A kind of waterproof flat flue soot injection purging device

Abstract

The utility model discloses a kind of prevent horizontal flue dust injection purging device, including shell, air inlet sleeve pipe is installed on the shell, one end of the air inlet sleeve pipe is connected external compressed air source, the other end of the air inlet sleeve pipe is communicated with gas guide mouth, buffering steering chamber is provided in the shell and communicated with gas guide mouth, airflow injection port is communicated with buffering steering chamber inside in the shell, upper parallel gas guide disc and lower parallel gas guide disc are respectively provided with in the position of airflow injection port above and airflow injection port below on the shell, high-temperature wear-resistant plate and wear-resistant refractory material layer, effectively enhance the durability of purging device under high temperature, high wear environment, use compressed air to impact dust, with high efficiency cleaning, strong durability, can effectively improve horizontal flue dust cleaning efficiency and effect, and the purging efficiency is significantly improved compared with traditional equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler flue cleaning equipment, specifically a jet cleaning device for preventing ash accumulation in horizontal flues. Background Technology

[0002] During boiler operation, horizontal flues are prone to ash accumulation due to their special structure and flue gas flow characteristics. Ash accumulation can increase flue resistance, hinder boiler ventilation, reduce heat transfer efficiency, and cause energy waste. At the same time, ash accumulation may also cause local overheating, corrosion, and other problems, affecting the boiler's safety performance and shortening the equipment's service life.

[0003] Existing boiler ash removal equipment has certain limitations in dealing with ash accumulation in horizontal flues. Some sootblowers have uneven airflow coverage, making it difficult to effectively remove ash accumulation in horizontal flues. At the same time, some equipment is prone to wear and tear in high-temperature and high-dust environments, resulting in high maintenance costs. Some sootblowers also cannot adjust the blowing parameters in real time according to the ash accumulation, leading to poor blowing effect.

[0004] To address the aforementioned technical problems, this application proposes a jet purging device for preventing ash accumulation in horizontal flues. Utility Model Content

[0005] The purpose of this utility model is to provide a jet purging device for preventing ash accumulation in horizontal flues, so as to solve the problems of low purging efficiency, poor adaptability and easy wear of existing boiler horizontal flue purging equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A jet purging device for preventing ash accumulation in horizontal flues includes a housing, an air inlet sleeve installed on the housing, one end of the air inlet sleeve being connected to an external compressed air source, and the other end of the air inlet sleeve being connected to an air guide port. A buffer deflector chamber connected to the air guide port is provided inside the housing. An airflow jet port connected to the interior of the buffer deflector chamber is provided on the housing. An upper parallel air guide plate and a lower parallel air guide plate are respectively provided on the housing above and below the airflow jet port.

[0007] As a further embodiment of this utility model, the shell is adapted to the internal shape of the boiler's horizontal flue.

[0008] As a further embodiment of this utility model: the housing includes an arc-shaped portion at the top and a flat portion for conforming to the bottom planar structure of the boiler's horizontal flue.

[0009] As a further improvement of this utility model, a high-temperature resistant wear-resistant plate is fixedly installed at the contact position between the shell and the horizontal flue of the boiler.

[0010] As a further improvement of this utility model, the outer side of the high-temperature wear-resistant plate and the position of the shell near the airflow nozzle are coated with a wear-resistant and fire-resistant material layer.

[0011] As a further improvement of this utility model, the inner wall of the air intake sleeve is smooth.

[0012] As a further improvement of this utility model, the inner wall of the buffer turning chamber adopts a streamlined design.

[0013] As a further improvement of this utility model, the high-temperature wear-resistant plate is made of an alloy material with good high-temperature resistance and wear resistance.

[0014] As a further improvement of this utility model, the wear-resistant and refractory material layer is a ceramic matrix composite material.

[0015] Compared with the prior art, the beneficial effects of this utility model are: High-efficiency purging: Utilizing compressed air to impact ash accumulation, it features high-efficiency cleaning, strong durability, and can effectively improve the cleaning efficiency and effect of ash accumulation in horizontal flues. The purging efficiency is significantly higher than that of traditional equipment. Strong adaptability: The shell shape is adapted to the boiler flue, enabling it to adapt to horizontal boiler flues of different sizes and operating conditions; High durability: The high-temperature resistant abrasion plate and abrasion-resistant refractory material layer effectively enhance the durability of the purging device in high-temperature and high-wear environments. Attached Figure Description

[0016] Figure 1 A schematic diagram of a jet purging device for preventing ash accumulation in the horizontal flue of a boiler.

[0017] Figure 2 A schematic diagram of the airflow injection port in a jet purging device used to prevent ash accumulation in the horizontal flue of a boiler.

