Efficient heat exchange device of boiler hot water heater system

Abstract

The utility model relates to the technical field of heat exchange devices, in particular to an efficient heat exchange device of a boiler hot water heater system, which comprises a snakelike outer pipe, a snakelike inner pipe and a support frame body, the snakelike outer pipe is sleeved on the outer side of the snakelike inner pipe, the support frame body comprises two side support plates, two supporting plates are arranged at the lower ends of the two side support plates, and the two side support plates are connected with the snakelike outer pipe. An upper pressing plate is arranged above the S-shaped outer pipe, installation bolts are assembled at the two ends of the upper pressing plate, the installation bolts penetrate through the upper pressing plate and are in threaded connection with bolt holes formed in the upper ends of the side supporting plates, and pressing plate structures are arranged at the upper ends of the side supporting plates. The upper pressing plate is fixed to the side supporting plate in a bolt connection mode, when the S-shaped outer pipe and the S-shaped inner pipe are taken down from the supporting structure, fixation between the upper pressing plate and the side supporting plate is removed, disassembly, assembly and replacement are convenient, the pressing plate structure can protect the installation bolt and prevent the installation bolt from falling off from the two ends of the upper pressing plate, and the service life of the installation bolt is prolonged. And the working stability and reliability of the snakelike outer pipe and the snakelike inner pipe are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a high-efficiency heat exchange device for a boiler hot water heater system. Background Art

[0002] The boiler hot water heater is a device that uses the heat of the flue gas at the tail of the gas turbine to enter the waste heat boiler, thereby heating the desalted water inside it to a temperature of 100-120°C. The hot water heated by the hot water heater is used for refrigeration in the HVAC refrigeration station (lithium bromide refrigerator), metering skid and natural gas heating in the gasification station, using a closed system. The high-temperature exhaust gas generated by the hot water heater is recycled and utilized through the heat exchange device to improve energy utilization.

[0003] The high-temperature exhaust gas generated by the boiler equipment is passed into the waste heat recovery device. Since the layout space of the waste heat recovery device is very limited, in actual application, the heat exchange tube will accumulate dust in the heat exchange space, affecting the heat dissipation effect. In order to facilitate the operators to replace and regularly maintain the heat exchange tubes, the common detachable heat exchange tubes will be fixed to the bracket structure in the heat exchange space by bolt connection. During the operation of the heat exchange tube, the gas and liquid will continue to flow in the heat exchange pipe. When the gas and liquid just enter the pipe to flow, they will have an instantaneous impact on the heat exchange pipe, causing the heat exchange pipe to loosen periodically. The bolts used to fix the heat exchange pipe to the external bracket will also become loose, and then the bracket structure cannot maintain a stable fixed state with the heat exchange pipe, affecting the safe use of the entire waste heat recovery device. Utility Model Content

[0004] In view of the above problems, the utility model proposes a high-efficiency heat exchange device for a boiler hot water heater system, which is used to solve the problem that in the existing heat exchange device, when the gas and liquid just enter the pipeline to flow, the gas and liquid will have an instantaneous impact on the heat exchange pipeline, causing the heat exchange pipeline to loosen periodically, and the bolts used to fix the heat exchange pipeline to the external bracket will also become loose.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a high-efficiency heat exchange device for a boiler hot water heater system, comprising a serpentine outer tube, a serpentine inner tube and a support frame, the serpentine outer tube is sleeved on the outer side of the serpentine inner tube, and both ends of the serpentine inner tube extend to the outside of the serpentine outer tube;

[0006] The support frame includes two side support plates, the lower ends of the two side support plates are provided with two support plates, the support plates are fixedly connected to the side support plates, and the upper ends of the support plates are provided with a plurality of arc-shaped support seats for supporting the serpentine outer tube;

[0007] The support frame includes two side support plates, and two support plates are provided at the lower ends of the two side support plates. The support plates are fixedly connected to the side support plates. A plurality of arc-shaped support seats for supporting the serpentine outer tube are provided at the upper ends of the support plates. A pressure plate structure is provided at the upper ends of the side support plates to prevent the mounting bolts from loosening.

