High-temperature semi-coke waste heat utilization heat exchanger

Abstract

The utility model belongs to the technical field of the carbon industry, and particularly relates to a high-temperature semi-coke waste heat utilization heat exchanger which comprises an upper header mechanism, a lower header mechanism, a heat exchange tube mechanism, a circulating water mechanism and a controller, the upper end of the heat exchange tube mechanism is communicated with the upper header mechanism, and the lower end of the heat exchange tube mechanism is communicated with the lower header mechanism. The circulating water mechanism comprises a condenser, a circulating water pipe assembly, a first flow regulating valve, a temperature sensor and a water pump, the circulating water pipe assembly comprises a first circulating water pipe and a second circulating water pipe, the two ends of the first circulating water pipe in the length direction communicate with the condenser and the water pump correspondingly, and the two ends of the second circulating water pipe in the length direction communicate with the first flow regulating valve and the condenser correspondingly; compared with the prior art, the heat exchanger has the advantages that the first flow adjusting valve is adjusted according to different cooling stages, so that a better cooling effect is achieved, lower heat exchange temperature can be achieved by adjusting the power of the condenser, and the heat exchange temperature is controllable.

Description

Technical Field

[0001] This utility model belongs to the technical field of the carbon industry, specifically relating to a high-temperature semi-coke waste heat utilization heat exchanger. Background Technology

[0002] Semi-coke can replace coke and is widely used in chemical, gasification and other industries. It is superior to coke in the production of high-energy-consuming products such as metallic silicon, ferrosilicon, silicomanganese, and calcium carbide.

[0003] Currently, the cooling processes for semi-coke production mainly use water quenching and semi-dry quenching. The process generally involves immersing the calcined semi-coke directly in water or spraying water to cool it down during the descent. Then, the coal gas obtained from semi-coke production is used to dry it before storage. However, water quenching not only causes a large amount of water to evaporate and be wasted, but also creates a smoky and polluting environment. Furthermore, contact with water may produce a large amount of harmful substances such as phenols, cyanides, and sulfur compounds, polluting the environment.

[0004] Therefore, there is an urgent need for a heat exchanger that utilizes waste heat from semi-coke, avoiding water evaporation and waste, and has high cooling efficiency. Utility Model Content

[0005] This invention addresses the aforementioned problems by providing a high-temperature semi-coke waste heat utilization heat exchanger.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-temperature semi-coke waste heat utilization heat exchanger, including an upper header mechanism, a lower header mechanism, a heat exchange tube mechanism, a circulating water mechanism, and a controller. The heat exchange tube mechanism is vertical in the length direction, the upper end of the heat exchange tube mechanism is connected to the upper header mechanism, and the lower end of the heat exchange tube mechanism is connected to the lower header mechanism.

[0007] The circulating water mechanism includes a condenser, a circulating water pipe assembly, a first flow regulating valve, a temperature sensor, and a water pump. The circulating water pipe assembly includes a first circulating water pipe and a second circulating water pipe. The two ends of the first circulating water pipe are connected to the condenser and the water pump, respectively, and the two ends of the second circulating water pipe are connected to the first flow regulating valve and the condenser, respectively.

[0008] The temperature sensor is detachably connected to the first flow regulating valve and the second circulating water pipe at both ends along its length. The first flow regulating valve is connected to the upper manifold mechanism, and the water pump is connected to the lower manifold mechanism.

[0009] The controller is installed on the water pump, and the condenser, water pump, first flow regulating valve and temperature sensor are all communicatively connected to the controller.

[0010] Preferably, the upper header mechanism includes an upper header body, and the lower header mechanism includes a lower header body. The upper header body is connected to a first flow regulating valve, and the lower header body is connected to a water pump.

[0011] Preferably, the heat exchange tube mechanism includes a first heat exchange tube and a first membrane wall, the first heat exchange tube and the first membrane wall are fixedly connected, the length direction of the first heat exchange tube is vertical, the upper end of the first heat exchange tube is connected to the lower end of the upper header body, and the lower end of the first heat exchange tube is connected to the upper end of the lower header body.

