JP5993890B2 - Combustion device and method for installing combustion device - Google Patents

Description

  The present specification relates to a combustion apparatus and a method for installing the combustion apparatus.

  Patent Document 1 describes either a double-tube installation using a double pipe in which an exhaust pipe is housed inside a supply pipe or a double-pipe installation using a separate exhaust pipe and supply pipe. A selectable combustion device is disclosed.

Japanese Utility Model Publication No. 61-48243

  In the technique of Patent Document 1, when the worker performs the installation work of the combustion apparatus, the lid plate and the gap are determined depending on whether the installation is performed using the double pipe system or the double pipe system. Complicated work such as replacement of the closing member occurs. For example, when switching from the double-pipe method shown in FIG. 1 of Patent Document 1 to the double-pipe method shown in FIG. 2, after removing the cover plate 8, the gap closing member 9, and the supply cylinder 6, the gap closing member 9 is removed. An operation of inserting the cylinder 7 into the opening 5a by the fixture 11 and fixing the supply cylinder 6 to the opening 5b by the fixture 11 is required. Whether the combustion device is installed with a double-pipe method or a combustion device with a double-pipe method, the operator does not need to replace complicated parts, and the operator can easily install a double-pipe method or a double-pipe method. A technology capable of switching and installing the combustion apparatus is expected.

This specification describes either the installation in the double pipe system using a double pipe in which the exhaust pipe is housed in the air supply pipe or the installation in the double pipe system using a separate exhaust pipe and air supply pipe. A selectable combustion device is disclosed. The combustion apparatus includes a supply / exhaust port formed so that the supply passage surrounds the outside of the exhaust passage, and a supply port formed with the supply passage. The air supply / exhaust port is configured to be able to fit both the double pipe used in the double pipe system and the ring cap. The air supply opening is configured to be able to fit both the air supply pipe used in the double pipe system and the cap. The ring cap is formed in a shape that opens the exhaust passage at the air supply / exhaust port and closes the air supply passage, and is configured to be able to fit an exhaust pipe used in a two-pipe system. The cap is formed in a shape that closes the air supply passage at the air supply port. The ring cap includes a donut disk-shaped base, a cylindrical inner downward socket projecting downward from the base, a cylindrical outer downward socket projecting downward from the base, and a cylindrical upward socket projecting upward from the base. It has. When the ring cap is attached to the air supply / exhaust port, the inner downward socket is fitted into the exhaust passage, and the outer downward socket is fitted into the air supply passage. It can be fitted to the upward socket. When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted into the exhaust passage, and the double pipe air supply pipe can be fitted into the air supply passage. It is.

  According to the combustion apparatus described above, the ring cap is attached to the air supply / exhaust port, and the ring cap of the air supply / exhaust port is removed from the state in which the cap is attached to the air supply port. Can be installed. In addition, a ring cap is attached to the air supply / exhaust port and the cap is attached to the air supply port. . The operator only has to remove either the ring cap or the cap at the time of installation work, and does not need to replace complicated parts. It is very easy to install the combustion device.

Said combustion device, the supply and exhaust port, a cylindrical inner adapter forming the exhaust passage, and a cylindrical outer adapter forming the supply passage is attached-rings cap is attached to the sheet discharge port In this state, the inner downward socket is fitted to the inner adapter, the outer downward socket is fitted to the outer adapter, and the exhaust pipe used in the double pipe method can be fitted to the upward socket. When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted to the inner adapter, and the double pipe air supply pipe can be fitted to the outer adapter. It can be configured to be.

The present specification also discloses a method for installing a combustion apparatus. The combustor is equipped with either a double-pipe installation using a double pipe whose exhaust pipe is housed inside a supply pipe, or a double-pipe installation using a separate exhaust pipe and supply pipe. Selectable. The combustion apparatus includes a supply / exhaust port formed so that the supply passage surrounds the outside of the exhaust passage, and a supply port formed with the supply passage. The air supply / exhaust port is configured to be able to fit both the double pipe used in the double pipe system and the ring cap. The air supply opening is configured to be able to fit both the air supply pipe used in the double pipe system and the cap. The ring cap is formed in a shape that opens the exhaust passage at the air supply / exhaust port and closes the air supply passage, and is configured to be able to fit an exhaust pipe used in a two-pipe system. The cap is formed in a shape that closes the air supply passage at the air supply port. The ring cap includes a donut disk-shaped base, a cylindrical inner downward socket projecting downward from the base, a cylindrical outer downward socket projecting downward from the base, and a cylindrical upward socket projecting upward from the base. It has. When the ring cap is attached to the air supply / exhaust port, the inner downward socket is fitted into the exhaust passage, and the outer downward socket is fitted into the air supply passage. It can be fitted to the upward socket. When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted into the exhaust passage, and the double pipe air supply pipe can be fitted into the air supply passage. It is. In that method, a ring cap is attached to the air supply / exhaust port, and a combustion device with a cap attached to the air supply port is prepared. Remove the cap, fit the double pipe to the air supply / exhaust port, and when installing the combustion device with a double pipe system, remove the cap from the air supply port, fit the air supply pipe to the air supply port, Fit the exhaust pipe to the ring cap of the air supply / exhaust port.

