Smoke and fire pipe dredging device

Abstract

The utility model relates to the technical field of boiler smoke and fire pipe ash removal, and discloses a smoke and fire pipe dredging device which comprises an air compressor and an air storage tank which are sequentially connected, an air outlet of the air storage tank is communicated with one ends of a first pipeline and a second pipeline, and the other ends of the first pipeline and the second pipeline are communicated and connected with a rotary air nozzle through a high-pressure hose. A first electromagnetic valve is arranged on the first pipeline, a second electromagnetic valve is arranged on the second pipeline, and pulse blowing of the rotary air nozzle is achieved by opening the first pipeline; the rotary air nozzle continuously blows air by opening the second pipeline; according to the utility model, the ash of the smoke and fire tube is removed in an air injection manner, so that the problems of hinge head breakage and boiler shell damage caused by collision between the hard alloy hinge head and the outer wall of the boiler shell and mechanical damage easily caused by high-speed rotation of the hard alloy hinge head are solved; during air injection, the rotary air nozzle can drive the bristles to act on the inner wall of the smoke and fire pipe, the combined action of air blowing and the bristles is achieved, and the ash removal effect can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of boiler flue gas tube cleaning technology, and in particular to a flue gas tube unblocking device. Background Technology

[0002] After boiler operation ends, a large amount of ash accumulates on the inner wall of the fire tubes. If not cleaned in time, this will affect the boiler's thermal efficiency and reduce its economic efficiency. Therefore, it is necessary to unclog the boiler's fire tubes after operation to save fuel input, improve boiler thermal efficiency, and reduce boiler fuel costs.

[0003] Currently, the traditional method of unblocking is mechanical unblocking, which uses a pneumatic motor to drive a front-end hard alloy steel hinge head to collide and rub against the inner wall of the pipe to achieve the effect of unblocking and cleaning. Based on past experience in unblocking the flue gas tubes of chain grate boilers, it has been found that traditional mechanical unblocking operations are quite difficult. It requires precise judgment of the insertion depth of the hinge head into the flue gas tube. If inserted too deeply, the hinge head will collide with the outer wall of the boiler shell, resulting in the hinge head breaking and damage to the boiler shell. If inserted too shallowly, the unblocking effect will be unsatisfactory, and the high-speed rotating hinge head is prone to mechanical damage, which is not conducive to safe production. In addition, the internal environment of the boiler is complex, and the ash removal circuit is prone to wear and leakage accidents, which increases the danger of unblocking work. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a flue pipe cleaning device that can quickly clean the flue pipes of boilers while ensuring safety and cleaning effect.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] A device for unblocking fireworks pipes includes an air compressor and an air tank connected in sequence. The outlet of the air tank is connected to one end of a first pipeline and a second pipeline. The other ends of the first pipeline and the second pipeline are connected and connected to a rotary nozzle via a high-pressure hose. A first solenoid valve is provided on the first pipeline, and a second solenoid valve is provided on the second pipeline. Pulsed air blowing by the rotary nozzle is achieved by opening the first pipeline, and continuous air blowing by the rotary nozzle is achieved by opening the second pipeline.

[0007] As a further implementation, the first electrical measuring valve is connected to a power source via a line and a transformer.

[0008] As a further implementation, the second electrical measuring valve is connected to a power source via a line and a transformer.

[0009] As a further implementation, a ball valve is provided on the pipeline between the air compressor and the air tank.

[0010] As a further implementation, the gas storage tank is equipped with a pressure gauge.

[0011] As a further implementation, the first solenoid valve is an electromagnetic pulse valve.

[0012] As a further implementation, both the first and second solenoid valves are normally closed solenoid valves.

[0013] As a further implementation, the first and second solenoid valves can be switched on and off via a remote control.

[0014] As a further implementation, the rotating jet nozzle is rotatably engaged with the high-pressure hose, and bristles are provided around the rotating jet nozzle.