[0008] Further improvement lies in: the pressure plate structure includes a first fixed seat and a second fixed seat arranged at the upper end of the side support plate, the first fixed seat and the second fixed seat are both fixedly connected to the side support plate, a gap is left between the first fixed seat and the second fixed seat, the two ends of the upper pressure plate are inserted between the first fixed seat and the second fixed seat, a pressure block is provided at the upper end of the mounting bolt, one end of the pressure block is rotatably connected to the first fixed seat, and the other end of the pressure block is detachably connected to the second fixed seat through a bolt positioning piece.

[0009] A further improvement is that the bolt positioning member includes a pressure plate groove and a positioning bolt, the pressure plate groove is opened at the upper end of the second fixed seat, the pressure plate groove is plugged into and matched with the end of the pressure block away from the first fixed seat, the positioning bolt is assembled on the outside of the second fixed seat, the positioning bolt penetrates into the pressure plate groove and is threadedly connected with the bolt groove opened on the outside of the pressure block.

[0010] A further improvement is that bolt plates are provided on both sides of the arc-shaped support seat and the arc-shaped pressure seat, each bolt plate is fixedly connected to the arc-shaped support seat and the arc-shaped pressure seat respectively, and a fixing bolt is installed on the bolt plate, and a plurality of assembly holes that cooperate with the fixing bolt threads are opened on the support plate and the upper pressure plate.

[0011] A further improvement is that the serpentine outer tube is provided with a liquid injection port and a liquid discharge port, which are respectively fixedly connected to the two ends of the serpentine outer tube, and the serpentine inner tube is provided with an air injection port and an air discharge port, which are respectively fixedly connected to the two ends of the serpentine inner tube.

[0012] A further improvement is that the liquid injection port is installed at one end of the serpentine outer tube away from the gas injection port, and the liquid injection port is installed at one end of the serpentine outer tube away from the gas exhaust port.

[0013] The beneficial effects of the utility model are as follows: the upper pressure plate is fixed to the side support plate by bolt connection. When the serpentine outer tube and the serpentine inner tube are removed from the supporting structure, the fixation between the upper pressure plate and the side support plate can be released. The disassembly and replacement are convenient. The pressure plate structure can protect the installation bolts to prevent the installation bolts from falling off from both ends of the upper pressure plate, thereby improving the stability and reliability of the operation of the serpentine outer tube and the serpentine inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural diagram of the support plate in the utility model.

[0016] Figure 2 It is a structural diagram of the interior of the serpentine outer tube and the serpentine inner tube in the utility model.

[0017] Figure 3 It is a structural diagram of the upper pressing plate in the utility model.

[0018] Figure 4 This utility model Figure 1 A is an enlarged view of the structure.

[0019] Figure 5 This utility model Figure 3 A magnified view of the structure of B.

[0020] Among them: 1. side support plate; 2. supporting plate; 3. upper pressure plate; 4. arc-shaped supporting seat; 5. arc-shaped pressure seat; 6. assembly hole; 7. serpentine outer tube; 71. liquid injection port; 72. liquid discharge port; 8. serpentine inner tube; 81. gas injection port; 82. gas exhaust port; 9. bolt plate; 10. fixing bolt; 11. first fixing seat; 12. second fixing seat; 13. pressing block; 14. mounting bolt; 15. pressure plate groove; 16. positioning bolt. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] according to Figure 1 , 2 As shown in Figures 3, 4 and 5, a high-efficiency heat exchange device for a boiler hot water heater system is proposed in this embodiment, comprising a serpentine outer tube 7, a serpentine inner tube 8 and a support frame, wherein the serpentine outer tube 7 is sleeved on the outer side of the serpentine inner tube 8, and both ends of the serpentine inner tube 8 extend to the outside of the serpentine outer tube 7; the boiler hot water heater uses a serpentine heat exchanger to recycle the waste heat generated by the heater. The serpentine heat exchanger has the advantages of simple structure, low cost and convenient operation and management.