  According to the combustion apparatus and the method for installing the combustion apparatus disclosed in this specification, the combustion apparatus can be installed by a double pipe system, or the combustion apparatus can be installed by a double pipe system, without performing any parts replacement work. The combustion device can be installed.

Sectional drawing which shows typically the state which installed the combustion apparatus 2 of the Example by the double pipe system. Sectional drawing which shows typically the state which installed the combustion apparatus 2 of the Example by the double pipe system. The expanded sectional view which shows the structure of the air supply / exhaust port 42 and the air supply port 44 of the combustion apparatus 2 of an Example. The expanded sectional view which shows the structure of the air supply / exhaust port 42 and the air supply port 44 at the time of installing the combustion apparatus 2 of an Example by a double pipe system. The expanded sectional view which shows the structure of the air supply / exhaust port 42 and the air supply port 44 at the time of installing the combustion apparatus 2 of an Example by a double pipe system.

(Example)
As shown in FIGS. 1 and 2, the combustion apparatus 2 of the present embodiment houses a combustion chamber 6 inside a housing 4. A burner 8 is accommodated in the combustion chamber 6. The burner 8 is supplied with fuel gas from a fuel supply pipe (not shown). The burner 8 is disposed so as to release the combustion gas downward. Air inside the housing 4 is supplied to the upper part of the combustion chamber 6 by a fan 10. When the burner 8 burns, the combustion gas flows from the upper part to the lower part of the combustion chamber 6. The lower part of the combustion chamber 6 communicates with the exhaust cylinder 12, and the combustion gas that has reached the lower part of the combustion chamber 6 flows from the lower part to the upper part of the exhaust cylinder 12 and is discharged outside the combustion device 2. Is done.

  The combustion device 2 includes a water pipe 20. The water pipe 20 is disposed so as to pass through the inside of the combustion chamber 6. The portion of the water pipe 20 that passes through the combustion chamber 6 includes a main heat exchange unit 24 and a latent heat exchange unit 26. In the main heat exchange unit 24, sensible heat exchange is performed between the combustion gas flowing outside the water tube 20 and the water flowing inside the water tube 20. In the latent heat exchange section 26, sensible heat exchange and latent heat exchange are performed between the combustion gas flowing outside the water pipe 20 and the water flowing inside the water pipe 20. A drain tube 30 for discharging drain generated in the latent heat exchange section 26 is connected to the lowermost part of the combustion chamber 6. The drain tube 30 is connected to a drain container 32 that stores the drain. Note that a circuit board 14 and the like for controlling the operation of various components of the combustion device 2 are also accommodated in the housing 4.

  As shown in FIG. 1, the combustion apparatus 2 can be installed by a double pipe method in which an exhaust pipe 34 uses a double pipe 35 accommodated inside an air supply pipe 36, and as shown in FIG. 2, It can also be installed in a two-pipe manner using separate exhaust pipe 38 and air supply pipe 40. When the combustion apparatus 2 is installed by the double pipe method shown in FIG. 1, air from the air supply pipe 36 is introduced into the housing 4 through the air supply / exhaust port 42, and exhaust gas from the exhaust cylinder 12 is supplied to the air supply / exhaust port. It is discharged to the exhaust pipe 34 through 42. When the combustion apparatus 2 is installed by the double pipe system shown in FIG. 2, the air from the air supply pipe 40 is introduced into the housing 4 through the air supply port 44, and the exhaust gas from the exhaust cylinder 12 is supplied to the air supply / exhaust port. It is discharged to the exhaust pipe 38 via 42.

  FIG. 3 shows the configuration of the air supply / exhaust port 42 and the air supply port 44 when the combustion device 2 is shipped from the factory. A cylindrical outer adapter 46 surrounding the periphery of the opening formed on the upper surface of the housing 4 and a cylindrical inner adapter 48 connected to the upper end of the exhaust cylinder 12 are attached to the air supply / exhaust port 42. In other words, an exhaust passage is formed in the air supply / exhaust port 42 by the inner adapter 48, and an air supply passage is formed by the outer adapter 46. That is, the air supply / exhaust port 42 is formed so that the air supply passage surrounds the outside of the exhaust passage. A ring-shaped outer seal 50 is attached to the upper end of the outer adapter 46. The outer seal 50 is made of resin. A seat surface 50a is formed on the upper surface of the outer seal 50, and a convex portion 50b is formed on the inner surface of the outer seal. A ring-shaped inner seal 52 is attached to the inner surface of the inner adapter 48. The inner seal 52 is made of resin. A convex portion 52 a is formed on the inner surface of the inner seal 52.

