46results about How to "Reduce ventilation energy consumption" patented technology

The invention relates to a self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill which comprises a hydraulic transmission system, an intelligent control system, a stand (1), a transmission device (2) and a speed reducing mechanism (6), wherein the transmission device (2) and the speed reducing mechanism (6) are arranged on the stand (1); an output end of the speed reducing mechanism (6) is provided with a grinding table device (15); an air ring (8) is arranged at the excircle of the grinding table device (15) and at an upper opening of an air inlet duct (7) communicated with an air inlet pipe (5); a plurality of grinding roller devices (10) are arranged above the grinding table device (15) by a mill door arranged on a lower shell (11); a rocker arm (9) is arranged at the outer ends of the grinding roller devices (10); one ends of a pressurizing oil cylinder (3) and a magnetic fluid damping adjustment device (4) are respectively connected with the rocker arm (9), and the other ends of the pressurizing oil cylinder (3) and the magnetic liquid damping adjustment device (4) are respectively connected with the stand (1); the upper end of a middle shell (14) is provided with a powder concentrator (12). The self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill has the advantages that the extrusion energy and the impact energy are efficiently utilized, the vibration intensity of a grinding host machine can be reduced, the grinding efficiency is improved, the grinding energy consumption is reduced, the stability of equipment is improved, the service life of the equipment is prolonged, and the running cost is lowered.

The invention discloses a composite ventilation cooling system of a main transformer room, including the main transformer room, an integrated oil-immersed transformer located in the center of the maintransformer roomroom, an air inlet system located below the integrated oil-immersed transformer and near the bottom of the main transformer room, an exhaust system located at the top of the main transformer room and a control system for intelligent control, the integrated oil-immersed transformer comprises a transformer body and radiators located on both sides of the transformer body, an air inlet is arranged at the bottom of one side wall of the main transformer room and an air outlet is arranged at the top of the main transformer room. The invention makes full use of external environmentalconditions to strengthen a ventilation effect, According to the operation of transformer and indoor ventilation condition, the ventilation mode can be adjusted dynamically, the indoor air flow can flow from bottom to top orderly, the utilization efficiency of cooling air can be improved, the service time of a mechanical fan is reduced, and the ventilation energy consumption can be reduced while the ventilation heat exchange effect of the transformer room can be improved.

The invention belongs to the field of agriculture facilities, and relates to a closed henhouse ventilating system and an air flow organization method. The system includes a longitudinal wall (1), a mountain wall (2), hen cages (3), a wet curtain cooling device (4) and a blower (5); the hen cages (3) are in parallel to the longitudinal wall (1), and channels are formed between different lines of hen cages (3) or between the hen cage (3) at the outermost side and the longitudinal wall (1); the blower (5) is installed on the mountain wall (2) at one end, and an air inlet dual-leaf guide flow plate (7) and a compartment (6) are respectively arranged on the mountain wall (2) at the other end and the outside; the wet curtain cooling device (4) is installed on the wall body of the compartment (6) except for the mountain wall (2); two blades of the air inlet dual-leaf guide flow plate (7) are opened towards the hen cages, and vertically arranged and aligned to every channel, and its height is equal to that of the hen cages (3). The closed henhouse ventilating system can reduce the resistance to air flow by the hen cages, effectively reduce the temperature difference between the air inlet and the exhaust opening; moreover, the air flow organization is orderly and evenly distributed, and the venting and cooling efficiency is high.

The invention discloses a self-temperature-regulation heat recovery type ventilation system which is installed on a building outer wall. At least one set of vent holes are formed in the building outer wall. The ventilation system comprises at least one set of temperature regulation walls made of temperature regulation materials, and ventilators arranged at the vent holes, the temperature regulation walls are arranged on the sides, facing indoors, of the vent holes, and the ventilators are arranged in the middles of the vent holes. In the self-temperature-regulation heat recovery type ventilation system, the temperature regulation materials are led into a building envelope, heat storage and heat release are conducted through the temperature regulation walls so that heat or cold in exhaust air can be recovered when indoor ventilation is conducted, the indoor air quality can be improved, the influences of outdoor temperature fluctuation can be effectively delayed and reduced, building heating or air conditioning can not be used or less used, the capacity of air conditioner devices can be reduced, and the building energy consumption can be lowered.

