Heat exchanger for heating furnace

Abstract

The utility model belongs to the technical field of heat exchangers, particularly relates to a heat exchanger for a heating furnace, and aims to solve the problems that the existing heating furnace can generate high-temperature and high-heat hot flue gas, and waste heat generated in the hot flue gas can not be well recycled to cause heat loss and energy waste, and adopts the following scheme that the heat exchanger comprises a heat exchanger shell and a flow guide pipe, the outer side of the heat exchanger shell is provided with connector pipes, the two ends of the flow guide pipe are installed in the corresponding connector pipes in a sliding and sealing mode respectively, a motor is fixedly installed at the top of the heat exchanger shell, a square rod is fixedly installed on an output shaft of the motor, and the outer side of the square rod is sleeved with a driven sleeve in a sliding mode. The heat exchanger is reasonable in structural design, the driven sleeve is driven to rotate and move up and down in a reciprocating mode at the same time, water is driven to rotate and move up and down in a reciprocating mode, the water flowing speed is increased, the flow guide pipe is further made to make full contact with water by driving the flow guide pipe to move left and right in a reciprocating mode, the heat exchange effect is improved, and reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger for a heating furnace. Background Art

[0002] A heating furnace heat exchanger is a device used in a heating furnace to achieve heat energy transfer and heat exchange. Its function is to transfer energy from one fluid to another, usually transferring the heat energy generated by combustion to the medium to be heated. A heating furnace is a device used to heat and burn substances. It is usually used in industrial production, heating systems and other applications. The heating furnace burns fuel inside to generate heat energy, and then transfers the heat energy to the medium to be heated to achieve the purpose of heating. During the combustion process of the heating furnace, flue gas is usually generated, which contains exhaust gas, smoke and other pollutants generated by combustion.

[0003] However, in the process of realizing the embodiments of the present utility model, the inventors found that there are at least the following defects in the background technology: the existing heating furnace will produce high-temperature and high-heat hot flue gas. If this type of hot flue gas is discharged into the atmosphere only after purification, the waste heat generated in this part of the hot flue gas cannot be well recovered and utilized, resulting in heat loss and energy waste, and the purpose of waste heat recovery and reuse cannot be achieved. Therefore, we propose a heat exchanger for a heating furnace to solve this problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and to propose a heat exchanger for a heating furnace.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A heat exchanger for a heating furnace comprises a heat exchanger shell and a guide tube, the outer side of the heat exchanger shell is provided with an interface tube, two ends of the guide tube are respectively slidably and sealedly installed in the corresponding interface tube, a motor is fixedly installed on the top of the heat exchanger shell, a square rod is fixedly installed on the output shaft of the motor, the outer sliding sleeve of the square rod is provided with a driven sleeve, the inner side of the driven sleeve is provided with a plurality of built-in grooves, a plurality of square plates are fixedly installed on the outer side of the square rod, the square plates are slidably installed in the corresponding built-in grooves, the same return spring is fixedly installed between the square plate and the inner wall of one side of the corresponding built-in groove, a plurality of blades are fixedly installed on the outer side of the driven sleeve, the outer fixed sleeve of the driven sleeve is provided with a conical sleeve, a cam is fixedly installed on one end of the square rod, two support plates are provided on the outer side of the guide tube, a fixed plate is fixedly installed on one side of the support plate located above, the cam is rollingly connected with the fixed plate, a pushing ball is fixedly installed on one side of the fixed plate, and the pushing ball is slidably connected with the conical sleeve.

[0007] In a preferred embodiment, a support plate is fixedly installed on the inner wall of the heat exchanger shell, a guide hole is opened on the top of the support plate, the same guide plate is fixedly installed between the left and right inner walls of the guide hole, an extension plate is fixedly installed on the bottom of the support plate located below, the extension plate is slidably mounted on the outside of the guide plate, and a plurality of return springs are fixedly installed between the extension plate and one side inner wall of the guide hole.

[0008] In a preferred embodiment, a plurality of annular fins are disposed on the outer side of the flow guide tube, and the plurality of annular fins are arranged at equal intervals.

[0009] In a preferred embodiment, a water inlet pipe is provided at the outer bottom of the heat exchanger shell, and a water outlet pipe is provided at the outer top of the heat exchanger shell.

[0010] In a preferred embodiment, a sealing sleeve is fixedly mounted on the inner wall of the interface pipe, and one end of the flow guide pipe is slidably and sealingly mounted in the corresponding sealing sleeve.

[0011] In a preferred embodiment, a plurality of arc-shaped slots are formed on the top of the support plate, and the flow guide pipe is fixedly connected in the plurality of arc-shaped slots.

