Thermoelectric coupling preheater

Abstract

The utility model provides a thermoelectric coupling preheater, which relates to the technical field of preheaters and comprises a tank body, a tank cover is arranged on one side of the tank body, first flanges are arranged on the surfaces of the tank body and the tank cover, a liquid inlet is formed in the surface of the tank cover, a liquid outlet is formed in the surface of the tank body, and a heat exchange tube is arranged in the tank body. Due to the fact that the length of the spiral path is larger than that of the linear path, liquid must sequentially bypass curves in the spiral channel, the movement speed of the liquid is higher, the heat exchange pipe is heated more quickly, materials can enter the heat exchange pipe from the feeding pipe during heat exchange of the liquid, and due to the fact that the internal thread fins are arranged in the heat exchange pipe as well, the heat exchange pipe can be heated more quickly. In this way, the flowing speed of materials can be increased when the materials flow through the internal thread fins, heat exchange can be carried out between the materials and the heat exchange pipes more quickly, the heat exchange efficiency is greatly improved, and the defect that the flowing speed of heat source liquid and the materials entering the tank body cannot be increased so that the heat exchange efficiency can be more effectively improved is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of preheaters, in particular to a thermoelectric coupling preheater. Background Art

[0002] In chemical production, some raw materials need to be preheated before use. The existing preheating usually uses hot water to exchange heat with the raw materials to achieve the preheating effect, and the preheating is usually carried out by a preheater.

[0003] Existing preheaters mostly use heat exchange fins to increase the heat exchange efficiency, but the heat exchange fins are mostly straight, which cannot increase the flow rate of the heat source liquid and materials entering the tank body, thereby failing to effectively improve the heat exchange efficiency. Utility Model Content

[0004] The utility model aims to solve the shortcoming in the prior art that the circulation speed of the heat source liquid and the material entering the tank body can not be increased so as to more effectively improve the heat exchange efficiency, and proposes a thermoelectric coupling preheater.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a thermoelectric coupling preheater, comprising a tank body, a tank cover is provided on one side of the tank body, the surfaces of the tank body and the tank cover are both provided with a first flange, the surface of the tank cover is provided with a liquid inlet, the surface of the tank body is provided with a liquid outlet, a heat exchange tube is provided inside the tank body, a feed pipe is provided on one side of the heat exchange tube, a discharge pipe is provided on one side of the feed pipe, second flanges are provided on both sides of the heat exchange tube, the surface of the feed pipe is provided with a second flange, and the surface of the discharge pipe is provided with a second flange, the surfaces of the four second flanges are provided with card grooves, filter screens are provided on both sides of the heat exchange tube, internal threaded fins are provided inside the heat exchange tube, external threaded fins are provided inside the tank body, and support frames are provided on both sides of the external threaded fins.

[0006] Preferably, the tank body and the tank cover are connected via a first flange, the liquid inlet is located in the middle of the tank cover, the liquid outlet is located on the bottom surface of the tank body, and the liquid outlet is located at an end away from the liquid inlet.

[0007] Preferably, the feed pipe and the discharge pipe are symmetrical, and one end of the feed pipe and the discharge pipe both pass through the tank body.

[0008] Preferably, the heat exchange tube is set up in the middle of the feed tube and the discharge tube, and the feed tube and the discharge tube are connected to the heat exchange tube through a second flange.

[0009] Preferably, the filter is installed in a groove on the second flange of the feed pipe and the second flange surface of the heat exchange tube, and another filter is installed in a groove on the second flange of the discharge pipe and the second flange surface of the heat exchange tube.

[0010] Preferably, the internally threaded fins, the externally threaded fins and the support frame are all arranged in the middle of the two filter screens.

[0011] Preferably, the externally threaded fin is set up in the middle of two support frames, the support frames are installed on the bottom surface of the heat exchange tube, and the support frames and the externally threaded fin are both set up on the surface of the heat exchange tube.

