CN103727564B - Combined boiler - Google Patents

Abstract

The invention discloses a combined boiler which comprises a boiler bottom and a heat absorption smoke box, wherein the boiler bottom comprises a panel, a hearth and a lower flue, an upper flue communicated with the lower flue is arranged in the heat absorption smoke box, a water inlet used for circulating water inflow of the combined boiler is formed in the bottom of the hearth, a first pipeline connected with the water inlet is formed in the boiler bottom, a second pipeline connected with the first pipeline is formed in the heat absorption smoke box, a water outlet connected with the second pipeline is formed in the top end of the heat absorption smoke box, the bottom end of the heat absorption smoke box is detachably and fixedly connected to the panel, and the top end of the first pipeline is connected to the bottom end of the second pipeline through a detachable sealing connecting device surrounding the connecting position of the upper flue and the lower flue. The combined boiler is convenient to transport and good in sealing performance.

Description

combination boiler

technical field

The invention relates to a boiler, in particular to a combined boiler.

Background technique

Boilers are an important living equipment. For remote areas, or areas without centralized heating, household boilers can provide hot water while heating, and the heat of the boiler can be used for cooking.

When the boiler is heating, the circulating water system of the boiler needs power. The traditional circulating water system uses an electric water pump as the power source, but the electric water pump has the disadvantage of high noise, and there are wearing parts inside, which require daily maintenance, which affects the use. convenience. And it doesn't work when there is a power outage. Boilers are usually powered by coal or natural gas, while water pumps are powered by electricity, which does not make full and reasonable use of energy, and is not effective in energy saving and environmental protection.

The publication number is CN103321775A (hereinafter referred to as document 1), and the Chinese invention patent titled "Boiler and its liquid piston heat engine" discloses a boiler that solves the above-mentioned problems. One of them is a straight exhaust boiler, including a furnace body, a flue (essentially the lower flue, hereinafter referred to as the lower flue, to distinguish it from the upper flue in the heat-absorbing smoke box) and a furnace. The body includes a heat-absorbing smoke box and a chimney, and the lower flue is arranged between the heat-absorbing smoke box and the furnace. The function of the lower flue is to provide a passage for the high-temperature gas after combustion to enter the upper flue of the heat-absorbing smoke box from the furnace, and the water heated by the boiler is arranged in the interlayer of the heat-absorbing smoke box, the lower flue and the furnace.

Usually, the heat-absorbing smoke box can also be arranged only above the lower flue, thereby reducing the material consumption of the entire boiler.

The above-mentioned domestic boiler, when its heat-absorbing smoke box and the furnace are integrally formed, is bulky and inconvenient for transportation. However, if it is manufactured separately and assembled after transportation to the destination, the connection between the interlayers between the two parts, that is, the connection of the water circulation pipeline between the two parts is a difficult problem. It is necessary to ensure the tightness of the circulating water. It is also necessary to ensure the airtight connection between the transition flue and the main flue in the heat-absorbing smoke box.

Contents of the invention

Aiming at the problems existing in the prior art, the object of the present invention is to provide a combined boiler which is convenient for transportation and can ensure the airtightness of the assembled boiler and the sealing performance of the connection of the circulating water pipeline.

In order to achieve the above object, the technical scheme of the present invention is as follows:

A combined boiler, comprising a furnace bottom and a heat-absorbing smoke box, the furnace bottom includes a panel, a furnace and a lower flue, the heat-absorbing smoke box has an upper flue communicated with the lower flue, and the furnace The bottom has a water inlet for the circulating water inlet of the combined boiler, the bottom of the furnace has a first pipeline connected to the water inlet, and the heat-absorbing smoke box has a water inlet connected to the first pipeline. The second pipeline connected, the top of the heat-absorbing smoke box has a water outlet connected to the second pipeline, the bottom end of the heat-absorbing smoke box is detachably and fixedly connected to the panel, the The top end of the first pipeline is connected to the bottom end of the second pipeline through a detachable sealing connection device surrounding the junction of the upper flue and the lower flue.

The beneficial effect of the present invention is that: the combined boiler of the present invention can be disassembled into two parts, the heat-absorbing smoke box and the furnace bottom, which improves the convenience of transportation; and, after being transported to the destination, the two parts can be conveniently assembled together, and can ensure the sealing performance after the connection between the two parts of the water circulation pipeline.

Description of drawings

Fig. 1 is a three-dimensional schematic view of a combined boiler according to a first embodiment of the present invention.

