CN215198847U - Rotatable switching collection petticoat pipe - Google Patents

Abstract

The utility model provides a rotatable switching smoke-collecting hood, which comprises a base, a limit support boss and a bearing rotary sliding ring, wherein the bearing rotary sliding ring comprises an inner bearing rotary sliding ring and an outer bearing rotary sliding ring, the upper end surface of the limit support boss is provided with a first groove and a second groove, the lower end surfaces of the inner bearing rotary sliding ring and the outer bearing rotary sliding ring are respectively fixed with a support wheel set and a centering wheel set, the support wheel set and the centering wheel set are respectively movably connected with the first groove and the second groove, the upper end of the inner bearing rotary sliding ring is fixed with an inner side semi-ring column, the upper end of the outer bearing rotary sliding ring is fixed with an outer side semi-ring column, the outer side semi-ring column is provided with an air suction inlet near the outer side of the top, the air suction inlet is connected with an air suction hood, the lower end of the air suction hood is communicated with a ventilation branch pipe, the utility model can rapidly discharge the oil fume generated in the quenching process, the quenching oil is prevented from catching fire, and meanwhile, the fire hazard and explosion risk are further reduced by arranging an atmosphere inerting system.

Description

Rotatable switching collection petticoat pipe

Technical Field

The utility model relates to a technical field of collection petticoat pipe specifically is a rotatable switching collection petticoat pipe.

Background

Quenching oil is the most common cooling medium in heat treatment production, and because the specific heat of the quenching oil is low, the quenching oil is rapidly heated by red hot workpieces in the quenching and cooling process after the workpieces are heated and discharged from a furnace. When the temperature of the quenching oil rises to exceed the flash point of the quenching oil, steam is generated in a local range above the oil surface, and the steam is mixed with air to form a flammable environment and then can be ignited by red hot workpieces, so that the ignition phenomenon of the quenching oil is caused. At present, an open-type oil tank is a periodic quenching oil tank used by a periodic heat treatment furnace with large quantity and wide range, is simple and practical, but has single performance, some oil tanks are internally provided with simple devices such as a snake-shaped cooling pipe, a lifting quenching platform and the like, and even some oil tanks are only provided with a simple tank body for containing quenching oil and have no other functions. Workpieces are quenched in the oil groove, often accompanied by diffusion of a large amount of oil smoke, even the quenching oil is ignited, so that the environment pollution is caused, and the potential safety risk is increased.

In order to prevent the quenching oil from catching fire, the oil tank is provided with a ventilation, smoke discharge and explosion prevention system so as to rapidly discharge the oil smoke generated in the quenching process.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a rotatable switching collection petticoat pipe for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a rotatable opening and closing smoke collecting hood comprises a base, wherein a limiting support boss is fixed at the upper end of the base, a bearing rotary sliding ring is arranged at the upper end of the limiting support boss and comprises an inner bearing rotary sliding ring and an outer bearing rotary sliding ring, a first groove and a second groove are formed in the upper end face of the limiting support boss, a support wheel set and a centering wheel set are respectively fixed on the lower end faces of the inner bearing rotary sliding ring and the outer bearing rotary sliding ring, the support wheel set and the centering wheel set are respectively movably connected with the first groove and the second groove, an inner side semi-ring column is fixed at the upper end of the inner bearing rotary sliding ring, an outer side semi-ring column is fixed at the upper end of the outer bearing rotary sliding ring, an air suction opening is formed in the position, close to the outer side of the top, the air suction opening is fixedly connected with a suction hood, and a ventilation branch pipe is fixedly communicated with the lower end of the suction hood, the ventilation branch pipe is perpendicular the cover that induced drafts and with the laminating of outside semi-ring post outside, the base upper end is fixed with the pipeline port, pipeline port upper end with the ventilation branch pipe lower extreme intercommunication, this design forms local airtight space through inboard semi-ring post and outside semi-ring post closure, has reduced the air pollution risk of the oil mist that the thermal treatment quenching volatilizees freely diffusing in the workshop, and the cover that induced drafts simultaneously is through the direct sealed intercommunication of ventilation branch pipe and pipeline port, is convenient for discharge the inside oil smoke of collection petticoat pipe.