[0012] Beneficial Effects

[0013] In the utility model, a heat exchange tube is arranged inside the tank body, and a feed tube and a discharge tube on both sides of the heat exchange tube are installed on both sides of the heat exchange tube through a second flange, an internal threaded fin is arranged inside the heat exchange tube, and filter screens are arranged in the card grooves connected by the second flanges on both sides of the heat exchange tube, and the external threaded fins on the outside of the heat exchange tube are welded to the heat exchange tube, and the support frames on both sides of the external threaded fins are also welded to the surface of the heat exchange tube. When in use, the liquid heated by the thermocouple enters the inside of the tank body through the liquid inlet on the surface of the tank cover, and the liquid entering the inside of the tank body reaches the other end of the tank body through the external threaded fins on the surface of the heat exchange tube. When flowing through the external threaded fins, because the length of the spiral path is longer than the straight path, the liquid must bypass the curves in the spiral channel in turn, which will make the liquid move faster, thereby heating the heat exchange tube faster. When the liquid is exchanging heat, the material will also enter the heat exchange tube from the feed pipe. Because the inside of the heat exchange tube is also provided with internal threaded fins, the material will also increase the flow rate when flowing through the internal threaded fins, thereby exchanging heat with the heat exchange tube faster, greatly improving the heat exchange efficiency, and solving the problem of not being able to increase the circulation speed of the heat source liquid and material entering the tank body, thereby more effectively improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an isometric view of the utility model;

[0015] Figure 2 It is a right side view of the utility model;

[0016] Figure 3 For the utility model Figure 2 A cross-sectional view of

[0017] Figure 4 It is a partial stereogram of the utility model.

[0018] Legend:

[0019] 1. Tank body; 2. Tank cover; 3. First flange; 4. Liquid inlet; 5. Feed pipe; 6. Slot; 7. Filter; 8. Internally threaded fins; 9. Heat exchange tube; 10. Liquid outlet; 11. Discharge pipe; 12. Second flange; 13. Externally threaded fins; 14. Support frame. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0021] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0023] Reference Figure 1-4 A thermoelectric coupling preheater comprises a tank body 1, a tank cover 2 is arranged on one side of the tank body 1, a first flange 3 is arranged on the surface of the tank body 1 and the tank cover 2, a liquid inlet 4 is arranged on the surface of the tank cover 2, a liquid outlet 10 is arranged on the surface of the tank body 1, a heat exchange tube 9 is arranged inside the tank body 1, a feed pipe 5 is arranged on one side of the heat exchange tube 9, a discharge pipe 11 is arranged on one side of the feed pipe 5, second flanges 12 are arranged on both sides of the heat exchange tube 9, a second flange 12 is arranged on the surface of the feed pipe 5, and a second flange 12 is arranged on the surface of the discharge pipe 11, and a card groove 6 is arranged on the surface of the four second flanges 12, a filter screen 7 is arranged on both sides of the heat exchange tube 9, an internal threaded fin 8 is arranged inside the heat exchange tube 9, an external threaded fin 13 is arranged inside the tank body 1, and support frames 14 are arranged on both sides of the external threaded fin 13, the tank body 1 and the tank cover 2 are connected by the first flange 3, the liquid inlet 4 is set in the middle of the tank cover 2, and the liquid outlet 10 is set On the bottom surface of the tank body 1, the liquid outlet 10 is set at the end away from the liquid inlet 4, the feed pipe 5 and the discharge pipe 11 are symmetrical, and one end of the feed pipe 5 and the discharge pipe 11 both pass through the tank body 1, the heat exchange tube 9 is set in the middle of the feed pipe 5 and the discharge pipe 11, and the feed pipe 5 and the discharge pipe 11 are connected to the heat exchange tube 9 through the second flange 12, the filter screen 7 is installed in the second flange 12 of the feed pipe 5 and the second flange 12 of the heat exchange tube 9. The second flange 12 of the discharge pipe 11 and the second flange 12 of the heat exchange tube 9 are provided in the groove 6, the internal threaded fin 8, the external threaded fin 13 and the support frame 14 are all set in the middle of the two filter screens 7, the external threaded fin 13 is set in the middle of the two support frames 14, the support frame 14 is installed on the bottom surface of the heat exchange tube 9, and the support frame 14 and the external threaded fin 13 are both set on the surface of the heat exchange tube 9.

