Boiler centrifugal induced draft fan stable in operation

Abstract

The boiler centrifugal induced draft fan comprises a machine body and an output end arranged on one side of the machine body, a base is arranged at the bottom end of the machine body, a buffering mechanism is arranged in the base, a limiting ring matched with the machine body is arranged at the top end of the base, and the output end of the machine body is connected with the buffering mechanism. Sponge pads are arranged on the portions, close to the machine body, of the limiting rings. The device has the beneficial effects that a limiting ring is impacted by shaking of a machine body and then extrudes a connecting piece, then a connecting main body extrudes two supporting bodies, then the two supporting bodies extrude two stretching connecting rods, then the two stretching connecting rods extrude two compression springs, and therefore under the condition of continuous stress, the connecting piece and the connecting main body can be connected with the connecting main body; the push rod is pushed, then the abutting blocks are moved to abut against the inner wall of the base, the possibility that the base shakes along with the machine body is reduced, the stability of the machine body is improved, and the possibility that the machine body shakes is relieved by applying impact in the opposite direction into the base through the two abutting blocks.

Description

Technical Field

[0001] The utility model relates to the field of induced draft fans, in particular to a centrifugal induced draft fan for a boiler with stable operation. Background Art

[0002] The boiler induced draft fan is a machine that relies on the mechanical energy input by the electric motor to increase the gas pressure and discharge the gas. It is a driven fluid machine.

[0003] During actual use, the induced draft fan itself will shake to a certain extent, which will affect the normal use of the induced draft fan and may cause accidents to the induced draft fan itself.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a centrifugal induced draft fan for a boiler with stable operation to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A centrifugal induced draft fan for a boiler with stable operation comprises a body and an output end arranged on one side of the body, a base is arranged at the bottom end of the body, a buffer mechanism is arranged in the base, a limiting ring matching the body is arranged at the top end of the base, and sponge pads are arranged on the parts of the limiting rings close to the body.

[0008] Preferably, a groove capable of accommodating the limiting ring is formed at the top of the base, and an electric telescopic plate connected to the limiting ring is provided in the groove.

[0009] Preferably, the buffer mechanism includes a cross bar arranged in the base, the cross bar is sleeved with symmetrically arranged compression springs, two groups of compression springs are provided with tension connecting rods, the top ends of the two groups of tension connecting rods are provided with connecting pieces, and the top ends of the connecting pieces are provided with buffer blocks connected to the electric telescopic plates.

[0010] Preferably, the connecting member comprises a connecting body and a support symmetrically arranged at the bottom end of the connecting body, and the support is connected to the stretch connecting rod.

[0011] Preferably, both ends of the cross bar are provided with abutment blocks in contact with the inner wall of the base, the ends of the two groups of compression springs away from each other are provided with push rods connected to the abutment blocks, and both sides of the top of the cross bar are provided with sliding grooves for the push rods to slide.

[0012] Preferably, a baffle is provided at the junction of the push rod and the compression spring.

[0013] Preferably, a control panel is provided on the surface of the machine body.

[0014] Preferably, a non-slip rubber pad is provided at the bottom end of the base.

[0015] The beneficial effects of the utility model are as follows: the body generates shaking, and the limit ring is impacted by the body, which then squeezes the connecting piece, and then the connecting body squeezes the two groups of supports, and then the two groups of supports squeeze the two groups of stretching connecting rods, and then the two groups of stretching connecting rods squeeze the two groups of compression springs, and then under the condition of continuous force, the push rod is pushed, and then the stop block is moved to contact with the inner wall of the base, thereby reducing the possibility of the base shaking with the body, improving the stability of the body, and applying impact in the opposite direction to the base through the two groups of stop blocks to reduce the possibility of the body shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is an appearance diagram of a centrifugal induced draft fan for a boiler that operates smoothly according to an embodiment of the utility model;

[0018] Figure 2 It is a front cross-sectional view of a base of a centrifugal induced draft fan of a boiler with stable operation according to an embodiment of the utility model.

[0019] In the figure:

[0020] 1. Machine body; 2. Output terminal; 3. Base; 4. Limiting ring; 5. Groove; 6. Electric telescopic plate; 7. Cross bar; 8. Compression spring; 9. Tension connecting rod; 10. Connecting piece; 11. Connecting body; 12. Support body; 13. Block; 14. Push rod. DETAILED DESCRIPTION

[0021] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] According to an embodiment of the utility model, a centrifugal induced draft fan for a boiler with stable operation is provided.

[0023] Embodiment 1;

[0024] like Figure 1 As shown, a centrifugal induced draft fan for a boiler with stable operation according to an embodiment of the utility model comprises a body 1 and an output end 2 arranged on one side of the body 1, a base 3 is provided at the bottom end of the body 1, a buffer mechanism is provided in the base 3, a limiting ring 4 matching the body 1 is provided at the top end of the base 3, parts of the limiting ring 4 close to the body 1 are provided with sponge pads, a groove 5 for accommodating the limiting ring 4 is provided at the top end of the base 3, an electric telescopic plate 6 connected to the limiting ring 4 is provided in the groove 5, a control panel is provided on the surface of the body 1, and an anti-slip rubber pad is provided at the bottom end of the base 3.

