight percent: 3.3-3.6 percent of C, 1.8-2.2 percent of Si, less than 0.20 percent of Mn, 0.040 percent of P and Lt, 0.020 percent of S and Lt, 0.030-0.040 percent of Re and 0.040-0.055 percent of Mg. The nodular cast iron can meet the quality demands of low-temperature high-performance castings of wind power, nuclear power, high-speed rails and the like with higher quality requirements.

The invention discloses a parallel operation axial flow primary fan automatic regulating method and an automatic regulating device. According to the method, a fan current monitoring and comparison module is added on a fan pneumatic blade automatic control module, the current of more than two fans is firstly judged during fan air quantity regulation and control, and the air quantity regulation sequence of a fan is determined according to fan current quantity; the preferential increase of the movable blade opening degree of the fan with low current is used as an air quantity increase regulation condition; the preferential decrease of the movable blade opening degree of the fan with high current is used as an air quantity decrease regulation condition. The optimized control strategy is adopted, the headwind and stall problem of the primary fan is effectively avoided, and the automatic regulation quality of an axial flow primary fan is greatly improved, so guarantee is provided for boiler burning stability.

The invention provides a multi-direction flow gravitational settling apparatus for a recirculating aquaculture system. The cavity of a vertically arranged barrel-shaped water passing container is divided into an upper straight barrel-shaped settling chamber and a lower inverted cone-shaped sewage collecting chamber by a separator plate horizontally arranged in the water passing container; the upper end of the water passing container is an open end, and the end part of the upper end is embedded into a water collecting tank with an upwardly opened opening; the lower end of a 7-shaped water inlet pipe extends downwardly to penetrate the bottom of the water collecting tank, and the upper end of the 7-shaped water inlet pipe extends into the upper part of the settling chamber to communicate with the upper end of a vertical water distribution pipe; the port of the lower end of the water distribution pipe extends into a central through hole of the porous separator plate; an inclined tube filling material is filled in the part of the settling chamber below a water outlet end of the water inlet pipe; a sewage outlet is arranged at a cone bottom of the sewage collecting chamber; and the sewage outlet is movably covered with a water distributing cone, and the conical tip of the water distributing cone just faces the port of the lower end of the water distributing pipe. The apparatus provided by the invention has a simple structure, a compact shape, great water treating capacity, short hydraulic retention time and a substantial treating effect, is convenient to apply and can be popularized as equipment.

The present invention relates to a device for attaching a turbomachine stator vane in an annular casing (20) of the turbomachine, the vane comprising a tip formed of a platform (14) with two edges (141, 142), one of them forming an upstream edge (141) and the other forming a downstream edge (142), an airfoil (11) and a root (13), the annular casing (20) comprising a circumferential groove (23) formed in its interior wall with an upstream flank (21) and a downstream flank (22), the vane being held by engagement of the platform (14) in the groove (23), the upstream edge against the upstream flank (21) and the downstream edge (142) against the downstream flank (22) of the groove (23), the downstream flank (22) of the groove (23) being in the form of a slot (22) opening axially in the upstream direction, the downstream edge of the platform (23) being engaged in said downstream flank (22) and a fastening means (40) being attached in order to hold the platform (14) in the groove on the upstream side, wherein the vane comprises a portion of platform (14) between the airfoil (11) and the upstream edge, this portion being pierced with a through-hole (17) designed to accept said fastening means (40).

The invention relates to the technical field of rainwater pretreatment, in particular to a filter frame type rainwater pretreatment device. The device comprises a well body, wherein a water inlet pipe and a water outlet pipe are connected to two side walls of the well body respectively, a cover plate is arranged at the top of the well body, retaining walls and a filter frame are arranged at the bottom of the well body, a semi-closed type filter screen is fixed on the filter frame, the retaining walls are axially vertical to the water inlet pipe, two ends of each retaining wall are connected with the inner wall of the well body, gaps are reserved between the tops of the retaining walls and the top of the well body, the filter screen is erected in the gaps between the top of the retaining walls and the top of the well body through the filter frame, openings are formed in the top of the filter screen and in the end part, facing the water inlet pipe, of the filter screen, and the end parts of the openings of the filter screen are in tight contact with the inner wall of the well body. Rainwater pretreatment is completed in a combination manner of gravity settling and the filter screen, after treatment, floating objects contained in rainwater are blocked and gathered in the filter screen, particulate matters in the rainwater deposite at the bottom of the chamber among the retaining walls after blocked by several retaining walls, and water can be prevented from being polluted.

