CN212429311U

CN212429311U - Air inlet box

Info

Publication number: CN212429311U
Application number: CN202021202005.XU
Authority: CN
Inventors: 王汉新
Original assignee: Nantong Jiugangtong Machinery Technology Co Ltd
Current assignee: Nantong Jiugangtong Machinery Technology Co Ltd
Priority date: 2020-06-27
Filing date: 2020-06-27
Publication date: 2021-01-29
Anticipated expiration: 2030-06-27

Abstract

The application discloses air inlet box, including hollow box, the box is provided with air intake and air outlet, many reinforced pipes that the inboard fixedly connected with interval of box set up, the reinforced pipe is located the inside one side that is close to the air intake of box, the length direction of reinforced pipe is parallel with the width direction of air intake, the box is including relative first curb plate and the second curb plate that sets up, the supporting seat includes stay tube and base, stay tube and box fixed connection, the one end fixedly connected with base of box is kept away from to the stay tube, one side that the base dorsad was located the box, the axis of one of them stay tube intersects and perpendicular with the axis of bearing, the bearing sets up with the air outlet relatively, one side that the box is fixed with the bearing is provided with the access hole, the sealed lid of access hole. Through setting up the access hole at the box, the sealed lid of access hole has closed the apron, when overhauing the inlet box, removes the apron, just can overhaul the inlet box inside from the access hole, is convenient for overhaul the inlet box.

Description

Air inlet box

Technical Field

The utility model relates to a fan field especially relates to an air inlet box.

Background

The air inlet box is preferably not used from the viewpoint of efficiency, but the air inlet box is an essential component for primary, secondary and induced draft fans used in large power stations because the selected air inlet box is in a double-suction double-support structural form.

When the existing air inlet box breaks down and is overhauled, the air inlet box needs to be completely dismantled, and the overhauling is very inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies or inadequacies in the prior art, it would be desirable to provide an intake box that is easy to service.

In a first aspect, the air intake box of the present invention comprises a hollow box body, wherein the box body is provided with an air inlet and an air outlet, the inner side of the box body is fixedly connected with a plurality of reinforcing pipes arranged at intervals, the reinforcing pipes are positioned at one side close to the air inlet inside the box body, the length direction of the reinforcing pipes is parallel to the width direction of the air inlet, the box body comprises a first side plate and a second side plate which are oppositely arranged, one end of each reinforcing pipe is fixedly connected with the first side plate, the other end of each reinforcing pipe is fixedly connected with the second side plate, the box body is fixedly connected with a bearing, one side of the box body is fixedly connected with a plurality of supporting seats at intervals, each supporting seat comprises a supporting pipe and a base, the supporting pipe is fixedly connected with the box body, one end of the supporting pipe, far away from the box body, the axis of one of them stay tube with the axis of bearing is crossing and perpendicular, the bearing with the air outlet sets up relatively, the box is fixed with one side of bearing is provided with the access hole, the sealed lid of access hole has closed the apron.

According to the technical scheme that this application embodiment provided, through setting up the access hole at the box, the sealed lid of access hole has closed the apron, when overhauing the inlet box, removes the apron, just can overhaul the inlet box inside from the access hole, is convenient for overhaul the inlet box.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural view of an intake box according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cover plate of an intake box according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an intake box according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a support seat of an intake box according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an intake box according to an embodiment of the present invention;

fig. 6 is an enlarged partial sectional view taken at a in fig. 5.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 6, the intake box of the present invention includes a hollow box 10, the box 10 is provided with an air inlet 11 and an air outlet 12, the inner side of the box 10 is fixedly connected with a plurality of reinforcing pipes 15 arranged at intervals, the reinforcing pipes 15 are located at one side of the box 10 close to the air inlet 11, the length direction of the reinforcing pipes 15 is parallel to the width direction of the air inlet 11, the box 10 includes a first side plate 13 and a second side plate 14 arranged oppositely, one end of the reinforcing pipes 15 is fixedly connected with the first side plate 13, the other end is fixedly connected with the second side plate 14, the box 10 is fixedly connected with a bearing 21, one side of the box 10 is fixedly connected with a plurality of supporting seats 22 at intervals, the supporting seats 22 include a supporting pipe 23 and a base 24, the supporting pipe 23 is fixedly connected with the box 10, one end of the supporting pipe 23 far from the box 10 is fixedly connected with, the axis of one of the support tubes 23 intersects and is perpendicular to the axis of the bearing 21, the bearing 21 is arranged opposite to the air outlet 12, an access opening is arranged at one side of the box body 10 where the bearing 21 is fixed, and a cover plate 30 is covered on the access opening in a sealing manner.