Furthermore, a rubber plate is arranged between the outer side semi-ring column and the inner side semi-ring column and fixedly connected with the inner wall of the outer side semi-ring column, and the rubber plate is attached to the inner side semi-ring column by utilizing the flexibility of the rubber plate, so that the sealing effect is achieved.

Furthermore, the upper ends of the outer side semi-ring column and the inner side semi-ring column are respectively fixed with a wind shield, the wind shields are semi-annular, the central positions of the wind shields are provided with through holes, the design is convenient for the two follow-up top wind shields to have limited sealing upper parts when the inner side semi-ring column and the outer side semi-ring column are closed, and the central positions of the wind shields are provided with through holes for hanging steel wire ropes.

Furthermore, the inner semi-ring column and the outer semi-ring column are welded and formed by adopting a back-weighing bracket and a steel skin, the back-weighing bracket is respectively positioned inside the inner semi-ring column and outside the outer semi-ring column, and the design is favorable for enhancing the stability of the structure of the inner semi-ring column and the outer semi-ring column.

Further, base internally mounted has actuating system, position sensor and atmosphere inerting system, and this design is convenient for through opening and closing of actuating system control inside and outside semi-ring post, can also control the speed and the amount of wind of the interior fan of cover that induced drafts simultaneously, realizes the accurate control of inside and outside semi-ring post opening range through position sensor, through setting up atmosphere inerting system and being used for carrying out directional dispersion to quenching oil level and quenching workpiece's local area, reduces the risk of oil mist fire hazard explosion among the quenching process.

Furthermore, the driving system adopts a servo motor, the action characteristic of the servo motor is convenient for position positioning control and action speed control, and the advantages of small occupied space and high power and torque density of the servo motor are utilized, so that the performance can be greatly improved, the whole structure is compact, and the effective utilization of the space is realized.

Further, atmosphere inertization system includes air supply, dispersion head, intercommunication pipeline and solenoid valve, the air supply is nitrogen gas, and nitrogen gas is an inert substance, through spraying inertization nitrogen gas, can replace the air, reduces oxygen concentration content, and before red hot work piece is about to descend perpendicularly, through opening the gas circuit solenoid valve, the intercommunication pipeline, compressed nitrogen gas is followed the dispersion head blowout, realizes the oil level upper portion within a certain height range and red hot work piece local area's accurate air replacement to reach the purpose of preventing fires and reducing the calamity.

Compared with the prior art, the beneficial effects of the utility model are that:

in the use process of the utility model, the inner side semi-ring column and the outer side semi-ring column control the smoke collecting hood to be automatically closed, and meanwhile, the air suction hood is directly communicated with the pipeline port in a sealing way through the ventilation branch pipe, so that micro negative pressure is formed inside the smoke collecting hood, thereby ensuring that the oil smoke is quickly discharged through the air suction hood; furthermore, nitrogen is sprayed to the quenching oil surface and the local area of the quenching workpiece through the atmosphere inerting system, and the oxygen concentration content is reduced by replacing air, so that the flame propagation caused in the process that the high-temperature workpiece enters the oil groove is slowed down, and the aims of fire prevention and disaster reduction are fulfilled.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic structural view of the open state of the present invention;

FIG. 3 is a side cross-sectional view of the overall structure of the present invention;

FIG. 4 is a top cross-sectional view of a portion of the structure of the present invention;

fig. 5 is a simplified schematic block diagram of the structure of the driving system of the present invention;

fig. 6 is a simplified schematic block diagram of the structure of the atmosphere inerting system of the present invention.

