Stator cooling device of synchronous phase modifier

Abstract

The invention provides a stator cooling device of a synchronous phase modifier, which belongs to the technical field of cooling devices and comprises a cooling liquid suction pump, an input port of the cooling liquid suction pump is communicated with a cooling liquid storage tank, and an output port of the cooling liquid suction pump is sequentially communicated with a cooling liquid conveying pipe, a first connecting pipe and a second connecting pipe; the cooling device further comprises a positioning mounting rod and a positioning connecting rotary disc, the positioning connecting rotary disc is rotationally mounted on the positioning mounting rod, and the two ends of the positioning mounting rod are fixedly mounted on the outer surfaces of the same sides of the cooling liquid conveying pipe and the first connecting pipe correspondingly. At least one pipeline connecting cylinder is connected to the positioning connecting turntable, and a filtering mechanism is arranged in the pipeline connecting cylinder; the filtering mechanism is arranged in the pipeline connecting cylinders, and the multiple pipeline connecting cylinders are sequentially installed between the first connecting pipe and the cooling liquid conveying pipe, so that the filtering mechanism is rapidly replaced, and the downtime is shortened.

Description

Technical Field

[0001] This invention belongs to the technical field of cooling devices, and specifically relates to a stator cooling device for a synchronous condenser. Background Technology

[0002] Synchronous condensers generate a lot of heat during operation, so a cooling device is installed in the synchronous condenser to cool the stator and prevent the stator core, windings and rotor coils from burning out. During cooling, the valve is opened so that the cooling pump can deliver the coolant in the cooling tank from the cooling pipe to the stator of the synchronous condenser. The flow of the coolant carries away the heat from the stator, thus cooling it.

[0003] However, during the water cooling process, a large number of impurities in the water can clog the filtration system. The current solution is to disassemble the filter mechanism, clean it, and then reinstall it to ensure the operation of the system. However, disassembling and cleaning the filter mechanism takes a long time, resulting in a longer downtime for the synchronous condenser, which affects the working efficiency of the synchronous condenser and also affects the effectiveness of the cooling device.

[0004] Therefore, a stator cooling device for a synchronous condenser that allows for easy replacement of the filter mechanism is needed. Summary of the Invention

[0005] To address the above problems, this invention proposes a stator cooling device for a synchronous condenser, comprising a coolant suction pump.

[0006] The coolant suction pump inlet is connected to the coolant storage tank, and the outlet is connected in sequence to the coolant delivery pipe, the first connecting pipe and the second connecting pipe; and a pipe opening and closing valve is provided between the first connecting pipe and the second connecting pipe.

[0007] The cooling device also includes a positioning mounting rod and a positioning connecting turntable.

[0008] The positioning and connecting turntable is rotatably mounted on the positioning and mounting rod, and the two ends of the positioning and mounting rod are respectively fixedly mounted on the outer surface of the coolant delivery pipe and the first connecting pipe on the same side; at least one pipe connecting cylinder is connected to the positioning and connecting turntable, and a filter mechanism is provided inside the pipe connecting cylinder; the two ends of the pipe connecting cylinder are respectively connected to the first inlet of the first connecting pipe and the coolant delivery pipe.

[0009] Furthermore, first connecting nuts are rotatably installed at the first inlet and the outlet of the coolant delivery pipe, respectively, and the two first connecting nuts are threadedly connected to both ends of the pipe connecting cylinder.

[0010] Furthermore, the filtration mechanism includes a fixed filter plate;

[0011] The fixed filter plate is fixedly installed inside the pipe connecting cylinder; the fixed filter plate is connected to the sliding filter plate through a second reset elastic element; the sliding filter plate is slidably installed inside the pipe connecting cylinder and is located on the side of the fixed filter plate closer to the coolant delivery pipe.

[0012] Furthermore, the filtering mechanism also includes a sliding indicator block and a positioning connecting rod.

[0013] The inner side of the pipe connecting cylinder is provided with a guide positioning groove; the sliding indicator block is fixedly connected to the outer surface of the sliding filter plate; the sliding indicator block is slidably installed in the guide positioning groove, and a position limiting strip is provided in the guide positioning groove; the inner side of the sliding indicator block is hinged to the positioning connecting rod by a torsion spring; a position limiting pawl is fixedly connected to the outer surface of the positioning connecting rod, and the position limiting pawl engages with the position limiting strip.