[0025] Embodiment 2:

[0026] like Figure 2 As shown, the buffer mechanism includes a cross bar 7 arranged in the base 3, on which a symmetrically arranged compression spring 8 is sleeved, and two groups of the compression springs 8 are provided with a stretching connecting rod 9, and a connecting piece 10 is provided at the top of the two groups of the stretching connecting rods 9, and a buffer block connected to the electric telescopic plate 6 is provided at the top of the connecting piece 10, and the connecting piece 10 includes a connecting body 11 and a support 12 symmetrically arranged at the bottom end of the connecting body 11, and the support 12 is connected to the stretching connecting rod 9, and both ends of the cross bar 7 are provided with a stop block 13 in contact with the inner wall of the base 3, and the ends of the two groups of compression springs 8 away from each other are provided with a push rod 14 connected to the stop block 13, and both sides of the top of the cross bar 7 are provided with a slide groove for the push rod 14 to slide, and a baffle is provided at the junction of the push rod 14 and the compression spring 8.

[0027] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0028] In actual application, after starting the body 1, shaking occurs through the body 1, and at the same time, the limit ring 4 is impacted by the body 1, and then the connecting piece 10 is squeezed, and then the connecting body 11 squeezes the two groups of supports 12, and then the two groups of supports 12 squeeze the two groups of tensile connecting rods 9, and then the two groups of tensile connecting rods 9 squeeze the two groups of compression springs 8, and then under the condition of continuous force, the push rod 14 is pushed, and then the stop block 13 is moved to contact the inner wall of the base 3, thereby reducing the possibility of the base 3 shaking with the body 1, improving the stability of the fuselage, and applying impact in the opposite direction to the base 3 through the two groups of stop blocks 13 to reduce the possibility of shaking of the body 1.

[0029] To sum up, with the help of the above-mentioned technical scheme of the utility model, the body 1 is shaken, and the limit ring 4 is impacted by the body 1, and then the connecting piece 10 is squeezed, and then the connecting body 11 squeezes the two groups of supports 12, and then the two groups of supports 12 squeeze the two groups of tensile connecting rods 9, and then the two groups of tensile connecting rods 9 squeeze the two groups of compression springs 8, and then under the condition of continuous force, the push rod 14 is pushed, and then the stop block 13 is moved to contact with the inner wall of the base 3, thereby reducing the possibility of the base 3 shaking with the body 1, improving the stability of the fuselage, and applying an impact in the opposite direction to the base 3 through the two groups of stop blocks 13 to reduce the possibility of shaking of the body 1.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal induced draft fan for a boiler with stable operation, characterized in that: The invention comprises a body (1) and an output end (2) arranged at one side of the body (1); a base (3) is arranged at the bottom end of the body (1); a groove (5) capable of accommodating a limiting ring (4) is provided at the top end of the base (3); an electric telescopic plate (6) connected to the limiting ring (4) is arranged in the groove (5); a buffer mechanism is arranged in the base (3); the buffer mechanism comprises a cross bar (7) arranged in the base (3); symmetrically arranged compression springs (8) are sleeved on the cross bar (7); two groups of the compression springs (8) are provided with stretching connecting rods (9); the top ends of the two groups of the stretching connecting rods (9) are provided with connecting pieces (10); the top ends of the connecting pieces (10) are provided with buffer blocks connected to the electric telescopic plate (6); a limiting ring (4) matching the body (1) is provided at the top end of the base (3); a sponge pad is provided on the part of the limiting ring (4) close to the body (1).

2. A centrifugal induced draft fan for a boiler with stable operation according to claim 1, characterized in that: The connecting member (10) comprises a connecting body (11) and a support (12) symmetrically arranged at the bottom end of the connecting body (11), and the support (12) is connected to the stretching connecting rod (9).

3. The centrifugal induced draft fan for a boiler with stable operation according to claim 1, characterized in that: Both ends of the cross bar (7) are provided with abutment blocks (13) in contact with the inner wall of the base (3); the ends of the two groups of compression springs (8) that are away from each other are provided with push rods (14) connected to the abutment blocks (13); and both sides of the top end of the cross bar (7) are provided with sliding grooves for the push rods (14) to slide.

4. A stable-running boiler centrifugal induced draft fan according to claim 3, characterized in that: A baffle is provided at the junction of the push rod (14) and the compression spring (8).

5. The centrifugal induced draft fan for a boiler with stable operation according to claim 1, characterized in that: A control panel is provided on the surface of the machine body (1).

6. The centrifugal induced draft fan for a boiler with stable operation according to claim 1, characterized in that: The bottom end of the base (3) is provided with an anti-slip rubber pad.

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