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

Abstract

The application relates to the technical field of fireproof and explosion-proof plugging of valve halls of converter stations, and discloses a water injection cooling structure for fireproof plugging of valve halls of converter stations, which comprises an outer shell one, the outer wall of the outer shell one is fixedly connected with an outer shell two, the rear side of the outer shell one is fixedly connected with a connecting plate, the inner wall of the outer shell two is fixedly connected with a right-angle pipe, the outer wall of the outer shell one is provided with a notch one, and the inner wall of the outer shell one is fixedly connected with a heat conduction plate. When the temperature of the heat conduction assembly on one side is too high and the high temperature cannot be quickly sent away, the heat exchange mechanism is rotated to rotate the heat conduction assembly on the other side to the front side for continuing cooling operation, and the heat conduction assembly on the other side is subjected to heat dissipation treatment, so that the temperature reduction time of the equipment under an emergency condition is reduced, and the cooling effect of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fireproof and explosion-proof plugging of valve hall of converter station, in particular to a water injection cooling structure for fireproof plugging of valve hall of converter station. BACKGROUND

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

[0003] The patent application with the application number CN202221997624.1 discloses a water injection cooling structure for fireproof plugging of valve hall of converter station, which comprises a plurality of upper and lower stacked water storage boxes, an overflow hole provided on the water storage box for connecting two water storage boxes, a water injection hole provided on the top of the uppermost water storage box, and a drainage hole provided on the bottom of the lowermost water storage box; wherein the middle water storage box is provided with a hole for the converter transformer sleeve to pass through; the water storage box is composed of one explosion-proof side plate and five ordinary side plates.

[0004] The above-mentioned device sets a water storage pipe in the device during use, so that the liquid in the water storage box can quickly cool the high-temperature area outside the device. However, due to the single setting of the water storage box and the slow water changing rate, the device is difficult to achieve the effect after the temperature reaches a certain height, resulting in poor cooling effect of the device. SUMMARY

[0005] The present application aims to provide a water injection cooling structure for fireproof plugging of valve hall of converter station to solve the problems raised in the background.

[0006] In order to solve the above technical problems, the present application provides the following technical scheme: a water injection cooling structure for fireproof plugging of valve hall of converter station, comprising an outer shell one, the left and right ends of the outer shell one are fixedly connected with outer shells two, the rear side of the outer shell one is fixedly connected with a connecting plate, the inner walls of the two outer shells two are fixedly connected with straight pipes, the outer wall of the outer shell one is provided with a notch one, and the inner wall of the outer shell one is fixedly connected with a heat conducting plate, further comprising:

[0007] The heat exchange mechanism comprises a hollow column arranged in a shell, the inner wall of the hollow column is fixedly connected with a partition plate, the number of the partition plates is two, the two partition plates are arranged at equal angles on the inner wall of the hollow column, a center column is fixedly connected between the two partition plates, a notch two is formed in the outer wall of the hollow column, and a heat conduction assembly is fixedly connected to the inner wall of the notch two. The partition plate divides the hollow column into two parts, the cavity close to the connecting plate one is used for heat dissipation, the cavity away from the connecting plate one is used for heat absorption, and the center column is used for increasing the distance between the two cavities to avoid heat transfer between the two spaces. When the heat conduction assembly on one side has a temperature that is too high to be quickly sent away, the heat exchange mechanism is rotated to rotate the heat conduction assembly on the other side to the front for cooling operation, and the heat conduction assembly on the other side is subjected to heat dissipation treatment. In this way, the time for reducing the temperature of the equipment in an emergency situation is reduced, and the cooling effect of the equipment is improved.

[0008] According to the above technical scheme, the outer wall of the shell one is fixedly connected with a double-shaft motor, the output end of the double-shaft motor is fixedly connected with a connecting shaft, the end of the connecting shaft away from the double-shaft motor is fixedly connected with a sleeve, the outer wall of the sleeve is sleeved with a conveying belt, and when the equipment needs to rotate the heat dissipation direction of the heat exchange mechanism, the double-shaft motor drives the connecting shaft to rotate, the rotating connecting shaft drives the sleeve to rotate, and then provides power for the rotation of the heat exchange mechanism.