[0018] The figure shows: 1. Shell; 2. Inlet sleeve; 3. Air guide port; 4. Buffer deflector chamber; 5. Air jet nozzle; 6. High temperature wear-resistant plate; 7. Wear-resistant and fire-resistant material layer; 8. Upper parallel air guide plate; 9. Lower parallel air guide plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2In this embodiment of the utility model, a jet purging device for preventing ash accumulation in a horizontal flue includes a housing 1, an air inlet sleeve 2, an air guide port 3, a buffer deflector chamber 4, an air jet port 5, a high-temperature wear-resistant plate 6, a wear-resistant refractory material layer 7, an upper parallel air guide plate 8, and a lower parallel air guide plate 9. The housing 1 is adapted to the internal shape of the boiler horizontal flue. The housing 1 includes an arc-shaped part at the top and a flat part for fitting the bottom plane structure of the boiler horizontal flue. An air inlet sleeve 2 is installed on the housing 1. One end of the air inlet sleeve 2 is connected to an external compressed air source, and the other end of the air inlet sleeve 2 is connected to the air guide port 3. The housing 1 is provided with a buffer turning chamber 4 connected to the air inlet 3. The buffer turning chamber 4 is used to buffer and turn the compressed air that enters through the air inlet sleeve 2. The housing 1 is provided with an airflow injection port 5 connected to the inside of the buffer turning chamber 4. The airflow injection port 5 is used to spray the compressed air after buffering and turning out at high speed. A high temperature wear-resistant plate 6 is fixedly installed at the contact position between the housing 1 and the boiler horizontal flue. The outer side of the high temperature wear-resistant plate 6 and the position on the housing 1 near the airflow injection port 5 are coated with a wear-resistant refractory material layer 7. The housing 1 is provided with an upper parallel air guide plate 8 and a lower parallel air guide plate 9 located above and below the airflow injection port 5, respectively. The upper parallel air guide plate 8 and the lower parallel air guide plate 9 are used to guide and constrain the airflow ejected from the airflow injection port 5. The inner wall of the air inlet sleeve 2 is smooth to ensure that the compressed air enters the buffer turning chamber 4 stably. The inner wall of the buffer turning chamber 4 adopts a streamlined design to reduce the energy loss of the airflow during the turning process. The shape and size of the airflow injection port 5 are optimized so that the compressed air is ejected onto the boiler flue ash at the best angle and speed. The high-temperature wear-resistant plate 6 is made of high-temperature resistant and wear-resistant alloy material, which can effectively resist the scouring of high-speed airflow and dust. The wear-resistant refractory material layer 7 is a ceramic matrix composite material with high hardness and wear resistance, which can resist the friction of airflow and dust and extend the service life of the purging device.

[0021] The working principle of this utility model is as follows: First, select a suitable purging device according to the actual size and shape of the boiler horizontal flue. Install the purging device inside the flue through its housing 1, so that the flat part of the housing 1 fits against the bottom of the boiler horizontal flue. Fix the purging device firmly to ensure that it will not shake during operation. Then connect the air inlet sleeve 2 to the compressed air source. The compressed air source is turned on, and the air flow is adjusted according to the ash accumulation in the horizontal flue of the boiler through the flow regulating valve on the compressed air source. The compressed air enters the air guide port 3 through the air inlet sleeve 2, and then enters the buffer and turning chamber 4. After being buffered and guided by the upper parallel air guide plate 8 and the lower parallel air guide plate 9, it is ejected at high speed from the air jet port 5 to impact the ash accumulation. The ash accumulation is drawn into the subsequent flue by the flue gas, thereby achieving the purpose of ash accumulation treatment in the horizontal flue and improving the boiler operation safety.

[0022] Regularly check the wear of the shell 1 and the high-temperature wear-resistant plate 6. Replace them in time if the wear is serious. Check whether the wear-resistant and fire-resistant material layer 7 is damaged. If any abnormality is found, find out the cause and deal with it in time.

[0023] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A jet purging device for preventing ash accumulation in horizontal flues, comprising a housing (1), characterized in that: An air intake sleeve (2) is installed on the housing (1). One end of the air intake sleeve (2) is connected to an external compressed air source, and the other end of the air intake sleeve (2) is connected to an air guide port (3). A buffer deflector chamber (4) connected to the air guide port (3) is provided inside the housing (1). An airflow injection port (5) connected to the inside of the buffer deflector chamber (4) is provided on the housing (1). An upper parallel air guide plate (8) and a lower parallel air guide plate (9) are respectively provided on the housing (1) above and below the airflow injection port (5).

2. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 1, characterized in that: The shell (1) is adapted to the internal shape of the boiler horizontal flue.

3. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 1, characterized in that: The housing (1) includes an arc-shaped portion at the top and a planar portion for fitting the bottom planar structure of the boiler's horizontal flue.

4. The anti-horizontal flue ash jetting and purging device according to claim 1, characterized in that: A high-temperature resistant wear-resistant plate (6) is fixedly installed at the contact position between the shell (1) and the horizontal flue of the boiler.

5. The anti-horizontal flue ash jetting and purging device according to claim 4, characterized in that: The outer side of the high-temperature wear-resistant plate (6) and the position of the shell (1) near the airflow nozzle (5) are coated with a wear-resistant and fire-resistant material layer (7).

6. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 1, characterized in that: The inner wall of the air intake sleeve (2) is smooth.

7. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 1, characterized in that: The inner wall of the buffer turning chamber (4) adopts a streamlined design.

8. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 4, characterized in that: The high-temperature wear-resistant plate (6) is made of alloy material with high temperature resistance and good wear resistance.

9. The anti-horizontal flue ash-accumulation jetting and purging device according to claim 5, characterized in that: The wear-resistant and refractory material layer (7) is a ceramic matrix composite material.

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