Waste heat recovery mechanism suitable for steam drying furnace

Abstract

The utility model discloses a waste heat recovery mechanism suitable for a steam drying furnace. The waste heat recovery mechanism comprises a supporting frame; the boiler comprises a boiler body, an insulation board, a water inlet coil, a steam pipe and a heating device. The waste heat recovery mechanism further comprises a recovery device used for recovering condensate water, and the buffer mechanism is located in the heat preservation plate. The recycling device comprises a recycling box, the outer wall of the recycling box is fixedly connected with a handle, the outer wall of the supporting frame is fixedly connected with a supporting plate, the top of the supporting plate is slidably connected with the bottom of the recycling box, and the outer wall of the recycling box is slidably connected with the outer wall of the supporting frame; the utility model relates to the technical field of waste heat recovery. According to the waste heat recovery mechanism, the recovery mechanism is arranged, accumulated water falls into the recovery box below, when the accumulated water reaches a certain amount, the handle is pulled, and the recovery box slides on the supporting plate to be taken out, so that the problem that some accumulated water generated on the inner wall of the furnace body is difficult to discharge is solved, and the problem that parts are corroded by water vapor is relieved while the heat utilization rate of the drying furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, and in particular to a waste heat recovery mechanism suitable for a steam drying furnace. Background Art

[0002] As people's living standards improve, their requirements for food are getting higher and higher, and the requirements for food types are becoming more and more abundant. In order to facilitate storage and transportation, some vegetables, fruits or other agricultural and sideline products are usually dried to dehydrate them. After dehydration, these products can be stored for a longer time, which is conducive to transportation. At the same time, after the food is dried and processed, the nutritional value of the food is maintained to the maximum extent. Therefore, drying equipment for vegetables, fruits or agricultural and sideline products is crucial.

[0003] However, although the existing technology has many technical advantages, the disadvantage is that during the use of the traditional steam drying furnace, the combustion of gas in the furnace body will generate water and carbon dioxide, and the furnace body is a relatively closed space. After long-term use, some water will accumulate on the inner wall of the furnace body and it is difficult to discharge. When working again, the accumulated water is heated, the liquid evaporates and absorbs heat, which affects the thermal utilization rate of the drying furnace and the water vapor will corrode the components. Utility Model Content

[0004] In view of the deficiencies of the prior art, the technical solution adopted by the utility model to solve the technical problems is: a waste heat recovery mechanism suitable for a steam drying furnace, comprising:

[0005] Support frame;

[0006] A furnace body, the bottom of which is fixedly connected to the top of the support frame;

[0007] A heat-insulating plate, the heat-insulating plate is used to keep the furnace body warm, and the inner wall of the heat-insulating plate is fixedly connected to the outer wall of the furnace body;

[0008] A water inlet coil, the water inlet coil is used to input water, and the outer wall of the water inlet coil is fixedly connected to the inner wall of the furnace body;

[0009] A steam pipe, the steam pipe is used to output steam, the outer wall of the steam pipe is fixedly connected to the inner wall of the furnace body;

[0010] A heating device, the heating device is used to heat the water source, and the heating device is located inside the furnace body;

[0011] The waste heat recovery mechanism also includes:

[0012] A recovery device, the recovery device is used to recover condensed water, and the buffer mechanism is located inside the insulation board;

[0013] The recycling device comprises a recycling box, a handle is fixedly connected to the outer wall of the recycling box, a support plate is fixedly connected to the outer wall of the support frame, the top of the support plate is slidably connected to the bottom of the recycling box, and the outer wall of the recycling box is slidably connected to the outer wall of the support frame.

[0014] Preferably, the furnace body comprises a bottom plate, the top of the bottom plate is fixedly connected to an outer shell, and the top of the bottom plate is fixedly connected to an inner shell.

[0015] Preferably, the bottom of the base plate is fixedly connected to the top of the support frame, the top of the base plate is fixedly connected to a guide frame, the top of the base plate is provided with a drainage hole, and the drainage hole is located above the recovery box.

[0016] Preferably, the inner wall of the outer shell is fixedly connected to the outer walls of the water inlet coil and the steam pipe respectively, and the inner wall of the inner shell is fixedly connected to the outer walls of the water inlet coil and the steam pipe respectively.

[0017] Preferably, the heating device includes a workbench, a gas pipe is fixedly connected to the outer wall of the workbench, an igniter is fixedly connected to the top of the workbench, and the igniter is symmetrically arranged along the central axis of the workbench, a fire outlet is fixedly connected to the top of the workbench, and an evaporation chamber is fixedly connected to the outer wall of the workbench.

