51results about How to "Increase suction power" patented technology

The invention discloses an efficient cyclone separation device for a dust remover, which comprises a barrel body and a filter arranged inside the barrel body, wherein an air inlet communicated with the inside of the barrel is formed on one side of the upper end of the barrel body in tangential direction of the outer wall; the cross section of the outer wall of an air intake way at the upper end of the barrel body, communicated with the air inlet, is helical; and a plurality of air intake guide vanes are evenly arranged inside the air intake way in the circular direction. According to the efficient cyclone separation device for the dust remover, the cross sectional area is gradually reduced from the air inlet to the inside to facilitate the increasement of the tangential speed of the airflow inside the air intake way along with the reduction of the cross sectional area, so as to increase the separation efficiency of an outer eddy side; the air intake guide vanes are arranged inside the air intake way and evenly distributed in the circular direction to facilitate the conversion of the axial speed of the airflow to the tangential speed, reduce the loss of energy of axial downwards speed of an inner eddy and improve the suction power of the dust remover; and therefore, the efficient cyclone separation device for dust remover has the advantages of high efficiency and less power loss and can effectively improve the suction power of a dust remover motor.

In a suctioning state, even if the amount of dust trapped in a dust collecting unit in a main air passage is increased, air suctioned from a hose connection port is branched into a first half passage and reduction in the suction air amount can be suppressed. When the suctioning state is switched to a dust moving state by switch means, the dust trapped in a pleated filter is moved to the dust collecting unit, increase in the air passage resistance at the first half passage side caused by clogging of the pleated filter can be suppressed, and reduction in suction power over time can be suppressed. Since an upper air passage and lower air passage are provided in the lid body, the dust collecting unit is exposed with the lid body opened, whereby maintenance performance of the dust collecting unit is improved.

The invention discloses multi-cyclone separation filter equipment comprising a filter bung, a filter screen device, a filter screen pedestal, an inner cyclone device, an inner dust bucket, a filter bucket, an outer dust bucket, with the filter bucket covered by the filter bung and the outer dust bucket disposed at the bottom of the filter bucket. The filter bung is provided with an outtake pipe, and an intake pipe is installed on the side wall of the filter bucket. And the inside of the filter bucket is equipped orderly with the filter screen device, the filter screen pedestal, the inner cyclone device and the inner dust bucket from top to bottom. According to the invention, filtered by multi-cyclone, the intake air rotates repeatedly, so that dust or stive in the air can fall into the dust buckets and the tiny stive and harmful substances can be filtered out. The equipment of the invention is fast and convenient for cleaning, without the problem of a blocked filter screen.

The invention provides an electric blower and an electric dust collector installed with the electric blower. The efficiency of the electric blower is improved by reducing the flow rate at a bent portion from a diffuser to a ball returning device and turning the flow smoothly to reduce the bending loss. Further, by improving the efficiency of the electric blower, the sucking power, i.e. output, is enhanced. The electric blower is provided with a separation plate, a plurality of ball returning vanes disposed on one surface of the separation plate, a plurality of diffuser vanes disposed on the other surface of the separation plate, and an electric motor. The other surface of the separation plate is provided with a recess. Flow channels are disposed by adjacent diffuser vanes in the plurality of diffuser vanes and the separation plates. The recess portion is set to be an end portion from the flow channel to the outer peripheral of the separation plate.

The embodiment of the invention relates to the field of appliances, in particular to a door body suction assisting device and a refrigerator and is used for increasing the suction assisting force provided by a suction assisting device body. According to the embodiment, the door body suction assisting device comprises a hinge plate and a suction assisting device body, wherein the hinge plate is fixedly connected to a refrigerator body and provided with a suction assisting arm, and the two side surfaces of the suction assisting arm are provided with protrusions; and the suction assisting device body is fixedly connected to a door body, hinged to the hinge plate and provided with bent arms capable of generating elastic deformation. When the door body is closed, the bent arms are located on the two sides of the suction assisting arm correspondingly and are matched with the protrusions of the suction assisting arm correspondingly to generate elastic deformation. Thus, in the door body closing process, two contact surfaces exist between the bent arms of the suction assisting device body and the protrusions of the suction assisting arm, and the suction assisting device body can produce two suction assisting forces through the two protrusions and the two bent arms, so that the suction assisting forces of the suction assisting device are increased.

