A high temperature carbon particle cooling device and system

Abstract

The present application relates to a kind of high-temperature carbon particle cooling device and system, device includes particle channel and at least one heat exchange channel being arranged in particle channel, heat exchange channel is arranged along the axial direction of particle channel. Heat exchange channel includes at least one spiral coil heat exchange coil. When heat exchange channel includes multiple heat exchange coils, multiple heat exchange coils are coaxially arranged, multiple heat exchange coils are connected in parallel or connected in series or mixed connection of series-parallel, and the connection between heat exchange coil is located outside the channel of high-temperature carbon particle flow. Cooling device is recycled to the waste heat of high-temperature carbon particle efficiently and high grade, to reduce the demand for other energy, improve the comprehensive utilization rate of energy. The connection between heat exchange coil is located outside the channel of particle flow, avoid the direct long-term contact with high-temperature carbon particle and be damaged by connection, there is no heat exchange medium leakage due to the quality problem of connection in the channel inside the flow of high-temperature carbon particle.

Description

Technical Field

[0001] This invention relates to the field of cooler technology, and more particularly to a high-temperature carbon particle cooling device and system. Background Technology

[0002] Cooling high-temperature carbon particles is an essential step in carbon production. Traditional processes use a funnel-shaped jacketed structure where high-temperature carbon particles fall from the center of the funnel, and a large amount of cooling water flows through the gap in the jacket. After heat exchange with the high-temperature carbon particles, they are cooled. The cooling water is then heated and transported to a cooling tower where it is cooled by air and becomes cold water. It is then driven by a cooling water circulation pump to re-enter the equipment to cool the high-temperature carbon particles. This cooling method has a limited contact area between the high-temperature carbon particles and the equipment, requiring increased cooling water flow to improve efficiency. The cooling water circulation pump is energy-intensive, and the heat from the high-temperature carbon particles is not utilized, resulting in significant energy waste. Furthermore, the cooling tower not only adds extra equipment but also consumes more energy, and the water vapor generated during cooling is directly released into the environment, which does not meet energy conservation and emission reduction requirements.

[0003] The invention patent with publication number CN110631380A provides a steam generator for calcined coke hoppers, including an upper flange, a lower flange, an upper header, multiple sets of heat exchange tubes, and a lower header. The upper header includes four sets of first 90° elbows and four sets of first straight pipes, and the lower header includes four sets of second 90° elbows and four sets of second straight pipes. The four sets of first 90° elbows and four sets of first straight pipes are welded into a square ring, and the four sets of second 90° elbows and four sets of second straight pipes are also welded into a square ring. The bottom end of the upper header has multiple sets of evenly spaced first mounting holes. The top and bottom ends of the multiple sets of heat exchange tubes are straight pipe sections. The top end of the lower header has multiple sets of evenly spaced second mounting holes. The front and rear ends of the rectangular cage-like body gradually taper from bottom to top, while the left and right ends gradually expand from bottom to top. This design ensures welding quality, higher heat exchange efficiency, smooth material discharge, and avoids material being affected by cold during discharge. However, the connection between the heat exchange tubes and the upper and lower headers is directly exposed to the high-temperature carbon particles flowing through the channel. When the high-temperature carbon particles of about 1000°C fall from a height under the action of gravity, the connection between the heat exchange tubes and the upper and lower headers is easily damaged by the high temperature and the impact of the particles. This can lead to problems such as leakage of the heat exchange medium inside the heat exchange tubes, which in turn shortens the service life of the high-temperature carbon particle cooling device. More importantly, this type of evaporator uses natural circulation during operation. Due to the area ratio between the upper and lower header tubes and each heat exchange tube and the water vapor distribution, it is destined that the requirements for smooth natural circulation of steam production cannot be met, which can easily cause equipment damage due to poor natural circulation. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a high-temperature carbon particle cooling device and system, which solves the technical problems of heat exchange coils easily leaking internal heat exchange medium into high-temperature carbon particles and ensuring smooth water vapor circulation.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the high-temperature carbon particle cooling device of the present invention includes a particle channel and at least one heat exchange channel disposed within the particle channel, wherein the heat exchange channel is arranged along the axial direction of the particle channel.

[0008] The heat exchange channel includes at least one heat exchange coil that is spirally wound.

[0009] When the heat exchange channel includes multiple heat exchange coils, the multiple heat exchange coils are coaxially arranged, and the multiple heat exchange coils are connected in parallel, in series, or in a mixed series-parallel connection. The connection points between the heat exchange coils are all located outside the channel through which the high-temperature carbon particles flow.

[0010] Optionally, when the heat exchange channel includes multiple heat exchange coils, the heat exchange channel further includes series connecting pipes;

[0011] Any two adjacent heat exchange coils are connected by the series connection pipe, and the connection between the heat exchange coil and the series connection pipe is located outside the channel for the flow of high-temperature carbon particles.

