Water injection cooling structure for fireproof plugging of converter station valve hall

Abstract

The invention relates to the technical field of fireproof and anti-explosion plugging of converter station valve halls, and discloses a water injection cooling structure for fireproof plugging of a converter station valve hall, which comprises a shell I. The outer wall of the shell I is fixedly connected with a shell II, the rear side of the shell I is fixedly connected with a connecting plate, and the inner wall of the shell II is fixedly connected with a right-angle pipe. A first notch is formed in the outer wall of the first shell, and a heat conduction plate is fixedly connected to the inner wall of the first shell. By arranging the heat exchange mechanism, when the temperature of the heat conduction assembly on one side is too high and cannot be rapidly sent away, the heat exchange mechanism can rotate, the cooled heat conduction assembly on the other side is rotated to the front face, and cooling operation continues; and the heat conduction assembly on the other side can perform heat dissipation treatment, so that the time for reducing the temperature of the equipment in an emergency can be shortened, and the cooling effect of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof and explosion-resistant plugging of a converter station valve hall, and in particular to a water injection cooling structure for fireproof and explosion-resistant plugging of a converter station valve hall. Background Art

[0002] The converter station is the most important node of the DC transmission line. Ensuring the safe and stable operation of the converter station is the key to DC transmission. The converter valve and converter transformer are the most important equipment in the converter station. In particular, the converter transformer (hereinafter referred to as "converter transformer") is one of the core main equipment of the DC transmission project. It plays an important role in providing commutation voltage for the converter bridge, transmitting electric energy, and isolating AC and DC systems. The converter valve in the valve hall is the basic unit equipment of the converter. It undertakes the AC-DC conversion function in the converter station and is a vital key equipment in the high-voltage DC transmission project.

[0003] The patent application with application number CN202221997624.1 discloses a water injection cooling structure for fire-proof sealing of the valve hall of a converter station, including multiple water storage boxes stacked up and down, an overflow hole arranged on the water storage box for connecting two water storage boxes, a water injection hole arranged on the top of the uppermost water storage box, and a drainage hole arranged at the bottom of the lowermost water storage box; wherein, the middle water storage box is reserved with a hole for the converter transformer bushing to pass through; the water storage box is composed of an explosion-proof side panel and five ordinary side panels.

[0004] When the above-mentioned device is in use, a water storage pipe is arranged inside the device so that the liquid in the water storage box can quickly cool down the high-temperature area outside the device. However, since the water storage box is too simple and the water replacement rate is slow, after the temperature reaches a certain height, the device is difficult to function, resulting in poor cooling effect of the device. Summary of the invention

[0005] The object of the present invention is to provide a water injection cooling structure for fireproof plugging of a valve hall of a converter station, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a water injection cooling structure for fireproof plugging of a converter station valve hall, comprising a shell 1, the outer wall of the shell 1 is fixedly connected to a shell 2, the rear side of the shell 1 is fixedly connected to a connecting plate, the inner wall of the shell 2 is fixedly connected to a right-angle tube, the outer wall of the shell 1 is provided with a notch 1, the inner wall of the shell 1 is fixedly connected to a heat conducting plate, and further comprising: A heat exchanging mechanism, wherein the heat exchanging mechanism comprises a hollow column arranged inside an outer shell, the inner wall of the hollow column is fixedly connected with a partition, the end of the partition away from the hollow column is fixedly connected with a central column, the outer wall of the hollow column is provided with a notch 2, the inner wall of the notch 2 is fixedly connected with a heat conducting component, the partition divides the interior of the hollow column into two parts, the cavity close to the connecting plate is used for heat dissipation, and the cavity away from the connecting plate is used for absorbing heat, and the central column is used to increase the distance between the two cavities to avoid heat transfer between the two spaces, and by setting up a heat exchanging mechanism, when the temperature of the heat conducting component on one side is too high and the high temperature cannot be quickly removed, the heat exchanging mechanism will be rotated, and the heat conducting component on the other side that has been cooled will be rotated to the front to continue the cooling operation, while the heat conducting component on the other side will perform heat dissipation processing, which can reduce the time for the equipment to lower the temperature in an emergency and improve the cooling effect of the equipment.

[0007] According to the above technical solution, a dual-axis motor is fixedly connected to the outer wall of the shell, a connecting shaft is fixedly connected to the output end of the dual-axis motor, a sleeve is fixedly connected to the end of the connecting shaft away from the dual-axis motor, and a conveyor belt is provided on the outer wall of the sleeve. When the equipment needs to rotate the heat dissipation direction of the heat exchange mechanism, the dual-axis motor drives the connecting shaft to rotate, and the rotating connecting shaft drives the sleeve to rotate, thereby providing power for the rotation of the heat exchange mechanism.

