Flue gas heat energy recycling device for boiler burner

Abstract

The utility model relates to a flue gas heat energy recycling device for a boiler burner, which belongs to the technical field of boilers, and comprises a heat return box, a heat exchange treatment mechanism is arranged in the heat return box, the heat exchange treatment mechanism comprises a partition plate fixedly connected in the heat return box, and the top of the partition plate is fixedly connected with a transmission box. The left side of the heat return box is fixedly connected with a smoke pipe, and the right side of the heat return box is fixedly connected with a gas guide pipe extending to the conveying box. According to the flue gas heat energy recycling device for the boiler burner, flue gas after heat exchange can enter the transmission box along the gas guide pipe, so that the flue gas can be conveniently matched with opening and closing adjustment of the exhaust pipe and the water supplementing pipe on the transmission box, and the effect of adjusting the air pressure in the transmission box is achieved; and liquid entering the conveying box is pushed into the heat exchange calandria through reciprocating operation of the movable piston, so that the liquid in the heat exchange calandria continuously flows, the liquid conveying efficiency is effectively improved, the heat energy recycling efficiency is improved, and the practical effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a flue gas heat energy recycling device for a boiler burner. Background Art

[0002] A boiler is an energy conversion device. The energy input to 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. In summary, when the boiler burns the combustible material, flue gas will be generated. The flue gas will be discharged directly, but the flue gas contains heat. At the same time, in order to increase the utilization rate of the heat in the flue gas, a recovery device is needed to recycle the heat energy generated during boiler combustion.

[0003] A boiler flue gas heat energy recovery and recycling device is proposed in a patent document with announcement number CN220083103U, including a flue gas transmission box, a flue gas circulation pipe is fixedly connected to the left side of the flue gas transmission box, a liquid discharge pipe is fixedly connected to the right side of the flue gas transmission box, and a partition plate is fixedly connected to the inside of the flue gas transmission box...; the patent is installed inside the flue gas transmission box through a liquid absorption pipe, and the partition plate and the corner limiting plate clamp and limit the front and rear ends and left and right ends of the liquid absorption pipe respectively, that is, when the position of the liquid absorption pipe is limited inside the flue gas transmission box, the stability of the liquid absorption pipe when the position is limited is increased, and when the flue gas passes through the inside of the flue gas transmission box, the flue gas can heat the inside of the liquid absorption pipe, that is, after the liquid circulates inside the liquid absorption pipe, the utilization rate of the flue gas thermal energy can be increased.

[0004] However, although the above patent can utilize the flow of flue gas to drive the flow of liquid in the pipeline, a multiple transmission structure is set between the first blade and the second blade, which reduces the power generated by the flue gas flow, resulting in poor transmission effect between the first blade and the second blade, resulting in a slower liquid flow rate, and low transmission efficiency of liquid transmission through blade rotation, resulting in poor use effect. In view of this, the present application proposes a flue gas heat energy recycling device for a boiler burner. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a flue gas heat energy recycling device for a boiler burner, which utilizes the reciprocating operation of a moving piston to push the liquid entering the transmission box into the heat exchange exhaust pipe, thereby allowing the liquid in the heat exchange exhaust pipe to flow continuously, effectively improving the liquid transmission efficiency, enhancing the heat energy recovery efficiency, and improving the practical effect of the device. It solves the problems in the prior art of flue gas heat energy recycling devices, such as poor utilization of the power generated by the flue gas flow, low transmission efficiency of liquid transmission, and poor use effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas heat energy recycling device for a boiler burner, comprising a regenerator, wherein a heat exchange treatment mechanism is arranged inside the regenerator;

[0007] The heat exchange treatment mechanism comprises a partition fixedly connected inside the reheat box, a transmission box is fixedly connected to the top of the partition, a smoke pipe is fixedly connected to the left side of the reheat box, an air guide pipe extending to the transmission box is fixedly connected to the right side of the reheat box, a movable piston is slidably connected inside the transmission box, and a guide assembly for guiding the movement of the movable piston is arranged inside the transmission box;

[0008] The interior of the reheat box is fixedly connected with a heat exchange exhaust pipe, the left side of the transmission box is fixedly connected with a water pipe connected with the heat exchange exhaust pipe, the top of the transmission box is fixedly connected with an exhaust pipe and a water supply pipe, the top of the reheat box is fixedly connected with a water storage tank connected with the water supply pipe, and the top of the transmission box is provided with an adjustment component for adjusting the opening and closing of the exhaust pipe and the water supply pipe.

