A water-cooled combustion hot water boiler

Abstract

This utility model discloses a water-cooled combustion hot water boiler, including a boiler body. A burner is located on one side of the boiler body, and a condenser is located on the other side. A flue gas outlet is located on the outer side of the condenser. A combustion chamber is located inside the boiler body, and a water tank is located above the combustion chamber. A partition is fixed inside the water tank, dividing the water tank into an injection chamber and a return chamber. An arched chamber is located below the combustion chamber. An inlet pipe and a return pipe are vertically fixed inside the combustion chamber. One end of the inlet pipe connects to the injection chamber, and the other end connects to the arched chamber. One end of the return pipe connects to the arched chamber, and the other end connects to the return chamber. An injection pipe connects to the top of the injection chamber, and a return pipe and an exhaust pipe are located at the top of the return chamber. This water-cooled combustion hot water boiler can continuously supply hot water to meet usage needs and can suppress NO during use. X It can generate and cool and eliminate whitening of high-temperature flue gas, making it highly practical.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and in particular to a water-cooled combustion hot water boiler. Background Technology

[0002] Hot water boilers, as thermal power equipment that uses water as a medium to convert fuel energy into heat energy and output hot water, are widely used in industrial production and people's livelihoods. They are key infrastructure for ensuring production continuity and living comfort. In industrial settings, they provide a stable heating source for processes such as chemical reactions, textile printing and dyeing, and food processing. For example, in chemical production, hot water boilers are needed to maintain a constant temperature environment in the reaction vessel to ensure that chemical reactions are carried out efficiently and safely. In the public sector, hot water boilers undertake core functions such as centralized heating in winter, hot water supply to commercial establishments (such as hotels and hospitals), and hot water delivery for residential use. Especially in the frigid northern regions, their operational stability is directly related to the guarantee of winter heating and the quality of life for residents.

[0003] Traditional hot water boilers typically heat the water inside the pipes directly through a flame within the boiler body. This method generates localized high temperatures and produces NO. X The gas affects the environment; moreover, the heat from the high-temperature flue gas inside the furnace cannot be absorbed and utilized, resulting in unsatisfactory performance. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems by providing a solution that can continuously supply hot water to meet usage needs and suppress NO during use. X A water-cooled combustion hot water boiler that generates heat and can cool and eliminate whitening of high-temperature flue gas.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a water-cooled combustion hot water boiler, comprising a boiler body, a burner disposed on one side of the boiler body, a condenser disposed on the other side, a flue gas outlet disposed on the outer side of the condenser, a combustion chamber disposed within the boiler body, a water tank disposed above the combustion chamber, a partition fixed inside the water tank, the partition dividing the water tank into a water injection chamber and a water return chamber, an arched chamber disposed below the combustion chamber, an inlet pipe and a return pipe vertically fixed inside the combustion chamber, one end of the inlet pipe communicating with the water injection chamber and the other end communicating with the arched chamber, one end of the return pipe communicating with the arched chamber and the other end communicating with the return chamber.

[0006] Preferably, the top of the water injection chamber is connected to a water injection pipe, the top of the water return chamber is provided with a water return pipe and an exhaust pipe, and the outer wall of the water return chamber is also provided with an observation port.

[0007] Preferably, the combustion chamber is further provided with an air distribution plate and a pipe array on the side near the burner. The air distribution plate includes multiple bent plates that are fitted and fixed together, with a gap between each pair of adjacent bent plates.

[0008] Preferably, the pipe array is located behind the air distribution plate, and the pipe array includes multiple square pipes arranged in an array. The bottom of the square pipes is connected to the arched chamber, and the top is connected to the return water chamber.

[0009] Preferably, the outer wall of the combustion chamber is also provided with a flame observation port.

[0010] Preferably, the condenser includes an internally meandering condenser tube, one end of which is connected to a cold water inlet pipe and the other end of which is connected to a hot water outlet pipe. After passing through the condenser tube, the high-temperature flue gas is discharged outward at the flue gas outlet.

