JPS6146843A - Method of heating water heater and water - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

BACKGROUND OF THE INVENTION TECHNICAL FIELD OF THE INVENTION The present invention relates to water heaters and methods for heating water. In particular, the present invention allows combustion products to pass from the water heater through the outer wall.
direct flow out of the space in which the water heater is installed, and combustion air flows from outside the space in which the water heater is installed directly into the combustion violet of the water heater through a closed passage; Concerning a flowing type gas (or oil) fired water heater.

DESCRIPTION OF THE PRIOR ART The water heater according to the present invention improves efficiency by utilizing combustion air drawn directly from the outside and preheating the combustion air. Additionally, to direct the flow of combustion air around the outer surface of the inner jacket and the inner surface of the outer jacket, the pilot outage (Dll-t
outage) is significantly reduced. Also, said combustion air space surrounding the tank wall provides an additional means of insulation for the water in the tank, further reducing heat losses, to the applicant's knowledge, in any prior art water heater. However, the above-mentioned advantages are not found.

SUMMARY OF THE INVENTION The present invention relates to a water tank including a watertight tank arrangement having a tank wall and top and bottom members welded to the tank wall. A combustion chamber is located below the bottom head member, and a burner arrangement is provided within the combustion chamber, with a furnace tube extending upwardly within the tank arrangement for directing the combustion products from the combustion chamber to the vent pipe. A combustion product vent pipe is provided for conducting the combustion products directly out of the furnace tube through the outer wall of the space in which the water heater is installed. A combustion air transmission device is provided for directing the combustion air from outside through the outer wall of the space in which the water heater is installed. The transmission device includes a first air passage space formed between a first jacket member that separates and surrounds a tank wall and a second jacket member that separates and surrounds the first jacket member. The first and second jacket members are arranged concentrically, and the space therebetween constitutes the first air passage space, through which the cod frying air flows downward to the combustion chamber.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A water heater in accordance with the present invention includes a liquid-tight tank 10 comprising a tank wall 12, a top head member 14 and a bottom head member 16 which are bathed in nuclide. Tank 10 further includes a furnace barrel 18 which is in bath contact with bottom head member 16, extends upwardly through opening 2o in top head member 14, and is welded to said head member 14.

The tank has a skirt member 22 secured to the bottom of the tank wall 12. The function of the hexagonal opening, in which a plurality of openings 24 are spaced apart from each other around the lower portion of the skirt, will be described in detail later. The skirt member 22
is an extension of the tank wall 12.

A first jacket member 26 is located around the tank wall 12 and is spaced from the wall.

Top and bottom members 28 and 60 are secured to the jacket member. The first jacket member 26 has a plurality of spaced apertures 68 around its lower portion, the function of which will be described in more detail below.

The second jacket member 62 is the first jacket member 26
It is separated from and surrounded by it. The space between the wall 12 and the first jacket member 26 above the opening 68 and the tank top 14 and the jacket top 2 are secured to the second jacket member 62 with top and bottom members 64°36.
The space between 8 and 8 is filled with a suitable insulating material 40.

The space between the first jacket member 26 and the second jacket member 32 below the opening 38 is filled with a suitable insulating material 42.

The water heater assembly described above is mounted on a base assembly 44, the interior of which is filled with suitable insulation 46. A combustion chamber 48 is located below the bottom head 16 and a gas (or oil) fired burner 50 of suitable construction is provided within the combustion chamber.

The water heater tank 10 has an inlet fitting 52) an outlet fitting 54
and a discharge fitting 56 are provided. A specially designed circular, non-metallic diaphragm member 5B, 60.62 is attached to said fitting 52.54.

It is attached around 56.

As best seen in FIGS. 1 and 4, a top member 64 of the jacket is connected to a combustion air inlet assembly 66.

The diaphragm members 58, 60, 62 are of identical construction and each include a grooved upper 7 flange 68, a conical body 7D, and a sealing tip 72.