[0009] Furthermore, an air collecting hood in communication with the air guide pipe is fixedly connected to the interior of the reheat box, and a flow equalizing plate corresponding to the position of the smoke pipe is fixedly connected to the interior of the reheat box.

[0010] Furthermore, the guide assembly includes a limit rod fixedly connected to the inside of the transmission box and slidably connected to the moving piston, and an extrusion spring fixedly connected to the left side of the moving piston is sleeved on the outer side of the limit rod.

[0011] Furthermore, one end of the heat exchange exhaust pipe away from the water guide pipe is fixedly connected to a drain pipe, and a one-way valve is fixedly connected inside the drain pipe.

[0012] Furthermore, the adjustment component includes a position sensor fixedly connected to the top wall of the transmission box, the top of the transmission box is fixedly connected to a mounting frame, the interior of the mounting frame is fixedly connected to two drive motors, and the output end of the drive motor is fixedly connected to a transmission gear.

[0013] Furthermore, the interior of the installation frame is slidably connected to an air blocking tooth plate extending to the exhaust pipe, and the interior of the installation frame is slidably connected to a water cutting tooth plate extending into the water supply pipe, and the two transmission gears are respectively engaged with the air blocking tooth plate and the water cutting tooth plate.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The flue gas heat energy recycling device for the boiler burner is capable of exchanging heat between the flue gas entering the heat recovery box and the liquid in the heat exchange exhaust pipe, so as to improve the thermal energy utilization rate. After the heat exchange is completed, the flue gas can enter the transmission box along the air guide pipe, thereby facilitating the increase of the air pressure on the right side of the transmission box to push the movable piston to the left, so that the movable piston can use the water guide pipe to push the liquid on the left side of the movable piston into the heat exchange exhaust pipe, thereby making the liquid in the heat exchange exhaust pipe flow. In combination with the opening and closing adjustment of the exhaust pipe and the water supply pipe on the transmission box, the movable piston can reciprocate in the transmission box, so as to make the liquid in the heat exchange exhaust pipe flow continuously, improve the liquid transmission efficiency, and further enhance the thermal energy recovery efficiency, thereby effectively improving the practical effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The structural diagram at A in the middle;

[0018] Figure 3 It is a side sectional view of the installation frame of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the heat recovery box of the utility model.

[0020] In the figure: 1. heat recovery box; 2. partition; 3. transmission box; 4. water guide pipe; 5. heat exchange exhaust pipe; 6. drainage pipe; 7. water storage tank; 8. flue gas pipe; 9. flow equalizing plate; 10. air collecting hood; 11. air guide pipe; 12. limit rod; 1201, extrusion spring; 13. moving piston; 14. position sensor; 15. driving motor; 16. transmission gear; 17. water cut-off tooth plate; 18. air blocking tooth plate; 19. installation frame; 20. exhaust pipe; 21. water supply pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] See also Figure 1-4 A flue gas heat energy recycling device for a boiler burner in this embodiment includes a regenerator 1, and a heat exchange processing mechanism is arranged inside the regenerator 1.

[0023] In this embodiment, the heat exchange treatment mechanism includes a partition 2 fixedly connected to the inside of the heat recovery box 1, a transmission box 3 is fixedly connected to the top of the partition 2, a smoke pipe 8 is fixedly connected to the left side of the heat recovery box 1, and a flow equalizing plate 9 corresponding to the position of the smoke pipe 8 is fixedly connected to the inside of the heat recovery box 1. The flow equalizing plate 9 is conveniently used to make the smoke flow evenly and stably to the right under the partition 2, and an air guide pipe 11 extending to the transmission box 3 is fixedly connected to the right side of the heat recovery box 1.