[0008] According to the above technical solution, the two ends of the hollow column are fixedly connected with a connecting pipe 1, the outer wall of the connecting pipe 1 is rotatably connected with the heat dissipation component through a bearing, and the outer wall of the connecting pipe 1 is rotatably connected with the sleeve through a conveyor belt. When the sleeve rotates, the connecting pipe 1 rotates along with the conveyor belt, and the rotating connecting pipe 1 drives the entire heat exchange mechanism to rotate.

[0009] According to the above technical solution, a water arc is opened on the inner wall of the center column, and both ends of the center column are fixedly connected with raised columns. After the coolant is sent into the equipment, it is sent into the space between the hollow column and the center column through the water arc. The flow area of ​​the liquid is reduced by setting the raised columns, thereby increasing the flow rate of the liquid. By setting a heat exchange mechanism, the flow radius of the liquid is reduced before the coolant enters the heat exchange mechanism in the equipment. In this way, the flow rate of the coolant in the equipment is increased through the pressure of the liquid, thereby accelerating the speed at which the coolant takes away the temperature on the heat-conducting component, thereby improving the cooling effect of the equipment.

[0010] According to the above technical solution, the heat dissipation component includes a heat-conducting hollow plate, the inner wall of the heat-conducting hollow plate is provided with a notch three, both ends of the heat-conducting hollow plate are fixedly connected with guide plates, the outer wall of the guide plate is fixedly connected to the outer shell one, the heat-conducting hollow plate takes away the heat in the heat dissipation space of the heat exchange mechanism, and the notch on the heat-conducting hollow plate can prevent the heat-conducting hollow plate from blocking the moving space of the conveyor belt. By setting the heat dissipation component, when the heat exchange mechanism is working, in addition to dissipating the heat of the overheated heat-conducting component from the inside, the heat of the heat-conducting component is also dissipated from the outer wall, thereby reducing the time for the equipment to cool the heat-conducting component, avoiding the situation that the heat-conducting component being cooled has been overheated, while the heat-conducting component being cooled has not yet completed cooling, thereby ensuring the cooling effect of the equipment.

[0011] According to the above technical solution, the inner wall of the guide plate is fixedly connected with a connecting pipe 2, and the side of the connecting pipe 2 close to the center column is fixedly connected with a connecting ring. The inner wall of the connecting ring is rotatably connected to the connecting pipe 1 through a bearing. After the coolant enters the equipment, a part of the liquid enters the main body of the heat exchange mechanism through the connecting ring, and the other part enters the heat-conducting hollow plate through the guide plate.

[0012] According to the above technical solution, a baffle is fixedly connected to the inner wall of the connecting tube 2, and one end of the connecting tube 2 away from the connecting ring is fixedly connected to the right-angle tube. The baffle diverts the liquid entering the connecting tube 2, so that the liquid entering the guide plate will not decrease the flow rate of the liquid inside the heat-conducting hollow plate due to the excessively fast flow rate in the connecting tube 2.

[0013] According to the above technical solution, the heat-conducting component includes a heat-conducting sheet, the inner wall of the notch 2 is fixedly connected to the heat-conducting sheet, the inner side of the heat-conducting sheet is fixedly connected with a heat-conducting fin, and the end of the heat-conducting fin away from the heat-conducting sheet is fixedly connected to the center column. The heat-conducting fin transmits the heat absorbed by the heat-conducting sheet from the outer shell 1 to the interior of the heat exchange mechanism, and dissipates the heat to the outside of the outer shell 1. By setting the heat-conducting component and setting the heat-conducting fin in the space where the cleaning liquid flows, the contact area between the liquid and the heat-conducting component is increased, and the efficiency of the heat exchange of the coolant is improved, thereby enhancing the cooling effect of the equipment.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention sets a heat exchange mechanism. When the temperature of the heat-conducting component on one side is too high and the high temperature cannot be quickly removed, the heat exchange mechanism will rotate, and the heat-conducting component on the other side that has been cooled will be rotated to the front to continue the cooling operation, while the heat-conducting component on the other side will dissipate heat. This can reduce the time for the equipment to lower the temperature in an emergency and improve the cooling effect of the equipment.