[0018] Preferably, the bottom of the workbench is fixedly connected to the top of the base plate, the outer wall of the gas pipe is fixedly connected to the inner walls of the outer shell and the inner shell respectively, and the outer wall of the evaporation chamber is fixedly connected to the outer walls of the water inlet coil and the steam pipe respectively.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The utility model sets a recovery mechanism, and the accumulated water from gas combustion is guided by the guide frame into the drain hole and then falls into the recovery box below. When the amount reaches a certain amount, the recovery box can be slid out on the support plate by pulling the handle, so that water resources can be reused, which solves the problem that some accumulated water on the inner wall of the furnace body is difficult to discharge, improves the heat utilization rate of the drying furnace, and reduces the problem of water vapor corrosion of parts.

[0021] 2. The utility model improves the heat insulation effect of the furnace body through the arrangement of a heat preservation plate, an outer shell and an inner shell, and through the double-layer furnace body design, thereby improving the thermal efficiency in the furnace. The heat preservation plate further plays a heat insulation role. At the same time, the double-layer hollow shell effectively reduces the noise pollution generated during the combustion and boiling process in the furnace body, thereby playing an environmental protection role.

[0022] 2. The utility model sets a water inlet coil, which changes the traditional drying furnace's method of directly burning the heat exchanger and then transferring the heat energy to the coil. The flame directly heats the evaporation chamber. The large area of ​​the flame contact surface makes the indoor evaporation faster. At the same time, the surrounding coils effectively recycle and reuse the waste heat to achieve the effect of preheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 It is a partial cross-sectional exploded view of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the utility model at A;

[0026] Figure 4 It is a schematic diagram of the structure inside the furnace body of the utility model;

[0027] Figure 5 It is a structural schematic diagram of B of the utility model.

[0028] In the figure: 1. support frame; 2. insulation board; 3. furnace body; 31. bottom plate; 311. guide frame; 312. drain hole; 32. outer shell; 33. inner shell; 4. water inlet coil; 5. steam pipe; 6. heating device; 61. workbench; 62. gas pipe; 63. igniter; 64. fire outlet; 65. evaporation chamber; 7. recovery device; 71. recovery box; 72. handle; 73. support plate. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0030] Example: See Figure 1 - Figure 5 The utility model provides a technical solution: a waste heat recovery mechanism suitable for a steam drying furnace, comprising:

[0031] Support frame 1;

[0032] A furnace body 3, the bottom of the furnace body 3 is fixedly connected to the top of the support frame 1;

[0033] The insulation board 2 is used to keep the furnace body 3 warm, and the inner wall of the insulation board 2 is fixedly connected to the outer wall of the furnace body 3;

[0034] A water inlet coil 4, which is used to input water, and the outer wall of the water inlet coil 4 is fixedly connected to the inner wall of the furnace body 3;

[0035] A steam pipe 5, the steam pipe 5 is used to output steam, and the outer wall of the steam pipe 5 is fixedly connected to the inner wall of the furnace body 3;

[0036] A heating device 6, which is used to heat the water source and is located inside the furnace body 3;

[0037] The waste heat recovery mechanism also includes:

[0038] A recovery device 7, which is used to recover condensed water and is located inside the insulation board 2;

[0039] The recycling device 7 includes a recycling box 71, the outer wall of which is fixedly connected to a handle 72, the outer wall of the support frame 1 is fixedly connected to a support plate 73, the top of the support plate 73 is slidably connected to the bottom of the recycling box 71, and the outer wall of the recycling box 71 is slidably connected to the outer wall of the support frame 1.

[0040] The furnace body 3 includes a bottom plate 31 , an outer shell 32 is fixedly connected to the top of the bottom plate 31 , and an inner shell 33 is fixedly connected to the top of the bottom plate 31 .

[0041] The bottom of the bottom plate 31 is fixedly connected to the top of the support frame 1 , the top of the bottom plate 31 is fixedly connected with a guide frame 311 , the top of the bottom plate 31 is provided with a water discharge hole 312 , and the water discharge hole 312 is located above the recovery box 71 .

[0042] The inner wall of the outer shell 32 is fixedly connected to the outer walls of the water inlet coil 4 and the steam pipe 5 respectively, and the inner wall of the inner shell 33 is fixedly connected to the outer walls of the water inlet coil 4 and the steam pipe 5 respectively.

[0043] The heating device 6 includes a workbench 61, a gas pipe 62 is fixedly connected to the outer wall of the workbench 61, an igniter 63 is fixedly connected to the top of the workbench 61, and the igniter 63 is symmetrically arranged along the central axis of the workbench 61, a fire outlet 64 is fixedly connected to the top of the workbench 61, and an evaporation chamber 65 is fixedly connected to the outer wall of the workbench 61.

[0044] The bottom of the workbench 61 is fixedly connected to the top of the bottom plate 31, the outer wall of the gas pipe 62 is fixedly connected to the inner wall of the outer shell 32 and the inner shell 33 respectively, and the outer wall of the evaporation chamber 65 is fixedly connected to the outer wall of the water inlet coil 4 and the steam pipe 5 respectively.