Fig. 2 is a schematic partial front view of the connection between the heat-absorbing smoke box and the furnace bottom of the combined boiler according to the first embodiment of the present invention.

Fig. 3 is a partial front sectional view of the connection between the heat absorbing smoke box and the furnace bottom of the combined boiler according to the first embodiment of the present invention.

Fig. 4 is a schematic diagram of the sealing connection device of the combined boiler according to the first embodiment of the present invention.

Fig. 5 is a perspective view of the heat absorbing smoke box of the combined boiler according to the first embodiment of the present invention.

Fig. 6 is a partial perspective view of the furnace bottom of the combined boiler according to the first embodiment of the present invention.

Fig. 7 is a schematic perspective view of a combined boiler according to a second embodiment of the present invention.

Fig. 8 is a schematic partial front view of the connection between the heat absorbing smoke box and the furnace bottom of the combined boiler according to the second embodiment of the present invention.

Fig. 9 is a partial front sectional view of the connection between the heat absorbing smoke box and the furnace bottom of the combined boiler according to the second embodiment of the present invention.

Fig. 10 is a schematic bottom view of the heat absorbing smoke box of the combined boiler according to the second embodiment of the present invention.

Fig. 11 is a perspective view of the heat absorbing smoke box of the combined boiler according to the second embodiment of the present invention.

Fig. 12 is a partial perspective view of the furnace bottom of the combined boiler according to the first embodiment of the present invention.

detailed description

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be pointed out that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

1. The combination boiler of the first embodiment

As shown in Fig. 1-Fig. 6, the combination boiler according to the first embodiment of the present invention includes two parts: a heat-absorbing smoke box 1 and a furnace bottom. The furnace bottom includes a panel 2 , a lower flue 3 , a furnace 4 and a support column 5 .

Wherein, the top of the heat-absorbing smoke box 1 has a chimney 11, and the chimney 11 needs to be added with a blast furnace barrel to facilitate the complete combustion of the combustibles in the furnace 4 and prevent carbon monoxide poisoning. An upper flue 15 is formed inside the heat-absorbing smoke box 1 , and the upper flue 15 communicates with the lower flue 3 after the entire boiler is assembled.

There is a second pipeline for accommodating boiler circulating water in the heating smoke box 1, which includes the interlayer 13 of the smoke box wall of the heat-absorbing smoke box 1 and a plurality of central pipes 14 in the upper flue 15, the number of central pipes 14 can be 6-15, the bottom end of the central tube 14 has a centripetal bend, as shown in Figure 3 and Figure 5 . After centripetal bending, the central tube 14 extends outward and communicates with the interlayer 13 . The top of the central pipe 14 is also in communication with the interlayer 13, the top of the interlayer 13 has an upwardly open water outlet 12, and the water outlet 12 is used to connect with the heating system to provide circulating hot water to the heating system. There can be multiple water outlets 12, and the temporarily unused water outlets 12 can be temporarily closed.

The panel 2 can be provided with a cooktop 22 for shelving pots, and can also have an interface 21 connected to the liquid piston heater in Document 1. The function of the liquid piston heater is to provide circulating power for the circulating water of the combined boiler. If the liquid piston heater is not used, the interface 21 can be covered with a cover plate.

The panel 2 has an opening connected to the heat-absorbing smoke box 1, surrounds the opening, and has an interlayer 20 for accommodating the circulating water of the boiler. When installing the boiler, the interlayer 20 and the interlayer 13 are connected to ensure the tightness of the connection between the two .

The function of the lower flue 3 is to provide a channel for the burned high-temperature gas to enter the heat-absorbing smoke box 1 from the furnace 4 .

The furnace 4 has a combustion chamber, and the furnace 4 also has pipelines (including interlayers) for accommodating boiler circulating water. These pipelines and the pipelines arranged in the panel 2 and the lower flue 3 are collectively called the first pipeline. The external source of boiler circulating water in a pipeline is the water source connected to the water inlet 40 . The water inlet 40 is arranged at the bottom of the furnace 4 . The side or front of the furnace 4 is also provided with a fire door 42, which is opened and closed by a handle 43; The bottom end of the furnace 4 is also provided with a drawer 41 for collecting and cleaning the ashes.

The support column 5 can be a steel pipe material, and is installed at the bottom of the lower flue 3 to maintain the overall balance of the combined boiler.