[0023] The support frame includes two side support plates 1, and two support plates 2 are provided at the lower ends of the two side support plates 1. The support plates 2 are fixedly connected to the side support plates 1, and a plurality of arc-shaped support seats 4 for supporting the serpentine outer tube 7 are provided at the upper ends of the support plates 2; the heat exchange pipe body composed of the serpentine outer tube 7 and the serpentine inner tube 8 is arranged between the two side support plates 1, and the two support plates 2 at the lower ends of the side support plates 1 will support the serpentine outer tube 7 through the arc-shaped support seats 4.

[0024] An upper pressing plate 3 is arranged above the serpentine outer tube 7, and a plurality of arc-shaped pressing seats 5 for limiting the serpentine outer tube 7 are arranged at the lower end of the upper pressing plate 3. Mounting bolts 14 are arranged at both ends of the upper pressing plate 3, and the mounting bolts 14 pass through the upper pressing plate 3 and are threadedly connected with the bolt holes provided at the upper end of the side support plate 1. The upper pressing plate 3 is fixed to the side support plate 1 by bolt connection. When the serpentine outer tube 7 and the serpentine inner tube 8 are removed from the supporting structure, the fixing between the upper pressing plate 3 and the side support plate 1 can be released, and the disassembly and replacement are convenient. When the gas and liquid in the serpentine outer tube 7 and the serpentine inner tube 8 flow, the serpentine outer tube 7 and the serpentine inner tube 8 will have an impact on the serpentine outer tube 7 and the serpentine inner tube 8, and the serpentine outer tube 7 and the serpentine inner tube 8 will vibrate periodically. In order to prevent the mounting bolts 14 at both ends of the upper pressing plate 3 from loosening, a pressing plate structure for preventing the mounting bolts 14 from loosening is arranged at the upper end of the side support plate 1. The pressure plate structure can protect the installation bolt 14, prevent the installation bolt 14 from falling off from both ends of the upper pressure plate 3, and improve the working stability and reliability of the serpentine outer tube 7 and the serpentine inner tube 8.

[0025] Specifically, the pressure plate structure includes a first fixing seat 11 and a second fixing seat 12 arranged at the upper end of the side support plate 1, the first fixing seat 11 and the second fixing seat 12 are both fixedly connected to the side support plate 1, a gap is left between the first fixing seat 11 and the second fixing seat 12, the two ends of the upper pressure plate 3 are inserted between the first fixing seat 11 and the second fixing seat 12, and a pressure block 13 is provided at the upper end of the mounting bolt 14, one end of the pressure block 13 is rotatably connected to the first fixing seat 11, and the other end of the pressure block 13 is detachably connected to the second fixing seat 12 through a bolt positioning member. The two ends of the upper pressure plate 3 are inserted into the gap formed between the first fixing seat 11 and the second fixing seat 12 at the upper end of the side support plate 1, and the two ends of the upper pressure plate 3 are fixed to the side support plate 1 through the mounting bolt 14. After the pressure block 13 is moved and pressed on the upper end of the mounting bolt 14, the end of the pressure block 13 away from the first fixing seat 11 will be fixed to the second fixing seat 12 through the bolt positioning member. The mounting bolt 14 is pressed by the pressing block 13. Under the limit of the pressing block 13, the mounting bolt 14 can maintain a tight assembly state with the upper pressing plate 3 and the side support plate 1. The mounting bolt 14 will not fall off, and has high reliability.

