JP2000329336A - Water heater and combined type combustion air and exhaust gas discharging device for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a water heater having a type of discharging combustion products into atmosphere by a method wherein combustion air is sent by an air blower into the combustion chamber of the water heater through a manifold assembly while the combustion products are sucked from the chamber through the assembly to discharge the same into atmosphere. SOLUTION: When a blower is operated, combustion air is sucked into an outlet port assembly through a perforated protective member 24 and is conducted to flow through the outside pipe of an inner pipe. Then, the combustion air is discharged into a manifold assembly 16 and flows to an outlet port through a manifold box unit 30. The air flows from the port into an air assembly box 44 through a pipe 42. The blower 40 sucks the combustion air into the internal passage 15 of a heater 10 to send the same into the combustion chamber of the heater 10. Exhaust gas flows upward into the heater through a pipe 17, then, enters into a pipe 38 from the heater to enter the inlet port of the manifold 16 through the pipe 38. Subsequently, the exhaust gas flows into a pipe through the port and is discharged into atmosphere through an opening 26 at the terminal end of the inner pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater, and more particularly to a water heater that is directly ventilated to the outside through a wall of a space in which the water heater is disposed. An air blower directs combustion air through the manifold assembly,
Place in the combustion chamber of the water heater. The air blower also draws combustion products from the combustion chamber through the manifold assembly and then exhausts them to the atmosphere.

This general type of water heater is shown and described in US Pat. No. 5,020,512. The present invention is considered to be a patentable improvement over this prior art water heater.

[0003]

2. Description of the Related Art A water heater having a combustion air inlet and an exhaust gas outlet includes an air blower attached to the heater. The blower is operable to draw fresh combustion air through a combustion air tube into the combustion chamber of the heater. The exhaust gas pipe is connected to an exhaust gas outlet. The manifold assembly is in communication with the combustion air pipe and the exhaust pipe. The manifold assembly is adapted to receive combustion air and to direct the combustion air into a combustion air tube. The manifold assembly is adapted to receive exhaust gases from an exhaust pipe and discharge the exhaust gases to the atmosphere through the assembly. The combined combustion air inlet and exhaust gas outlet assembly is adapted to receive combustion air from the atmosphere and to deliver the combustion air to the manifold assembly. The combined combustion air inlet and exhaust outlet assembly is further adapted to receive exhaust gases from the manifold and to deliver the exhaust gases to the atmosphere.

[0004]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, FIG. 1 shows a gas water heater 10 provided with a combustion air / exhaust gas piping device 12 as shown in FIGS. 2, 3 and 4. As shown in FIG. ing. As shown in FIG. 1, the internal structure of the water heater 10 includes a watertight tank 11, a gas-fired burner 13 installed in a combustion chamber 19, a passage 15 for feeding combustion air to the burner, and a combustion product. From the top of the water heater.

[0005] As shown in FIG.
It comprises a manifold assembly 16 and a combined combustion air inlet and exhaust gas outlet assembly 14.

The assembly 14 comprises an outer tube member 18 and an inner tube member 20 mounted concentrically within the outer tube member 18. The inner tube 20 extends through a wall 22 of the space in which the heater is located.

[0007] A perforated protective member 24 is attached to the end of the tube 20 outside the wall 22. The connecting tool 25 is a pipe 20
Is attached to the end. The connection tool 25 has a side opening 26 and an end cap 28.

Referring to FIGS. 2, 3 and 4, the manifold assembly 16 is mounted adjacent the inner surface of the wall 22.
Mounted on the right end of the

The manifold assembly 16 comprises a manifold box portion 30 and an exhaust port 32 mounted within the box portion 30 and extending through the box as shown in FIG. The combustion air port 34 is mounted on the face of the box 30 and communicates with the interior of the box 30 as shown in FIG. The assembly 16 has a collar 36 on the box 30 that fits within the left end of the tube 18 as shown in FIG.

As shown in FIGS. 1 and 2, a combustion air tube 42 is connected at one end to the combustion air port 34 of the manifold assembly 16 and mounted at the other end to the top of the heater 10. It is connected to the air assembly box 44. The exhaust pipe 38 is connected to the manifold assembly 1 at one end.
6 is connected to a blower 40 attached to one end of an air assembly box 43 at the other end. The internal baffle 45 directs the combustion air through the pipe 42.
From the inside to the passage 15. Warp plate 45
Performs a further function of directing the exhaust gas from the exhaust gas pipe 17 to the pipe 38.

When the blower 40 (FIG. 1) is activated, fresh combustion air is drawn into the combustion air inlet and exhaust gas outlet assemblies 14 through the perforated protective member 24. The combustion air flows through tube 18 around the outside of tube 20, as indicated by the arrows in FIG. Fresh combustion air is discharged into the manifold assembly 16 as shown in FIG. The combustion air flows through manifold box section 30 to outlet port 34.