An end 72 of the diaphragm member 62 is sealingly attached to the fitting 56 and a flange 68 is seated on the open lower portion 4 of the second jacket member 62. End 7 of diaphragm member 58
2 is sealingly attached to the fixture 52, and the flange 68 is seated in the opening of the top member 64. The end 72 of the diaphragm 60 is sealingly attached to the fitting 54 and the 7 langes 68 are seated in the open lower portion 8 of the top member 34.

2) With reference to FIGS. 3 and 4, the outlet assembly 64 includes a curved tubular portion 1o6 and a straight tubular portion 108.
Between one end of the part 106 consisting of and the furnace cylinder 18,
and the fittings between the other end of said section 106 and said section 1 (J8) are identical. A high temperature gasket material 114 is located between the flared portions 110, 112, which are comprised of mating and inwardly flared members 112.

The ventilation camp assembly 84 (see FIG. 2) includes an exhaust pipe 86.
, an air deflection device 88 fixed to the end of the limb tube 86 , and an air intake grate 90 attached to the outside of the tube 86 . A large number of holes 9 are provided at the end of the exhaust pipe 86.
Another screen member 116 with 2 is attached. The walls 96 of the grid member 90 are perforated as indicated by reference numeral 94. FIG. 2 shows only a representative portion of the holes 92,94.6 A groove 109 is provided at one end of the straight tube section 108 in which a sealing member 111 in the form of an O-ring is seated. The straight portion 108 is telescopically inserted into the exhaust pipe 86, and the O-ring 111 seals the connection therebetween.

The combustion air inlet assembly 66 consists of a curved tube section 118, a first straight tube section 120, and a second straight tube section 122. Curved portion 118 is connected to top member 34 at one end. Straight section 120 has an inwardly convergent end 124 that is pressed into the end of curved section 118. Straight part 12
A groove 126 is provided at the end of 2 in which a sealing synthetic material 128 is held. A straight section 122 extends through the opening 80 in the wall 82 and is telescopically connected to the section 1.
20 and a sealing synthetic material 128 seals the connection between the two parts. The straight section 122 is provided with seven flange 160 for securing the straight section 122 to the outside of the wall 82 by suitable fittings (not shown).

From the foregoing description of outlet assembly 64, combustion air inlet assembly 66, and exhaust camp assembly 84, it can be seen that wall 82
The horizontal spacing of the water heater relative to the ventilation member 108.
The telescoping relationship between 86 and combustion air members 120, 122 allows for some ease of adjustment. The aforementioned structure facilitates the installation of the water heater.

Figures 5 and 3 show an inlet door assembly for a water heater. As shown in FIG. 5, the water heater combustion chamber 48 is provided with a removable inlet door assembly 164 comprising corresponding door members 136,138. The insulation element 140 fits closely behind the door elements 136, 138 in the assembled position.

Door members 136, 138 are provided with outwardly extending flange portions 142,144. Gasket part 14
6.148 is the door member 136, 138 and the flange part 14
2,144. The gasket portions 146, 148 are provided with grooves 150, 152 to permit alignment of the door member around the gas piping 154, 156. )It is connected to the. Door member 1ro 6
A monitoring window 158 is provided.

FIG. 3 shows the entrance door assembly 164 in the erected position of the thread 14. As shown, the attachment part 16U is removably secured to the jacket filter 2, and the flange portion 142 of the door .144 are secured together by fittings 162, the red assembly, when assembled as shown in FIG. 3, effectively seals the combustion chamber 48 from the space in which the water heater is located.

In operation, combustion air from outside the building in which the water heater is installed is drawn in through the holes 94 in the grate member 90. The combustion air flows through a space 98 between the concentrically disposed exhaust outlet assembly 64 and the combustion air inlet assembly 66. From there, combustion air flows radially across the top of the water heater via the space 100 between the jacket top members 28.34 and the diaphragm members 58. 1 prevents air leakage at the inlet fitting 52 and the outlet fitting 52.

Combustion air is supplied to first and second jacket members 2 in a concentric arrangement.
6. Continues to flow downward through the space 1[)2 between 32. The diaphragm member 62 prevents air leakage in the exhaust fitting 56.

