Air supply device of boiler and power station boiler

Abstract

The utility model discloses an air supply device of a boiler and a power station boiler, and relates to the technical field of boiler equipment.The air supply device of the boiler comprises a fan and a connecting structure, the two sides of the fan are connected with an air inlet pipe and an air outlet pipe respectively, an air inlet is formed in the end, away from the fan, of the air inlet pipe, and an air outlet is formed in the end, away from the fan, of the air outlet pipe; the connecting structure comprises an elastic pipe and an adjusting assembly, a connecting end and a sleeving end are formed at the two ends of the elastic pipe respectively, the connecting end communicates with the air outlet, and the adjusting assembly is arranged at the sleeving end and used for adjusting the pipe diameter of the sleeving end so that the sleeving end can be connected outside the air supply pipe in a sleeving mode and communicates with the air supply pipe. According to the air supply device, the pipe diameter of the sleeving end is adjusted by arranging the adjusting assembly, the air supply pipes with different pipe diameters can be sleeved with the elastic pipe, it is ensured that the elastic pipe can be tightly connected with the air supply pipes with different pipe diameters, and therefore it is ensured that the air supply device has the good air supply effect, and the adaptability and universality of the air supply device are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to an air supply device of a boiler and a power station boiler. Background Art

[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy and electrical energy in the fuel, and the boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. When the boiler is in use, it is usually necessary to use a fan to send air into the boiler to complete the boiler's air intake. However, the air outlet sizes of different boilers are different. The size of ordinary fan connectors is usually fixed and has poor adaptability, which leads to air leakage when the fan and air outlet are connected, and the sealing is poor, which in turn affects the air supply effect. Utility Model Content

[0003] The main purpose of the utility model is to provide an air supply device for a boiler and a power station boiler, aiming to solve the technical problems in the prior art that the fan and the boiler air supply port have poor adaptability and poor sealing when connected, which affects the air supply effect.

[0004] To achieve the above-mentioned purpose, the utility model provides an air supply device for a boiler, the air supply device is applied to the boiler, the boiler is provided with an air supply pipe, the air supply device includes a fan and a connecting structure, the two sides of the fan are respectively connected with an air inlet pipe and an air outlet pipe, the end of the air inlet pipe away from the fan forms an air inlet, and the end of the air outlet pipe away from the fan forms an air outlet; the connecting structure includes an elastic tube and an adjusting component, the two ends of the elastic tube respectively form a connecting end and a sleeve end, the connecting end is communicated with the air outlet, the adjusting component is arranged at the sleeve end and is used to adjust the pipe diameter of the sleeve end so that the sleeve end can be sleeved on the outside of the air supply pipe and communicate with the air supply pipe.

[0005] In one embodiment, the adjustment assembly includes a plurality of adjustment rods and a plurality of connecting blocks, the plurality of adjustment rods are spaced apart along the circumference of the elastic tube, each of the adjustment rods extends along the circumference of the elastic tube, and each of the adjustment rods is sequentially provided with a plurality of connecting positions along its extension direction; the plurality of adjustment rods and the plurality of connecting blocks are alternately connected to form a connecting ring, the connecting ring is connected to the sleeve end, and the connecting ring is used to be sleeved on the outside of the air supply pipe; the connecting block can be connected to any of the connecting positions on the adjacent adjustment rods to adjust the pipe diameter of the sleeve end through the connecting ring.

[0006] In one embodiment, each of the adjusting rods is sequentially provided with a plurality of limiting grooves along its extension direction, each limiting groove forms a connecting position, and the connecting block can be connected to any limiting groove on the adjacent adjusting rod through a fastening assembly.

[0007] In one embodiment, the end of the connecting block forms a connecting cavity for inserting the adjusting rod, and a limiting hole that passes through the connecting cavity is opened on the side wall of the connecting block. The fastening assembly includes a limiting column, which can pass through the limiting hole and extend into any of the limiting grooves to fasten the connecting block to the adjusting rod.

[0008] In one embodiment, the fastening assembly also includes an elastic member, wherein the two ends of the elastic member are respectively a first end and a second end, the first end is arranged close to the limiting groove, and the second end is arranged away from the limiting groove, the hole wall of the limiting hole is provided with an accommodating cavity for accommodating the elastic member, and the hole wall of the limiting hole is formed with a stopper, the first end is connected to the limiting column, and the second end abuts against the stopper on one side of the limiting groove.

[0009] In one embodiment, the elastic member is a spring, and the spring is sleeved outside the limiting column.

[0010] In one embodiment, a pull ring is provided at one end of the limiting column away from the limiting groove.

[0011] In one embodiment, a filter is installed at the air inlet.

[0012] In one embodiment, the cross-sectional area of ​​the elastic tube is gradually expanded from the connecting end to the sleeve end.