[0015] As a further implementation, the rotating jet nozzle is provided with jet holes, which are arranged on the front end face and the periphery of the rotating jet nozzle.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention employs an air jet method to clean the ash from the fire tube, solving the problems of carbide hinge head breakage and pot shell damage caused by collisions with the outer wall of the pot, and the mechanical damage easily caused by the high-speed rotation of the carbide hinge head. Pulsed air is achieved by opening the first pipeline; continuous air is achieved by opening the second pipeline, enabling segmented ash cleaning of the fire tube. The rotating nozzle continuously penetrates deep into the fire tube to clean the ash. During air jetting, the rotating nozzle drives the bristles to act on the inner wall of the fire tube, achieving a combined effect of air blowing and brushing to ensure effective ash cleaning. A transformer is included to convert 220V AC power to 24V DC power, ensuring electrical safety. The use of safe voltage greatly reduces the dangers of the unblocking work. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is a schematic diagram of the overall structure of a fire pipe unblocking device according to an embodiment of this utility model.

[0020] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0021] Among them: 1. Air tank, 2. First solenoid valve, 3. Second solenoid valve, 4. Air compressor, 5. Ball valve, 6. Power supply, 7. Transformer, 8. High-pressure hose, 9. Rotary nozzle, 11. Pressure gauge, 91. Brush. Detailed Implementation

[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Example 1

[0024] In a typical embodiment of this utility model, refer to Figure 1 As shown, a fire pipe clearing device includes an air compressor 4 and a gas storage tank 1 connected in sequence. The inlet end of the gas storage tank 1 is connected to the output end of the air compressor 4 through a pipeline, so that the air compressor 4 can send gas into the gas storage tank to form high-pressure gas.

[0025] The air tank 1 is equipped with a pressure gauge 11 to display the internal gas pressure, allowing for real-time monitoring of the pressure. A ball valve 5 is installed on the pipeline between the air compressor 4 and the air tank. Opening the ball valve 5 allows gas to enter the air tank 1 from the air compressor 4, ensuring that the air tank stores compressed air with sufficient pressure and capacity to guarantee better cleaning results.

[0026] In other examples, the gas storage tank can be powered by an air pump with a pressure of 0.7 MPa. Its gas source interface is located around the boiler and is equipped with a quick connector for easy installation and disassembly.

[0027] like Figure 1 As shown, the gas outlet of the gas storage tank is connected to one end of two parallel lines, namely, the first pipeline and the second pipeline. The other ends of the first and second pipelines are connected and connected to the rotary nozzle 9 via a high-pressure hose 8. A first solenoid valve 2 is installed on the first pipeline, and a second solenoid valve 3 is installed on the second pipeline. The first solenoid valve 2 controls the opening and closing of the first pipeline, and the second solenoid valve 3 controls the opening and closing of the second pipeline.

[0028] The first and second electrically conductive valves are connected to power supply 6 via lines and transformer 7. This embodiment considers the complex internal environment of the boiler and the susceptibility of the ash-cleaning lines to wear and leakage, increasing the risk of unblocking operations. A transformer is used; transformer 7 is a 24V switching power supply transformer. This transformer converts the 220V AC power to 24V DC power, ensuring electrical safety. The use of a safe voltage significantly reduces the risks of unblocking operations. It is understood that both the first and second solenoid valves are designed to be controlled by a 24V safe voltage.

[0029] In a preferred embodiment, the first solenoid valve 2 and the second solenoid valve 3 are switched on and off via a remote control. The remote control controls the first solenoid valve 2 to open the first pipeline, enabling pulsed airflow from the rotary nozzle; the remote control controls the second solenoid valve to open the second pipeline, enabling continuous airflow from the rotary nozzle. It is understood that the pulsed airflow can refer to existing pulsed airflow methods.