[0012] A total inlet for the heat exchange medium is provided on the heat exchange coil located at the outlet of the particle channel, and a total outlet for the heat exchange medium is provided on the heat exchange coil located at the inlet of the particle channel.

[0013] Optionally, when the heat exchange channel includes multiple heat exchange coils, the heat exchange channel further includes a first parallel connecting pipe and a second parallel connecting pipe;

[0014] The inlets and outlets of the multiple heat exchange coils are respectively connected to the first parallel connecting pipe and the second parallel connecting pipe;

[0015] The first parallel connecting pipe is provided with a total inlet for the heat exchange medium, and the second parallel connecting pipe is provided with a total outlet for the heat exchange medium. The total inlet for the heat exchange medium is located at the outlet of the particle channel, and the total outlet for the heat exchange medium is located at the inlet of the particle channel.

[0016] Optionally, the heat exchange channel is a hollow structure with openings at both ends, and a hollow interlayer is provided between the heat exchange channel and the particle channel;

[0017] High-temperature carbon particles entering from the inlet of the particle channel pass through the heat exchange channel and the hollow interlayer and are discharged from the outlet of the particle channel.

[0018] The connections between the heat exchange coils are all located outside the particle channel.

[0019] Optionally, the heat exchange channel is a hollow sealed structure with openings at both ends, and a hollow interlayer is provided between the heat exchange channel and the particle channel;

[0020] High-temperature carbon particles entering from the inlet of the particle channel pass through the heat exchange channel only and then exit from the outlet of the particle channel.

[0021] The connections between the heat exchange coils are all located inside the hollow interlayer and / or outside the particle channel.

[0022] Optionally, in the heat exchange coil, the gap width between the walls of adjacent pipes is smaller than the minimum particle size of the high-temperature carbon particles.

[0023] The gap width between adjacent heat exchange coils and between the walls of adjacent pipes is less than the minimum particle size of high-temperature carbon particles.

[0024] Optionally, in the heat exchange coil, a gap is provided between the pipe walls of adjacent pipes, and a first connecting fin is provided in the gap;

[0025] A gap is provided between adjacent heat exchange coils and between the walls of adjacent pipes, and a second connecting fin is provided in the gap.

[0026] Optionally, the heat exchange coil is circumferentially coiled along the inner wall of the particle channel, with the bends set in an arc shape;

[0027] A gap is provided between the pipe walls of adjacent heat exchange coils, and a first connector is provided in the gap; both ends of the first connector are bent and each is provided with a first arc-shaped groove, and the first arc-shaped groove is snapped or welded to the outer surface of the pipe connection of the heat exchange coil.

[0028] A second connector is provided in the gap between the heat exchange coil at the inlet end of the heat exchange channel and the end face of the particle channel at the inlet end; a third connector is provided in the gap between the heat exchange coil at the outlet end of the heat exchange channel and the end face of the particle channel at the outlet end; one end of the second connector and the third connector is bent and has a second arc-shaped groove, and the second arc-shaped groove is engaged or welded to the outer surface of the pipe connection of the corresponding heat exchange coil.

[0029] Optionally, flanges are provided at both the outlet and inlet ends of the particle channel.

[0030] Optionally, a support is provided at the outlet end of the particle channel, and the heat exchange coil located at the outlet end of the particle channel is mounted on the support.

[0031] A high-temperature carbon particle cooling system includes a steam drum, a forced circulation pump, and multiple high-temperature carbon particle cooling devices as described above.

[0032] Multiple high-temperature carbon particle cooling devices are connected to form an evaporation mechanism, and the steam drum, the forced circulation pump, and the evaporation mechanism are circulated together.

[0033] Optionally, the steam drum is provided with a saturated steam outlet and a water inlet.

[0034] (III) Beneficial Effects

[0035] The high-temperature carbon particle cooling device is used to cool high-temperature carbon particles and simultaneously recover the waste heat of the high-temperature carbon particles in a high-efficiency and high-grade manner to generate steam, heat water or other process media, thereby reducing the demand for other energy sources, improving the overall energy utilization efficiency, reducing energy waste and lowering production costs.

[0036] Multiple heat exchange coils are arranged sequentially along the axial direction of the particle channel. All heat exchange coils are coaxially arranged, and adjacent heat exchange coils abut against each other or are spaced at a set distance. This effectively increases the contact area between the high-temperature carbon particles and the heat exchange coils in the particle channel, improves the heat exchange efficiency, and thus increases the cooling efficiency of the high-temperature carbon particles, reducing the waste of heat energy.

[0037] Multiple heat exchange coils can be connected in parallel, in series, or in a hybrid series-parallel connection. The coils can be connected end-to-end in a series configuration, with the heat exchange medium flowing sequentially through the coil cavities. Alternatively, multiple heat exchange coils can be connected in parallel, with the heat exchange medium flowing through the coil cavities simultaneously. Regarding hybrid series-parallel connections, a predetermined number of heat exchange coils can be connected in series to form a heat exchange coil group, which can then be connected in parallel. Alternatively, they can be connected in parallel to form a heat exchange coil group, which can then be connected in series. This allows for better control of the temperature and flow rate of each heat exchange coil; for example, the temperature can be optimized by first connecting them in series and then the flow can be distributed in parallel to meet complex process requirements.

