CN101392951A

CN101392951A - Cast iron boiler

Info

Publication number: CN101392951A
Application number: CNA2007100128895A
Authority: CN
Inventors: 丁政明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-17
Filing date: 2007-09-17
Publication date: 2009-03-25

Abstract

The invention relates to a cast iron boiler. A boiler shell and a boiler liner are closed to form a boiler body of a jacketed water chamber; the upper end of the boiler body is provided with a smoke outlet and a chimney; the lower part of the boiler body is provided with a boiler grate; the side of the boiler body is provided with a boiler doorway and a boiler door; or the lower part of the boiler body is provided with a burner or a stove; the cast iron boiler liner is a rectangular cylinder; the cast iron furnace liner and communicated cast iron water tubes are cast into a whole; the total or the partial boiler shell surface outside the cast iron boiler liner and the boiler body are divided into two bodies; and sealing gaskets are clamped and connected between the boiler shell surface and the periphery of the boiler body, which are divided into two bodies, and in the periphery of the smoke outlet or the boiler doorway through bolts. The cast iron boiler has no leakage or less leakage of fuel gas in the boiler, does not burn out connecting parts or sealing parts, increases heating area and keeps a heated piece in a combustion hearth form a whole.

Description

Cast-iron boiler

Technical field: cast-iron boiler 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, and the water jacket sleeve of boiler body can also be that more piece is docked composition up and down.

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.Publication number is the cast iron boiler with stereo burning 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 hydroecium, 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, and seal cost height also 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, and service life is longer, is convenient to the cast-iron boiler of fabrication and installation combination.

In order to address the above problem, cast-iron boiler of the present invention, still have the sealing of shell and flue to constitute the boiler body of double wall hydroecium, mainly be to form wall-sandwiched layer in the side, constitute the hydroecium in the boiler body, the boiler body upper end has outlet flue and chimney, and the boiler body bottom has fire bars and the side has stove gate and fire door, perhaps the boiler body bottom is provided with burner or is provided with cooking stove, is distributed with the water pipe of connection 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 the boiler top 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, between cast iron furnace chamber and shell face, be double wall, as the part of hydroecium.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.Fire bars is preferably the hollow bar that is communicated with the double wall hydroecium, and hollow bar is circle, rectangle, trapezoidal, the above polygon of triangle or form limit.Hollow bar has played the effect of boiler water tube like this, more can increase heating surface (area) (HS, improves the thermal efficiency, and can increase the service life of fire bars.

The shell face that flue is outer mainly is four sides, can be that four sides all are divided into two bodies with boiler body, four shell faces respectively with boiler body around between accompany sealing gasket and be connected by bolt, between cast iron furnace chamber and shell face, form double wall.The shell face and the boiler body of two or three sides in four sides are divided into two bodies, two or three shell faces respectively with boiler body around between accompany sealing gasket and be connected by bolt, between cast iron furnace chamber and shell face, form double wall; Two or three shell faces so mainly are shell face relative with the cast iron water pipe port or the shell face that has stove gate; Be divided into two bodies for shell face that has stove gate and boiler body, corresponding flue part also has stove gate, around shell face and the boiler body between and stove gate accompany sealing gasket all around and be connected by bolt; Other faces directly and boiler body and flue be cast as one, and and flue between form double wall; Form the double wall cast structure between other faces and the flue, both sides generally are uncovered, closure plate can be set separately, also can utilize with the vertical shell face shutoff of these faces outside and can be communicated with, can also form the double wall water jacket of connection with the double wall that corresponding shell face forms.Have flue top for flue, outer shell face and the boiler body in flue top is divided into two bodies, the shell face respectively with (mainly be around the flue top around the boiler body, also can partly be shell end with other faces) and outlet flue around between accompany sealing gasket and be connected by bolt, cast iron furnace chamber push up and the shell face between form double wall.

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 removes the left cutaway view of top cover for this two joint cast-iron boiler bodies, Fig. 3 is this two joint cast-iron boiler body A-A partial sectional views, Fig. 4 is this two joint cast-iron boiler body tube connector assembly amplification views, Fig. 5 is the front section view of this two joint cast-iron boiler bodies, Fig. 6 is the two joint shell face longitudinal sectional views up and down of this two joint cast-iron boiler bodies, Fig. 7 is the vertical left view of two joint shell faces up and down of this two joint cast-iron boiler bodies, and Fig. 8 is the front view of this two joint cast-iron boiler bodies of a kind of single-unit; Fig. 9 is the front section view of this single-unit cast-iron boiler body, and Figure 10 is the shell face longitudinal sectional view of this single-unit cast-iron boiler body, and Figure 11 is the vertical left view of shell face of this single-unit cast-iron boiler body; The amplification view that utilizes the waste heat chimney that Figure 12 is provided with for the cast-iron boiler top.Example below in conjunction with accompanying drawing further specifies.