A two-stroke internal combustion engine having a crankcase provided with a crank chamber, a suction port which opens to the crank chamber, a scavenging passage opening into the crank chamber, and a crankshaft is provided with a flow control surface formed on an inner peripheral wall portion of the crank chamber which is capable of retarding the flow rate of unatomized raw fuel and which extends from the vicinity of the suction port to the vicinity of the scavenging passage. The flow control surface is comprised of a large number of intersecting unit ribs.

The invention relates to a super-high flow return-oil defoamer, in particular relates to a heavy mining dumper, and belongs to the hydraulic field. The defoamer is characterized in that a base is provided with a connecting hole and is fixedly connected with one end of a shell; the other end of the shell is fixedly connected with a bottom plate, and the bottom plate is provided with a hole; and a cross-shaped partition plate is arranged in the shell and is provided with an oil hole. The super-high flow return-oil defoamer is of an integral cylindrical structure, wherein the base is connected with an oil return pipe in an oil tank through an internal 6''NPT (national pipe thread) so as to play a role in connection and ensure the airtightness of the joint; the shell, the bottom plate and the cross-shaped partition plate are provided with oil passing holes, and the flow rate of the hydraulic oil is reduced so as to prevent air bubbles from occurring when hydraulic oil passes through the oil passing holes; and a baffle is arranged at the bottom side of the hydraulic oil tank so as to prevent the high-flow hydraulic oil from washing away the dirt precipitated on the bottom of the oil tank.

Embodiments of the present invention provide a compressor power-off demagnetization protection method, device, household appliance and storage medium, which belong to the technical field of household appliance control. The compressor power-off demagnetization protection method includes: detecting the phase current of the compressor; calculating the variation of the phase current of the compressor within a set time interval according to the detected phase current of the compressor; Comparing the variation of the phase current of the compressor with a set value, determining the operating condition of the compressor according to the comparison result; and controlling the input power of the compressor when it is determined that the compressor is in an abnormal state The pulse width modulation PWM circuit stops working. The power-off demagnetization protection method for the compressor prevents the demagnetization phenomenon of the compressor, reduces the failure rate of equipment, and improves the reliability of equipment operation.

The invention relates to a middle and lower layer water sample sampler which comprises a raising rope, a hollow sampling cylinder and a cylinder bottom. A circular hole is formed in the cylinder bottom, and the position of the center of the circle of the circular hole is the same as that of the center of the circle of the cylinder bottom; a T-shaped blocking part is arranged at the circular hole of the cylinder bottom and comprises a circular block piece and a cylindrical protruding part fixedly arranged on the lower portion of the circular block piece, the diameter of the cross section of the cylindrical protruding part is smaller than that of the circular hole, the diameter of the circular block piece is larger than that of the circular hole, the diameter of the circular block piece is smaller than that of the cylinder bottom, a long-strip-shaped limiting baffle is arranged on the upper portion of the circular block piece and is parallel to the plane where the circular block piece is located, and the two ends of the limiting baffle are fixed on the inner wall of the hollow sampling cylinder. Compared with the prior art, the middle and lower layer water sample sampler has the advantages of being capable of conveniently and rapidly collecting water samples of the middle and lower layer, simple in structure and accurate and reliable in sampled water samples.