[0026] More specifically, the bolt positioning member includes a pressure plate groove 15 and a positioning bolt 16. The pressure plate groove 15 is provided at the upper end of the second fixing seat 12. The pressure plate groove 15 is plugged and matched with the end of the pressure block 13 away from the first fixing seat 11. The positioning bolt 16 is assembled on the outside of the second fixing seat 12. The positioning bolt 16 penetrates into the pressure plate groove 15 and is threadedly connected with the bolt groove provided on the outside of the pressure block 13. After the pressure block 13 is pressed on the upper end of the installation bolt 14, the end of the pressure block 13 away from the first fixing seat 11 will be stuck in the pressure plate groove 15 provided at the upper end of the second fixing seat 12. At this time, the positioning bolt 16 on the outside of the second fixing seat 12 is rotated and the positioning bolt 16 is screwed into the bolt groove provided on the outside of the pressure block 13, so that the pressure block 13 can be kept in a locked state.

[0027] The two support plates 2 at the lower end of the side support plate 1 will support the serpentine outer tube 7 through the arc support seat 4, and the upper pressure plate 3 fixed on the upper end of the side support plate 1 will limit the serpentine outer tube 7 from above the serpentine outer tube 7 through the arc pressure seat 5. Bolt plates 9 are provided on both sides of the arc support seat 4 and the arc pressure seat 5, and each bolt plate 9 is fixedly connected to the arc support seat 4 and the arc pressure seat 5 respectively. The bolt plates 9 are equipped with fixing bolts 10, and the support plates 2 and the upper pressure plate 3 are provided with a plurality of assembly holes 6 that are threadedly matched with the fixing bolts 10. In order to facilitate the replacement of the arc support seat 4 and the arc pressure seat 5, the arc support seat 4 and the arc pressure seat 5 are also fixedly connected to the support plate 2 and the upper pressure plate 3 by bolt connection.

[0028] Regarding the serpentine outer tube 7 and the serpentine inner tube 8: the serpentine outer tube 7 is provided with a liquid injection port 71 and a liquid discharge port 72, and the liquid injection port 71 and the liquid discharge port 72 are respectively fixedly connected to the two ends of the serpentine outer tube 7, and the serpentine inner tube 8 is provided with a gas injection port 81 and an exhaust port 82, and the gas injection port 81 and the exhaust port 82 are respectively fixedly connected to the two ends of the serpentine inner tube 8.

[0029] It should be noted that the liquid injection port 71 is installed at one end of the serpentine outer tube 7 away from the gas injection port 81, and the liquid injection port 71 is installed at one end of the serpentine outer tube 7 away from the exhaust port 82. The high-temperature exhaust gas generated by the hot water heater is passed into the serpentine inner tube 8 through the gas injection port 81, and the high-temperature exhaust gas continues to flow in the serpentine inner tube 8. The liquid that needs to be heat exchanged is passed into the serpentine outer tube 7 through the liquid injection port 71, and the liquid continues to flow in the serpentine outer tube 7, and heat exchanges with the high-temperature exhaust gas through the serpentine inner tube 8, thereby achieving the effect of waste heat recovery. Since the high-temperature exhaust gas and the liquid used for heat exchange have opposite flow directions, the heat exchange efficiency is higher.

[0030] Working principle of the present application: The heat exchange pipe body composed of the serpentine outer tube 7 and the serpentine inner tube 8 is placed between the two side support plates 1 to recycle the waste heat generated by the heater. The two support plates 2 at the lower end of the side support plate 1 will support the serpentine outer tube 7 through the arc-shaped support seat 4. The upper pressure plate 3 is fixed to the side support plate 1 by bolt connection. When the serpentine outer tube 7 and the serpentine inner tube 8 are removed from the supporting structure, the fixation between the upper pressure plate 3 and the side support plate 1 can be released, which is convenient for disassembly and replacement. The pressure plate structure can protect the installation bolt 14 to prevent the installation bolt 14 from falling off from both ends of the upper pressure plate 3, thereby improving the stability and reliability of the operation of the serpentine outer tube 7 and the serpentine inner tube 8.

