Finned tube type heat exchanger assembly for mosquito-repellent incense drying

Abstract

The utility model relates to the technical field of mosquito-repellent incense processing, and discloses a finned tube type heat exchanger assembly for mosquito-repellent incense drying, which comprises a heat exchanger box body, a fixed frame is arranged below the heat exchanger box body, through holes are formed in the two sides of the fixed frame, and the bottom of the fixed frame is connected with a pipeline through a flange plate bolt; a driving motor is horizontally connected to the outer side of the fixing frame through bolts, a first rotating shaft is connected to the output end of one side of the driving motor, a second rotating shaft is rotationally connected into the fixing frame, and belt wheels are clamped and fixed to one ends of the first rotating shaft and the second rotating shaft and connected through a narrow belt; and fan blades are clamped and fixed on the second rotating shaft. Through the arrangement of the fixing frame, the pipeline, the driving motor, the first rotating shaft, the second rotating shaft, the belt pulley, the narrow belt and the fan blades, cooling liquid can be subjected to air cooling when the cooling liquid is output after being used.

Description

Technical Field

[0001] The present application relates to the technical field of mosquito coil processing, and in particular to a fin-tube heat exchanger assembly for drying mosquito coils. Background Art

[0002] Mosquito-repellent coils are a type of mosquito repellent. The smoke emitted by the drugs in them can drive away mosquitoes or kill them. my country has a very long history of burning mosquito coils. Traditional mosquito coils are divided into two types: line coils and coils. There are also a lot of organic fillers, adhesives, dyes and other additives in mosquito coils to make them burn without flames.

[0003] In the industrial production of mosquito coils, high-temperature hot water at about 90°C is needed to stir the raw materials. After the raw materials are mixed, the high-temperature liquid raw materials need to be quickly cooled for the next production process. At this time, when cooling the liquid raw materials, the fins need to absorb heat multiple times to effectively cool them down. If the coolant in the internal pipeline of the fin is recycled, the cooling efficiency will be reduced. Utility Model Content

[0004] The purpose of the present application is to provide a fin-tube heat exchanger assembly for drying mosquito coils, so as to solve the problem raised in the above-mentioned background technology that in the industrial production of mosquito coils, high-temperature hot water of about 90°C is required to stir the raw materials. After the raw materials are mixed, the high-temperature liquid raw materials need to be quickly cooled to proceed to the next production process. At this time, when cooling the liquid raw materials, it is necessary to absorb heat through the fins multiple times to effectively cool down. If the coolant in the internal pipeline of the fin is recycled, the cooling efficiency will be reduced.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a fin-tube heat exchanger assembly for drying mosquito coils, comprising a heat exchanger box, a fixed frame is arranged at the bottom of the heat exchanger box, and through holes are arranged on both sides of the fixed frame, the bottom of the fixed frame is connected to a pipeline through a flange bolt, the outer horizontal bolts of the fixed frame are connected to a driving motor, the output end of one side of the driving motor is connected to a No. 1 rotating shaft, the internal rotation of the fixed frame is connected to a No. 2 rotating shaft, one end of the No. 1 rotating shaft and the No. 2 rotating shaft are clamped and fixed with pulleys, the two sets of pulleys are connected by a narrow belt, and a fan blade is clamped and fixed on the No. 2 rotating shaft.

[0006] By adopting the above technical solution, it is convenient to quickly cool down the cooling liquid.

[0007] Preferably, filter screens are welded and fixed inside the through holes on both sides of the fixed frame, and two groups of filter screens are arranged on both sides above the second rotating shaft.

[0008] By adopting the technical solution, the circulation of air is facilitated.

[0009] Preferably, water guide plates are welded on both sides of the interior of the fixed frame, and the water guide plates are arranged above the filter screen.

[0010] By adopting the above technical solution, the coolant can be guided to circulate stably.

[0011] Preferably, vertical partitions are welded on both sides of the interior of the heat exchanger box, a liquid A inlet pipe is vertically welded on the upper side of the heat exchanger box, a liquid A outlet pipe is vertically welded on the other side of the lower side of the heat exchanger box, and the bottom of the liquid A outlet pipe is connected to a fixed frame through flange bolts.

