Shock wave soot blower of boiler SCR (Selective Catalytic Reduction) reaction chamber

Abstract

The utility model discloses a shock wave soot blower for a boiler SCR (Selective Catalytic Reduction) reaction chamber, which comprises a pulse tank and a sleeve communicated with an air outlet end of the pulse tank, the first annular piece is rotationally mounted in the sleeve; the air outlet pipes are both arranged below the first annular piece; one end of the three-way valve is communicated with the first annular piece, and the other two ends of the three-way valve are respectively communicated with the pair of air outlet pipes; the multiple air spraying openings are formed in the outer surfaces of the pair of air outlet pipes correspondingly, under the action of the sleeve, the first annular piece, the air outlet pipes and the three-way valve, air in the pulse tank can be sprayed out of the air spraying openings, soot blowing can be conducted on the inner wall of the boiler, the heat efficiency and operation reliability of the boiler are improved, soot on the heated surface falls off, and the service life of the boiler is prolonged. Therefore, smoke exhaust temperature is reduced, heat efficiency of the boiler is improved, and convenience is brought to people.

Description

Technical Field

[0001] The utility model relates to the technical field of sootblowing equipment, in particular to a shock wave sootblower for a boiler SCR reaction chamber. 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.

[0003] In the prior art, the sootblowing working space of conventional steam sootblower, gas shock wave sootblower and sonic sootblower is relatively small and cannot meet the actual sootblowing requirements. Utility Model Content

[0004] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a boiler SCR reaction chamber shock wave soot blower, including a pulse tank, and further comprising;

[0005] a sleeve, connected to the gas outlet end of the pulse tank;

[0006] a first annular member rotatably mounted in the sleeve;

[0007] a pair of air outlet pipes, both disposed below the first annular member;

[0008] A three-way valve, one end of which is connected to the first annular member, and the other two ends of which are respectively connected to the pair of air outlet pipes;

[0009] A plurality of air jets are respectively provided on the outer surfaces of a pair of the air outlet pipes;

[0010] The driving mechanism is arranged on the outer surface of the sleeve and is used for driving the first annular member to rotate.

[0011] Preferably, the driving mechanism includes:

[0012] a motor, fixedly mounted on the outer surface of the sleeve;

[0013] a first sprocket fixedly mounted on an outer surface of the first annular member located outside the sleeve;

[0014] a second sprocket fixedly mounted on the output end of the motor;

[0015] a chain, meshingly connected to the first sprocket and the second sprocket respectively;

[0016] The second annular member is rotatably mounted on the outer surface of the first annular member and is used for connecting with the boiler.

[0017] Preferably, an X-shaped fixing frame is fixedly installed between the pair of air outlet pipes.

[0018] Preferably, a first annular groove is formed on the inner wall surface of the sleeve, and a first annular block is fixedly mounted on the outer surface of the first annular member and is slidably connected to the first annular groove.

[0019] Preferably, an annular placement groove is formed on the inner wall surface of the sleeve, a rubber sealing ring is provided in the annular placement groove, and the inner wall surface of the rubber sealing ring contacts the outer surface of the first annular member.

[0020] Preferably, a second annular groove is formed on the inner wall surface of the second annular member, and a second annular block slidably connected to the second annular groove is fixedly mounted on the outer surface of the first annular member.

[0021] The beneficial technical effects of the utility model are as follows: under the action of the sleeve, the first annular member, the air outlet pipe and the three-way valve, the gas in the pulse tank can be ejected from the air jet port, so as to blow soot against the inner wall of the boiler, thereby improving the thermal efficiency and operational reliability of the boiler, causing soot to fall off the heated surface, thereby reducing the exhaust gas temperature and improving the thermal efficiency of the boiler;

[0022] At the same time, under the action of the driving mechanism, the second annular member can be rotated. The rotation of the second annular member can drive the three-way valve and the air outlet pipe to rotate at the same time, so that the air jet can blow off the accumulated ash in the boiler 360 degrees, improve the ash removal efficiency, and bring convenience to people. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic diagram of the main structure of the present utility model.