[0038] The connections between the heat exchange coils are all located outside the flow channels of high-temperature carbon particles, avoiding direct and long-term contact between the connections and the high-temperature carbon particles, thus preventing damage. Therefore, there will be no leakage of heat exchange medium due to quality problems at the connections inside the flow channels of high-temperature carbon particles, and the reliability of the entire equipment is greatly improved. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the external heat exchange coil connection structure of the present invention;

[0040] Figure 2 This is a schematic diagram of the built-in structure at the heat exchanger coil connection of the present invention;

[0041] Figure 3 This is a top view of the dual-channel heat exchange channel structure of the present invention;

[0042] Figure 4 This is a side view of the dual-channel heat exchange channel structure of the present invention;

[0043] Figure 5 This is a schematic diagram of the heat exchange channel of the present invention, which includes multiple heat exchange coils;

[0044] Figure 6 This is a schematic diagram of the heat exchange channel of a single heat exchange coil of the present invention;

[0045] Figure 7 This is a perspective view of Embodiment 1 of the present invention;

[0046] Figure 8 This is a front view schematic diagram of Embodiment 1 of the present invention;

[0047] Figure 9 This is a side view schematic diagram of Embodiment 2 of the present invention;

[0048] Figure 10 This is a front view schematic diagram of Embodiment 2 of the present invention;

[0049] Figure 11 This is a three-dimensional schematic diagram of Embodiment 4 of the present invention;

[0050] Figure 12 This is a front view of Embodiment 4 of the present invention;

[0051] Figure 13 This is a schematic diagram of the installation of the connecting fins and connectors of the present invention;

[0052] Figure 14 This is a schematic diagram of the structure of the first connector of the present invention;

[0053] Figure 15 This is a schematic diagram of the structure of the second connector of the present invention;

[0054] Figure 16 This is a schematic diagram of the structure of the third connector of the present invention;

[0055] Figure 17 This is a schematic diagram of the installation of the support member of the present invention;

[0056] Figure 18This is a schematic diagram of the high-temperature carbon particle cooling system of the present invention.

[0057] [Explanation of Labels in the Attached Image]

[0058] 1: Particle channel; 11: First side plate; 12: Second side plate; 13: Third side plate; 111: Mounting hole;

[0059] 2: Heat exchange channel; 20: Heat exchange coil; 21: Outlet; 22: Inlet; 23: Hollow sandwich layer;

[0060] 3: Series connecting pipe;

[0061] 41: Total inlet of heat exchange medium; 42: Total outlet of heat exchange medium;

[0062] 51: First parallel connecting pipe; 52: Second parallel connecting pipe;

[0063] 61: First connecting fin;

[0064] 70: First connector; 71: Second connector; 72: Third connector; 73: First arc-shaped groove; 74: Second arc-shaped groove;

[0065] 8: Flange; 81: Upper flange; 82: Lower flange;

[0066] 9: Support components;

[0067] 100: Evaporation mechanism; 101: Steam drum; 1011: Saturated steam outlet; 1012: Water inlet; 102: Forced circulation pump; 103: First control valve; 104: Vent valve; 105: Second control valve. Detailed Implementation

[0068] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with respect to... Figure 1 The orientation is used as a reference.

[0069] While exemplary embodiments of the invention are shown in the accompanying drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention can be understood more clearly and thoroughly, and that the scope of the invention can be fully conveyed to those skilled in the art.

[0070] This invention provides a high-temperature carbon particle cooling device for cooling high-temperature carbon particles and simultaneously recovering the waste heat of the high-temperature carbon particles with high efficiency and high grade to generate steam, heat water or other process media, thereby reducing the demand for other energy sources, improving the overall energy utilization efficiency, reducing energy waste and lowering production costs.

[0071] like Figure 1 and Figure 2 As shown, the high-temperature carbon particle cooling device includes a particle channel 1 and at least one heat exchange channel 2 disposed within the particle channel 1; Figure 3 and Figure 4 As shown, this is a dual-channel heat exchange channel 2, and multiple heat exchange channels 2 can also be provided. The particle channel 1 has a hollow structure with open ends and is connected between the upper and lower connection ports of the equipment, serving to prevent the high-temperature carbon particles from overflowing. The heat exchange channels 2 are arranged along the axial direction of the particle channel 1. When there are multiple heat exchange channels 2, they are arranged in a side-by-side. The high-temperature carbon particles entering from the inlet of the particle channel 1 simultaneously enter multiple heat exchange channels 2. As the high-temperature carbon particles flow along the particle channel 1, they exchange heat with the heat exchange channels 2. The heat exchange channels 2 cool the high-temperature carbon particles while absorbing and utilizing the heat from the high-temperature carbon particles, achieving efficient and high-grade heat energy recovery.