[0012] Preferably, the upper header mechanism further includes an inner upper horizontal tube, and the lower header mechanism further includes an inner lower horizontal tube. The inner upper horizontal tube is horizontal in its length direction, and both ends of the inner upper horizontal tube are connected to the upper header body. The inner lower horizontal tube is horizontal in its length direction, and both ends of the inner lower horizontal tube are connected to the lower header body.

[0013] Preferably, the heat exchange tube mechanism further includes a second heat exchange tube and a second membrane wall. The second membrane wall has membrane wall holes. The second heat exchange tube and the second membrane wall are fixedly connected. The length direction of the second heat exchange tube is vertical. The upper end of the second heat exchange tube is connected to the lower end of the inner upper horizontal tube, and the lower end of the second heat exchange tube is connected to the upper end of the inner lower horizontal tube.

[0014] Preferably, the circulating water mechanism further includes a second flow regulating valve, through which the condenser is connected to the lower manifold body, and the second flow regulating valve is communicatively connected to the controller.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] (1) The two ends of the first circulating water pipe are connected to the condenser and the water pump respectively, and the two ends of the second circulating water pipe are connected to the first flow regulating valve and the condenser respectively. The water pump is connected to the lower header mechanism for indirect cooling. The cooling water does not come into direct contact with the semi-coke, thus avoiding environmental pollution and saving energy. At the same time, the water pump and the first flow regulating valve can be adjusted according to different cooling stages, thus achieving better cooling effect. By adjusting the power of the condenser, a lower heat exchange temperature can be achieved, and the heat exchange temperature is controllable.

[0017] (2) A membrane wall hole is provided on the second membrane wall. The second heat exchange tube and the second membrane wall are fixedly connected. The cooling chamber is further divided into multiple sub-chambers through the second heat exchange tube and the second membrane wall, which increases the contact area of ​​the semi-coke and is more conducive to heat exchange. At the same time, the membrane wall hole ensures that the semi-coke between different sub-chambers can flow relatively, resulting in better heat dissipation.

[0018] (3) The upper end of the second heat exchange tube is connected to the lower end of the inner upper horizontal tube, and the lower end of the second heat exchange tube is connected to the upper end of the inner lower horizontal tube. In a limited space, the contact area between the heat exchange tube mechanism and the semi-coke is increased, and the heat conduction distance between the heat exchange tube mechanism and the semi-coke is reduced, thereby improving the cooling efficiency of the semi-coke. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0020] Figure 1 Main view of a heat exchanger for utilizing waste heat from high-temperature semi-coke;

[0021] Figure 2 Side view of a heat exchanger for utilizing waste heat from high-temperature semi-coke;

[0022] Figure 3 Top view of a heat exchanger for utilizing waste heat from high-temperature semi-coke;

[0023] Figure 4 A bottom view of a heat exchanger for utilizing waste heat from high-temperature semi-coke.

[0024] Figure 5 Cross-sectional view of a heat exchanger for utilizing waste heat from high-temperature semi-coke.

[0025] Figure 6 3D view of a heat exchanger for utilizing waste heat from high-temperature semi-coke.

[0026] Figure 7 for Figure 6 A magnified view of a portion of point A in the middle;

[0027] Figure 8 for Figure 6 A magnified view of a portion of point B in the middle.

[0028] Figure label:

[0029] 1. Upper header mechanism; 11. Upper header body; 12. Inner upper horizontal tube;

[0030] 2. Lower header mechanism; 21. Lower header body; 22. Inner lower horizontal tube;

[0031] 3. Heat exchange tube mechanism, 31. First heat exchange tube, 32. First membrane wall, 33. Second heat exchange tube, 34. Second membrane wall, 35. Membrane wall hole;

[0032] 4. Condensing unit;

[0033] 5. Circulating water mechanism; 51. Water pump; 52. Circulating water pipe assembly; 53. First flow regulating valve; 54. Second flow regulating valve; 55. Temperature sensor; 56. Circulating water pipe one; 57. Circulating water pipe two. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0036] Example 1

[0037] The following is combined Figures 1 to 8 Please provide a detailed explanation of the heat exchanger for utilizing waste heat from high-temperature semi-coke, such as... Figure 1 and Figure 2 As shown, a high-temperature semi-coke waste heat utilization heat exchanger includes an upper header mechanism 1, a lower header mechanism 2, a heat exchange tube mechanism 3, a circulating water mechanism 5, and a controller. The heat exchange tube mechanism 3 is vertical in the length direction, with its upper end connected to the upper header mechanism 1 and its lower end connected to the lower header mechanism 2.

