TW201833480A - Heat storage material cleaning apparatus - Google Patents

Abstract

This invention provides for heat storage material cleaning apparatus capable of quickly and easily cleaning a plurality of ball type heat storage materials in a heat storage chamber. A heat storage material cleaning apparatus includes a blower 6 absorbing an air in a heat storage chamber 2 for receiving a plurality of ball type heat storage materials 2a, the heat storage chamber being installed in a regenerative burner, a hollow pipe 9 having a vacuum hole 9d for absorbing the air in the heat storage chamber and being connected with the blower, an agitating member 12 having a rotating shaft 10 and a bladed wheel 11, the rotating shaft being inserted into the pipe with a space apart from an inner peripheral surface of the pipe, and the bladed wheel being attached with a tip of the rotating shaft with a protrusion from the pipe, and a driving motor 13 driving the agitating member.

Description

 Regenerative cleaning device  

The present invention relates to a heat storage body cleaning device which can easily clean a spherical heat storage body provided in a heat storage tank in a shorter time.

As a regenerator cleaning device for a regenerative alternating burner of an industrial heating furnace, for example, it is known that an adherent adhering to a regenerator of a heat storage tank is dropped by a grating to an inspection tank located below the heat storage tank. The vibrator to be cleaned (for example, refer to Patent Document 1). In the vibrator, the vibrator attached to the heat accumulator is dropped into the inspection tank by inserting the vibrator at the tip end into the heat storage tank and imparting vibration to the heat accumulator.

Further, a Regenerative Burner having a cleaning function of a heat storage body (for example, refer to Patent Document 2) and a cleaning system for a heat storage body (for example, refer to Patent Document 3), which has a heat storage body, is also known. The regenerative system in the regenerative burner of the cleaning function includes: a rotatable stirring fin disposed in the regenerator; a driving device that rotationally drives the stirring fin; and a discharge port for removing the dust from the regenerator The exhaust system of the heat storage body is taken into the suction hose and the burner side suction pipe by the spherical heat storage body from the heat storage tank, and is circulated in the suction pipe. On the other hand, the deposit is separated from the surface of the spherical heat accumulator, and the spherical heat accumulator whose deposit has been separated is refilled into the heat storage tank.

 [Previous Technical Literature]    [Patent Literature]  

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2007-309597

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2005-257200

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2006-266673

When the vibrator is used as described above and the deposit is dropped into the inspection tank by vibration, it is necessary to carry out the inside of the air supply/exhaust pipe into which the deposit is dropped and accumulated in the inspection tank or the deposit enters. Cleaning, cleaning operations take a lot of time and the work is complicated. Further, when the rotatable stirring blade is placed in the heat storage chamber, there is a possibility that the rotating mechanism is thermally deformed by the high temperature gas passing through the regenerator to cause malfunction. In addition, when the spherical heat storage body is taken out from the heat storage tank and the deposit is separated from the surface of the spherical heat storage body, the extraction and filling operation of the spherical heat storage body takes a lot of time and the work is complicated, and the cleaning operation needs to be extensive. space.

The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a heat storage body cleaning device that can easily clean a spherical heat storage body provided in a heat storage tank in a shorter period of time.

A heat storage device cleaning device according to the present invention includes: a suction device that sucks a gas in the heat storage tank of a regenerative burner having a heat storage tank having a spherical heat storage body; and a pipe connected to the suction The device includes a gas suction hole of the heat storage tank; and a stirring member having a rotating shaft that is inserted into the tube and provided with a gap between the inner circumferential surface of the tube, and protrudes from the tube at the front end An impeller is provided; and a rotating mechanism that rotates the agitating member.

The regenerator cleaning device of the present invention is characterized in that a dust collecting chamber is connected to the suction device.

In the regenerator cleaning device of the present invention, the suction device and the pipe system are connected by a hose, and the suction device is provided to be movable along a rail.

A thermal storage device cleaning device according to the present invention includes a vibration applying device that applies vibration to the agitation member.

In the regenerator cleaning device of the present invention, the tube includes a communication hole that communicates the outside of the regenerative burner with the gap.

In the heat storage body cleaning device of the present invention, the spherical heat storage body provided in the heat storage tank can be easily cleaned in a shorter time.