[0024] A tank cover 2 is provided on one side of the tank body 1. The tank cover 2 is installed on the tank body 1 through a first flange 3 and the tank body 1 and the first flange 3 of the tank cover 2 are tightly fixed together by fixing bolts. In this way, when it is necessary to repair the internal components of the tank body 1, the fixing bolts of the first flange 3 can be removed, and the tank cover 2 can be removed from the tank body 1 to repair the inside of the tank body 1. A heat exchange tube 9 is provided inside the tank body 1. The feed pipe 5 and the discharge pipe 11 on both sides of the heat exchange tube 9 are installed on both sides of the heat exchange tube 9 through a second flange 12. Because the surface of the second flange 12 is provided with a groove 6, when the feed pipe 5 and the discharge pipe 11 are installed, the filter screen 7 can be installed in the groove 6 between the two second flanges 12, so that the filter screen 7 can be used to enter the tank body 1 and discharge The raw materials coming out of the tank body 1 are filtered to reduce impurities in the raw materials. An internally threaded fin 8 is provided inside the heat exchange tube 9. The range of movement of the internally threaded fin 8 will be limited by the two filter screens 7. When the internally threaded fin 8 or the filter screen 7 needs to be replaced, the fixing bolts of the second flange 12 can be removed, so that the feed pipe 5 and the discharge pipe 11 can be removed from the heat exchange tube 9, and the internally threaded fin 8 and the filter screen 7 inside the heat exchange tube 9 can be replaced or repaired. The externally threaded fin 13 on the outside of the heat exchange tube 9 is welded to the heat exchange tube 9, and the support frames 14 on both sides of the externally threaded fin 13 are also welded to the surface of the heat exchange tube 9. The externally threaded fin 13 is set in the middle of the two support frames 14, and the support frame 14 will support the weight of the heat exchange tube 9 to prevent the heat from being damaged. The weight of the heat pipe 9 increases when the raw material enters, thereby damaging the external threaded fin 13. When in use, the liquid heated by the thermocouple enters the interior of the tank body 1 through the liquid inlet 4 on the surface of the tank cover 2. The liquid is heated by the electric boiler, and the peak-valley difference of the power supply electricity fee is utilized. During the power supply valley period, water is used as the heating heat medium for heating and stored in the hot water storage tank. During the power supply peak period, the electric boiler is turned off, and the hot water stored in the hot water storage tank is transported by the water pump to the liquid inlet 4 on the surface of the tank cover 2. In this way, it can use peak shaving and valley filling, and can make full use of the cheap valley electricity price to achieve the purpose of economic operation, so that both users and power supply departments can benefit from it. The liquid entering the tank body 1 reaches the other end of the tank body 1 through the external threaded fin 13 on the surface of the heat exchange tube 9 And discharge from the tank body 1 from the liquid outlet 10. When flowing through the external threaded fins 13, because the length of the spiral path is longer than the straight path, the liquid must bypass the curves in the spiral channel in turn, which will make the liquid move faster, thereby heating the heat exchange tube 9 faster. When the liquid heats the heat exchange tube 9, the material will also enter the heat exchange tube 9 from the feed pipe 5. Because the inside of the heat exchange tube 9 is also provided with internal threaded fins 8, the material must bypass the curves in the spiral channel in turn when flowing through the internal threaded fins 8, thereby increasing the flow rate of the material, thereby exchanging heat with the heated heat exchange tube 9 faster, greatly improving the heat exchange efficiency. In this way, when the material is discharged from the discharge pipe 11, the material has been preheated to a certain temperature, so that the material can enter the next process. Specific embodiment 2:

[0026] Reference Figure 1-4 A thermoelectric coupling preheater is further based on the basic structure in the specific embodiment 1, and a head is provided at the other end of the tank body 1, and a first flange 3 is also provided at the other end of the tank body 1 and the surface of the head, and the head is installed on the tank body 1 through the first flange 3. The head is set at the end away from the tank cover 2. In this way, when the discharge pipe 11 is damaged, the fixing bolts on the first flange 3 of the head can be removed to remove the head from the tank body 1, so that only the discharge pipe 11 is repaired, and all components inside the tank body 1 do not need to be removed.