[0015] 2. The present invention provides a heat exchange mechanism, which reduces the flow radius of the liquid before the coolant enters the heat exchange mechanism. In this way, the flow rate of the coolant in the equipment is increased through the pressure of the liquid, and then the speed at which the coolant takes away the temperature of the heat-conducting component is accelerated, thereby improving the cooling effect of the equipment.

[0016] 3. The present invention sets a heat dissipation component. When the heat exchange mechanism is working, in addition to dissipating heat from the inside of the overheated heat-conducting component, it also dissipates heat from the outer wall of the heat-conducting component, thereby reducing the time for the equipment to cool the heat-conducting component, avoiding the situation where the heat-conducting component being cooled is overheated while the heat-conducting component being cooled has not yet completed cooling, thereby ensuring the cooling effect of the equipment.

[0017] 4. The present invention provides a heat-conducting component and heat-conducting fins in the space where the cleaning liquid flows, thereby increasing the contact area between the liquid and the heat-conducting component and improving the efficiency of heat exchange of the coolant, thereby enhancing the cooling effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a sectional view of the overall structure of the present invention; Figure 3 It is a cross-sectional view of the external structure of the overall structure of the present invention; Figure 4 is a schematic diagram of the heat exchange mechanism of the present invention; Figure 5 It is a schematic diagram of the main structure of the heat exchange mechanism of the present invention; Figure 6 is a longitudinal cross-sectional view of the heat exchange mechanism of the present invention; Figure 7 is a transverse cross-sectional view of the heat exchange mechanism of the present invention; Figure 8 The present invention Figure 7 A magnified view of middle; Fig. 9 is a schematic diagram of a heat dissipation assembly of the present invention; Fig.10 is a cross-sectional view of a heat dissipation assembly of the present invention; Fig.11 is a schematic diagram of a heat conducting component of the present invention; In the figure: 1. Shell 1; 101. Shell 2; 102. Connecting plate; 103. Dual-axis motor; 104. Connecting shaft; 105. Sleeve; 106. Right-angle tube; 107. Notch 1; 108. Heat-conducting plate; 109. Conveyor belt; 2. Heat exchange mechanism; 201. Hollow column; 202. Notch 2; 203. Connecting pipe 1; 204. Partition; 205. Center column; 206. Raised column; 207. Water arc; 21. Heat dissipation component; 211. Heat-conducting hollow plate; 212. Notch 3; 213. Guide plate; 214. Connecting pipe 2; 215. Connecting ring; 216. Baffle; 22. Heat-conducting component; 221. Heat-conducting sheet; 222. Heat-conducting fin. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example 1: See Figure 1-Figure 8The present invention provides a technical solution: a water injection cooling structure for fireproof plugging of a valve hall of a converter station, comprising a shell 1, the outer wall of the shell 1 is fixedly connected to a shell 2 101, the rear side of the shell 1 is fixedly connected to a connecting plate 102, the inner wall of the shell 2 101 is fixedly connected to a right-angle tube 106, the outer wall of the shell 1 is provided with a notch 107, the inner wall of the shell 1 is fixedly connected to a heat conducting plate 108, wherein the side of the shell 1 away from the connecting plate 102 is used to absorb external heat, and the setting of the heat conducting plate 108 can transfer the temperature of the shell 2 101 away from the heat exchange mechanism 2 to the vicinity of the heat exchange mechanism 2. , to enhance the cooling effect of the equipment, the outer wall of the shell 1 is fixedly connected with a dual-axis motor 103, the output end of the dual-axis motor 103 is fixedly connected with a connecting shaft 104, the end of the connecting shaft 104 away from the dual-axis motor 103 is fixedly connected with a sleeve 105, and the outer wall of the sleeve 105 is sleeved with a conveyor belt 109. When the equipment is working, if the temperature of the heat-conducting component 22 on one side of the heat exchange mechanism 2 is too high, the dual-axis motor 103 is started to drive the connecting shaft 104 to rotate, and the rotating connecting shaft 104 drives the sleeve 105 to rotate, and the rotating sleeve 105 drives the heat exchange mechanism 2 to rotate through the conveyor belt 109.