[0011] Preferably, the bottom of the condenser is also provided with a drain pipe for draining condensate.

[0012] This utility model discloses a water-cooled combustion hot water boiler, comprising a boiler body, a burner on one side of the boiler body, a condenser on the other side, a flue gas outlet on the outer side of the condenser, a combustion chamber inside the boiler body, a water tank above the combustion chamber, a partition fixed inside the water tank dividing the water tank into an injection chamber and a return chamber, an arched chamber below the combustion chamber, an inlet pipe and a return pipe vertically fixed inside the combustion chamber, one end of the inlet pipe communicating with the injection chamber and the other end communicating with the arched chamber, one end of the return pipe communicating with the arched chamber and the other end communicating with the return chamber, an injection pipe connected to the top of the injection chamber, and a return pipe and an exhaust pipe located at the top of the return chamber. Compared with the prior art, this water-cooled combustion hot water boiler has the ability to continuously supply hot water to meet usage needs and can suppress NO during use. X It generates [something] and has the beneficial effect of cooling and eliminating whitening of high-temperature flue gas. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of a water-cooled combustion hot water boiler according to the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the internal structure of a water-cooled combustion hot water boiler according to the present invention. Figure 2 .

[0015] Figure 3 This is a schematic diagram of the air distribution plate in a water-cooled combustion hot water boiler according to the present invention.

[0016] In the diagram: 1. Boiler body; 2. Combustion chamber; 21. Inlet water pipe; 22. Return water pipe; 23. Air distribution plate; 231. Bending plate; 232. Gap; 24. Pipe bank; 25. Flame observation port; 3. Baffle plate; 4. Water injection chamber; 41. Water injection pipe; 5. Return water chamber; 51. Return water pipe; 52. Exhaust pipe; 53. Observation port; 6. Burner; 7. Arched chamber; 8. Condenser; 81. Cold water inlet pipe; 82. Hot water outlet pipe; 83. Drain pipe; 9. Condenser pipe; 10. Flue gas outlet. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] Please refer to Figure 1-3 A water-cooled combustion hot water boiler includes a boiler body 1. A burner 6 is provided on one side of the boiler body 1. The burner includes a burner and a fan. Air and fuel are blown into the boiler and ignited by the burner. A condenser 8 is provided on the other side. A flue gas outlet 10 is provided on the outside of the condenser 8. A combustion chamber 2 is provided inside the boiler body 1. A water tank is provided above the combustion chamber 2. A partition 3 is fixed inside the water tank. The partition 3 divides the water tank into a water injection chamber 4 and a water return chamber 5. An arched chamber 7 is provided below the combustion chamber 2. A water inlet pipe 21 and a water return pipe 22 are vertically fixed inside the combustion chamber 2. One end of the water inlet pipe 21 is connected to the water injection chamber 4 and the other end is connected to the arched chamber 7. One end of the water return pipe 22 is connected to the arched chamber 7 and the other end is connected to the water return chamber 5.

[0019] The top of the water injection chamber 4 is connected to a water injection pipe 41, the top of the return water chamber 5 is provided with a return water pipe 51 and an exhaust pipe 52, and the outer wall of the return water chamber 5 is also provided with an observation port 53.

[0020] When in use, external water enters the water injection chamber 4 through the water injection pipe 41, and then flows downward into the arched chamber 7 through the water inlet pipe 21. As external water is continuously injected, the water in the arched chamber 7 will flow upward into the return chamber 5 along the return pipe 22. During this process, the flame emitted from the combustion chamber 2 heats the return water pipe 22. After heating, the hot water in the pipe flows upward and eventually flows outward in the return water pipe 51. Meanwhile, the high-temperature flue gas generated by fuel combustion flows towards the condenser 8. When it flows, it passes through the inlet pipe 21. At this time, the heat of the high-temperature flue gas will also heat the inlet pipe 21, raising the water temperature in the pipe for the first time. The hot water that has been heated for the first time enters the return water pipe 22 again and is heated again by the flame to improve the heating efficiency of the hot water and effectively utilize the internal heat source.