The invention discloses a jetting air cooler. A spray-propulsion air draft device of a lower spray nozzle and a lower air draft blade, a water-drenching sieve plate and a bottom water tank are arranged from top to bottom in the cooler body of the jetting air cooler. An air inlet at the top of the cooler body is provided with a demister; an air outlet is formed on the lateral wall of the cooler body at the upper part of the water tank; a cold air duct is extended from the air outlet; a water absorption type baffle board demister is arranged in the cold air duct; and the air draft device can also be provided with a water makeup pipe, a water outlet pipe which is connected with a water pump, etc. The low-temperature water-circulation spray is adopted by a spraying device to cool hot air into wet cold air which is further demisted into dry cold air. By adopting the normal-temperature water spray at about 20 DEG C with the difference of only 1-2 DEG C to the leaving air temperature, cold air can be obtained in summer, and warm air can be obtained in winter. According to experiments, when the water spray rate is 40m<3> / h, the pressure is 0.08 MPa, the air volume is above 2*10<4>m<3> / h, the power is only 1.4 KW.h, the water spray temperature is 24 DEG C, the atmospheric wet bulb temperature is 35 DEG C, the atmospheric dry bulb temperature is 25 DEG C, and the cold air temperature is 25 DEG C, and the refrigeration coefficient of the jetting air cooler is as high as 39.8 and is more than 10 times that of the prior air conditioner. Since the air temperature, the water temperature and the wet bulb temperature are all close to each other, the cooling water is required to be supplied in only more than 10 days which are the hottest days in one year. The jetting air cooler is suitable for low-humidity cooling and ventilation, and is an ideal water air conditioning device.

The invention discloses a method for judging a key influence area of natural air pressure of a deep horizontal mine. The method comprises the following steps: a, analyzing sensitivity of branch air quantity to natural air pressure; b, judging a key influence area of the natural air pressure according to the tested sensitivity; b1, testing the sensitivity of the natural air pressure; b2, performing data processing; b3, analyzing the sensitivity of the natural air pressure; and b4, confirming judgment principles of the key influence area of the natural air pressure. The method is based on basic data which are tested on site and theoretical research on the sensitivity of a branch air path, and the distribution range of the key influence area of the natural air pressure is obtained by using a qualitative and quantitative analysis method; on the basis of an inverted ventilation generation reason, conditions of possible ventilation stop or even inverted ventilation in the area can be obtained; and by adopting the method, the natural air pressure of the deep mine can be reasonably controlled and utilized, the ventilation energy consumption is reduced, great significances in improving the operation stability and the economical efficiency of a mine ventilation system are achieved, and moreover, certain popularization values and application prospects can be achieved.

A mine air quality composite index and ventilation energy-saving linkage system comprises a carbon monoxide detector, a hydrogen sulfide transmitter, a sulfur dioxide detector, a nitrogen dioxide transmitter, a dust detector, a programmable logic controller (PLC), a main fan, a main fan frequency converter, an industrial computer and a local area network, wherein the carbon monoxide detector, the hydrogen sulfide transmitter, the sulfur dioxide detector, the nitrogen dioxide transmitter and the dust detector are connected with the input end of the PLC, the output end of the PLC is connected with the main fan frequency converter, the main fan frequency converter is connected with the main fan, the PLC is bidirectionally connected with the industrial computer, and the industrial computer is connected with the local area network. according to the invention, a ventilation effect of the underground mining surface (or main working middle section) in a nonferrous mine is improved, and the underground working environment of workers is improved. A mine ventilation system time-interval seasonal frequency-conversion energy-saving control system is established to reduce the ventilation energy consumption of an underground ventilation system in the nonferrous metal mine by more than 14%.

