JPH0232963Y2 - - Google Patents

Description

[Detailed description of the invention] [Detailed description of the invention] Figure 1 schematically shows a steel ball removal soot remover for removing soot etc. adhering to the tube outer surface of exhaust gas economizers and other steam generators. The steel balls 2 stored in the ball storage tank 1 are withdrawn through the distributor 3 and collide with the evaporator pipe 5 in the exhaust gas economizer 4, thereby removing soot from the outer surface of the evaporator pipe 5 and flowing into the lower part 6 of the exhaust gas economizer. Can be collected.

The steel balls thus collected are pumped by air supplied from the air pipe 7, pass through the transport pipe 8, and are stored in the steel ball storage tank 1 again.

In order to prevent the steel balls 2 from flowing into the exhaust gas pipe 11 that sends exhaust gas from the main engine 9 and turbocharger 10 to the exhaust gas economizer 4 during the steel ball removal process, a thin plate of stainless steel or the like is used. An outlet 13 is provided in order to attach the steel ball rebound prevention plate 12 and to collect the steel balls that have flowed into the exhaust gas pipe 11.

However, in the conventional device, even if the steel ball rebound prevention plate 12 is installed, it is not possible to completely prevent the steel balls 2 from flowing into the exhaust gas pipe 11, and the installation of the prevention plate 12 requires a large amount of effort. It takes time and effort.

On the other hand, the work of collecting the steel balls 2 from the steel ball outlet 13 takes time and needs to be performed when the main engine is stopped.

The present invention was proposed to solve these problems, and consists of two semicircular punching plates placed one above the other with a distance between them at the joint between the exhaust gas economizer and the exhaust gas pipe. The present invention relates to an exhaust gas economizer device characterized in that an inclined plate is disposed in connection with the downstream side of the lower semicircular punching plate and descends toward the exhaust gas economizer side.

In the present invention, as described above, two semicircular punching plates are arranged one above the other at a distance from each other at the joint between the exhaust gas economizer and the exhaust gas pipe, and the two semicircular punching plates are disposed one above the other at a distance from each other, and the two semicircular punching plates are placed downstream of the lower semicircular punching plate. An inclined plate connected to the side and descending toward the exhaust gas economizer side is installed to completely prevent steel balls from entering the exhaust gas pipe and to ensure a smooth flow of exhaust gas. It is.

Further, the inclined plate, which is connected to the downstream side of the lower semicircular punching plate and descends toward the exhaust gas economizer side, makes it easier for the steel balls to return to the exhaust gas economizer side.

Furthermore, according to the present invention, two semicircular punching plates are arranged one above the other with a gap between them, without providing a punching plate over the entire cross section of the joint between the exhaust gas economizer and the exhaust gas pipe. As a result, the exhaust gas mainly flows through the rollers that are not closed by the semicircular punching plate,
The resistance is small, and there is no risk of deteriorating the performance of the main engine, and the steel balls can be sufficiently stopped by a semicircular punching plate. It rolls to the side and is collected.

As described above, according to the present invention, an exhaust gas economizer device with improved reliability and performance and reduced cost compared to conventional devices is constructed.

The present invention will be described below with reference to the illustrated embodiments.

At the joint between the exhaust gas economizer 4 and the exhaust gas pipe 11, a pair of upper and lower semicircular punching plates 14, 14 are installed with a space between them, and are further connected to the downstream side of the lower punching semicircular plate 14. An inclined plate 15 is attached which descends toward the exhaust economizer 4 side.

Each punching semicircular plate 14 is provided with as many through holes as possible having a diameter slightly smaller than the diameter of the steel ball.

Therefore, each of the semicircular punching plates 14 physically completely prevents the steel balls from flowing into the exhaust gas pipe 11, and allows the exhaust gas to flow smoothly. In addition, the inclined plate 15
This makes it easier for the steel balls to return to the exhaust gas economizer 4 side.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view showing an outline of a steel ball removal soot remover in a conventional exhaust gas economizer, and FIG. 2 is a vertical cross-sectional view showing an embodiment of the economizer device according to the present invention. This shows the part corresponding to . FIG. 3 is a perspective view of the semicircular punching plate. 4...Exhaust gas economizer, 11...Exhaust gas pipe, 14...Semicircular punching plate, 15...
...Slanted board.

Claims (1)

[Scope of utility model registration request] At the joint between the exhaust gas economizer and the exhaust gas pipe,
Two semicircular punching plates are placed one above the other with a distance between them, and an inclined plate is connected to the downstream side of the lower semicircular punching plate and descends toward the exhaust gas economizer side. An exhaust gas economizer device featuring: