Organic heat carrier furnace capable of prolonging flue gas flow

Abstract

The utility model relates to the technical field of boilers, in particular to an organic heat carrier furnace capable of prolonging smoke flow, which comprises a boiler body, a chain grate stoker arranged below the boiler body, a combustion chamber arranged above the chain grate stoker, a smoke exhaust pipe connected with one end of the boiler body, an inner coil pipe, a middle coil pipe and an outer coil pipe arranged inside the boiler body, the inner coil pipe, the middle coil pipe and the outer coil pipe form three smoke return strokes, and a roof pipe is arranged on the inner wall of the top of the boiler body. According to the organic heat carrier furnace capable of prolonging the flue gas flow path, three flue gas return paths are formed by the inner coil pipe, the middle coil pipe and the outer coil pipe, and the roof pipe is arranged, so that the residence time of flue gas in the boiler body is effectively prolonged, and heat energy in the flue gas can be fully utilized. By means of the design, the heat transfer efficiency of the boiler is improved, energy loss is reduced, the purposes of energy conservation and emission reduction are achieved, and media can enter and be discharged conveniently through the design of the oil inlet collecting box, the middle collecting box and the oil outlet collecting box.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to an organic heat carrier furnace for extending the flue gas flow. Background Art

[0002] In the field of boiler technology, improving energy efficiency and optimizing the combustion process have always been key research areas. Traditional boiler equipment has limitations in flue gas flow and heat transfer, often leading to energy loss and low heat transfer efficiency. Especially in organic heat transfer boilers, effectively extending the flue gas flow and maximizing the utilization of the heat energy within the flue gas is crucial to improving boiler performance.

[0003] Therefore, the development of an organic heat carrier furnace that can prolong the flue gas flow, improve heat transfer efficiency and have good safety performance is of great significance for meeting the heating needs of various industries and promoting energy conservation and emission reduction. Utility Model Content

[0004] The purpose of the present invention is to provide an organic heat carrier furnace that extends the flue gas flow, so as to solve the problem that the traditional boiler equipment proposed in the above background technology has certain limitations in the flue gas flow and heat energy transfer, which often leads to energy loss and low heat transfer efficiency.

[0005] To achieve the above-mentioned objectives, the utility model provides an organic heat carrier furnace for extending the flue gas flow, comprising a boiler body, a chain grate installed below the boiler body, a combustion chamber provided above the chain grate, a smoke exhaust pipe connected to one end of the boiler body, an inner coil, a middle coil and an outer coil installed inside the boiler body, the inner coil, middle coil and outer coil forming three flue gas return paths, and a ceiling pipe provided on the top inner wall of the boiler body.

[0006] Preferably, brackets are installed at the bottoms of both ends of the boiler body, and a base is installed at the bottom of the chain grate.

[0007] Preferably, a front arch is installed at the front of the combustion chamber, and a rear arch is installed at the rear.

[0008] Preferably, the inner side of the inner coil is the first return, the area between the inner coil and the middle coil is the second return, the area between the outer side of the middle coil and the inner side of the outer coil is the third return, and one end of the third return is connected to a smoke exhaust pipe.

[0009] Preferably, the bottom ends of the inner coil, middle coil and outer coil are collectively connected to the oil inlet manifold, and the top ends of the inner coil, middle coil and outer coil are collectively connected to the intermediate manifold.

[0010] Preferably, one end of the ceiling pipe is connected to the intermediate header, and the other end of the ceiling pipe is connected to the oil outlet header.

[0011] Preferably, a ladder is installed on one side of the boiler body.

[0012] Preferably, the inner coil and the ceiling pipe form a radiation heating surface, and the middle coil and the outer coil form a convection heating surface.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this extended flue gas flow organic heat carrier boiler, the boiler utilizes three flue gas return paths formed by the inner coil, middle coil, and outer coil, as well as the installation of a ceiling pipe, effectively extending the residence time of the flue gas in the boiler body, allowing the heat energy in the flue gas to be more fully utilized. This design not only improves the boiler's heat transfer efficiency but also reduces energy loss, thereby achieving the goal of energy conservation and emission reduction. The design of the oil inlet, intermediate, and outlet headers facilitates the entry and exit of the medium, facilitating sufficient heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the coil pipe in the utility model;

