Cooling equipment for multi-path parallel water supply of lower oil cylinder of large pump station

Abstract

The invention relates to the technical field of pump station oil cylinder maintenance equipment, and particularly discloses large pump station lower oil cylinder multi-path parallel water supply cooling equipment which comprises a mounting plate, a top cover is fixedly connected to the upper surface of the middle of the mounting plate through bolts, and a supporting frame is fixedly connected to the lower surface of the edge of the mounting plate. The bottom face of the top cover is arranged to be in a groove shape, the upper surface of the middle of the mounting plate is arranged to be in a penetrating shape, and the bottom face of the mounting plate is fixedly connected with a separation cover in a buckled mode. According to the steam turbine oil heat absorption device, the multiple sets of first heat dissipation pipes and second heat dissipation pipes are arranged, cooling water is refined and conveyed after entering the separation cover, and therefore the heat absorption effect on steam turbine oil is greatly improved; in this way, the flowing time of cooling water in the first heat dissipation pipe and the second heat dissipation pipe can be greatly prolonged in the same space, then the heat absorption time of steam turbine oil is greatly prolonged, and the cooling effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of pump station oil cylinder maintenance equipment, in particular to a cooling device for multi-channel parallel water supply of oil cylinders in a large pump station. Background Art

[0002] The pump station oil cylinder is a key component in the pump station oil system. The oil cylinder is filled with turbine oil, which acts as a bearing lubricant and cooling medium. The cooling system plays a vital role in the maintenance and operation of the pump station oil cylinder. Since the turbine oil will accumulate a lot of heat when the oil cylinder is working, if the heat is not dissipated in time, it may cause the bearing to overheat, affect the normal operation of the bearing, and even cause equipment damage. Therefore, designing an efficient cooling device is very important for the maintenance of the pump station oil cylinder.

[0003] Traditional cooling equipment usually adopts a single heat dissipation method, such as direct water cooling or air cooling. These methods may not meet the cooling needs of the oil cylinder under a large pump station in some cases, especially when the water supply pipelines of the cooling equipment are connected in series. If one of the equipment is slammed, the equipment on other pipelines will not be able to operate. In addition, the existing cooling equipment may have some limitations in structural design, such as unreasonable layout of the heat pipe, resulting in a short flow path of the cooling water and poor heat dissipation effect; or the heat pipe is not easy to disassemble, which brings inconvenience to maintenance and cleaning. Summary of the invention

[0004] The present invention provides a cooling device for multi-channel parallel water supply of the lower oil cylinder of a large pump station, which solves the problems mentioned in the above background technology.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: A cooling device for multi-channel parallel water supply of the lower cylinder of a large pump station, comprising a mounting plate, a top cover is fixedly connected to the middle upper surface of the mounting plate by bolts, a support frame is fixedly connected to the edge lower surface of the mounting plate, the bottom surface of the top cover is arranged in a groove shape, the middle upper surface of the mounting plate is arranged in a through shape, the bottom surface of the mounting plate is fixedly buckled and connected with a separation cover, and further comprising: A cooling mechanism, wherein the cooling mechanism is fixedly mounted on the separation cover and is used to cool the water flow; An auxiliary mechanism, wherein the auxiliary mechanism is fixedly mounted on the cooling mechanism and is used to assist the cooling mechanism in working; The cooling mechanism comprises a liquid outlet pipe, the liquid outlet pipe is passed through and fixedly connected to the upper surface of the edge of the top cover, the end of the top cover away from the liquid outlet pipe is passed through and fixedly connected to a liquid inlet pipe, the length of the liquid inlet pipe is longer than the liquid outlet pipe, the bottom of the liquid inlet pipe is passed through and fixedly connected to an isolation plate, the isolation plate is fixedly connected to the middle inner surface of the separation cover, the cross-section of the isolation plate is set to be L-shaped, an isolation tube is arranged on the outer side of the liquid inlet pipe, the bottom of the isolation tube is fixedly connected to the upper surface of the isolation plate, the top of the isolation tube is fixedly connected to the inner surface of the top cover, the inner surface of the separation cover is passed through and fixedly connected to a first heat dissipation tube, and the inner surface of the separation cover away from the first heat dissipation tube is passed through and fixedly connected to a second heat dissipation tube.