[0014] Furthermore, the first connecting pipe is provided with a first input port and at least two first output ports;

[0015] The second connecting pipe is provided with at least two second input ports and a second output port;

[0016] Both the first output port and the second input port are equipped with sealing structures. The first connecting pipe and the second connecting pipe are placed symmetrically, and a pipe opening and closing valve is connected between a pair of opposite first output ports and second input ports. Spare pipe opening and closing valves are connected between the remaining opposite first output ports and second input ports.

[0017] Furthermore, the sealing structure includes a positioning sealing ring, a limiting mounting ring, a pressing elastic element, a sliding sealing baffle, a coolant flow hole, and a pipe sealing column;

[0018] The limiting mounting ring is fixedly installed inside the first output port or the second input port, and the positioning sealing ring is fixedly installed at the port of the first output port or the port of the second input port, with the limiting mounting ring located on the side of the positioning sealing ring away from the pipeline opening and closing valve; the sliding sealing baffle is slidably installed between the limiting mounting ring and the positioning sealing ring; the sliding sealing baffle is connected to the limiting mounting ring through a clamping elastic element; the sliding sealing baffle is provided with several coolant flow holes;

[0019] The pipe sealing column is fixedly installed on the side of the sliding sealing baffle away from the limiting installation ring, and the positioning sealing ring is fitted on the outer surface of the pipe sealing column.

[0020] Furthermore, the pipeline opening and closing valve includes a pipeline.

[0021] A valve core is rotatably mounted on the pipeline, and second connecting nuts are connected to both ends of the pipeline. The two second connecting nuts are threadedly connected to the first output port and the second input port, respectively.

[0022] Furthermore, a second sealing rubber ring is provided at each end of the second connecting nut, and the two second sealing rubber rings are sealed to the pipe and the first output port or the second input port.

[0023] Furthermore, the pipeline opening and closing valve also includes a sliding connecting plate and a positioning clamping rod.

[0024] The outer surface of the pipe near the port is provided with a guide limiting groove, and a first reset elastic element is provided in the guide limiting groove; the sliding connecting plate is slidably installed in the guide limiting groove; a positioning extrusion rod is provided on the end of the sliding connecting plate away from the valve core; the positioning extrusion rod is located inside the pipe and abuts against the pipe sealing column.

[0025] Furthermore, one end of the sliding connecting plate protruding from the pipe is engaged in the position limiting groove inside the second connecting nut.

[0026] Beneficial effects:

[0027] 1. This invention achieves rapid replacement of the filter mechanism and reduces downtime by setting the filter mechanism in the pipe connecting cylinder and installing multiple pipe connecting cylinders sequentially between the first connecting pipe and the coolant delivery pipe.

[0028] 2. This invention filters impurities in the coolant by setting a sliding filter plate in the pipe connecting cylinder, effectively preventing impurities from adhering to the pipe and causing blockage, ensuring the normal operation of the cooling device, and thus ensuring the cooling effect on the synchronous condenser stator. This avoids the synchronous condenser stator from overheating and burning out due to cooling device failure, and ensures the service life of the synchronous condenser stator.

[0029] 3. The present invention has multiple first output ports and multiple second input ports respectively on the first connecting pipe and the second connecting pipe, and connects the pipe opening and closing valves between the corresponding first output ports and second input ports. When the pipe opening and closing valve is damaged, the spare pipe opening and closing valve is installed between another set of first output ports and second input ports, thereby realizing the rapid replacement of the pipe opening and closing valve, reducing the downtime waiting time of the synchronous condenser, improving the working efficiency of the synchronous condenser, and thus improving the use effect of the cooling device.

[0030] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the cooling device in Embodiment 1 of the present invention is shown.

[0033] Figure 2 The diagram shows the installation positions of the coolant delivery pipe, sealing structure, pipe opening and closing valve, positioning and connecting turntable, first connecting pipe and second connecting pipe in Embodiment 1 of the present invention.

[0034] Figure 3 A schematic diagram showing the installation positions of the coolant delivery pipe, positioning rod, and first connecting pipe in Embodiment 1 of the present invention is provided.

[0035] Figure 4 A schematic diagram of the positioning and connecting turntable structure in Embodiment 1 of the present invention is shown.

[0036] Figure 5 An exploded view of the internal structure of the positioning and connecting turntable in Embodiment 1 of the present invention is shown.

[0037] Figure 6 It shows Figure 5 A partial structural diagram at point A.

