阅读说明：本技术 一种燃煤锅炉水平烟道吹灰器 (Soot blower for horizontal flue of coal-fired boiler ) 是由 李勇 吴东垠 于 2021-08-30 设计创作，主要内容包括：本发明公开了一种燃煤锅炉水平烟道吹灰器,包括橡胶材质的气球、天然气、气球托、火花塞、拉线保护管、火花塞拉线、把手支架、把手压杠、压力弹簧、弹簧内轴等结构。橡胶材质的气球中充入天然气与空气按一定比例混合的气体。气球托尾部放置的火花塞通过拉线与把手连接,用以控制整个装置的起爆。用天然气爆炸产生的冲击波来清理燃煤电厂锅炉水平烟道的积灰。本发明相较于传统的吹管吹灰,节省了大量的吹管,一台设备便可达到定向吹灰的目的,而且不需要抽取蒸汽,提高了发电效率,同时大大提高了电厂的经济性。使得燃煤的清理工作变得简便、安全、有效、快捷,进而提升整个提高发电厂的安全系数,大大提升发电厂的经济性。(The invention discloses a soot blower for a horizontal flue of a coal-fired boiler, which comprises a balloon made of rubber, natural gas, a balloon support, a spark plug, a stay wire protection tube, a spark plug stay wire, a handle support, a handle pressing rod, a pressure spring, an inner spring shaft and other structures. The balloon made of rubber is filled with gas mixed by natural gas and air according to a certain proportion. The spark plug arranged at the tail part of the balloon support is connected with the handle through a pull wire so as to control the detonation of the whole device. The blast wave generated by natural gas explosion is used for cleaning the accumulated dust in the horizontal flue of the boiler of the coal-fired power plant. Compared with the traditional soot blowing by a blowing pipe, the invention saves a large amount of blowing pipes, can achieve the purpose of directional soot blowing by one device, does not need to extract steam, improves the power generation efficiency and greatly improves the economy of a power plant. The coal-fired cleaning work becomes simple, convenient, safe, effective and quick, so that the safety factor of the whole power plant is improved, and the economical efficiency of the power plant is greatly improved.)

1. A coal fired boiler horizontal flue soot blower which characterized in that: the novel gas-powered spark plug comprises a rubber balloon (1), natural gas (2), a balloon support (3), a spark plug (4), a stay wire protection tube (5), a spark plug stay wire (6), a handle support (7), a handle pressing lever (8), a spring inner shaft a (9), a pressure spring a (10), a spring inner shaft b (11), a pressure spring b (12), a through hole (13) in the balloon support, a spark plug pull ring (14), a counter bore a (15), a counter bore b1(16) and a counter bore b2 (17); a rubber balloon (1) is placed on a balloon support (3), natural gas (2) is filled in the rubber balloon (1), a spark plug (4) is installed at the tail of the balloon support (3), the spark plug (4) is connected with a spark plug pull wire (6), a pull wire protective tube (5) is sleeved outside the spark plug pull wire (6), the other end of the spark plug pull wire (6) is fixedly connected with a handle pressing bar (8) in a threaded mode, the handle pressing bar (8) is placed in a sliding groove of a handle support (7), a spring inner shaft a (9) and a spring inner shaft b (11) are arranged on the handle support (7), a pressure spring a (10) and a pressure spring b (12) are respectively sleeved outside the spring inner shaft a (9) and the spring inner shaft b (11), the heads of the spring inner shaft a (9) and the spring inner shaft b (11) are respectively placed in corresponding countersunk holes of the handle pressing bar (8), the tail of the balloon support (3) is provided with a counter bore a (15), and the handle pressing bar (8) is provided with a counter bore b1(16) and a counter bore b2 (17).

2. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the balloon (1) made of rubber is filled with natural gas (2); high-temperature resistant viscous liquid is smeared between the balloon (1) and the balloon support (3) which are made of rubber materials.

3. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the tail of the balloon holder (3) is provided with a counter bore a (15), a spark plug (4) is placed in the counter bore a (15), the spark plug (4) is in coaxial clearance fit with the counter bore a (15), and the clearance is 2 mm.

4. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the bottom end of the spark plug (4) is provided with a pull ring (14), the connection mode of the pull ring (14) and the spark plug stay wire (6) is lock catch connection, the outside of the spark plug stay wire (6) is wrapped with a layer of high temperature resistant stay wire protection pipe (5), the stay wire protection pipe (5) is connected to the handle support (7) in a threaded mode, and the spark plug stay wire (6) in the stay wire protection pipe (5) is fixed on the handle pressing bar (8) in a welding mode.

5. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the handle support (7) is provided with two symmetrically placed spring inner shafts a (9) and a spring inner shaft b (11), the outer diameters of the two spring inner shafts are both 26mm, the center distance between the two spring inner shafts is 80mm, the spring inner shafts a (9) and the spring inner shafts b (11) are fixed on the handle support (7) in a welding mode, compression springs a (10) and compression springs b (12) are respectively sleeved outside the spring inner shafts a (9) and the spring inner shafts b (11), the inner diameters of the compression springs a (10) and the compression springs b (12) are both 28mm, and the outer diameters of the compression springs a (10) and the compression springs b (12) are both 32 mm; the spring inner shafts a (9) and b (11) can slide freely in the counter bores b1(16) and b2(17) of the handle pressing lever (8).

6. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the balloon (1) and the natural gas (2) made of rubber are disposable articles and are not recycled.

7. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the balloon support (3), the spark plug (4), the stay wire protection tube (5), the spark plug stay wire (6), the handle support (7), the handle pressing lever (8), the spring inner shaft a (9), the pressure spring a (10), the spring inner shaft b (11) and the pressure spring b (12) are all made of recyclable materials and need to be recycled.

8. The coal-fired boiler horizontal flue soot blower of claim 1, characterized in that: the lengths of the stay wire protection tube (5) and the spark plug stay wire (6) are both adjustable.

Technical Field

The invention relates to the field of thermal power plants, in particular to design and manufacture of a horizontal flue soot blower of a boiler of a coal-fired power plant, which is applied to soot blowing of the horizontal flue of the boiler of the coal-fired power plant.

Technical Field

When the boiler runs on a hearth for a long time, the horizontal flue of the coal-fired boiler deposits ash due to the combustion of coal, the heat resistance of a heating surface is increased due to excessive ash on the heating surface, the heat conductivity coefficient is reduced, the heat transfer effect is influenced, the exhaust gas temperature is increased, the boiler efficiency is reduced, and the pipe explosion accident of the superheater can be caused in severe cases. Therefore, the soot blower is used regularly to remove the soot on various heating surfaces in time, which is important for ensuring the safe and economic operation of the boiler. At present, the traditional soot blowing modes comprise steam soot blowing, sound wave soot blowing, shock wave soot blowing and the like. Steam blows grey, the soot blower of models such as IR-3D has appeared, but this kind of soot blower includes actuating system, braced system, backup pad system, cam device, gooseneck valve etc. and the structure is complicated, it is extremely inconvenient to use, and the steam soot blower blows the pipe wall easily, blow phenomena such as the ash gun barrel easily takes place the jam, malfunctioning, steam leakage, equipment fault rate is higher relatively, though guaranteed the integrality that whole furnace blown the ash, but whole process will consume a large amount of manpower and financial resources, and the cost time is very much, constitute potential safety threat to the people simultaneously. The acoustic soot blowing is generally used at high-temperature parts in a furnace, is effective on loose soot deposits and has poor effect on scaling parts of low-temperature sections. The shock wave has the advantages of short soot blowing time, high efficiency, obvious soot blowing effect and the like, but the traditional shock wave soot blowing also has the defects that the soot blowing area and the soot blowing strength cannot be accurately controlled, and the energy is weaker in the furnace and the soot blowing effect is poorer in the furnace. Therefore, the design of the soot blower for the horizontal flue of the coal-fired boiler, which is simple, convenient, safe and effective and can accurately control the soot blowing area, is very important.