[0006] Preferably, the top of the first heat dissipation tube is connected to the liquid inlet pipe, the top of the second heat dissipation tube is connected to the liquid outlet pipe, the first heat dissipation tube is set to S shape, the second heat dissipation tube is also set to S shape, and the bottom of the first heat dissipation tube is connected to the bottom of the second heat dissipation tube.

[0007] Preferably, eight first heat dissipation tubes are arranged at fixed intervals along the bottom surface of the separation cover, and eight second heat dissipation tubes are arranged at fixed intervals along the bottom surface of the separation cover. Adjacent first heat dissipation tubes are arranged in an upward and downward offset relationship, and adjacent second heat dissipation tubes are also arranged in an upward and downward offset relationship, wherein the first heat dissipation tubes and the second heat dissipation tubes are respectively arranged in parallel.

[0008] Preferably, a plug-in tube is fixedly connected to the bottom outer surface of the first heat dissipation tube, and the plug-in tube is also fixedly connected to the bottom outer surface of the second heat dissipation tube. A diffuser ring is fixedly connected to one end of the plug-in tube away from the first heat dissipation tube and the second heat dissipation tube. Two diffuser rings are arranged as a group, and a plug-in groove is provided on the diffuser ring, and the plug-in tube is plugged into the plug-in groove.

[0009] Preferably, a connecting column is fixedly connected to the inner surface of the diffuser ring, and a differentiation tube is fixedly connected through the surface of the diffuser ring close to the plug-in tube. Six differentiation tubes are arranged at fixed intervals around the central axis of the diffuser ring, and the differentiation tubes are arranged on the outside of the connecting column.

[0010] Preferably, a stabilizing ring is fixedly connected to the inner surface of the plug-in tube, the stabilizing ring is configured as a special-shaped ring, the inner surface of the stabilizing ring is fixedly connected to the bottom outer surfaces of the first heat dissipation tube and the second heat dissipation tube, and the inner surface of the stabilizing ring at one end away from the first heat dissipation tube and the second heat dissipation tube is configured as an inclined shape.

[0011] Preferably, the inner end of the stabilizing ring is fixedly connected with a guide ring, the outer surface of the guide ring is fixedly connected to the inner surface of the plug-in tube, the inner surface of the guide ring is set as an inclined surface, the end of the guide ring away from the stabilizing ring is attached to the outer surface of the diffuser ring, and the inner surface of the end of the guide ring close to the diffuser ring is fixedly connected with a stabilizing frame, and six stabilizing frames are arranged at fixed intervals around the central axis of the guide ring, and the six stabilizing frames are arranged between adjacent separation tubes. The cooling device is immersed in the turbine oil in the lower oil cylinder as a whole, and the high-temperature cooling water for cooling the turbine oil in the lower oil cylinder enters the cavity between the isolation plate and the separation cover through the liquid inlet pipe after external cooling, and then enters the first heat dissipation pipe connected to the separation cover, flows through multiple groups of first heat dissipation pipes to the second heat dissipation pipe for shunting and absorbing heat, takes out the heat generated when the turbine oil is working, and finally enters the top cover through multiple groups of second heat dissipation pipes, and finally flows to the outside again through the liquid outlet pipe carrying the high-temperature cooling water for cooling, thereby realizing the circulation cooling of the lower oil cylinder.

[0012] Preferably, the auxiliary mechanism includes a pressure groove, which is opened inside the connecting column, and the end of the pressure groove close to the first heat dissipation tube is set to an open shape, and the inner surface of the end of the pressure groove close to the first heat dissipation tube is elastically and slidably connected with an extrusion block, and the outer surfaces of both ends of the connecting column are symmetrically provided with mounting grooves, and the diffuser ring is fixedly embedded in the mounting groove, and the interior of the mounting groove is connected to a pressure relief hole, and the pressure relief hole is connected to the pressure groove.

[0013] Preferably, a transmission groove is opened inside the diffuser ring, the inner side of the transmission groove is connected to the pressure relief hole, the outer inner surface of the transmission groove is fixedly connected to a mounting ring, the outer surface of the mounting ring is fixedly connected to an expansion bag, the expansion bag is arranged in a ring shape, the expansion bag is arranged on the inner side of the plug-in groove, the inner surface of the expansion bag is penetrated by an air hole, and the air hole is connected to the transmission groove.