[0038] Figure 7 A schematic diagram of the second connecting pipe structure in Embodiment 1 of the present invention is shown.

[0039] Figure 8 The diagram shows an enlarged schematic of the sealing structure and a partial structure in Embodiment 1 of the present invention.

[0040] Figure 9 An exploded view of a portion of the positioning and connecting turntable in Embodiment 1 of the present invention is shown.

[0041] Figure 10 It shows Figure 9 A schematic diagram of the local structure at point C.

[0042] Figure 11 A schematic diagram of the second connecting nut structure in Embodiment 1 of the present invention is shown.

[0043] Figure 12 A schematic diagram of the valve structure connecting the first four-way pipe and the second four-way pipe in Embodiment 2 of the present invention is shown.

[0044] In the diagram, 1. Positioning and installing the base plate;

[0045] 2. Coolant suction pump;

[0046] 3. Coolant storage tank;

[0047] 4. Coolant delivery pipe; 401. First connecting nut; 402. First sealing rubber ring;

[0048] 5. Sealing structure; 501. Positioning sealing ring; 502. Limiting mounting ring; 503. Compression elastic element; 504. Sliding sealing baffle; 505. Coolant flow hole; 506. Pipe sealing column;

[0049] 6. Pipeline opening and closing valve; 601. Guide limiting slide groove; 602. Sliding connecting plate; 603. First reset elastic element; 604. Positioning compression rod; 605. Second connecting nut; 606. Position limiting groove; 607. Second sealing rubber ring; 608. Pipeline; 609. Valve core;

[0050] 7. Positioning and mounting rod;

[0051] 8. Positioning and connecting turntable; 801. Pipe connecting cylinder; 802. Transparent observation window; 803. Guide positioning slide; 804. Fixed filter plate; 805. Second reset elastic element; 806. Sliding filter plate; 807. Sliding indicator block; 808. Position limiting strip; 809. Positioning connecting rod; 810. Position limiting pawl.

[0052] 9. First connecting pipe; 910. First Y-shaped pipe; 911. First input port; 912. First output port; 913. Second output port; 920. First four-way pipe;

[0053] 10. Second connecting pipe; 110. Second Y-shaped pipe; 111. Second input port; 112. Third input port; 113. Third output port; 120. Second four-way pipe. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1,

[0056] like Figure 1 As shown, Figure 1 A schematic diagram of the cooling device in Embodiment 1 of the present invention is shown. (See reference...) Figure 1 A stator cooling device for a synchronous condenser includes a coolant suction pump 2. The inlet of the coolant suction pump 2 is connected to a coolant storage tank 3, and the outlet is connected in sequence to a coolant delivery pipe 4, a first connecting pipe 9, a pipe opening and closing valve 6, and a second connecting pipe 10. The coolant suction pump 2 is bolted to the upper part of a positioning mounting base plate 1. The coolant storage tank 3 is bolted to the upper part of the positioning mounting base plate 1. The first connecting pipe 9 is provided with a first inlet and at least two first outlets. The second connecting pipe 10 is provided with at least two second inlets and a second outlet. The first connecting pipe 9 and the second connecting pipe 10 are placed symmetrically, and a pipe opening and closing valve 6 is connected between a pair of opposite first outlets and second inlets. A spare pipe opening and closing valve 6 is connected between the remaining opposite first outlets and second inlets. A sealing structure 5 is installed in both the first outlet and the second inlet. When the original pipeline opening and closing valve 6 is damaged, this device can first use the pre-installed spare pipeline opening and closing valve 6 or install the spare pipeline opening and closing valve 6 on site to put the cooling device into use as soon as possible before removing the damaged valve. This reduces the downtime waiting time of the synchronous condenser, improves the working efficiency of the synchronous condenser, and thus improves the performance of the cooling device.