[0018] The meaning of each number in the figure is:

[0019] 1. Boiler body; 11. Inner coil; 12. Middle coil; 13. Outer coil; 14. Ceiling pipe; 15. Oil inlet header; 16. Middle header; 17. Oil outlet header; 18. Ladder; 2. Chain grate; 3. Bracket; 4. Front arch; 5. Base; 6. Rear arch; 7. Exhaust pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides an organic heat carrier furnace that prolongs the flue gas flow, such as Figure 1-Figure 3As shown, including the boiler body 1, the lower part of the boiler body 1 is installed with chain grate 2, the upper part of the chain grate 2 is provided with combustion chamber, one end of the boiler body 1 is connected with the exhaust pipe 7, the inside of the boiler body 1 is installed with inner coil pipe 11, middle coil pipe 12 and outer coil pipe 13, the inner coil pipe 11, middle coil pipe 12 and outer coil pipe 13 form three flue gas return, the top inner wall of the boiler body 1 is provided with ceiling pipe 14. By ingeniously designing and installing the inner coil pipe 11, middle coil pipe 12 and outer coil pipe 13 inside the boiler body 1, the three of them together constitute three flue gas return. This innovative design greatly prolongs the flow path of the flue gas in the boiler, so that the heat energy in the flue gas can be more fully and effectively utilized. At the same time, the ceiling pipe 14 provided on the top inner wall of the boiler body 1 further increases the contact area of the flue gas with the heating surface, improving the heat exchange efficiency.

[0022] In this embodiment, the two ends of the bottom of the boiler body 1 are installed with supports 3, and the bottom of the chain grate 2 is installed with a base 5, which facilitates the bottom support and fixation of the boiler body 1.

[0023] Specifically, the front part of the combustion chamber is installed with a front arch 4, and the rear part is installed with a rear arch 6, which facilitates the fuel combustion in the combustion chamber.

[0024] Further, the inner side of the inner coil pipe 11 is the first return, the second return is between the inner coil pipe 11 and the middle coil pipe 12, and the third return is between the outer side of the middle coil pipe 12 and the inner side of the outer coil pipe 13, one end of the third return is connected with the exhaust pipe 7. This design realizes the multi-stage and orderly flow of flue gas in the boiler. This design not only prolongs the residence time of flue gas, but also ensures that the heat energy in the flue gas can be gradually and fully transferred to each heating surface, thereby improving the overall thermal efficiency of the boiler.

[0025] Further, the bottom end of the inner coil pipe 11, middle coil pipe 12 and outer coil pipe 13 is connected to the oil inlet header 15, and the top end of the inner coil pipe 11, middle coil pipe 12 and outer coil pipe 13 is connected to the intermediate header 16. Such design facilitates the centralized supply and recovery of heat carriers, and also simplifies the piping system of the boiler, improves the reliability and maintainability of the system. In addition, this connection method helps to balance the flow of heat carriers in each coil, ensuring uniform heating of the boiler.

[0026] Further, one end of the ceiling pipe 14 is connected to the intermediate header 16, and the other end of the ceiling pipe 14 is connected to the oil outlet header 17. Such design enables the ceiling pipe to effectively absorb the remaining heat energy in the flue gas and transfer it to the heat carrier. This not only improves the heat transfer efficiency of the boiler, but also reduces the heat energy loss of the flue gas, further improving the energy utilization efficiency of the boiler.

[0027] Further, a staircase 18 is installed on one side of the boiler body 1. It is convenient for manual maintenance

[0028] Further, the inner coil 11 and the ceiling pipe form the radiant heating surface, and the middle coil 12 and the outer coil 13 form the convective heating surface. This design fully utilizes the heat transfer characteristics of different heating surfaces, realizes the staged and efficient utilization of flue gas heat energy, and further improves the heat transfer efficiency and energy utilization efficiency of the boiler.

[0029] The organic heat carrier furnace with extended flue gas process of the utility model in use, first, the fuel is combusted on the chain grate 2, producing high-temperature flue gas. After these flue gases are fully combusted in the combustion chamber, they enter the inside of the boiler body 1, starting their journey of extended process.