[0014] The present invention provides a cooling device for multi-channel parallel water supply for the lower oil cylinder of a large pump station. It has the following beneficial effects: 1. The cooling equipment of the multi-channel parallel water supply for the lower cylinder of the large pump station is provided with multiple groups of first heat dissipation pipes and second heat dissipation pipes, so that the cooling water is finely transmitted after entering the separation cover, thereby greatly improving the heat absorption effect on the turbine oil, and by arranging the first heat dissipation pipe and the second heat dissipation pipe into an S shape, it is possible to greatly extend the flow time of the cooling water in the first heat dissipation pipe and the second heat dissipation pipe in the same space, thereby greatly extending the heat absorption time of the turbine oil, so that the cooling effect is further improved, and by arranging the first heat dissipation pipe and the second heat dissipation pipe in an upper and lower staggered manner, the heat absorption range of the turbine oil in the lower cylinder of the cooling equipment can be greatly improved, so that the adjacent first heat dissipation pipe and the second heat dissipation pipe can obtain a good heat absorption effect, thereby further improving the heat absorption effect on the turbine oil.

[0015] 2. The cooling equipment of the multi-channel parallel water supply for the lower cylinder of the large pump station can make the first heat dissipation pipe and the second heat dissipation pipe detachable by plugging the first heat dissipation pipe and the second heat dissipation pipe on the diffuser ring, so as to facilitate the maintenance of the first heat dissipation pipe and the second heat dissipation pipe, which is different from the problem of difficult internal maintenance of the existing whole heat dissipation pipe. At the same time, after the initial heat absorption by the first heat dissipation pipe, the cooling water will be further refined through the differentiation pipe on the diffuser ring, and further heat absorption treatment will be achieved through the differentiation pipe. Finally, it will re-enter the external cooling through the final collective heat absorption of the second heat dissipation pipe. The cooling effect on the turbine oil is greatly improved by setting a three-stage heat absorption, and the cooling effect on the lower cylinder is ensured. At the same time, the connection stability between the first heat dissipation pipe and the second heat dissipation pipe and the diffuser ring can be ensured by setting a stabilizing ring and a guiding ring, and the inner surfaces of the stabilizing ring and the guiding ring can be set as inclined surfaces to achieve the guiding effect of the cooling water, so as to avoid the problem of rapid scale generation due to the presence of flow dead angles at both ends of the diffuser ring when the cooling water passes through the differentiation pipe.

[0016] 3. In the cooling equipment of the multi-channel parallel water supply of the oil cylinder under the large pump station, when the cooling water flows out of the first heat dissipation pipe and enters the differentiation pipe, the water pressure will continuously squeeze the extrusion block, so that the extrusion block slides into the pressure groove under the action of the water pressure, that is, the air pressure in the pressure groove is compressed, and the air pressure is transmitted to the transmission groove in the diffuser ring through the pressure relief hole, that is, finally enters the expansion bag through the air hole connected to the transmission groove, causing the air pressure in the expansion bag to increase and expand outward, so that the outer surface of the expansion bag is firmly attached to the inner surface of the end of the plug pipe due to the action of the air pressure, thereby not only The connection force between the plug-in tube and the diffuser ring can be enhanced, and the plug-in tube can be sealed to avoid leakage of cooling water. The high temperature of the turbine oil provides an auxiliary effect to further enhance the sealing effect and avoid leakage of cooling water. When the device is stopped for maintenance, the device is moved out of the lower oil cylinder as a whole. At this time, the effects of high temperature and water pressure are lost, the expansion bag is reset, and the squeezing effect on the inner wall of the plug-in tube is lost, thereby facilitating the separation of the plug-in tube and the diffuser ring, achieving quick disassembly and automatic sealing during operation, thereby greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the present invention; Figure 2 is a side view of the present invention; Figure 3 It is a schematic diagram of the internal structure of the top cover of the present invention; Figure 4 It is a structural schematic diagram of the isolation plate of the present invention; Figure 5 It is a schematic diagram of the internal structure of the plug-in tube of the present invention; Figure 6 It is a schematic diagram of the structure of the differentiation tube of the present invention; Figure 7 It is a schematic diagram of the internal structure of the connecting column of the present invention; Figure 8 It is a schematic structural diagram of the expansion bag of the present invention.

