Heat exchanger for furnace

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger for a furnace, which comprises a heat exchange box, a water inlet pipe is arranged on the upper surface of the heat exchange box, a drain pipe is arranged at one end of the heat exchange box, a filter structure is mounted on the outer surface of the water inlet pipe, and the filter structure comprises a filter component and a dust removal component. By starting an electric telescopic rod, the output end of the electric telescopic rod pushes a bottom plate to move upwards, meanwhile, a connecting frame moves upwards in a through opening, when the bottom plate abuts against the inner surface of the filter box, a filter screen is completely separated from the interior of the filter box, a second driving motor is started, and the output end of the second driving motor drives a driving gear to rotate; the driving gear drives the driven gear to rotate, so that the connecting rod and the reciprocating lead screw axially rotate with the through hole as the center, the connecting plate repeatedly moves on the reciprocating lead screw, meanwhile, the cleaning plate cleans the outer surface of the filter screen, and the good cleaning effect is achieved. The heat exchanger is mainly applied to heat exchangers for furnaces.

Description

Technical Field

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

[0002] A heat exchanger (also known as a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet specified process requirements and is commonly used in industrial production.

[0003] The utility model patent application document with publication number "CN213912990U" discloses a flue gas heat exchanger, which is mainly composed of a heat exchange mechanism, a dust filtering mechanism and a dust removal mechanism. This technical solution drives the annular filter to rotate through a driving motor, which can reduce the possibility of dust adhering to the surface of the annular filter, and can also throw off the dust attached to the surface of the annular filter, reducing the possibility of the annular filter being blocked by dust, which is beneficial for the gas to pass through the annular filter and the use of the annular filter. In addition, the dust attached to the surface of the annular filter can be blown away by the cooperation of the fan and the nozzle, which is beneficial for the subsequent use of the annular filter.

[0004] The flue gas heat exchanger disclosed in the above document has the following defects: the drive motor in the flue gas heat exchanger is installed inside the intake pipe for use. However, the gas temperature inside the intake pipe is relatively high. During long-term use, the drive motor is easily affected by the hot air, resulting in poor heat dissipation of the drive motor, which in turn causes the electronic components inside the drive motor to burn out, thereby losing its ability to clean the filter.

[0005] It can be seen from this that the existing flue gas heat exchanger does not have a good dust filtering structure, and it is necessary to improve the existing deficiencies and provide a heat exchanger for a furnace. Utility Model Content

[0006] The purpose of the utility model is to provide a heat exchanger for a furnace to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0008] The utility model is a heat exchanger for a furnace, comprising a heat exchange box, a heat exchange tube is installed inside the heat exchange box, a heat exchange plate is arranged on the outer surface of the heat exchange tube, an air inlet pipe is arranged at one end of the heat exchange tube, an exhaust pipe is arranged at the other end of the heat exchange tube, the air inlet pipe and the exhaust pipe both pass through the heat exchange box and extend outward, a water inlet pipe is arranged on the upper surface of the heat exchange box, a drain pipe is arranged on the side wall of the heat exchange box, a filter structure is installed on the outer surface of the air inlet pipe, and the filter structure comprises a filter assembly and a dust removal assembly.

[0009] Furthermore, the filter assembly includes a filter box, both ends of the filter box are provided with connecting pipes, one end of one of the connecting pipes is installed on the outer surface of the air inlet pipe, the lower surface of the filter box is provided with a through opening, the interior of the through opening is provided with a bottom plate, the upper surface of the bottom plate is provided with two connecting frames, the interiors of the two connecting frames are both installed with filter screens, the upper surface of the filter box is provided with two through openings, the interiors of the two through openings are both installed with connecting frames, a support frame is installed on the lower surface of the filter box, an electric telescopic rod is installed on the upper surface of the support frame, and the output end of the electric telescopic rod is connected to the bottom plate.

[0010] Furthermore, a baffle is provided on the upper surface of the filter box, and the baffle is set to two and symmetrically arranged. A reciprocating screw is rotatably connected between the two baffles, and a connecting plate is threadedly connected to the outer surface of the reciprocating screw. A guide rod is also installed between the two baffles, and a sliding hole is opened at one end of the connecting plate, and the inside of the sliding hole is slidably connected to the guide rod. A cleaning plate is installed on the lower surface of the connecting plate, and a brush surface is provided on the cleaning plate.

