41results about How to "No pressure drop" patented technology

A liquid filtration and dispensing system stores a liquid, such as water or another beverage, filters the liquid with an integrated component, and dispenses the filtered liquid for use, such as for drinking. The liquid filtration and dispensing system includes a dispenser body for storing a liquid or fluid to be filtered and/or dispensed from the system. A filtration assembly, also known as a “cartridge”, couples to the dispenser body, and includes a filtration mechanism, or space for inserting a filtration mechanism, for filtering liquid stored in and/or expelled from the dispenser body. The filtration assembly may be removable and replaceable once spent. A dispenser capping element couples to the filtration assembly to seal and contain the filtration assembly, and includes a discharge opening for dispensing a filtered liquid from the system. The filtration assembly may also include an air vent assembly to facilitate dispensing of the liquid.

The invention relates to a Chinese medicine hot reflux extracting solution continuous enrichment device and the extraction, enrichment an evaporation of Chinese medicine. The device comprises an extracting tank (1), a filter (2), a middle liquid medicine tank (3), a liquid medicine pump (4), a rotary thin film evaporating concentrator (5), a concentrated solution receiving tank (6), a first condenser (7), a second condenser (8), a solvent receiving tank (9) and a vacuum system (10). A liquid medicine outlet of the extracting tank (1) is communicated with a liquid medicine inlet of the filter(2); the liquid medicine outlet of the filter is communicated with the liquid medicine inlet of the middle liquid medicine tank (3); the liquid medicine outlet of the middle liquid medicine tank is communicated with the liquid medicine outlet of the liquid medicine pump (4); the liquid medicine outlet of the liquid medicine pump is communicated with the liquid medicine inlet of the rotary thin film evaporating concentrator (5); steam produced in the extracting tank (1) is sent to the first condenser(7); the condensed hot fluid in the first condenser(7) is switched into the extracting tank (1); and a high density concentration solution extractum outlet of the rotary thin film evaporating concentrator(5) is communicated with the concentrated solution receiving tank (6). The device is characterized by short heating time, low temperature, stable evaporation capacity and comparatively small amount of solvent, which can realize continuous evaporation and concentration.

The invention relates to a guide blade or a stator blade, and an air treatment device having the guide blade or the stator blade. The guide blade or the stator blade comprises a wheel hub, blades and a wheel cover, wherein the blades are distributed on the wheel hub and/or the wheel cover at certain intervals along the circumferential direction. Structural characteristics of the guide blade or the stator blade are that: the blades comprise a first group of blades and a second groups of blades; the two groups of the blades have conductive properties; the first group of the blades and the second group of the blades are staggeredly distributed and insulated, and are not conducted; the first group of the blades and the second group of the blades are respectively applied with high potential and low potential so as to form a charged high voltage space between the first group of the blades and the second group of the blades, the high voltage space forms a dust removing channel, and the dust removing channel can effectively adsorb dust particles flowing through the dust removing channel. The blade and the device of the present invention have characteristics of simple and reasonable structure, high dust absorption efficiency, low resistance, low power consumption, low noise and no pressure loss. In addition, with the blade and the device of the present invention, air delivery, air pressure and efficiency of a fan can be effectively improved.

Disclosed are a centrifugal wind wheel and an air treatment device with the same. The centrifugal wind wheel comprises a base plate, a motor mounting hole, blades and a reinforcing frame or wheel cover, one ends of the blades are distributed on the base plate at certain intervals along a peripheral direction, the other ends of the blades are fixed on the reinforcing frame or wheel cover along the peripheral direction, the blades comprise a first group of blades and a second group of blades, both the two groups of blades have conduction characteristics, and the first group of blades and the second group of blades are distributed in a mutually staggered manner, are insulated from each other and are not conducted; and high potential and low potential are respectively applied to the first group of blades and the second group of blades, a high-voltage charging place is formed between the first group of blades and the second group of blades which are staggered mutually and forms a dust removal channel, and the dust removal channel can effectively absorb dust particles in airflow flowing through the dust removal channel. The centrifugal wind wheel and the air treatment device with the same have the advantages of simple and reasonable structure, high dust absorption efficiency, low resistance, electricity consumption and noise and zero pressure loss.