The invention provides a kitchen ventilator and a kitchen ventilator and cooker integrated machine and relates to the technical field of purification equipment. The kitchen ventilator comprises a fumecollecting hood and a wind shield. A fume collecting panel of the fume collecting hood is provided with an air inlet. The fume collecting hood is provided with a driving device. The driving end of the driving device is connected with the wind shield and used for driving the wind shield to extend, contract and rotate relative to the air inlet. The wind shield and the fume collecting panel form a left fume gathering cavity and/or a right fume gathering cavity. The kitchen ventilator and cooker integrated machine comprises a cooker and the kitchen ventilator. A panel of the cooker is sequentially provided with a left burner and a right burner from left to right. The kitchen ventilator is arranged between the left burner and the right burner. An opening of the left fume gathering cavity of the kitchen ventilator faces the left burner, and an opening of the right fume gathering cavity of the kitchen ventilator faces the right burner. The wind shield of the kitchen ventilator is applicableto three conditions to be adjusted into three fume gathering forms, wherein the first condition is that a user uses the left burner and the right burner at the same time, the second condition is thatthe user only uses the left burner, and the third condition is that the user only uses the right burner; and thus, the fume gathering effect of the kitchen ventilator is improved, and furthermore, thepurification effect of the kitchen ventilator is improved.

The present invention relates to a method for detection of ink residual, an ink residual detection mechanism, an ink supply system and an ink jet printer. The method is configured to detection whether there is ink or not. The method comprises the following steps: 1, setting a presetting value having larger suction power than the normal suction power; 2, detecting whether the position has ink or not through an ink residual detection part, and if the position has no ink, entering the step 3; 3, comparing the real-time suction power to the presetting value, if the real-time suction power is smaller than the presetting value, performing the step 4, and on the contrary, turning the step 5; 4, adding the suction power, and entering the step 2; and 5, prompting that the ink is exhausted. After the ink residual detection part detects that the position has no ink, and the suction power of an ink suction needle is increased to allow the ink remained in an ink box to be pumped out until the power to be sucked reaches the presetting value and the ink residual detection part detects that the position has no ink, the printer prompts that the ink is exhausted. The method for detection of ink residual, the ink residual detection mechanism, the ink supply system and the ink jet printer can accurately detect the ink residual in the ink box to allow the ink residual in the ink box to reach the minimum and avoid the damaging caused by the air suction of the ink suction needle.

The invention relates to an underwater cleaner, in particular for a swimming pool, comprising a housing in which is arranged an especially battery - operated pump with an electric motor and an impeller and a second channel section, which accommodates the impeller, the second channel section having a first channel section, the first channel section is arranged inclined relative to the first channel section, and the impeller axis is arranged inclined to a normal on the opening cross section of the inlet opening. The ratio A / B of a first cross-sectional area A to a second cross-sectional area B is less than 2.8, the first cross-sectional area A being defined by the smallest cross-section of flow in the first channel section 13 and the second cross-sectional area B by the smallest cross-section of the second channel section is defined directly at the pump inlet. In order to obtain a very simple and productive underwater cleaner and to realize high suction effects with relatively little flow losses in the case of wheels with relatively large diameters, the first channel section transits into the second channel section.

