Apparatus for cleaning boiler heating surfaces
(57) Abstract:The invention relates to a power system and can be used in devices for cleaning boiler heating surfaces from sediments. The device includes pipelines to supply a cleaning agent, the cleaning apparatus with retractable pipe and drives its reciprocating and rotational motions, at least one sensor overload actuators associated with the engine control system drive reciprocating motion and the possibility of its reversal when an overload of the actuator, and at least one of the actuators equipped with safety slipping clutch and sensor overload of actuators associated with a slipping clutch and is configured to check its operation. This embodiment provides improved reliability protection purifying apparatus from damage when malfunctions. 2 Il. The invention relates to a power system and can be used in devices for cleaning boiler heating surfaces from deposits.A device for water purification boiler heating surfaces containing piping for water supply, obryvochnye apparatus is of ibodov, associated with the engine control system drive reciprocating movement and the possibility of its reversal when an overload of the drive due to a malfunction of the apparatus (AAT. mon. N 1464031, M CL F 28 G 1/16, 1986)
In this device the sensors overload drives made in the form of sensors current overload of motors and associated with the control system, to avoid tripping on inrush current overload through the element time delay.When the disruption of the normal operation signal overload is delayed in the same way as during normal start-up of drives, i.e. in pre-setting the reversing drive is delayed.In addition, even when engine is off, the inertia moment from him continues to act on the drive.Thus, in the known device is not securely protected from accidents.Especially not provided reliable protection when using this system in steam cleaning devices, where the devices are used over a high speed reciprocating movement of the coolant pipe.Such a system also does not allow to use the emer, for fast-motion or to increase traction, the need may arise, for example, when using klubokawiarnia of the steam blow device to avoid overheating coolant pipe and its stuck in the boiler as a result of deformation.The aim of the invention is to increase the reliability of protection purifying apparatus from damage when the violation of his normal work.The goal is achieved in that the device for cleaning boiler heating surfaces containing pipelines to supply a cleaning agent, the cleaning apparatus with retractable pipe and drives its reciprocating and rotational motions, at least one sensor overload actuators associated with the engine control system drive reciprocating motion and with the possibility of reversing overload drives, unlike the prototype, at least one of the actuators equipped with safety slipping clutch and sensor overload of the actuator is connected by a slipping clutch and is configured to check its operation.When an overload of the actuator as a result of violations of normal operation, for example, as a result of uticaria retractable TVoD, simultaneously, the sensor overload detecting actuation of the clutch, and sends a signal to the engine control system drive reciprocating motion, which reverses the motor.In addition, for example, when used in the drive of the reciprocating motion of the engine with switchable pairs of poles of the supply of the drive friction clutch and registering its activation sensor allows you to change the operation mode of the actuator, for example, by switching pairs of poles of the motor control system.The friction clutch may be provided with any of the actuators or both of the drive.When using the combined drive from one engine it is sufficient to install one clutch.The device may be used any suitable known coupling, in which one of the coupling has an axial movement, and to register its actuation can also be used suitable known sensor, contact or contactless.The simplest and most reliable it turns out the device using a Cam safety clutch unilateral actions and sensor, made in the form of two shoulders of the lever, one n use in the control system the most common and reliable relay elements with electromagnetic control.The description of the device illustrated in the drawings, where Fig. 1 shows a General view of the cleaning apparatus, and Fig. 2 - node I in Fig. 1 with a safety clutch and sensor.The device contains purifying apparatus 1 directly connected to the supply line from the supply system cleansing agent. The apparatus includes a support beam 2 with the guides 3, which by means of rollers 4 moves the carriage 5 mounted on it with a site seal and gearbox (not shown). The site seal is mounted retractable tube 6. Combined actuator includes a motor 7, the shaft which the friction clutch is connected to the shaft of the gearbox and through the rack and pinion is connected with the beam 2. Rotational movement of the retractable tube 6 is transmitted with a chain 8 from the gearbox through the seal Assembly.The safety clutch is made with mechanical Cams 9, having a one-sided slant, with the possibility of triggering only when the extension pipe 6.The clutch contains a fixed 10 and a movable spring-loaded 11 coupling. The time of actuation of the clutch is adjusted by changing the force of the spring 12. The sensor drive overload made in the form of pivotally mounted on the flange 13 connecting Ales 11, and the other with the contact switch 15 mounted also on the flange 13.In addition, the device has a known control means forming a control system (not shown).The device operates as follows.When you enable the control system of the motor 7 torque through a safety clutch is transmitted to the gearbox. When this coupler is designed for inrush overload, does not work.Through a rack and pinion carriage 5 is installed on the pipe 6 reported translational motion, through a chain transmission pipe 6 circular motion.During normal operation, the pipe is pushed into the boiler through a hatch in the wall, upon reaching the desired depth included the supply of a cleaning agent, and upon reaching the maximum depth extension of the motor 7 is reversed by the control system, the apparatus returns to its original position in the reverse order.When the malfunction of the apparatus, leading to an overload of the actuator, for example, when utichanyi retractable tube 6 in the slag deposits or other obstacle, the safety clutch is triggered instantly lever 14, which the second shoulder affects the contact switch 15, the signal of which is fed into the control system, which reverses the motor 7, and the carriage 5 is returned to its original position. When this safety coupling due to the one-sidedness of its action is not triggered and allows you to transmit an increased torque. Apparatus for cleaning boiler heating surfaces containing pipelines to supply a cleaning agent, the cleaning apparatus with retractable pipe and drives its reciprocating and rotational motions, at least one sensor overload actuators associated with the engine control system drive reciprocating motion and the possibility of its reversal when an overload of the actuator, characterized in that at least one of the actuators equipped with safety slipping clutch and sensor overload of actuators associated with a slipping clutch and is configured to check its operation.