[0038] like Figure 3 and Figure 4 As shown, the circulating water mechanism 5 includes a condenser 4, a circulating water pipe assembly 52, a first flow regulating valve 53, a temperature sensor 55, and a water pump 51. The circulating water pipe assembly 52 includes a first circulating water pipe 56 and a second circulating water pipe 57. The two ends of the first circulating water pipe 56 are connected to the condenser 4 and the water pump 51 respectively in the length direction. The two ends of the second circulating water pipe 57 are connected to the first flow regulating valve 53 and the condenser 4 respectively in the length direction.

[0039] The temperature sensor 55 is detachably connected to the first flow regulating valve 53 and the second circulating water pipe 57 at both ends along its length. The first flow regulating valve 53 is connected to the upper manifold mechanism 1, and the water pump 51 is connected to the lower manifold mechanism 2.

[0040] The controller is installed on the water pump 51. The condenser 4, water pump 51, first flow regulating valve 53 and temperature sensor 55 are all connected to the controller for communication.

[0041] like Figure 3 As shown, the upper header mechanism 1 includes an upper header body 11, and the lower header mechanism 2 includes a lower header body 21. The upper header body 11 is connected to the first flow regulating valve 53, and the lower header body 21 is connected to the water pump 51.

[0042] like Figure 5 As shown, the heat exchange tube mechanism 3 includes a first heat exchange tube 31 and a first membrane wall 32. The first heat exchange tube 31 and the first membrane wall 32 are fixedly connected. The length direction of the first heat exchange tube 31 is vertical. The upper end of the first heat exchange tube 31 is connected to the lower end of the upper header body 11, and the lower end of the first heat exchange tube 31 is connected to the upper end of the lower header body 21.

[0043] like Figure 3 and Figure 4As shown, the upper header mechanism 1 also includes an inner upper horizontal tube 12, and the lower header mechanism 2 also includes an inner lower horizontal tube 22. The inner upper horizontal tube 12 is horizontal in the length direction, and both ends of the inner upper horizontal tube 12 are connected to the upper header body 11. The inner lower horizontal tube 22 is horizontal in the length direction, and both ends of the inner lower horizontal tube 22 are connected to the lower header body 21.

[0044] like Figure 5 and Figure 7 As shown, the heat exchange tube mechanism 3 also includes a second heat exchange tube 33 and a second membrane wall 34. The second membrane wall 34 has a membrane wall hole 35. The second heat exchange tube 33 and the second membrane wall 34 are fixedly connected. The length direction of the second heat exchange tube 33 is vertical. The upper end of the second heat exchange tube 33 is connected to the lower end of the inner upper horizontal tube 12, and the lower end of the second heat exchange tube 33 is connected to the upper end of the inner lower horizontal tube 22.

[0045] like Figure 6 and Figure 8 As shown, the circulating water mechanism 5 also includes a second flow regulating valve 54. The condenser 4 is connected to the lower header body 21 through the second flow regulating valve 54, and the second flow regulating valve 54 is communicatively connected to the controller.

[0046] Both the first flow regulating valve 53 and the second flow regulating valve 54 control the flow rate of the fluid by changing the valve opening, thereby adjusting parameters such as pressure, temperature and flow rate in the process to meet the fluid supply requirements under different working conditions. When the valve opening of the first flow regulating valve 53 and the second flow regulating valve 54 changes, the flow rate of the cooling water entering the lower header body 21 will change accordingly, so that the cooling water at different temperatures can come into more thorough contact with each other and the heat conduction effect is good.

[0047] Working principle of heat exchanger for high-temperature semi-coke waste heat utilization:

[0048] After the cooling water in the water pump 51 enters the lower header mechanism 2 through the second flow regulating valve 54, heat exchange begins. The cooling water in the lower header mechanism 2 moves upward and its temperature gradually increases. It passes through the heat exchange tube mechanism 3 and the upper header mechanism 1 in sequence, and then enters the condenser 4 through the first flow regulating valve 53. The low-temperature cooling water after being condensed by the condenser 4 re-enters the water pump 51, completing one cycle. Multiple cycles achieve continuous heat exchange.