The invention belongs to the field of sewage treatment equipment, and particularly relates to a sewage treatment device. The sewage treatment device comprises a filtering pond and an adsorption gasifying pond, wherein the filtering pond is connected with the adsorption gasifying pond through a water outlet pipe; a water pump is arranged on the water outlet pipe; the filtering pond is divided into a grating chamber and a settling chamber by a partition; the grating chamber is arranged above the settling chamber and communicates with the settling chamber through a connecting tube; a water inlet tube is arranged above the grating chamber; a water inlet valve and a water flow meter are arranged on the water inlet tube; one end of the water outlet pipe extends into the settling chamber while the other end of the water outlet pipe extends into the top of the adsorption gasifying pond; the end, which extends to the adsorption gasifying pond, of the water outlet pipe is provided with a spraying rod; and a sprayer is arranged on the spraying rod. After being treated by the sewage treatment device, the sewage can reach the standard of reuse of reclaimed water, and the treatment effect is good.

The invention discloses an anti-permeation portable water baffle capable of achieving automatic supporting for municipal flood prevention. The anti-permeation portable water baffle comprises a guide shovel plate, wherein sealing movable frames are fixedly connected to the left side and the right side, close to the back surface, of the top of the guide shovel plate, an arc-shaped sealing groove isformed in the position, close to the back surface, inside the guide shovel plate, a movable water baffle is rotationally connected to the position, close to the back surface, of the guide shovel plate, a sealing protruding block is fixedly connected to the end, located inside the arc-shaped sealing groove, of the bottom of the movable water baffle, a gravity center stabilizing plate is fixedly connected to the bottom of the back surface of the guide shovel plate, a balance weight guide groove is formed in the position, close to the back surface, of the top of the guide shovel plate, and an active anti-skid mechanism is fixedly connected to the position, close to the middle of the back surface, of the bottom of the guide shovel plate. The invention relates to the technical field of flood prevention. According to the anti-permeation portable water baffle capable of achieving automatic supporting for municipal flood prevention, the sealing performance of the baffle is improved, connectionbetween water baffles is facilitated, and meanwhile, the sealing performance of the connecting positions of the water baffles is improved, carrying is convenient, and mounting is easy.

A traveling control device for a hydraulically-driven vehicle includes: a traveling hydraulic motor driven by oil delivered from a hydraulic pump; a speed-reducing mechanism with an adjustable speed-reduction ratio, that slows down rotation of the hydraulic motor and transmits the slowed rotation to wheels; a pressure oil control device that controls a flow of pressure oil from the hydraulic pumpto the hydraulic motor in correspondence to an extent to which a traveling pedal is operated; a speed-reduction ratio detection device that detects the speed-reduction ratio at the speed-reducing mechanism; and an acceleration limiting device that restricts accelerating operation of the hydraulic motor achieved in response to an operation of the traveling pedal, when an acceleration-limiting condition, that is, the speed-reduction ratio detected by the speed-reduction ratio detection device is equal to or greater than a predetermined value, is met.

The invention relates to the field of environment protection, and particularly discloses a settling tank capable of separating sediments timely for sewage treatment. The settling tank comprises a settling tank shell, a water inlet, first inclined plates, second inclined plates, bottom plates, a lifting plate and a lifting driving device; the lower ends of each first inclined plate and the corresponding second inclined plate are fixedly connected with each other through the corresponding horizontal bottom plate; a sealing cavity is formed above the lifting plate; a plurality of vertical separating sealing plates are fixed to the upper surface of the lifting plate; each separating sealing plate corresponds to the corresponding bottom plate, and each separating sealing plate penetrates through the corresponding bottom plate upwards; the two sides of each sealing plate are sealed with the corresponding bottom plate; a collecting cavity for communicating the left side and the right side isformed in each separating sealing plate. According to the settling tank capable of separating sediments timely for the sewage treatment, solid sediments are collected in the collecting cavities, movedownwards along with the separating sealing plate and are separated from the collecting cavities from the lower parts of the bottom plates through the arranged separating sealing plates and the collecting cavities which are formed in the separating sealing plates, so that settled solid sediments can be separated timely.

An athletic shoe includes an upper section and a sole section. The upper section is attached to the sole section. The upper section includes at least a wearing opening. The sole section includes a bottom portion, a support portion, and a receiving portion. The support portion is arranged between the bottom portion and the receiving portion and extends from a shoe heel portion of the sole section toward a shoe sole portion of the sole section. The receiving portion includes a first trough, a second trough, and a third trough formed therein. The first trough receives therein a first soft pad that corresponds in shape thereto. The second trough receives therein a second soft pad that corresponds in shape thereto. The third trough receives therein a third soft pad that corresponds in shape thereto. As such, the sole section is provided with a plurality of rush stop sites.