The invention provides a one-storey barn heat dissipation temperature control system based on heat pipe technology. The one-storey barn heat dissipation temperature control system includes an along-wall heat pipe (5), a first air channel (6), a second air channel (8), a first air blower (7), a second air blower (9) and a top layer heat pipe (10). The along-wall heat pipe (5) is arranged on the inner side of a side face wall of a one-storey barn (1). The upper end of the along-wall heat pipe (5) is disposed in the first air channel (6) while the lower end of the along-wall heat pipe (5) is disposed in a grain pile below a grain line (3) and extends to the bottom of the grain pile. The top layer heat pipe (10) is arranged at the top part of the one-storey barn (1). The upper end of the top layer heat pipe (10) is disposed in the second air channel (8) while the lower end of the top layer heat pipe (10) is disposed in the grain pile below the grain line (3). The first air channel (6) and the second air channel (8) are disposed above the grain line (3) and are both communicated with the external environment. An end of the first air channel (6) is provided with the first blower (7). An end of the second air channel (8) is provided with the second blower (9). The system improves a hot surface effect of large barns and is low in energy consumption and low in pollution.

The invention discloses a multi-stage station ventilation technical system of a mine. A level-I station (1) is arranged in a main air inlet alley; a level-II station (2) is arranged in an air inlet courtyard connection ally; a level-III station (3) is arranged in an air return courtyard connection ally; a level-IV station (4) is arranged in a main air return ally; a plurality of stages (more than or equal to 3) of the stations are connected in series and in parallel; ventilation stations of the same state are connected in parallel; different stages of stations are connected in series; a plurality of fans are connected in series and in parallel in the ventilation stations; the number of stages and the positions of the stations are determined; the types of the fans are selected, and the air volumes of the fans are adjusted; a mine ground main monitoring room (12) is arranged on the ground of the mine; and a multi-stage station remote concentrated monitoring system and an underwell atmosphere environment on-line monitoring system are constructed. Constant-pressure ventilation of each ventilation network section of the mine can be realized, and air leakage is reduced; a plurality of stages of underwell stations can be started and stopped remotely; the frequencies and speeds of the fans can be converted and adjusted, and system air return is realized; parameters such as running states of the fans, air volume and air pressure of the fans, temperature of a motor bearing and power factors are monitored in real time; and an underwell ventilation environment can be monitored in real time and on line.

The invention discloses a method for preheating mine inlet air through gob and waste roadway earth temperature. The method includes the steps that the total effective preheating area of a waste roadway and a gob which are used for preheating is counted, the total amount of air needing to be preheated by the gob and the waste roadway is calculated, and an earth temperature preheating system implementation scheme is designed; the earth temperature preheating system implementation scheme comprises selection of an earth temperature preheating system ventilating line and an earth temperature preheating system ventilator, regulation and control over air amount of an earth temperature preheating system and effect evaluation of the earth temperature preheating system. Mine natural resources are sufficiently utilized, and therefore system energy consumption is lowered. By adjusting an air inlet line of a deep gob and using earth temperature of the shallow part gob and the waste roadway for naturally increasing the temperature of a low-temperature air inlet source conveyed to the deep gob, loads of heat generating equipment and heating equipment in a mine air conditioning temperature increase technology are reduced greatly, and ventilating energy consumption and heat energy consumption are lowered.

The invention discloses a technique for cooling a deep mining area by using the ground temperature of a shallow goaf and a waste roadway. An air intake fan station (9) is arranged outside an air intake port of a deep operating middle section (5); a return fan station (10) is arranged outside an air outlet port of the deep operating middle section (5); the air intake fan station (9) is communicated with a deep downcast shaft (4); the return fan station (10)is communicated with an air return shaft (6); pre-cooling fans (3) are arranged at all the exits of the shallow goaf and the waste roadway (2); and an air door (7) is arranged on a natural ventilation air passage (8) shared by the shallow goaf and the waste roadway (2). According to the invention, an air flow circuit and the pre-cooling fans (3) are adopted to adjust the downcast air flow, and through the technique, the high-temperature air flow can be totally or partially pre-cooled in summer so as to reduce the wind enthalpy which enters the deep high-temperature area and to improve the heat extraction and cooling abilities of the system. In winter, the pre-cooling fans are turned off and the heat accumulated in summer is expelled through natural ventilation. Therefore, the technique realizes alternating multiple heat balance and use in winter and summer in a mine.

