44results about How to "Increase ventilation resistance" patented technology

An air conditioning register is provided that includes a case, a downstream fin, a specific upstream fin extending in a direction perpendicular to the downstream fin, and an operation knob. The specific upstream fin includes a fin main body pivotally supported by the case via an upstream fin shaft and a transmission body pivotally supported by the case via a pivot located further upstream than the upstream fin shaft. The fin main body and the transmission body are coupled to each other. The operation knob is mounted slidably on the downstream fin and includes a pair of fork portions sandwiching a transmission shaft portion of the transmission body therebetween. When the operation knob is operated to slide and thereby the transmission shaft portion is moved, the fin main body of the specific upstream fin is tilted.

Provided is an interior material for motor vehicles which is lightweight and has excellent sound absorption and sound insulation performance. The interior material for motor vehicles which is lightweight and has high sound absorption and sound insulation performance can be obtained by using a paper material (1) which includes at least 90% by mass of a porous pulp fiber and which has an airflow resistance ranging from 0.07 to 3.00 kPas / m. The porous pulp fiber has a beating degree ranging from 350 to 650 ml in terms of Canadian standard freeness (CSF) as provided for in JIS P 8121-1995, 4. Canadian Standard Freeness, and has multiple pores which open in the surface thereof.

Provided is a precoated fin material for heat exchangers that allows the construction of a fin structure in which frost formation at the time of heater operation can be prevented to the extent possible, and under such a condition that condensation is liable to occur on a fin surface, a water droplet of condensed water can be quickly removed by bringing the water droplet into contact with a hydrophilic film, and as a result, a favorable heat exchange function can be maintained without any increase in ventilation resistance. Also provided is a heat exchanger including such fin structure. The precoated fin material for heat exchangers includes: a fin substrate formed of an aluminum plate material; a crosslinked hydrophobic film having a frost formation-suppressing effect, the crosslinked hydrophobic film being formed on one surface of the fin substrate and being formed of an aqueous hydrophobic coating composition containing a resin (A) having a fluorine atom-containing group, a quaternary ammonium salt group-containing modified epoxy resin (B), and an amino resin (C) at predetermined ratios; and a hydrophilic film having a condensed water-removing effect, the hydrophilic film being formed on another surface of the fin substrate. The heat exchanger includes a fin structure in which a hydrophobic surface having a frost formation-suppressing effect and a hydrophilic surface having a condensed water-removing effect are opposite to each other.

There is provided a cooler for heater-containing box in which an outside air fan for carrying air on an outside air path and an inside air fan for carrying air on an inside air path are arranged such that a rotating shaft of each fan is in parallel with an air intake direction, and a heat exchanger for exchanging sensible heat of outside air and inside air is arranged between the outside air path and the inside air path such that a suction port at a longitudinal air-path side of the heat exchanger is aligned with a blowout port of the fan. The cooler for heater-containing box capable of making the depth thinner can be provided.

The invention discloses an air filtering dust prevention power distribution cabinet capable of achieving automatic cleaning. The power distribution cabinet includes a cabinet body, wherein the cabinetbody is internally fixedly connected with a fixed board, the cabinet body is divided by the fixed board into a device chamber and an air filtering chamber from up to down, the air filtering chamber is internally provided with a dust bucket in communication with the external part, a lower end of the dust bucket is connected with a sealing cover, a lower end of the cabinet body is provided with anair inlet, the air inlet is internally provided with an air fan, the fixed board is embedded with two filtering core plates, the fixed board is vertically provided with a rotation shaft in a rotationconnection in a penetration mode, a lower end of the rotation shaft is fixedly connected with a brush rod in contact with the filtering core plates, an upper end of the rotation shaft is fixedly connected with an impeller, and the impeller and the rotation shaft are coaxially arranged. The power distribution cabinet is advantaged in that automatic dust cleaning is completed after the dust is accumulated and attached to a surface of the filtering core plates operating for the long time, a knocking mechanism is used for assisting in removing the dust, and the de-dusting effect is improved.

The invention discloses a porous-medium gas hot water heater, relating to a heater in which a pipe is wound into a spiral form to separate the continuous flows of water and a heating medium; the heater is structurally characterized in that: fine-pore porous medium materials are filled in an anti-backfire channel and a groove of a water cooling sleeve; macropore porous medium materials, which are metal fibers or foamed ceramics, are filled in a combustion chamber; heat exchanging tubes exchange heat directly with the macropore porous medium materials in the combustion chamber to conduct radiation or or heat exchange with the form of heat conduction, and high temperature fume realizes strong heat exchange between the peripheral dense heat exchanging tubes and the macropore porous-medium materials and leads the fume to be cooled rapidly and steam to condense directly on the tube walls; therefore, the heat conduction of the combustion chamber is strengthened and the heat released by the combustion can be rapidly and effectively transferred to water so that the steam in the fume condenses to recycle the condensation heat of water, thus realizing the goal of ultimately absorbing the heat released by the combustion. The hot water heater has simple structure and heat efficiency of over 96 percent, meeting the Grade-I energy efficiency standard for household rapid water heaters.

