Gas pulse soot blower

Abstract

The utility model discloses a fuel gas pulse soot blower which comprises a pulse generator, a spray pipe, a drain pipe, an upper valve and a lower valve. The pulse generator is fixedly mounted on the side of the boiler; one end of the spray pipe is mounted at the bottom of the pulse generator, and the other end of the spray pipe is inserted into the boiler; the upper end of the drain pipe is connected to the bent part of the spray pipe and provided with an upper valve; the lower valve is mounted at the tail end of the drain pipe. Compared with the prior art, original equipment is transformed, condensate water is reduced through a heat preservation structure, the condensate water is guided to be discharged in order, and the situation that the condensate water drops onto a boiler heat exchange tube to cause boiler tube explosion and boiler shutdown accidents is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler anti-corrosion, in particular to a gas pulse sootblowing device. Background Technique

[0002] The gas pulse sootblowing device is a technology widely used at home and abroad in coal-fired boilers, biomass boilers and waste heat boilers to remove ash deposits on the heating surfaces. Fuel natural gas or acetylene and air are mixed in a certain proportion to form a combustible mixed gas, which enters a mixer with an igniter. The mixed gas is ignited by the igniter to generate a micro-explosion as an instantaneous high-pressure gas source. Through pipes and nozzles with special structures, strong compression pulses are formed. Under the action of various energies such as high-speed air flow, acoustic fatigue and thermal cleaning, the ash deposits on the furnace tubes fall off to achieve the purpose of ash cleaning. However, the mixer of the pulse sootblower often corrodes and breaks, and condensate is easily generated inside the pulse sootblower. The condensate drips onto the boiler heat exchange tubes through the bottom of the nozzle, causing boiler tube explosion and shutdown accidents. Content of the Utility Model

[0003] In view of the problems existing in the prior art, the utility model discloses a gas pulse sootblowing device, which includes a pulse generator, a spray pipe, a drain pipe, an upper valve and a lower valve; the pulse generator is fixedly installed on the side of the boiler; the spray pipe is a bent pipe, one end is installed at the bottom of the pulse generator, and the other end is inserted into the boiler; the upper end of the drain pipe is connected to the bent part of the spray pipe and is equipped with an upper valve; the lower valve is installed at the end of the drain pipe.

[0004] As a preferred technical solution of the utility model, the included angle between the part of the spray pipe extending into the boiler and the horizontal plane is 3-5°.

[0005] As a preferred technical solution of the utility model, both the upper valve and the lower valve are electric, and the top end of the drain pipe is connected to the lowest part of the spray pipe.

[0006] As a preferred technical solution of the utility model, the end of the drain pipe is connected to a trench.

[0007] As a preferred technical solution of the utility model, the outer walls of the pulse generator and the spray pipe are wrapped with heat-insulating cotton.

[0008] The beneficial effects of the utility model: By transforming the original equipment, the utility model reduces the generation of condensate through the heat-insulating structure, guides the condensate to be discharged orderly, and avoids the boiler tube explosion and shutdown accidents caused by the condensate dripping onto the boiler heat exchange tubes. Description of the Drawings

[0009] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, the components or parts are not necessarily drawn to scale.

[0010] Figure 1 This is a cross-sectional view of the present invention;

[0011] In the figure: boiler 1, pulse generator 2, nozzle 3, drain pipe 4, upper valve 5, lower valve 6. Specific embodiments

[0012] Example 1

[0013] As Figure 1 shown, the present invention discloses a gas pulse sootblowing device, including a pulse generator 2, a nozzle 3, a drain pipe 4, an upper valve 5, and a lower valve 6; the pulse generator 2 is fixedly installed on the side of the boiler 1; the nozzle 3 is a bent pipe, one end is installed at the bottom of the pulse generator 2, and the other end is inserted into the boiler 1; the upper end of the drain pipe 4 is connected to the bent part of the nozzle 3, and an upper valve 5 is installed; the lower valve 6 is installed at the end of the drain pipe 4. By adding a drain pipe 4 at the lower end of the bent pipe 3 and using electric-controlled upper and lower valves, and covering the outer walls of the pulse generator 2 and the nozzle 3 with heat-insulating cotton, the generation of condensed water can be reduced, and the condensed water can be guided to drain from the drain pipe 4, avoiding the accident of boiler tube explosion and shutdown caused by condensed water dripping onto the boiler heat exchange tubes.

[0014] The working principle of the present invention: When the present invention is in use, a nozzle 3 is installed under the pulse generator 2. When installing, the angle between the part of the nozzle 3 extending into the boiler 1 and the horizontal is 3-5°, and heat-insulating cotton is wrapped around the outer walls of the pulse generator 2 and the nozzle 3 to reduce the generation of condensed water; if condensed water is generated in the nozzle, the pulse generator 2 can be closed, and the upper valve 5 and the lower valve 6 can be opened to allow the condensed water to drain from the drain pipe 4 to the trench, avoiding the accident of boiler tube explosion and shutdown caused by the condensed water flowing along the nozzle 3 to the internal heat exchange tubes of the boiler 1.

[0015] The components not described in detail in this article are prior art.

[0016] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention, and the modifications or deformations without creative labor are still within the protection scope of the present invention.

Claims

1. A gas pulse sootblowing device, comprising a boiler (1), characterized in that: It includes a pulse generator (2), a nozzle (3), a drain pipe (4), an upper valve (5), and a lower valve (6); the pulse generator (2) is fixedly installed on the side of the boiler (1); the nozzle (3) is a bent pipe, one end is installed at the bottom of the pulse generator (2), and the other end is inserted into the interior of the boiler (1); the upper end of the drain pipe (4) is connected to the bent part of the nozzle (3), and the upper valve (5) is equipped; the lower valve (6) is installed at the end of the drain pipe (4).

2. The gas pulse sootblowing device according to claim 1, wherein: The included angle between the part of the nozzle (3) extending into the boiler (1) and the horizontal plane is 3-5°.

3. The gas pulse soot blower device according to claim 2, characterized in that: Both the upper valve (5) and the lower valve (6) are electric, and the top end of the drain pipe (4) is connected to the lowest part of the nozzle (3).

4. A gas pulse sootblowing device according to claim 1, characterized in that: The end of the drain pipe (4) is connected to the trench.

5. A gas pulse sootblowing device according to claim 1, characterized in that: The outer walls of the pulse generator (2) and the nozzle (3) are wrapped with heat insulation cotton.

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