In the embodiment of the present invention, the wind flows through the hollow box, specifically, the wind flows into the box from the wind inlet, and then flows out of the box from the wind outlet. The shape of air intake is unanimous with the pipeline usually, and the air intake is the rectangle, and the air outlet is circular, and in fan working process, the long limit one side of air intake produces easily and warp, also is that great deformation can take place for first curb plate and second curb plate exactly, through setting up many reinforced pipes in that the box is inside, reduces the deformation volume of box, and then reduces the box and warp the influence to fan work efficiency. The distance between the plurality of reinforcement pipes and the air inlet can be, but is not limited to, equal. The box body is fixedly connected with an outer ring of a bearing, an inner ring of the bearing is fixedly connected with an engine rotating shaft, the engine drives the rotating shaft to rotate to drive the impeller to rotate, and the box body is used for supporting the engine rotating shaft. The supporting seat is fixed with the box body, and the supporting seat is fixed on the ground through a bolt, so that the purpose of fixing the box body is achieved. The supporting seat comprises a supporting tube and a base, the base is directly fixed to the ground, the supporting seat is fixed to the ground conveniently by the aid of the base, and installation difficulty is reduced. One side that the base is the box dorsad is located the coplanar for all bases homoenergetic and ground form the face contact, have guaranteed the joint strength on base and ground. The bearing is fixed with the rotating shaft, the rotating shaft is fixed with the impeller, the bearing bears the gravity of the impeller part, the axis of one supporting tube is intersected and perpendicular to the axis of the bearing, the supporting force of the supporting tube on the box body can be extended to the axis of the bearing, in the rotating process of the rotating shaft, the stress of the air inlet box is more balanced, the shake of the air inlet box is reduced, unnecessary abrasion of the bearing is avoided, the service life of the bearing is guaranteed, and the reliability of the fan is improved.

When needs overhaul inlet box inner structure, can remove the apron, expose the access hole, overhaul inlet box inner structure through the access hole, of course, overhaul inlet box inner structure through the access hole and only be directed against the condition that little problem appears in inlet box inner structure, if great problem appears in the inlet box, still need take the inlet box apart to maintain. The access hole can supply the workman to observe and maintain inlet box inner structure, greatly reduced maintain the degree of difficulty and maintenance cost. When the air inlet box breaks down, the cover plate can be removed, workers can check the internal structure of the air inlet box, and then whether the air inlet box needs to be dismantled for maintenance or not is judged on the next step. The access hole is connected with the cover plate in a sealing way, so that the air tightness of the air inlet box is ensured when the fan works normally.

Further, the cover 30 includes a first side 31, a second side 32, a third side 33 and a fourth side 34 sequentially arranged, the first side 31 is rotatably connected with the case 10, and the second side 32, the third side 33 and the fourth side 34 are detachably and fixedly connected with the case 10.

The utility model discloses an in the embodiment, first limit sets up with the third is relative, and the second limit sets up with the fourth side is relative, and first limit is rotated with the box and is connected, and second limit, third and fourth side all with box detachably fixed connection, when needs remove the apron, second limit, third and fourth side all separate with the box, and the apron can rotate round first limit, avoids apron and box separation, has guaranteed the security that the workman overhauld.

Further, the second side 32, the third side 33 and the fourth side 34 are all screwed with the case 10. Simple structure, reliable connection and convenient disassembly and assembly.

Further, the box body 10 is fixedly connected with a rotating shaft 35, the rotating shaft 35 is rotatably connected with a rotating sheet 36, and the rotating sheet 36 is fixedly connected with the cover plate 30. Simple structure and convenient processing and manufacturing.

Further, a handle 37 is fixedly connected to a side of the cover 30 facing away from the box 10.

The embodiment of the utility model provides an in, when rotating the apron, the workman can hold the handle with the hand, and the pulling apron rotates, and the workman of being convenient for operates.

Furthermore, two ends of the reinforcing pipe 15 are respectively fixedly connected with an annular cushion block 16, the annular cushion blocks 16 are fixedly connected with the box body 10, the annular cushion blocks 16 are provided with circular through holes 17, the end part of the reinforcing pipe 15 extends into the circular through holes 17, and a telescopic gap 18 is arranged between the end part of the reinforcing pipe 15 and the box body 10.

The utility model discloses an in the embodiment, connect reinforced pipe and box through annular cushion, increased the connection area between reinforced pipe and the box, improved the joint strength between reinforced pipe and the box, reduced local pressure. The end part of the reinforcing pipe extends into the circular through hole, so that the connection strength between the reinforcing pipe and the annular cushion block can be ensured. A telescopic gap is arranged between the end part of the reinforcing pipe and the box body, so that the influence of expansion with heat and contraction with cold on the connection part of the box body and the reinforcing pipe is buffered, and the reliability of the reinforcing device is improved.