[0013] The utility model also provides a power station boiler, which is applied with the above-mentioned air supply device.

[0014] The utility model provides an air supply device for a boiler and a power station boiler. The air supply device is provided with an elastic tube between an air outlet pipe of a fan and an air supply pipe of the boiler. The air outlet pipe is connected with the air supply pipe through the elastic tube. An adjusting component is provided at the sleeve end of the elastic tube to adjust the pipe diameter of the sleeve end, so that the elastic tube can be sleeved on the outside of air supply pipes with different pipe diameters, ensuring that the elastic tube and the air supply pipes with different pipe diameters can maintain a tight connection, thereby ensuring that the air supply device has a good air supply effect and effectively improving the adaptability and versatility of the air supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0016] Figure 1A schematic structural diagram of an embodiment of an air supply device for a boiler provided by the utility model;

[0017] Figure 2 A structural schematic diagram of an embodiment of a connection structure of an air supply device of a boiler provided by the utility model;

[0018] Figure 3 A schematic cross-sectional view of an embodiment of a connection structure of an air supply device of a boiler provided by the utility model;

[0019] Figure 4 The utility model is a schematic cross-sectional structure diagram of a fan of an embodiment of an air supply device for a boiler provided by the utility model.

[0020] Description of Figure Numbers:

[0021] 1. Boiler; 2. Air supply pipe; 3. Fan; 4. Air inlet pipe; 6. Air outlet pipe; 7. Connecting chamber; 401. Filter; 601. Connecting block; 602. Adjusting rod; 603. Elastic tube; 701. Accommodating chamber; 702. Limiting column; 703. Limiting groove; 704. Elastic member; 705. Limiting hole; 706. Pull ring.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] At present, the air outlet sizes of different boilers are different. The size of ordinary fan connectors is usually fixed and has poor adaptability, which leads to air leakage when the fan and the air outlet are connected, and the sealing is poor, which in turn affects the air supply effect.

[0027] The utility model proposes an air supply device for a boiler 1, which is applied to the boiler 1. The boiler 1 is provided with an air supply pipe 2. The air supply device comprises a fan 3 and a connecting structure. The two sides of the fan 3 are respectively connected with an air inlet pipe 4 and an air outlet pipe 6. The end of the air inlet pipe 4 away from the fan 3 forms an air inlet, and the end of the air outlet pipe 6 away from the fan 3 forms an air outlet; the connecting structure comprises an elastic tube 603 and an adjusting component. The two ends of the elastic tube 603 respectively form a connecting end and a sleeve end. The connecting end is communicated with the air outlet. The adjusting component is arranged at the sleeve end and is used to adjust the pipe diameter of the sleeve end so that the sleeve end can be sleeved on the outside of the air supply pipe 2 and communicate with the air supply pipe 2.

[0028] See also Figure 1 The air inlet pipe 4 and the air outlet pipe 6 are respectively connected to both sides of the fan 3 to ensure smooth flow of gas. The air outlet pipe 6 of the fan 3 is connected to the elastic pipe 603. The elastic pipe 603 is sleeved on the outside of the air supply pipe 2 through the adjustment component to supply air to the boiler 1 through the fan 3. The elastic pipe 603 is elastic. When the diameter of the sleeve end is adjusted by the adjustment component, the elastic pipe 603 is elastically deformed to achieve a change in the diameter, so as to maintain a tight connection between the elastic pipe 603 and the adjustment component.

[0029] The air supply device of the boiler 1 proposed by the utility model is provided with an elastic tube 603 between the air outlet pipe 6 of the fan 3 and the air supply pipe 2 of the boiler 1, the air outlet pipe 6 is connected with the air supply pipe 2 through the elastic tube 603, and an adjustment component is provided at the sleeve end of the elastic tube 603 to adjust the tube diameter of the sleeve end, so that the elastic tube 603 can be sleeved on the outside of the air supply pipe 2 with different tube diameters, ensuring that the elastic tube 603 and the air supply pipe 2 with different tube diameters can maintain a tight connection, thereby ensuring that the air supply device has a good air supply effect, and effectively improving the adaptability and versatility of the air supply device.

[0030] In one embodiment, the adjustment component includes a plurality of adjustment rods 602 and a plurality of connecting blocks 601, the plurality of adjustment rods 602 are distributed at intervals along the circumference of the elastic tube 603, each adjustment rod 602 extends along the circumference of the elastic tube 603, and each adjustment rod 602 is sequentially provided with a plurality of connecting positions along its extension direction; the plurality of adjustment rods 602 and the plurality of connecting blocks 601 are alternately connected to form a connecting ring, the connecting ring is connected to the sleeve end, and the connecting ring is used to be sleeved on the outside of the air supply pipe 2; the connecting block 601 can be connected to any connecting position on the adjacent adjustment rod 602 to adjust the pipe diameter of the sleeve end through the connecting ring.