A process for sintered-ore production which comprises a granulation step, a drying step, and a sintering step. The granulation step comprises adding water and a binder to a raw material to be sintered which contains a carbonaceous material and granulating the mixture to produce raw granules to be sintered. The drying step comprises drying the raw granules to be sintered to thereby produce dried raw granules to be sintered which have a water content of 4.0 mass% or lower. The sintering step comprises introducing the dried raw granules into a sintering apparatus and sintering the granules.

An indoor unit (2) for an air conditioner (1) has a casing (23), a plate-like section (26), and a heat insulating material (27).The casing (23) has indoor air inlets (52a, 53a) and outlet (56a). The plate-like section (26) and the heat insulating material (27) define a gap (S1) that is near the outlet (56a) and into which the indoor air enters. Airflow resistance increasing regions (C1, C2) are formed in the plate-like section (26) and the heat insulating material (27). The Airflow resistance increasing regions (C1, C2) are shaped to increase airflow resistance in the gap (S1). In the indoor unit (2) of the air conditioner (1), growth of condensation water near the outlet (56b) is suppressed, and this in turn suppresses dropping of the water.

The invention discloses a petroleum coke direct burner, comprising a hopper, a fire grate, air chambers and a deslagging channel, wherein, the fire grate is driven by a driving shaft and a driven shaft to rotate; a front arch is arranged on an upper front wall, and a rear arch is arranged on a rear wall; the deslagging channel is arranged between the fire grate and the rear wall; a plurality of the air chambers are arranged under the fire grate; the hopper is arranged outside the front wall and is internally provided with a sizing screen; the lower space of a separating baffle plate is divided into a coarse material box and a fine material box, the coarse material box is provided with a coarse material gate for controlling discharge speed, and the fine material box is provided with a fine material gate for controlling discharge speed; and the air supply system of the air chamber is provided with an air preheater. The petroleum coke direct burner can be widely applied in the field of boiler combustion equipment, and has the advantages of simple structure, easy ignition and high combustion efficiency.

The invention is to provide a vehicle air conditioning unit capable of extending a hot air guide passage and guiding a part of hot air to the upper part of an air mix chamber reliably in an air mix mode and releasing extension of the hot air guide passage and suppressing an increase in the air-flow resistance of cool air reliably in a refrigerating mode. A vehicle air conditioning unit (1) includes the air mix chamber (11) which is accommodated in a case (4) and in which air passing through a heating exchanger (7) is mixed with air bypassing the heating exchanger, a hot air guide passage (20), disposed in an air duct (5), that guides a part of hot air from a lower part to the inside of the air mix chamber (11), and a movable guide (25) disposed in the air duct (5) and including a rotary shaft (26) and a door body (27). The movable guide (25) extends the hot air guide passage (20) to an upper part of the air mix chamber (11) using an extension part (271) of the door body (27) in the lower limit position of rotation of the door body (27) and extends the hot air guide passage (20) using the movable guide (25) in the air mix mode.

An automotive air conditioner has an ionizer (40). The automotive air conditioner supplies ions generated by the ionizer (40) into a passenger compartment (6) to create an average ion concentration of 5000 ions per cc of higher in the passenger compartment (6).

The invention relates to the technical field of control on VOCs (volatile organic compounds) waste gas, in particular to a use method of a spiral step fin tower for purifying the VOCs waste gas. The use method is characterized by comprising use methods of a tower body assembly, a slag discharge rotary disc assembly, a support roll assembly and a support table. The use method has the advantages that the spiral conveying is effectively combined with a tower reaction working principle, and the spiral conveying is utilized, so that the sustained moving of an adsorbent under the sealing condition is realized, the interphase contact area with a tower reactor is large, and the mass transfer efficiency is high; the adsorbent filler can continuously maintain interphase contact with the VOCs waste gas; under the saturation condition, the contact is timely disengaged, and the technical problem of difficulty in realizing continuous purifying of the VOCs waste gas under the condition of continuous production is solved.

A video projector includes a shell case, which accommodates optical components, and a cooling system, which directs ambient air toward the optical components. The cooling system includes a turbulent flow generator arranged in an intake duct. The turbulent flow generator includes a diagonal upstream surface that smoothly changes the direction of an air flow and generates a turbulent flow at the downstream side of the turbulent flow generator. Fine dust particles suspended in the turbulent flow adheres on a downstream surface of the turbulent flow generator and are removed from the air flow.