[0009] According to the above technical scheme, the two ends of the hollow column are fixedly connected with a connecting pipe one, the outer wall of the connecting pipe one is rotatably connected with a heat dissipation assembly through a bearing, and the outer wall of the connecting pipe one is rotatably connected with the sleeve through the conveying belt. When the sleeve rotates, the connecting pipe one rotates with the conveying belt, and the rotating connecting pipe one drives the whole heat exchange mechanism to rotate.

[0010] According to the above technical scheme, the inner wall of the center column is provided with a water passage, and the two ends of the center column are fixedly connected with a protruding column. After the cooling liquid enters the equipment, it is sent between the hollow column and the center column through the water passage, and the flow area of the liquid is reduced by arranging the protruding column, thereby increasing the flow speed of the liquid. By arranging the heat exchange mechanism, the flow radius of the liquid is reduced before the cooling liquid enters the heat exchange mechanism in the equipment. Through the pressure of the liquid, the flow speed of the cooling liquid in the equipment is increased, thereby accelerating the speed of the cooling liquid in taking away the temperature on the heat conduction assembly, and improving the cooling effect of the equipment.

[0011] According to the technical scheme, the heat dissipation assembly comprises a heat-conducting hollow plate, the inner wall of the heat-conducting hollow plate is provided with a notch, both ends of the heat-conducting hollow plate are fixedly connected with a flow guide plate, and the outer wall of the flow guide plate is fixedly connected with the shell, the heat-conducting hollow plate carries away the heat in the heat exchange mechanism heat dissipation space, and the notch on the heat-conducting hollow plate avoids blocking the movement space of the conveying belt, by arranging the heat dissipation assembly, when the heat exchange mechanism works, the heat dissipation assembly is cooled not only from the inside but also from the outer wall, so that the cooling time of the equipment for the heat-conducting assembly is shortened, the situation that the heat-conducting assembly being cooled is overheated and the cooling of the heat-conducting assembly is not completed is avoided, and the cooling effect of the equipment is ensured.

[0012] According to the technical scheme, the inner wall of the flow guide plate is fixedly connected with a connecting pipe two, one side of the connecting pipe two close to the center column is fixedly connected with a connecting ring, and the inner wall of the connecting ring is rotationally connected with the connecting pipe one through a bearing, after the cooling liquid enters the equipment, 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 flow guide plate.

[0013] According to the technical scheme, the inner wall of the connecting pipe two is fixedly connected with a flow resistance plate, and one end of the connecting pipe two away from the connecting ring is fixedly connected with a right-angle pipe, the flow resistance plate divides the liquid entering the inside of the connecting pipe two, so that the liquid entering the inside of the flow guide plate will not cause the liquid flow rate in the heat-conducting hollow plate to decrease due to too high flow rate in the connecting pipe two.

[0014] According to the technical scheme, the heat-conducting assembly comprises a heat-conducting sheet, the inner wall of the notch two is fixedly connected with the heat-conducting sheet, the inner side of the heat-conducting sheet is fixedly connected with a heat-conducting fin, and one end of the heat-conducting fin away from the heat-conducting sheet is fixedly connected with the center column, the heat-conducting fin sends the heat absorbed by the heat-conducting sheet from the outer side of the shell one into the inside of the heat exchange mechanism, and the outer side of the shell one is cooled, by arranging the heat-conducting assembly, the heat-conducting fin is arranged in the liquid flow space, the contact area between the liquid and the heat-conducting assembly is increased, the heat exchange efficiency of the cooling liquid is improved, and the cooling effect of the equipment is enhanced.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1、By arranging the heat exchange mechanism, when the temperature of the heat-conducting assembly on one side is too high and the heat-conducting assembly cannot quickly send away the high temperature, the heat exchange mechanism is rotated to rotate the heat-conducting assembly on the other side, which has been cooled, to the front side to continue the cooling operation, and the heat-conducting assembly on the other side is subjected to heat dissipation treatment, so that the time for the equipment to reduce the temperature in an emergency is reduced, and the cooling effect of the equipment is improved.

[0017] 2、The present application sets up heat exchange mechanism, before cooling liquid enters heat exchange mechanism in the equipment, the flow radius of liquid will be reduced, so that the speed of cooling liquid circulation in the equipment is improved through the pressure of liquid, then the speed of cooling liquid taking away the temperature on the heat conducting assembly is accelerated, and the cooling effect of the equipment is improved.