The invention relates to a vehicle and a brake torque control method thereof. The method comprises the following steps that: in a vehicle braking process, if the brake pedal opening degree is smallerthan a set brake pedal opening degree threshold value, the current slip rate of a wheel is estimated according to the speed, rolling radius and wheel center speed of a wheel; whether a vehicle turns or not is judged according to a steering wheel angle signal; if turning occurs, a wheel slip rate is controlled within a first slip rate interval; and if not, the wheel slip rate is controlled within asecond slip rate interval. According to the method, braking torque control is started in advance compared with linear driving during turning driving, so that the braking torque control opportunitiesof the vehicle under a turning working condition and a linear working condition are different, the braking stability and smoothness of the vehicle under the turning working condition are improved, andthe applicability of the vehicle is improved.

The invention discloses a clothing treatment device, a control method for the clothing treatment device, and a clothing treatment system. The clothing treatment device comprises a washing container, awater inlet module, a water drainage module, and a control module which is used for receiving a cleaning mode control signal, controlling the water inlet module to be turned on to introduce water into the washing container to reach a predetermined water level, executing a main washing program, and controlling the water drainage module to be turned on to drain the water of the washing container toreach an empty water level after the main washing program, as well as used for controlling the water inlet module to be turned on to introducing water into the washing container to reach a predetermined water level, executing a rinsing program, and controlling the water drainage module to be turned on to drain the water of the washing container to reach the empty water level after the rinsing program. With the adoption of the technical scheme of the invention, one-time water drainage is carried out after the main washing program and the rinsing program separately, dirt which is not drained during the first-time water drainage is drained by virtue of the second-time water drainage, and the left dirt is prevented from being swept to a higher position by water flow and then continuing to beleft in the washing container, so that the cleaning intensity is increased, and the cleaning effect is improved.

The invention discloses a reactive power compensation and filtering integrated device and belongs to a power supply technology field, wherein the device is used for solving a reactive power compensation and harmonic control problem at a power supply end. The reactive power compensation and filtering integrated device comprises an active dynamic filter and a reactive power compensator, wherein the active dynamic filter comprises a harmonic sampling current transformer, a s sampling board, a PLC controller, a high frequency filter and an IGBT module, and both ends of the high frequency filter are connected in series with reactors; the reactive power compensator comprises a power capacitor bank, reactors, a capacitance compensation controller connected with a power network through a current transformer, and the power capacitors is connected with the power network through a bidirectional thyristor circuit; and a bidirectional thyristor circuit comprises two inversely parallel thyristors, and wire inlet poles of the two thyristors are connected with wire outlet poles through an RC filter circuit, and after being connected in parallel, control poles of the two thyristors access the capacitance compensation controller. A parallel operation controller coordinates the active dynamic filter and the reactive power compensator actions to prevent compensation conflicts.

The invention discloses a powdered-coal burner and a rotary cement kiln provided with the powdered-coal burner. The powdered -coal burner comprises a heat source and an internal burning chamber, wherein the internal burning chamber is used for maintaining an internal powdered-coal airflow and has a preset excess air coefficient, the heat source is positioned in the internal burning chamber, the internal burning chamber is provided with a feeding opening, a long cylindrical burning segment and a fire outlet, the feeding opening is communicated with a powdered-coal pipeline, and the fire outlet is communicated with the calcining cavity of the rotary cement kiln; and powdered coal passing through the internal burning chamber is burnt by the heat source. The powdered-coal burner provided by the invention can eliminate black powdered-coal fire heads in the calcining cavity, obtain powdered-coal flames with more excellent performance, improve the burning efficiency of the powdered coal and the quality of calcined clinkers, keep the powdered coal in the internal burning chamber to be burnt in the mode of not consuming fuel, simplify the structure of the powdered-coal burner and lower the manufacturing cost and the operating cost of the rotary cement kiln; and meanwhile, the preset excess air coefficient is maintained in the internal burning chamber, so that the reductive burning of the powdered coal is carried out in the internal burning chamber, and the generating quantity and the discharging quantity of fuel-type nitrogen oxides can be reduced.