[0072] like Figure 5 and Figure 6As shown, each heat exchange channel 2 includes at least one heat exchange coil 20, preferably multiple coils. The heat exchange coil 20 is spirally wound to form a hollow structure. The heat exchange coil 20 is filled with a heat exchange medium. The gap in the middle of the hollow structure of the heat exchange coil 20 serves as a flow channel for high-temperature carbon particles. The high-temperature carbon particles pass through the particle channel 1 and contact the outer wall of the heat exchange coil 20 to exchange heat, heating the heat exchange medium in the cavity of the heat exchange coil 20, which is then forcibly circulated away by the circulation system. When the heat exchange channel 2 includes multiple heat exchange coils 20, the multiple heat exchange coils 20 are arranged sequentially along the axial direction of the particle channel 1. The multiple heat exchange coils 20 are coaxially arranged. The pipe walls of adjacent pipes in adjacent heat exchange coils 20 are connected to each other or spaced apart by a set distance. The outer walls of multiple pipes in the same heat exchange coil 2 are connected to each other or spaced apart by a set distance, forming the heat exchange channel 2. The outer wall of the heat exchange coil 20 effectively increases the contact area between the high-temperature carbon particles in the particle channel 1 and the heat exchange coil 20, improving heat exchange efficiency and thus increasing the cooling efficiency of the high-temperature carbon particles. Adjacent heat exchange coils 20 can also be partially overlapped and nested, connecting multiple heat exchange coils 20 to form a heat exchange channel 2. Preferably, the pipe of the heat exchange coil 20 is coiled circumferentially along the inner wall of the particle channel 1 in a spiral structure that matches the shape of the inner wall of the particle channel 1. During operation, the high-temperature carbon particles pass through the gap in the middle of the heat exchange channel 2 and exchange heat with the heat exchange medium inside the heat exchange coil 20. The shape of the heat exchange coil 20 matches the shape of the inner wall of the particle channel 1 and is arranged along the inner wall of the particle channel 1, increasing the surface area of ​​the heat exchange coil 20, thereby increasing the contact area with the high-temperature carbon particles and improving heat exchange efficiency.

[0073] Furthermore, the multiple heat exchange coils 20 are connected in parallel, in series, or in a hybrid series-parallel connection. The multiple heat exchange coils 20 are connected end-to-end in a series structure, with the heat exchange medium flowing sequentially through the cavities of the multiple heat exchange coils 20; or the multiple heat exchange coils 20 are connected in parallel, with the heat exchange medium flowing simultaneously through the cavities of the multiple heat exchange coils 20. Regarding the hybrid series-parallel connection, a predetermined number of heat exchange coils 20 can be connected in series to form a heat exchange coil group, and then the multiple heat exchange coil groups can be connected in parallel, or they can be connected in parallel to form a heat exchange coil group and then connected in series. This facilitates the control of the temperature and flow rate of each heat exchange coil 20. For example, the temperature can be optimized by first connecting in series and then the flow can be distributed in parallel to adapt to complex process requirements. The connections between the heat exchange coils 20 are all located outside the channels through which the high-temperature carbon particles flow. This prevents damage to the connections from prolonged direct contact with the high-temperature carbon particles, thus preventing heat exchange medium leakage due to quality issues at the connections within the flow channels. This significantly improves the overall reliability of the equipment.

[0074] Example 1, as Figure 7 and Figure 8 As shown, when the heat exchange channel 2 includes multiple heat exchange coils 20, it also includes a series connecting pipe 3. Any two adjacent heat exchange coils 20 are connected by the series connecting pipe 3, and the connection points between the heat exchange coils 20 and the series connecting pipe 3 are all located outside the channel through which the high-temperature carbon particles flow, preventing heat exchange medium leakage due to connection quality issues inside the channel. Specifically, in two adjacent heat exchange coils 20, the outlet 21 of the first heat exchange coil 20 is connected to the first end of the series connecting pipe 3, and the inlet 22 of the second heat exchange coil 20 is connected to the second end of the series connecting pipe 3, and so on, with multiple heat exchange coils 20 connected to form a series structure. When the particle channel 1 is vertically arranged, the series connecting pipe 3 is horizontally arranged. "Horizontal" here does not refer to a completely horizontal direction; the angle of the series connecting pipe 3 matches the positions of the outlet 21 and inlet 22 of the adjacent heat exchange coils 20. The heights of the outlets and inlets of two adjacent heat exchange coils 20 are not the same, causing the series connecting pipe 3 to have a certain degree of inclination. The inlet 22 of the heat exchange coil 20 located at the outlet of particle channel 1 is set as the total inlet 41 for the heat exchange medium, and the outlet 21 of the heat exchange coil 20 located at the inlet of particle channel 1 is set as the total outlet 42 for the heat exchange medium. The heat exchange medium enters from the total inlet 41, flows through multiple heat exchange coils 20 in sequence, absorbs a large amount of heat released by the high-temperature carbon particles, and then flows out from the total outlet 42. The heat exchange medium is preferably water, and the cavity of the heat exchange coil 20 is a water evaporation space. Water enters through the total inlet 41, and the cold water absorbs the heat from the high-temperature carbon particles to generate steam. The total outlet 42 for the heat exchange medium is connected to an external steam drum through a water-steam mixture pipe, and the total inlet 41 for the heat exchange medium is connected to a forced circulation pump and a steam drum through a water supply pipe, forming a forced circulation loop. With proper selection of the forced circulation pump, the high-temperature carbon particle cooler will not be damaged due to poor water-steam circulation.