In the figure: 1. a base; 11. a limiting support boss; 111. a first groove; 112. a second groove; 12. a tubing port; 13. a drive system; 14. a position sensor; 15. an atmosphere inerting system; 151. a gas source; 152. an electromagnetic valve; 153. a communicating pipeline; 154. a dispersion head; 2. a load-bearing rotary slip ring; 21. an inner bearing rotary slip ring; 22. an outer load-bearing rotating slip ring; 211. a support wheel set; 222. a centering wheel set; 3. an inner semi-annular column; 4. an outer semi-annular column; 41. an air suction opening; 42. a rubber plate; 5. an air suction hood; 51. a ventilation branch pipe; 6. back weighing the bracket; 7. a wind deflector; 71. and a through hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-6 in greater detail, a rotatable exhaust fume collecting hood, comprising a base 1, a limiting support boss 11 fixed on the upper end of the base 1, a bearing rotary slip ring 2 arranged on the upper end of the limiting support boss 11, the bearing rotary slip ring 2 comprising an inner bearing rotary slip ring 21 and an outer bearing rotary slip ring 22, a first groove 111 and a second groove 112 arranged on the upper end surface of the limiting support boss 11, a support wheel set 211 and a centering wheel set 222 respectively fixed on the lower end surfaces of the inner bearing rotary slip ring 21 and the outer bearing rotary slip ring 22, the support wheel set 211 and the centering wheel set 222 respectively movably connected with the first groove 111 and the second groove 112, an inner semi-ring column 3 fixed on the upper end of the inner bearing rotary slip ring 21, an outer semi-ring column 4 fixed on the upper end of the outer bearing rotary slip ring 22, an exhaust inlet 41 arranged on the outer side of the outer semi-ring column 4 near the top, the cover 5 is induced drafted to inlet scoop 41 fixedly connected with, the fixed intercommunication of the 5 lower extremes of cover 5 that induced drafts has ventilation branch 51, ventilation branch 51 is perpendicular induced drafted cover 5 and with the outside laminating of outside semi-ring post 4, 1 upper end of base is fixed with pipeline port 12, pipeline port 12 upper end with ventilation branch 51 lower extreme intercommunication, this design is through inboard semi-ring post 3 and the closed local airtight space that forms of outside semi-ring post 4, has reduced the air pollution risk of the oil mist of thermal treatment quenching volatility in the workshop free diffusion, and the cover 5 that induced drafts simultaneously is through ventilation branch 51 and the direct sealed intercommunication of pipeline port 12, is convenient for discharge the inside oil smoke of collection petticoat pipe.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein a rubber plate 42 is disposed between the outer semi-ring column 4 and the inner semi-ring column 3, the rubber plate 42 is fixedly connected to the inner wall of the outer semi-ring column 4, wind shields 7 are respectively fixed to the upper ends of the outer semi-ring column 4 and the inner semi-ring column 3, the wind shields 7 are semi-annular and have a through hole 71 at the center, the inner semi-ring column 3 and the outer semi-ring column 4 are formed by welding a back-weighing bracket 6 and a steel skin, the back-weighing bracket 6 is respectively located inside the inner semi-ring column 3 and outside the outer semi-ring column 4, and the design utilizes the flexibility of the rubber plate 42 to attach the rubber plate 42 to the inner semi-ring column 3 together to achieve a sealing effect; when the inner semi-ring column 3 and the outer semi-ring column 4 are closed, the two follow-up top wind shields 7 have limited sealing upper parts, and a through hole 71 for hanging a steel wire rope is reserved at the central position; the back support 6 helps to strengthen the stability of the structure of the inner and outer semi-annular pillars 4.

Please refer to fig. 5 and fig. 6, a driving system 13, a position sensor 14 and an atmosphere inerting system 15 are installed inside the base 1, which is designed to control the opening and closing of the inner and outer semi-ring columns 4 through the driving system 13, and control the speed and the air volume of the fan inside the suction hood 5, so as to realize the precise control of the opening range of the inner and outer semi-ring columns 4 through the position sensor 14, and reduce the risk of oil mist fire explosion during the quenching process by arranging the atmosphere inerting system 15 for directional dispersion to the quenching oil surface and the local area of the quenching workpiece.

Please refer to fig. 5, the driving system 13 employs a servo motor, the motion characteristic of the servo motor is convenient for position location control and motion speed control, and the advantages of small occupied space and large power and torque density of the servo motor are utilized to greatly improve the performance, so that the whole structure is compact, and the effective utilization of the space is realized.

Please refer to fig. 6, the atmosphere inerting system 15 includes an air source 151, a dispersing head 154, a communicating pipe 153 and an electromagnetic valve 152, the air source 151 is nitrogen, nitrogen is an inert substance, air can be replaced by injecting inerted nitrogen, and oxygen concentration content is reduced, before the red-hot work piece is about to vertically descend, the air path electromagnetic valve 152 and the communicating pipe 153 are opened, and compressed nitrogen is sprayed out from the dispersing head 154, so as to achieve precise air replacement in a certain height range of the upper part of the oil surface and a local area of the red-hot work piece, thereby achieving the purpose of fire prevention and disaster reduction.