[0031] It can be explained that any two adjacent adjusting rods 602 are connected by a connecting block 601, and an adjusting rod 602 is connected between any two adjacent connecting blocks 601. The connecting block 601 can be connected to any connecting position on the adjusting rod 602. By adjusting the connecting block 601 to connect to different connecting positions, the tube diameter of the connecting ring can be adjusted, and thus the tube diameter of the sleeve end can be adjusted through the connecting ring, and the adjustment is convenient, thereby ensuring that the elastic tube 603 and the air supply pipe 2 of different diameters can maintain a tight connection, effectively improving the versatility of the air supply device.

[0032] In one embodiment, see Figure 2 The adjustment component includes four adjustment rods 602 and four connecting blocks 601. The connecting ring is in a square shape. The four connecting blocks 601 are respectively located at the four corners of the connecting ring, and each connecting block 601 extends toward the elastic tube 603 to form an extension plate. The elastic tube 603 is connected to the four extension plates to provide support for the elastic tube 603 through the four extension plates.

[0033] In one embodiment, each adjusting rod 602 is sequentially provided with a plurality of limiting grooves 703 along its extension direction, each limiting groove 703 forms a connection position, and the connecting block 601 can be connected to any limiting groove 703 on the adjacent adjusting rod 602 through a fastening assembly.

[0034] See also Figure 2A plurality of limiting grooves 703 are arranged at intervals along the extension direction of the adjusting rod 602. The two connecting blocks 601 at both ends of the adjusting rod 602 can be connected to different limiting grooves 703 on the adjusting rod 602 to adjust the distance between the two connecting blocks 601, so as to facilitate precise adjustment of the diameter of the connecting ring and to keep the diameter of the connecting ring fixed after the adjustment is completed, thereby ensuring that the diameter of the elastic tube 603 is fixed.

[0035] In one embodiment, the end of the connecting block 601 forms a connecting cavity 7 for inserting the adjusting rod 602, and a limiting hole 705 that passes through the connecting cavity 7 is opened on the side wall of the connecting block 601. The fastening assembly includes a limiting column 702, which can pass through the limiting hole 705 and extend into any limiting groove 703 to fasten the connecting block 601 to the adjusting rod 602.

[0036] Furthermore, the two ends of the adjusting rod 602 extend into the connecting cavity 7 of the two connecting blocks 601 respectively, and the distance between the two connecting blocks 601 is adjusted by adjusting the length of the adjusting rod 602 extending into the connecting cavity 7, so as to facilitate the adjustment of the pipe diameter of the connecting ring. By aligning the limiting hole 705 with the limiting groove 703, the limiting column 702 passes through the limiting hole 705 and then extends into the limiting groove 703, so that the adjusting rod 602 and the connecting block 601 are kept fixed by the limiting column 702, and the connecting ring structure can be kept stable during the use of the air supply device, thereby ensuring that the pipe diameter of the elastic tube 603 is fixed, and ensuring that the elastic tube 603 is tightly sleeved outside the air supply pipe 2. By aligning the limiting hole 705 with different limiting grooves 703, and extending the limiting column 702 into different limiting grooves 703, the pipe diameter of the connecting ring can be adjusted.

[0037] In one embodiment, the fastening assembly also includes an elastic member 704, and the two ends of the elastic member 704 are respectively a first end and a second end. The first end is arranged close to the limiting groove 703, and the second end is arranged away from the limiting groove 703. The hole wall of the limiting hole 705 is provided with a accommodating cavity 701 for accommodating the elastic member 704. The hole wall of the limiting hole 705 is formed with a stop block, the first end is connected to the limiting column 702, and the second end abuts against the side of the stop block toward the limiting groove 703.

[0038] See also Figure 3, the aperture of the middle of the limiting hole 705 is larger than the aperture of the two sides, so that the middle of the limiting hole 705 forms a receiving cavity 701, and two blocks are formed on both sides of the hole wall of the limiting hole 705, so as to keep the elastic member 704 in the receiving cavity 701. The first end of the elastic member 704 is connected to the limiting column 702. When the diameter of the elastic tube 603 is adjusted, the limiting column 702 is pulled out of the limiting groove 703 by applying an external force to the second end. The elastic member 704 applies an elastic force toward the limiting groove 703 to the limiting column 702. When the external force is removed, the limiting column 702 extends into the limiting groove 703 under the elastic force of the elastic member 704 to achieve the reset of the limiting column 702, and keeps the limiting column 702 in the limiting groove 703 during the use of the air supply device, so as to ensure that the diameter of the elastic tube 603 is fixed.