[0024] Among them, the interior of the reheat box 1 is fixedly connected with an air collecting hood 10 connected to the air duct 11, so that the smoke can flow into the air duct 11 through the air collecting hood 10, and the interior of the transmission box 3 is slidably connected with a movable piston 13, and the interior of the transmission box 3 is provided with a guide component for guiding the movement of the movable piston 13.

[0025] In this embodiment, the guide assembly includes a limiting rod 12 fixedly connected to the inside of the transmission box 3 and slidably connected to the moving piston 13. The outer side of the limiting rod 12 is provided with an extrusion spring 1201 fixedly connected to the left side of the moving piston 13. The limiting rod 12 is conveniently used to improve the activity stability of the moving piston 13, and the extrusion spring 1201 can enable the moving piston 13 to move to the right when no external force is applied.

[0026] Among them, a heat exchange exhaust pipe 5 is fixedly connected to the inside of the heat recovery box 1, a water pipe 4 connected to the heat exchange exhaust pipe 5 is fixedly connected to the left side of the transmission box 3, and a drain pipe 6 is fixedly connected to the end of the heat exchange exhaust pipe 5 away from the water pipe 4. A one-way valve is fixedly connected to the inside of the drain pipe 6, which makes it convenient to use the drain pipe 6 to discharge the liquid that has undergone heat exchange, which is convenient for subsequent use, and the one-way valve can prevent the liquid from flowing in the opposite direction.

[0027] Among them, the top of the transmission box 3 is fixedly connected with an exhaust pipe 20 and a water supply pipe 21, and the top of the reheat box 1 is fixedly connected with a water storage tank 7 connected with the water supply pipe 21, so that the exhaust pipe 20 can be used to reduce the pressure of the transmission box 3, and the water supply pipe 21 can be used to supply water to the transmission box 3. An adjusting component for adjusting the opening and closing of the exhaust pipe 20 and the water supply pipe 21 is provided on the top of the transmission box 3.

[0028] In this embodiment, the adjustment component includes a position sensor 14 fixedly connected to the top wall of the transmission box 3, and the top of the transmission box 3 is fixedly connected to a mounting frame 19, and two driving motors 15 are fixedly connected inside the mounting frame 19, and the output end of the driving motor 15 is fixedly connected to a transmission gear 16. The inside of the mounting frame 19 is slidably connected to an air blocking tooth plate 18 extending to the exhaust pipe 20, and the inside of the mounting frame 19 is slidably connected to a water cut-off tooth plate 17 extending into the water supply pipe 21. The two transmission gears 16 are respectively meshed with the air blocking tooth plate 18 and the water cut-off tooth plate 17, so that the air blocking tooth plate 18 and the water cut-off tooth plate 17 can move in the exhaust pipe 20 and the water supply pipe 21 as the transmission gear 16 rotates.

[0029] The beneficial effects of the above embodiments are:

[0030] In the flue gas heat energy recycling device for the boiler burner, the flue gas entering the heat recovery box 1 can exchange heat with the liquid in the heat exchange exhaust pipe 5 to improve the thermal energy utilization rate. The flue gas after the heat exchange can enter the transmission box 3 along the air guide pipe 11, thereby facilitating the increase of the air pressure on the right side of the transmission box 3 to push the movable piston 13 to move to the left, so that the movable piston 13 uses the water guide pipe 4 to push the liquid on the left side of the movable piston 13 into the heat exchange exhaust pipe 5, thereby making the liquid in the heat exchange exhaust pipe 5 flow. In conjunction with the opening and closing adjustment of the exhaust pipe 20 and the water supply pipe 21 on the transmission box 3, the movable piston 13 can reciprocate in the transmission box 3 to make the liquid in the heat exchange exhaust pipe 5 flow continuously, thereby improving the liquid transmission efficiency, thereby enhancing the thermal energy recovery efficiency, and effectively improving the practical effect of the device.