An aerobic garbage disposal device setting draught fan beside garbage heap and its control method comprise the following steps: connecting ventilating duct with air outlet of fan; setting air outlet of fan in garbage heap; equipping air content measuring apparatus and temperature measuring apparatus in garbage heap; sending measurement result of measuring instrument into data input pin of controller; control pin of said controller connecting with switch of fan. Said air content measuring apparatus is oxygen measurement set or carbon dioxide measurement set. The invention reduces bad odour from garbage heap, accelerates biochemical aerobic reaction, decreases secondary garbage pollution, increases heating value of garbage, decreases energy consumption of burning plant and decreases cost of garbage disposal system.

The invention discloses a method for automatically converting a down-hole main and auxiliary machine ventilating system into a multi-stage machine station ventilating system. The method includes the following steps that 1, according to mine capacity planning, combined with an exploitation depth, a whole production stage is divided into two stages of an easy ventilating stage and a difficult ventilating stage; 2, simulation calculating is respectively conducted on ventilating networks of the easy ventilating stage and the difficult ventilating stage of a mine well; 3, the main and auxiliary fanventilating system is established when ventilating is easy; and 4, the multi-stage machine station ventilating system is established when ventilating is difficult. According to the method for automatically converting the down-hole main and auxiliary machine ventilating system into the multi-stage machine station ventilating system, the advantages that main and auxiliary fan ventilating is simplein management, and multi-stage machine station ventilating is low in energy consumption are fully combined, down-hole main and auxiliary fan ventilating is adopted in the easy ventilating stage, investment of engineering and machine equipment is saved, land acquisition is not needed, and ventilating management is convenient; a main machine of the easy ventilating stage is used as a II-type machinestation draught fan to relay during the difficult ventilating stage, the operation cost is low, and the effect of energy conservation is obvious; and the difficult problem that the difference of thewind pressure difference between the adjacent stages of the mine well ventilating systems is large is solved.

Mine air quality comprehensive index and ventilation energy-saving linkage system, including carbon monoxide detectors, hydrogen sulfide transmitters, sulfur dioxide detectors, nitrogen dioxide transmitters, dust detectors, PLC, main fan and main fan inverter, industrial computer and Local area network, the carbon monoxide detector, hydrogen sulfide transmitter, sulfur dioxide detector, nitrogen dioxide transmitter and dust detector are all connected to the PLC input terminal, the PLC output terminal is connected to the main fan frequency converter, and the main fan frequency conversion The controller is connected to the main fan, the PLC is bidirectionally connected to the industrial computer, and the industrial computer is connected to the local area network. The invention improves the ventilation effect of the underground mining face (or the middle section of the main operation) of the non-ferrous mine, and improves the working environment of underground workers. The mine ventilation system is divided into time and season frequency conversion energy-saving control system, which reduces the ventilation energy consumption of the underground ventilation system of non-ferrous metal mines by more than 14%.

The invention discloses a giant energy heat collection plate, a heating and refrigeration system adopting the heat collection plate and a control method. The giant energy heat collection plate is provided with a light transmitting layer, a heat collection layer and a device layer in sequence from top to bottom; the light transmitting layer is made of a polycarbonate material or a high transmittance glass material; the heat collection layer is of a honeycomb porous structure made of an iron material or an aluminium material; and the surface of the heat collection layer is coated with a high temperature resistant coating by adopting a sputtering technology. The light transmitting layer is made of the polycarbonate material, insolation easily penetrates through the light transmitting layer, escaping of far-infrared radiation converted from sun shining on the heat collection plate is blocked at high efficiency, the heat collection effect is enhanced, and a good thermal insulation effect isbetter. The heat collection layer is made of iron or aluminium, the insolation is easily absorbed, heat is dissipated to air well, the insolation energy is converted at higher efficiency, and the energy converting efficiency of the heat collection plate is improved.