Next, the connection between the heat-absorbing smoke box 1 and the furnace bottom of the combined boiler of the present invention will be introduced emphatically. This connection has two parts, one is that the bottom of the heat-absorbing smoke box 1 is detachably fixedly connected to the panel 2, and the other is the top of the first pipeline, specifically the interlayer 20 is connected to the second through a detachable sealing connection device. The bottom end of the two pipelines is also the bottom end of the interlayer 13 .

Here, the bottom end of the heat-absorbing smoke box 1 is detachably fixedly connected to the panel 2 through bolts 69, and a connecting seat 17 is provided at the bottom end of the outer wall of the heat-absorbing smoke box 1, and the bolt 69 is pierced on the connecting seat 17. Bolt holes are provided on the panel 2 to detachably connect the heat-absorbing smoke box 1 to the panel 2 through bolts 69 . The bolt connection here does not need to be airtight, because after the boiler is assembled, at the connection between the above-mentioned panel 2 and the heat-absorbing smoke box 1, the upper flue 15 and the lower flue 3 are respectively connected to the interlayer 13 and interlayer Surrounded by 20, it forms a good airtightness, so there is no problem of smoke leakage from the connection.

As shown in Figures 4-6, the sealing connection device connecting the interlayer 20 and the interlayer 13 includes: a second convex wall 61, an annular plate 62, a water permeable hole 63 and a rib 64 arranged at the bottom end of the heat-absorbing smoke box 1; The first convex wall 66, annular plate 67, water permeable hole 68 provided at the opening of 2;

The first convex wall 66 is arranged around the opening of the panel 2 and extends upwards. The bottom end of the heat-absorbing smoke box 1 is embedded in the first convex wall 66 , and the gasket 65 is arranged on the inner surface of the first convex wall 66 and the heat-absorbing smoke box 1 between the outer walls. The rib 64 is also arranged on the outer wall of the heat-absorbing smoke box 1, and the gasket 65 is located below the rib 64. Therefore, the rib 64 can be pressed down to compress the gasket 65 to increase the sealing performance.

The retracted downward second convex wall 61 is arranged at the bottom end of the heat-absorbing smoke box 1, and the second convex wall 61 can be formed by extending downward from the inner layer plate forming the interlayer 13, or can be formed in the heat-absorbing smoke box 1. The bottom end of the plate is additionally formed by welding. A plurality of water permeable holes 63 are evenly formed on the circumference of the annular plate 62 outside the second convex wall 61, and correspondingly, a plurality of water permeable holes 63 are also formed on the corresponding positions of the circumference of the annular plate 67 inside the first convex wall 66. Hole 68. However, the water permeable hole 68 and the water permeable hole 67 may not be aligned up and down here.

In order to prevent water seepage in the upper flue 15 and the lower flue 3, a gasket 60 is arranged between the second convex wall 61, the annular plate 62 and the annular plate 67, and the gasket 60 is clamped from multiple directions, which plays a good sealing effect.

In the combined boiler of this embodiment, the sealing between the second pipeline of the heat-absorbing smoke box 1 and the first pipeline of the furnace bottom is good, and the circulating water throughput between the first pipeline and the second pipeline is Big.

The combined boiler of the second embodiment:

The parts of this embodiment that are the same as those of the first embodiment will not be repeated here.

The difference from the first embodiment is that, as shown in Fig. 7 and Fig. 8, in the first embodiment, the appearance of the furnace 4 is a quadrangular column, but in this embodiment, the appearance of the furnace 4 is cylindrical. The drawer 41 also has a circular arc shape correspondingly.

In addition, as shown in Figures 9-12, the sealing connection device connecting the interlayer 20 and the interlayer 13 is also different from the first embodiment, which includes: the second convex wall 86 provided at the bottom end of the heat-absorbing smoke box 1, an annular plate 89 , concave tube 87 and convex tube 83 ; first convex wall 82 , annular plate 84 , concave tube 87 and convex tube 83 provided on the opening of panel 2 ; and gasket 85 and gasket 81 .

The first convex wall 82 is arranged around the opening of the panel 2 and extends upward. The bottom end of the heat-absorbing smoke box 1 is embedded in the first convex wall 82 , and the gasket 81 is arranged on the inner surface of the first convex wall 82 and the heat-absorbing smoke box 1 between the outer walls.

The retracted downward second convex wall 86 is arranged at the bottom end of the heat-absorbing smoke box 1, and the second convex wall 86 can be formed by extending downward from the inner layer plate forming the interlayer 13, or can be formed in the heat-absorbing smoke box 1. The bottom end of the plate is additionally formed by welding. Concave tubes 87 or convex tubes 83 are evenly arranged on the circumference of the annular plate 89 on the outside of the second convex wall 86, and correspondingly, the corresponding positions on the circumference of the annular plate 84 on the inner side of the first convex wall 82 are also aligned up and down. A convex tube 83 and a concave tube 87 are respectively provided. A gasket 85 is arranged between the convex tube 83 and the concave tube 87 that cooperate with each other up and down, which plays a good sealing effect. When assembled, the male tube 83 is inserted into the female tube 87 .

In this embodiment, there are three tubular connectors, wherein the panel 2 has two convex tubes 83 and one concave tube 87; . But the present invention is not limited thereto. The arrangement of the convex pipe 83 with two bottoms and one top can reduce the resistance of circulating water from bottom to top.

In addition, the number of tubular connectors can also be multiple. If the number is an even number, the convex tube and the concave tube can each account for half. Tube.

The embodiments described herein so far should be understood as explanations of the present invention rather than limitations of the present invention. The scope of the present invention is defined not by the above description but by the patent claims, and the present invention is intended to include all modifications equivalent to the meaning and scope of the patent claims.

Claims (8)

1. a combined boiler, including furnace bottom and heat absorption smoke box, described furnace bottom includes panel, burner hearth and lower flue, in described heat absorption smoke box, there is the upper flue connected with described lower flue, described burner hearth bottom has the water inlet of the recirculated water water inlet for described combined boiler, there is in described furnace bottom the first pipeline being connected with described water inlet, there is in described heat absorption smoke box the second pipeline being connected with described first pipeline, the top of described heat absorption smoke box has the outlet being connected with described second pipeline, it is characterised in that:

The bottom of described heat absorption smoke box is dismountable is fixedly connected on described panel, and the top of described first pipeline by being connected to the bottom of described second pipeline around dismountable sealing and connecting device of described upper flue Yu described lower flue junction；

The recirculated water connecting promising described combined boiler on described panel provides the liquid piston heat engine of circulation power, or is provided with the interface of the liquid piston heat engine in Water circulation hydrodynamics source for connecting described combined boiler on described panel.

2. combined boiler as claimed in claim 1, it is characterized in that, described sealing and connecting device includes the upwards the first convex wall arranged on the first packing ring and described panel, the bottom of described heat absorption smoke box is embedded in described first convex wall, and described first packing ring is arranged between described first convex wall inner face and described heat absorption smoke box outside wall surface.

3. combined boiler as claimed in claim 2, it is characterized in that, described sealing and connecting device also includes the tubular connection for connecting described first pipeline and described second pipeline of the second convex wall and more than three, the downward described second convex wall of interior receipts is arranged at the bottom of described heat absorption smoke box, described tubular connection is formed on the bottom surface annular slab of the described heat absorption smoke box outside described second convex wall uniformly, described tubular connection is recessed pipe or convex pipe, the quantity of wherein said recessed pipe is less than or equal to the quantity of described convex pipe, the convex pipe and recessed pipe matched with described recessed pipe and convex pipe it is formed with on opposite position on the panel annular slab of the described panel of the inner side of described first convex wall.

4. combined boiler as claimed in claim 2, it is characterised in that the bottom of the outside wall surface of described heat absorption smoke box has fin, and described first packing ring is arranged at below described fin.

5. combined boiler as claimed in claim 4, it is characterized in that, described sealing and connecting device also includes the second convex wall and multiple permeable hole, the downward described second convex wall of interior receipts is arranged at the bottom of described heat absorption smoke box, and the plurality of permeable hole is respectively formed on the described panel annular slab of the bottom surface annular slab of the described heat absorption smoke box outside described second convex wall and the inner side of described first convex wall.

6. combined boiler as claimed in claim 5, it is characterised in that described second convex wall, described heat absorption smoke box bottom surface described bottom surface annular slab and the panel annular slab of described panel between be provided with the second packing ring.

7. combined boiler as claimed in claim 3, it is characterised in that be provided with the 3rd packing ring between described convex pipe and described recessed pipe.

8. combined boiler as claimed in claim 1, it is characterised in that described second pipeline includes smoke box wall interlayer and the many central canals in described heat absorption smoke box of described heat absorption smoke box, and described central canal bottom has centripetal bending.