[0057] Specifically, the first connecting pipe 9 includes a first Y-shaped pipe 910, which is provided with a first input port (i.e., first input port 911) and two first output ports (first output port 912 and second output port 913); the second connecting pipe 10 includes a second Y-shaped pipe 110, which is provided with two second input ports (second input port 111 and third input port 112) and a second output port (third output port 113); the first Y-shaped pipe 910 and the second Y-shaped pipe 110 are placed symmetrically, and a connecting pipe opening and closing valve 6 is connected between a pair of opposite first output ports and second input ports, and a sealing structure 5 is installed in both the first output port and the second input port. Preferably, the first Y-shaped tube 910 is provided with a first input port 911, a first output port 912, and a second output port 913. The first input port 911 is connected to the coolant delivery pipe 4. The second connecting pipe 10 includes a second Y-shaped tube 110, which is provided with a second input port 111, a third input port 112, and a third output port 113. The third output port 113 is connected to the synchronous condenser. A sealing structure 5 is installed in the first output port 912, the second output port 913, the second input port 111, and the third input port 112. A pipe opening and closing valve 6 is installed between the first output port 912 and the second input port 111. The multiple connectors of the first Y-shaped tube 910 and the second Y-shaped tube 110 allow workers to install new pipe opening and closing valves 6 first, enabling the cooling device to be put into use as soon as possible. Damaged pipe opening and closing valves 6 can then be removed, saving a significant amount of time, effectively reducing the downtime of the synchronous condenser, improving its working efficiency, and thus enhancing the cooling device's performance.

[0058] refer to Figure 7 The sealing structure 5 includes a positioning sealing ring 501, a limiting mounting ring 502, a pressing elastic element 503, a sliding sealing baffle 504, a coolant flow hole 505, and a pipe sealing column 506. The limiting mounting ring 502 is fixedly installed inside the first output port or the second input port, and the sliding sealing baffle 504 is slidably installed inside the first output port or the second input port. The sliding sealing baffle 504 is elastically connected to the limiting mounting ring 502 through the pressing elastic element 503. The pressing elastic element 503 is a spring. The sliding sealing baffle 504 is provided with several coolant flow holes 505 (see reference). Figure 8The sliding sealing baffle 504 is limited between the limiting mounting ring 502 and the positioning sealing ring 501; the pipe sealing column 506 is fixedly installed on the side of the sliding sealing baffle 504 away from the limiting mounting ring 502; the positioning sealing ring 501 is fixedly installed at the port of the first output port or the port of the second input port, and the pipe sealing column 506 is slidably installed in the positioning sealing ring 501. A circumferential array of coolant flow holes 505 is formed on the outside of the four sliding sealing baffles 504; by pressing down the pipe sealing column 506, the coolant flow holes 505 on the sliding sealing baffle 504 are moved away from the positioning sealing ring 501, allowing the coolant to flow through the coolant flow holes 505 and then through the central circular hole of the positioning sealing ring 501.

[0059] refer to Figure 9 The pipeline opening and closing valve 6 includes a second connecting nut 605, a pipeline 608, and a valve core 609. The valve core 609 is rotatably mounted on the pipeline 608, and second connecting nuts 605 are connected to both ends of the pipeline 608. The two second connecting nuts 605 are threadedly connected to the first output port and the second input port, respectively. The connection of the entire device is achieved by threading the two second connecting nuts 605 to the first output port and the second input port, thereby improving the connection strength.

[0060] In the implementation of this invention, reference is made to Figure 11 A second sealing rubber ring 607 is provided on both sides of the second connecting nut 605. The two second sealing rubber rings 607 contact the pipe 608 and the first outlet or the second inlet to achieve a seal. By setting the second sealing rubber rings 607, a sealed connection is achieved, thereby preventing coolant leakage and improving the sealing effect.

[0061] Preferably, the pipeline opening and closing valve 6 further includes a sliding connecting plate 602, a first reset elastic element 603, and a positioning compression rod 604 (see reference). Figure 10 A guide limiting groove 601 is provided on the outer surface of the pipe 608 near the port, and a sliding connecting plate 602 is slidably installed in the guide limiting groove 601; a first reset elastic element 603 is installed in the guide limiting groove 601, and one end of the first reset elastic element 603 is connected to the guide limiting groove 601, and the other end is connected to the sliding connecting plate 602; a positioning extrusion rod 604 is provided on the side of the sliding connecting plate 602 away from the valve core 609, the positioning extrusion rod 604 is located inside the pipe 608, and the positioning extrusion rod 604 abuts against the pipe sealing column 506.

[0062] In accordance with the embodiments of the present invention, a position limiting groove 606 is provided on the inner side of the second connecting nut 605, and the position limiting groove 606 is engaged with one end of the sliding connecting plate 602 protruding from the pipe 608; by screwing the two second connecting nuts 605, the two second connecting nuts 605 can be moved towards each other or away from each other, thereby facilitating the removal of the pipe opening and closing valve 6 or the opening of the sealing structure 5.