[0075] Example 2, as Figure 9 and Figure 10As shown, when the heat exchange channel 2 includes multiple heat exchange coils 20, it also includes a first parallel connecting pipe 51 and a second parallel connecting pipe 52. The inlets 22 and outlets 21 of the multiple heat exchange coils 20 are respectively connected to the first parallel connecting pipe 51 and the second parallel connecting pipe 52. The first parallel connecting pipe 51 and the second parallel connecting pipe 52 are preferably arranged along the axial direction of the particle channel 1. A total heat exchange medium inlet 41 is provided at one end of the first parallel connecting pipe 51 near the outlet of the particle channel 1, and a total heat exchange medium outlet 42 is provided at one end of the second parallel connecting pipe 52 near the inlet of the particle channel 1. Through the arrangement of the first parallel connecting pipe 51 and the second parallel connecting pipe 52, there are no connecting seams inside the channel where high-temperature carbon particles flow, and there will be no leakage of heat exchange medium caused by quality problems of connecting seams inside. During equipment operation, the heat exchange medium enters the first parallel connecting pipe 51 through the heat exchange medium inlet 41, and is then simultaneously distributed to multiple heat exchange coils 20 by the first parallel connecting pipe 51. After absorbing heat through the heat exchange coils 20, the heat exchange medium flows into the second parallel connecting pipe 52 and finally flows out from the heat exchange medium outlet 42. Of course, the heat exchange medium can be water, and its working principle is the same as in Embodiment 1. The only difference is that water is centrally introduced through the heat exchange medium inlet 41 on the first parallel connecting pipe 51, and the water vapor mixture is discharged through the heat exchange medium outlet 42.

[0076] Example 3, as Figure 7 As shown, the heat exchange channel 2 is a hollow structure with openings at both ends. The hollow structure is fitted inside the particle channel 1, and a hollow interlayer 23 is provided between the outer wall of the heat exchange channel 2 and the inner wall of the particle channel 1. The entire particle channel 1 serves as a channel for the flow of high-temperature carbon particles. High-temperature carbon particles entering from the inlet of the particle channel 1 flow through both the heat exchange channel 2 and the hollow interlayer 23 and are discharged from the outlet of the particle channel 1. At this time, both the heat exchange channel 2 and the hollow interlayer 23 contain flowing carbon particles. The inner and outer walls of the heat exchange channel 2 are heat exchange surfaces. At this time, the connection points between the heat exchange coils 20 of the same heat exchange channel 2 are all located outside the particle channel 1. Corresponding to Embodiment 1 and Embodiment 2, the series connecting pipe 3, the first parallel connecting pipe 51, and the second parallel connecting pipe 52 are located outside the particle channel 1 to avoid direct contact between the connection points of the series connecting pipe 3, the first parallel connecting pipe 51, and the second parallel connecting pipe 52 and the heat exchange coils 20 and the high-temperature carbon particles, thus preventing quality problems. Specifically, gaps are provided between the pipe walls of adjacent pipes in the heat exchange coil 20 to allow high-temperature carbon particles to pass through, and / or gaps are provided between the pipe walls of adjacent pipes in adjacent heat exchange coils 20 to allow high-temperature carbon particles to pass through. High-temperature carbon particles can directly exchange heat with the entire outer wall of the pipe, effectively improving heat exchange efficiency. At the same time, the connections between the heat exchange coils 20 are all located outside the particle channel 1, avoiding direct contact with the high-temperature carbon particles.