[0011] Furthermore, a through hole is installed on the outer surface of one of the baffles, a connecting rod is rotatably connected inside the through hole, a driven gear is installed on one end of the connecting rod, and the other end of the connecting rod is connected to the reciprocating screw rod.

[0012] Furthermore, the dust removal assembly includes a frame, which is installed on the outer surface of the heat exchange box, and a first drive motor is installed inside the frame. A fan blade is installed at the output end of the first drive motor. Threaded holes are opened at both ends of the frame, and a one-way screw is connected to the internal thread of the threaded hole. A clamping plate is installed at one end of the one-way screw, and a rotating handle is installed at the other end of the one-way screw.

[0013] Furthermore, a placement seat is provided on the upper surface of the frame, a second driving motor is installed on the upper surface of the placement seat, a driving gear is installed on the output end of the second driving motor, and the driving gear is meshed and connected with the driven gear.

[0014] Furthermore, a support plate is provided on the outer surface of the filter box, the other end of the support plate is installed on the outer surface of the heat exchange box, the outer surface of the heat exchange box is provided with a support seat, and a support frame is installed on the upper surface of the support seat.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model starts the electric telescopic rod so that the output end of the electric telescopic rod pushes the bottom plate to move upward, and at the same time the connecting frame moves upward in the through hole. When the bottom plate abuts against the inner surface of the filter box, the filter screen is completely separated from the inside of the filter box. By starting the second drive motor, the output end of the second drive motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate. During the rotation of the driven gear, the connecting rod and the reciprocating screw rod rotate axially with the through hole as the center, so that the connecting plate moves repeatedly on the reciprocating screw rod, and at the same time the cleaning plate cleans the outer surface of the filter screen, achieving a better cleaning effect.

[0017] (2) The utility model starts the first driving motor so that the output end of the first driving motor drives the fan blades to rotate, thereby generating wind force in the frame, thereby removing dust from the outer surface of the filter, thereby achieving a better dust removal effect.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the heat exchange box of the utility model;

[0022] Figure 3 This is a schematic diagram of the filtering structure of the utility model;

[0023] Figure 4 This is an exploded view of the filtering structure of the utility model;

[0024] Figure 5 This is the structural section of the filter assembly of the utility model Figure 1 ;

[0025] Figure 6 This is the structural section of the filter assembly of the utility model Figure 2 ;

[0026] Figure 7 This is a schematic diagram of the structure of the dust removal component of the utility model;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] In the figure: 1, heat exchange box; 101, water inlet pipe; 102, drain pipe; 103, support seat; 2, heat exchange tube; 201, heat exchange plate; 202, air inlet pipe; 203, exhaust pipe; 3, filter structure; 301, filter assembly; 3011, filter box; 3012, connecting pipe; 3013, bottom plate; 3014, connecting frame; 3015, support frame; 3016, electric telescopic rod; 3017, baffle; 3018, reciprocating screw rod; 30 19. Connecting plate; 30110. Guide rod; 30111. Cleaning plate; 30112. Connecting rod; 30113. Driven gear; 30114. Support plate; 30115. Filter; 302. Dust removal assembly; 3021. Frame; 3022. First drive motor; 3023. Fan blade; 3024. One-way screw; 3025. Clamping plate; 3026. Rotating handle; 3027. Second drive motor; 3028. Driving gear. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 - Figure 7 As shown, the utility model is a heat exchanger for a furnace, comprising a heat exchange box 1, a heat exchange tube 2 is installed inside the heat exchange box 1, a heat exchange plate 201 is provided on the outer surface of the heat exchange tube 2, an air inlet pipe 202 is provided at one end of the heat exchange tube 2, an exhaust pipe 203 is provided at the other end of the heat exchange tube 2, one end of the air inlet pipe 202 and the exhaust pipe 203 both pass through the heat exchange box 1 and extend outward, a water inlet pipe 101 is provided on the upper surface of the heat exchange box 1, a drain pipe 102 is provided at one end of the heat exchange box 1, a filter structure 3 is installed on the outer surface of the air inlet pipe 202, and the filter structure 3 includes a filter component 301 and a dust removal component 302;

[0031] The filter assembly 301 can filter the gas in the air intake pipe 202, and the dust removal assembly 302 can remove dust from the filter assembly 301, thereby achieving a better dust removal effect.