From space 102, combustion air is directed to first jacket member 26.
through the opening 68 into the space 104A between the first jacket member 26 and the skirt member 22. space 10
From 4, combustion air flows 17 through openings 24 in skirt 22 to combustion chamber 48.

Skirt 22, along with jacket members 26, 32, seal combustion chamber 48 from direct air entry from sources other than vent cap assembly 84. The aforementioned flow of combustion air is indicated by solid arrows in FIG.

Combustion air flowing into the combustion chamber 48 sustains combustion in the burner 50; combustion products from the burner 50 are combusted,
From there, it flows upward into the furnace tube 18. The combustion products flow upwardly through the furnace tube 18' and then into the exhaust '1 assembly 64'.
and then exits through holes 92 into the atmosphere. The aforementioned combustion product flow 1lSi is shown in Figure 1 by dotted arrows.

The structure and operation of the water heater described above offers a number of advantages: (1) it takes in combustion air from outside the building, so it does not affect the temperature conditions of the space in which the water heater is installed; That is, no warm empty packets are removed from the space during the heating period, and no depleted air is removed from the space during the cooling period.

Outer surface of outlet assembly 64 and first jacket member 2
The combustion air flowing through 6 out of 1 is preheated, thus increasing efficiency. Conversely, the combustion products flowing through the outlet assembly 64 are cooled, allowing them to be exhausted directly to the outside without the need for a conventional chimney.

Finally, the flow of combustion air is directed to the first 'jacket member 26'.
This arrangement significantly reduces pilot outage problems due to excessive ventilation. Additionally, the aforementioned combustion air space 102 surrounding the jacket 26 provides additional insulation to the water within the tank 10, reducing collateral heat losses.

[Brief explanation of the drawing]

1 is a side view of a water heater constructed in accordance with the present invention; FIG. 2 is an enlarged partial view of the vent cap assembly; FIG. 3 is a cross-sectional view taken along line 6--6 of FIG. 1; 4 is a detailed view of the vent pipe and combustion air inlet pipe assembly, FIG. 5 is an exploded perspective view of the water heater inlet door assembly, and FIG. 3 is a perspective view of the inlet door assembly in the assembled position. Symbols in the figure: 10: Tank 12: Tank wall 14, 16: Head member 18: Furnace tube 2 [1: Opening 22 Varnish force member
28.3n: In member and bottom member 26, filter 2: Jacket member 48: Combustion chamber 5D: Burner 52.54.5
6: Spraying tool 58, 60, 62: Diaphragm 64: Discharge port assembly 66: Combustion air inlet assembly 84: Exhaust cap assembly 84: Discharge pipe 90 = Grid member 92: Hole 164 Two-port sinus assembly (outer 5 given name)

Claims (16)