[0023] The heat exchange mechanism 2 includes a hollow column 201 arranged inside the housing 1, the inner wall of the hollow column 201 is fixedly connected with a partition 204, and the end of the partition 204 away from the hollow column 201 is fixedly connected with a central column 205, and the outer wall of the hollow column 201 is provided with a notch 202, and the inner wall of the notch 202 is fixedly connected with a heat conducting component 22. The partition 204 divides the interior of the hollow column 201 into two parts, the cavity close to the connecting plate 102 is used for heat dissipation, and the cavity away from the connecting plate 102 is used for absorbing heat, and the central column 205 is used to increase the distance between the two cavities to avoid the two cavities For heat transfer in the space, both ends of the hollow column 201 are fixedly connected with a connecting pipe 203, the outer wall of the connecting pipe 203 is rotatably connected with the heat dissipation component 21 through a bearing, and the outer wall of the connecting pipe 203 is rotatably connected with the sleeve 105 through a conveyor belt 109. When the equipment is working, if the temperature of the heat-conducting component 22 on one side of the heat exchange mechanism 2 is too high, as the dual-axis motor 103 drives the sleeve 105 to rotate, the rotating sleeve 105 drives the connecting pipe 203 to rotate through the conveyor belt 109, and the rotating connecting pipe 203 drives the main body of the heat exchange mechanism 2 to rotate, thereby changing the orientation of the two heat-conducting components 22.

[0024] The inner wall of the central column 205 is provided with a water arc 207, and both ends of the central column 205 are fixedly connected with raised columns 206. As the equipment works, after the coolant is fed into the equipment, the liquid will be fed into the central column 205 through the connecting pipe 203. The liquid reaching the central column 205 will increase its flow rate under the squeezing of the raised column 206, and then the liquid will be fed into between the central column 205 and the hollow column 201 through the water arc 207 to cool the heat-conducting component 22.

[0025] Example 2: Based on Example 1, please refer to Figure 9-11 The heat dissipation component 21 includes a heat-conducting hollow plate 211, and a notch 212 is provided on the inner wall of the heat-conducting hollow plate 211. Both ends of the heat-conducting hollow plate 211 are fixedly connected with guide plates 213, and the outer wall of the guide plate 213 is fixedly connected to the shell 1. The heat-conducting hollow plate 211 takes away the heat in the heat dissipation space of the heat exchange mechanism 2, and the notch on the heat-conducting hollow plate 211 can prevent the heat-conducting hollow plate 211 from blocking the moving space of the conveyor belt 109. The inner wall of the guide plate 213 is fixedly connected with a connecting pipe 214, and the side of the connecting pipe 214 close to the center column 205 is fixedly connected with a connecting ring 215. The inner wall of the connecting ring 215 is rotatably connected to the connecting pipe 203 through a bearing. After the coolant enters the equipment, a part of the liquid The liquid enters the main body of the heat exchange mechanism 2 through the connecting ring 215, and the other part enters the heat-conducting hollow plate 211 through the guide plate 213. The inner wall of the connecting pipe 214 is fixedly connected with a baffle 216. The end of the connecting pipe 214 away from the connecting ring 215 is fixedly connected to the right-angle tube 106. When the equipment is working, the baffle 216 diverts the liquid entering the inside of the connecting pipe 214. Under the obstruction of the baffle 216, a part of the liquid enters the guide plate 213. The liquid sent into the guide plate 213 will move to the inside of the heat-conducting hollow plate 211. When the liquid moves in the heat-conducting hollow plate 211, it takes away the heat transferred from the heat-conducting component 22 and dissipates the heat from the outer wall of the heat-conducting component 22.

[0026] The heat conducting component 22 includes a heat conducting sheet 221, the inner wall of the notch 202 is fixedly connected to the heat conducting sheet 221, the inner side of the heat conducting sheet 221 is fixedly connected to a heat conducting fin 222, and one end of the heat conducting fin 222 away from the heat conducting sheet 221 is fixedly connected to the center column 205. The heat conducting fin 222 transmits the heat absorbed by the heat conducting sheet 221 from the outer shell 1 to the interior of the heat exchange mechanism 2, so as to dissipate the heat from the outer shell 1.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water injection cooling structure for fireproof plugging of a valve hall of a converter station, comprising a shell 1 (1), the outer wall of the shell 1 (1) is fixedly connected to a shell 2 (101), the rear side of the shell 1 (1) is fixedly connected to a connecting plate (102), the inner wall of the shell 2 (101) is fixedly connected to a right-angle tube (106), the outer wall of the shell 1 (1) is provided with a notch 1 (107), and the inner wall of the shell 1 (1) is fixedly connected to a heat conducting plate (108), characterized in that: Also includes: A heat exchange mechanism (2), the heat exchange mechanism (2) comprising a hollow column (201) arranged inside a housing (1), the inner wall of the hollow column (201) being fixedly connected to a partition (204), the end of the partition (204) away from the hollow column (201) being fixedly connected to a center column (205), the outer wall of the hollow column (201) being provided with a notch (202), the inner wall of the notch (202) being fixedly connected to a heat conducting component (22), the partition (204) dividing the interior of the hollow column (201) into two parts, the cavity on the side close to the connecting plate (102) being used for heat dissipation, and the cavity on the side away from the connecting plate (102) being used for absorbing heat, and the center column (205) being used for increasing the distance between the two cavities, thereby blocking the heat transfer between the two spaces.

