A sootblowing explosion tank with a rotatable partition

Abstract

The present invention discloses a soot blowing explosion tank with a rotatable partition plate, which comprises a tank body, an air inlet, an air outlet, and an ignition device; characterized in that: it further comprises a shaft, a sleeve, a first partition plate, a second partition plate, an arc plate, a first boss, and a second boss; in the natural state, due to the action of gravity, the arc plate welded to the end of the first partition plate fits against the first boss, and the second partition plate fits against the second boss, closing the air outlet to form a sealed chamber, which is beneficial to improving the filling degree and pressure of the mixed gas in the chamber, and can prevent the furnace flue gas from entering the explosion tank to cause corrosion; when an ignition explosion occurs, the partition plate and the arc plate are impacted and can rotate clockwise to open the air outlet; after the first partition plate is impacted and rotates 90 degrees clockwise, it will collide with the second boss, and the sound wave and vibration generated by the collision are beneficial to loosening the ash deposited on the inner wall surface of the explosion tank; during the explosion, the second partition plate does not block the air inlet, and the air inlet is always in communication with the chamber of the tank body.

Description

Technical Field

[0001] The present invention relates to the field of boiler pulse soot blowing, and particularly to a soot blowing explosion tank with a rotatable partition board. Background Art

[0002] The pulse soot blower is one of the commonly used soot blowing devices for boilers. It mainly utilizes the mixture of combustible gas and air or oxygen, and releases a huge intensity shock wave when ignited. This shock wave can effectively clean the ash deposits in the boiler. The explosion tank, also known as the pulse tank, is a container used to hold the mixed gas and generate an explosion. The structure of the explosion tank in the existing domestic technology is an open structure, and the air outlet is connected to the chamber of the explosion tank. During the process of filling the tank with the mixture of combustible gas and combustion-supporting gas, the mixture will escape from the air outlet of the tank while filling the tank, resulting in a low filling degree of the mixed gas in the tank, a low pressure in the tank, and insufficient power during explosion. Moreover, with the extension of the service time, the ash deposits on the inner wall surface of the explosion tank will gradually increase. In addition, due to the open structure of the explosion tank, when the pulse soot blower is not operating, sulfur trioxide in the flue gas in the boiler furnace will enter the tank through the air outlet of the explosion tank. Since the temperature inside the tank is relatively low, sulfur trioxide will condense upon encountering cold, causing low-temperature dew point corrosion. Summary of the Invention

[0003] To solve the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a soot blowing explosion tank with a rotatable partition board, which is used to improve the filling degree and pressure of the mixed gas in the chamber of the explosion tank, enhance the power of the explosion, improve the efficiency of the pulse soot blower, and reduce the ash deposits on the inner wall surface of the explosion tank and the corrosion inside the tank.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] A soot blowing explosion tank with a rotatable partition board, comprising a tank body 1, an air inlet 2, an air outlet 3, and an ignition device 11; characterized in that: it further includes a shaft 4, a sleeve 5, a first partition board 6, a second partition board 7, an arc plate 8, a first boss 9, and a second boss 10; in the natural state, due to the action of gravity, the arc plate 8 welded to the end of the first partition board 6 fits against the first boss 9, and the second partition board 7 fits against the second boss 10, separating the air outlet 3 from the chamber of the explosion tank to form a sealed chamber, which is beneficial to improving the filling degree and pressure of the mixed gas in the chamber; when an ignition explosion occurs, the first partition board 6, the arc plate 8, and the second partition board 7 are all impacted and can rotate clockwise, connecting the air outlet 3 with the chamber of the explosion tank; after the first partition board 6 is impacted and rotates 90 degrees clockwise, it will collide with the second boss 10, and the sound wave and vibration generated by the collision are beneficial to loosening the ash deposits on the inner wall surface of the explosion tank. The length of the second partition board 7 is less than the inner radius of the tank body 1 and will not block the air inlet 2, so that the air inlet 2 can always be connected with the chamber of the explosion tank.

