RU2460953C1 - Tube drier and method of drying - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: proposed drier comprises frame, support with V-like seats 3, 4, clamping mechanisms made up of two-arm levers pivoted to said frame and coupled with drive, pick-and-place mechanism made up of levers pivoted on crosswise axles. Top arms of levers represent inclined plate 9 with slope toward unloading side, and thrust 11. Bottom arms of levers are jointed with drive 12 via tie rod 13. Air is fed by fan via heater and nozzles. Proposed method comprises placing tubes in V-like seats, and heating by hot air feed via tubes. Besides, it includes extracting tubes from said seats by pick-and-place device to roll them over on inclined plate so that first tube rolls against the stop on said plate after heating. Then said device displaces to second line of seat. Second tube comes in second line of seats. After drying two tubes pick-and-place device is lifted. First tube goes to unloading. Second tube rolls over against the stop. Then, with said device lowering, second tube comes into second line of seats while third tube gets into first line of seats. Note here that tubes make in rolling, at least, one turnover. While fluid left in tube after first drying cycle is distributed in thin layer over entire inner perimetre of the tube to be finally removed at the nest drying cycle.

EFFECT: higher efficiency.

4 cl, 3 dwg

Description

The invention relates to devices and methods for heating and can be used for drying mainly the inner surface of long pipes.

A device for drying pipes is known (see RF patent for the invention No. 20550524, IPC F27B 9/10), comprising a heating chamber with burners, on the outer surface of which there is an air intake connected to the burners by a pressure air duct, a blowing chamber with a contour heat and gas collector and nozzles located on the inner wall, placed in front of the heating chamber and connected to it by a pressure heat and gas pipeline.

The known device allows you to effectively clean the pipe from icy snow with further drying.

However, the use of gas burners requires special equipment to control and monitor their operation. In addition, the known device requires a separate room and the mandatory presence of the operator, since the pipes exit the drying chamber with a temperature of up to 400 °. In this case, heating of the pipes occurs from their outer surface, therefore, additional time is required for drying the inner surface of the pipes, which reduces the productivity of the installation.

A known installation for drying pipes (see tubing T4662.00.00.000, NPP Techmashkonstruktsiya, Samara, tmk@npp-tmk.ru) containing a frame, a supporting body, nozzles mounted on the frame with the possibility of connection with the ends of the pipes, fan.

The known installation is intended for drying the inner surfaces of pipes moistened with hydraulic tests or washing by forcing the pump to draw air from the room through the pipe.

Due to the fact that cold air from the room, drawn through the pipes, has low saturation with water vapor, the use of the known installation for drying pipes is inefficient, as it requires a significant drying time and does not guarantee complete removal of moisture.

The closest in technical essence and coolant supply system is a pipe drying installation (see RF certificate for utility model No. 19146, IPC F26B 3/02, “Slit single-row dryer”, publication date 10.08.2001), containing a frame (frame ), a supporting body, a heat exchange system, while the frame is equipped with interchangeable gate valves installed coaxially to the pipe package and having grooves whose height corresponds to the inner diameter of the pipe, and the length to the length of the pipe package.

A disadvantage of the known installation is that the flow of coolant through the slots of the slide gate does not provide the optimal amount of coolant passing through the pipe. Most of the coolant follows the path of least resistance along the outer surface of the pipe bundle, which reduces the efficiency of using the coolant. Therefore, drying the tube package in the drying chamber is energy-intensive, which makes the drying process more expensive.

The technical result is to reduce the energy consumption of the installation and increase the efficiency of drying pipes.

The specified technical result is achieved in that the installation for drying pipes containing a frame, a supporting member, a coolant supply means arranged coaxially with the pipes, according to the invention further comprises a pipe clamping mechanism and a shifter made in the form of levers pivotally mounted on the transverse axes of the frame, the lower arms of the levers are pivotally connected to the actuator of the translator, the upper arms are made in the form of an inclined plate with a stop, the supporting body is made in the form of lodgements with V-shaped sockets for races the position of at least two pipes, the coolant supply means is made in the form of nozzles, the clamping mechanism is made in the form of two-arm levers pivotally mounted on the frame, one shoulder of which is connected to the clamping mechanism drive, the other acts on the pipe, and the shifter drive and the drive of the clamping mechanism is made in the form of pneumatic cylinders.