FIELD: automotive industry.
SUBSTANCE: proposed cone clutch has driving and driven cones. Driving cone is fitted on intermediate shaft one end of which is connected by sliding splined joint with output shaft of engine with possibility of axial travel. Driven cone is connected with drive shaft of gearbox.
EFFECT: improved reliability of car clutch.
FIELD: engines and pumps.
SUBSTANCE: centrifugal clutch comprises flywheel, driving shaft, gear box, centrifugal weights and jacket. Crankshaft has splines, on which drive half-coupling is movably installed as flywheel with gearing elements. Slave half-coupling is fixed on gearbox shaft, and this half-coupling comprises coupling cavities equipped with rolling paths, configuration of which has shape of joined cone tops, and gearing elements of slave half-coupling may move along these tops. Drive half-coupling is connected to crankshaft with the possibility of centrifugal control of automatic engagement and disengagement of half-couplings. Slave half-coupling may move in splines and is spring-loaded by elastic element depending on high sensitivity of unit to overloading processes.
EFFECT: possibility of automatic engagement and disengagement of half-couplings and higher operational reliability of centrifugal clutch.
2 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: interlocking device of differential includes coupling element (1) having the channel intended for retention of spring (7) coaxially with pin (3, 4) located in appropriate second coupling element. Passage for spring through lateral side (11, 12) of coupling element is formed with slot (10) passing through side wall of the above coupling element and being the part of inner surface of coupling element (1).
EFFECT: reducing the time required for manufacture and manufacturing costs.
6 cl, 3 dwg
FIELD: manufacturing technology.
SUBSTANCE: link (400) end of tooth coupling for rotary connection comprises: multiple teeth (402, 403), arranged in circle and protruding from plane of wheel running in radial direction (407) and peripheral direction (409), side surface (411) of tooth (403) of plurality of teeth is opposite to the side surface (413) of another tooth (402) of multiple teeth, tooth (403) adjacent to other tooth (402) and is separated from other tooth separating surface (404) containing flat surface (405) lying in plane of wheel, separating surface (404) comprises a central projection (423) between the side surface (411) of tooth (403) and side surface (413) of another tooth (402), and projection (423) projects from plane of wheel.
EFFECT: higher accuracy of manufacturing and simplified control of end links of tooth coupling is achieved.
17 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly, to power take-off sleeves for mobile power unit. Power take-off sleeve for connection of power unit 20 with auxiliary mechanism 14, 16, 17, used in construction sites, includes an elastic component of power transmission inside sleeve. Fixing device is intended for mechanical fixation of auxiliary mechanism 14, 16, 17 and 20 and power plant comprises uncoupling mechanism with manual control used if unlocking is required. At output driving shaft of power unit 20 there is one half of gear clutch, other half is mounted on driven auxiliary mechanism. Device for centering power unit 20 and auxiliary mechanism 14, 16, 17, used on building sites, comprises first round ring coaxially attached to output shaft in assembly of power unit 20, and second round ring coaxially attached to input shaft in assembly of driven auxiliary mechanism 14, 16, 17. Diameters of two rings differ so that one round ring is made with possibility of coaxial engagement with another round ring with observance of strict tolerances so that external circumference of circular rings of smaller diameter is engaged, at least, with sections of round ring inner circle of larger diameter with coaxial alignment of output of drive shaft of power unit 20 and input of drive shaft auxiliary mechanism 14, 16, 17.
