Electric blower pressure equalizing pipe exhaust device

Abstract

The utility model provides a pressure equalizing pipe exhaust device of an electric blower, which relates to the technical field of matched mechanical equipment of titanium dioxide electric blowers and comprises a communicating pipe, a flange, an expansion joint, an exhaust port and an elastic support. The communicating pipe comprises a front-section pipe body and an extension-section pipe body which are connected through an expansion joint, and the extension section is provided with a beveled exhaust port and a guide plate after penetrating out of a plant; the front-section pipe body is connected with a pressure equalizing pipe exhaust port through a DN100 flange, a high-temperature-resistant sealing gasket is arranged in the front-section pipe body, and flange bolt holes are asymmetrically distributed; an elastic support containing a high-damping rubber layer is arranged at the bottom of the pipe body to restrain vibration conduction. All the components are made of Q235 steel base materials, and the inner walls of the components are coated with organic silicon heat-resistant coatings of 50-80 microns. The device realizes the functions of directional discharge of high-temperature gas, vibration noise suppression, overpressure relief protection and quick disassembly and maintenance, effectively solves the problems of thermal pollution of a plant, equipment loss and low maintenance efficiency, and comprehensively improves the operation safety and environmental adaptability of an air blower unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric blower fan supporting mechanical equipment technical field, specifically, especially electric blower fan pressure equalizing pipe exhaust device. BACKGROUND

[0002] Electric blower fan set is the equipment for blast furnace blast, technological process: air→filtration refrigeration dehumidification device→electric blower fan→check valve→outlet muffler→electric air supply valve→air distribution valve→air supply mother channel→hot blast stove.

[0003] Electric blower fan set comprises blower fan body, motor and excitation system (including UPS) and frequency conversion starting device, gear box (including turning gear device), lubricating system, power oil system, jacking oil pump, liquid anti-surge valve, electric air release valve, air supply valve, outlet check valve, exhaust muffler, rectifier grid, fan inlet nonmetal compensator, coupling, servo motor, static vane servo control system, unit low voltage electric control system, unit automatic control system and other supporting parts.

[0004] Machine top pressure equalizing pipe includes diffusion valve, diffusion pipe and the like, has the advantages of simple structure, convenient operation and the like, and is widely applied in electric blower fan set.

[0005] Due to the friction and high temperature during the operation of the blower, the shaft seal gap increases, the static vane seal ring ages, the pressure equalizing pipe exhaust capacity gradually increases, and the exhaust is placed in the factory building, which causes the high temperature environment in the factory building and affects the service life of the equipment and facilities. UTILITY MODEL CONTENTS

[0006] According to the above technical problems, the electric blower fan pressure equalizing pipe exhaust device is provided, which solves the technical problems of the shaft seal gap increase, the static vane seal ring aging, the pressure equalizing pipe exhaust capacity increase and the hot gas exhaust in the factory building caused by the friction and high temperature during the operation of the blower.

[0007] To achieve the above purpose, the utility model provides an electric blower fan pressure equalizing pipe exhaust device, which comprises: a communication pipe, a flange, an expansion joint, an exhaust port and an elastic support.

[0008] The communication pipe comprises a front section pipe body and an extension section pipe body; the front section pipe body and the extension section pipe body are detachably connected by the expansion joint, and the extension section pipe body extends to the outside of the factory building wall and is provided with an inclined cut exhaust port.

[0009] The front section pipe body and the exhaust port are sealed and connected by the first flange, and the communication pipe bottom is provided with an elastic support fixed with the factory building floor.

[0010] Further, the flange is DN100, and a high-temperature-resistant graphite sealing gasket is arranged between the flange and the exhaust port.

[0011] Further, the elastic support comprises a steel structure supporting portion and a high-damping rubber buffer layer, the buffer layer is vulcanized to cover the inner surface of the supporting portion to form a pipe contact surface, one end of the support is fixed to the factory floor, and the other end supports the communication pipe, and a plurality of supports are arranged along the extension direction of the communication pipe.

[0012] Further, the end of the extension section pipe body is provided with an inclined surface inclined downward by 15-25°, and an annular guide plate is welded to the outer edge of the outlet of the inclined surface.

