73results about How to "Save compressed air" patented technology

The invention discloses a mould-proof isolation powder pretreatment device for a glass film plating production line. The device comprises a roller table and a main bracket, wherein the roller table is used for conveying glass; the advancing direction of the glass is from left to right; the main bracket is connected with a brush bracket and an air collecting pipe bracket in the transverse direction from right to left in sequence; the lower ends of the brush bracket and the air collecting pipe bracket are respectively connected with a brush and an air collecting pipe; the brush and the air collecting pipe are positioned above the glass on the roller table; a first sensor and a second sensor are arranged below the glass; the first sensor is positioned at the right side of the brush; and the second sensor is positioned at the left side of the air collecting pipe. Aiming at different glass widths, the part or all opening of an electromagnetic valve is controlled through glass width signals returned by the sensors, so that the jet airflow blows the glass surface with a smallest covering area to achieve the purpose of saving compressed air.

The invention discloses a dust removal system and a controller of the dust removal system. The dust removal system and the controller of the dust removal system detect the temperature and pressure of dust gas in a production process room at an inlet of a bag-type dust remover, and the pressure of the gas at an outlet of the bag-type dust remover, and the pressure or the temperature of the dust gas at the inlet or a work mode of a control system in the process of production is set as a set value to control a frequency converter to achieve control of the rotation speed of a draught fan. The controller can be connected with an online or off-line air purification detector to achieve closed-loop control of the air speed. The controller controls opening and closing of an impulse dust removal valve through differential pressure at the inlet and the outlet of the dust removal gas and the time of variation of the differential pressure, and achieves high-intelligent control modes of the bag-type dust removal, such as on line, off line, chamber division and cascade connection. The dust removal system and the controller of the dust removal system have the advantages of integration of dust removal series, modularization of the internal structure, diversification of functions, intelligentization of the control modes and optimization of cost performance, thereby being suitable for various occasions.

The invention discloses a process for producing sodium fluosilicate by using sodium sulfate, which comprises the following steps: (1) subjecting the solution of hydrofluorosilicic acid and sodium sulfate with the mol ratio of 1:1.0 to 1.2 to reaction and crystallization; (2) adding solid sodium sulfate to the reaction solution for salt dissolution till the mass percent concentration of the sodium sulfate reaches 15 to 20%; (3) separating the sodium fluosilicate; (4) subjecting the mother solution slating liquid to a circulated process of salt dissolution and reaction. The method utilizes the water of the hydrofluorosilicic acid, saves a large part of water for the salt dissolution and reduces the production of sewage; the salt dissolution by the mother solution is to continue to add excess amount of salt so as to continue to enlarge the size of hydrofluorosilicic acid crystals and increase the precipitation quantity. The utilization rate of the hydrofluorosilicic acid can reach to above 96%, which is far higher than the level of around 80% by prior solution method.

The invention discloses an oil-gas two-phase jet-type lubricating and cooling system, comprising a pressure gas supply device, a pressure oil supply device, a pure oil nozzle and N gas-oil nozzles, wherein the pressure gas supply device is connected with the gas-oil nozzles through an airflow pipeline; the pressure oil supply device is connected with both the pure oil nozzle and the gas-oil nozzles by an oil pipeline; each gas-oil nozzle comprises an oil jet pipe and an airflow jet pipe coaxially arranged outside the oil jet pipe; a shrinkage oil nozzle is arranged at the front end of the oil jet pipe; the gap between the internal wall of the airflow jet pipe and the external wall of the oil jet pipe forms an airflow passage; the front end of the airflow jet pipe is provided with an annular gas nozzle; oil-gas binary oil-in-gas concentric jet is formed by the continuous column oil jet sprayed from the shrinkage oil nozzle and the annular gas jet sprayed from the annular gas nozzle; the oil is not mixed with the gas; when the system is working, oil molecules on the surface of headed materials and the contact surface of mould and the headed materials have stronger permeability so as to lubricate and cool more sufficiently.

The invention relates to a pressure difference-timing sequence mixed control method for a bag type dust collector. The method includes S1) a step of setting pressure difference dust collecting work conditions comprising a pressure difference upper limit value PH and a pressure difference lower limit value PL with the PL being less than the PH, and setting timing sequence dust collecting work conditions comprising a timing sequence cycling time T5, S2) a step of circulating dust collecting wait, allowing a timer T to be started from zero and detecting the pressure difference P between upper and lower boxes of the dust collector, and S3) a step of, when the pressure difference P reaches the pressure difference upper limit value PH, controlling Q electromagnetic pulse valves to perform a plurality of times of circulated dust clearing under work parameters for pressure difference dust collecting until the pressure difference P is not more than the pressure difference lower limit value PL, and returning to the step (S2); and when the pressure difference P does not reach the pressure difference upper limit value PH and the T from the timer is larger than the timing sequence cycling time T5, controlling the Q electromagnetic pulse valves to perform one time of circulated dust clearing under work parameters for timing sequence dust collecting, and returning to the step (S2). Compared with the prior art, the method is advantaged by being capable of pressure difference control, energy-saving and efficient, and the method can improve stability of circulated dust clearing for the bag type dust collector and can prolong the overall lifetime of filter bags.