The invention discloses an ash removing device for deposited ash for boiler bellows. The ash removing device comprises ash removing plates, ash removing holes, detection tracks, detectors, and an ashcollecting device, wherein the ash removing plates are arranged below a burner in the same layer in the bellows; each ash removing plate is provided with an ash removing hole being adjustable to closeand open, and used for allowing falling down of ash; the detection tracks are used for being jointed to the side walls of the bellows and respectively extent along the length direction and the thickness direction of the dust removing plates; each detector for detecting the height of deposited ash on the upper surface of the corresponding ash removing plate is in sliding connection to the inner part of the corresponding detection track; the ash removing holes are in communication when the height of the deposed ash obtained by the corresponding detector is greater than preset height; and the ash collecting device for collecting ash falling down from the ash removing holes is arranged below the ash removing plate at the bottom of the bellows. According to the ash removing device for deposited ash for boiler bellows, the ash removing holes are used for realizing communication and disconnection of cavities of the bellows above the ash removing plates with the ash collecting device, the condition that during an ash removing operation, the ash removing device for deposited ash for boiler bellows has a large ash removing area, can be guaranteed, improvement of ventilation resistance of secondary air is also avoided, and the ash removing device has the characteristics of being high in reliability, low in energy consumption and high in feasibility.

The invention relates to the technical field of treatment of volatile organic compound waste gas and particularly relates to a spiral step fin tower for purifying VOCs waste gas. The spiral step fin tower is characterized by comprising a tower body component, a slag-discharging rotation disc component, a support roller component and a bearing platform. Through the spiral step fin tower for purifying VOCs waste gas, spiral conveying and tower reaction operation principle are effectively combined; through the adoption of spiral conveying, the continuous movement of adsorbent under the sealed condition and the advantages of large interphase contact area and high mass transfer efficiency of a tower reactor can be achieved; adsorbent filler can be in continuous interphase contact with VOCs waste gas and also can be out of contact with the VOCs waste gas in time during saturation; the technical problem of continuously purifying VOCs waste gas under the continuous production condition can be solved.

There is provided an wind direction adjusting apparatus in which an energy saving effect is obtained by restraining an increase in draft resistance, and an indoor unit of an air conditioner having the wind direction adjusting apparatus provided therein. An wind direction adjusting apparatus 200 includes a base member 40, a first wind direction plate 12 provided on the base member 40 so as to be rotatable about a reference center of rotation A, a second wind direction plate 22 provided on the first wind direction plate 12 so as to be rotatable about a coupled center of rotation B, a moving member 30 provided with the first wind direction plate 12 and the second wind direction plate 22 so as to be rotatable about a first center of rotation C and a second center of rotation D respectively, and driving means 50 configured to move the moving member 30 relatively with respect to the base member 40, and an angle formed between a first imaginary line L1 connecting the reference center of rotation A and the coupled center of rotation B and a second imaginary line L2 connecting the coupled center of rotation B and the second center of rotation D varies according to the amount of relative movement of the moving member 30.

Disclosed is a gate valve for the inside of a high-temperature furnace which is provided with: a granular sealant which is fluid between a normal temperature and 900 C; a valve casing wherein the sealant is stored at the bottom; a first duct which is connected with the valve casing and through which a gas flows from the outside toward the inside of the valve casing; a second duct which is connected with the valve casing and through which the gas flows from the inside toward the outside of the valve casing; and a valve body which lowers down to a valve-lowering position where the valve body is at least partially buried in the sealant and stops the flow of the gas from the first duct toward the second duct, and rises to a valve-rising position where the valve body is disposed above the surface of the sealant and allows the flow of the gas from the first duct toward the second duct.

To provide a cooling device decreasing turbulence of airflow of cooling air to increase the volume of the cooling air, and thereby improving the cooling performance of a radiator and reducing drive energy of a cooling fan.The cooling device of water cooled internal combustion engine E comprises: the radiator having a radiator core in which cooling water radiating heat into the cooling air flows; the cooling fan disposed downstream the radiator core to face the radiator core in a rotation center direction A3; and straightening plates disposed between the radiator core and the cooling fan in the rotation center line direction A3. The straightening plates guide the cooling air just after passing through the radiator core along the rotation center line direction A3 up to just in front of a rotation track of an upstream edges of blades of the cooling fan. Each of the straightening plates is disposed so that, in immediate downstream of a downstream end of a heat transmission tube of the radiator core, the upstream end is opposite to and is arranged along the downstream edge in the rotation center line direction A3.

The invention discloses a mining method of a gently inclined layered extremely thin ore body in a metal ore in the technical field of mining, A: stope division; B: mining standard engineering; C: cutting engineering; D: ventilation; E: ore transportation Move; F: Ground pressure management: Compared with the traditional mining method, the advantage of this mining method is that there is no need to set up a traditional ventilation patio. The traditional ventilation patio has a large ventilation resistance due to its small cross-section, and this ventilation method is directly provided by the transport roadway in the next stage. After entering the working face through multiple funnels, the polluted air is discharged from the connecting road to the transportation roadway in the upper stage, with small ventilation resistance, large air volume and good ventilation effect. In addition, it also saves the amount of excavation work in the raised shaft and reduces the mining cost; secondly, the backward ore falling adopts violent and mechanical handling, and the double working face has a large amount of ore and high work efficiency.