The utility model discloses a concrete operation as follows:

example (b):

one end of the pipeline port 12 is communicated with the purifier main machine, and a group of nitrogen cylinders are arranged outside the smoke collecting hood and communicated with the electromagnetic valve 152.

The fume collecting hood is provided with four positioning points which are set as A, B, C, D four buttons, when feeding is needed at the point A, a worker only needs to press the button A of the outer semi-ring column 4, the discharging direction of the outer semi-ring column 4 is controlled to be automatically positioned at the set position through the driving system 13 and the position sensor 14, the inner semi-ring column 3 can be opened from the set position, then the workpiece is dragged to enter the fume collecting hood to the specified position through the traveling crane steel wire rope, the inner semi-ring column 3 rotates, the discharging port faces inwards and is cylindrical with the outer semi-ring column 4 to realize closing the door, meanwhile, the ventilation branch pipe 51 is communicated with the pipeline port 12, ventilation is started after the fume collecting hood is closed, the amount of a nitrogen bottle is controlled through the electromagnetic valve 152, compressed nitrogen is sprayed to the quenching oil supply port from the dispersing head 154, the purifier host and the fume hood 5 are opened in advance before quenching the workpiece, and the air volume of the fume hood 5 is ensured to be maximum, the workpiece is descended into the oil groove for quenching, the generated smoke oil is discharged through the air suction hood 5 and is discharged to the purifier host through the ventilation branch pipe 51 and the pipeline port 12, and when the discharging is needed after the quenching is finished, the corresponding position of the outer semi-ring column 4 is selected first, and then the inner semi-ring column 3 is opened.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims (7)

1. The utility model provides a rotatable switching collection petticoat pipe, includes base (1), its characterized in that, base (1) upper end is fixed with spacing support boss (11), spacing support boss (11) upper end is equipped with rotatory sliding ring (2) of bearing, rotatory sliding ring (2) of bearing include interior rotatory sliding ring (21) of bearing and outer rotatory sliding ring (22) of bearing, spacing support boss (11) up end is equipped with first recess (111) and second recess (112), interior rotatory sliding ring (21) of bearing with the terminal surface is fixed with support wheelset (211) and centering wheelset (222) respectively under outer rotatory sliding ring (22) of bearing, support wheelset (211) with centering wheelset (222) respectively with first recess (111) with second recess (112) swing joint, interior rotatory sliding ring (21) upper end is fixed with inboard semi-ring post (3), outer rotatory sliding ring of bearing (22) upper end is fixed with outside semi-ring post (4), outside semi-ring post (4) are close to the top outside and are equipped with inlet scoop (41), inlet scoop (41) fixedly connected with cover (5) that induced drafts, the fixed intercommunication of cover (5) lower extreme that induced drafts has ventilation branch pipe (51), ventilation branch pipe (51) are perpendicular induced draft cover (5) and with outside semi-ring post (4) outside laminating, base (1) upper end is fixed with pipeline port (12), pipeline port (12) upper end with ventilation branch pipe (51) lower extreme intercommunication.

2. A rotatable fume collecting hood according to claim 1, characterized in that a rubber plate (42) is arranged between the outer side semi-ring column (4) and the inner side semi-ring column (3), and the rubber plate (42) is fixedly connected with the inner wall of the outer side semi-ring column (4).

3. The rotatable smoke collecting hood for the kitchen according to claim 1, wherein wind shields (7) are respectively fixed at the upper ends of the outer side semi-ring columns (4) and the inner side semi-ring columns (3), the wind shields (7) are semi-annular, and a through hole (71) is formed in the center of each wind shield.

4. A rotatable fume collecting hood according to claim 1, characterized in that the inner half ring column (3) and the outer half ring column (4) are welded by using a back scale bracket (6) and a steel skin, and the back scale bracket (6) is respectively positioned inside the inner half ring column (3) and outside the outer half ring column (4).

5. A rotatable fume collecting hood according to claim 1, characterized in that said base (1) internally houses a drive system (13), a position sensor (14) and an atmosphere inerting system (15).

6. A rotatable fume collecting hood according to claim 5, characterized in that said drive system (13) is a servo motor.

7. A rotatable fume collecting hood according to claim 5, characterized in that said atmosphere inerting system (15) comprises a gas source (151), a dispersion head (154), a communication conduit (153) and a solenoid valve (152), said gas source (151) being nitrogen.

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