The invention relates to a wastewater treatment process, in particular to a coking wastewater treatment process and coking wastewater treatment equipment. The process comprises the following steps: a, isolating oil floating on the surface of coking wastewater through horizontal flow; b, removing emulsive tar oil and part of COD and BOD5 in the coking wastewater by using a pressure dissolved-air flotation; c, balancing water quality and quantity of the treated coking wastewater; d, converting refractory polyaromatic hydrocarbons and heterocyclic compounds in the wastewater into simple low molecular organic acid compounds; e, retaining sludge and reflowing the wastewater; f, performing biological degradation of the organic matters in the wastewater and the removal of nitrogen and phosphorus from the wastewater and treating the wastewater by using a BSBR method; and g, finally, recovering the treated water. The process has the advantages of energy and space conservation, excellent wastewater treatment effect and the like.

The invention relates to an automatic adjustable laval pipe, which can automatically change the pipe diameter of the laval pipe, realize adjustment of the required air quantity according to the characteristics of materials, provide stable air flow under the condition of air pressure fluctuation, and is suitable for a material conveying system which requires regular adjustment of the air quantity. The automatic adjustable laval pipe mainly comprises an air inlet pipe, a regulating stem and a fixed laval pipe, wherein the air inlet pipe and the fixed laval pipe are fixedly connected with each other; the regulating stem runs through the air inlet pipe; the outer end part of the regulating stem is connected with an automatic pressure regulator, and the inner end part of the regulating stem is extended into an inlet of the fixed laval pipe; a cross section of the inlet is provided with a funnel-shaped curved structure; a first section of curve is a section of circular arc of which the circle center is on an inlet interface of the fixed laval pipe; a third section of curve is a section of circular arc of which the circle center is on a minimum cross section on a throat section of the fixed laval pipe; and a second section of curve is a common tangent line which connects the first section of curve and the third section of curve.

The invention relates to an air throttle, a testing device and a testing method, and provides a crust breaking cylinder air throttle and the testing device and the testing method. The crust breaking cylinder air throttle comprises a pressure-regulating valve, an air supply pipe, an external guide pipe, a two-position three-way solenoid valve and a corresponded power supply control line of the two-position three-way solenoid valve; the testing device comprises a main gas path and a branch gas path, a three-way B, a ball valve C and a three-way D are arranged on the main gas path along the forward flow direction of the gas path in order; the branch gas path comprises two ball valves, the crust breaking cylinder air throttle, a flowmeter and two compression gauges; and the testing method comprises an gas path leakage point test of the testing device. The crust breaking cylinder air throttle outputs the pressure of a crust breaking cylinder by two grades according to the requirement, the gas usage efficiency of the crust breaking cylinder can be greatly enhanced; the provided testing device can be conveniently connected to an gas feed branch pipe of each electrolytic aluminium groove crust breaking cylinder in parallel; and the testing method can measure and calculate the gas capacity after using the air throttle by the crust breaking cylinder.

A machine has a frame structure for moving a machine head in one or more spatial directions. The frame structure comprises an actuator and an air bearing for moving the head. The machine also comprises a compressed air feed connected to the air bearing for providing a compressed air flow. A restrictor defines the compressed air flow to the air bearing. The machine has a first operating state, in which a high compressed air flow is defined and in which the actuator can be actuated. The machine has a second operating state, in which a compressed air flow lower than the high compressed air flow is defined. In the second operating state, the actuator is secured against actuation from a closed-loop position controller, while the closed-loop position controller is maintained in operation.

The invention discloses a pressure dressing device for breast surgery. The pressure dressing device for breast surgery comprises a waistcoat type body and hemispheric air bags which are arranged on the body and can cover left and right breasts respectively, wherein each air bag is composed of a plurality of inflating units which are not communicated with one another, and each inflating unit is provided with an inflating inlet; as each air bag is divided into a plurality of units, the inflating unit corresponding to a wound can be inflated independently, thus the compressed air is saved and the pressurizing effect can be ensured; in addition, a rigid interlayer is arranged on the outer surface of each air bag, so that the air pressure in the air bag is ensured to be applied to the wound position and the pressurizing effect is better.

