JPS59145419A - Power supply device for soot blower - Google Patents

Abstract

PURPOSE:To provide a compact attaching space, improve durability and reliability of a power source code and function of soot blower by a method wherein the power source code and a wire are wound around one of driver pulleys installed at both ends of a connection rod and at the same time both extremity ends of the power source code and the wire are connected to a driving mechanism integrally installed in the inner end of a lance pipe. CONSTITUTION:When an electric motor 16b is energized through a power supply code 21, the electric motor 16b, gear box 16a and lance pipe 14a are moved in a rightward and leftward direction under a large stroke through a gear mechanism in the gear box 16a by the electric motor 16b, and the lance pipe 14 is rotated and an injection flow of injection liquid is injected from the injection nozzle 15 under an operation of a valve 12. When the driving mechanism 16 is started to move in an arrow direction of (a), the power supply cord 21 is tensioned or pulled through an auxiliary terminal box 16 under that movement, resulting in that a driving pulley (24a) is moved in an arrow direction of (b) and in turn the wire cable 22 is apt to be loosened under a movement of the driving mechanism 16, the driving pulley 24b is also moved in a direction of arrow (b) through the driving pulley 24a and the connector rod 23 to absorb the looseness of the wire cable 22.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a soot blower for removing soot and the like accumulated or attached to the inside of a heat exchanger or the like.

As shown in Figure 1, the conventional soot blower has a pulp (2) disposed at one end of a casing (1), and a jetting medium (2) arranged vertically inside the casing and connected to the pulp (2). A supply pipe (3), a drive mechanism that is slidably attached to the supply pipe (3), has a jet nozzle (5) at its tip, and has a gear box (6α) and an electric motor (6b) at its inner end. (6) A lance tube (4) arranged in one piece, a guide (7) installed vertically inside the casing (1), and a fixed terminal (8) K connected to the guide (71) on the base side. The electric motor (6A) is connected to the electric motor (6A) by an appropriate gear mechanism in the gear box (6α), which is configured by K-connected Karlco'(9>, etc.) and driven by the electric motor (6h). )
The structure is such that the lance tube (4) can be moved left and right as a single unit, and the lance tube (4) can also be rotated.
The injection medium pressurized into the supply pipe (3) by the operation 2) is injected from the injection nozzle (5) provided at the tip of the lance pipe (4), causing the lance pipe (4) to protrude and rotate. This causes the injection nozzle (5) to move as shown by the arrow, creating a jet stream in all directions, resulting in a structure that can efficiently remove soot, etc. that has accumulated or adhered to the inside of a heat exchanger (not shown), etc. over a wide area. There is.

In addition, in another conventional example, as shown in Fig. 2, a fixed terminal (8
It has a structure in which a curtain cord (9) connected to the casing (11) is guided by a guy (7') connected vertically to a part of the casing (11).

However, in the conventional soot blower, Karl Co.
As for 9), it slides with the guide (7) at certain points and is easily worn out, and when it is extended, the cable YK is twisted and is likely to break.
It has disadvantages such as wire breakage at the end of the coat 9 and changes in core tension, and for curtain coats, a wide arrangement swivel is required on the outside of the casing.
They have drawbacks such as being easily caught in the cord (7') and easily broken, and the end of the cord being easily broken when stretched. There are reliability issues.

The present invention relates to a power supply device for a soot blower that has been reviewed in view of the above-mentioned circumstances, and is protruded from a casing by a drive mechanism having an injection nozzle at the tip and integrally disposed at the inner end. In a soot blower equipped with a lance pipe, the power supply line and wire connected to the fixing terminal are hung around each one of the movable pulleys attached to both ends of the connecting rod, and both the front r power supply line and the wire are The feature is that the tip is connected to the drive mechanism, and by applying the movable pulley principle, it has a compact installation space and improves the durability, reliability, and soot blowing function of the power supply line. It provides a power supply device for a soot blower.

The present invention has a front ue configuration, in which the power supply line and the wire connected to the fixed terminal are hung around each one of movable pulleys attached to both ends of the connecting rod, and the front power supply line and wire are connected to the front ue. Since both ends of the wire are connected to a drive mechanism that is integrally provided at the inner end of the lance tube, as the drive mechanism moves, the power supply line is smoothly fed out through rolling contact over almost the entire length. This significantly improves durability and reliability with almost no twisting or wear, and the stroke of the drive mechanism and lance tube is approximately twice the amount of movement of the movable pulleys attached to both ends of the connecting rod. As a result, the installation space of the power supply device is significantly more compact, and the soot blowing function and reliability are significantly improved.

Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

Fig. 3 shows the actual salary of the present invention, in which 0υ is the casing, 0 is the injection medium supply side valve installed at one end of the casing (01), and 03 is the valve installed vertically in the casing (II). a supply pipe installed and connected to valve Q21, (14)
is slidably fitted into the supply pipe (tl), has a jet nozzle a9 at its tip, and has a drive mechanism Oe consisting of a gear box (16α) and an electric motor (16A) integrally disposed at its inner end. The gear mechanism in the gear box (16α) driven by the electric I!I! (16h)
Electric motor (16A), gear box Q6α) and lance tube (1
41 is integrally moved left and right as shown in the figure, and the lance pipe (14) is rotated, and the injection medium press-fitted into the supply pipe Q31 by operating the valve α2 is transferred through the lance pipe (14). The structure is such that the jet stream is ejected in all directions from the injection nozzle 0!51.

