CN205664380U - Novel high -efficiency biological matter boiler - Google Patents

Abstract

A new type of high-efficiency biomass hot water boiler includes a pot shell, a furnace liner, a smoke transfer chamber and a base. chamber and the upper smoke chamber are connected to the pot shell and the furnace through the cupola, the outer water chamber is between the pot shell and the furnace, and the inner water chamber and the outer water chamber are connected through four rectangular holes, and the outer water chamber is equipped with two and three The return bend smoke pipe and sewage pipe, the furnace door and the feed port are arranged on one side of the combustion chamber, the fire grate is arranged below, the drawer-type ash collecting hopper is arranged under the fire grate, and the inner wall of the combustion chamber is equipped with refractory bricks and refractory arches. The chamber is equipped with a smoke pipe with a built-in spoiler. The spoiler is made of steel wire in the shape of a cylindrical spiral wire, and a straight section of steel wire is left at both ends. The straight section of steel wire is welded to the upper tube plate and the lower tube plate. Fixed the position of the spoiler in the smoke pipe. The utility model has the advantages of simple structure, high heat transfer efficiency, no dust accumulation in the smoke pipe, and low dust content in the smoke exhaust gas.

Description

A New High Efficiency Biomass Hot Water Boiler

Technical field:

The invention relates to a novel high-efficiency biomass hot water boiler, which is suitable for the field of small domestic boilers in rural areas.

Background technique:

Biomass fuel is a renewable energy with wide sources and zero carbon dioxide emissions. It is a new type of fuel vigorously advocated and promoted by the country. my country is a large agricultural country, and the output of crop straws is large every year. If the crop straws are burned directly, on the one hand, it will cause environmental pollution, and on the other hand, the biomass energy stored in the straws will not be used, resulting in a waste of resources. In recent years, due to increasingly stringent environmental protection requirements and energy shortages, the development of biomass boilers has received national attention.

Invention content:

The present invention intends to provide a novel high-efficiency biomass hot water boiler.

The purpose of the present invention is achieved like this:

The invention relates to a new type of high-efficiency biomass hot water boiler, which includes a pot shell 1, a furnace 3, a smoke transfer chamber 13 and a base 14. The pipe base 2 and the furnace 3 are provided with a combustion chamber 10, an inner water chamber 7, a lower smoke chamber 20 and an upper smoke chamber 21, and the pot shell 1 and the furnace 3 are connected through the cupola 4, and the space between the pot shell 1 and the furnace 3 is The outer water chamber 9 communicates with the inner water chamber 7 and the outer water chamber 9 through four rectangular holes 18. A furnace door 11 and a feed port 12 are arranged on one side of the combustion chamber 10, and a fire grate 16 is arranged below the fire grate 16. There is a drawer-type ash collecting hopper 15, and the outer water chamber 9 is provided with a two-return curved smoke pipe 6, a three-return curved smoke pipe 5 and a sewage pipe 23, and the inner wall of the combustion chamber 10 is provided with refractory bricks and a refractory arch 25, and the inner water chamber 7 A smoke pipe with a built-in spoiler strip 8 is arranged. The spoiler strip 8 is made of steel wire in the shape of a cylindrical spiral wire, and a section of straight steel wire is left at both ends. The straight section steel wire is welded to the upper tube plate 19 and the lower tube plate 17 to fix the position of the spoiler strip 8 in the smoke pipe.

The biomass fuel is delivered to the combustion chamber 10 through the feed port 12, the fuel is ignited through the furnace door 11, and the high-temperature flue gas generated by the combustion enters the smoke pipe arranged in the inner water chamber 7 to heat the water in the inner water chamber 7, and then After entering the lower smoke chamber 20, it enters the double-return curved smoke pipe 6 to transfer heat with the water in the outer water chamber 9, and then enters the three-return curved smoke pipe 5 through the smoke transfer chamber 13 to further heat the water in the outer water chamber 9. Then enter the upper smoke chamber 21 and flow out from the cupola 4.

Beneficial effect:

1. A new type of high-efficiency biomass hot water boiler involved in the present invention has the advantages of simple structure, high heat transfer efficiency, low dust accumulation in the smoke pipe, and low dust content in the exhaust gas.

Description of drawings:

Accompanying drawing 1 is the front view of a new high-efficiency biomass hot water boiler.

