38results about How to "Passing resistance is small" patented technology

A filter-type gas separating-cleaning apparatus with quickly moving filter layer features that its filter cylinder rotating at high speed is composed of external filter net, supporting posts, internal filter net, shaft sleeve, shaft disk and supporting rings, and the gas containing solid particles and/or liquid drops is filtered by said filter cylinder. Its advantage is use of big-mesh filter material to remove fine solid particles and/or liquid drops, resulting in high filter speed, and easy cleaning.

A superfine particulate matter purifying device comprises a gas discharge-electrocoagulation device and a static enhance bag type dedusting integrated device. The gas discharge-electrocoagulation device comprises an air flow inlet (1), a corona wire (2), a gas discharge tube (3), an air flow outlet divergent pipe (5), a direct current power supply (6) and a grounding electrode (7), and the static enhance bag type dedusting integrated device comprises an air inlet (8), a magnetic valve (9), an air pocket (10), a pulse valve (11), a jetting pipe (12), a filtering bag (13), a jetting hole (14), a dust skeleton (15), a dust hopper (16), a spiral dust discharge valve (17), wires (19) and ground wires (20). The air flow inlet is arranged at one end of the gas discharge tube, the other end of the gas discharge tube is connected with the air flow outlet divergent pipe, the dust skeleton is formed by distributing the wires and the ground wires in a vertical direction at intervals, and the superfine particulate matter purifying device is suitable for smoke dust removing and particularly superfine dust purifying devices for particulate matter (PM) below 2.5.

The invention relates to a double-layer sleeve type corona plasma generating device comprising a gas buffering chamber, an outer-layer processing chamber and an inner-layer processing chamber. A gas inlet is provided on the outer side of the gas buffering chamber. An insulation baffle is provided on the inner side of the buffering chamber. Airway through holes are provided on the baffle. Gas to be processed sequentially enters the outer-layer processing chamber and the inner-layer processing chamber through the airway through holes. When the gas is completely processed, the gas is discharged from a gas outlet connected to an end of the inner-layer processing chamber. According to the invention, with the buffering chamber, the gas to be processed can be uniformly and stably delivered in the processing chambers. The chambers adopt a coaxial multi-pin-plate structure, such that electric field unevenness coefficient is high, discharge voltage is low, and thus operation energy consumption is reduced. Also, voltage adjustable range is wide, and application scope is wide. With the inner-outer double layer structure, low temperature plasma dedusting and waste gas degradation are separated, such that the influence of dust in waste gas to waste gas molecule degradation is avoided, and energy utilization rate is improved. Also, reactor structure is compact. The device provided by the invention is suitable for the fields such as waste gas treatment, sterilization and disinfection, ozone synthesis, and the like.

The invention discloses a sintered porous material with high corrosion resistance and a filter element using the same. The sintered porous material disclosed by the invention has the following characteristics: a) the sintered porous material is mainly composed of Ti, Si and C which account for more than 90 wt% of the sintered porous material, wherein the Ti accounts for 60-75 wt% of the Ti, Si and C, and the Si accounts for 10-20 wt% of the Ti, Si and C; b) the C in the sintered porous material mainly exists in the form of a Ti3SiC2 three-element MAX-phase compound, and is approximately uniformly distributed in the porous material; and c) the test proves that the pure water filtration flux of the sintered porous material, of which the porosity is 30-60%, the average pore size is 0.5-50 mu m, the tensile strength is greater than or equal to 23 MPa and the thickness is less than or equal to 5 mm, is greater than or equal to 1t/m<2>.h under the filtration pressure difference of 0.05 MPa, and the weight loss rate of the sintered porous material is less than 1.5% after being soaked in a 5 wt% hydrochloric acid solution at room temperature for 48 hours. The sintered porous material disclosed by the invention has very excellent corrosion resistance.