[0027] In summary:

[0028] 1. A heat exchange tube 9 is arranged inside the tank body 1. The feed tube 5 and the discharge tube 11 on both sides of the heat exchange tube 9 are installed on both sides of the heat exchange tube 9 through the second flange 12. An internal threaded fin 8 is arranged inside the heat exchange tube 9. The card slots 6 connected by the second flanges 12 on both sides of the heat exchange tube 9 are provided with filter screens 7. The external threaded fins 13 on the outside of the heat exchange tube 9 are welded to the heat exchange tube 9. The support frames 14 on both sides of the external threaded fins 13 are also welded to the surface of the heat exchange tube 9. When in use, the liquid heated by the thermocouple enters the inside of the tank body 1 through the liquid inlet 4 on the surface of the tank cover 2. The liquid entering the tank body 1 reaches the external threaded fins 13 on the surface of the heat exchange tube 9. At the other end of the tank body 1, when flowing through the external threaded fins 13, because the length of the spiral path is longer than the straight path, the liquid must bypass the curves in the spiral channel in turn, which will make the liquid move faster, thereby heating the heat exchange tube 9 faster. When the liquid is exchanging heat, the material will also enter the heat exchange tube 9 from the feed pipe 5. Because the inside of the heat exchange tube 9 is also provided with internal threaded fins 8, the flow rate of the material will be increased when flowing through the internal threaded fins 8, thereby exchanging heat with the heat exchange tube 9 faster, greatly improving the heat exchange efficiency, and solving the problem of not being able to increase the circulation speed of the heat source liquid and material entering the tank body 1, thereby more effectively improving the heat exchange efficiency.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A thermoelectric coupling preheater, comprising a tank (1), characterized in that: A tank cover (2) is provided on one side of the tank body (1), and the surfaces of the tank body (1) and the tank cover (2) are both provided with a first flange (3), the surface of the tank cover (2) is provided with a liquid inlet (4), and the surface of the tank body (1) is provided with a liquid outlet (10), a heat exchange tube (9) is provided inside the tank body (1), a feed tube (5) is provided on one side of the heat exchange tube (9), and a discharge tube (11) is provided on one side of the feed tube (5), and second flanges are provided on both sides of the heat exchange tube (9). (12), a second flange (12) is provided on the surface of the feed pipe (5), and a second flange (12) is provided on the surface of the discharge pipe (11), and a clamping groove (6) is provided on the surface of the four second flanges (12), a filter screen (7) is provided on both sides of the heat exchange tube (9), an internal threaded fin (8) is provided inside the heat exchange tube (9), an external threaded fin (13) is provided inside the tank body (1), and support frames (14) are provided on both sides of the external threaded fin (13).

2. A thermoelectric coupling preheater according to claim 1, characterized in that: The tank body (1) and the tank cover (2) are connected via a first flange (3); the liquid inlet (4) is located in the middle of the tank cover (2); the liquid outlet (10) is located on the bottom surface of the tank body (1), and the liquid outlet (10) is located at an end away from the liquid inlet (4).

3. A thermoelectric coupling preheater according to claim 1, characterized in that: The feed pipe (5) and the discharge pipe (11) are in a symmetrical state, and one end of the feed pipe (5) and the discharge pipe (11) both pass through the tank body (1).

4. A thermoelectric coupling preheater according to claim 1, characterized in that: The heat exchange pipe (9) is arranged between the feed pipe (5) and the discharge pipe (11), and the feed pipe (5) and the discharge pipe (11) are connected to the heat exchange pipe (9) via a second flange (12).

5. A thermoelectric coupling preheater according to claim 1, characterized in that: The filter screen (7) is installed in a groove (6) on the surface of the second flange (12) of the feed pipe (5) and the second flange (12) of the heat exchange tube (9), and another filter screen (7) is installed in a groove (6) on the surface of the second flange (12) of the discharge pipe (11) and the second flange (12) of the heat exchange tube (9).

6. A thermoelectric coupling preheater according to claim 1, characterized in that: The internally threaded fin (8), the externally threaded fin (13) and the support frame (14) are all arranged in the middle of the two filter screens (7).

7. A thermoelectric coupling preheater according to claim 1, characterized in that: The externally threaded fin (13) is set in the middle of two support frames (14), the support frame (14) is installed on the bottom surface of the heat exchange tube (9), and the support frame (14) and the externally threaded fin (13) are both set on the surface of the heat exchange tube (9).

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