A multistage built-in heat source and multistage waste heat recycling type cereal drying tower comprises a tower body and a plurality of air chambers. A cereal storage section, a multistage drying section, a cooling section, a cereal discharging section and a cereal discharging hopper are sequentially arranged in the tower body from top to bottom. The air chambers matched with the multistage drying section and the cooling section are arranged at the positions, on the tower body, of the left side and the right side of the multistage drying section and the cooling section from top to bottom. Theair chambers are divided into waste gas chambers, hot air chambers and cold air chambers according to functions, and the air chambers located on the left side are alternately and sequentially arranged from the waste gas chamber and the hot air chamber. The cold air chamber is arranged on the lowermost layer of the air chambers located on the right side, and the waste gas chamber and the hot air chamber are alternately and sequentially arranged above the cold air chamber. A hot blast heater is arranged in the vertically adjacent waste gas chamber and hot air chamber of the cereal discharging section, the hot blast heater is one or more of upright direct-fired hot blast heaters, an air outlet of the hot blast heater is formed in the hot air chambers, and an air inlet of the hot blast heateris formed in the waste gas chambers. The multistage built-in heat source and multistage waste heat recycling type cereal drying tower can achieve the aims of reducing energy consumption and reducingemission pollution.

The invention discloses ventilating and dedusting equipment for underground coal mining. The ventilating and dedusting equipment comprises a tubular hollow shell, wherein an air entering space is arranged at the inner part of the bottom part of the tubular hollow shell; multiple main air inlet pipelines in an integrated structure with the tubular hollow shell are arranged at the bottom part of thetubular hollow shell; main air inlet holes for communicating the exterior with the air entering space are formed in the main air inlet pipelines; an air filter mechanism is arranged at the inner partof the tubular hollow shell and is located above the air entering space; a main air vent for communicating the top part of the air entering space with the top part of the air filter mechanism is formed in the tubular hollow shell. The ventilating and dedusting equipment disclosed by the invention is used for air exhausting during underground coal mining, can be placed in a safety zone and can work through a pipeline; in addition, the ventilating and dedusting equipment is capable of filtering exhausted air through liquid water, so that the content of flammable matters in air can be effectively reduced; in addition, the ventilating and dedusting equipment is provided with a turbo charging mechanism, so that the air suction power can be increased.

The invention provides a cotton picker. The cotton picker comprises a cotton picking handle, a hose, a cotton-air separation box, a centrifugal fan and a case. A handle is arranged on the case, and the handle is arranged on the upper portion of the case. One end of the cotton picking hose is connected with a separation box shell, and a suction head is arranged at the other end of the cotton picking hose. A wind closing wheel is arranged on the lower portion of the separation box, and cotton is conveyed to a cotton outlet. A cotton collecting bag is arranged on the outlet. A motor is arranged on the lower portion in the case, the motor transmits torque to a rotary shaft of the wind closing wheel through a gear reducer, a large belt wheel is arranged on the rotary shaft of the wind closing wheel, a small belt wheel is arranged on a rotary shaft of a screen, rotational motion of the wind closing wheel is also transmitted to the screen through belt drive, the rotating speed of the screen is far higher than that of the wind closing wheel, and large centrifugal force is generated. The cotton picker is high in suction power and more reasonable in structure, the cotton hull separation rate is high, and cotton and cotton seed separation rate is higher.

The invention relates to a side-channel pump (28) and to a method for operating a side-channel pump (28) in which an impeller (22) rotates in a working chamber (23) provided with a side channel (24). According to the invention, the pump (28) is operated at an overspeed with a gas-filled working chamber (23) in a first step. The speed is then reduced to an operating speed in order to pump a liquid. The pump according to the invention has a high suction power as a result of the overspeed, but only gas is drawn initially.

The present invention provides an electric vacuum cleaner having a small and easy-to-operate cyclone-type dust collecting section. It has: an inflow part (115) that flows into the dust-laden air; a separation chamber (104) that separates dust from the dust-laden air that flows in from the inflow part; Part (105a); the first communication port (117) that communicates the first dust containing part with the separation chamber; the first exhaust port (144) that discharges the air stream discharged from the separation chamber; is arranged in the first dust containing part of the second exhaust port (146); accommodate dust, and separate from the first dust containing part 105a set second dust containing part (105b); communicate with the second dust containing part and the separation chamber, and with the first communication port The second communication port (118) provided separately, and the third exhaust port (147) for discharging the air discharged from the second dust containing part.