1‧‧‧ Regenerative cleaning device

2‧‧‧heat storage tank

2a‧‧‧ Thermal storage

3‧‧‧ Grille

4‧‧‧ outer wall

5‧‧‧ Cover

5a‧‧‧ openings

6‧‧‧Blowers

7‧‧‧ bag filter

7a‧‧‧air inlet

7b‧‧‧Exhaust port

7c‧‧‧ dust filter

7d‧‧‧dust gathering department

7e‧‧‧室

8‧‧‧Connecting hose

9‧‧‧ tube

9a‧‧‧Handle

9b‧‧‧Flange

9c‧‧‧Connected holes

9d‧‧‧ suction hole

9e‧‧‧Connector

9f‧‧‧ front end cover

9g‧‧‧Sliding slit

9h‧‧‧ screw hole

9i‧‧‧ bolt

10‧‧‧Rotary axis

11‧‧‧ Impeller

11a‧‧‧Connecting Department

11b‧‧‧Axis

11c‧‧‧Flap

12‧‧‧Agitating members

13‧‧‧Drive motor

13a‧‧‧Motor shaft

14‧‧‧ Mixing tube unit

15‧‧‧ Track

16‧‧‧Regenerative cleaning device

17‧‧‧Dust box

17a‧‧‧Connected pipe

17b‧‧‧dust room

17c‧‧‧Exhaust port

18‧‧‧fan

19‧‧‧Blower motor

20‧‧‧Flexible joints

21‧‧‧Heads

21a‧‧‧ head body

21b‧‧‧ Protrusion

22‧‧‧ Heavy objects

H‧‧‧ combustion chamber

Space above S1‧‧‧

Space below S2‧‧

Fig. 1 is an explanatory view showing a first embodiment of a heat storage body cleaning device according to the present invention.

Fig. 2 is a front cross-sectional view showing the agitating tube unit of the regenerator cleaning device shown in Fig. 1.

Figure 3 is a side cross-sectional view of the agitating tube unit shown in Figure 2.

Fig. 4 is an explanatory view showing a modification of the heat storage body cleaning device according to the first embodiment shown in Fig. 1 .

Fig. 5 is a cross-sectional view showing a second embodiment of the heat storage body cleaning device of the present invention.

Fig. 6 is a cross-sectional view showing a modification of the heat storage body cleaning device of the second embodiment shown in Fig. 5 .

7(A) and 7(B) are cross-sectional views showing main parts of a modification of a tube provided in the heat storage body cleaning device of the present invention.

Hereinafter, a preferred first embodiment of the heat storage body cleaning device of the present invention will be described in detail with reference to the accompanying drawings. As shown in Fig. 1, the heat storage device cleaning device 1 of the first embodiment is installed, for example, in the heat storage tank 2 of the regenerative burner, and is used when the plurality of heat storage bodies 2a having a spherical shape are cleaned in the heat storage tank 2.

In the present embodiment, the regenerative burner is configured to have the heat storage tanks 2 connected to both sides of the combustion chamber H, and the exhaust gas that has passed through the combustion chamber H and the combustion air supplied to the combustion chamber H alternately pass heat storage. Slot 2.

Above and below the heat storage tank 2, spaces S1 and S2 for forming an air flow passage through which the exhaust gas and the combustion air pass are provided, and a space S1 provided above the heat storage tank 2 is connected to the combustion chamber H provided on the side thereof. Further, a grid 3 is provided at a boundary portion between the space S2 disposed below the heat storage tank 2 and the heat storage tank 2.

The outer wall 4 above the covering space S1 of the heat storage tank 2 is provided with an opening 5a that communicates the space S1 with the outside, and has an openable and closable cover 5, and the cleaning system of the heat storage body 2a opens the cover 5 The opening 5a is performed.

The heat storage device cleaning device 1 according to the first embodiment includes a blower 6 as a suction device for sucking gas in the heat storage tank 2, and a tube 9 which is connected to the blower 6 via the bag filter 7 and is bendable or expandable. Connected to the hose 8 and connected; the stirring member 12 has a rotating shaft 10 inserted into the tube 9, and has an impeller 11 at a front end of the rotating shaft 10 protruding from the tube 9; and a driving motor 13 as a stirring member 12 rotating rotating mechanism.

In the heat storage body cleaning device 1 , the air blower 6 and the bag filter 7 are installed on the ground side of the regenerative burner, and the pipe 9 connected to the bag filter 7 by the connection hose 8 is opened from the opening above the heat storage tank 2 . 5a is inserted and used.

The bag filter 7 has a chamber 7e having an intake port 7a and an exhaust port 7b, and a dust collecting filter 7c is provided between the intake port 7a and the exhaust port 7b, and the intake port 7a is attached to the connecting hose 8 The exhaust port 7b is connected to the blower 6 so as to be freely connectable. Inside the chamber 7e, a dust collecting portion 7d for dust accumulation by the dust collecting filter 7c is provided.