[0006] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the tank body 1 is a cylindrical structure arranged horizontally with a chamber; the air outlet 3 is located on the side wall of the tank body 1, and the direction is vertically downward; the air inlet 2 is located on the side wall of the tank body 1 and is perpendicular to the direction of the air outlet 3.

[0007] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the shaft 4 is fixed to the tank body 1 and is located at the position of the axis of the cylinder; the sleeve 5 can rotate freely around the shaft 4.

[0008] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the first partition plate 6 is fixed on the sleeve 5, the arc plate 8 is fixed to the outer end of the first partition plate 6 to form a "7" shape, the radian of the arc plate 8 is 20 degrees, and the gap between the arc plate 8 and the inner wall surface of the tank body 1 is about 1 cm.

[0009] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the first boss 9 is fixed to the inner wall surface of the lower right side of the tank body 1, and the first boss 9 is a lying triangular prism structure; in the natural state, due to the action of gravity, the right arc end of the arc plate 8 is attached to the left side of the first boss 9, and at this time the first partition plate 6 forms an angle of 10 degrees with the vertical direction.

[0010] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the second boss 10 is fixed to the inner wall surface of the left side of the tank body 1, and the second boss 10 is a cuboid structure with a edge cut along the axis direction of the tank body 1; when ignition and combustion occur, the first partition plate 6 is impacted and rotates clockwise, and after rotating 90 degrees, the first partition plate 6 will collide with the second boss 10.

[0011] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the second partition plate 7 is fixed on the sleeve 5 and is integrated with the first partition plate 6, and the included angle between the second partition plate 7 and the first partition plate 6 is 110 degrees; in the natural state, the second partition plate 7 is attached to the cut surface of the second boss 10; the ratio of the length of the second partition plate 7 to the length of the first partition plate 6 is 2 / 3.

[0012] The above-mentioned soot blowing explosion tank with a rotatable partition plate, wherein the ignition device 11 is fixed at the center position of the upper surface of the first boss 9 in the chamber of the tank body 1.

[0013] In the above-mentioned sootblowing explosion tank with a rotatable partition plate, in the natural state, due to the action of gravity, the arc plate 8 welded to the end of the first partition plate 6 fits against the first boss 9, and the second partition plate 7 fits against the second boss 10, separating the air outlet 3 from the explosion tank chamber to form a sealed chamber. When gas is filled, although the pressure in the explosion tank chamber increases and the first partition plate 6 receives a clockwise inflation thrust, at this time, the gravity of the first partition plate 6 is greater than the inflation thrust, so the first partition plate 6 will not rotate and the explosion tank chamber remains sealed. When ignition and deflagration occur, the pressure in the explosion tank chamber increases sharply, and the first partition plate 6 and the arc plate 8 are impacted. The clockwise thrust received by the first partition plate 6 is greater than the gravity it receives, and it can rotate 90 degrees clockwise, connecting the air outlet 3 to the chamber of the tank body 1, and the shock wave can smoothly spray out from the air outlet 3. After the first partition plate 6 is impacted and rotates 90 degrees clockwise, it collides with the second boss 10.

[0014] The beneficial effects of the present invention are as follows: The first partition plate 6, the second partition plate 7, and the arc plate 8 can close the air outlet 3. During the inflation process, the chamber of the tank body 1 remains sealed, and the mixed gas will not escape from the air outlet 3 into the boiler furnace, so that inflation can be continuously carried out to increase the filling degree of the mixed gas in the tank body 1 and the pressure of the mixed gas in the tank body 1. When ignited, the explosion power is greater, a stronger shock wave can be generated, and the sootblowing effect can be improved. Moreover, when ignition and deflagration occur, the first partition plate 6, the second partition plate 7, and the arc plate 8 rotate 90 degrees clockwise, opening the air outlet 3, and the shock wave can smoothly spray out from the air outlet 3. When exploding, the second partition plate 7 does not block the air inlet 2, and the air inlet 2 is always connected to the explosion tank chamber. When the first partition plate 6 collides with the second boss 10 under impact, the generated sound waves and vibrations are also beneficial to loosening the ash deposited on the inner wall surface of the explosion tank. In addition, after the explosion is completed, the first partition plate 6, the second partition plate 7, and the arc plate 8 return to the original position under the action of gravity, closing the air outlet 3, which can prevent the flue gas containing sulfur trioxide in the boiler furnace from entering the inside of the tank body 1 through the air outlet 3 and causing low-temperature dew point corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a sectional view of the present invention, with the tank body in the natural state;

[0018] Figure 3 is a sectional view of the present invention when the mixed gas deflagrates;

[0019] Figure 4 is the front view of the rotatable partition plate of the present invention.