The invention discloses a water conservancy project retaining wall with a wave dissipating effect. The water conservancy project retaining wall with the wave dissipating effect comprises a retaining wall body; a mounting groove is formed in the left side of the retaining wall body; elastic pipes are mounted in a groove in the right side of the inner wall of the mounting groove; sliding rails are arranged in the grooves in the top and the bottom of the mounting groove; the right side of the inner wall of each sliding rail is fixedly connected with a first buffering spring; the left side of eachfirst buffering spring is fixedly connected with a sliding block; the two sliding blocks are fixedly connected through a movable plate; and the right side of the movable plate is in contact with theelastic pipes. Through the cooperation of the mounting groove, the elastic pipes, the sliding rails, the first buffering springs, the sliding blocks, the movable plate, a fixed plate, a connecting shaft, a sliding sleeve, a wave retaining plate and a second buffering spring, the water conservancy project retaining wall has the wave dissipating effect, the impact of waves to the retaining wall is reduced, the retaining wall is effectively protected, the service life of the retaining wall is prolonged, and the maintenance cost in the aspect of water conservancy project is reduced indirectly.

The present invention provides a bubble water machine comprising a portable pressure bottle and an inflation area, wherein the portable pressure bottle includes a first container body, a top cover, a first base, an upper positioning assembly, a lower positioning assembly and a plug. The inflation area comprises a second container body, a second base, a first intermediary assembly, a second intermediary assembly and a third intermediary assembly. The beneficial effects of the present invention lie in: the bubble water machine can prevent a liquid from rushing back to the machine stand when the liquid containing sugar or alcohol is being inflated with a gas, and the portable pressure bottle can remain the gas in the liquid for a long time.

The invention discloses a coal-fired power plant turbulent burner suitable for low-order mixed coal combustion. The coal-fired power plant turbulent burner comprises a cone, an inner primary air shell, an inner secondary air shell, an outer primary air shell, an outer secondary air shell and a surrounding air shell, wherein the center cone is sleeved with the inner primary air shell, the inner primary air shell is sleeved with the inner secondary air shell, the inner secondary air shell is sleeved with the outer primary air shell, the outer primary air shell is sleeved with the outer secondary air shell, and the surrounding air shell is arranged on the outer side of the outer secondary air shell. An inner primary air channel is defined by the inner primary air shell, an inner secondary air channel is defined by the inner secondary air shell and the inner primary air shell, an outer primary air channel is defined by the inner secondary air shell and the outer primary air shell, an outer secondary air channel is defined by the outer primary air shell and the outer secondary air shell, and a surrounding air channel is formed outside the turbulent burner. By the adoption of the coal-fired power plant turbulent burner, the problem that air is insufficient when different types of coal of the large combustion difficulty characteristic difference are mixed and burned at a single primary air nozzle of a traditional turbulent burner is solved, and ignition and combustion of the types of coal difficult to burn can be promoted.

The invention belongs to the technical field of waterproof engineering construction and particularly relates to a material filling device for plugging high-pressure underground water, which can realize deeply plugging high-pressure underground water in a deep excavation well, an exploration well and the like. The device mainly comprises an exhaust pipe, a material injecting steel pipe, a materialcontaining bag, fixing buckles, discharge ports, filter sponge, a pressure gauge, a pump truck, a flow meter and a material injecting inner pipe. Specific application procedures are as follows: the water pressure and the well depth are measured; the material injecting steel pipe and the discharge ports are prepared; the material containing bag and the fixing buckles are bound; the material injecting inner pipe is then placed in the injecting steel pipe to spout concrete to the material containing bag until the material containing bag is closely attached to the well wall. The main structure issimple, the design is ingenious, the use is convenient and safe, smooth plugging of the high-pressure underground water can be realized, the application environment is environmentally friendly, and the market has broad prospects.