Disclosure of Invention

The invention mainly solves the technical problem of providing a design and manufacturing scheme of a soot blower of a horizontal flue of a coal-fired boiler, which is applied to soot blowing of the horizontal flue of the coal-fired power plant boiler, has large impact energy, is suitable for loose soot deposition and cohesive soot deposition, thoroughly and effectively blows soot, has short soot blowing time, high speed and obvious soot removing effect, can accurately control a soot blowing area and soot blowing strength, can obviously reduce smoke resistance and smoke discharging temperature, can achieve the aim of directional soot blowing by only one soot blower, does not need air extraction by using the soot blower, ensures that the cleaning work of the inner wall of the horizontal flue of the coal-fired boiler becomes simple, safe, effective and quick, further improves the efficiency of the whole boiler, improves the power plant of the power plant, and greatly improves the economy of the power plant.

In order to solve the above problems, the present invention adopts a technical solution that:

designing and manufacturing a soot blower for a horizontal flue of a coal-fired boiler, which is characterized in that: the novel balloon comprises a balloon (1) made of rubber, natural gas (2), a balloon support (3), a spark plug (4), a stay wire protection tube (5), a spark plug stay wire (6), a handle support (7), a handle pressing rod (8), a spring inner shaft a (9), a pressure spring a (10), a spring inner shaft b (11), a pressure spring b (12), a through hole (13) in the balloon support, a spark plug pull ring (14), a counter bore a (15), a counter bore b1(16) and a counter bore b2 (17).

The pressure spring a (10) and the pressure spring b (12) are identical in structure; the spring inner shaft a (9) and the spring inner shaft b (11) have the same structure; the structures of the counter bores b1(16) and b2(17) are identical.

High-temperature-resistant viscous liquid is coated between the balloon (2) made of rubber and the balloon support (3), so that the balloon (2) and the balloon support (3) are not separated; the balloon (2) made of rubber material is close to but not contacted with the spark plug (4), so that electric arcs generated by the spark plug can be ensured to be contacted with the balloon; the balloon support is provided with three through holes (13) for fixing the balloon, so that the balloon (2) is not separated from the balloon support (3), a 2mm gap is formed between the spark plug (4) and the balloon support (3), and sufficient space for dismounting is ensured when the spark plug is replaced; a pull ring (15) at the tail of the spark plug (4) is connected with a spark plug pull wire (6) through a lock catch, and a gap of 2mm is arranged at the joint, which is the installation allowance; two ends of the stay wire protection tube (5) are respectively connected with the balloon support (3) and the handle bracket (7) through threads.

The spark plug pull wire (6) is welded with the handle pressing bar (8); a gap of 4mm is reserved between the handle pressing bar (8) and the handle bracket (7), so that the handle pressing bar and the handle bracket can slide normally.

The spring inner shaft a (9) and the pressure spring a (10) are in coaxial clearance fit, the clearance is 4mm, the spring inner shaft a (9) and a counter bore b1(16) on the handle pressing lever (8) are in clearance fit, the clearance is 2mm, and the handle pressing lever (8) and the spring inner shaft a (9) can slide mutually; the spring inner shaft b (11) is in coaxial clearance fit with the pressure spring b (12), the clearance is 4mm, the spring inner shaft b (11) is in clearance fit with a counter bore b2(17) on the handle pressing lever (8), and the clearance is 2mm, so that the handle pressing lever (8) and the spring inner shaft b (11) can slide mutually.

Drawings

FIG. 1 is a front view of a horizontal flue sootblower of a coal fired boiler of the present invention;

FIG. 2 is a partial cross-sectional view of a spark plug of a horizontal flue sootblower of a coal-fired boiler in accordance with the present invention;

FIG. 3 is a three-view illustration of a horizontal flue sootblower of a coal-fired boiler in accordance with the present invention;

FIG. 4 is a left side sectional view of a horizontal flue sootblower of a coal fired boiler in accordance with the present invention;

FIG. 5 is a partial cross-sectional view of a handle of a horizontal flue sootblower of a coal fired boiler in accordance with the present invention;

FIG. 6 is a partial cross-sectional view of the joint of a pull wire and a handle of a spark plug in a soot blower of a horizontal flue of a coal-fired boiler according to the present invention.

