CN201111618Y - Cast iron water heating furnace - Google Patents

Abstract

The utility model discloses a cast-iron hot water stove, which comprises a stove shell and a stove liner that are sheathed with each other, two ends of the stove shell and the stove liner are sealed to form a stove body with a double-wall water sleeve barrel, an upper end of the stove body is provided with a smoke outlet and a flue, distributed water pipes are communicated between the stove liner walls, and the cast-iron hot water stove is characterized in that the stove shell and the stove liner of the stove body have a rectangular cross section, the stove shell, the stove liner and the water pipes are cast-iron, the cast-iron stove liner and the communicated cast-iron water pipes are cast into a whole, the lateral wall of the cast-iron stove shell that is opposite to a port of the cast-iron water pipes and the stove body are separated into two bodies, which clamp a gland bush with the periphery of the stove body, and the gland bush is connected by a bolt. The cast-iron hot water stove formed by the structure leads the lateral wall of the cast-iron stove shell that is opposite to the port of the cast-iron water pipes and the stove body to be separated into two bodies, thus being convenient for the stove liner, the water pipes and part of the stove shell to be cast as a whole, and having simpler casting structure, larger heating area and lower production cost.

Description

Cast iron water heating furnace

Technical field:

The cast iron furnace is the boiler body that mainly is made of cast iron member, and boiler body is based on water mantle and the vertical type water heater boiler of the water pipe of connection is arranged.

Background technology:

Existing hot-water boiler has shell and the flue that is nested, and shell and flue lower end or closed at both ends have constituted the boiler body of double wall water mantle, and the boiler body upper end has outlet flue and chimney, can also be communicated with the water pipe of distribution between the furnace wall.Such vertical boiler with horizontal water tubes is all with steel plate compression moulding and through being welded, and the cost cost is than higher, corrosion-resistant, and service life is shorter; Heating surface area is fewer, and thermal efficiency ratio is lower.The burning publication number is the vertical cast iron boiler of the application for a patent for invention prospectus record of CN1083915A, all is to be made of the pot sheet stack of arranging.Each pot sheet contains main combustion chamber, fuel gas return-flow road and water jacket, water pipe, and structure is very complicated, manufacture craft more complicated, cost cost height.Pot sheet each position diversity ratio of being heated is bigger, and the condition of the connection sealing of requirement is than higher; Connection seal between the pot sheet is wanted directly to contact with flue gas with flame, is subjected to the damage of flame and flue gas easily.

Summary of the invention:

The present invention solves in the prior art cost cost exactly than higher, corrosion-resistant, and the problem that service life is short provides a kind of cost cost lower, and corrosion resistance is strong, the cast iron furnace that service life is long.

In order to address the above problem, cast iron furnace of the present invention has shell and the flue that is nested, shell and flue closed at both ends have constituted the boiler body of double wall water mantle, the boiler body upper end has outlet flue and chimney, be communicated with the water pipe of distribution between the furnace wall, it is characterized in that: the shell of boiler body and flue are rectangular cross section, shell and flue and water pipe are cast iron, cast iron furnace chamber is cast as one with the cast iron water pipe that is communicated with, casting iron pan shell side wall and the boiler body relative with the cast iron water pipe port are divided into two bodies, and with boiler body around between accompany sealing gasket and be connected by bolt.The cast-iron boiler of Xing Chenging like this, casting iron pan shell side wall and the boiler body relative with the cast iron water pipe port are divided into two bodies, are convenient to flue and can monoblock cast become with water pipe and part shell, and cast structure is fairly simple, but heating surface area is bigger, makes that the cost cost is lower.Also can four sidewalls of cast iron shell all with the boiler body split, and respectively with boiler body around between accompany sealing gasket and be connected the recomposition one by bolt.Be more convenient for casting machine-shaping and assembling like this, and guarantee to be heated flue and water pipe be for whole, heating surface be whole, has avoided demanding sealing, has avoided joint face, sealing place and pad perishable, damage.Shell and flue closed at both ends have constituted the double wall water jacket of four sides, also can become the double wall water jacket between the shell top of boiler body upper end and flue top.The boiler body upper end has outlet flue and pushes up for the boiler that has water jacket above the chimney like this.The two ends of double wall water jacket can rely on casting iron pan shell side wall upper end to connect sealing between shell top and the flue top, and promptly casting iron pan shell side wall upper end accompanies sealing gasket with the two ends of double wall water jacket between shell top and flue push up and is connected by bolt.Between boiler top and shell top and the flue top double wall water jacket also can with the boiler body split, and with boiler body between accompany sealing gasket and be connected by bolt.Moreover the shell on boiler top top is divided into two bodies with boiler body, around shell top and the boiler body and outlet flue accompany sealing gasket on every side and be connected by bolt.Above-mentioned further effect can both make that cast structure is simpler, and guarantees that bigger heating surface area is arranged, and makes that the cost cost is lower.