[0030] The flue gas first enters the inside of the inner coil 11, forming the first return. Here, the flue gas exchanges heat with the inner coil 11, transferring part of its heat energy to the heat carrier. Subsequently, the flue gas continues to flow into the space between the inner coil 11 and the middle coil 12, forming the second return. In the second return, the flue gas continues to exchange heat with the middle coil 12, further transferring heat energy.

[0031] Then, the flue gas flows between the outside of the middle coil 12 and the inside of the outer coil 13, forming the third return. In the third return, the flue gas exchanges heat with the outer coil 13 for the last time, ensuring that the heat energy therein is fully utilized. Finally, the flue gas is discharged from the boiler body 1 through the exhaust gas pipe 7.

[0032] Throughout the flue gas process, the ceiling pipe 14 also plays an important role. It is located on the inner wall of the top of the boiler body 1, fully contacts with the flue gas, further absorbs the remaining heat energy in the flue gas, and transfers it to the heat carrier. In this way, the ceiling pipe 14 not only improves the heat transfer efficiency of the boiler, but also reduces the heat energy loss of the flue gas

[0033] In addition, the bottom end of the inner coil 11, the middle coil 12, and the outer coil 13 are all connected to the oil inlet header 15, while the top end is connected to the intermediate header 16. This design facilitates the centralized supply and recovery of heat carriers, and also simplifies the piping system of the boiler. The heat carrier circulates inside the boiler, constantly absorbing heat energy from the flue gas and transferring it to the equipment or system that needs to be heated.

[0034] Finally, a staircase 18 is installed on one side of the boiler body 1, facilitating the daily inspection, maintenance, and cleaning work of the operators. Through the staircase 18, the operators can conveniently enter the inside of the boiler to inspect and repair each component, ensuring the safe operation of the boiler.

[0035] Finally, it should be noted that the chain grate 2 and other components in this embodiment, the electronic components in the above components are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle area of ​​this device, all the above electrical components are connected by wires respectively. The specific connection means should refer to the working sequence between the electrical components in the above working principle to complete the electrical connection, which are all well-known technologies in the art.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An organic heat carrier furnace for extending the flue gas flow, comprising a boiler body (1), characterized in that: A chain grate (2) is installed below the boiler body (1), a combustion chamber is provided above the chain grate (2), one end of the boiler body (1) is connected to a smoke exhaust pipe (7), an inner coil (11), a middle coil (12) and an outer coil (13) are installed inside the boiler body (1), the inner coil (11), the middle coil (12) and the outer coil (13) forming three smoke return paths, and a ceiling pipe (14) is provided on the top inner wall of the boiler body (1).

2. The organic heat carrier furnace for extending the flue gas flow according to claim 1 is characterized in that: Brackets (3) are installed at the bottoms of both ends of the boiler body (1), and a base (5) is installed at the bottom of the chain grate (2).

3. The organic heat carrier furnace for extending the flue gas flow according to claim 1, characterized in that: The front portion of the combustion chamber is provided with a front arch (4), and the rear portion is provided with a rear arch (6).

4. The organic heat carrier furnace for extending the flue gas flow according to claim 1 is characterized in that: The inner side of the inner coil (11) is the first return, the inner coil (11) and the middle coil (12) are the second return, the outer side of the middle coil (12) and the inner side of the outer coil (13) are the third return, and one end of the third return is connected to the smoke exhaust pipe (7).

5. The organic heat carrier furnace for extending the flue gas flow according to claim 1 is characterized in that: The bottom ends of the inner coil (11), the middle coil (12) and the outer coil (13) are collectively connected to the oil inlet manifold (15), and the top ends of the inner coil (11), the middle coil (12) and the outer coil (13) are collectively connected to the intermediate manifold (16).

6. The organic heat carrier furnace for extending the flue gas flow according to claim 5, characterized in that: One end of the ceiling pipe (14) is connected to the intermediate header (16), and the other end of the ceiling pipe (14) is connected to the oil outlet header (17).

7. The organic heat carrier furnace for extending the flue gas flow according to claim 1, characterized in that: A ladder (18) is installed on one side of the boiler body (1).

8. The organic heat carrier furnace for extending the flue gas flow according to claim 1, characterized in that: The inner coil (11) and the ceiling pipe form a radiation heating surface, and the middle coil (12) and the outer coil (13) form a convection heating surface.

Images