As shown in Fig. 2 and Fig. 3, the tube 9 has a handle 9a for the operator to hold on the one end side, and is inserted from the opening 5a while the operator holds the handle 9a outside the regenerative burner. In other words, the tube 9 has a length in which the other end portion (front end) can be inserted into the heat storage tank 2 while the operator holds the handle 9a outside the regenerative burner. At the end of the holding side of the tube 9, a flange portion 9b that protrudes outward from the tube 9 is provided, and a drive motor 13 is fixed to the flange portion 9b so as to close the tube 9.

Further, on the outer peripheral surface of the holding side of the tube 9, more specifically, when the tube 9 is inserted from the opening 5a, it is placed above the opening 5a, and at the position protruding toward the outside, the outside is connected to the inside of the tube 9. The communication hole 9c.

The drive motor 13 fixes the motor shaft 13a toward the inside of the tube 9, and the rotary shaft 10 connected to the motor shaft 13a protrudes from the front end of the tube 9. At the front end of the rotating shaft 10, an impeller 11 is protruded from the tube 9. Here, the rotating shaft 10 and the impeller 11 correspond to the stirring member 12.

The impeller 11 is detachably provided at the front end of the rotating shaft 10, and has a coupling portion 11a coupled to the rotating shaft 10, a shaft portion 11b extending from the coupling portion 11a, and a flap 11c radiating around the shaft portion 11b. Prominent. Here, the impeller 11 may be fixed to the rotating shaft 10 without being detachably attached.

The shaft portion 11b is provided to be linearly connected to the rotating shaft 10 when the connecting portion 11a is attached to the rotating shaft 10, and the fins 11c are provided at two positions on the front end side of the shaft portion 11b and the connecting portion 11a side. On the distal end side and the connecting portion 11a side, four fins 11c are radially protruded in the circumferential direction of the shaft portion 11b.

Since the diameters of the motor shaft 13a and the rotating shaft 10 are sufficiently smaller than the inner diameter of the tube 9, a gap is provided along the longitudinal direction of the tube 9 between the inner surface of the tube 9 and the outer peripheral surfaces of the motor shaft 13a and the rotating shaft 10. Further, a connecting hose 8 connected to the bag filter 7 is connected to the port 9e provided on the side surface of the tube 9 on the side to be held by the operator. In the following description, a portion including the tube 9, the drive motor 13, and the stirring member 12 connected to the connection hose 8 is referred to as a stirring tube unit 14.

The actual cleaning operation is performed in a state where the operation of the combustion chamber H is stopped. The regenerator cleaning device 1 of the first embodiment is rotated by the drive motor 13 when the switches of the blower 6 and the drive motor 13 are turned on. The impeller 11 is rotated, whereby the gas in the heat storage tank 2 is sucked from the front end of the tube 9 forming the suction hole 9d, and the gas passing through the tube 9, the connection hose 8, and the bag filter 7 is discharged to the outside. At this time, the plurality of heat storage bodies 2a are agitated by the rotating impeller 11, and the fins 11c collide with the heat storage bodies 2a and the heat storage bodies 2a and rub against each other, and the dirt such as soot adhered to the heat storage bodies 2a becomes powdery. The dust was peeled off.

The dust which has been peeled off from the heat storage body 2a is sent to the bag filter 7 in accordance with the sucked gas, is removed by the dust collecting filter 7c, and is deposited on the dust collecting portion 7d. In this way, the heat storage body 2a is taken out from the heat storage tank 2 and cleaned in the heat storage tank 2. The dust which has been peeled off from the heat storage body 2a is sucked from the stirring pipe unit 14 together with the gas and trapped in the bag filter 7, so that it does not accumulate in the space S2 below the heat storage tank 2 and the grille 3. Therefore, it is not necessary to clean the space S2, so that the cleaning of the heat storage body 2a can be completed in a shorter time.

On the other hand, the gas from which the dust is removed by the dust collecting filter 7c is discharged to the outside from the exhaust port of the blower 6. At this time, not only the outside air is sucked from the front end of the tube 9, but also the outside air is sucked from the communication hole 9c provided on the outer peripheral surface of the holding side of the tube 9. The temperature in the heat storage tank 2 is increased due to the operation so far, but the high-temperature gas system sucked into the heat storage tank 2 of the tube 9 is mixed with the external air sucked from the communication hole 9c to be cooled to a soft state. Tube 8 side. Thereby, it is possible to prevent the drive motor 13, the connecting hose 8, the bag filter 7, the blower 6, and the like from being damaged by the high temperature gas. At this time, the heat storage tank 2 is not actively cooled, and only the gas flowing to the side of the connection hose 8 is cooled by the outside air, so that the heat storage body 2a can be cleaned without causing the temperature of the heat storage tank 2 to drop rapidly. Further, the dust raised by the agitation is sucked from the communication hole 9c, so that the effect of preventing the work environment from being deteriorated can be obtained. Therefore, the regenerative burner can be re-operated more quickly after the cleaning is completed.