[0031] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A high-efficiency heat exchange device for a boiler hot water heater system, comprising a serpentine outer tube (7), a serpentine inner tube (8) and a support frame, wherein the serpentine outer tube (7) is sleeved on the outer side of the serpentine inner tube (8), and both ends of the serpentine inner tube (8) extend outside the serpentine outer tube (7), characterized in that: The support frame body comprises two side support plates (1), the lower ends of the two side support plates (1) are provided with two support plates (2), the support plates (2) are fixedly connected to the side support plates (1), and the upper ends of the support plates (2) are provided with a plurality of arc-shaped support seats (4) for supporting the serpentine outer tube (7); An upper pressure plate (3) is provided above the serpentine outer tube (7), and a plurality of arc-shaped pressure seats (5) for limiting the position of the serpentine outer tube (7) are provided at the lower end of the upper pressure plate (3). Mounting bolts (14) are installed at both ends of the upper pressure plate (3), and the mounting bolts (14) pass through the upper pressure plate (3) and are threadedly connected to bolt holes provided at the upper end of the side support plate (1). A pressure plate structure for preventing the mounting bolts (14) from loosening is provided at the upper end of the side support plate (1).

2. A high-efficiency heat exchange device for a boiler hot water heater system according to claim 1, characterized in that: The pressure plate structure comprises a first fixing seat (11) and a second fixing seat (12) arranged at the upper end of the side support plate (1); the first fixing seat (11) and the second fixing seat (12) are both fixedly connected to the side support plate (1); a gap is left between the first fixing seat (11) and the second fixing seat (12); both ends of the upper pressure plate (3) are inserted between the first fixing seat (11) and the second fixing seat (12); a pressure block (13) is provided at the upper end of the mounting bolt (14); one end of the pressure block (13) is rotatably connected to the first fixing seat (11); and the other end of the pressure block (13) is detachably connected to the second fixing seat (12) via a bolt positioning member.

3. A high-efficiency heat exchange device for a boiler hot water heater system according to claim 2, characterized in that: The bolt positioning member comprises a pressure plate groove (15) and a positioning bolt (16); the pressure plate groove (15) is provided at the upper end of the second fixing seat (12); the pressure plate groove (15) is plug-fitted with an end of the pressure block (13) away from the first fixing seat (11); the positioning bolt (16) is assembled on the outside of the second fixing seat (12); the positioning bolt (16) penetrates into the pressure plate groove (15) and is threadedly connected with the bolt groove provided on the outside of the pressure block (13).

4. A high-efficiency heat exchange device for a boiler hot water heater system according to claim 1, characterized in that: Bolt plates (9) are provided on both sides of the arc-shaped support seat (4) and the arc-shaped pressure seat (5), and each bolt plate (9) is fixedly connected to the arc-shaped support seat (4) and the arc-shaped pressure seat (5), respectively. A fixing bolt (10) is installed on the bolt plate (9), and a plurality of assembly holes (6) threadedly matched with the fixing bolt (10) are opened on the support plate (2) and the upper pressure plate (3).

5. A high-efficiency heat exchange device for a boiler hot water heater system according to claim 1, characterized in that: The serpentine outer tube (7) is provided with a liquid injection port (71) and a liquid discharge port (72), and the liquid injection port (71) and the liquid discharge port (72) are respectively fixedly connected to the two ends of the serpentine outer tube (7); the serpentine inner tube (8) is provided with a gas injection port (81) and a gas discharge port (82), and the gas injection port (81) and the gas discharge port (82) are respectively fixedly connected to the two ends of the serpentine inner tube (8).

6. A high-efficiency heat exchange device for a boiler hot water heater system according to claim 5, characterized in that: The liquid injection port (71) is installed at one end of the serpentine outer tube (7) away from the gas injection port (81), and the liquid injection port (71) is installed at one end of the serpentine outer tube (7) away from the gas exhaust port (82).

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