[0018] 3、The present application sets up heat dissipation assembly, when heat exchange mechanism works, in addition to heat dissipation from the inside of the overheated heat conducting assembly, the heat conducting assembly is also heat dissipated from the outer wall of the heat conducting assembly, so as to reduce the time of cooling the heat conducting assembly of the equipment, avoid the situation that the heat conducting assembly being cooled is overheated, and the heat conducting assembly being cooled is not completed, ensure the cooling effect of the equipment.

[0019] 4、The present application sets up heat conducting assembly, heat conducting fins are arranged in the space where the cleaning liquid flows, the contact area of liquid and heat conducting assembly is increased, the heat exchange efficiency of cooling liquid is improved, so as to enhance the cooling effect of the equipment. DETAILED DESCRIPTION

[0020] The accompanying drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and serve to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0021] Figure 1 It is the overall structure schematic view of the present application;

[0022] Figure 2 It is the overall structure sectional view of the present application;

[0023] Figure 3 It is the overall structure external structure sectional view of the present application;

[0024] Figure 4 It is the heat exchange mechanism schematic view of the present application;

[0025] Figure 5 It is the main body structure schematic view of the heat exchange mechanism of the present application;

[0026] Figure 6 It is the longitudinal sectional view of the heat exchange mechanism of the present application;

[0027] Figure 7 It is the transverse sectional view of the heat exchange mechanism of the present application;

[0028] Figure 8 It is the enlarged view of A in the present application; Figure 7

[0029] Figure 9 It is the heat dissipation assembly schematic view of the present application;

[0030] Figure 10 It is the heat dissipation assembly sectional view of the present application;​

[0031] Figure 11 Figure is a schematic diagram of the heat conducting assembly of the present application;

[0032] Figure: 1, the outer shell one; 101, the outer shell two; 102, the connecting plate; 103, the double shaft motor; 104, the connecting shaft; 105, the sleeve; 106, the right-angle pipe; 107, the gap one; 108, the heat conducting plate; 109, the conveying belt; 2, the heat exchange mechanism; 201, the hollow column; 202, the gap two; 203, the connecting pipe one; 204, the partition; 205, the center column; 206, the convex column; 207, the water passing arc; 21, the heat dissipation assembly; 211, the heat conducting hollow plate; 212, the gap three; 213, the flow guide plate; 214, the connecting pipe two; 215, the connecting ring; 216, the resistance plate; 22, the heat conducting assembly; 221, the heat conducting sheet; 222, the heat conducting fin. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application.

[0034] Examples of the described embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0035] In the present application, unless explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Embodiment one: refer to Figures 1-8The application provides a technical scheme: a water injection cooling structure for fire prevention and plugging of a valve hall of a converter station, which comprises a shell one 1, both ends of the shell one 1 are fixedly connected with shells two 101, the rear side of the shell one 1 is fixedly connected with a connecting plate 102, the inner walls of the two shells two 101 are fixedly connected with right-angle pipes 106, the outer wall of the shell one 1 is provided with a notch one 107, and the inner wall of the shell one 1 is fixedly connected with a heat conduction plate 108, wherein one side of the shell one 1 away from the connecting plate 102 is used for absorbing external heat, the heat conduction plate 108 is arranged to deliver the temperature of one end of the shell two 101 away from the heat exchange mechanism 2 to the vicinity of the heat exchange mechanism 2, the cooling effect of the equipment is enhanced, the outer wall of the shell one 1 is fixedly connected with a double-shaft motor 103, the output end of the double-shaft motor 103 is fixedly connected with a connecting shaft 104, one end of the connecting shaft 104 away from the double-shaft motor 103 is fixedly connected with a sleeve 105, the outer wall of the sleeve 105 is sleeved with a conveying belt 109, and when the equipment is working, if the temperature of the heat conduction assembly 22 on one side of the heat exchange mechanism 2 is too high, the double-shaft motor 103 is started to drive the connecting shaft 104 to rotate, 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 conveying belt 109.