Detailed Description

The invention is further described in detail below with reference to the drawings and the detailed description so that the advantages and features of the invention will be more readily understood by those skilled in the art, and the scope of the invention will be clearly and clearly defined.

The invention relates to a soot blower for a horizontal flue of a coal-fired boiler, which is characterized in that: the novel balloon comprises a balloon (1) made of rubber, natural gas (2), a balloon support (3), a spark plug (4), a stay wire protection tube (5), a spark plug stay wire (6), a handle support (7), a handle pressing rod (8), a spring inner shaft a (9), a pressure spring a (10), a spring inner shaft b (11), a pressure spring b (12), a through hole (13) in the balloon support, a spark plug pull ring (14), a counter bore a (15), a counter bore b1(16) and a counter bore b2 (17).

As a core device of the present invention, as shown in fig. 1, a balloon (2) made of rubber is filled with a gas (1) in which natural gas and oxygen are mixed in a certain ratio; the balloon (2) made of rubber is fixed on the balloon support (3) through high-temperature resistant viscous liquid; the tail of the air ball support (3) is provided with a counter bore a (15), a spark plug (4) is arranged in the counter bore a (15), the spark plug (4) and the air ball support (3) are fixed at the bottom of the air ball support in a coaxial clearance fit mode, and a 2mm clearance is formed between the spark plug (4) and the air ball support (3); the two ends of the stay wire protection tube (5) are fixedly connected with the balloon support (3) and the handle bracket (7) through bolts.

As shown in fig. 2, a-a is a partial cross-sectional view of the balloon holder, the rubber balloon (2) is close to but not in contact with the spark plug (4), so that the electric arc generated by the spark plug can contact the balloon; the balloon support is provided with three through holes (13) for fixing the balloon and ensuring that the balloon (2) does not depart from the balloon support (3); and a pull ring (14) at the bottom of the spark plug is connected with a spark plug pull wire (6) through a lock catch.

As shown in figure 3, the center lines of the balloon (2) made of rubber, the balloon support (3), the spark plug wire-pulling protection tube (5), the handle bracket (7), the handle pressing bar (8) and the spring are positioned on the same straight line, and the whole structure of the device can be seen from the three views.

As shown in figure 4, a layer of stay wire protection tube (5) is wrapped outside the spark plug stay wire, and a 2mm gap is formed between the spark plug stay wire and the stay wire protection tube, so that the spark plug stay wire (6) can freely slide in the stay wire protection tube (5).

As shown in fig. 5, the spark plug wire (6) and the handle pressing bar (7) are welded; the spring a (10) and the spring b (12) have the same structure, and the spring inner shaft a (9) and the spring inner shaft b (11) have the same structure; the spring inner shaft a (9) can freely slide in a counter bore b1(16) of the handle pressing lever (8); the handle pressing bar (8) and the handle bracket (7) can slide mutually, and a gap of 2mm is formed between the handle pressing bar and the handle bracket.

As shown in fig. 6, the spark plug wire (6) can slide freely in the hole of the handle bracket (7), and the spark plug wire (6) is welded with the handle pressure lever (8).

Specific operation and explanation: firstly, gas mixed by oxygen and natural gas is filled into the balloon according to a certain proportion. Secondly, fixing the balloon on the balloon support. Get into from the position of original blowpipe, put the place that coal fired power plant boiler horizontal flue needs clearance with the balloon support together with the spark plug stay wire, because the spark plug stay wire is made by the steel wire, its outer stay wire protection tube is made by high temperature resistant toughness material, can be convenient put the assigned position with balloon support part accurately the safe position of handheld handle station outside coal fired boiler horizontal flue presses down the thick stick, the spark plug ignites, the balloon of rubber material explodes in the twinkling of an eye, the natural gas oxygen mist that exposes immediately explodes with the fire contact, produce huge shock wave, the coal ash that strikes coal fired boiler horizontal flue makes it drop, reach the mesh of blowing.