  A detachable ring cap 54 is attached to the air supply / exhaust port 42. The ring cap 54 includes a donut disk-shaped base 54a, a cylindrical inner downward socket 54b projecting downward from the base 54a, a cylindrical outer downward socket 54c projecting downward from the base 54a, and upward from the base 54a. A protruding cylindrical upward socket 54d is provided. A ring-shaped seal 56 is attached to the inner surface of the upward socket 54d. The seal 56 is made of resin. A convex part 56 a is formed on the inner surface of the seal 56. When the ring cap 54 is attached to the air supply / exhaust port 42, the lower surface of the base 54a is in contact with the seat surface 50a of the outer seal 50, and the outer surface of the outer downward socket 54c is in contact with the convex portion 50b of the outer seal 50. The outer downward socket 54 c is fitted to the outer adapter 46, the outer surface of the inner downward socket 54 b is in contact with the convex portion 52 a of the inner seal 52, and the inner downward socket 54 b is fitted to the inner adapter 48. In a state where the ring cap 54 is attached to the air supply / exhaust port 42, the exhaust passage formed by the inner adapter 48 is open, and the air supply passage formed by the outer adapter 46 is closed. In a state where the ring cap 54 is removed from the air supply / exhaust port 42, both the exhaust passage formed by the inner adapter 48 and the air supply passage formed by the outer adapter 46 are open. The ring cap 54 is detachable on site by an operator when the combustion apparatus 2 is installed.

  A cylindrical adapter 58 surrounding the periphery of the opening formed in the housing 4 is attached to the air supply port 44. In other words, an air supply passage is formed in the air supply port 44 by the adapter 58. A ring-shaped seal 60 is attached to the inner surface of the adapter 58. The seal 60 is made of resin. A convex portion 60 a is formed on the inner surface of the seal 60.

  A detachable cap 62 is attached to the air supply port 44. The cap 62 includes a disk-shaped base 62a and a cylindrical downward socket 62b protruding downward from the base 62a. In a state where the cap 62 is attached to the air supply port 44, the lower surface of the base 62a is in contact with the upper end of the adapter 58, the outer surface of the downward socket 62b is in contact with the convex portion 60a of the seal 60, and the downward socket 62b is in the adapter 58. Is fitted. In the state where the cap 62 is attached to the air supply port 44, the air supply passage formed by the adapter 58 is closed. When the cap 62 is removed from the air supply port 44, the air supply passage formed by the adapter 58 is opened. The cap 62 is detachable on site by an operator when the combustion apparatus 2 is installed.

  As shown in FIG. 4, when the combustion apparatus 2 is installed in a double pipe system, the operator removes the ring cap 54 from the air supply / exhaust port 42 and supplies the double pipe 35 including the exhaust pipe 34 and the air supply pipe 36. Fit into the exhaust port 42. In this case, the outer surface of the exhaust pipe 34 is in contact with the convex portion 52a of the inner seal 52, the outer surface of the air supply pipe 36 is in contact with the convex portion 50b of the outer seal 50, and the double pipe 35 is the inner adapter 48 and the outer adapter. 46. As a result, the exhaust pipe 34 communicates with the exhaust cylinder 12, and the air supply pipe 36 communicates with the space inside the housing 4.

  As shown in FIG. 5, when the combustion apparatus 2 is installed by a double pipe system, the operator removes the cap 62 from the air supply port 44 and fits the air supply tube 40 to the air supply port 44. In this case, the outer surface of the air supply pipe 40 comes into contact with the convex portion 60 a of the seal 60, and the air supply pipe 40 is fitted into the adapter 58. As a result, the air supply pipe 40 communicates with the space inside the housing 4. Further, the operator fits the exhaust pipe 38 to the ring cap 54 of the air supply / exhaust port 42 while the ring cap 54 is attached to the air supply / exhaust port 42. In this case, the outer surface of the exhaust pipe 38 comes into contact with the convex portion 56a of the seal 56 of the upward socket 54d, and the exhaust pipe 38 is fitted into the ring cap 54. As a result, the exhaust pipe 38 communicates with the exhaust cylinder 12.