[0012] By adopting the above technical solution, the coolant can be easily put in and out.

[0013] Preferably, a liquid B inlet pipe is vertically welded on the top of the heat exchanger box, and the liquid B inlet pipe is arranged on one side of the liquid A inlet pipe, and a liquid B outlet pipe is vertically welded on the bottom of the heat exchanger box.

[0014] By adopting the above technical solution, the liquid that needs to be cooled can be easily put in and out.

[0015] Preferably, a cross-stacked tube bundle is welded and fixed inside the vertical partition inside the heat exchanger box, and two ends of the cross-stacked tube bundle are respectively located below the liquid A inlet pipe and above the liquid A outlet pipe.

[0016] By adopting the above technical solution, the circulation of internal coolant is facilitated.

[0017] Preferably, hexagonal fins are welded on the outer side of the staggered tube bundle, and the number of hexagonal fins is several groups welded on the outer side of the staggered tube bundle at intervals.

[0018] By adopting the above technical solution, the efficiency of heat absorption can be improved.

[0019] In summary, the present application includes at least one of the following beneficial effects:

[0020] (1) By providing a fixed frame, a pipeline, a driving motor, a first rotating shaft, a second rotating shaft, a pulley, a narrow belt and a fan blade, the coolant can be air-cooled when it is output after use, and the cold air can flow to the interior of the fixed frame through the holes provided in the fixed frame, thereby improving the cooling efficiency.

[0021] (2) The filter and the water guide plate can facilitate air circulation, reduce dust entry, and reduce the internal temperature of the fixed frame. The used coolant can be stably output to the outside through the water guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of this application;

[0023] Figure 2 For this application Figure 1 A schematic diagram of the cross-sectional structure from the side;

[0024] Figure 3 For this application Figure 1 Front view cross-sectional structural diagram;

[0025] Figure 4 For this application Figure 1 Enlarge the structural diagram at A;

[0026] Figure 5 For this application Figure 4 Schematic diagram of the cross-section structure.

[0027] In the figure: 1. heat exchanger housing; 2. liquid A inlet pipe; 3. liquid A outlet pipe; 4. liquid B inlet pipe; 5. liquid B outlet pipe; 6. cross-stacked tube bundle; 7. hexagonal fins; 8. fixed frame; 9. pipeline; 10. drive motor; 11. No. 1 rotating shaft; 12. No. 2 rotating shaft; 13. pulley; 14. narrow belt; 15. fan blade; 16. filter screen; 17. water guide plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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 creative work are within the scope of protection of this application.

[0029] The following is combined with Figure 1-5 The embodiments of the present application are described in further detail.

[0030] Combined with Figure 1-Figure 5, the present application provides an embodiment: a fin-tube heat exchanger assembly for drying mosquito coils, comprising a heat exchanger box 1, vertical partitions are welded on both sides of the interior of the heat exchanger box 1, which can divide the interior of the heat exchanger box 1 into three areas, namely, a coolant inlet, a coolant outlet and a high-temperature liquid raw material storage area, a liquid A inlet pipe 2 is vertically welded on one side of the upper side of the heat exchanger box 1, and the liquid A inlet pipe 2 is convenient for conveying the coolant; a liquid A outlet pipe 3 is vertically welded on the other side of the lower side of the heat exchanger box 1, and the liquid A outlet pipe 3 is convenient for outputting the coolant; and the bottom of the liquid A outlet pipe 3 is connected to a fixed frame 8 through a flange bolt, and the fixed frame 8 is convenient for fixing the outer structure.

[0031] A liquid B inlet pipe 4 is vertically welded on the top of the heat exchanger box 1, and the liquid B inlet pipe 4 is arranged on one side of the liquid A inlet pipe 2. The liquid B inlet pipe 4 is convenient for conveying the high-temperature liquid raw material; a liquid B outlet pipe 5 is vertically welded on the bottom of the heat exchanger box 1. The liquid B outlet pipe 5 is convenient for outputting the high-temperature liquid raw material.