The invention discloses a preparation method of a sintered porous material with strong corrosion resistance. The preparation method comprises the steps of: sequentially granulating, drying, forming and sintering mixed powder of at least one of Ti powder and TiH2 power, as well as Si powder and C powder so as to prepare the sintered porous material. The content of Ti in the sintered porous material prepared from the raw materials is 60-75 percent of the total weight of the Ti, Si and C, and the content of Si is 10-20 percent of the total weight of the Ti, the Si and C; the sintering schedule comprises five stages, namely firstly gradually raising the sintering temperature from room temperature to 450 DEG C, wherein the temperature raising rate is controlled to be 1-25 DEG C/min, and the total sintering time of the first stage is 30-600min; secondly, gradually raising the sintering temperature from 450 DEG C to 900 DEG C, wherein the temperature raising rate is controlled to be 1-20 DEG C/min, the total sintering time of the second stage is 180-1000min; thirdly, gradually raising the sintering temperature from 900 DEG C to 1000 DEG C, wherein the temperature raising rate is controlled to be 1-20 DEG C/min, and the total sintering time of the third stage is 30-1000min.

The invention discloses a preparation method of a chitosan-manganese dioxide composite adsorption material. The method comprises: 1) a step of preparing a redox reaction base solution: fully dissolving potassium permanganate powder in distilled water, adding oleic acid into the solution, and stirring to form an O/W emulsion; 2) a step of soaking: soaking chitosan degradation fibers as a base material in the redox reaction base solution, and standing for 24 hours at room temperature; 3) a step of cleaning: washing the soaked chitosan degradation fibers with absolute ethyl alcohol to remove unreacted oleic acid, and then washing the fibers with distilled water to remove residual ethyl alcohol; and 4) a step of drying the cleaned chitosan degradation fibers at 70 DEG C for 6 hours. The invention also discloses the chitosan-manganese dioxide composite adsorption material. According to the preparation method and the chitosan-manganese dioxide composite adsorption material, preparation of the chitosan composite material at room temperature is achieved so that a chitosan purification base material can be effectively compounded with other materials without the need of a binder.

The invention provides a metal filter. Either or both of a peak and a trough of a metal plate body (2) of peaks (20) and troughs (21) in multiple lines is or are formed in an alternating manner. The metal filter is provided with a communicating groove (10) enabling fluids to extend along a line direction. Additionally, an opening edge part (11) of the communicating groove is equipped with verticalpieces (30, 31) laterally vertical to convex surfaces of a peak (20) and a trough (21). For instance, the vertical pieces (30, 31) are respectively arranged on both sides of a pair of opening edge parts which extend along a line direction by being opposite to each other. The vertical pieces are long pieces which roughly extend at all opening edge parts. Accordingly, contact areas between fluids such as air and the like, and a catalyst layer and an absorption layer are ensured at low cost. Furthermore, passing resistance of fluids is inhibited so that passing efficiency is increased. As a result, excellent purification effect can be efficiently obtained.

The invention discloses an intercooler applied to a large heavy truck and belongs to the field of structure design of intercoolers. The intercooler applied to the large heavy truck comprises a cooling body internally provided with a cooling core. A left end socket is encapsulated on the left end face of the cooling body, a right end socket is encapsulated on the right end face of the cooling body, an air inlet pipe is arranged on the front plate face of the left end socket, and an air outlet pipe is arranged on the front plate face of the right end socket. The air inlet pipe and the left end socket are of an integrated structure, and the air outlet pipe and the right end socket are of an integrated structure. By means of the structure, the intercooler applied to the large heavy truck solves the problem that the air pass resistance in an intercooler in the prior art is large, and consequently the operation of an engine is influenced; the air passing resistance is reduced, the smoothness of air is ensured, and thus the good operation of the engine is ensured; meanwhile, the cooling efficiency of the intercooler applied to the large heavy truck is improved, and the normal running of the large heavy truck is further ensured.