From port 34, air flows through tube 42 to air assembly box 44 (FIG. 1). Box 4
4 has an internal baffle 45 for directing the flow of combustion air into the passage 15 of the water heater. The blower 40 draws combustion air into the interior passage 15 of the heater 10, which directs its flow into the combustion chamber of the heater 10.

The products of combustion, ie the exhaust gas, are passed through a pipe 17
1 through the air assembly box 43 and then out of the heater and into the tube 38, as indicated by the arrow in FIG. Exhaust gas enters the inlet port 32 of the manifold 16 through the pipe 38. Next, the exhaust gas flows through the port 32 into the tube 20 (FIG. 2),
It passes through the tube 20 and through the opening 26 at the end of the tube 20 to the outside atmosphere (FIG. 2).

While the present invention has been shown and described at what is presently considered to be the best mode of implementation, those skilled in the art will recognize that the scope of the invention is not limited except as by the appended claims. It will be understood that many variations are possible within.

[Brief description of the drawings]

FIG. 1 is a partial schematic vertical side view of a water heater provided with an exhaust gas piping device for combustion air and combustion products of the present invention.

FIG. 2 is a cross-sectional view of a flue gas piping device for combustion air and combustion products.

FIG. 3 is a plan view of a manifold assembly used in the apparatus shown in FIG.

FIG. 4 is a left end view of the manifold assembly shown in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Water heater 11 Watertight tank 12 Piping device 13 Gas cooking burner 14 Assembly of combustion air inlet and exhaust gas outlet 15 Passage 16 Manifold assembly 17 Exhaust gas pipe 18 Outer pipe member 20 Inner pipe member 22 Wall 24 Protective member 25 Connector 26 Side Opening 28 End cap 30 Manifold box 32 Exhaust gas port 34 Combustion air port 36 Combustion air inlet collar 38 Exhaust gas pipe 40 Air blower 42 Combustion air pipe 44 Air assembly box 45 Internal baffle

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[Procedure amendment]

[Submission date] June 26, 2000 (2006.2.
6)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

 ──────────────────────────────────────────────────続 き Continued on front page (71) Applicant 595083361 By-Pass Road, Ashland City, Tennessee 37015, United States of America (72) Inventor Otto Vago, 37029, Tennessee, United States 37029, Abbey Road, 1965

Claims (10)