[0039] In one embodiment, the elastic member 704 is a spring, and the spring is sleeved outside the limiting column 702. Further, both ends of the spring can abut against the stoppers on both sides of the hole wall of the limiting hole 705, and the middle part of the spring is sleeved with the limiting column 702, thereby effectively saving the installation area of ​​the fastening assembly, and being easy to install and maintain.

[0040] In one embodiment, a pull ring 706 is disposed at one end of the limiting column 702 away from the limiting groove 703. Figure 3 The setting of the pull ring 706 makes it easy for the operator to pull out the limiting column 702 from the limiting groove 703, so as to adjust the pipe diameter of the connecting ring.

[0041] In one embodiment, a filter 401 is installed at the air inlet. Figure 4 The filter 401 is installed on the inner wall of the air inlet. The filter 401 can effectively filter the gas from the boiler 1 and remove impurities in the gas, thereby protecting the fan 3 and the inside of the boiler 1 from wear and blockage and improving the combustion efficiency of the boiler 1.

[0042] In one embodiment, the cross-sectional area of ​​the elastic tube 603 is gradually expanded from the connection end to the sleeve end. It can be understood that the cross-sectional area of ​​the elastic tube 603 is gradually expanded from the connection end to the sleeve end, so that the gas flowing out of the fan 3 flows into the boiler 1, which helps to reduce the turbulence and pressure loss of the gas in the pipeline, making the gas flow smoother and improving the air supply efficiency.

[0043] The utility model also proposes a power station boiler, which includes an air supply device for the boiler. The specific structure of the air supply device refers to the above-mentioned embodiment. Since the power station boiler adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0044] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A boiler air supply device, characterized in that: The boiler is provided with an air supply pipe, and the air supply device comprises: A fan, wherein two sides of the fan are respectively connected with an air inlet pipe and an air outlet pipe, an end of the air inlet pipe away from the fan forms an air inlet, and an end of the air outlet pipe away from the fan forms an air outlet; A connecting structure, the connecting structure includes an elastic tube and an adjusting component, the two ends of the elastic tube respectively form a connecting end and a sleeve end, the connecting end is connected to the air outlet, the adjusting component is arranged at the sleeve end and is used to adjust the tube diameter of the sleeve end so that the sleeve end can be sleeved on the outside of the air supply pipe and connected to the air supply pipe.

2. The air supply device for a boiler according to claim 1, characterized in that: The adjustment assembly includes a plurality of adjustment rods and a plurality of connecting blocks, wherein the plurality of adjustment rods are spaced apart along the circumference of the elastic tube, each of the adjustment rods extends along the circumference of the elastic tube, and each of the adjustment rods is sequentially provided with a plurality of connecting positions along its extending direction; the plurality of adjustment rods and the plurality of connecting blocks are alternately connected to form a connecting ring, the connecting ring is connected to the sleeve end, and the connecting ring is used to be sleeved on the outside of the air supply pipe; the connecting block can be connected to any of the connecting positions on the adjacent adjustment rods to adjust the pipe diameter of the sleeve end through the connecting ring.

3. The air supply device for a boiler according to claim 2, characterized in that: Each of the adjusting rods is sequentially provided with a plurality of limiting grooves along its extending direction, each of the limiting grooves forms a connecting position, and the connecting block can be connected to any limiting groove on the adjusting rod adjacent thereto through a fastening assembly.

4. The air supply device for a boiler according to claim 3, characterized in that: The end of the connecting block forms a connecting cavity for the adjusting rod to be inserted, and a limiting hole that passes through the connecting cavity is opened on the side wall of the connecting block. The fastening assembly includes a limiting column, which can pass through the limiting hole and extend into any of the limiting grooves to fasten the connecting block to the adjusting rod.

5. The air supply device for a boiler according to claim 4, characterized in that: The fastening assembly also includes an elastic member, the two ends of the elastic member are respectively a first end and a second end, the first end is arranged close to the limiting groove, and the second end is arranged away from the limiting groove, the hole wall of the limiting hole is provided with an accommodating cavity for accommodating the elastic member, the hole wall of the limiting hole is formed with a stopper, the first end is connected to the limiting column, and the second end abuts against the stopper on one side of the limiting groove.

6. The air supply device for a boiler according to claim 5, characterized in that: The elastic member is a spring, and the spring is sleeved outside the limiting column.

7. The air supply device for a boiler according to claim 4, characterized in that: A pull ring is arranged at one end of the limiting column away from the limiting groove.

8. The air supply device for a boiler according to any one of claims 1 to 7, characterized in that: A filter is installed at the air inlet.

9. The air supply device for a boiler according to any one of claims 1 to 7, characterized in that: The cross-sectional area of ​​the elastic tube is gradually expanded from the connecting end to the sleeve end.

10. A power station boiler, characterized in that: The invention is applied with the air supply device as claimed in any one of claims 1 to 9.

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