The invention relates to a material picking device which comprises a rotary disc and a feeding barrel. Multiple counter bored holes are formed in the rotary disc and concentrically distributed in the upper surface of the rotary disc annularly. Air holes are formed in the bottoms of the counter bored holes. A rotary shaft is fixedly connected with the circle center of the rotary disc. The feeding barrel is of a cylindrical structure with a groove formed in the two ends. A lower outlet of the feeding barrel is exactly opposite to the corresponding counter bored hole. Cylindrical materials of different sizes and different structures can be picked up through the designed feeding barrel and too large materials cannot enter the feeding barrel. The condition in the feeding barrel can be conveniently observed through the axial groove of the feeding barrel. Air of constant force is blown through the air holes so as to blow the materials out, the distances of the falling points of the materials of different weights are different, and therefore the qualified materials are picked up. Therefore, more time and labor are saved for picking up the materials mechanically instead of manually and the cost reduction effect can be achieved.

The invention relates to a graywater contamination collecting system for a vehicle, a control method and a vehicle. The graywater contamination collecting system for the vehicle comprises a graywaterdrainage device, a graywater temporary storage box, a water closet, a water tank, a graywater contamination box, a flushing switch and an electric control unit; the water tank is connected with a water flushing pipe of the water closet through a water supply pipeline; a booster water pump, an energy storage tank and a water flushing electromagnetic valve are connected to the water flushing pipe inseries in sequence, wherein the booster water pump is used for increasing the water flushing pressure; the energy storage tank is used for temporarily storing pressure water; and the water flushing electromagnetic valve is used for controlling the closing and opening of the water flushing pipe; the bottom of the water closet is connected with the graywater contamination box through a blow-off pipe; the graywater drainage device is connected with the graywater temporary storage box through a first water drainage pipe; the graywater temporary storage box is connected with the graywater contamination box through a second water drainage pipe; a first electric gate valve is arranged on the blow-off pipe; a second electric gate valve is connected to the second water drainage pipe in series; anelectric vacuum pump used for keeping a vacuum state of the graywater contamination box is connected to the graywater contamination box; and the flushing switch, the water flushing electromagnetic valve, the first electric gate valve, the second electric gate valve, the booster water pump and the electric vacuum pump are connected with the electric control unit. The graywater contamination collecting system for the vehicle has the characteristics of less system equipment, simple and compact structure, low fault rate, guaranteed water flushing effect and the like.

The invention discloses a full-automatic back-sealing multi-row particle packaging machine compound punching and cutting device which comprises two standing seats and punching and cutting seats. A screw rod is vertically installed on each standing seat, the two ends of the punching and cutting seats are slidably sleeved on the screw rods, nuts are arranged on the position, at the upper and lower ends of the punching and cutting seats, on the screw rods in a screwed mode correspondingly, and the nuts are used for adjusting and fixing the upper and lower positions of the punching and cutting seats. A plurality of concave dies are horizontally installed on the punching and cutting seats in an uniform distributed mode, and a plurality of plunger chips are arranged on the concave dies in a fitted mode. A row arranging device is arranged above the concave dies, a cooling device is arranged above the row arranging device, a waste collection device is arranged below the concave dies, and an anti-clamping bag device is arranged below the plunger chips. According to the technical scheme, the full-automatic back-sealing multi-row particle packaging machine compound punching and cutting devicehas the advantages of non-clamping bag, one-time cutting, punching easy-to-tear openings and fillets, stable punching and cutting performances, small punching and cutting force, saving compressed air, small impact, stable cutting process, high efficiency, and uniform and beautiful appearance of finished packaging bags after punching and cutting.

The invention relates to a novel air saving technique and aims to provide an air saving device and an air supply method for a crust breaking cylinder. An air supply pipe of the device comprises an air inlet pipe and an air outlet pipe; the device also comprises a two-position three-way electromagnetic valve, an external pilot pipe, a pressure regulating valve and a time relay, wherein the two-position three-way electromagnetic valve is provided with a hole P, a hole A and a hole R; the air outlet pipe is connected with the hole A, while the air inlet pipe is connected to the hole P; the pressure regulating valve is connected to the hole R and the air inlet pipe through pipelines, respectively; the external pilot pipe is connected to the two-position three-way electromagnetic valve and the air inlet pipe, respectively. The air saving device for the crust breaking cylinder, provided by the invention, is capable of improving the air utilization efficiency of the crust breaking cylinder without changing the crust breaking process requirements of the original crush breaking cylinder, and also saving compressed air and achieving the purposes of saving energy and reducing consumption; the air saving device can be connected in parallel to an air supply branch pipe of each electrolytic aluminium cell crust breaking cylinder simply and conveniently.