[0032] The filter assembly 301 includes a filter box 3011, both ends of the filter box 3011 are provided with connecting pipes 3012, one end of one of the connecting pipes 3012 is installed on the outer surface of the air inlet pipe 202, a through opening is provided on the lower surface of the filter box 3011, a bottom plate 3013 is provided inside the through opening, two connecting frames 3014 are provided on the upper surface of the bottom plate 3013, filter screens 30115 are installed inside the two connecting frames 3014, two through openings are provided on the upper surface of the filter box 3011, connecting frames 3014 are installed inside the two through openings, a support frame 3015 is installed on the lower surface of the filter box 3011, an electric telescopic rod 3016 is installed on the upper surface of the support frame 3015, and the output end of the electric telescopic rod 3016 is installed with the bottom plate 3013;

[0033] A baffle 3017 is provided on the upper surface of the filter box 3011. The baffles 3017 are set to two and are symmetrically arranged. A reciprocating screw rod 3018 is rotatably connected between the two baffles 3017. A connecting plate 3019 is threadedly connected to the outer surface of the reciprocating screw rod 3018. A guide rod 30110 is also installed between the two baffles 3017. A sliding hole is opened at one end of the connecting plate 3019. The guide rod 30110 is slidably connected inside the sliding hole. A cleaning plate 30111 is installed on the lower surface of the connecting plate 3019. A brush surface is provided at one end of the cleaning plate 30111.

[0034] A through hole is installed on the outer surface of one of the baffles 3017, and a connecting rod 30112 is rotatably connected inside the through hole. A driven gear 30113 is installed at one end of the connecting rod 30112, and a reciprocating screw rod 3018 is installed at the other end of the connecting rod 30112;

[0035] The dust removal assembly 302 includes a frame 3021, which is mounted on the outer surface of the heat exchange box 1. A first drive motor 3022 is mounted inside the frame 3021, and a fan blade 3023 is mounted on the output end of the first drive motor 3022. Threaded holes are provided at both ends of the frame 3021, and a one-way screw 3024 is threadedly connected to the inner thread of the threaded hole. A clamping plate 3025 is mounted on one end of the one-way screw 3024, and a rotating handle 3026 is mounted on the other end of the one-way screw 3024.

[0036] A placement seat is provided on the upper surface of the frame 3021, a second driving motor 3027 is installed on the upper surface of the placement seat, a driving gear 3028 is installed at the output end of the second driving motor 3027, and the driving gear 3028 is meshed and connected with the driven gear 30113;

[0037] A support plate 30114 is provided on the outer surface of the filter box 3011, and the other end of the support plate 30114 is installed on the outer surface of the heat exchange box 1. A support seat 103 is provided on the outer surface of the heat exchange box 1, and a support frame 3015 is installed on the upper surface of the support seat 103;

[0038] When the filter 30115 needs to be cleaned, the electric telescopic rod 3016 is started, so that the output end of the electric telescopic rod 3016 pushes the bottom plate 3013 to move upward, and the connecting frame 3014 moves upward in the through opening. When the bottom plate 3013 abuts against the inner surface of the filter box 3011, the filter 30115 is completely separated from the inside of the filter box 3011. The second drive motor 3027 is started, and the output end of the second drive motor 3027 drives the driving gear 3028 to rotate, and the driving gear 3028 drives the driven gear 30113 to rotate. During the rotation of the driven gear 30113, the connecting rod 30112 and the reciprocating screw rod 3018 rotate axially around the through hole, so that the connecting plate 3019 moves repeatedly on the reciprocating screw rod 3018, and at the same time, the cleaning plate 30111 cleans the outer surface of the filter 30115, achieving a better cleaning effect.

[0039] When the filter 30115 is cleaned, the electric telescopic rod 3016 is started so that the output end of the electric telescopic rod 3016 drives the bottom plate 3013 to reset, thereby returning the connecting frame 3014 and the filter 30115 to the inside of the filter box 3011;

[0040] During the cleaning process of the filter 30115, the first drive motor 3022 is started so that the output end of the first drive motor 3022 drives the fan blades 3023 to rotate, so that wind force is generated in the frame 3021, thereby removing dust from the outer surface of the filter 30115, thereby achieving a better dust removal effect;

[0041] When the first drive motor 3022 needs to be removed, the rotating handle 3026 is rotated to drive the one-way screw 3024 to rotate, so that the one-way screw 3024 moves axially outward with the threaded hole as the center, and the clamping plate 3025 gradually cancels the fixation of the first drive motor 3022, thereby facilitating the replacement and maintenance of the first drive motor 3022.