[0021] In this embodiment, the combustion chamber 2 is also provided with an air distribution plate 23 and a pipe array 24 on the side near the burner 6. The air distribution plate 23 includes a plurality of bent plates 231 that are fitted and fixed together, with a gap 232 between each pair of adjacent bent plates 231. The pipe array 24 is located behind the air distribution plate 23 and includes a plurality of square tubes arranged in an array. The bottom of the square tubes is connected to the arched chamber 7 and the top is connected to the return water chamber 5. When in use, the square tubes also contain water.

[0022] During use, air and fuel are mixed and then sprayed out through the air distributor 23 and the flames are ignited at the gap 232. The sprayed flames pass through the pipe array 24. Because the pipe array 24 contains water, the flame temperature is continuously reduced, ensuring uniform flame distribution and preventing localized high temperatures. This effectively suppresses thermal NOx. X The generation of [product name] achieves low-nitrogen and environmentally friendly production.

[0023] As a preferred embodiment, the outer wall of the combustion chamber 2 is also provided with a flame observation port 25, which allows observation of the internal flame.

[0024] Furthermore, the condenser 8 includes an internally meandering condenser tube 9. One end of the condenser tube 9 is connected to the cold water inlet pipe 81, and the other end is connected to the hot water outlet pipe 82. After passing through the condenser tube 9, the high-temperature flue gas is discharged outward at the flue gas outlet 10. During this process, the high-temperature flue gas temperature can be reduced by passing through the condenser tube 9, which can effectively achieve the whitening effect and make the flue gas emission meet the requirements.

[0025] In addition, the bottom of the condenser 8 is provided with a drain pipe 83 for discharging condensate, wherein the end of the drain pipe 83 is connected to a U-shaped liquid seal pipe to prevent internal flue gas from being discharged from the drain pipe 83.

[0026] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A water-cooled combustion hot water boiler, comprising a boiler body, characterized in that, A burner is installed on one side of the boiler body, and a condenser is installed on the other side. A flue gas outlet is installed on the outside of the condenser. A combustion chamber is installed inside the boiler body, and a water tank is installed above the combustion chamber. A partition is fixed inside the water tank, which divides the water tank into a water injection chamber and a water return chamber. An arched chamber is installed below the combustion chamber. A water inlet pipe and a water return pipe are vertically fixed inside the combustion chamber. One end of the water inlet pipe is connected to the water injection chamber, and the other end is connected to the arched chamber. One end of the water return pipe is connected to the arched chamber, and the other end is connected to the water return chamber.

2. The water-cooled combustion hot water boiler according to claim 1, characterized in that, The top of the water injection chamber is connected to a water injection pipe, and the top of the return water chamber is equipped with a return water pipe and an exhaust pipe. An observation port is also provided on the outer wall of the return water chamber.

3. The water-cooled combustion hot water boiler according to claim 1 or 2, characterized in that, The combustion chamber is also provided with an air distribution plate and a pipe array on the side near the burner. The air distribution plate includes multiple bent plates that are fitted and fixed together, with a gap between each pair of adjacent bent plates.

4. The water-cooled combustion hot water boiler according to claim 3, characterized in that, The pipe array is located behind the air distribution plate. The pipe array includes multiple square pipes arranged in an array. The bottom of the square pipes is connected to the arched chamber, and the top is connected to the return water chamber.

5. The water-cooled combustion hot water boiler according to claim 1, characterized in that, The outer wall of the combustion chamber is also provided with a flame observation port.

6. The water-cooled combustion hot water boiler according to claim 1, characterized in that, The condenser includes an internally meandering condenser tube. One end of the condenser tube is connected to a cold water inlet pipe, and the other end is connected to a hot water outlet pipe. After passing through the condenser tube, the high-temperature flue gas is discharged outward at the flue gas outlet.

7. The water-cooled combustion hot water boiler according to claim 6, characterized in that, The bottom of the condenser is also equipped with a drain pipe for draining condensate.

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