Boiler heat energy circulation structure

By designing a thermal energy circulation structure in the boiler, using the deflector, thermal strip and protective mesh plate, the problems of waste of high-temperature flue gas and high energy consumption of air preheating are solved, and efficient recycling of heat energy and energy-saving and environmentally friendly effects of the equipment are achieved.

CN222670061UActive Publication Date: 2025-03-25龙游县金怡热电有限公司
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Patent Information

Application Number
CN202420908265.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-29
Publication Date
2025-03-25
Estimated Expiration
2034-04-29

AI Technical Summary

Technical Problem

During the use of existing boilers, the heat energy contained in high-temperature flue gas is difficult to fully utilize, resulting in waste. At the same time, the initial temperature of the air entering the boiler is low, and it requires a lot of energy to heat up, which lacks energy-saving and environmentally friendly solutions.

Method used

A boiler thermal energy circulation structure is designed, including a shell and a heat exchange tube. The high-temperature flue gas is directed through the deflector, so that it circulates in a spiral shape and extends the circulation time; the heat conduction effect of the heat exchange tube is improved by using the heat conduction outer strip and the heat conduction inner strip to achieve efficient heat absorption and heat dissipation; at the same time, the staff is protected by protective mesh plates to avoid scalds in the limbs.

Benefits of technology

Through the thermal energy circulation structure, the initial temperature of the air is increased, the energy consumption of the boiler is reduced, the effective utilization of thermal energy in high-temperature flue gas is achieved, the energy-saving and environmentally friendly performance of the equipment is enhanced, and the safety of staff is ensured.

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Abstract

The utility model provides a boiler heat energy circulation structure, which relates to the technical field of boilers and comprises a shell and a heat exchange tube. Two supporting seats are arranged at the bottom of the shell, a flow guide plate is installed in the shell, the right end of the shell is connected with a right pore plate, the exterior of the right pore plate is connected with a right connecting cover, and a right connecting hole is formed in the right pore plate; the left end of the shell is connected with a left pore plate, the exterior of the left pore plate is connected with a left connecting cover, and a left connecting hole is formed in the left pore plate; the right end of the heat exchange tube is connected into a right connecting hole formed in the right pore plate, and the left end of the heat exchange tube is connected into a left connecting hole formed in the left pore plate; and the outer part of the shell is connected with a protective screen plate. When high-temperature flue gas exhausted by the boiler enters the shell, the heat exchange tube in the shell is heated through the high-temperature flue gas, and when air passes through the interior of the heat exchange tube, the air entering the boiler is preheated through the heat exchange tube, so that the initial temperature of the air is increased, the energy consumption of the boiler is reduced, and the effect of cyclic utilization of heat energy is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler heat energy circulation structure. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in the fuel. The boiler outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy. The original meaning of pot refers to a water container heated on fire, and furnace refers to a place where fuel is burned. The boiler consists of two major parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, and can also be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator.

[0003] During the use of existing boilers, the high-temperature flue gas they emit contains a lot of heat energy, which is difficult to fully utilize and will cause waste. In addition, since the air entering the boiler has a low initial temperature, it takes a lot of energy to heat up, which is not energy-saving and environmentally friendly. Utility Model Content

[0004] The present disclosure relates to a boiler heat energy circulation structure, which solves the problems that during the use of existing boilers, the high-temperature flue gas discharged by the boiler contains a lot of heat energy, which is difficult to fully utilize and causes waste, and the air entering the boiler has a low initial temperature, so it takes a lot of energy to heat up, which is not energy-saving and environmentally friendly.

[0005] In a first aspect of the present disclosure, a boiler thermal energy circulation structure is provided, which specifically includes: a shell and a heat exchange tube; two support seats are provided at the bottom of the shell, a guide plate is installed inside the shell, the right end of the shell is connected to a right orifice plate, the outside of the right orifice plate is connected to a right connecting cover, and the right orifice plate is provided with a right connecting hole inside; the left end of the shell is connected to a left orifice plate, the outside of the left orifice plate is connected to a left connecting cover, and the inside of the left orifice plate is provided with a left connecting hole; the right end of the heat exchange tube is connected to the right connecting hole provided in the right orifice plate, and the left end of the heat exchange tube is connected to the left connecting hole provided in the left orifice plate; the outside of the shell is connected to a protective mesh plate.