[0042] 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 furnace, characterized in that: The invention comprises a heat exchange box (1), wherein a heat exchange tube (2) is installed inside the heat exchange box (1), a heat exchange plate (201) is provided on the outer surface of the heat exchange tube (2), an air intake pipe (202) is provided at one end of the heat exchange tube (2), and an exhaust pipe (203) is provided at the other end of the heat exchange tube (2), the air intake pipe (202) and the exhaust pipe (203) both pass through the heat exchange box (1) and extend outwards, a water intake pipe (101) is provided on the upper surface of the heat exchange box (1), a drainage pipe (102) is provided on the side wall of the heat exchange box (1), and a filter structure (3) is installed on the outer surface of the air intake pipe (202), and the filter structure (3) comprises a filter component (301) and a dust removal component (302).

2. A furnace heat exchanger according to claim 1, characterized in that: The filter assembly (301) comprises a filter box (3011), both ends of the filter box (3011) are provided with connecting pipes (3012), one end of one of the connecting pipes (3012) is mounted on the outer surface of the air intake pipe (202), a through opening is provided on the lower surface of the filter box (3011), a bottom plate (3013) is provided inside the through opening, two connecting frames (3014) are provided on the upper surface of the bottom plate (3013), filter screens (30115) are installed inside the two connecting frames (3014), and two through openings are provided on the upper surface of the filter box (3011), connecting frames (3014) are installed inside the two through openings; A support frame (3015) is installed on the lower surface of the filter box (3011), and an electric telescopic rod (3016) is installed on the upper surface of the support frame (3015), and the output end of the electric telescopic rod (3016) is connected to the bottom plate (3013).

3. A furnace heat exchanger according to claim 2, characterized in that: The upper surface of the filter box (3011) is provided with a baffle (3017), the baffles (3017) are set to be two and symmetrically arranged, a reciprocating screw rod (3018) is rotatably connected between the two baffles (3017), and the outer surface of the reciprocating screw rod (3018) is threadedly connected to a connecting plate (3019); A guide rod (30110) is also installed between the two baffles (3017); a sliding hole is opened at one end of the connecting plate (3019); the guide rod (30110) is slidably connected inside the sliding hole; a cleaning plate (30111) is installed on the lower surface of the connecting plate (3019); and a brush surface is provided on the cleaning plate (30111).

4. A furnace heat exchanger according to claim 3, characterized in that: A through hole is installed on the outer surface of one of the baffles (3017), and a connecting rod (30112) is rotatably connected inside the through hole. A driven gear (30113) is installed on one end of the connecting rod (30112), and the other end of the connecting rod (30112) is connected to the reciprocating screw rod (3018).

5. A furnace heat exchanger according to claim 4, characterized in that: The dust removal component (302) comprises a frame (3021), the frame (3021) being mounted on the outer surface of the heat exchange box (1), a first drive motor (3022) being mounted inside the frame (3021), a fan blade (3023) being mounted at the output end of the first drive motor (3022), threaded holes being provided at both ends of the frame (3021), a one-way screw rod (3024) being threadedly connected to the inside of the threaded hole, a clamping plate (3025) being mounted at one end of the one-way screw rod (3024), and a rotating handle (3026) being mounted at the other end of the one-way screw rod (3024).

6. A furnace heat exchanger according to claim 5, characterized in that: A placement seat is provided on the upper surface of the frame (3021), a second drive motor (3027) is mounted on the upper surface of the placement seat, a driving gear (3028) is mounted on the output end of the second drive motor (3027), and the driving gear (3028) is meshedly connected with the driven gear (30113).

7. A furnace heat exchanger according to claim 2, characterized in that: The outer surface of the filter box (3011) is provided with a support plate (30114), the other end of the support plate (30114) is mounted on the outer surface of the heat exchange box (1), the outer surface of the heat exchange box (1) is provided with a support seat (103), and the upper surface of the support seat (103) is mounted with a support frame (3015).

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