[0030] Both the first solenoid valve 2 and the second solenoid valve 3 are normally closed solenoid valves. The corresponding solenoid valve is opened via a remote control, allowing air to exit from its corresponding pipeline. Specifically, the first solenoid valve 2 is a solenoid pulse valve. Controlling the first solenoid valve 2 via the remote control enables pulsed airflow from the first pipeline, ensuring the blowing pressure at the rotating nozzle and guaranteeing the degree and effectiveness of ash removal from the pyrotechnic tube. Opening the second solenoid valve allows for continuous blowing for at least five seconds.

[0031] The rotating nozzle 9 is rotatably engaged with the high-pressure hose 8. The rotating nozzle 9 has bristles around its periphery and air jet holes arranged on its front and periphery. Gas enters the rotating nozzle 9 and is divided into multiple fine streams by the nozzle, which are then ejected. The recoil generated by the ejected gas drives the rotating nozzle to rotate rapidly. This rotation causes the bristles to act against the inner wall of the pyrotechnic tube, improving the ash removal effect. It is understood that the bristles 91 are fixed around the outer wall of the rotating nozzle 9 and do not obstruct the air jet holes; the bristles are made of a flexible material. It is understood that the rotating nozzle 9 has a pneumatic rotating nozzle structure.

[0032] Specific working principle:

[0033] Workers use a high-pressure hose to deliver the rotating nozzle 9 to one end of the pyrotechnic tube. First, they open the first solenoid valve 2 to blow air in a pulsed manner to clean the ash, removing dirt and hard-to-clean soot adhering to the inner wall of the tube. Then, they open the second solenoid valve 3 and blow air continuously through the second pipeline for a few seconds before closing the second solenoid valve 3. Continuous blowing can further clean the dirt and soot that are easier to blow away after the pulsed blowing, and blow the soot to the other end of the pyrotechnic tube.

[0034] Subsequently, the first solenoid valve 2 and the second solenoid valve 3 are continuously opened, and the rotating air nozzle 9 is continuously moved deeper into the pyrotechnic tube at a set distance in a segmented manner. That is, the rotating air nozzle 9 is delivered to the inner wall of the pyrotechnic tube through the high-pressure hose 8 to achieve segmented ash removal. The first solenoid valve 2 and the second solenoid valve 3 are opened alternately to achieve a combination of different blowing modes for ash removal. During the air blowing process, the bristles 91 brush the inner wall of the pyrotechnic tube, which, combined with the air blowing for ash removal, further improves the ash removal effect.

[0035] In other examples, the solenoid valve may not be remote-controlled. Instead, a switch can be installed on the solenoid valve's connection line to enable or disable the solenoid valve and thus activate it.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for unblocking fireworks pipes, characterized in that, The device includes an air compressor and an air tank connected in sequence. The air tank outlet is connected to one end of a first pipeline and a second pipeline. The other ends of the first and second pipelines are connected to a rotary nozzle via a high-pressure hose. The rotary nozzle has bristles around its periphery. A first solenoid valve is installed on the first pipeline, and a second solenoid valve is installed on the second pipeline. The first solenoid valve is connected to a power source via a line and a transformer, and the second solenoid valve is also connected to a power source via a line and a transformer. The first solenoid valve is an electromagnetic pulse valve, and both the first and second solenoid valves are normally closed solenoid valves. The rotating nozzle pulses air by opening the first pipeline; the rotating nozzle blows air continuously by opening the second pipeline.

2. The fire pipe unblocking device according to claim 1, characterized in that, A ball valve is installed on the pipeline between the air compressor and the air tank.

3. The fire pipe unblocking device according to claim 1, characterized in that, The gas storage tank is equipped with a pressure gauge.

4. The fire pipe unblocking device according to claim 1, characterized in that, The first and second solenoid valves are switched on and off via a remote control.

5. A fire pipe unblocking device according to claim 1, characterized in that, The rotating jet nozzle is rotatably engaged with the high-pressure hose.

6. A fire pipe unblocking device according to claim 5, characterized in that, The rotating jet nozzle is provided with jet holes, which are located on the front end face and the periphery of the rotating jet nozzle.

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