[0006] Furthermore, a smoke inlet is provided on one side of the shell exterior, and a smoke outlet is provided on the other side of the shell exterior. The smoke inlet is connected to the smoke exhaust port of the boiler, and the smoke outlet is connected to the smoke exhaust pipeline.

[0007] Furthermore, an air inlet is provided at one end of the right connecting cover, which is connected to the outside world. One end of the heat exchange tube is connected to the right connecting cover through the right orifice plate. An air outlet is provided at one end of the left connecting cover, which is connected to the air inlet of the boiler.

[0008] Furthermore, the heat exchange tubes are arranged in the shell. When the high-temperature flue gas discharged from the boiler enters the shell, the heat exchange tubes inside the shell are heated by the high-temperature flue gas. When the air passes through the heat exchange tubes, the air entering the boiler is preheated by the heat exchange tubes.

[0009] Furthermore, the outer side of the heat exchange tube is provided with a heat-conducting outer strip in a spiral shape, and the inner side of the heat exchange tube is provided with a heat-conducting inner strip in a spiral shape. The heat-conducting inner strip is straight, and the heat-absorbing area of ​​the outer side of the heat exchange tube is increased by the heat-conducting outer strip, and the heat-dissipating area of ​​the inner side of the heat exchange tube is increased by the heat-conducting inner strip, thereby improving the heat conduction effect of the heat exchange tube itself.

[0010] Furthermore, the guide plate is spiral-shaped, the outer periphery of the guide plate is connected to the inner wall of the shell, a through hole is provided inside the guide plate, and the heat exchange tube passes through the through hole provided in the guide plate. The high-temperature flue gas is guided by the guide plate, so that the high-temperature flue gas flows in a spiral shape inside the shell, thereby extending the circulation time of the high-temperature flue gas inside the shell.

[0011] Furthermore, the protective mesh plate is hollow, and a connecting rod is provided on the inner side of the protective mesh plate. The protective mesh plate is connected to the shell through the connecting rod. The outer wall of the shell is isolated by the protective mesh plate, thereby providing protection for the staff.

[0012] The utility model provides a boiler heat energy circulation structure, which has the following beneficial effects:

[0013] When the utility model is in use, when the high-temperature flue gas discharged by the boiler enters the interior of the shell, the high-temperature flue gas heats the heat exchange tubes inside the shell, and when the air passes through the inside of the heat exchange tubes, the air entering the boiler is preheated by the heat exchange tubes, thereby increasing the initial temperature of the air, reducing the energy consumption of the boiler, and achieving the effect of heat energy recycling; the heat absorption area on the outside of the heat exchange tube is increased by the heat-conducting outer strips to achieve efficient heat absorption, and the heat dissipation area on the inside of the heat exchange tube is increased by the heat-conducting inner strips to achieve efficient heat dissipation, thereby improving the heat conduction effect of the heat exchange tube itself and ensuring the preheating effect of the air entering the boiler.

[0014] In addition, the high-temperature flue gas is guided by the guide plate, so that it flows in a spiral shape inside the shell, extending the circulation time of the high-temperature flue gas inside the shell. The heat exchange tube can fully absorb the heat energy contained in the high-temperature flue gas to ensure the efficient utilization of heat energy; and the outer wall of the shell is isolated by the protective mesh plate to protect the staff and effectively prevent the staff from touching the outer wall of the shell and causing scalding of the limbs.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial side structure schematic diagram of the present application is shown;

[0020] Figure 2 A schematic diagram of the housing shaft side structure of the present application is shown;

[0021] Figure 3 A schematic diagram of the internal cross-sectional structure of the housing of the present application is shown;

[0022] Figure 4 The schematic diagram of the split structure of the right orifice plate, the left orifice plate and the heat exchange tube of the present application is shown;

[0023] Figure 5 A schematic diagram of the axial structure of the heat exchange tube of the present application is shown.