The invention discloses an axial flow wind wheel, which comprises a wheel hub and blades, wherein the blades are distributed at certain intervals on the outer cylindrical surface of the wheel hub made of an insulating material; the blades are partitioned into a first group of blades and a second group of blades; the two groups of blades are distributed in a staggered way, have conduction characteristics and are insulated from each other; and a high potential and a low potential are applied to the two groups of blades respectively. The invention further provides a manufacturing method of the axial flow wind wheel and an air treating device provided with the axial flow wind wheel. The air treating device can be used for collecting dust particles in air flow, and has the advantages of low power consumption, freeness from pressure drop, low noise, high deashing efficiency, convenience in using, long service life, freeness from attenuation of the deashing efficiency, and the like.

The invention discloses a zero-loss deep current-limiting protection device based on first-wave breaking technology, which includes a protection device body and high-speed switches distributed inside the protection device body; device, display and control, indicator light, button, analog plate, observation window and nameplate, and the inner side of the protection device body is provided with a through-bus bar, a supporting insulator, a quick switch, a first current transformer, a second current transformer and two contact boxes , wherein the through busbar is connected to one of the contact boxes through the supporting insulator, the other contact box is connected to the second current transformer through the first current transformer, and the two contact boxes are connected through a fast switch. The invention has fast action speed, strong breaking capacity, good current limiting effect of the current-limiting reactor, no energy loss, no voltage drop, and no leakage magnetic field, long service life, reliable performance, small action dispersion, and no switching on. rebound.

The invention discloses a saturated bridge type short circuit fault current limiter, which comprises a saturated reactor and a rectifier bridge. The connecting point of a first diode (D1) and a second diode (D2) of the rectifier bridge (Br) is a first alternating current end (A); the connecting point of a third diode (D3) and a fourth diode (D4) of the rectifier bridge (Br) is a second alternating current end (B); the connecting point of the first diode (D1) and the third diode (D3) of the rectifier bridge (Br) is a first direct current end (M); the connecting point of the second diode (D2) and the fourth diode (D4) of the rectifier bridge (Br) is a second direct current end (N); the saturated reactor (L) is connected between the first direct current end (M) and the second direct current end (N); one end of an alternating current power supply (Uac) is connected to the first alternating current end (A); the other end of the alternating current power supply (Uac) is grounded; one end of a circuit breaker (SW) is connected to the second alternating current end (B); the other end of the circuit breaker (SW) is connected with a load (RL) in series and is then grounded. The saturated reactor is realized by a permanent magnet and a direct current coil.

The invention relates to a hybrid short-circuit fault current limiter and a current limiting method. The hybrid short-circuit fault current limiter comprises a current transfer branch and a fault current limiting branch, wherein the current transfer branch comprises a rapid mechanical switch and a power electronic switch in series. In a steady state, a current passes through the current transfer branch, and the loss during normal running is reduced; when a fault occurs, a switch on the transfer branch acts, and the current is transferred to the fault current limiting branch; the fault currentlimiting branch comprises a dual-split reactor and a switch, and a first winding of the dual-split reactor is connected in series with the switch and is connected in parallel with a second winding; the switch is switched on in the steady state, and the fault current limiting branch shows low impedance; and the switch is switched off when the fault occurs, and the fault current limiting branch shows high impedance. By matching of the current transfer branch and the fault current limiting branch, the loss of the current limiter during normal running is reduced, meanwhile, fault current limitingis achieved by the dual-split reactor, and running economy and reliability of the current limiter are improved.