[0032] A cross-stacked tube bundle 6 is welded and fixed inside the vertical partition of the heat exchanger box 1. The cross-stacked tube bundle 6 allows the internal coolant fluid to be better disturbed and the heat exchange to be stronger. The two ends of the cross-stacked tube bundle 6 are respectively located below the liquid A inlet pipe 2 and above the liquid A outlet pipe 3, which facilitates the transportation of the coolant and subsequent output work.

[0033] Hexagonal fins 7 are welded to the outside of the staggered tube bundle 6, and the number of hexagonal fins 7 is several groups welded at intervals on the outside of the staggered tube bundle 6. The shape of the hexagonal fins 7 can improve the efficiency of heat absorption.

[0034] Fin efficiency η f , usually, η f <1, calculated as follows:

[0035]

[0036] Where: h′——equivalent wing height;

[0037] m——Fin parameter.

[0038] Fin parameter m:

[0039]

[0040] Where: f ——fin thickness, m;

[0041] λ——Thermal conductivity of fin, W / (m·K).

[0042] Equivalent fin height of staggered hexagonal fin tube bundle:

[0043]

[0044] in,

[0045]

[0046]

[0047] Where: a——the distance between the long opposite sides of the hexagon; m;

[0048] b——the distance between the short opposite sides of the hexagon, m.

[0049] Equivalent diameter of the air side channel section:

[0050]

[0051] The fin form adopts straight fins, and the heat transfer correlation is as follows

[77] :

[0052]

[0053]

[0054] Where: s1——the fin spacing in the direction perpendicular to the air flow, m;

[0055] s2——tube spacing along the air flow direction, m;

[0056] d3——wing root diameter, m;

[0057] N——number of tubes;

[0058] α i ——Heat transfer coefficient on the air side, kJ / (m 2 ·K).

[0059] A fixed frame 8 is provided below the heat exchanger housing 1, and the fixed frame 8 plays an effective role in fixing the outer structure; and through holes are provided on both sides of the fixed frame 8 to facilitate the circulation of the outer air through the through holes; the bottom of the fixed frame 8 is connected to a pipe 9 through a flange bolt, and the pipe 9 facilitates the output of the coolant; the outer side of the fixed frame 8 is connected to a drive motor 10 through horizontal bolts, and the drive motor 10 facilitates the rotation of the structure on the output end side; the output end of one side of the drive motor 10 is connected to a No. 1 rotating shaft 11, and the No. 1 rotating shaft 11 starts To achieve effective connection and convenient synchronous rotation; the internal rotation of the fixed frame 8 is connected with the second rotating shaft 12, and the second rotating shaft 12 plays an effective connection role; one end of the No. 1 rotating shaft 11 and the No. 2 rotating shaft 12 is clamped and fixed with a pulley 13, and the pulley 13 facilitates the connection between the No. 1 rotating shaft 11 and the No. 2 rotating shaft 12; the two sets of pulleys 13 are connected by a narrow belt 14, which is convenient for synchronous rotation; the No. 2 rotating shaft 12 is clamped and fixed with a fan blade 15, and the fan blade 15 is convenient for air cooling when rotating.

[0060] Filters 16 are welded and fixed inside the through holes on both sides of the fixed frame 8. The filter 16 will not affect the air circulation and is convenient for isolating dust. Two groups of filters 16 are arranged on both sides above the second rotating shaft 12, which will not affect the rotation of the fan blades 15 and is convenient for driving the air circulation.

[0061] Water guide plates 17 are welded on both sides of the interior of the fixed frame 8 , and the water guide plates 17 can stably transport the coolant; and the water guide plates 17 are arranged above the filter screen 16 , which can effectively prevent the coolant from splashing onto the surface of the filter screen 16 .