Specific embodiment:

Embodiment one, a kind of two joint cast-iron boilers of the present invention save cast

iron furnace chamber

5,3 respectively and up and down and the flue closedtop closes the boiler body that has constituted the double wall hydroecium by nine block casting iron pan shells 9.Mainly be four sides and top formation wall-sandwiched layer, constitute the hydroecium in the boiler body.The boiler body upper end has outlet flue and chimney 8, and the boiler body bottom has the hollow water pipe fire bars 2 that is communicated with the double wall hydroecium, and left surface has into water connector, and positive side has stove gate and fire door.The boiler body bottom can also be provided with burner or be provided with independent cooking stove, and boiler body below seat is placed on above the furnace base 13.Furnace base 13 has ash bin 1.Casting all-in-one-piece water pipe 10 between the furnace wall, the water pipe 10 of distribution is communicated with furnace wall hydroecium outward.Boiler body critical piece of the present invention like this is the cast iron structure.Wherein saving flue up and down is respectively cast-in-block, is convenient to the interior combustion gas of stove like this and does not leak or few the leakage, does not burn out attaching parts and seal member.Save the rectangular cylinder of cast iron furnace chamber up and down for butt joint.The cast iron furnace chamber two ends of rectangle tubular are uncovered tube.Last joint cast iron furnace chamber upper end uncovered is stamped the furnace top cover 6 that flue top and shell face are combined into.Furnace top cover has outlet flue and is socketed with the chimney 8 that utilizes waste heat, and chimney 8 outer double walls have the water outlet connector.Cast iron furnace chamber is cast as one with the cast iron water pipe that is communicated with, and has fully increased heating surface (area) (HS, has kept the heated object in the burner hearth to become integral body.The outer shell face 9 in four sides of cast iron furnace chamber and flue top all is divided into two bodies with the flue of boiler body, reaches outlet flue or stove gate between around the shell face that is divided into two bodies and the flue and accompanies sealing gasket 11 all around and also be connected by bolt 12.Nine double wall hydroeciums have been formed between cast iron furnace chamber and the shell face, as the part of boiler water jacket.Nine double walls are communicated with by tube connector.Wherein save the tube connector 4 that corresponding double wall is used up and down, the cast iron furnace chamber intercommunicating pore is passed at two ends respectively, is connected and fixed with flange 14 and screw at the cast iron furnace chamber outer wall, and the asbestos pad that is enclosed within two ends is clipped in and forms sealing between flange and the cast iron furnace chamber outer wall.Such tube connector becomes again and is heated water pipe, promptly plays the effect that is communicated with double wall, has increased heat exchange area again, has increased the operating efficiency of boiler.Last joint double wall also is communicated with tube connector 7 between the double wall outward with furnace roof, two ends are passed the intercommunicating pore of cast iron furnace chamber sidewall and the intercommunicating pore of cast iron furnace chamber roof respectively, be connected and fixed with flange and screw in flue side and flue top outer wall, the asbestos pad that is enclosed within two ends is clipped in and forms sealing between flange and the outer wall.Equally, tube connector 2 also can be between the shell face be connected and fixed by the flange that is threaded and be communicated with.Flue good integrity like this, and connecting portion only is set outside flue and seals the position, guaranteed that connecting portion particularly seals the position and is difficult for burning out, can not be subjected to big difference variation, cause and damage and cause leakage, and be convenient to parts casting process and assemble, and can be combined into the boiler of plurality of specifications capacity, reduce production costs greatly and operating cost.

Embodiment two, a kind of cast-iron boiler of the present invention seal the boiler body that has constituted the double wall hydroecium by five block casting