The invention discloses an embedded electric-bag composite dust collector with fore electric fields and horizontally arranged filter bags. The filter bags are horizontally arranged in a filter bag dust collection area; two ends, i.e., two points of the filter bags are horizontally fixed and suspended; the filter bags and the adjacent electric fields are alternately arranged. The embedded electric-bag composite dust collector provided by the invention is simple in structure design and outstanding in using effect; a backward electric bag composite area is fixedly positioned with two end points through the horizontally arranged filter bags, so that the positioning accuracy is improved, and the collision between the filter bags is avoided; the electric fields and the filter bags are alternately arranged, and a backward electric field dust collection area can capture dust which cannot fall into an ash bucket during an adjacent filter bag ash removal process, so that the problem of reentrainment of dust brought by an upflow can be effectively avoided, an ash removal effect is improved, meanwhile, the length of each filter bag is greatly prolonged, the filter bags can compactly fill the dust collector space, the electric fields and the filter bags are mutually coupled fully, the occupied area of the dust collector is reduced, the injection of compressed air is reduced, a pulse valve and an injection pipe are saved, and the cost and the operation and maintenance cost of the dust collector are reduced.

The invention discloses a vacuum generating device of a wafer chuck. The device comprises a vacuum generator and a compressed air pipeline which are connected by a pipeline, wherein the vacuum generator provides vacuum for the wafer chuck. The device further comprises an air valve which is arranged between the vacuum generator and the compressed air pipeline. A control end of the air valve is connected with a gas supply pipeline of a working valve of an external wafer chuck through a pipeline. When the gas supply pipeline supplies compressed air to the working valve, a part of the compressed air is separated to enter the control end of the air valve so that the air valve is switched on and the compressed air can be input to the vacuum generator. The wafer chuck and the vacuum generator are ensured to be synchronous; and when the vacuum generator does not need to work, a large amount of compressed air is saved, the production cost is saved, and the economic efficiency is improved.

A device for vacuum generation is proposed, said device comprising a valve device (3) having a valve member (11) that can be switched between a base position and a working position. The valve member (11) is associated with two oppositely oriented and differently sized actuating surfaces (54, 55), which can each be subjected to control air, controlled by an electro-pneumatic pilot control valve (6, 7). Using spring means (44), the valve member (11) is supported with respect to the larger actuating surface (55). By simultaneously actuating both pilot control valves (6, 7), the spring means (44) are tensioned in the base position and during subsequent power failure switch the valve member (11) back into the working position.

The invention belongs to the field of pneumatic system energy saving, and realizes a turbine type gas magnetic engine. Permanent magnets are respectively and additionally added on a stator and a rotor of a traditional pneumatic motor, the principle that different poles of the permanent magnets are mutually attracted, identical poles of the permanent magnets are mutually repelled is utilized, and a special mechanical structure and magnet layout is designed, so the single side of each blade receives the suction force of the stator permanent magnet, the anticlockwise rotating motive power is generated. In the blade dead point position, a gas distribution mechanism can be utilized for generating strong blowing force, so blades can fast rotate to pass the dead point. Compared with the traditional pneumatic motor, the consumption of compressed air is reduced, and the rotating motive power can be continuously obtained.

The invention discloses a vacuum extraction powder pump control system. The vacuum extraction powder pump control system comprises two or more powder conveying devices which are arranged in parallel.Each powder conveying device is provided with a powder cavity. Each powder cavity is provided with a feeding opening and a discharging opening. Each feeding opening is provided with a first opening and closing valve, and each discharging opening is provided with a second opening and closing valve, so that each feeding opening and each discharging opening are controlled to be opened and closed. Each powder cavity is connected with an air supply pipe and an air extraction pipe. Connection positions of air inlet pipes and the air extraction pipes are arranged to be close to the feeding openings and the discharging openings. The vacuum extraction powder pump control system is provided with the multiple powder conveying devices; in the working process, the multiple powder conveying devices canbe arranged to convey powder sequentially; powder conveying efficiency is improved; compressed air mingled in the powder conveying process is reduced; the powder conveying density is increased; production efficiency is improved; and the vacuum extraction powder pump control system has the cleaning function and is convenient to use and high in practicability.

The invention relates to an energy-saving large casting cooling device comprising an air compressor 1, a cooling dryer 2, a compressed air pipeline 3, an air storage tank 4, a venturi blower 5, a pressure adjusting valve 6, a pneumatic control valve 7, a temperature transmitter 8 and an electric control system 9. The device is characterized in that the venturi blower 5 produces large air flow to cool large castings. The device has the advantages that the relevant component action relevance of the system controlling process is implemented, and actions are executed automatically; the venturi blower serves as a cooling device, compressed air is saved greatly, and operation cost is reduced.