[0020] In the figure, 1. tank body, 2. air inlet, 3. air outlet, 4. shaft, 5. sleeve, 6. first partition plate, 7. second partition plate, 8. arc plate, 9. first boss, 10. second boss, 11. ignition device. Detailed implementation mode

[0021] The present invention will be further described in detail below in conjunction with the drawings and specific implementation schemes.

[0022] As Figure 1 shown, a soot blowing explosion tank with a rotatable partition plate of the present invention includes a tank body 1, an air inlet 2, an air outlet 3, and an ignition device 11; it also includes a shaft 4, a sleeve 5, a first partition plate 6, a second partition plate 7, an arc plate 8, a first boss 9, and a second boss 10. The tank body 1 is a cylindrical structure with a chamber and is horizontally arranged; an air inlet 2 and an air outlet 3 are arranged on the side wall of the tank body 1. As a preferred implementation mode of the present invention, the direction of the air outlet 3 is vertically downward, and the direction of the air inlet 2 is perpendicular to the direction of the air outlet 3. The shaft 4 is fixed to the tank body 1 and is located at the axis position of the cylinder, and the sleeve 5 can rotate freely around the shaft 4. The first partition plate 6 is fixed on the sleeve 5; the arc plate 8 is fixed to the outer end of the first partition plate 6 to form a "7" shape; the second partition plate 7 is fixed on the sleeve 5 and is integrated with the first partition plate 6; the radian of the arc plate 8 is 20 degrees, and the gap between the arc plate 8 and the inner wall surface of the tank body 1 is about 1 cm; the first boss 9 is fixed on the inner wall surface of the lower right side of the tank body 1, and the first boss 9 is a lying triangular prism structure; the second boss 10 is fixed on the inner wall surface of the left side of the tank body 1, and the second boss 10 is a cuboid structure with a edge cut along the axis direction of the tank body 1. The ignition device 11 is fixed at the center position of the upper surface of the first boss 9 in the chamber of the tank body 1.

[0023] The ratio of the length of the second partition plate 7 to the length of the first partition plate 6 is about 2 / 3 to ensure that the impact on the first partition plate 6 is greater than the impact on the second partition plate 7 during the deflagration of the mixed gas, and to ensure that the first partition plate 6 can rotate clockwise under the action of the shock wave to open the air outlet 3. And the length of the second partition plate 7 is less than the inner radius of the tank body 1, which can ensure that the air inlet 2 is not blocked, so that the air inlet 2 is always in communication with the explosion tank chamber.

[0024] When the mixed gas is not ignited, the tank body 1 is in a natural state. As Figure 2 shown, due to the action of gravity, the right arc end of the arc plate 8 fits against the left side of the first boss 9. At this time, the first partition plate 6 forms an angle of 10 degrees with the vertical direction. At the same time, the second partition plate 7 fits against the second boss 10, separating the air outlet 3 from the explosion tank chamber to form a sealed chamber.

[0025] When gas is filled, although the pressure in the explosion tank chamber increases and the first partition plate 6 receives a clockwise gas filling thrust, at this time, the gravity of the first partition plate 6 is greater than the gas filling thrust, and the first partition plate 6 will not rotate, and the explosion tank chamber remains sealed. During the gas filling process, the mixed gas will not escape from the air outlet 3 into the boiler furnace, and gas can be continuously filled to increase the filling degree and pressure of the mixed gas in the tank body 1. When it is ignited, the explosion will have greater power, generate a stronger shock wave, and improve the soot blowing effect.