iron pan shells

19,24 and cast iron furnace chamber 15.Mainly be that four sides and end face at boiler body forms double wall, constitute the hydroecium in the boiler body, and have into water water outlet connector.The boiler body upper end has outlet flue 18 and chimney, and the boiler body bottom has hollow bar 22, and positive side has stove gate and fire door 30.The boiler body bottom can also be provided with burner or be provided with independent cooking stove, and the boiler body below is sat and is placed on above the furnace base 21.Casting all-in-one-piece water pipe 20 and rectangle hollow fire bars 22 are arranged between the furnace wall, and the water pipe of distribution and hollow bar are communicated with furnace wall hydroecium outward.Boiler body critical piece of the present invention so all is the cast iron structure.Wherein flue and water pipe 20 and hollow bar 22 are cast-in-blocks, are convenient to the interior combustion gas of stove like this and do not leak or few the leakage, and the gas of burning does not directly contact with attaching parts and seal member.Cast iron furnace chamber is a rectangular cylinder.The cast iron furnace chamber two ends of rectangle tubular are uncovered tube.Cast iron furnace chamber upper end uncovered is stamped the boiler top cover that flue top 23 and shell face 24 are combined into.The boiler top cover has outlet flue and can be socketed with the chimney that utilizes waste heat.Cast iron furnace chamber is cast as one with cast iron water pipe that is communicated with and hollow bar, has fully increased heating surface (area) (HS, has kept the heated object in the burner hearth to become integral body.The outer shell face in four sides of cast iron furnace chamber and flue top all is divided into two bodies with the flue of boiler body, reaches outlet flue or stove gate between around the shell face that is divided into two bodies and the flue and accompanies sealing gasket 26 all around and also be connected by bolt 25.Five double wall hydroeciums have been formed between cast iron furnace chamber and the shell face, as the part of water jacket.Also can before and after shell face and flue be cast as one, followingly on the shell face fuse formation double wall space between shell face and flue, and limit, the left and right sides, double wall space is uncovered with the casting of flue side; On the cover plate 19 that the shell face of left and right side forms on following and the flue following peripheral accompany sealing gasket and be connected by bolt, cover plate 19 front and rear side accompany sealing gasket with front and back shell face opening end and are connected by bolt, form four side double wall water jackets that side connects.The flue top also can be cast as one with the flue sidewall, forming just, the lower end is uncovered tubular, the flue heading tape has outlet flue, the outer shell face in flue top also has outlet flue, and the shell face forms and covers shape, accompany sealing gasket on every side with flue top periphery and outlet flue around the shell face periphery of lid shape and the outlet flue and be connected the double wall hydroecium on formation boiler top by bolt.Can be communicated with by tube connector between five double wall hydroeciums, also can only can be communicated with by tube connector not connecting between the double wall hydroecium.Tube connector between the double wall hydroecium, the connection that can in flue, distribute, the connection that also can outside shell, distribute, preferably distributing in flue is communicated with.Such tube connector becomes again and is heated water pipe, more helps heat exchange.The cast iron furnace chamber intercommunicating pore is passed at the best two ends of tube connector that distribution is communicated with in flue respectively, be connected and fixed with flange and screw at the cast iron furnace chamber outer wall, flange can be threaded or weld with tube connector, and the asbestos pad that is enclosed within two ends is clipped in and forms sealing between flange and the cast iron furnace chamber outer wall.The cast-iron boiler of Xing Chenging like this, flue good integrity not only, be difficult for the heating flame distortion, and connecting portion only is set outside flue and seals the position, guaranteed that connecting portion particularly seals the position and is difficult for burning out, can not be subjected to big difference variation, cause damage and cause leakage, reduce production costs effectively and operating cost.

Claims

1, a kind of cast-iron boiler, there is the sealing of shell and flue to constitute the boiler body of double wall hydroecium, 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, perhaps the boiler body bottom is provided with burner or is provided with cooking stove, be distributed with the water pipe of connection between the furnace wall, it is characterized in that: boiler body is a cast iron, cast iron furnace chamber is a rectangular cylinder, cast iron furnace chamber is cast as one with the cast iron water pipe that is communicated with, the shell part face that cast iron furnace chamber is outer or all face be divided into two bodies with boiler body, reach outlet flue or stove gate between around the shell face that is divided into two bodies and the boiler body and accompany sealing gasket all around and be connected by bolt.

2, as the said cast-iron boiler of claim 1, it is characterized in that: the hollow bar of fire bars for being communicated with the double wall hydroecium.

3, as the said cast-iron boiler of claim 2, it is characterized in that: hollow bar is circle, rectangle, trapezoidal, the above polygon of triangle or form limit.

4, as the said cast-iron boiler of claim 1, it is characterized in that: 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.

5, as the said cast-iron boiler of claim 2, it is characterized in that: be divided into two bodies with hollow bar port, casting iron pan shell side wall and boiler body that the cast iron water pipe port is relative, and with boiler body around between accompany sealing gasket and be connected by bolt.

6, as claim 1 or 2 or 3 said cast-iron boilers, it is characterized in that: four sidewalls of cast iron shell accompany sealing gasket with boiler body all around and are connected by bolt.

7, as claim 1 or 2 or 3 or 4 or 5 said cast-iron boilers, it is characterized in that: the boiler body upper end has the top for having the boiler top of hydroecium of outlet flue and chimney, accompany sealing gasket between boiler top and the boiler body and be connected by bolt, perhaps 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.

8, as claim 1 or 2 or 3 or 4 or 5 said cast-iron boilers, it is characterized in that: boiler body is two joints or the above butt joint of two joints, the cast iron double wall hydroecium that the boiler body of every joint all is made of rectangle tubular shell and flue closed at both ends is communicated with tube connector between the adjacent furnace wall that saves cast iron double wall hydroecium up and down.

9, as the said cast-iron boiler of claim 8, it is characterized in that: the connecting hole of furnace wall is passed at the tube connector two ends between the connection furnace wall respectively, in the furnace wall outside and connecting hole welding, perhaps be connected with the furnace wall outside with screw by ring flange, the sealing gasket that is enclosed within the cast iron water pipe end is clipped between ring flange and the furnace wall.