The invention provides an adjustable pressurization type ventilation device. The adjustable pressurization type ventilation device comprises an air bin, an air inlet is formed in one end of the air bin, and an air outlet is formed in the other end of the air bin; a pressurizing plate is arranged in the air bin in a sealed and sliding mode and divides the air bin into an air inlet area and a pressurizing area, and air inlet holes are formed in the pressurizing plate; a telescopic air inlet pipe is arranged in the air inlet area, one end of the telescopic air inlet pipe is connected with the air inlet of the air bin, and the other end of the telescopic air inlet pipe is connected with the air inlet holes of the pressurizing plate; and a pressurizing plate driving mechanism is connected with the pressurizing plate. According to the adjustable pressurization type ventilation device, the pressurizing plate is arranged in the air bin, the pressurizing plate and the air bin are combined to form the mechanical pressurizing air bin, when the pressurizing plate driving mechanism is used for driving the pressurizing plate to slide in the air bin, large pressure difference can be formed between an air flow in the air bin and air pressure at an air supply point after the air flow is compressed, fresh air in the air bin can be stably conveyed to the air supply point under the action of the pressure difference, waste gas at the air supply point is extruded out of a tunnel along the space in the tunnel, the ventilation effect is good, and energy consumption is low.

The cold-proof adjusting type combined air valve for subway ventilation in the severe cold area is arranged in a piston air duct, an exhaust duct and a fresh air duct of a subway and comprises a plurality of valve body modules, two sets of actuators and a transmission mechanism, each valve body module comprises a valve body frame and two layers of single valve plates, each valve body frame is a rectangular frame, and the valve body frames are arranged in the valve body frames. The two layers of single valve plates form a double-layer valve body cavity in the middle of the valve body module, and a plurality of actuators and transmission mechanisms are arranged on the two sides of the double-layer multi-cavity combined valve body respectively. Therefore, the adjusting performance is high, adjusting under the small-air-volume working condition is closer to the linear adjusting characteristic, the occupied area is small, the appropriate fresh air volume is provided for green energy-saving products in winter, and the purposes of saving ventilation energy consumption and improving the comfort level in the station are achieved; the sealing effect is good due to the double-layer design and the multi-cavity design, and the electric heat preservation energy consumption of subway stations and intervals in winter in severe cold areas is reduced; in summer, entering of outdoor high-temperature air is reduced, and the comfort level in the station is improved.

The invention belongs to the field of agriculture facilities, and relates to a closed henhouse ventilating system and an air flow organization method. The system includes a longitudinal wall (1), a mountain wall (2), hen cages (3), a wet curtain cooling device (4) and a blower (5); the hen cages (3) are in parallel to the longitudinal wall (1), and channels are formed between different lines of hen cages (3) or between the hen cage (3) at the outermost side and the longitudinal wall (1); the blower (5) is installed on the mountain wall (2) at one end, and an air inlet dual-leaf guide flow plate (7) and a compartment (6) are respectively arranged on the mountain wall (2) at the other end and the outside; the wet curtain cooling device (4) is installed on the wall body of the compartment (6) except for the mountain wall (2); two blades of the air inlet dual-leaf guide flow plate (7) are opened towards the hen cages, and vertically arranged and aligned to every channel, and its height is equal to that of the hen cages (3). The closed henhouse ventilating system can reduce the resistance to air flow by the hen cages, effectively reduce the temperature difference between the air inlet and the exhaust opening; moreover, the air flow organization is orderly and evenly distributed, and the venting and cooling efficiency is high.