Description of drawings:

Accompanying drawing has been represented the structural representation of cast-iron boiler of the present invention, wherein Fig. 1 is a kind of front section view of two joint cast-iron boilers, Fig. 2 is this two joint cast-iron boiler body left side cutaway views, Fig. 3 is this two joint cast-iron boiler body A-A partial sectional views, and Fig. 4 is this two joint cast-iron boiler body connecting pipe amplification views.Example below in conjunction with accompanying drawing further specifies.

Specific embodiment: this cast-iron boiler of the present invention, still have the sealing of shell and flue to constitute the boiler body of double wall water jacket, mainly be to form wall-sandwiched layer in the side, constitute the water jacket in the boiler body, the boiler body upper end has outlet flue and chimney, the boiler body bottom has fire bars and the side has stove gate and fire door, and perhaps the boiler body bottom is provided with burner or is provided with cooking stove, is communicated with the water pipe of distribution between the furnace wall.Boiler body of the present invention is a cast iron, makes the flue globality again, is convenient in the stove combustion gas and does not leak or few the leakage, does not burn out attaching parts and seal member, and cast iron furnace chamber is a rectangular cylinder.The cast iron furnace chamber of rectangle tubular can be that two ends are uncovered tube, and upper end uncovered is stamped furnace roof or is connected with the chimney that closes up; Also can be for the lower end is uncovered tube, the upper end is the flue top.Cast iron furnace chamber is cast as one with the cast iron water pipe that is communicated with, and has not only increased heating surface (area) (HS, and has kept the heated object in the burner hearth to become integral body.The shell part face that cast iron furnace chamber is outer or whole face and boiler body are divided into two bodies, between around the shell face that is divided into two bodies and the boiler body and accompany sealing gasket around outlet flue or the stove gate and be connected by bolt, be double wall between cast iron furnace chamber and the shell face, as the part of water jacket.Connecting portion and sealing position are set outside flue like this, have guaranteed that connecting portion particularly seals the position and is difficult for burning out, and be convenient to the parts casting of cast-iron boiler, reduce production costs.

Claims (2)

1, a kind of cast iron furnace, the shell and the flue that are nested are arranged, shell and flue sealing have constituted the boiler body of double wall water mantle, the boiler body upper end has outlet flue and chimney, the boiler body bottom has fire bars and the side has fire door, perhaps the boiler body bottom is provided with burner or is provided with cooking stove, be communicated with the water pipe of distribution between the furnace wall, it is characterized in that: the shell of boiler body and flue are rectangular cross section, shell and flue and water pipe are cast iron, cast iron furnace chamber is cast as one with the cast iron water pipe that is communicated with, casting iron pan shell side wall and the boiler body relative with the cast iron water pipe port are divided into two bodies, and with boiler body around between accompany sealing gasket and be connected by bolt.

2, as the said cast iron furnace of claim 1, it is characterized in that: four sidewalls of cast iron shell accompany sealing gasket with boiler body all around and are connected by bolt.

Images