[0013] Further, the expansion joint is connected with the front section pipe body and the extension section pipe body through the second flange.

[0014] Further, the communication pipe, the flange and the elastic support are made of Q235 steel, and the inner surface is coated with a 50-80 mu organic silicon heat-resistant coating.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The exhaust device of the equalizing pipe of the electric blower fan provided by the utility model can guide the high-temperature gas discharged from the equalizing pipe to the outside of the factory through the communication pipe, significantly reduce the heat pollution and noise pollution in the factory, reduce the damage of high temperature to the equipment and facilities in the factory, prolong the service life of the equipment, and improve the working environment.

[0017] 2. The exhaust device of the equalizing pipe of the electric blower fan provided by the utility model is connected through the DN100 flange between the communication pipe and the exhaust port of the equalizing pipe, which simplifies the disassembly process of the unit cover, meanwhile, the front section pipe body and the extension section pipe body are connected through the expansion joint, which can absorb the thermal expansion of the pipeline, eliminate the vibration of the pipeline caused by the vibration of the unit, facilitate quick disassembly and repair, and reduce the maintenance cost and time; the elastic support can enhance the stability of the pipeline and avoid loosening caused by vibration.

[0018] 3. The exhaust device of the equalizing pipe of the electric blower fan provided by the utility model is made of Q235 carbon steel and supplemented by a high-temperature-resistant anticorrosive coating, which can ensure the long-term reliability of the pipeline in a high-temperature and corrosive environment; the end of the exhaust port is provided with a downwardly inclined bending structure, which can effectively prevent rainwater from flowing backward, avoid water accumulation or corrosion in the pipeline, and further improve the safety of system operation.

[0019] Based on the above reasons, the utility model can be widely popularized in the technical field of electric blower fan supporting mechanical equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described in the following are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 It is a structural schematic diagram of the equalizing pipe exhaust device of the electric blower of the present application.

[0022] In the figure: 1, communication pipe; 11, front section pipe body; 12, extension section pipe body; 2, flange; 21, first flange; 22, second flange; 3, expansion joint; 4, exhaust port; 5, elastic support; 51, steel structure support part; 52, high-damping rubber buffer layer; 6, factory building floor. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] It should be noted that the terms used herein are only for describing the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, it means that there is a feature, step, operation, device, component and / or combination thereof.

[0026] The foregoing description, for purposes of explanation, sets forth specific values and arrangements of components and steps that are subject to many options. The intent is to be accurate in describing the principles and novel features of the application. Thus, although the application has been described with reference to specific embodiments thereof, it will be apparent to those of ordinary skill in the art that a number of changes can be made thereto without departing from the spirit and scope of the application. For example, the various features of the application can be used in any combination or sub-combination thereof. Accordingly, the application is not to be limited by the above description but is to be given full scope of the appended claims.

[0027] In the description of the present application, it is necessary to understand that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is usually based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the present application: the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0028] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the example term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0029] In addition, it should be noted that the use of "first", "second" and the like words to limit parts, only for the convenience of distinguishing the corresponding parts, if there is no further declaration, the above words have no special meaning, therefore, it cannot be understood as a limitation on the scope of protection of the present application.

[0030] AsFigure 1 The utility model provides a kind of electric blower equalizing pipe exhaust device, it include: communication pipe 1, flange 2, expansion joint 3, exhaust port 4, elastic support 5;

[0031] The communication pipe 1 includes front section pipe body 11 and extension section pipe body 12;The front section pipe body 11 and extension section pipe body 12 are detachably connected by expansion joint 3, and the extension section pipe body 12 extends to the outside of the factory building wall and is provided with an inclined exhaust port 4.

[0032] The front section pipe body 11 is sealed and connected to the exhaust port 4 by the first flange 21, and the bottom of the communication pipe 1 is provided with an elastic support 5 fixed to the floor.

[0033] Further, the communication pipe 1 uses a Q235 carbon steel seamless steel pipe with an outer diameter of 108 mm and a wall thickness of 4 mm as the main pipeline, the gas inlet end of the communication pipe 1 is connected to the equalizing pipe exhaust port 4 of the electric blower unit by welding, ensuring air tightness without leakage, and the total length of the communication pipe 1 is determined according to the actual span of the factory building, which is set to 12 meters in the example, extending from the fan unit to the outer wall position of the factory building roof.