In the heat storage material cleaning device 1 of the first embodiment, the connection hose 8 is detachably provided to the bag filter 7. Therefore, when a plurality of regenerative burners are provided, each of the regenerative burners is provided in advance. A blower 6 and a bag filter 7 are disposed beside the respective regenerative burners, and the connecting hose 8 and the agitating tube unit 14 are removed from the bag filter 7, and the bag filter 7 disposed beside the other regenerative burner The battery is connected and replaced, whereby the heat storage bodies 2a of the plurality of regenerative burners can be easily cleaned.

In the above embodiment, the example in which the air blower 6 and the bag filter 7 are provided on the side of each of the regenerative burners has been described. However, the present invention is not limited thereto. For example, as shown in FIG. The upper part of the building is provided with a plurality of regenerative burners, and the track 15 is arranged along the direction of the arrangement of the plurality of regenerative burners, and the blower 6 and the bag filter 7 are suspended in the manner of being movable along the rail 15 The rail 15 is connected to the agitating tube unit 14 via a connecting hose 8 in the suspended bag filter 7.

In this case, it is not necessary to provide a plurality of the blower 6 and the bag filter 7, so that the equipment cost can be suppressed. Further, since the blower 6 and the bag filter 7 are moved along the rail 15, it is not necessary to replace the connecting hose 8 and the stirring tube unit 14 from the bag filter 7. Therefore, it is possible to provide the heat storage body cleaning device 1 which is more excellent in workability. The rail 15 may be placed on the ground. However, if the blower 6 and the bag filter 7 are suspended from the rail 15 provided above, the space around the regenerative burner can be used in a wider range without hindrance.

Further, if only the bag filter 7 is used for the purpose of cleaning, the sucked dust may be released into the atmosphere by the blower 6, and the bag filter 7 may be discarded.

Next, the heat storage body cleaning device 16 of the second embodiment will be described. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and their description is omitted.

As shown in Fig. 5, the heat storage body cleaning device 16 of the second embodiment is a portable heat storage body cleaning device 16 which integrates a fan (small blower) 18 and a dust collecting filter 7c. The device is directly disposed on the agitating tube unit 14 without passing through the connecting hose 8. More specifically, for example, a cylindrical dust box 17 is provided, and the cylindrical dust box 17 is provided with a dust collecting chamber 17b having a communication tube 17a communicating with the inside of the tube 9 of the stirring tube unit 14, One end of the cylindrical dust box 17 is provided with a communication tube 17a, and on the other end side, a fan 18 for forming a blower, a blower motor 19 for rotating the fan 18, and an exhaust for connecting the inside and the outside of the dust collecting chamber 17b are provided. Port 17c. In the dust box 17, a bag-shaped dust collecting filter 7c is provided on the side of the communicating pipe 17a from the fan 18.

In the heat storage body cleaning device 16 of the second embodiment, when the switches of the blower motor 19 and the drive motor 13 are turned on, the impeller 11 is rotated by the rotation of the drive motor 13, and the tube 9 of the suction hole 9d is formed. The front end sucks the gas in the heat storage tank 2, and the gas passing through the tube 9 and the dust collecting filter 7c is discharged to the outside from the exhaust port 17c. At this time, the plurality of heat storage bodies 2a are agitated by the rotating impeller 11, and the fins 11c collide with the heat storage bodies 2a and the heat storage bodies 2a and rub against each other, and the dirt such as soot adhered to the heat storage bodies 2a becomes powdery. The dust was peeled off. The dust which has been peeled off from the heat storage body 2a is caught in the bag-like dust collecting filter 7c in accordance with the sucked gas. In this way, the heat storage body 2a is cleaned in the heat storage tank 2.

On the other hand, the gas from which the dust is removed by the dust collecting filter 7c is discharged to the outside from the exhaust port 17c of the dust box 17. In this case, the outside air is also sucked from the communication hole 9c provided on the outer peripheral surface of the holding side of the tube 9, so that the temperature of the sucked high-temperature gas is lowered, and the drive motor 13, the dust collecting filter 7c, and the like are prevented. The fan 18, the blower motor 19, and the like are damaged by the high temperature gas.