[Claims] 1. A water heater having a combustion chamber (19), a combustion air inlet and an exhaust gas outlet, wherein the combustion air inlet and the exhaust gas outlet are disposed on top of the water heater. ) Box part (30) and exhaust gas port (32)
A manifold assembly (16) having a combustion air port (34) and a combustion air inlet collar (36), wherein the combustion air inlet collar (36) extends through the interior of the box portion (30). Combustion air port (3
(B) communicating with the manifold assembly (16), (b) a combustion air inlet pipe member (18), and the pipe member (1).
8) The exhaust gas outlet pipe member (2) concentrically mounted inside
0), wherein the tube member (18) has at one end the combustion air inlet collar (36) with respect to the box portion (30). And the pipe member (18)
Is connected to the atmosphere at the other end, the pipe member (20) is connected to the exhaust gas inlet port (32) at one end, and is connected to the atmosphere at the other end, and the combined combustion air inlet and exhaust gas outlet are connected to the atmosphere. An assembly (14); (c) a combustion air assembly box (44) mounted on top of the water heater; and (d) connected at one end to the combustion air port (34) and at the other end. The combustion air assembly box (44)
(E) an exhaust gas pipe (3) connected at one end to an exhaust gas outlet of a water heater and connected at another end to the exhaust gas port (32).
8) and (f) operable to draw combustion air into the water heater through the combustion air pipe (42) and further operable to suction exhaust gas from the water heater through the exhaust gas outlet pipe (38). A water heater comprising an air blower (40). 2. A combined combustion air and exhaust gas exhaust device for a water heater, comprising: (a) a box portion (30) and an exhaust gas port (32).
A combustion air port (34) and a combustion air inlet (36).
A manifold assembly (16) having the combustion air inlet collar (36) and the box portion (3).
0) the manifold assembly (16) communicating with the combustion air port (34) through the interior of (0); (b) a combustion air inlet tube member (18);
8) The exhaust gas outlet pipe member (2) concentrically mounted inside
0), wherein the tube member (18) is connected at one end to the box portion (30), wherein the tube member (18) is The combined combustion air inlet and exhaust gas outlet assembly communicating with the atmosphere at the other end, the pipe member (20) being connected at one end to the exhaust gas port (32), and communicating with the atmosphere at the other end. (C) a combustion air assembly box (44) mounted on top of a water heater; and (d) connected to the combustion air port (34) at one end and the air at another end. (E) an exhaust gas pipe (42) connected to the exhaust box of the water heater at one end and connected to the exhaust gas port (32) at the other end. 3
8) and (f) operable to draw combustion air into the water heater through the combustion air pipe (42) and further operable to suction exhaust gas from the water heater through the exhaust gas outlet pipe (38). A combined combustion air and exhaust gas exhaust device for a water heater, comprising an air blower. 3. Combined combustion air and exhaust gas discharge device for a water heater according to claim 1, wherein the combustion air is drawn into the combustion chamber of the water heater by operation of the air blower (40). Combined combustion air and exhaust gas exhaust for a water heater, wherein an air assembly box (44) is present. 4. A water heater having a combustion chamber, a combustion air inlet and an exhaust gas outlet, wherein the combustion air inlet and the exhaust gas outlet are arranged at the top of the water heater. 30) and exhaust gas port (32)
A combustion air port (34) and a combustion air inlet (36).
A manifold assembly (16) having the combustion air inlet (36) communicating with the combustion air port (34) through the interior of the box portion (30); (B) The combustion air inlet pipe member (18) and the pipe member (1)
8) Exhaust gas outlet pipe member (2)
0), wherein the tube member (18) is connected at one end to the box portion (30), wherein the tube member (18) is The combination type combustion air inlet and exhaust gas outlet set communicating with the atmosphere at the other end, the pipe member (20) being connected at one end to the exhaust gas inlet port (32), and communicating with the atmosphere at the other end. A solid (14), (c) a combustion air assembly box (44) mounted on top of a water heater, and (d) connected at one end to the combustion air port (34) and at the other end. A combustion air pipe (42) connected to the air assembly box (44); and (e) an exhaust gas pipe connected to the exhaust gas outlet of the water heater at one end and connected to the exhaust gas port (32) at the other end. (3
8) and (f) operable to draw combustion air into the water heater through the combustion air pipe (42) and further operable to suction exhaust gas from the water heater through the exhaust gas outlet pipe (38). A water heater comprising an air blower. 5. A water heater having a combustion chamber, a combustion air inlet, and an exhaust gas outlet, comprising: (a) an air blower mounted on the water heater.
And (b) a combustion air pipe (4) connected to the air blower (40).
2) wherein the air blower (40) is operable to draw fresh combustion air through the pipe (42) and introduce it into the combustion air of the water heater; (C) an exhaust gas pipe (3) connected to the exhaust gas outlet of the water heater;
And (d) the exhaust gas pipe (38) and the combustion air pipe (4).
A manifold assembly (16) communicating with the combustion air pipe (4) for communicating with the combustion air;
2) said manifold assembly (16) adapted to be able to send exhaust gas from said exhaust gas pipe (38) to said exhaust gas pipe (38); and (e) receiving combustion air from the atmosphere and removing said combustion air from said manifold. Combined combustion air inlet and exhaust outlet assembly (14) adapted to be sent to an assembly (16)
And a combination combustion air inlet and exhaust outlet assembly (14) adapted to receive exhaust gas from said manifold assembly (16) and to direct said exhaust gas to atmosphere. Water heater. 6. The water heater according to claim 3, wherein the combined combustion air inlet and exhaust gas outlet assembly (14) is concentric with the combustion air inlet pipe member (18). An exhaust gas outlet pipe member (20) attached to the manifold, wherein the pipe member (18) is capable of sending air to the manifold assembly (16), and the pipe member (20) transmits exhaust gas to the manifold assembly (16). A water heater adapted to be delivered to the atmosphere from the manifold assembly (16). 7. A water heater according to claim 5, wherein said manifold assembly (16) is adapted to allow combustion air to flow from said combined combustion air inlet and exhaust gas outlet assembly (14) to said combustion air pipe (42). A water heater, comprising a box portion (30) passing through. 8. A watertight tank (11), a combustion chamber (19) and a gas burner (13) in the combustion chamber.
An exhaust gas outlet pipe (17) connected to the combustion chamber (19), a blower (40), and a combustion air port (3).
4) a manifold assembly (16) having an exhaust gas port (32) and a combustion air pipe (42) connected at one end to the combustion air port (34) and communicating at the other end with the combustion chamber (19). A method for heating water in a water heater, comprising an exhaust gas pipe (38) connected at one end to an exhaust gas port (32) and at the other end to communicate with an exhaust gas outlet pipe (17) of the water heater; a) Activate the blower (40) to draw combustion air into the manifold assembly (16), and then draw combustion air from the manifold assembly (16) through the combustion air pipe (42) to the water heater combustion. Suctioning into the chamber (19); (b) mixing the combustion air with the gas generated by the gas burner (13) and burning the mixture in the combustion chamber (19) to generate heat; (C) Actuates A (40), the exhaust gas was placed in suction and exhaust gas pipe from the water heater (38), and a step of exhaust gas pipe to carry the exhaust gas to the manifold assembly (16), the method. 9. The method of claim 8, wherein the combustion air exits the manifold assembly (16) and the combustion air port (3) in the manifold assembly (16).
4) flowing through the combustion air tube (42) through the method. 10. The method of claim 9, wherein the exhaust gases flowing from the exhaust pipe (38) to the manifold assembly (16) flow through the exhaust ports (32) of the manifold assembly (16).