[0034] The flange 2 is provided with a flat flange 2 with a nominal diameter of DN100 at the connection between the communication pipe 1 and the equalizing pipe exhaust port 4, the flange 2 has a thickness of 16 mm, and is fastened and connected by 8 groups of M16x50 bolts and nuts, and the flange 2 bolt holes are asymmetrically distributed, the design of the flange 2 allows the communication pipe 1 to be quickly disassembled during unit maintenance without damaging the pipeline or unit cover structure.

[0035] The exhaust port 4 is the terminal opening of the extension section pipe body 12 of the communication pipe 1, located on the outside of the factory building wall, a metal sleeve is provided at the wall crossing, the sleeve and the wall are filled with rock wool fireproof layer, to avoid heat backflow and damage to the wall structure, the exhaust port 4 is 6 meters high from the ground, to ensure that the discharged hot gas is far away from the personnel operation area.

[0036] Further, the flange 2 has a specification of DN100, and a high-temperature-resistant graphite gasket is provided between the flange 2 and the exhaust port 4, and the flange 2 bolt holes are asymmetrically distributed.

[0037] Further, the elastic support 5 includes a steel structure support part 51 and a high-damping rubber buffer layer 52, the buffer layer is vulcanized and covered on the inner surface of the support part to form a pipe contact surface, one end of the support is fixed to the factory building floor 6, and the other end supports the communication pipe 1, and multiple supports are arranged along the extension direction of the communication pipe 1.

[0038] Further, the extension section pipe body 12 is provided with an inclined surface inclined downward by 15-25° at the end, and a ring-shaped guide plate is welded at the outlet of the inclined surface.

[0039] Further, the expansion joint 3 is connected with the extension section pipe body 12 through the second flange 22 and the preceding section pipe body 11.

[0040] Further, the communication pipe 1, the flange 2 and the elastic support 5 are made of Q235 steel material, and the inner surface is coated with a 50-80 μm organic silicon heat-resistant coating.

[0041] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application embodiments.

Claims

1. An electric blower pressure equalizing pipe exhaust device characterized by, The utility model relates to a kind of exhaust pipe, including: Communication pipe (1), flange (2), expansion joint (3), exhaust port (4), elastic support (5); The communication pipe (1) includes front section pipe body (11) and extension section pipe body (12);The front section pipe body (11) and extension section pipe body (12) are connected by expansion joint (3) and can be detached, and the extension section pipe body (12) extends to the outside of factory building wall and is provided with inclined cut exhaust port (4); The front section pipe body (11) and exhaust port (4) are sealed and connected by first flange (21), and the bottom of the communication pipe (1) is provided with elastic support (5) fixed with floor.

2. An electric blower pressure equalizing pipe exhaust device according to claim 1, characterized by The specification of the flange (2) is DN100, and high-temperature-resistant graphite sealing pad is provided between the flange (2) and the exhaust port (4), and the flange bolt holes are asymmetrically distributed.

3. An electric blower pressure equalizing pipe exhaust device according to claim 1, characterized by The elastic support (5) includes a steel structure support part (51) and a high-damping rubber buffer layer (52), the buffer layer (52) is vulcanized and covered on the inner surface of the support part (51) to form a pipe contact surface, one end of the support (5) is fixed to the factory building floor (6), the other end supports the communication pipe (1), and multiple supports (5) are arranged along the extension direction of the communication pipe (1).

4. An electric blower pressure equalizing pipe exhaust device according to claim 1, characterized by The extension section pipe body (12) is provided with an inclined surface inclined downward by 15-25° at the end, and a ring-shaped guide plate is welded outside the outlet of the inclined surface.

5. An electric blower pressure equalizing pipe exhaust device according to claim 1, characterized by The expansion joint (3) is connected with the front section pipe body (11) and the extension section pipe body (12) through the second flange (22).

6. An electrically powered fan pressure equalizing tube exhaust apparatus according to claim 1 wherein, The communication pipe (1), flange (2) and elastic support (5) are made of Q235 steel, and the inner surface is coated with a 50-80 μm organic silicon heat-resistant coating.

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