[0018] In the figure: 1. mounting plate; 2. top cover; 3. support frame; 4. separation cover; 5. cooling mechanism; 51. liquid outlet pipe; 52. liquid inlet pipe; 53. isolation plate; 54. isolation pipe; 55. first heat dissipation pipe; 56. second heat dissipation pipe; 57. plug-in pipe; 58. diffuser ring; 59. plug-in slot; 510. connecting column; 511. diffuser pipe; 512. stabilizing ring; 513. guide ring; 514. stabilizing frame; 6. auxiliary mechanism; 61. pressure groove; 611. extrusion block; 62. mounting groove; 63. pressure relief hole; 64. transmission groove; 65. mounting ring; 66. expansion bag; 67. air hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] First embodiment: Figures 1 to 8 As shown, the present invention provides a technical solution: a cooling device for multi-channel parallel water supply of the lower cylinder of a large pump station, comprising a mounting plate 1, a top cover 2 is fixedly connected to the middle upper surface of the mounting plate 1 by bolts, a support frame 3 is fixedly connected to the edge lower surface of the mounting plate 1, the bottom surface of the top cover 2 is arranged in a groove shape, the middle upper surface of the mounting plate 1 is arranged in a through shape, the bottom surface of the mounting plate 1 is fixedly buckled and connected with a separation cover 4, and further comprising: A cooling mechanism 5, which is fixedly mounted on the separation cover 4 and is used to cool the water flow; Auxiliary mechanism 6, the auxiliary mechanism 6 is fixedly mounted on the cooling mechanism 5, and the auxiliary mechanism 6 is used to assist the cooling mechanism 5 in working; The cooling mechanism 5 includes a liquid outlet pipe 51, which is fixedly connected to the upper surface of the edge of the top cover 2. A liquid inlet pipe 52 is fixedly connected to the end of the top cover 2 away from the liquid outlet pipe 51. The length of the liquid inlet pipe 52 is longer than that of the liquid outlet pipe 51. An isolation plate 53 is fixedly connected to the bottom of the liquid inlet pipe 52. The isolation plate 53 is fixedly connected to the middle inner surface of the separation cover 4. The cross-section of the isolation plate 53 is set to be L-shaped. An isolation pipe 54 is set on the outer side of the liquid inlet pipe 52. The bottom of the isolation pipe 54 is fixedly connected to the upper surface of the isolation plate 53. The top of the isolation pipe 54 is fixedly connected to the inner surface of the top cover 2. The inner surface of the separation cover 4 is fixedly connected to a first heat dissipation pipe 55, and the inner surface of the separation cover 4 away from the first heat dissipation pipe 55 is fixedly connected to a second heat dissipation pipe 56.

[0021] The top of the first heat dissipation tube 55 is connected to the liquid inlet tube 52, and the top of the second heat dissipation tube 56 is connected to the liquid outlet tube 51. The first heat dissipation tube 55 is configured to be S-shaped, and the second heat dissipation tube 56 is also configured to be S-shaped. The bottom of the first heat dissipation tube 55 is connected to the bottom of the second heat dissipation tube 56.

[0022] Eight first heat dissipation tubes 55 are arranged at fixed intervals along the bottom surface of the separation cover 4, and eight second heat dissipation tubes 56 are arranged at fixed intervals along the bottom surface of the separation cover 4. Adjacent first heat dissipation tubes 55 are offset from each other vertically, and adjacent second heat dissipation tubes 56 are also offset from each other vertically, wherein the first heat dissipation tubes 55 and the second heat dissipation tubes 56 are respectively arranged in parallel.

[0023] A plug-in tube 57 is fixedly connected to the bottom outer surface of the first heat dissipation tube 55, and the plug-in tube 57 is also fixedly connected to the bottom outer surface of the second heat dissipation tube 56. A diffuser ring 58 is fixedly connected to one end of the plug-in tube 57 away from the first heat dissipation tube 55 and the second heat dissipation tube 56. Two diffuser rings 58 are arranged as a group. A plug-in groove 59 is opened on the diffuser ring 58, and the plug-in tube 57 is plugged into the plug-in groove 59.

[0024] The inner surface of the diffuser ring 58 is fixedly connected with a connecting column 510, and the surface of the diffuser ring 58 close to the plug-in tube 57 is penetrated and fixedly connected with a differentiation tube 511. Six differentiation tubes 511 are arranged at fixed intervals around the central axis of the diffuser ring 58, and the differentiation tubes 511 are arranged on the outside of the connecting column 510.

[0025] A stabilizing ring 512 is fixedly connected to the inner surface of the plug-in tube 57. The stabilizing ring 512 is set as a special-shaped ring. The inner surface of the stabilizing ring 512 is fixedly connected to the bottom outer surface of the first heat dissipation tube 55 and the second heat dissipation tube 56. The inner surface of the stabilizing ring 512 away from the first heat dissipation tube 55 and the second heat dissipation tube 56 is set to an inclined shape.