[0024] Figure 2 A schematic diagram of the main cross-sectional structure of the first annular member of the present invention is shown.

[0025] Figure 3 Shows the utility model Figure 2 Schematic diagram of the enlarged structure of part A.

[0026] Figure 1: Pulse tank, 2: Sleeve, 3: First annular member, 4: Exhaust pipe, 5: Three-way valve, 6: Air jet, 7: Motor, 8: First sprocket, 9: Second sprocket, 10: Chain, 11: Second annular member, 12: X-shaped fixing frame, 13: First annular groove, 14: First annular block, 15: Annular placement groove, 16: Rubber sealing ring, 17: Second annular groove, 18: Second annular block. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] The utility model proposes a boiler SCR reaction chamber shock wave soot blower, comprising a pulse tank 1, and further comprising;

[0029] Sleeve 2 is connected to the gas outlet end of pulse tank 1;

[0030] The gas outlet end of the pulse tank 1 is fixedly connected with a first flange, and one end surface of the sleeve 2 is fixedly installed with a second flange connected with the sleeve 2. The first flange and the second flange are fixedly connected with each other, so that the gas in the pulse tank 1 can enter the sleeve 2;

[0031] The first annular member 3 is rotatably mounted in the sleeve 2;

[0032] A pair of air outlet pipes 4 are provided below the first annular member 3;

[0033] A three-way valve 5, one end of which is connected to the first annular member 3, and the other two ends of which are respectively connected to a pair of air outlet pipes 4;

[0034] There are several air jets 6, each of which is provided on the outer surface of a pair of air outlet pipes 4;

[0035] The three ends of the three-way valve 5 are respectively connected to one end of the first annular member 3 and a pair of gas outlet pipes 4, so that the gas in the pulse tank 1 can enter the three-way valve 5 through the sleeve 2 and the first annular member 3, and then enter the pair of gas outlet pipes 4 through the three-way valve 5, and be ejected from the air jet 6 to remove ash from the inner surface of the boiler;

[0036] The driving mechanism is provided on the outer surface of the sleeve 2 and is used for driving the first annular member 3 to rotate.

[0037] Specifically, the driving mechanism includes:

[0038] The motor 7 is fixedly mounted on the outer surface of the sleeve 2;

[0039] The first sprocket 8 is fixedly mounted on the outer surface of the first annular member 3 outside the sleeve 2;

[0040] The second sprocket 9 is fixedly mounted on the output end of the motor 7;

[0041] The chain 10 is meshed and connected with the first sprocket 8 and the second sprocket 9 respectively;

[0042] The output end of the motor 7 rotates to drive the second sprocket 9 to rotate. At this time, the rotation of the second sprocket 9 drives the first sprocket 8 to rotate. The rotation of the first sprocket 8 drives the first annular member 3, the three-way valve 5 and the air outlet pipe 4 to rotate, so that the air injection port 6 can remove ash from the inner surface of the boiler in a 360-degree angle.

[0043] The second annular member 11 is rotatably mounted on the outer surface of the first annular member 3 and is used to connect to the boiler;

[0044] The outer surface of the second annular member 11 is connected to the furnace wall of the boiler and can be relatively fixed.

[0045] Specifically, an X-shaped fixing frame 12 is fixedly installed between the pair of air outlet pipes 4;

[0046] The X-shaped fixing frame 12 can fix the pair of air outlet pipes 4 relatively to prevent the air outlet pipes 4 from shaking when the air jets 6 eject air, thereby preventing the air outlet pipes 4 from being stable.

[0047] Specifically, a first annular groove 13 is formed on the inner wall surface of the sleeve 2, and a first annular block 14 is fixedly mounted on the outer surface of the first annular member 3 and is slidably connected to the first annular groove 13;

[0048] Under the action of the first annular groove 13 and the first annular block 14 , the first annular member 3 can be kept stable when rotating in the sleeve 2 .