[0077] Example 4, as Figure 11 and Figure 12 As shown, the heat exchange channel 2 is a hollow sealed structure with openings at both ends. The heat exchange channel 2 is fitted inside the particle channel 1, and a hollow interlayer 23 is provided between the heat exchange channel 2 and the particle channel 1. Heat exchange channel 2 serves as a channel for the flow of high-temperature carbon particles. Due to the sealing effect of heat exchange channel 2, high-temperature carbon particles entering from the inlet of particle channel 1 only pass through heat exchange channel 2 and are discharged from the outlet of particle channel 1. At this time, no flowing carbon particles appear in the hollow jacket 23. The connection between heat exchange coils 20 is located inside the hollow jacket 23 and / or outside the particle channel 1, preferably inside the hollow jacket 23, so that there are no connection points of heat exchange coils 20 outside the particle channel 1. Corresponding to embodiment one and embodiment two, the series connecting pipe 3, the first parallel connecting pipe 51 and the second parallel connecting pipe 52 are set in the hollow jacket 23 to avoid the connection points between the series connecting pipe 3, the first parallel connecting pipe 51 and the second parallel connecting pipe 52 and the heat exchange coil 20 directly contacting the high-temperature carbon particles and causing quality problems. At the same time, the protective effect of particle channel 1 can prevent the series connecting pipe 3, the first parallel connecting pipe 51 and the second parallel connecting pipe 52 from being damaged by external forces.

[0078] One implementation of Example 4, such as Figure 5 As shown, in the heat exchange coil 20, the gap width between the pipe walls of adjacent pipes is zero or less than the minimum particle size of high-temperature carbon particles. Moreover, the gap width between the pipe walls of adjacent heat exchange coils 20 is zero or less than the minimum particle size of high-temperature carbon particles. This can prevent particles from entering the gap between pipes and forming a dead zone that does not fall. It can also prevent high-temperature carbon particles from entering the hollow interlayer 23 through the gap and damaging the connection between the heat exchange coils.

[0079] Another implementation of Example 4, such as Figure 13As shown, in the heat exchange coil 20, gaps are provided between the walls of adjacent pipes, and first connecting fins 61 are provided in the gaps. Between adjacent heat exchange coils 20, gaps are also provided between the walls of adjacent pipes, and second connecting fins are provided in the gaps. The width of the gaps does not need to be considered; the gaps between the pipes are directly covered by the first and second connecting fins, allowing multiple heat exchange coils 20 to be sequentially arranged along the axial direction of the particle channel 1 to form a hollow, sealed heat exchange channel 2 with open ends. The first connecting fins 61 can be continuous, segmented, or notched. The first and second connecting fins can be welded to the pipes in the heat exchange coil 20 on one side or both sides. The first and second connecting fins not only fill the gaps, preventing particles from entering the hollow interlayer 23 and damaging the connections between the heat exchange coils, and preventing particles from forming dead zones in the gaps between pipes, but also increase the heat exchange area between the heat exchange coil 20 and the high-temperature carbon particles, improving heat exchange efficiency.

[0080] Specifically, such as Figures 1 to 7 As shown, the heat exchange coil 20 is coiled circumferentially along the inner wall of the particle channel 1, with the bends set in an arc shape. The shape of the heat exchange coil conforms to the shape of the particle channel. After the length and cross-sectional area of ​​the particle channel 1 are determined, the internal coil is designed, such as in a figure-eight shape, rectangle, or circle, to ensure that the heat exchange channel 2 has the largest possible cross-sectional area. Specifically, when there are multiple heat exchange channels 2, they are arranged side by side, and adjacent heat exchange channels 2 can be interconnected or spaced apart to increase the heat exchange area. The outer wall of the heat exchange coil 20 is set as close as possible to the inner wall of the particle channel to increase the surface area of ​​the heat exchange coil 20, further increasing the heat exchange area and thus increasing the heat exchange efficiency. The heat exchange coil 20 can be set in a figure-eight coiled structure, with the same heat exchange coil 20 forming two or more heat exchange channels 2. The connection between the heat exchange coils 20 is set on the outside of the particle channel 1 to increase the heat exchange area. When there is only one heat exchange channel 2, the heat exchange coil 20 is completely coiled circumferentially along the inner wall of the particle channel 1.

[0081] like Figure 13 As shown, a gap is provided between adjacent tube walls of the heat exchange coil 20, and a first connector 70 is provided covering the gap; see also Figure 14The first connector 70 has two bent ends, each with a first arc-shaped groove 73. The first arc-shaped groove 73 is engaged or welded to the outer surface of the pipe connection of the heat exchange coil 20, covering the gap between two adjacent sets of heat exchange coils 20. On the outlet 21 and inlet 22 side of the heat exchange coil 20, a second connector 71 is provided covering the gap between the end face of the heat exchange coil 20 at the inlet end of the particle channel 1 and the end face of the inlet end of the particle channel 1. A third connector 72 is provided covering the gap between the end face of the heat exchange coil 20 at the outlet end of the particle channel 1 and the end face of the outlet end of the particle channel 1. See also Figure 15 and Figure 16 The second connector 71 and the third connector 72 are bent at one end and have a second arc-shaped groove 74. The width of the second arc-shaped groove 74 gradually decreases from one end to the other, forming a wedge-shaped structure. The second arc-shaped groove 74 is used to lock onto the outer wall of the pipe connection of the corresponding heat exchange coil 20, covering the gap between the pipe at the inlet end of the particle channel 1 and the end face of the inlet end of the particle channel 1, as well as the gap between the pipe at the outlet end of the particle channel 1 and the end face of the outlet end of the particle channel 1. The first connector 70, the second connector 71, and the third connector 72 are all preferably finned.