[0024] Reference numerals list

[0025] 1. Shell; 101. Support seat; 102. Smoke inlet; 103. Smoke outlet; 2. Guide plate; 201. Through hole; 3. Right orifice plate; 301. Right connecting hole; 4. Left orifice plate; 401. Left connecting hole; 5. Heat exchange tube; 501. Heat conductive outer strip; 502. Heat conductive inner strip; 6. Right connecting cover; 601. Air inlet; 7. Left connecting cover; 701. Air outlet; 8. Protective mesh plate; 801. Connecting rod. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1: Please refer to Figures 1 to 5 :

[0028] The utility model proposes a boiler heat energy circulation structure, comprising: a shell 1 and a heat exchange tube 5; two support seats 101 are arranged at the bottom of the shell 1, a guide plate 2 is installed inside the shell 1, a right orifice plate 3 is connected to the right end of the shell 1, a right connecting cover 6 is connected to the outside of the right orifice plate 3, and a right connecting hole 301 is arranged inside the right orifice plate 3; a left orifice plate 4 is connected to the left end of the shell 1, a left connecting cover 7 is connected to the outside of the left orifice plate 4, and a left connecting hole 401 is arranged inside the left orifice plate 4; the right end of the heat exchange tube 5 is connected to the right connecting hole 301 provided on the right orifice plate 3, and the left end of the heat exchange tube 5 is connected to the left connecting hole 401 provided on the left orifice plate 4; a protective mesh plate 8 is connected to the outside of the shell 1; a smoke inlet 102 is arranged on one side of the outside of the shell 1, and a smoke outlet is arranged on the other side of the outside of the shell 1 The smoke inlet 102 is connected with the smoke exhaust port of the boiler, and the smoke outlet 103 is connected with the smoke exhaust pipe; an air inlet 601 is provided at one end of the right connecting cover 6, and the air inlet 601 is connected with the outside world, one end of the heat exchange tube 5 is connected with the right connecting cover 6 through the right orifice plate 3, and an air outlet 701 is provided at one end of the left connecting cover 7, and the air outlet 701 is connected with the air inlet of the boiler; the heat exchange tubes 5 are arranged in the shell 1. When the high-temperature flue gas discharged by the boiler enters the inside of the shell 1, the heat exchange tubes 5 inside the shell 1 are heated by the high-temperature flue gas. When the air passes through the inside of the heat exchange tubes 5, the air entering the boiler is preheated by the heat exchange tubes 5, so as to increase the initial temperature of the air, reduce the energy consumption of the boiler, and achieve the effect of heat energy recycling.

[0029] In the disclosed embodiment, a heat-conducting outer strip 501 is provided in a circumferential shape on the outer side of the heat exchange tube 5, and the heat-conducting outer strip 501 is spirally shaped. A heat-conducting inner strip 502 is provided in a circumferential shape on the inner side of the heat exchange tube 5, and the heat-conducting inner strip 502 is straight. By adopting the above technical scheme, the heat-absorbing area of ​​the outer side of the heat exchange tube 5 is increased by the heat-conducting outer strip 501 to achieve efficient heat absorption, and the heat-dissipating area of ​​the inner side of the heat exchange tube 5 is increased by the heat-conducting inner strip 502 to achieve efficient heat dissipation, thereby improving the heat conduction effect of the heat exchange tube 5 itself and ensuring the preheating effect of the air entering the boiler.

[0030] In the disclosed embodiment, the guide plate 2 is spiral-shaped, the outer periphery of the guide plate 2 is connected to the inner wall of the shell 1, a through hole 201 is provided inside the guide plate 2, and the heat exchange tube 5 passes through the through hole 201 provided on the guide plate 2; by adopting the above-mentioned technical scheme, the high-temperature flue gas is guided by the guide plate 2, so that the high-temperature flue gas flows in a spiral shape inside the shell 1, thereby extending the circulation time of the high-temperature flue gas inside the shell 1, and the heat exchange tube 5 can fully absorb the heat energy contained in the high-temperature flue gas, thereby ensuring the efficient utilization of heat energy.

[0031] Embodiment 2, on the basis of embodiment 1, the protective mesh plate 8 is hollowed out, a connecting rod 801 is provided inside the protective mesh plate 8, and the protective mesh plate 8 is connected to the housing 1 through the connecting rod 801;

[0032] By adopting the above technical solution, the outer wall of the shell 1 is isolated by the protective mesh plate 8, which plays a protective effect on the staff and effectively prevents the staff from touching the outer wall of the shell 1 and causing scalding of the limbs.