[0012] In a preferred embodiment, a plurality of built-in grooves are opened on the inner side of the driven sleeve, a plurality of square plates are fixedly installed on the outer side of the square rod, the square plates are slidably installed in the corresponding built-in grooves, and the same return spring is fixedly installed between the square plates and the inner wall of one side of the corresponding built-in groove.

[0013] In the utility model, a heat exchanger for a heating furnace is described, wherein the square rod is driven to rotate by the output shaft of the motor, thereby driving the driven sleeve to rotate, thereby driving the plurality of blades to rotate, driving the water body to rotate, and when the guide tube reciprocates left and right, the conical sleeve is driven to reciprocate left and right along the pushing ball, thereby driving the conical sleeve to reciprocate up and down, thereby driving the water to reciprocate up and down, accelerating the flow speed of the water body, and making the water fully contact with the guide tube;

[0014] In the utility model, a heat exchanger for a heating furnace is described, wherein a cam is driven to rotate by a square rod, and the cam drives the guide tube to reciprocate left and right through the cooperation of a push plate and a return spring, so that the guide tube is further fully in contact with water, thereby improving the heat exchange effect;

[0015] The utility model has a reasonable structural design. By driving the driven sleeve to rotate and reciprocate up and down at the same time, the water body is driven to rotate and reciprocate up and down, thereby accelerating the flow speed of the water body. By driving the guide tube to reciprocate left and right, the guide tube is further fully in contact with water, thereby improving the heat exchange effect and having high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a heat exchanger for a heating furnace proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a heat exchanger for a heating furnace proposed by the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of part A;

[0019] Figure 4 for Figure 2 A partial enlarged view of part B.

[0020] In the figure: 1. heat exchanger shell; 2. guide tube; 3. interface tube; 4. motor; 5. square rod; 6. driven sleeve; 7. square plate; 8. return spring; 9. blade; 10. cam; 11. conical sleeve; 12. support plate; 13. fixed plate; 14. push ball; 15. support plate; 16. guide plate; 17. extension plate; 18. annular fin; 19. outlet pipe; 20. sealing sleeve. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A heat exchanger for a heating furnace comprises a heat exchanger shell 1 and a guide tube 2. An interface tube 3 is arranged on the outer side of the heat exchanger shell 1. Both ends of the guide tube 2 are respectively slidably and sealedly installed in the corresponding interface tubes 3. A motor 4 is fixedly installed on the top of the heat exchanger shell 1. A square rod 5 is fixedly installed on the output shaft of the motor 4. A driven sleeve 6 is provided on the outer side of the square rod 5. A plurality of built-in grooves are opened on the inner side of the driven sleeve 6. A plurality of square plates 7 are fixedly installed on the outer side of the square rod 5. The square plates 7 are slidably installed in the corresponding built-in grooves. The square plates 7 A same return spring 8 is fixedly installed between the inner wall of one side of the corresponding built-in groove, a plurality of vanes 9 are fixedly installed on the outer side of the driven sleeve 6, a tapered sleeve 11 is provided on the outer fixed sleeve of the driven sleeve 6, a cam 10 is fixedly installed on one end of the square rod 5, two support plates 12 are provided on the outer side of the guide tube 2, a fixed plate 13 is fixedly installed on one side of the upper support plate 12, the cam 10 is rollingly connected to the fixed plate 13, a push ball 14 is fixedly installed on one side of the fixed plate 13, and the push ball 14 is slidingly connected to the tapered sleeve 11.

[0023] In the utility model, a support plate 15 is fixedly installed on the inner wall of the heat exchanger shell 1, a guide hole is opened on the top of the support plate 15, and the same guide plate 16 is fixedly installed between the inner walls on the left and right sides of the guide hole. An extension plate 17 is fixedly installed on the bottom of the support plate 12 located below, and the extension plate 17 is slidably sleeved on the outer side of the guide plate 16. A plurality of reset springs 8 are fixedly installed between the extension plate 17 and the inner wall of one side of the guide hole, which play a role in motion guidance and reset of the guide tube.

[0024] In the utility model, a plurality of annular fins 18 are arranged on the outer side of the flow guide tube 2. The plurality of annular fins 18 are arranged at equal intervals to expand the heat dissipation area of ​​the flow guide tube.

[0025] In the utility model, a water inlet pipe is arranged at the outer bottom of the heat exchanger shell 1, and a water outlet pipe 19 is arranged at the outer top of the heat exchanger shell 1, so as to facilitate the introduction and discharge of water and realize the heat exchange function.

[0026] In the present invention, a sealing sleeve 20 is fixedly installed on the inner wall of the interface pipe 3, and one end of the guide pipe 2 is slidably sealed and installed in the corresponding sealing sleeve 20, so that when the guide pipe reciprocates left and right, the hot water in the heat exchanger shell will not flow out into the interface pipe.

[0027] In the utility model, a plurality of arc-shaped slots are provided on the top of the support plate 12, and the flow guide tube 2 is fixedly connected in the plurality of arc-shaped slots to support the flow guide tube.