[0082] like Figure 7As shown, the particle channel 1 includes a first side plate 11, a second side plate 12, a third side plate 13, and a fourth side plate. The first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate are connected sequentially to form various shapes of the particle channel 1 structure. Alternatively, the particle channel 1 can be set as a single integrated structure, eliminating the need for the first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate. After the first side plate 11, the second side plate 12, the third side plate 13, and the fourth side plate are connected sequentially, the first side plate 11 and the third side plate 13 are positioned opposite each other, and the second side plate 12 and the fourth side plate are positioned opposite each other. The first side plate 11 has multiple mounting holes 111. The outlet 21 and inlet 22 of each heat exchange coil 20 are correspondingly provided with one mounting hole 111, allowing the pipes of the outlet 21 and inlet 22 of the heat exchange coil 20 to extend outside the particle channel 1 through the corresponding mounting holes 111. The pipes of the outlet 21 and inlet 22 of the heat exchange coil 20 can be welded or detachably connected to the mounting holes 111, facilitating the disassembly and assembly of the heat exchange coil 20 while ensuring stable installation through the mounting holes 111. In one embodiment, the first side plate 11, second side plate 12, third side plate 13, and fourth side plate are all flat plates, sequentially connected to form a hollow cuboid or cube structure with openings at both the top and bottom. The shape of the heat exchange coil 20 matches the shape of the inner wall of the particle channel 1, with arc-shaped bends at the bends. At this point, the transverse connecting pipe 3 includes a straight pipe in the middle and 90° arc bends connecting both ends of the straight pipe. In the adjacent heat exchange coils 20, the outlet 21 of the first and the inlet 22 of the second are respectively connected to the two 90° arc bends of the transverse connecting pipe 3. The transverse connecting pipe 3 is not horizontally arranged; its two ends are connected to the adjacent inlet and outlet of the adjacent heat exchange coil 20, so the heights of the two ends are not the same, and the entire transverse connecting pipe 3 will have a certain inclination. In another embodiment, the first side plate 11 and the third side plate 13 are arc-shaped plates, and the second side plate 12 and the fourth side plate are flat plates. The first side plate 11, the second side plate 12, the third side plate 13 and the fourth side plate are connected in sequence to form a hollow particle channel 1 with arc-shaped sides, a flat plate in the middle and openings at the top and bottom. At this point, the heat exchange coil 20 is set as a racetrack-shaped coiled structure so that the shape of the heat exchange coil 20 matches the inner wall of the particle channel 1. When the outlet 21 and inlet 22 of the heat exchange coil 20 have a short extension length, the external transverse connecting pipe 3 is an arc-shaped pipe to avoid interference between the transverse connecting pipe 3 and the outer wall of the first side plate 11; when the outlet 21 and inlet 22 of the heat exchange coil 20 have a long extension length, the external transverse connecting pipe 3 can be a straight pipe with elbows at both ends.

[0083] like Figure 7As shown, flanges 8 are provided on both the upper and lower end faces of the particle channel 1. The upper end face of the particle channel 1 is welded to the upper flange 81, and the lower end face of the particle channel 1 is welded to the lower flange 82. The bolt holes of the upper flange 81 can be round holes or notches with the opening facing the outer edge.

[0084] like Figure 17 As shown, a support member 9 is provided at the bottom of the particle channel 1. The support member 9 is set on the inner wall of the particle channel 1 or on the lower flange 82. The heat exchange coil 20 located at the lower end is stacked on the support member 9. The support member 9 is preferably an angle steel.

[0085] Furthermore, such as Figure 18 As shown, the present invention also provides a high-temperature carbon particle cooling system, including a steam drum 101, a forced circulation pump 102, and multiple high-temperature carbon particle cooling devices. The multiple high-temperature carbon particle cooling devices are connected to form an evaporation mechanism 100, preferably in parallel connection. The steam drum 101, the forced circulation pump 102, and the evaporation mechanism 100 are circulated together to form a forced circulation system. Further, the steam drum 101 is provided with a saturated steam outlet 1011 and a water inlet 1012. The saturated steam outlet 1011 is connected to the user end, and the water inlet 1012 is connected to a municipal water pipe for replenishing cooling water to the steam drum to prevent the heat exchange coil 20 from dry burning. A first control valve 103 is provided on the pipe connecting to the total inlet 41 of the heat exchange medium, and a vent valve 104 and a second control valve 105 are provided on the pipe connecting to the total outlet 42 of the heat exchange medium.