EFFECT: technical result consists in improvement of alignment of driving and driven shafts.
31 cl, 8 dwg
FIELD: machine engineering.
SUBSTANCE: clutch device includes the first part, the second part, the clamping mechanism and the anti-force mechanism. The first detail is equipped with a set of first dogs. The second part is supplied with a plurality of second triggers. The pressing mechanism is configured to press the first part toward the second part. The opposing force mechanism is configured to form a counter force with respect to the pressing force pressing the first part so that the first pawls and the second pawls are engaged with each other so that the magnitude of the increase in the opposing force relative to the movement of the first part is greater at a position farther on the side of the second part, than in the given position, in comparison with the magnification value for a given position, when the first part is pressed.
EFFECT: improving the clutch reaction.
FIELD: industry power engineering.
SUBSTANCE: invention is designed for cleaning heating surfaces of boiler units from ash and slag deposits. Proposed device contains nozzle head in inclined fastening holder with carrier and electric drive on frame to provide reciprocation and rocking displacements of head on conical surface mainly in horizontal directions, and mechanism for turning nozzle head in vertical plane. It employs also coaxial truncated guide cylindrical bows whose end faces are fastened through support plate to boiler water-wall tubes. "Ω"-shaped slide belts are installed on outer and inner cylindrical surfaces of bows, being rigidly connected both from sides of bases and to each other. Outer "Ω"-shaped belt is connected by rods with frame of hydraulic monitor. Axes of cylindrical surfaces of truncated bows are arranged in one plane with axes of boiler water-wall tubes in smallest section of arch. Said plane intersects vertex of cone whose generatrix is axial line of nozzle head.
EFFECT: improved operation reliability.
FIELD: cleaning of condenser tubes from deposits and elimination of wash-out of zinc from brass in tubes as a result of jet erosion.
SUBSTANCE: the device has a honeycombed ball-shaped framework with a cavity inside it, placed in which is an elastic non-hydroscopic material. The framework is made of an alloy of zinc, tin and lead. Passing through tubes, the component, decreasing in diameter, leaves its metal on the tube walls, rubbing it in the wall roughnesses, eliminating the erosion.
EFFECT: prolong service life of the tubes.
FIELD: jet treatment of surfaces.
SUBSTANCE: case of boiler unit is connected by means of single-axis hinges with central parts of two parallel three-hinged connecting-rods. Axes of hinges and axis of nozzle belong to the same plane. Ends of connecting rods are connected with ends of two levers by single-axis hinges. Other ends of levers are connected with foundation by means of two-axis hinges. Common axis of these hinges crosses center of opening in foundation. Hinges are placed onto foundation in such a way that axis of nozzle crosses center of opening. Case, connecting rods, levers and foundation all together form flat-hinged n-tier model, which is formed by parallelograms. The n-tier model is capable of turning about axis (i.e. it has two degrees of freedom), that's why nozzle has two degrees of freedom and its axis crosses center of opening at any position.
EFFECT: reduced wear of items of nozzle unit; easiness at control of drives of unit.
3 cl, 5 dwg
FIELD: heat power engineering.
SUBSTANCE: device comprises milling cutter mounted coaxially to the pipe of the heat exchanger, ropes connecting from both sides of the cutting miller, reverse wrench connected with the rope, and electronic control unit.
EFFECT: enhanced efficiency of cleaning.
FIELD: chemical, metallurgy, mining and other industries.
SUBSTANCE: invention relates to devices for pneumopulse breaking of material and cleaning surfaces of apparatuses from deposits. Proposed pneumopulse system contains row of containers connected in succession and furnished with exhaust nozzles, elastic diaphragms, prechamber and working space. First container is connected with union to deliver compressed air. System in furnished with elastic diaphragms with valves dividing each container into prechamber and working space. Each container is provided with intake chamber divided by elastic diaphragm into intake space and adapter chamber communicating with prechamber through hole in its central part, and by means of holes on side surface, with atmosphere. Working space of each preceding container communicates through pipeline with valve with intake space of each following container, intake space of first container communicates through control valve with atmosphere and intake chamber, working space and prechambers of all containers are connected by throttling unions with compressed air delivery pipeline.
EFFECT: improved efficiency of material bridge breaking and cleaning of surfaces of apparatuses from deposits.