Furthermore, as shown in Fig. 3, the power supply device of this actual power supply has a power supply line, that is, a power supply side cord (21), and a wire, that is, a wire cable (
A), and at the same time, connect the power supply side cord Y (211) to the movable pulley (24α) side of the movable pulley (24α) (24h) rotatably attached to both ends of the connecting rod, and Synchronous pulley (24b)
The front end side of the image of □□ is connected to the electric motor (16b) of the drive mechanism 00 via an auxiliary terminal box (16C).

It is also possible to use an air motor instead of the electric motor (16Z+), and when an air motor is provided, an air hose is used instead of the front power supply side cord (21).

The illustrated embodiment has the above-mentioned configuration, so when the electric motor (16A) is energized through the power supply side cord (211), the gear box (16α) is turned on by the electric motor (16A).
As in the case of Fig. 1, the electric motor (1
6h), the gear box (16α) and the lance tube (14α) are moved with a large stroke to the left and right in the figure, and the lance tube I is rotated, and the injection nozzle is 0!
A jet stream of jet medium is ejected from 19.

In addition, as shown in FIG. 4 (Al(B)), when the drive mechanism 0 starts moving to the right side of the figure, that is, in the direction of the arrow q, the power supply side cable (21+) is moved to the auxiliary terminal box ( 16
C), but since the power supply side coat-1) is connected to the fixed terminal (box) (2DK), the movable pulley (24
α) is moved in the direction of the arrow 1 port), and on the other hand, the wire cable (A) becomes loose due to the movement of the drive mechanism 06), and is connected to the movable pulley (24α) via the movable pulley (24α) and the connecting rod (c).
h) is also moved in the direction of the arrow (b) to absorb the slack in the wire cable (a).

Therefore, the movable pulley (24α) (24A) and the connecting rod (
The movement range of c) is L/2, and the power supply device of this embodiment can be configured to be compact with a relatively narrow mounting space, and the stroke of the lance tube (14) is greatly expanded. Ru.

Therefore, according to the embodiment, by applying the movable pulley principle, the moving range of the power supply device is approximately half that of the drive mechanism, resulting in smooth operation and a compact mounting swivel for the co-moving power supply device. In addition, the power supply line (power supply cable)'' or air hose) has uniform rolling contact over almost its entire length, and the number of bends is as few as 2 per one reciprocation of the lance tube a4), so there is no wear or twisting. , durability and reliability are significantly improved, and the soot blowing function and reliability are also significantly improved due to the increased stroke amount of the lance tube.

Note that although the specific gear mechanism in the gear box (16α) in the drive mechanism is not explained above, a gear mechanism that performs the above functions can be easily implemented using various known mechanisms. Furthermore, since the structure having the above function is not limited to a gear mechanism, a detailed explanation thereof will be omitted.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes can be made without departing from the spirit of the present invention. .

[Brief explanation of drawings]

Fig. 1 is a longitudinal mechanical diagram showing a conventional soot blower, Fig. 2 is a longitudinal mechanical diagram showing the other side, Fig. 6 is a longitudinal mechanical diagram showing an embodiment of the present invention, and Fig. 4 (Al ( Bl is an explanatory diagram of the action in Fig. 6. 11: Casing 12: Valp 13: Supply pipe 14: Lance pipe 15: Spray nozzle 16: Drive mechanism 20: Fixed terminal (box) 21
: Power supply line (power supply side coat 9, air hose) 22: Wire (wire cable) 2211 = Connecting rod 24α, 24h: Driving pulley sub-representative Patent attorney Shige Okamoto 2 persons (9) 103 Procedural amendment (method) ) June 3, 1981 Kazuo Wakasugi, Commissioner of the Patent Office1, Indication of the case 1988 Patent Application No. 188962, Title of the invention Power supply device for soot blower 3, Name of the famous case for amendment Related Patent Applicant: (620) Mitsubishi Heavy Industries, Ltd. 4, Sub-Agent: Toranomon Industrial Building, 2-29 Toranomon-chome, Minato-ku, Tokyo 105 (501') 28095, Date of Amendment Order: May 1980 31st (shipping date) 6. Subject to correction
"Brief explanation of drawings section" 7 in the specification, contents of amendment "Figure 4 (A)" in page 8, line 18 to line 19 of the same page in the specification
(B) is an explanatory diagram of the action of FIG. 3. ” is corrected as follows. ``Figure 4 shows the operation mode of the power supply section in Figure 3 (A
) It is a side view which shows (B). ”105-

Claims (1)

[Claims] In a soot blower equipped with a lance pipe that has an injection nozzle at its tip and is protruded from a casing by a drive mechanism that is integrally arranged at its inner end, a power supply line and a wire connected to a fixed terminal are connected to a connecting rod. A power supply device for a soot blower characterized by a structure in which the power supply line and the ends of the wire are connected to the drive mechanism described above, while the power supply line is wound around one of movable pulleys attached to both ends of the power supply line.