Accompanying drawing 2 is a side view of a novel high-efficiency biomass hot water boiler.

Accompanying drawing 3 is the schematic diagram of the relative positions of the second and third return bend smoke pipes.

detailed description:

Example 1:

The invention relates to a new type of high-efficiency biomass hot water boiler, which includes a pot shell 1, a furnace 3, a smoke transfer chamber 13 and a base 14. The pipe base 2 and the furnace 3 are provided with a combustion chamber 10, an inner water chamber 7, a lower smoke chamber 20 and an upper smoke chamber 21, and the pot shell 1 and the furnace 3 are connected through the cupola 4, and the space between the pot shell 1 and the furnace 3 is The outer water chamber 9 communicates with the inner water chamber 7 and the outer water chamber 9 through four rectangular holes 18. A furnace door 11 and a feed port 12 are arranged on one side of the combustion chamber 10, and a fire grate 16 is arranged below the fire grate 16. There is a drawer-type ash collecting hopper 15, and the outer water chamber 9 is provided with a two-return curved smoke pipe 6, a three-return curved smoke pipe 5 and a sewage pipe 23, and the inner wall of the combustion chamber 10 is provided with refractory bricks and a refractory arch 25, and the inner water chamber 7 A smoke pipe with a built-in spoiler strip 8 is arranged. The spoiler strip 8 is made of steel wire in the shape of a cylindrical spiral wire, and a section of straight steel wire is left at both ends. The straight section steel wire is welded to the upper tube plate 19 and the lower tube plate 17 to fix the position of the spoiler strip 8 in the smoke pipe.

Example 2:

The biomass fuel is delivered to the combustion chamber 10 through the feed port 12, the fuel is ignited through the furnace door 11, and the high-temperature flue gas generated by the combustion enters the smoke pipe arranged in the inner water chamber 7 to heat the water in the inner water chamber 7, and then After entering the lower smoke chamber 20, it enters the double-return curved smoke pipe 6 to transfer heat with the water in the outer water chamber 9, and then enters the three-return curved smoke pipe 5 through the smoke transfer chamber 13 to further heat the water in the outer water chamber 9. Then enter the upper smoke chamber 21 and flow out from the cupola 4.

Example 3:

The refractory arch 25 arranged in the combustion chamber is conducive to increasing the temperature of the combustion chamber 10, so that the fuel can be fully burned and the incomplete combustion loss of the fuel can be reduced. The dust content in the flue gas is reduced; placing the spoiler strip 8 in the flue gas has the effect of increasing flue gas disturbance and destroying the boundary layer on the inner wall of the flue gas, which is conducive to improving the heat exchange effect between the flue gas and the water in the inner water chamber 7, At the same time, it is not easy to accumulate dust in the smoke pipe; when the furnace is stopped, the spoiler strip 8 can be pulled out to clean the dust, and the labor intensity of cleaning is low; the outer water chamber 9 is arranged at the same time. The flue gas stroke is extended, and the heat exchange time between the high-temperature flue gas and the water in the outer water chamber is prolonged, which is conducive to improving the thermal efficiency of the boiler and reducing the temperature of the flue gas.

Claims (4)

1. A novel high-efficiency biomass hot water boiler, which consists of: a pot shell, a furnace liner, a smoke chamber and a base, and is characterized in that: the pot shell is provided with a water inlet pipe seat, an outlet pipe seat and an atmosphere communication pipe seat, and the furnace The gallbladder is equipped with a combustion chamber, an inner water chamber, a lower smoke chamber and an upper smoke chamber. The pot shell and the furnace gall are connected through cupolas, and the outer water chamber is between the pot shell and the furnace gall. There is a furnace door and a feed inlet on one side of the water chamber and the combustion chamber, and a fire grate is arranged below, and a drawer-type ash collecting hopper is arranged below the fire grate. 2. A new type of high-efficiency biomass hot water boiler according to claim 1, characterized in that the outer water chamber is equipped with a two-pass curved smoke pipe, a three-pass curved smoke pipe and a sewage pipe. 3. A new high-efficiency biomass hot water boiler according to claim 1, characterized in that the inner wall of the combustion chamber is provided with refractory bricks and refractory arches. 4. A new high-efficiency biomass hot water boiler according to claim 1, characterized in that the inner water chamber is arranged with a built-in spoiler.