[0026] When the mixed gas deflagrates, as Figure 3 shown, when the ignition deflagrates, the pressure in the explosion tank chamber increases sharply. The first partition plate 6 and the arc plate 8 are impacted. The clockwise thrust received by the first partition plate 6 is greater than the gravity it receives, and it can rotate clockwise, enabling the air outlet 3 to communicate with the chamber of the tank body 1, and the shock wave can smoothly spray out from the air outlet 3; after the first partition plate 6 is impacted and rotates 90 degrees clockwise, it collides with the second boss 10, and the sound wave and vibration generated by the collision are conducive to loosening the ash deposited on the inner wall surface of the explosion tank.

[0027] After the explosion is completed, the first partition plate 6, the second partition plate 7, and the arc plate 8 return to their original positions under the action of gravity, re-sealing the air outlet 3, which can prevent the flue gas containing sulfur trioxide in the boiler furnace from entering the inside of the tank body 1 through the air outlet 3 and causing low-temperature dew point corrosion.

Claims

1. A soot blowing explosion tank with a rotatable partition, comprising a tank body (1), an air inlet (2), an air outlet (3), and an ignition device (11); characterized in that: It further includes a shaft (4), a sleeve (5), a first partition plate (6), a second partition plate (7), an arc plate (8), a first boss (9), and a second boss (10); the tank body (1) is a cylindrical structure arranged horizontally with a chamber; the air outlet (3) is located on the side wall of the tank body (1) and the direction is vertically downward; the air inlet (2) is located on the side wall of the tank body (1) and is perpendicular to the direction of the air outlet (3); the shaft (4) is fixed to the tank body (1) and is located at the position of the axis of the cylinder; the sleeve (5) can rotate freely around the shaft (4); in the natural state, due to the action of gravity, the arc plate (8) welded to the end of the first partition plate (6) fits against the first boss (9), and the second partition plate (7) fits against the second boss (10), separating the air outlet (3) from the chamber of the explosion tank to form a sealed chamber; when ignition and combustion occur, the first partition plate (6) is impacted and can rotate clockwise, causing the air outlet (3) to communicate with the chamber of the tank body (1); after the first partition plate (6) is impacted and rotates 90 degrees clockwise, it collides with the second boss (10), and the sound waves and vibrations generated by the collision are beneficial to loosening the dust accumulated on the inner wall surface of the explosion tank.

2. The soot blowing explosion tank with a rotatable partition board according to claim 1, characterized in that: The first partition plate (6) is fixed to the sleeve (5), the arc plate (8) is fixed to the outer end of the first partition plate (6) to form a "7" shape, the radian of the arc plate (8) is 20 degrees, and the gap between the arc plate (8) and the inner wall surface of the tank body (1) is 1 cm; the second partition plate (7) is fixed to the sleeve (5) and is integrated with the first partition plate (6), and the included angle between the second partition plate (7) and the first partition plate (6) is 110 degrees; in the natural state, the second partition plate (7) fits against the cut surface of the second boss (10); the ratio of the length of the second partition plate (7) to the length of the first partition plate (6) is 2 / 3, which can ensure that the second partition plate (7) does not block the air inlet (2) during explosion.

3. A soot blowing explosion tank with a rotatable partition according to claim 1, characterized in that: The first boss (9) is fixed to the inner wall surface of the lower right side of the tank body (1), and the first boss (9) is a horizontally placed triangular prism structure; in the natural state, due to the action of gravity, the right arc end of the arc plate (8) fits against the left side of the first boss (9), and at this time the first partition plate (6) forms an angle of 10 degrees with the vertical direction; the second boss (10) is fixed to the inner side wall surface of the left side of the tank body (1), and the second boss (10) is a cuboid structure with a edge cut along the axis direction of the tank body (1); when ignition and combustion occur, the first partition plate (6) is impacted and rotates clockwise, and after rotating 90 degrees, the first partition plate (6) will collide with the second boss (10).

4. A soot blowing explosion tank with a rotatable partition board according to claim 1, characterized in that: The ignition device (11) is fixed at the center position on the upper surface of the first boss (9) in the chamber of the tank body (1).

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