[0062] The implementation principle of a fin-tube heat exchanger assembly for drying mosquito coils in the present application is:

[0063] First, the high-temperature liquid raw material is transported to the interior of the heat exchanger box 1 through the liquid B inlet pipe 4. At this time, the high-temperature liquid raw material will be stored in the central area separated by the partition of the heat exchanger box 1. At this time, the hexagonal fins 7 will absorb the heat brought by the high-temperature liquid raw material, and then the coolant is transported to the inner side of the heat exchanger box 1 through the liquid A inlet pipe 2. At this time, the coolant is transported into the cross-row tube bundle 6 to complete the absorption of the heat of the hexagonal fins 7, and the heated coolant is output through the liquid A outlet pipe 3. The liquid A outlet pipe 3 can stably transport the heated coolant through the water guide plates 17 on both sides of the lower fixed frame 8.

[0064] Secondly, start the driving motor 10 on the outside of the fixed frame 8 below the liquid A outlet pipe 3, and the driving motor 10 drives the No. 1 rotating shaft 11 to rotate, and the No. 1 rotating shaft 11 and the No. 2 rotating shaft 12 are both fixed with pulleys 13, and the two sets of pulleys 13 are connected by a narrow belt 14, so that during the rotation of the No. 1 rotating shaft 11, the No. 2 rotating shaft 12 is synchronously driven to rotate, and at this time, the No. 2 rotating shaft 12 drives the fan blades 15 to rotate during the rotation, and the fan blades 15 drive the heated coolant output from the liquid A outlet pipe 3 to cool down by air cooling when rotating.

[0065] Finally, when the fan blades 15 are rotating and air-cooling, the through holes set on both sides of the fixed frame 8 can facilitate the circulation of air and improve the air-cooling efficiency. The set filter 16 can not only not block the circulation of air, but also effectively prevent the entry of dust. The cooled coolant can be conveniently output through the pipe 9 under the fixed frame 8, and the cooled high-temperature liquid raw material can be conveniently output through the liquid B outlet pipe 5.

[0066] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fin-tube heat exchanger assembly for drying mosquito coils, comprising a heat exchanger housing, characterized in that: A fixed frame is arranged below the heat exchanger box body, and through holes are arranged on both sides of the fixed frame. The bottom of the fixed frame is connected to a pipeline through flange bolts, and the outer horizontal bolts of the fixed frame are connected to a driving motor. An output end on one side of the driving motor is connected to a No. 1 rotating shaft, and the internal rotation of the fixed frame is connected to a No. 2 rotating shaft. Pulleys are clamped and fixed at one end of the No. 1 rotating shaft and the No. 2 rotating shaft, and the two sets of pulleys are connected by a narrow belt. A fan blade is clamped and fixed on the No. 2 rotating shaft.

2. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 1, characterized in that: Filters are welded and fixed inside the through holes on both sides of the fixed frame, and two groups of filter screens are arranged on both sides above the second rotating shaft.

3. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 2, characterized in that: Water guide plates are welded on both sides of the interior of the fixed frame, and the water guide plates are arranged above the filter screen.

4. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 1, characterized in that: Vertical partitions are welded on both sides of the interior of the heat exchanger box, a liquid A inlet pipe is vertically welded on one side of the upper side of the heat exchanger box, a liquid A outlet pipe is vertically welded on the other side of the lower side of the heat exchanger box, and the bottom of the liquid A outlet pipe is connected to a fixed frame through flange bolts.

5. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 4, characterized in that: A liquid B inlet pipe is vertically welded on the upper side of the heat exchanger housing, and the liquid B inlet pipe is arranged on one side of the liquid A inlet pipe. A liquid B outlet pipe is vertically welded on the lower side of the heat exchanger housing.

6. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 5, characterized in that: A cross-stacked tube bundle is welded and fixed inside the vertical partition of the heat exchanger box, and two ends of the cross-stacked tube bundle are respectively located below the liquid A inlet pipe and above the liquid A outlet pipe.

7. The fin-tube heat exchanger assembly for drying mosquito coils according to claim 6, characterized in that: The outer side of the staggered tube bundle is welded with hexagonal fins, and the number of the hexagonal fins is several groups and they are welded at intervals on the outer side of the staggered tube bundle.

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