[0063] The specific usage and function of this embodiment: When the pipeline opening and closing valve 6 is damaged, a new pipeline opening and closing valve 6 can be installed on the other connector of the two opposing first connecting pipes 9 and second connecting pipes 10 (i.e., Y-shaped pipes or four-way pipes). During installation, the second connecting nut 605 is rotated. At this time, the inner side of the position limiting groove 606 will push the sliding connecting plate 602 to slide outward along the guide limiting slide groove 601, causing the positioning squeezing rod 604 to move outward. When half of the second connecting nut 605 is screwed onto the first connecting pipe 9 or the second connecting pipe 10, the positioning squeezing rod 604 will push the pipeline sealing column 506 and the sliding sealing baffle 504 out of the positioning sealing ring 501, so that the sliding sealing baffle 504 is close to the limiting installation ring 502. At this time, the coolant can flow through the coolant flow hole 505 and the positioning sealing ring 501 from the pipeline sealing column 506 and the sliding sealing baffle 504. The first connecting pipe 9 flows into the new pipeline opening and closing valve 6, enabling the cooling device to function normally. The second sealing rubber ring 607 seals the connection. At this point, the faulty pipeline opening and closing valve 6 is removed. During removal, the second connecting nut 605 is rotated in the opposite direction, and the sliding connecting plate 602 is no longer limited by the position limiting groove 606. The first reset elastic element 603 will drive the sliding connecting plate 602 and the positioning compression rod 604 to reset. At this time, the clamping elastic element 503 will also push the sliding sealing baffle 504 and the pipeline sealing column 506 to reset. The positioning sealing ring 501 will block the coolant flow hole 505, and the pipeline sealing column 506 will block the positioning sealing ring 501. Under the pressure of the clamping elastic element 503 and the coolant, the sliding sealing baffle 504 will always be tightly fitted with the positioning sealing ring 501 to ensure the sealing effect.

[0064] In this invention, the cooling device further includes a positioning and connecting turntable 8, which is rotatably mounted on a positioning and mounting rod 7, and the positioning and mounting rod 7 is fixedly mounted on the outside of the coolant delivery pipe 4 and the outside of the first connecting pipe 9; at least one pipe connecting cylinder 801 is connected to the positioning and connecting turntable 8, and a filter mechanism is provided in the pipe connecting cylinder 801; both ends of the pipe connecting cylinder 801 are respectively connected to the first inlet of the first connecting pipe (9) and the coolant delivery pipe 4. Specifically, three pipe connecting cylinders 801 are provided, and the three pipe connecting cylinders 801 are fixedly connected in a circumferential array on the outside of the positioning and connecting turntable 8.

[0065] In the above embodiments, another optional implementation is that four pipe connecting cylinders 801 are provided, and the four pipe connecting cylinders 801 are circumferentially arrayed and fixedly connected to the outside of the positioning and connecting turntable 8. The filter screen structure can be replaced by rotating the positioning and connecting turntable 8, which is simple and convenient to operate and effectively ensures the replacement efficiency of the filter structure.

[0066] refer to Figure 3A first connecting nut 401 is rotatably installed at the first inlet and the outlet of the coolant delivery pipe 4, respectively. A first sealing rubber ring 402 is provided on both sides of the first connecting nut 401. The two first connecting nuts 401 are threadedly connected to both ends of the pipe connecting cylinder 801. The connection of the entire device is achieved by the two first connecting nuts 401 being threadedly connected to both ends of the pipe connecting cylinder 801, which improves the connection strength.

[0067] Referring to the embodiments of the present invention, Figure 4 The filtration mechanism includes a fixed filter plate 804, a second reset elastic element 805, and a sliding filter plate 806. The fixed filter plate 804 is fixedly installed inside the pipe connecting cylinder 801. The sliding filter plate 806 is connected to the fixed filter plate 804 through the second reset elastic element 805, and is slidably installed inside the pipe connecting cylinder 801, located on the side of the fixed filter plate 804 closest to the coolant delivery pipe 4. Specifically, the fixed filter plate 804 is fixedly connected to the left side of the pipe connecting cylinder 801; the sliding filter plate 806 is slidably connected to the inner side of the pipe connecting cylinder 801; the sliding filter plate 806 is elastically connected to the fixed filter plate 804 through the second reset elastic element 805. This invention filters impurities in the coolant using the sliding filter plate 806, effectively preventing impurities from adhering to the pipe and causing blockage, ensuring the normal operation of the cooling device, and thus ensuring the cooling effect on the synchronous condenser stator. This prevents the synchronous condenser stator from overheating and burning out due to cooling device failure, and ensures the service life of the synchronous condenser stator.