Furthermore, the width of the telescopic gap 18 is 5-7 mm, and the thickness of the annular cushion block 16 is 11-13 mm.

Further, the width of the telescopic gap 18 is 6mm, and the thickness of the annular cushion block 16 is 12 mm.

The utility model discloses an in the embodiment, the reasonable thickness that sets up annular cushion and the width in flexible clearance, under the intensity prerequisite of guaranteeing to strengthen the device, the manufacturing cost of device is strengthened in the control.

Further, the annular cushion block 16 is welded and fixed with the box body 10, and the annular cushion block 16 is welded and fixed with the reinforcing pipe 15. The connection strength between the annular cushion block and the box body and the connection strength between the annular cushion block and the reinforcing pipe are ensured, and the annular cushion block is convenient to process and manufacture.

Further, two reinforcing pipes 15 are fixedly connected to the inner side of the box body 10. On the premise of ensuring the strength of the air inlet box, the manufacturing cost of the air inlet box is controlled.

Furthermore, at least three reinforcing plates 25 are fixedly connected to the outer side of the supporting tube 23 at intervals along the circumferential direction, the reinforcing plates 25 are perpendicular to the supporting tube 23, the reinforcing plates 25 are fixedly connected with the base 24, and the angles between any two adjacent reinforcing plates 25 are equal.

The utility model discloses an in the embodiment, the reinforcing plate plays the effect that increases joint strength between stay tube and the base, has improved the intensity of supporting seat.

Further, the reinforcing plate 25 is perpendicular to the base 24. The reinforcing plate can be stressed along the length direction of the reinforcing plate, and the strength of the supporting seat is guaranteed.

Further, four reinforcing plates 25 are fixedly connected to the outer side of the support tube 23 at intervals along the circumferential direction thereof. Under the prerequisite of guaranteeing supporting seat intensity, rationally set up the quantity of reinforcing plate, can reduce manufacturing cost.

Further, the reinforcing plate 25 is welded to the base 24, and the support tube 23 is welded to the reinforcing plate 25.

The utility model discloses an in the embodiment, guaranteed reinforcing plate and base joint strength, guaranteed stay tube and reinforcing plate joint strength to be convenient for manufacturing.

Further, the base 24 is provided with a plurality of through holes 26.

The utility model discloses an in the embodiment, the through-hole supplies the bolt to pass, is convenient for fix the base subaerial, can be but not limited to set up four through-holes to be provided with the through-hole between two adjacent reinforcing plates, make the base atress more reasonable.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. An air inlet box is characterized by comprising a hollow box body, wherein the box body is provided with an air inlet and an air outlet, the inner side of the box body is fixedly connected with a plurality of reinforcing pipes which are arranged at intervals, the reinforcing pipes are positioned at one side of the interior of the box body, which is close to the air inlet, the length direction of the reinforcing pipes is parallel to the width direction of the air inlet, the box body comprises a first side plate and a second side plate which are arranged oppositely, one end of each reinforcing pipe is fixedly connected with the first side plate, the other end of each reinforcing pipe is fixedly connected with the second side plate, the box body is fixedly connected with a bearing, one side of the box body is fixedly connected with a plurality of supporting seats at intervals, each supporting seat comprises a supporting pipe and a base, the supporting pipes are fixedly connected with the box body, one end of each supporting pipe, which is far away, the axis of one of them stay tube with the axis of bearing is crossing and perpendicular, the bearing with the air outlet sets up relatively, the box is fixed with one side of bearing is provided with the access hole, the sealed lid of access hole has closed the apron.

2. The intake box of claim 1, wherein the cover plate includes a first side, a second side, a third side, and a fourth side arranged in sequence, the first side being rotatably connected to the box body, and the second side, the third side, and the fourth side being fixedly and detachably connected to the box body.

3. The intake box of claim 2, wherein the second, third, and fourth edges are each in threaded engagement with the box body.

4. The intake box of claim 2, wherein the box body is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with a rotating sheet, and the rotating sheet is fixedly connected with the cover plate.

5. The intake box of claim 1, wherein a handle is fixedly attached to a side of the cover plate facing away from the box body.

6. The intake box of claim 1, wherein the reinforcing pipe is fixedly connected at its two ends with annular spacers respectively, the annular spacers are fixedly connected with the box body, the annular spacers are provided with circular through holes, the end portions of the reinforcing pipe extend into the circular through holes, and a telescopic gap is provided between the end portions of the reinforcing pipe and the box body.

7. The intake box of claim 1, wherein at least three reinforcing plates are fixedly connected to the outer side of the support tube at intervals along the circumferential direction thereof, the reinforcing plates are perpendicular to the support tube, the reinforcing plates are fixedly connected to the base, and the angles between any two adjacent reinforcing plates are equal.