[0037] The heat exchange mechanism 2 comprises a hollow column 201 arranged in the shell one 1, the inner wall of the hollow column 201 is fixedly connected with baffles 204, the number of the baffles 204 is two, the two baffles 204 are arranged at equal angles on the inner wall of the hollow column 201, the two baffles 204 are fixedly connected with a center column 205, the outer wall of the hollow column 201 is provided with a notch two 202, the inner wall of the notch two 202 is fixedly connected with a heat conduction assembly 22, the baffle 204 divides the hollow column 201 into two parts, a cavity near the connecting plate 102 is used for heat dissipation, and a cavity away from the connecting plate 102 is used for heat absorption, and the center column 205 is used for increasing the distance between the two cavities to avoid heat transfer between the two spaces, both ends of the hollow column 201 are fixedly connected with connecting pipes one 203, the outer wall of the connecting pipe one 203 is rotatably connected with a heat dissipation assembly 21 through a bearing, and the outer wall of the connecting pipe one 203 is rotatably connected with the sleeve 105 through the conveying belt 109, when the equipment is working, if the temperature of the heat conduction assembly 22 on one side of the heat exchange mechanism 2 is too high, the sleeve 105 is rotated by the double-shaft motor 103, the rotating sleeve 105 drives the connecting pipe one 203 to rotate through the conveying belt 109, the rotating connecting pipe one 203 drives the main body of the heat exchange mechanism 2 to rotate, and then the orientations of the two heat conduction assemblies 22 are changed.

[0038] The inner wall of the center column 205 is provided with a water passing arc 207, and the two ends of the center column 205 are fixedly connected with protruding columns 206. With the working of the equipment, after the cooling liquid is sent into the equipment, the liquid will be sent into the center column 205 through the connecting pipe one 203, and the liquid reaching the center column 205 will increase the flow speed of the liquid under the extrusion of the protruding column 206, and then the liquid will be sent into the space between the center column 205 and the hollow column 201 through the water passing arc 207 to cool the heat conducting assembly 22.

[0039] Example two: on the basis of example one, please refer to Figures 9-11 The heat dissipation assembly 21 comprises a heat conducting hollow plate 211, the inner wall of the heat conducting hollow plate 211 is provided with a gap three 212, and the two ends of the heat conducting hollow plate 211 are fixedly connected with flow guide plates 213. The outer wall of the flow guide plate 213 is fixedly connected with the outer shell one 1. The heat conducting hollow plate 211 takes away the heat in the heat exchange mechanism 2 heat dissipation space, and the gap on the heat conducting hollow plate 211 can avoid the heat conducting hollow plate 211 blocking the moving space of the conveying belt 109. The inner wall of the flow guide plate 213 is fixedly connected with a connecting pipe two 214, one side of the connecting pipe two 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 with the connecting pipe one 203 through a bearing. After the cooling liquid enters the equipment, part of 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 flow guide plate 213. The inner wall of the connecting pipe two 214 is fixedly connected with a flow resistance plate 216, and one end of the connecting pipe two 214 away from the connecting ring 215 is fixedly connected with the straight pipe 106. When the equipment works, the flow resistance plate 216 divides the liquid entering the inside of the connecting pipe two 214. Under the blockage of the flow resistance plate 216, part of the liquid enters the flow guide plate 213, and the liquid entering the inside of the flow 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, the heat transferred by the heat conducting assembly 22 is taken away, and the outer wall of the heat conducting assembly 22 is cooled.

[0040] The heat conducting assembly 22 comprises a heat conducting sheet 221, the inner wall of the gap two 202 is fixedly connected with the heat conducting sheet 221, the inner side of the heat conducting sheet 221 is fixedly connected with heat conducting fins 222, and one end of the heat conducting fin 222 away from the heat conducting sheet 221 is fixedly connected with the center column 205. The heat conducting fin 222 sends the heat absorbed by the heat conducting sheet 221 from the outer shell one 1 into the inside of the heat exchange mechanism 2 to cool the outer side of the outer shell one 1.

[0041] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above-mentioned only constitutes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will still be able to modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water-injection cooling structure for fireproof sealing of valve hall in a converter station, comprising an outer shell (1), wherein outer shells (101) are fixedly connected to both the left and right ends of the outer shell (1), a connecting plate (102) is fixedly connected to the rear side of the outer shell (1), right-angle tubes (106) are fixedly connected to the inner walls of the two outer shells (101), a notch (107) is provided on the outer wall of the outer shell (1), and a heat-conducting plate (108) is fixedly connected to the inner wall of the outer shell (1), characterized in that, Also include: The heat exchange mechanism (2) includes a hollow column (201) arranged inside the shell (1), the inner wall of the hollow column (201) is fixedly connected with the partition (204), the number of the partition (204) is two, the two partition (204) is arranged at equal angle on the inner wall of the hollow column (201), the two partition (204) is fixedly connected with the center column (205), the outer wall of the hollow column (201) is provided with the notch two (202), the inner wall of the notch two (202) is fixedly connected with the heat conducting assembly (22), the partition (204) divides the hollow column (201) into two parts, the cavity near the connecting plate (102) side is used for heat dissipation, and the cavity away from the connecting plate (102) side is used for absorbing heat, and the center column (205) is used for increasing the distance between the two cavities, and the heat transfer between the two spaces is blocked.

2. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 1, characterized in that: The outer wall of the shell (1) is fixedly connected with the double-shaft motor (103), the output end of the double-shaft motor (103) is fixedly connected with the connecting shaft (104), one end of the connecting shaft (104) away from the double-shaft motor (103) is fixedly connected with the sleeve (105), the outer wall of the sleeve (105) is sleeved with the conveying belt (109), when the equipment needs to rotate the heat dissipation direction of the heat exchange mechanism (2), the double-shaft motor (103) drives the connecting shaft (104) to rotate, the rotating connecting shaft (104) drives the sleeve (105) to rotate, and then provides power for the rotation of the heat exchange mechanism (2).

3. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 2, characterized in that: The both ends of the hollow column (201) are fixedly connected with the connecting pipe one (203), the outer wall of the connecting pipe one (203) is rotatably connected with the heat dissipation assembly (21) through the bearing, and the outer wall of the connecting pipe one (203) is rotatably connected with the sleeve (105) through the conveying belt (109). When the sleeve (105) rotates, the connecting pipe one (203) rotates with the conveying belt (109), and the rotating connecting pipe one (203) drives the whole heat exchange mechanism (2) to rotate.

4. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 3, characterized in that: The inner wall of the center column (205) is provided with a water passing arc (207), and the both ends of the center column (205) are fixedly connected with the protruding column (206). After the cooling liquid is sent into the equipment, it is sent into the space between the hollow column (201) and the center column (205) through the water passing arc (207), and the flow area of the liquid is reduced by arranging the protruding column (206), so as to improve the flow speed of the liquid.

5. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 4, characterized in that: The heat dissipation assembly (21) includes a heat conducting hollow plate (211), the inner wall of the heat conducting hollow plate (211) is provided with a notch three (212), the both ends of the heat conducting hollow plate (211) are fixedly connected with the flow guide plate (213), and the outer wall of the flow guide plate (213) is fixedly connected with the shell (1). The heat conducting hollow plate (211) carries 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 avoid the heat conducting hollow plate (211) blocking the moving space of the conveying belt (109).

6. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 5, characterized in that: The inner wall of the guide plate (213) is fixedly connected with a connecting pipe two (214), one side of the connecting pipe two (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 with the connecting pipe one (203) through a bearing, after the cooling liquid enters the equipment, a part of the liquid enters the main body of the heat exchange mechanism (2) through the connecting ring (215), and another part enters the heat conduction hollow plate (211) through the guide plate (213).

7. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 6, characterized in that: The inner wall of the connecting pipe two (214) is fixedly connected with a flow resistance plate (216), one end of the connecting pipe two (214) away from the connecting ring (215) is fixedly connected with the right-angle pipe (106), the flow resistance plate (216) divides the liquid entering the inside of the connecting pipe two (214), the liquid entering the inside of the guide plate (213) will not cause the liquid flow rate in the heat conduction hollow plate (211) to decrease due to the too fast flow rate in the connecting pipe two (214), and the flow resistance plate (216) plays a role of stable flow division.

8. The water injection cooling structure for fireproof plugging of a valve hall of a converter station according to claim 7, characterized in that: The heat conduction assembly (22) comprises a heat conduction sheet (221), the inner wall of the gap two (202) is fixedly connected with the heat conduction sheet (221), the inner side of the heat conduction sheet (221) is fixedly connected with a heat conduction fin (222), one end of the heat conduction fin (222) away from the heat conduction sheet (221) is fixedly connected with the center column (205), and the heat conduction fin (222) sends the heat absorbed by the heat conduction sheet (221) from the shell one (1) into the inside of the heat exchange mechanism (2) to heat radiate the outer side of the shell one (1).

Images