The invention discloses a high-precision electric arc type self-adaptive grinding shaping device. The device comprises a rack, a horizontal displacement mechanism, a self-adaptive grinding shaping mechanism, a vertical displacement mechanism and a rotary clamping mechanism; the horizontal displacement mechanism is installed at one end of the rack, the self-adaptive grinding shaping mechanism is connected with the output end of the horizontal displacement mechanism through a cantilever, the vertical displacement mechanism is installed at the other end of the rack, and the rotary clamping mechanism is fixed to the output end of the vertical displacement mechanism; and the self-adaptive grinding shaping mechanism comprises an elastic deflection compensation component, a self-orientation electrode component and a self-centering tensioning component, the elastic deflection compensation component is fixed on the cantilever, the self-centering tensioning component is connected with the deflection output end of the elastic deflection compensation component, and the self-orientation electrode component is movably connected to the self-centering tensioning component in a sleeving mode, and can rotate relative to the self-centering tensioning component. According to the device, the high-precision grinding shaping operation on an valve orifice intersection line is achieved, the mechanicaloperation is achieved, the labor intensity is reduced, the efficiency is high, and a valve is not prone to being scratched.

The invention discloses a high-precision electric arc type self-adaptive grinding and shaping robot complete machine. The high-precision electric arc type self-adaptive grinding and shaping robot complete machine comprises a machine tool, an electric arc type grinding robot unit, a material moving and transferring unit and a conveying unit, wherein the electric arc type grinding robot unit and theconveying unit are arranged on the machine tool at intervals, and the material moving and transferring unit is arranged on the machine tool and is located between the electric arc type grinding robotunit and the conveying unit; and the electric arc type grinding robot unit comprises a machine frame, a horizontal displacement mechanism, a self-adaptive grinding and shaping mechanism, a vertical displacement mechanism and a rotary clamping mechanism. According to the high-precision electric arc type self-adaptive grinding and shaping robot complete machine, high-precision grinding and shapingoperation at the intersection line of valve orifices is realized, mechanical operation is realized, the labor intensity is reduced, the efficiency is high, and a valve is not prone to being scratched.

The invention discloses a moisture-proof type filtering core supporting plate, an air filter and an engine of the air filter. The moisture-proof type filtering core supporting plate comprises a supporting plate body provided with an air outlet hole and a waste gas inlet hole. The waste gas inlet hole guides waste gas into the air outlet hole through a guide channel. The supporting plate body is further provided with a flow guiding part used for limiting the waste gas flowing out from the guide channel to be at the air outlet hole. By arranging the flow guiding part, the situation that a filtering core is wetted due to the fact that the waste gas is directly condensed on the surfaces of relatively cold parts in the air filter after flowing out from the guide channel is avoided; the filtering core of the air filter is kept dry beneficially; the passing resistance of the filtering core is small; and meanwhile, the filtering effect of the air filter and the good performance of the engine are ensured.

The invention discloses a spiral-welded steel pipe ion cutting smoke treatment system capable of improving the dust removing efficiency and preventing the dust dispersion and being provided with good popularity. The smoke treatment system comprises a dust sucking cover and a dust removing host machine; the spiral-welded steel pipe ion cutting smoke treatment system further comprises a rigid dust removing pipe; two dust sucking ports are at least formed in the lower surface of the dust sucking cover; the dust sucking ports are uniformly distributed in the length direction of the dust sucking cover; fireproof soft curtains are arranged around the lower surface of the dust sucking cover; the dust removing host machine is provided with an exhaust port and a dust sucking main pipe; the dust sucking ports of the dust sucking cover are communicated with the dust sucking main pipe through dust removing pipes; the dust sucking ports and the dust removing pipes are corresponding one to one; and valves are arranged on the dust removing pipes. The invention further discloses a method for treating smoke by using the smoke treatment device. The device and the method, provided by the invention, can improve the smoke sucking efficiency, are excellent in popularity, and can prolong the service life of a filter barrel.

The invention belongs to the field of purification of gases and particularly relates to a gas purifying device for purifying fine particulate matters. The gas purifying system mainly comprises a purifying main body, a purifying solution and a motor, the purifying main body is provided with a gas inlet and a gas outlet, the gas purifying device is characterized by further comprising a flow stirrerfor stirring and mixing the gas and the purifying solution, the purifying solution is arranged in a cavity of the purifying main body, and the flow stirrer is driven by the motor to stir and mix the gas needing to be purified with the purifying solution in the cavity of the purifying main body. The cost and the later-period use cost of the gas purifying device are quite low, the fine particulate matters are relatively thoroughly filtered at the same time, the accumulated total quantity of the filtered fine particulate matters is huge, and the remarkable economic, social and environmental benefits are produced.