[0026] The inner end of the stabilizing ring 512 is fixedly connected to a guide ring 513, the outer surface of the guide ring 513 is fixedly connected to the inner surface of the plug-in tube 57, the inner surface of the guide ring 513 is arranged as an inclined surface, one end of the guide ring 513 away from the stabilizing ring 512 is attached to the outer surface of the diffuser ring 58, the inner surface of one end of the guide ring 513 close to the diffuser ring 58 is fixedly connected to a stabilizing frame 514, six stabilizing frames 514 are arranged at fixed intervals around the central axis of the guide ring 513, and the six stabilizing frames 514 are arranged between adjacent differentiation tubes 511.

[0027] When working, the cooling device is immersed in the turbine oil in the lower oil cylinder as a whole. The high-temperature cooling water for cooling the turbine oil in the lower oil cylinder enters the cavity between the isolation plate 53 and the separation cover 4 through the liquid inlet pipe 52 after external cooling, and then enters the first heat dissipation pipe 55 connected to the separation cover 4, flows through multiple groups of first heat dissipation pipes 55 to the second heat dissipation pipe 56 for shunting and heat absorption, takes out the heat generated by the turbine oil when working, and finally enters the top cover 2 through multiple groups of second heat dissipation pipes 56, and finally flows to the outside through the liquid outlet pipe 51 again for cooling, so as to realize the circulation cooling of the lower oil cylinder. By setting a plurality of first heat dissipation tubes 55 and second heat dissipation tubes 56, the cooling water is finely transmitted after entering the separation cover 4, thereby greatly improving the heat absorption effect on the turbine oil. By setting the first heat dissipation tube 55 and the second heat dissipation tube 56 to be S-shaped, the flow time of the cooling water in the first heat dissipation tube 55 and the second heat dissipation tube 56 can be greatly extended in the same space, thereby greatly extending the heat absorption time of the turbine oil, so that the cooling effect is further improved. By setting the first heat dissipation tube 55 and the second heat dissipation tube 56 in an up-down staggered manner, the heat absorption range of the turbine oil in the lower oil cylinder of the cooling device can be greatly extended. The first heat dissipation tube 55 and the second heat dissipation tube 56 are high, so that the adjacent first heat dissipation tube 55 and the second heat dissipation tube 56 can obtain good heat absorption effect, thereby further improving the heat absorption effect on the turbine oil. By plugging the first heat dissipation tube 55 and the second heat dissipation tube 56 into the diffuser ring 58, the first heat dissipation tube 55 and the second heat dissipation tube 56 can be detachable, thereby facilitating the maintenance of the first heat dissipation tube 55 and the second heat dissipation tube 56, which is different from the problem of difficult maintenance inside the existing whole heat dissipation tube. At the same time, after the cooling water has initially absorbed heat through the first heat dissipation tube 55, it will be further refined through the differentiation tube 511 on the diffuser ring 58, and through the differentiation tube 511 Further heat absorption treatment is achieved, and finally the final collective heat absorption of the second heat dissipation tube 56 re-enters the external cooling. By setting up three-stage heat absorption, the cooling effect on the turbine oil is greatly improved, ensuring the cooling effect on the lower oil cylinder. At the same time, by setting up a stabilizing ring 512 and a guide ring 513, the plug-in stability between the first heat dissipation tube 55 and the second heat dissipation tube 56 and the diffuser ring 58 can be ensured, and the inner surfaces of the stabilizing ring 512 and the guide ring 513 are set as inclined surfaces to achieve the guiding effect of the cooling water, avoiding the problem of rapid scale generation due to the presence of flow dead angles at both ends of the diffuser ring 58 when the cooling water passes through the differentiation tube 511.

[0028] Second embodiment: Figures 1 to 8As shown, the auxiliary mechanism 6 includes a pressure groove 61, which is opened inside the connecting column 510, and the end of the pressure groove 61 close to the first heat dissipation tube 55 is set to an open shape, and the inner surface of the end of the pressure groove 61 close to the first heat dissipation tube 55 is elastically slidably connected with an extrusion block 611, and the outer surfaces of both ends of the connecting column 510 are symmetrically provided with mounting grooves 62, and the diffuser ring 58 is fixedly embedded in the mounting groove 62, and the interior of the mounting groove 62 is connected to open a pressure relief hole 63, and the pressure relief hole 63 is connected to the pressure groove 61.