[0033] The working principle of this embodiment is as follows: the high-temperature flue gas discharged by the boiler enters the shell 1 through the smoke inlet 102, and the high-temperature flue gas is guided by the guide plate 2, so that the high-temperature flue gas circulates in the shell 1 in a spiral shape, prolonging the circulation time of the high-temperature flue gas in the shell 1, and the heat exchange tube 5 inside the shell 1 is heated by the high-temperature flue gas, so that the heat exchange tube 5 can fully absorb the heat energy contained in the high-temperature flue gas; the outside air enters the heat exchange tube 5 through the right connecting cover 6, and then enters the boiler through the left connecting cover 7. When the air passes through the heat exchange tube 5, the air entering the boiler is preheated by the heat exchange tube 5 to increase the initial air temperature and reduce the energy consumption of the boiler; the heat absorption area on the outside of the heat exchange tube 5 is increased by the heat-conducting outer strip 501 to achieve efficient heat absorption, and the heat dissipation area on the inside of the heat exchange tube 5 is increased by the heat-conducting inner strip 502 to achieve efficient heat dissipation and improve the heat conduction effect of the heat exchange tube 5 itself; the outer wall of the shell 1 is isolated by the protective mesh plate 8 to protect the staff and avoid limb burns.

[0034] In this article, there are a few points to note:

[0035] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0036] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0037] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A boiler heat energy circulation structure, characterized in that: include: A shell (1) and a heat exchange tube (5); two support seats (101) are provided at the bottom of the shell (1); a guide plate (2) is installed inside the shell (1); the right end of the shell (1) is connected to a right orifice plate (3); the right orifice plate (3) is externally connected to a right connecting cover (6); and the right orifice plate (3) is internally provided with a right connecting hole (301); the left end of the shell (1) is connected to a left orifice plate (4); the left orifice plate (4) is externally connected to a left connecting cover (7); and the left orifice plate (4) is internally provided with a left connecting hole (401); the right end of the heat exchange tube (5) is connected to the right connecting hole (301) provided on the right orifice plate (3); and the left end of the heat exchange tube (5) is connected to the left connecting hole (401) provided on the left orifice plate (4); and the shell (1) is externally connected to a protective mesh plate (8).

2. A boiler heat energy circulation structure according to claim 1, characterized in that: A smoke inlet (102) is provided on one side of the exterior of the shell (1), and a smoke outlet (103) is provided on the other side of the exterior of the shell (1); the smoke inlet (102) is connected to a smoke outlet of the boiler, and the smoke outlet (103) is connected to a smoke exhaust pipeline.

3. A boiler heat energy circulation structure according to claim 1, characterized in that: The right connecting cover (6) is provided with an air inlet (601) at one end, and the air inlet (601) is connected to the outside. One end of the heat exchange tube (5) is connected to the right connecting cover (6) through the right perforated plate (3). The left connecting cover (7) is provided with an air outlet (701) at one end, and the air outlet (701) is connected to the air inlet of the boiler.

4. A boiler heat energy circulation structure according to claim 1, characterized in that: The heat exchange tubes (5) are arranged in an array inside the shell (1).

5. A boiler heat energy circulation structure according to claim 1, characterized in that: The heat exchange tube (5) is provided with an outer heat-conducting strip (501) in a circumferential shape on the outside, and the outer heat-conducting strip (501) is spiral-shaped. The heat exchange tube (5) is provided with an inner heat-conducting strip (502) in a circumferential shape on the inside, and the inner heat-conducting strip (502) is straight.

6. A boiler heat energy circulation structure according to claim 1, characterized in that: The guide plate (2) is spiral-shaped, the outer periphery of the guide plate (2) is connected to the inner wall of the shell (1), a through hole (201) is provided inside the guide plate (2), and the heat exchange tube (5) passes through the through hole (201) provided on the guide plate (2).

7. A boiler heat energy circulation structure according to claim 1, characterized in that: The protective mesh plate (8) is hollowed out, a connecting rod (801) is provided on the inner side of the protective mesh plate (8), and the protective mesh plate (8) is connected to the housing (1) via the connecting rod (801).