[0049] Specifically, an annular placement groove 15 is formed on the inner wall surface of the sleeve 2, and a rubber sealing ring 16 is arranged in the annular placement groove 15. The inner wall surface of the rubber sealing ring 16 contacts the outer surface of the first annular member 3;

[0050] Under the action of the rubber sealing ring 16 , the gap between the sleeve 2 and the first annular member 3 can be sealed to prevent the gas in the sleeve 2 from leaking.

[0051] Specifically, a second annular groove 17 is formed on the inner wall surface of the second annular member 11, and a second annular block 18 is fixedly mounted on the outer surface of the first annular member 3 and is slidably connected to the second annular groove 17;

[0052] Under the action of the second annular groove 17 and the second annular block 18 , the first annular member 3 can be kept stable when rotating in the second annular member 11 .

[0053] Working principle: In actual use, the second annular member 11 is set into the upper wall of the boiler, and a pair of air outlet pipes 4 are located in the boiler. When soot blowing is required in the boiler, the pulse tank 1 is started, so that the gas in the pulse tank 1 enters the sleeve 2 through the first flange and the second flange. At this time, the gas in the sleeve 2 enters the first annular member 3 and the three-way valve 5, and then enters the pair of air outlet pipes 4 respectively through the three-way valve 5, and is then ejected from the jet port 6 to remove the dust on the inner wall of the boiler. At this time, the motor 7 is started, and the rotation of the output end of the motor 7 can drive the second sprocket 9 to rotate. Under the action of the chain 10, the first sprocket 8 can drive the first annular member 3 to rotate. At this time, the rotation of the first annular member 3 can drive the three-way valve 5 and a pair of air outlet pipes 4 to rotate, so that the gas ejected from the jet port 6 can remove the ash on the inner wall of the boiler 360 degrees, bringing convenience to people.

[0054] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0055] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0057] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0058] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A boiler SCR reaction chamber shock wave soot blower, comprising a pulse tank (1), characterized in that: Also includes; A sleeve (2) is connected to the gas outlet end of the pulse tank (1); A first annular member (3) is rotatably mounted in the sleeve (2); A pair of air outlet pipes (4) are provided below the first annular member (3); A three-way valve (5), one end of which is in communication with the first annular member (3), and the other two ends of which are respectively in communication with a pair of the air outlet pipes (4); A plurality of air jets (6) are respectively provided on the outer surfaces of a pair of the air outlet pipes (4); A driving mechanism is provided on the outer surface of the sleeve (2) and is used to drive the first annular member (3) to rotate.

2. The boiler SCR reaction chamber shock wave soot blower according to claim 1, characterized in that: The driving mechanism comprises: A motor (7) is fixedly mounted on the outer surface of the sleeve (2); A first sprocket (8) fixedly mounted on the outer surface of the first annular member (3) located outside the sleeve (2); A second sprocket (9) is fixedly mounted on the output end of the motor (7); A chain (10) is meshedly connected to the first sprocket (8) and the second sprocket (9); The second annular member (11) is rotatably mounted on the outer surface of the first annular member (3) and is used for connecting to the boiler.

3. The shock wave soot blower for a boiler SCR reaction chamber according to claim 1, characterized in that: An X-shaped fixing frame (12) is fixedly installed between the pair of air outlet pipes (4).

4. The shock wave soot blower for a boiler SCR reaction chamber according to claim 1, characterized in that: A first annular groove (13) is formed on the inner wall surface of the sleeve (2), and a first annular block (14) is fixedly mounted on the outer surface of the first annular member (3) and is slidably connected to the first annular groove (13).

5. The boiler SCR reaction chamber shock wave soot blower according to claim 1, characterized in that: An annular placement groove (15) is formed on the inner wall surface of the sleeve (2), a rubber sealing ring (16) is provided in the annular placement groove (15), and the inner wall surface of the rubber sealing ring (16) contacts the outer surface of the first annular member (3).

6. The boiler SCR reaction chamber shock wave soot blower according to claim 2, characterized in that: A second annular groove (17) is formed on the inner wall surface of the second annular member (11), and a second annular block (18) is fixedly mounted on the outer surface of the first annular member (3) and is slidably connected to the second annular groove (17).

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