  According to the combustion apparatus 2 of the present embodiment, it is possible to install in a double pipe system by removing the ring cap 54 from the air supply / exhaust port 42 during installation work, and double pipes by removing the cap 62 from the air supply port 44. Installation by the method becomes possible. An operator can install the combustion apparatus 2 in a double-pipe method or a double-pipe method without performing a component replacement operation during the installation operation. The installation work of the combustion apparatus 2 can be performed very easily.

  Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above. In addition, the technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

2 Combustor 4 Housing 6 Combustion chamber 8 Burner 10 Fan 12 Exhaust cylinder 14 Circuit board 20 Water pipe 24 Main heat exchange part 26 Latent heat exchange part 30 Drain tube 32 Drain container 34 Exhaust pipe 35 Double pipe 36 Supply pipe 38 Exhaust pipe 40 Air supply pipe 42 Air supply / exhaust port 44 Air supply port 46 Outer adapter 48 Inner adapter 50 Outer seal 50a Seat surface 50b Convex portion 52 Inner seal 52a Convex portion 54 Ring cap 54a Base 54b Inner downward socket 54c Outer downward socket 54d Upward socket 56 Seal 56a convex part 58 adapter 60 seal 60a convex part 62 cap 62a base 62b downward socket

Claims (3)

Combustion device that can select either double pipe installation using a double pipe with an exhaust pipe housed inside the air supply pipe or double pipe installation using a separate exhaust pipe and air supply pipe Because
An air supply / exhaust port formed so that the air supply passage surrounds the outside of the exhaust passage, and an air supply port formed with the air supply passage,
The air supply / exhaust port is configured to fit both the double pipe used in the double pipe method and the ring cap.
The air supply port is configured to be able to fit both the air supply pipe used in the double pipe system and the cap.
The ring cap is formed in a shape that opens the exhaust passage at the air supply / exhaust port and closes the air supply passage, and is configured to be able to fit an exhaust pipe used in the double pipe system,
The cap is formed in a shape that closes the air supply passage at the air supply port ,
The ring cap includes a donut disk-shaped base, a cylindrical inner downward socket projecting downward from the base, a cylindrical outer downward socket projecting downward from the base, and a cylindrical upward socket projecting upward from the base With
When the ring cap is attached to the air supply / exhaust port, the inner downward socket is fitted into the exhaust passage, and the outer downward socket is fitted into the air supply passage. Can be fitted into an upward socket,
When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted into the exhaust passage, and the double pipe air supply pipe can be fitted into the air supply passage. in it, the combustion device. A cylindrical inner adapter that forms an exhaust passage and a cylindrical outer adapter that forms an air supply passage are attached to the air supply / exhaust port ,
In a state where-ring cap is attached to the sheet outlet, the inner downward socket is fitted to the inside the adapter, the outer downward socket is fitted to the outer adapter, the exhaust pipe to be used in the two pipe systems It can be fitted into the upward socket,
When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted to the inner adapter, and the double pipe air supply pipe can be fitted to the outer adapter. The combustion apparatus of claim 1, wherein A method of installing a combustion device,
For the combustion equipment, select either double pipe installation using a double pipe with the exhaust pipe housed inside the supply pipe or double pipe installation using a separate exhaust pipe and supply pipe Is possible,
The combustion apparatus includes a supply / exhaust port formed so that the supply passage surrounds the outside of the exhaust passage, and a supply port formed with the supply passage,
The air supply / exhaust port is configured to fit both the double pipe used in the double pipe method and the ring cap.
The air supply port is configured to be able to fit both the air supply pipe used in the double pipe system and the cap.
The ring cap is formed in a shape that opens the exhaust passage at the air supply / exhaust port and closes the air supply passage, and is configured to be able to fit an exhaust pipe used in the double pipe system,
The cap is formed in a shape that closes the air supply passage at the air supply port,
The ring cap includes a donut disk-shaped base, a cylindrical inner downward socket projecting downward from the base, a cylindrical outer downward socket projecting downward from the base, and a cylindrical upward socket projecting upward from the base With
When the ring cap is attached to the air supply / exhaust port, the inner downward socket is fitted into the exhaust passage, and the outer downward socket is fitted into the air supply passage. Can be fitted into an upward socket,
When the ring cap is removed from the air supply / exhaust port, the double pipe exhaust pipe used in the double pipe system can be fitted into the exhaust passage, and the double pipe air supply pipe can be fitted into the air supply passage. And
The method is
Prepare a combustion device with a ring cap attached to the air supply / exhaust port and a cap attached to the air supply port,
When installing the combustion device with the double pipe method, remove the ring cap from the air supply / exhaust port, fit the double pipe to the air supply / exhaust port,
When installing the combustion device with a double pipe system, remove the cap from the air supply port, fit the air supply tube to the air supply port, and fit the exhaust tube to the ring cap of the air supply / exhaust port. Installation method.

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