[0049] As the technical solution of this utility model, the hardware settings provided are only for facilitating the implementation of braking control based on the hardware facilities. How to implement braking control and the specific braking control method are not the technical problems to be solved or the objects to be protected by this utility model. At the same time, the communication methods between the devices all adopt existing communication methods, which are not the utility model points of this application.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-temperature semi-coke waste heat utilization heat exchanger, characterized in that: It includes an upper header mechanism (1), a lower header mechanism (2), a heat exchange tube mechanism (3), a circulating water mechanism (5), and a controller. The heat exchange tube mechanism (3) is vertical in the length direction. The upper end of the heat exchange tube mechanism (3) is connected to the upper header mechanism (1), and the lower end of the heat exchange tube mechanism (3) is connected to the lower header mechanism (2). The circulating water mechanism (5) includes a condenser (4), a circulating water pipe assembly (52), a first flow regulating valve (53), a temperature sensor (55), and a water pump (51). The circulating water pipe assembly (52) includes a first circulating water pipe (56) and a second circulating water pipe (57). The two ends of the first circulating water pipe (56) are connected to the condenser (4) and the water pump (51) respectively in the length direction. The two ends of the second circulating water pipe (57) are connected to the first flow regulating valve (53) and the condenser (4) respectively in the length direction. The temperature sensor (55) is detachably connected to the first flow regulating valve (53) and the second circulating water pipe (57) at both ends along its length. The first flow regulating valve (53) is connected to the upper manifold mechanism (1), and the water pump (51) is connected to the lower manifold mechanism (2). The controller is installed on the water pump (51), and the condenser (4), water pump (51), first flow regulating valve (53) and temperature sensor (55) are all connected to the controller in communication.

2. The high-temperature semi-coke waste heat utilization heat exchanger according to claim 1, characterized in that: The upper header mechanism (1) includes an upper header body (11), and the lower header mechanism (2) includes a lower header body (21). The upper header body (11) is connected to the first flow regulating valve (53), and the lower header body (21) is connected to the water pump (51).

3. A high-temperature semi-coke waste heat utilization heat exchanger according to claim 2, characterized in that: The heat exchange tube mechanism (3) includes a first heat exchange tube (31) and a first membrane wall (32). The first heat exchange tube (31) and the first membrane wall (32) are fixedly connected. The length direction of the first heat exchange tube (31) is vertical. The upper end of the first heat exchange tube (31) is connected to the lower end of the upper header body (11), and the lower end of the first heat exchange tube (31) is connected to the upper end of the lower header body (21).

4. A high-temperature semi-coke waste heat utilization heat exchanger according to claim 3, characterized in that: The upper header mechanism (1) further includes an inner upper horizontal tube (12), and the lower header mechanism (2) further includes an inner lower horizontal tube (22). The inner upper horizontal tube (12) is horizontal in length direction, and both ends of the inner upper horizontal tube (12) are connected to the upper header body (11) respectively. The inner lower horizontal tube (22) is horizontal in length direction, and both ends of the inner lower horizontal tube (22) are connected to the lower header body (21) respectively.

5. A high-temperature semi-coke waste heat utilization heat exchanger according to claim 4, characterized in that: The heat exchange tube mechanism (3) further includes a second heat exchange tube (33) and a second membrane wall (34). The second membrane wall (34) has a membrane wall hole (35). The second heat exchange tube (33) and the second membrane wall (34) are fixedly connected. The second heat exchange tube (33) is vertical in the length direction. The upper end of the second heat exchange tube (33) is connected to the lower end of the inner upper horizontal tube (12). The lower end of the second heat exchange tube (33) is connected to the upper end of the inner lower horizontal tube (22).

6. A high-temperature semi-coke waste heat utilization heat exchanger according to claim 2, characterized in that: The circulating water mechanism (5) also includes a second flow regulating valve (54). The condenser (4) is connected to the lower manifold body (21) through the second flow regulating valve (54). The second flow regulating valve (54) is communicatively connected to the controller.

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