[0028] In the utility model, a plurality of built-in grooves are provided on the inner side of the driven sleeve 6, a plurality of square plates 7 are fixedly installed on the outer side of the square rod 5, the square plates 7 are slidably installed in the corresponding built-in grooves, and a same reset spring 8 is fixedly installed between the square plates 7 and the inner wall of one side of the corresponding built-in groove, which plays the role of motion guidance and reset for the driven sleeve.

[0029] In the utility model, when in use, the hot flue gas generated by the heating furnace is introduced into the heat exchanger shell 1 through the interface pipe 3, and water is introduced into the heat exchanger shell 1 through the water inlet pipe. The guide pipe 2 transfers the heat of the hot flue gas to the water through a plurality of annular fins 18, thereby cooling the flue gas and recovering the residual heat in the flue gas. The motor 4 is started, and the output shaft of the motor 4 drives the square rod 5 to rotate, thereby driving the driven sleeve 6 to rotate, thereby driving a plurality of blades 9 to rotate, and driving the water body to rotate, so that the water is fully in contact with the guide pipe 2, and the square rod 5 drives the cam 10 to rotate. The cam 10 drives the guide pipe 2 to reciprocate left and right through the cooperation of the push plate and the return spring 8, further making the guide pipe 2 fully in contact with the water, improving the heat exchange effect, and when the guide pipe 2 reciprocates left and right, it drives the conical sleeve 11 to reciprocate left and right along the pushing ball 14, thereby driving the conical sleeve 11 to reciprocate up and down, thereby pushing the water to reciprocate up and down, accelerating the flow speed of the water body, and making the water fully in contact with the guide pipe 2.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A heat exchanger for a heating furnace, characterized in that: The heat exchanger comprises a heat exchanger shell (1) and a flow guide pipe (2), wherein an interface pipe (3) is arranged on the outer side of the heat exchanger shell (1), and the two ends of the flow guide pipe (2) are respectively slidably and sealedly mounted in the corresponding interface pipes (3), a motor (4) is fixedly mounted on the top of the heat exchanger shell (1), a square rod (5) is fixedly mounted on the output shaft of the motor (4), a driven sleeve (6) is provided on the outer sliding sleeve of the square rod (5), and a plurality of blades (9) are fixedly mounted on the outer side of the driven sleeve (6), The outer fixed sleeve of the driven sleeve (6) is provided with a conical sleeve (11), one end of the square rod (5) is fixedly mounted with a cam (10), the outer side of the guide tube (2) is provided with two supporting plates (12), one side of the supporting plate (12) located at the top is fixedly mounted with a fixing plate (13), the cam (10) is rollingly connected to the fixing plate (13), one side of the fixing plate (13) is fixedly mounted with a pushing ball (14), and the pushing ball (14) is slidingly connected to the conical sleeve (11).

2. A heat exchanger for a heating furnace according to claim 1, characterized in that: A support plate (15) is fixedly mounted on the inner wall of the heat exchanger shell (1), a guide hole is opened at the top of the support plate (15), a same guide plate (16) is fixedly mounted between the left and right inner walls of the guide hole, an extension plate (17) is fixedly mounted on the bottom of the support plate (12) located below, the extension plate (17) is slidably mounted on the outer side of the guide plate (16), and a plurality of return springs (8) are fixedly mounted between the extension plate (17) and the inner wall of one side of the guide hole.

3. The heat exchanger for a heating furnace according to claim 1, characterized in that: A plurality of annular fins (18) are arranged on the outer side of the flow guide tube (2), and the plurality of annular fins (18) are arranged at equal intervals.

4. The heat exchanger for a heating furnace according to claim 1, characterized in that: A water inlet pipe is provided at the outer bottom of the heat exchanger shell (1), and a water outlet pipe (19) is provided at the outer top of the heat exchanger shell (1).

5. The heat exchanger for a heating furnace according to claim 1, characterized in that: A sealing sleeve (20) is fixedly mounted on the inner wall of the interface pipe (3), and one end of the flow guide pipe (2) is slidably and sealingly mounted in the corresponding sealing sleeve (20).

6. The heat exchanger for a heating furnace according to claim 1, characterized in that: A plurality of arc-shaped slots are provided on the top of the support plate (12), and the flow guide tube (2) is fixedly clamped in the plurality of arc-shaped slots.

7. The heat exchanger for a heating furnace according to claim 1, characterized in that: The inner side of the driven sleeve (6) is provided with a plurality of built-in grooves, the outer side of the square rod (5) is fixedly provided with a plurality of square plates (7), the square plates (7) are slidably installed in the corresponding built-in grooves, and a same return spring (8) is fixedly installed between the square plates (7) and the inner wall of one side of the corresponding built-in groove.

Images