2. A water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 1, characterized in that: A dual-axis motor (103) is fixedly connected to the outer wall of the housing 1 (1); an output end of the dual-axis motor (103) is fixedly connected to a connecting shaft (104); an end of the connecting shaft (104) away from the dual-axis motor (103) is fixedly connected to a sleeve (105); a conveyor belt (109) is sleeved on the outer wall of the sleeve (105); when the device needs to rotate the heat dissipation direction of the heat exchange mechanism (2), the dual-axis motor (103) drives the connecting shaft (104) to rotate, and the rotating connecting shaft (104) drives the sleeve (105) to rotate, thereby providing power for the rotation of the heat exchange mechanism (2).

3. The water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 2 is characterized in that: The two ends of the hollow column (201) are fixedly connected to a connecting pipe (203); the outer wall of the connecting pipe (203) is rotatably connected to a heat dissipation assembly (21) via a bearing; the outer wall of the connecting pipe (203) is rotatably connected to the sleeve (105) via a conveyor belt (109); when the sleeve (105) rotates, the connecting pipe (203) is driven by the conveyor belt (109) to rotate; the rotating connecting pipe (203) drives the heat exchange mechanism (2) as a whole to rotate.

4. The water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 3 is characterized in that: The inner wall of the central column (205) is provided with a water-passing arc (207), and both ends of the central column (205) are fixedly connected with protruding columns (206). After the coolant is fed into the device, it is fed into between the hollow column (201) and the central column (205) through the water-passing arc (207). The protruding columns (206) are provided to reduce the circulation area of ​​the liquid, thereby increasing the circulation speed of the liquid.

5. The water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 4 is characterized in that: The heat dissipation component (21) comprises a heat-conducting hollow plate (211), the inner wall of the heat-conducting hollow plate (211) is provided with a notch three (212), both ends of the heat-conducting hollow plate (211) are fixedly connected to guide plates (213), the outer wall of the guide plate (213) is fixedly connected to the outer shell one (1), the heat-conducting hollow plate (211) takes away the heat in the heat dissipation space of the heat exchange mechanism (2), and the notch on the heat-conducting hollow plate (211) can prevent the heat-conducting hollow plate (211) from blocking the moving space of the conveyor belt (109).

6. A water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 5, characterized in that: The inner wall of the guide plate (213) is fixedly connected to a second connecting pipe (214), and a connecting ring (215) is fixedly connected to a side of the second connecting pipe (214) close to the central column (205). The inner wall of the connecting ring (215) is rotatably connected to the first connecting pipe (203) via a bearing. After the coolant enters the device, a portion of the liquid enters the main body of the heat exchange mechanism (2) through the connecting ring (215), while the other portion enters the heat-conducting hollow plate (211) through the guide plate (213).

7. The water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 6 is characterized in that: The inner wall of the second connecting pipe (214) is fixedly connected with a baffle plate (216); one end of the second connecting pipe (214) away from the connecting ring (215) is fixedly connected to the right-angle tube (106); the baffle plate (216) diverts the liquid entering the second connecting pipe (214) so ​​that the liquid entering the guide plate (213) will not have its flow velocity inside the heat-conducting hollow plate (211) reduced due to an excessively fast flow velocity inside the second connecting pipe (214), thereby playing a role in stabilizing the diversion.

8. The water injection cooling structure for fireproof plugging of a converter station valve hall according to claim 7, characterized in that: The heat-conducting component (22) comprises a heat-conducting sheet (221), the inner wall of the notch 2 (202) is fixedly connected to the heat-conducting sheet (221), a heat-conducting fin (222) is fixedly connected to the inner side of the heat-conducting sheet (221), one end of the heat-conducting fin (222) away from the heat-conducting sheet (221) is fixedly connected to the central column (205), and the heat-conducting fin (222) transmits the heat absorbed by the heat-conducting sheet (221) from the outer shell 1 (1) to the interior of the heat exchange mechanism (2), thereby dissipating heat from the outer shell 1 (1).

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