[Claims] (1) Watertight tank means including a tank wall and a top head member and a bottom head member welded to the wall; a combustion chamber located below the bottom head member; and burner means provided in the combustion chamber. and; furnace tube means extending upwardly through the watertight tank arrangement to direct combustion products from the combustion chamber upwardly through the top head member; A water heater comprising a combustion product exhaust means for guiding combustion products directly from the furnace tube means to the outside; and a combustion air transmission means for directly guiding combustion air to the combustion chamber through the outer wall of a space in which the water heater is installed. The combustion air transmission means includes a first jacket member provided around the tank wall and spaced apart from the tank wall;
and a second jacket member spaced apart from the jacket member, the first and second jacket members being concentrically arranged with respect to each other;
A water heater in which the space between these jacket members constitutes the first air passage space. (2) In the water heater according to claim 1,
A water heater having a heat insulating material in a space between the tank wall and the first jacket member. (3) In the water heater according to claim 1,
The combustion product exhaust means includes an outlet assembly connected to an upper end of the furnace tube means and extending into an opening in the outer wall. (4) In the water heater according to claim 3,
The combustion air transmission means includes a combustion air inlet assembly disposed concentrically around the outlet assembly to define a second air passageway space through which combustion air flows. (5) In the water heater according to claim 4,
an exhaust cap assembly in communication with both the combustion products exhaust means and the combustion air transmission means, the gas exhaust pipe having one end telescopically connected to the outlet assembly and the other end communicating with the atmosphere; A water heater provided with an exhaust cap assembly including: (6) In the water heater according to claim 5,
The water heater, wherein the exhaust cap assembly further includes a perforated grate member mounted on the outside of the gas exhaust pipe, through which combustion air flows into the combustion air inlet assembly from the outside. (7) In the water heater according to claim 5,
A water heater in which the combustion air inlet assembly includes a pair of tubular members telescopically connected to each other. (8) In the water heater according to claim 1,
The water heater, wherein the first jacket member has a plurality of openings, through which combustion air flows from the first air passage space into the combustion chamber. (9) In the water heater according to claim 8,
Attached below the tank wall is a skirt member spaced inwardly from the first jacket member, the skirt member having a plurality of spaced apertures therethrough, through which combustion occurs. A water heater in which air flows into the combustion chamber. (10) In the water heater according to claim 4, top members are fixed to the tops of the first and second jacket members at a distance from each other, and the combustion air inlet assembly is fixed to the top of the first and second jacket members. The water heater communicates with the space between the top members, and the space between the top members constitutes a third air passage space through which combustion air flows. (11) In the water heater according to claim 1, an inlet opening to the combustion chamber is provided, an inlet door means is removably provided on the opening, and the inlet door means: A water heater including a sealing member sealingly attaching the inlet door means to the second jacket member when the inlet door means is mounted over the opening. (12) watertight tank means comprising a tank wall and a top head member and a bottom head member welded to the wall, and having an inlet fitting and an outlet fitting welded to the top head member; a combustion chamber located below the combustion chamber; burner means disposed in the combustion chamber; furnace tube means extending upwardly through the watertight tank means for directing combustion products upwardly from the combustion chamber through the top head member; ; Combustion product exhaust means for directly guiding combustion products from the furnace cylinder means to the outside through an outer wall of the space in which the water heater is installed; Directly guiding combustion air to the combustion chamber through the outer wall. a combustion air transmission means, a first jacket member spaced from and surrounding the tank wall; and a second jacket member spaced from and surrounding the first jacket member. a first air passage space between the first and second jacket members, the first and second jacket members being concentrically arranged such that the space therebetween defines the first air passage space; Said first and second
a second air passage space formed by a pair of top members fixed to the top of the jacket member, the space between the top members forming the second air passage space through which combustion air flows. A water heater comprising: a combustion air transmission means; and a pair of diaphragm members mounted about the inlet fitting and the outlet fitting to prevent leakage of combustion air from the second air passageway space. (13) A water heater according to claim 12, wherein the combustion product exhaust means includes an outlet assembly connected to an upper end of the furnace tube means and extending into an opening in the outer wall. (14) In the water heater according to claim 13, the combustion air transmission means is arranged concentrically around the outside of the discharge pipe to form a second air passage space through which combustion air flows. Water heater including combustion air inlet assembly. (15) A method of heating water in a watertight tank having a tank wall and a top head member and a bottom head member welded to the wall, including: [1] in a combustion chamber located below the bottom head of the watertight tank; applying heat to the water in the tank from the burner; [2] directing the combustion air to the tank wall through a first flow passage space formed by a pair of jacket members disposed concentrically around the outside of the tank wall; [3] Directly guide the combustion products from the burner to the outside of the space where the water heater is installed by directing it from outside the space where the water heater is installed to the combustion chamber; A method of heating water including the process. (16) In the method according to claim 15, the combustion products flow out from the top of the water heater via the outlet assembly, and the combustion products flow out from the top of the water heater through the outlet assembly, and the combustion products flow into the first flow passage space described in the step [2] above. Combustion air flowing to the outlet assembly causes water to flow through a second flow passage space formed between the outer surface of the outlet assembly and a combustion air inlet assembly disposed concentrically around the outlet assembly. How to heat.