The invention belongs to the technical field of weak signal processing, and specifically provides a method and a device for converting a small-amplitude alternating-current signal into a direct-current signal. The device comprises a zero-crossing comparator (1), a switch switching circuit (2), a processor (3) and a rectifying and filtering circuit (4). The method comprises the following steps that: when the small-amplitude alternating-current signal is in a positive half cycle or a negative half cycle at present, the zero-crossing comparator (1) correspondingly outputs a high level or a low level; the processor (3) detects a level signal output by the zero-crossing comparator (1); and the switch switching circuit (2) is controlled to overturn the negative half cycle of the small-amplitude alternating-current signal in order to convert the small-amplitude alternating-current signal into the direct-current signal. The device is simple in structure; very weak alternating-current signals can be processed; and the problem of signal distortion is solved.

The invention relates to the field of air conditioners, in particular to a liquid distributor assembly and an air conditioner comprising same. The liquid distributor assembly comprises a liquid distributing head, wherein a liquid collecting hole is formed in one end of the liquid distributing head; a plurality of liquid distributing holes are formed in the other end of the liquid distributing head; the liquid distributing holes communicate with a liquid distributing tube of a heat exchanger; a gas-liquid separator with a refrigerant outflow hole is arranged at the upstream side of the liquid collecting hole; and the refrigerant outflow hole communicates with the liquid collecting hole. In order to solve the technical problems that a liquid distributor in the prior art is uneven in frosting and defrosting and is not good in heating effect as a gas-liquid mixture entering each liquid distributing tube of a heat exchanger is inconsistent in proportion, the invention provides the liquid distributor assembly which is more even in frosting and defrosting and is better in heating effect as well as the air conditioner comprising the liquid distributor assembly.

The invention discloses a preparation method for an integral catalyst for selectively oxidizing CO in hydrogen-rich reformed gas, and belongs to the field of CO preferential oxidization catalyst preparation. The preparation method for the catalyst comprises the following steps: dissolving salt of Ru and salt of soluble alkali metal or/and alkaline-earth metal in a nitric acid solution, and preheating the mixed solution in a water bath; steeping a dichroite carrier coated with alumina gel in the preheated solution for 5 to 10min, drying the dichroite carrier, preroasting the dichroite carrier at a temperature of between 100 and 160 DEG C for 1 to 3h and then roasting the dichroite carrier at a temperature of between 300 and 1,000 DEG C for 2 to 5h at the atmosphere of inert gases; and reducing the obtained product at a temperature of between 300 and 800 DEG C for 2 to 5h at the atmosphere of H2-inert gas mixture. The method has simple preparation process and low cost; and the obtained catalyst has the characteristics of high activity, high CO selection, low content of noble metal, low ignition temperature, wide temperature range, and capacity of being conveniently applied to a fuel cell system.

The present invention relates to a plant (10) for liquefying natural gas (90) , the plant (10) at least comprising: - a pre-cooling heat exchanger train (1) comprising a final heat exchanger (2a) for cooling the natural gas stream (90); - a distributor (4) located upstream of the final heat exchanger for splitting the natural gas stream (90) into at least first and second natural gas substreams; - at least first and second main cryogenic systems (200,200') , each system (200,200') comprising an outlet for liquefied natural gas (95,95').

The invention relates to the field of industrial capital construction and large part installation, provides a furnace lid inversion and furnace lid installing process and overcomes the influence on furnace lid hoisting and mounting operation after a plant roof and a rainproof system are formed so as to safely and conveniently hoist and install a furnace lid. The furnace lid inversion and furnace lid installing process comprises an electric furnace shop formed by a steel structure, a roof and a defensive system, a furnace housing installed in place and including sectioned furnace lids of a peripheral section furnace lid, a middle section furnace lid and of a central section furnace lid, a flat cart for transferring the sectioned furnace lids to a storage yard in a site, a movable hoisting device for hoisting and installing the sectioned furnace lids, a main winch hoisting system formed by a main winch and a cooperating main winch pulley set, an auxiliary winch hoisting system formed byan auxiliary winch and a cooperating auxiliary winch pulley set, an inversion chain for correcting the moving directions of the sectioned furnace lids in the sectioned furnace lid hoisting and installing process, and also comprises a furnace lid inversion and utilization movable hoisting device and a technology for installing a furnace lid through cooperation of winches and pulley sets.