In the regenerative cleaning device 16 of the movable type as in the second embodiment, the dust collecting device that is integrated with the fan (small blower) 18 and the dust collecting filter 7c is directly provided in the agitating tube unit 14, and thus The heat storage body cleaning device 16 can be easily moved as a whole to clean the heat storage body 2a of each of the thermal storage burners in the heat storage tank 2. Therefore, there is no need to set a space, and the cost can be reduced.

In the above embodiment, the example in which the impeller 11 is provided at the front end of the agitating tube unit 14 has been described, but the impeller 11 may not necessarily be used. For example, it is possible to impart vibration to the heat storage body 2a and peel off dirt such as soot adhering to the heat storage body 2a in the form of dust. More specifically, as shown in FIG. 6, the motor shaft 13a of the drive motor 13 is provided with a rotary shaft 10 via a flexible joint 20, and at the front end of the rotary shaft 10, a projection 21 protruding from the front end of the tube 9 is provided. .

The protrusion head 21 is a member that can be exchanged with the impeller 11 provided at the front end of the rotating shaft 10 in the first embodiment, and is provided with a coupling portion 11a similar to the impeller 11 and a conical head body formed from the coupling portion 11a toward the tip end. 21a. The head body 21a is provided with a plurality of protrusions 21b on the surface.

On the peripheral surface of the rotary shaft 10, a weight 22 forming an eccentric vibrator is disposed at a position close to the flexible joint 20 in a range of about 1/4 of the entire circumference. Therefore, when the drive motor 13 rotates, the rotary shaft 10 rotates while being eccentrically bent with respect to the motor shaft 13a via the joint portion of the flexible joint 20. By the rotation of the eccentricity, the rotating shaft 10 and the protrusion 21 provided at the front end of the rotating shaft 10 vibrate. Therefore, when the protrusion head 21 is inserted into the heat storage tank 2 and the drive motor 13 is rotated, the heat storage body 2a is agitated by the rotation of the protrusion 21, and vibration is applied to the heat storage body 2a, so that it can be attached to the surface. The dirt such as soot is quickly and further peeled off in the form of dust. Here, the drive motor 13, the flexible joint 20, the rotating shaft 10 provided with the weight 22, and the protrusion head 21 correspond to a vibration imparting device. Further, the rotating shaft 10 provided with the weight 22 and the protruding head 21 can be fixed without being removed.

In the above embodiment, the example in which the communication hole 9c is provided on the outer circumferential surface of the tube 9 has been described. However, the communication hole 9c may not necessarily be provided. Further, although the impeller 11 and the protrusion head 21 are shown as the agitating member 12, if there is a sharp portion, the heat storage body 2a is broken during the agitation, and therefore the corner portion of the impeller 11 or the protrusion 21 is preferably Curved or spherical surface. Further, the shape of the end portion of the agitating member 12 is not limited to the above embodiment, and may be other shapes. It is of course possible to adopt other configurations for the vibration imparting device.

Further, as for the front end of the tube 9, as shown in Fig. 7, the funnel-shaped front end cover 9f may be provided as another member, and the bolt 9i may be inserted from the outer side of the tube 9 to the length of the tube 9. The direction is formed in the sliding slit 9g of the distal end cover 9f and fastened to the screw hole 9h formed in the tube 9, and the distal end cover 9f is slidably attached to the tube 9, so that the impeller 11 or the protruding head can be changed and adjusted. The amount of protrusion of 21. Further, one or more slidable members may be interposed between the tube 9 and the distal end cover 9f, and the amount of expansion and contraction may be increased by sliding of a plurality of stages of two or more stages.

Claims (5)

 A heat storage body cleaning device comprising: a suction device that sucks a gas in the heat storage tank of a regenerative burner having a heat storage tank having a spherical heat storage body; and a pipe connected to the suction device a suction hole having a gas in the heat storage tank; and a stirring member having a rotating shaft that is inserted into the tube and provided with a gap between the inner circumferential surface of the tube, and protruded from the tube at the front end An impeller; and a rotating mechanism that rotates the agitating member.    The regenerator cleaning device of claim 1, wherein the suction device is connected to the dust collecting chamber.    The regenerator cleaning device of claim 1, wherein the suction device and the pipe system are connected by a hose, and the suction device is provided to be movable along a rail.    The thermal storage material cleaning device according to any one of claims 1 to 3, further comprising a vibration applying device that applies vibration to the agitation member.    The regenerator cleaning device according to any one of claims 1 to 4, wherein the tube is provided with a communication hole that communicates the outside of the regenerative burner with the gap.