The presence of tube clamping mechanisms makes it possible to tightly connect the pipes with nozzles, directing the coolant inside the pipe, preventing the coolant from leaking, which increases the drying efficiency.

The execution of the shifters in the form of levers pivotally mounted on the transverse axes of the frame, while the lower shoulders of the levers are pivotally connected to the drive of the shifter, the upper shoulders of the levers are connected by a plate, allows you to smoothly raise and lower the pipes, acting on them with a plate mounted with the possibility of radial movement, which eliminates shock and vibration.

The presence of a slope on the plate in the direction of unloading allows the pipes to be rolled from one position to another, while the liquid in the pipe spreads around the entire inner perimeter of the pipe, which significantly reduces the liquid layer and, therefore, increases the drying efficiency. In addition, the slope on the plate allows the first pipe to be rolled up onto the take-up roller when the translator is raised, the second pipe can be rolled to the stop and positioned opposite the socket located on the discharge side, and when lowering the translator, the second pipe can be placed in the slot in place of the first pipe, which allows each the pipe undergo at least a double drying cycle.

Technical solutions that coincide with the totality of the essential features of the invention have not been identified, which allows us to conclude that the invention meets the condition of patentability “novelty”.

The claimed essential features of the invention, predetermining the receipt of the specified technical result, do not explicitly follow from the prior art, which allows us to conclude that the invention meets the patentability criterion of "inventive step".

The patentability condition "industrial applicability" is confirmed by the example of a specific implementation of the invention.

The figure 1 shows a General view of the installation.

In figure 2 is a view A of figure 1.

In figure 3 - View BB of figure 1.

Installation for drying pipes contains a frame 1, a lodgement 2 with sockets 3 and 4, made in a V-shape, the clamping mechanisms made in the form of two shoulders levers 5, pivotally mounted on the frame 1 and connected to the pneumatic cylinders 6, a translator made in the form of levers 7 pivotally mounted on the transverse axes 8. The upper arms of the levers 7 are made in the form of an inclined plate 9 made with a slope 10 in the direction of unloading, with a stop 11. The lower shoulders of the levers 7 are connected to the pneumatic cylinder 12 by means of a thrust 13. Air supply is carried out by a fan 14 cut the air heater 15 and the nozzle 16. At the end of the pipes 17 a tray 18 is installed to receive possible contaminants.

A known method of drying pipes ((see tubing T4662.00.00.000, NPP Techmashkonstruktsiya, Samara, tmk@npp-tmk.ru), in which the pipes are laid on a supporting body (lodgements), connect them by means of a clamping mechanism to nozzles, carry out forced high-speed drawing through them of air from the room, followed by condensation of moisture in the drying chamber.

Although the known method excludes energy costs for heating the air, however, due to the low saturation of cold air with water vapor, the drying time of the pipes is significantly increased. In addition, the pipes are in one position and all the liquid accumulates in the lower part of the pipe, which requires more time for drying, therefore, reduces the efficiency of the drying method.

The technical result is to increase the productivity and efficiency of drying pipes.

The specified technical result is achieved by the fact that in the method of drying the pipes, including laying the pipes on the lodgements, connecting them with clamping mechanisms with nozzles, forced high-speed supply of air through the pipes, according to the invention, the pipes are successively laid in V-shaped nests of the lodgements and, depending on the number of pipes, drying cycles by supplying hot air through the pipes, while the transferr, equipped with an inclined plate with a stop, lift the pipes from the nests and roll them along the inclined plate in such a way that the first pipe after the drying cycle from the first row of sockets rolls along the inclined plate to the stop, and then, when lowering the shifter, it goes into the second row of nests, the second pipe enters the first row of nests, after lifting the drying cycle of two pipes, the first pipe goes to unload, the second pipe rolls all the way, and then, when lowering the relocator, it enters the second row of sockets, and the third pipe enters the first row of nests, while the pipes make at least one revolution when rolling from one position to another, liquid remaining in the pipe after the first drying cycle, while rolling the tube in the second row slots evenly distributed thin layer around the internal perimeter of the pipe and is finally removed in a subsequent drying cycle.