[0031] The working principle of the above embodiment is:

[0032] The flue gas heat energy recycling device for the boiler burner, when in use, the flue gas entering the reheat box 1 from the flue gas pipe 8 can exchange heat with the liquid in the heat exchange exhaust pipe 5, so as to improve the utilization rate of heat energy, and the flue gas after heat exchange can flow to the transmission box 3 through the gas collecting hood 10 and the air guide pipe 11, so as to facilitate the increase of the air pressure on the right side of the transmission box 3 to push the movable piston 13 to move to the left when the exhaust pipe 20 and the water supply pipe 21 are closed, and then the liquid on the left side of the movable piston 13 is pushed into the heat exchange exhaust pipe 5, so that the liquid in the heat exchange exhaust pipe 5 flows;

[0033] When the mobile piston 13 moves to the position sensor 14, the driving motor 15 on the right side can be operated to make the transmission gear 16 drive the air blocking tooth plate 18 to move in the exhaust pipe 20, so as to discharge the smoke on the right side of the mobile piston 13, so that the mobile piston 13 can move to the right under the push of the extrusion spring 1201. When the mobile piston 13 moves to the right side of the water supply pipe 21, the liquid in the water tank 7 can also flow to the transmission box 3 through the water supply pipe 21, so as to realize the water supply of the transmission box 3; and then the reciprocating movement of the mobile piston 13 in the transmission box 3 is conveniently utilized to make the liquid in the heat exchange exhaust pipe 5 flow continuously, thereby improving the liquid transmission efficiency, thereby enhancing the recovery and utilization efficiency of heat energy, and effectively improving the practical effect of the device.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flue gas heat energy recycling device for a boiler burner, comprising a regenerator (1), characterized in that: A heat exchange processing mechanism is arranged inside the regenerative box (1); The heat exchange treatment mechanism comprises a partition (2) fixedly connected inside a heat recovery box (1), a transmission box (3) fixedly connected to the top of the partition (2), a smoke pipe (8) fixedly connected to the left side of the heat recovery box (1), an air guide pipe (11) extending to the transmission box (3) fixedly connected to the right side of the heat recovery box (1), a movable piston (13) slidably connected inside the transmission box (3), and a guide assembly for guiding the movement of the movable piston (13) is arranged inside the transmission box (3); The interior of the reheat box (1) is fixedly connected with a heat exchange exhaust pipe (5); the left side of the transmission box (3) is fixedly connected with a water pipe (4) connected to the heat exchange exhaust pipe (5); the top of the transmission box (3) is fixedly connected with an exhaust pipe (20) and a water supply pipe (21); the top of the reheat box (1) is fixedly connected with a water storage tank (7) connected to the water supply pipe (21); and the top of the transmission box (3) is provided with an adjustment component for adjusting the opening and closing of the exhaust pipe (20) and the water supply pipe (21).

2. The flue gas heat energy recycling device for a boiler burner according to claim 1, characterized in that: The interior of the reheat box (1) is fixedly connected to an air collecting hood (10) in communication with an air guide pipe (11), and the interior of the reheat box (1) is fixedly connected to a flow equalizing plate (9) corresponding to the position of the smoke pipe (8).

3. The flue gas heat energy recycling device for a boiler burner according to claim 1, characterized in that: The guide assembly comprises a limit rod (12) fixedly connected to the inside of the transmission box (3) and slidably connected to the moving piston (13), and an extrusion spring (1201) fixedly connected to the left side of the moving piston (13) is sleeved on the outer side of the limit rod (12).

4. The flue gas heat energy recycling device for a boiler burner according to claim 1, characterized in that: One end of the heat exchange exhaust pipe (5) away from the water pipe (4) is fixedly connected to a drain pipe (6), and a one-way valve is fixedly connected inside the drain pipe (6).

5. The flue gas heat energy recycling device for a boiler burner according to claim 1, characterized in that: The adjustment component comprises a position sensor (14) fixedly connected to the inner top wall of the transmission box (3); the top of the transmission box (3) is fixedly connected to a mounting frame (19); two drive motors (15) are fixedly connected inside the mounting frame (19); and the output end of the drive motor (15) is fixedly connected to a transmission gear (16).

6. The device for recycling heat energy of flue gas for boiler burner according to claim 5, characterized in that: The interior of the installation frame (19) is slidably connected to an air blocking tooth plate (18) extending to the exhaust pipe (20), and the interior of the installation frame (19) is slidably connected to a water cutting tooth plate (17) extending into the water supply pipe (21), and the two transmission gears (16) are respectively meshed with the air blocking tooth plate (18) and the water cutting tooth plate (17).

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