[0086] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0087] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0088] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0089] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0090] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A high-temperature carbon particle cooling device, characterized in that, The high-temperature carbon particle cooling device includes a particle channel (1) and at least one heat exchange channel (2) disposed in the particle channel (1), the heat exchange channel (2) being arranged along the axial direction of the particle channel (1); The heat exchange channel (2) includes at least one heat exchange coil (20) that is spirally wound. When the heat exchange channel (2) includes multiple heat exchange coils (20), the multiple heat exchange coils (20) are coaxially arranged, and the multiple heat exchange coils (20) are connected in parallel, in series, or in a mixed series-parallel connection. The heat exchange channel (2) is a hollow sealed structure with openings at both ends, and a hollow interlayer (23) is provided between the heat exchange channel (2) and the particle channel (1). In the heat exchange coil (20), the gap width between the pipe walls of adjacent pipes is smaller than the minimum particle size of high-temperature carbon particles; between adjacent heat exchange coils (20), the gap width between the pipe walls of adjacent pipes is smaller than the minimum particle size of high-temperature carbon particles. High-temperature carbon particles entering from the inlet of the particle channel (1) pass through the heat exchange channel (2) and are discharged from the outlet of the particle channel (1); The connections between the heat exchange coils (20) are all located inside the hollow interlayer (23), which prevents the connections from directly contacting the high-temperature carbon particles. At the same time, the protective effect of the particle channel (1) can prevent the connections from being damaged by external forces.

2. The high-temperature carbon particle cooling device as described in claim 1, characterized in that: When the heat exchange channel (2) includes a plurality of heat exchange coils (20), the heat exchange channel (2) also includes a series connecting pipe (3). Any two adjacent heat exchange coils (20) are connected by the series connection pipe (3), and the connection between the heat exchange coil (20) and the series connection pipe (3) is located outside the channel for the flow of high-temperature carbon particles. A total inlet (41) for heat exchange medium is provided on the heat exchange coil (20) located at the outlet of the particle channel (1), and a total outlet (42) for heat exchange medium is provided on the heat exchange coil (20) located at the inlet of the particle channel (1).

3. The high-temperature carbon particle cooling device as described in claim 1, characterized in that: When the heat exchange channel (2) includes a plurality of heat exchange coils (20), the heat exchange channel (2) also includes a first parallel connecting pipe (51) and a second parallel connecting pipe (52). The inlet (22) and outlet (21) of each of the heat exchange coils (20) are respectively connected to the first parallel connecting pipe (51) and the second parallel connecting pipe (52); The first parallel connecting pipe (51) is provided with a total inlet (41) of heat exchange medium, and the second parallel connecting pipe (52) is provided with a total outlet (42) of heat exchange medium. The total inlet (41) of heat exchange medium is located at the outlet of the particle channel (1), and the total outlet (42) of heat exchange medium is located at the inlet of the particle channel (1).

4. The high-temperature carbon particle cooling device according to any one of claims 1-3, characterized in that: In the heat exchange coil (20), there is a gap between the walls of adjacent pipes, and a first connecting fin (61) is provided in the gap. A gap is provided between adjacent heat exchange coils (20) and between the pipe walls of adjacent pipes, and a second connecting fin is provided in the gap.

5. The high-temperature carbon particle cooling device according to any one of claims 1-3, characterized in that: The heat exchange coil (20) is circumferentially coiled along the inner wall of the particle channel (1), and the bends are set in an arc shape; A gap is provided between the pipe walls of adjacent heat exchange coils (20), and a first connector (70) is provided in the gap; both ends of the first connector (70) are bent and each is provided with a first arc-shaped groove (73), and the first arc-shaped groove (73) is snapped or welded to the outer surface of the pipe connection of the heat exchange coil (20); A second connector (71) is provided in the gap between the heat exchange coil (20) at the inlet end of the heat exchange channel (2) and the end face of the particle channel (1) at the inlet end; a third connector (72) is provided in the gap between the heat exchange coil (20) at the outlet end of the heat exchange channel (2) and the end face of the particle channel (1) at the outlet end; one end of the second connector (71) and the third connector (72) is bent and provided with a second arc-shaped groove (74), and the second arc-shaped groove (74) is snapped or welded to the outer surface of the pipe connection of the corresponding heat exchange coil (20).

6. The high-temperature carbon particle cooling device as described in claim 1, characterized in that: Flanges (8) are provided at both the outlet and inlet ends of the particle channel (1).

7. The high-temperature carbon particle cooling device as described in claim 1, characterized in that: The outlet end of the particle channel (1) is provided with a support (9), and the heat exchange coil (20) located at the outlet end of the particle channel (1) is mounted on the support (9).

8. A high-temperature carbon particle cooling system, characterized in that, The high-temperature carbon particle cooling system includes a steam drum (101), a forced circulation pump (102), and a plurality of high-temperature carbon particle cooling devices as described in any one of claims 1-6. Multiple high-temperature carbon particle cooling devices are connected to form an evaporation mechanism (100), and the steam drum (101), the forced circulation pump (102), and the evaporation mechanism (100) are circulated together.

9. The high-temperature carbon particle cooling system as described in claim 8, characterized in that: The steam drum is equipped with a saturated steam outlet (1011) and a water inlet (1012).

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