[0029] A transmission groove 64 is provided inside the diffuser ring 58, and the inner side of the transmission groove 64 is connected to the pressure relief hole 63. A mounting ring 65 is fixedly connected to the inner surface of the outer side of the transmission groove 64, and an expansion bag 66 is fixedly connected to the outer surface of the mounting ring 65. The expansion bag 66 is arranged in a ring shape and is arranged on the inner side of the plug-in groove 59. An air hole 67 is penetrated through the inner surface of the expansion bag 66, and the air hole 67 is connected to the transmission groove 64.

[0030] During operation, when the cooling water flows out of the first heat dissipation pipe 55 and enters the differentiation pipe 511, the water pressure will continuously squeeze the squeezing block 611, so that the squeezing block 611 slides into the pressure groove 61 under the action of the water pressure, that is, the air pressure in the pressure groove 61 is compressed, and the air pressure is transmitted to the transmission groove 64 in the diffuser ring 58 through the pressure relief hole 63, that is, finally enters the expansion bag 66 through the air hole 67 connected to the transmission groove 64, so that the air pressure in the expansion bag 66 increases and expands outward, so that the outer surface of the expansion bag 66 is firmly attached to the inner surface of the end of the plug-in pipe 57 due to the action of the air pressure, thereby not only The connection force between the plug-in tube 57 and the diffuser ring 58 can be enhanced, and the plug-in tube 57 can be sealed to avoid leakage of cooling water. The high temperature of the turbine oil provides an auxiliary effect to further enhance the sealing effect and avoid leakage of cooling water. When the device is stopped for maintenance, the device is moved out of the lower oil cylinder as a whole. At this time, the effects of high temperature and water pressure are lost, the expansion bag 66 is reset, and the squeezing effect on the inner wall of the plug-in tube 57 is lost, thereby facilitating the separation of the plug-in tube 57 from the diffuser ring 58, achieving quick disassembly and automatic sealing during operation, thereby greatly improving the practicality of the device.

[0031] 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. In the absence of further restrictions. The sentence "includes an element defined by... does not exclude the existence of other identical elements in the process, method, article or device including the element".

Claims

1. A cooling device for multi-channel parallel water supply to the lower cylinder of a large pump station, comprising a mounting plate (1), characterized in that: The middle upper surface of the mounting plate (1) is fixedly connected to a top cover (2) by bolts, the lower surface of the edge of the mounting plate (1) is fixedly connected to a support frame (3), the bottom surface of the top cover (2) is arranged in a groove shape, the middle upper surface of the mounting plate (1) is arranged in a through shape, the bottom surface of the mounting plate (1) is fixedly buckled and connected to a separation cover (4), and further comprises: A cooling mechanism (5), the cooling mechanism (5) being fixedly mounted on the separation cover (4), and the cooling mechanism (5) being used to cool the water flow; An auxiliary mechanism (6), the auxiliary mechanism (6) being fixedly mounted on the cooling mechanism (5), and the auxiliary mechanism (6) being used to assist the cooling mechanism (5) in operating; The cooling mechanism (5) comprises a liquid outlet pipe (51), the liquid outlet pipe (51) is penetrated and fixedly connected to the upper surface of the edge of the top cover (2), an end of the top cover (2) away from the liquid outlet pipe (51) is penetrated and fixedly connected to a liquid inlet pipe (52), the length of the liquid inlet pipe (52) is longer than the liquid outlet pipe (51), the bottom of the liquid inlet pipe (52) is penetrated and fixedly connected to an isolation plate (53), the isolation plate (53) is fixedly connected to the middle inner surface of the separation cover (4), the cross section of the isolation plate (53) is set to be L-shaped, an isolation pipe (54) is arranged on the outer side of the liquid inlet pipe (52), the bottom of the isolation pipe (54) is fixedly connected to the upper surface of the isolation plate (53), the top of the isolation pipe (54) is fixedly connected to the inner surface of the top cover (2), the inner surface of the separation cover (4) is penetrated and fixedly connected to a first heat dissipation pipe (55), and the inner surface of the separation cover (4) away from the first heat dissipation pipe (55) is penetrated and fixedly connected to a second heat dissipation pipe (56).

2. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 1 is characterized by: The top of the first heat dissipation tube (55) is connected to the liquid inlet tube (52), the top of the second heat dissipation tube (56) is connected to the liquid outlet tube (51), the first heat dissipation tube (55) is configured to be S-shaped, the second heat dissipation tube (56) is also configured to be S-shaped, and the bottom of the first heat dissipation tube (55) is connected to the bottom of the second heat dissipation tube (56).

3. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 2 is characterized in that: Eight first heat dissipation tubes (55) are arranged at fixed intervals along the bottom surface of the separation cover (4), and eight second heat dissipation tubes (56) are arranged at fixed intervals along the bottom surface of the separation cover (4). Adjacent first heat dissipation tubes (55) are arranged in a vertically staggered manner, and adjacent second heat dissipation tubes (56) are also arranged in a vertically staggered manner, wherein the first heat dissipation tubes (55) and the second heat dissipation tubes (56) are respectively arranged in parallel.

4. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 3 is characterized in that: A plug-in tube (57) is fixedly connected to the outer surface of the bottom of the first heat dissipation tube (55), and the plug-in tube (57) is also fixedly connected to the outer surface of the bottom of the second heat dissipation tube (56). A diffuser ring (58) is fixedly plugged into one end of the plug-in tube (57) away from the first heat dissipation tube (55) and the second heat dissipation tube (56). Two diffuser rings (58) are arranged as a group. A plug-in groove (59) is provided on the diffuser ring (58), and the plug-in tube (57) is plugged into the plug-in groove (59).

5. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 4 is characterized in that: The inner surface of the diffuser ring (58) is fixedly connected to a connecting column (510), and a differentiation tube (511) is fixedly connected to the surface of the diffuser ring (58) on a side close to the plug-in tube (57), and six differentiation tubes (511) are arranged at fixed intervals around the central axis of the diffuser ring (58), and the differentiation tubes (511) are arranged on the outside of the connecting column (510).

6. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 5 is characterized in that: The inner surface of the plug-in tube (57) is fixedly connected to a stabilizing ring (512), the stabilizing ring (512) being configured as a special-shaped ring, the inner surface of the stabilizing ring (512) being fixedly connected to the outer surfaces of the bottoms of the first heat dissipation tube (55) and the second heat dissipation tube (56), and the inner surface of the stabilizing ring (512) at one end away from the first heat dissipation tube (55) and the second heat dissipation tube (56) being configured as an inclined shape.

7. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 6 is characterized by: The inner end of the stabilizing ring (512) is fixedly connected to a guide ring (513); the outer surface of the guide ring (513) is fixedly connected to the inner surface of the plug-in tube (57); the inner surface of the guide ring (513) is arranged as an inclined surface; one end of the guide ring (513) away from the stabilizing ring (512) is attached to the outer surface of the diffuser ring (58); the inner surface of one end of the guide ring (513) close to the diffuser ring (58) is fixedly connected to a stabilizing frame (514); six stabilizing frames (514) are arranged at fixed intervals around the central axis of the guide ring (513); and the six stabilizing frames (514) are arranged between adjacent differentiation tubes (511).

8. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 7 is characterized in that: The auxiliary mechanism (6) comprises a pressure groove (61), the pressure groove (61) being provided inside the connecting column (510), the end of the pressure groove (61) close to the first heat dissipation tube (55) being arranged in an open shape, the inner surface of the end of the pressure groove (61) close to the first heat dissipation tube (55) being elastically slidably connected to an extrusion block (611), the outer surfaces of both ends of the connecting column (510) being symmetrically provided with mounting grooves (62), the diffuser ring (58) being fixedly embedded in the mounting groove (62), the interior of the mounting groove (62) being connected to a pressure relief hole (63), and the pressure relief hole (63) being connected to the pressure groove (61).

9. The cooling device for multi-channel parallel water supply for the lower cylinder of a large pump station according to claim 8 is characterized in that: A transmission groove (64) is provided inside the diffuser ring (58), the inner side of the transmission groove (64) is communicated with the pressure relief hole (63), a mounting ring (65) is fixedly connected to the inner surface of the outer side of the transmission groove (64), an expansion bag (66) is fixedly connected to the outer surface of the mounting ring (65), the expansion bag (66) is arranged in a ring shape, the expansion bag (66) is arranged on the inner side of the plug-in groove (59), an air hole (67) is formed through the inner surface of the expansion bag (66), and the air hole (67) is communicated with the transmission groove (64).

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