[0045] Working principle:

[0046] When in use, the support frame 1 supports the furnace body 3, and the water inlet coil 4 inputs water into the furnace body 3, and the water source is input into the evaporation chamber 65. By setting the heating device 6, natural gas is input into the workbench 61 through the gas pipe 62, and an arc is struck by the igniter 63 to ignite the natural gas output from the fire outlet 64. The flame burning on the fire outlet 64 heats the evaporation chamber 65. During the heating process, the water in the evaporation chamber 65 is gradually heated to boiling, and the boiled steam is output to the required drying cabin through the steam pipe 5. The temperature inside the furnace body 3 rises, and the water inlet coil 4 is arranged in a disc shape along the inner wall of the inner shell 33. The increased furnace temperature preheats the water inlet coil 4, effectively utilizing the waste heat generated by combustion. The outer shell 32 and the inner shell 33 are not in contact, and both are fixed on the bottom plate 31. The hollow shell plays a role of heat insulation, and the insulation board 2 fixed outside the outer shell 32 further insulates heat.

[0047] The accumulated water from gas combustion can be guided by the guide frame 311 into the water hole 312. By setting up the recovery device 7, the water from the water hole 312 falls into the recovery box 71 below. When it reaches a certain amount, the recovery box 71 slides on the support plate 73 and is taken out by pulling the handle 72. Clean water produced by natural gas combustion can be reused as a water resource.

[0048] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A waste heat recovery mechanism suitable for a steam drying furnace, comprising: Support frame (1); A furnace body (3), the bottom of the furnace body (3) being fixedly connected to the top of the support frame (1); A heat-insulating plate (2), the heat-insulating plate (2) being used to keep the furnace body (3) warm, the inner wall of the heat-insulating plate (2) being fixedly connected to the outer wall of the furnace body (3); A water inlet coil (4), the water inlet coil (4) being used to input water, the outer wall of the water inlet coil (4) being fixedly connected to the inner wall of the furnace body (3); A steam pipe (5), the steam pipe (5) being used to output steam, the outer wall of the steam pipe (5) being fixedly connected to the inner wall of the furnace body (3); A heating device (6), the heating device (6) is used to heat a water source, and the heating device (6) is located inside the furnace body (3); Characterized in that the waste heat recovery mechanism also includes: A recovery device (7), the recovery device (7) is used to recover condensed water, and the recovery device (7) is located inside the insulation board (2); The recycling device (7) comprises a recycling box (71), the outer wall of the recycling box (71) is fixedly connected to a handle (72), the outer wall of the support frame (1) is fixedly connected to a support plate (73), the top of the support plate (73) is slidably connected to the bottom of the recycling box (71), and the outer wall of the recycling box (71) is slidably connected to the outer wall of the support frame (1).

2. The waste heat recovery mechanism for a steam drying furnace according to claim 1, characterized in that: The furnace body (3) comprises a bottom plate (31), the top of the bottom plate (31) is fixedly connected to an outer shell (32), and the top of the bottom plate (31) is fixedly connected to an inner shell (33).

3. The waste heat recovery mechanism for a steam drying furnace according to claim 2 is characterized in that: The bottom of the bottom plate (31) is fixedly connected to the top of the support frame (1), the top of the bottom plate (31) is fixedly connected to a guide frame (311), the top of the bottom plate (31) is provided with a water discharge hole (312), and the water discharge hole (312) is located above the recovery box (71).

4. The waste heat recovery mechanism for a steam drying furnace according to claim 2, characterized in that: The inner wall of the outer shell (32) is fixedly connected to the outer walls of the water inlet coil (4) and the steam pipe (5), respectively, and the inner wall of the inner shell (33) is fixedly connected to the outer walls of the water inlet coil (4) and the steam pipe (5), respectively.

5. The waste heat recovery mechanism for a steam drying furnace according to claim 1, characterized in that: The heating device (6) comprises a workbench (61), the outer wall of the workbench (61) is fixedly connected to a gas pipe (62), the top of the workbench (61) is fixedly connected to an igniter (63), and the igniter (63) is symmetrically arranged along the central axis of the workbench (61), the top of the workbench (61) is fixedly connected to a fire outlet (64), and the outer wall of the workbench (61) is fixedly connected to an evaporation chamber (65).

6. The waste heat recovery mechanism for a steam drying furnace according to claim 5, characterized in that: The bottom of the workbench (61) is fixedly connected to the top of the bottom plate (31), the outer wall of the gas pipe (62) is fixedly connected to the inner wall of the outer shell (32) and the inner shell (33), and the outer wall of the evaporation chamber (65) is fixedly connected to the outer wall of the water inlet coil (4) and the outer wall of the steam pipe (5).

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