Conducting a cycle of drying pipes with hot air, which has the ability of greater moisture saturation than cold air, reduces the drying time.

Rolling pipes from one position to another and rotating them allows the liquid to spread in a thin layer over the entire inner surface of the pipe, which increases the drying efficiency.

The sequence of transferring pipes into rows of V-shaped nests by raising and lowering the transfer device, equipped with an inclined plate and an emphasis, allows each pipe to be subjected to at least two drying cycles, which increases the quality and efficiency of drying.

The claimed essential features of the method, predetermining the receipt of the specified technical result, do not explicitly follow from the prior art, which allows us to conclude that it meets the patentability criterion of "inventive step".

The method is as follows. The first pipe 17-1 is laid in the V-shaped nests 3 of the lodgements 2. Press it tightly to the nozzle 16 with the two-armed lever 5 by means of the pneumatic cylinder 6. A drying cycle is carried out for 2 minutes by forced high-speed supply of hot air with a temperature of 50-70 ° from the air heater 14 by a fan 15. Then the lower shoulders of the levers 7 are turned by the pneumatic cylinder 12 to the side of the pneumatic cylinder 12. In this case, the inclined plate 9 moves in an arc upward, gradually lifting the first pipe 17-1 from the sockets 3. The pipe 17-1 is located on the inclined layer not 9 and rolls on a slope 10 to the stop 11. Then the pneumatic cylinder 12 turns the levers 7 away from the pneumatic cylinder 12. The plate 9 is lowered and with it the pipe 17-1, which goes into the nests 4, and the second pipe 17 enters the nests 3 -2 from a boot device (not shown). A drying cycle of two pipes is carried out. In this case, the water remaining in it after the first drying cycle and distributed in a thin layer along the inner perimeter when rolling the pipe is completely removed from the first pipe located in sockets 4. After the drying cycle, raise the inclined plate 9, the first pipe 17-1 along the slope 10 enters the unloading device (not shown). The second pipe 17-2 rolls on a slope 10 to the stop 11. Lower the inclined plate 4. The second pipe takes up space in the sockets 4, and the third pipe 17-3 enters the sockets 3. The following drying cycle is carried out. Thus, each pipe goes through two drying cycles.

Claims (4)

1. Installation for drying pipes, containing a frame, a supporting body, a coolant supply means located coaxially with the pipes, characterized in that it further comprises pipe clamping mechanisms and a shifter made in the form of levers pivotally mounted on the transverse axes of the frame, while the lower the arms of the levers are pivotally connected to the actuator of the translator, the upper arms are made in the form of an inclined plate with an emphasis, the supporting body is made in the form of lodgements with V-shaped sockets for arranging at least two pipes, means p The coolant flow is made in the form of nozzles. 2. Installation according to claim 1, characterized in that the clamping mechanism is made in the form of a two-shouldered lever pivotally mounted on a frame, one shoulder of which is connected to the clamping mechanism drive, the other acts on the pipe. 3. Installation according to claim 1, characterized in that the translator drive and the drive of the clamping mechanisms are made in the form of pneumatic cylinders. 4. A method of drying pipes, including laying pipes on lodgements, connecting them with clamping mechanisms and nozzles, forced high-speed air supply through pipes, characterized in that the pipes are successively laid in V-shaped nests of lodgements and, depending on the number of pipes, carry out drying cycles by feeding through hot air pipes, while periodically a transferr equipped with an inclined plate with a stop is lifted from the pipe sockets and rolled them along the inclined plate so that the first pipe after drying cycle from of the first row of sockets is rolled along the inclined plate to the stop, and then, when lowering the shifter, it goes into the second row of nests, the second pipe enters the first row of nests, after raising the drying cycle of the two pipes, the translator is lifted, the first pipe is unloaded, the second pipe is rolled to the stop, and then, when lowering the shifter, it enters the second row of sockets, and the third pipe enters the first row of nests, while the pipes, when rolling from one position to another, make at least one revolution, and the liquid remaining in the pipe after the first of the drying cycle, when rolling the pipe into the second row of nests, it is evenly distributed with a thin layer along the entire inner perimeter of the pipe and is finally removed in the subsequent drying cycle.

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