[0068] refer to Figure 5 The filtration mechanism also includes a sliding indicator block 807. A guide positioning groove 803 is provided inside the pipe connecting cylinder 801. The sliding indicator block 807 is fixedly connected to the outside of the sliding filter plate 806. The sliding indicator block 807 is slidably installed in the guide positioning groove 803, and a position limiting strip 808 is provided in the guide positioning groove 803. A positioning connecting rod 809 is hinged to the inside of the sliding indicator block 807 by a torsion spring. A position limiting pawl 810 is fixedly connected to the outside of the positioning connecting rod 809, and the position limiting pawl 810 engages with the position limiting strip 808. The position limiting pawl 810 and the position limiting strip 808 together form a ratchet transmission mechanism. A transparent observation window 802 is provided in the middle of the outside of the pipe connecting cylinder 801. When debris clogs the sliding filter plate 806, the sliding filter plate 806 moves towards the fixed filter plate 804 under the pressure of the coolant. At this time, the position limiting pawl 810 slides into the middle of the caliper of the next position limiting bar 808 along the curved surface of the position limiting bar 808, overcoming the torsion spring. When it is no longer under the thrust of the coolant, the torsion spring drives the position limiting pawl 810 to engage in the position limiting bar 808.

[0069] The specific usage and function of this embodiment are as follows: When cooling the stator of the synchronous condenser, the pipe opening and closing valve 6 is opened to connect the first connecting pipe 9 and the second connecting pipe 10. The coolant suction pump 2 is started to draw coolant from the coolant storage tank 3 into the coolant delivery pipe 4 and the first connecting pipe 9 and the second connecting pipe 10. At this time, the coolant will flow in the first connecting pipe 9 and the second connecting pipe 10, carrying away the heat on the synchronous condenser stator connected to the output end of the second connecting pipe 10. When the coolant is transferred from the coolant delivery pipe 4 to the first connecting pipe 9, the coolant will pass through the pipe connecting cylinder 801. At this time, the coolant will be filtered by the sliding filter plate 806 and the fixed filter plate 804, thereby intercepting impurities in the coolant. When a lot of impurities accumulate, the pressure on the sliding filter plate 806 will increase. At this time, the sliding filter plate 806 compresses the second reset elastic element 805, causing the sliding indicator block 807 to drive the position limiting pawl 810 to slide along the guide positioning groove 803, thus limiting the position. The bar 808 can lock the position limiting pawl 810 to prevent the sliding filter plate 806 from driving the sliding indicator block 807 to reset. When the sliding indicator block 807 moves to the transparent observation window 802, it indicates that impurities need to be cleaned. At this time, after the synchronous condenser finishes working, the cooling device can be turned off, the first connecting nut 401 can be unscrewed, and the positioning connecting turntable 8 can be rotated along the positioning mounting rod 7 to replace the pipe connecting cylinder 801. After the replacement is completed, the first connecting nut 401 can be screwed back to its original position to complete the connection of the pipe connecting cylinder 801, the coolant delivery pipe 4 and the first connecting pipe 9. The first sealing rubber ring 402 can seal the connection. After the connection is completed, the replaced pipe connecting cylinder 801 can be cleaned. After cleaning, use a tool to rotate the positioning connecting rod 809 to make the position limiting pawl 810 swing. At this time, the position limiting bar 808 no longer contacts the position limiting pawl 810. The second reset elastic element 805 pushes the sliding filter plate 806 and the sliding indicator block 807 to reset for easy use next time.

[0070] Example 2,

[0071] refer to Figure 12In conjunction with Embodiment 1, the first connecting pipe 9 includes a first four-way pipe 920, which has a third input port and three third output ports; the second connecting pipe 10 includes a second four-way pipe 120, which has three fourth input ports and a fourth output port; the first four-way pipe 920 and the second four-way pipe 120 are placed symmetrically, and a pipe opening and closing valve 6 is connected between a pair of opposite third output ports and fourth input ports, and a sealing structure 5 is installed in the third output ports and fourth input ports. Specifically, the fourth input port of the first four-way pipe 920 is connected to the pipe connecting cylinder 801; the fourth output port of the second four-way pipe 120 is connected to the synchronous condenser; and a pipe opening and closing valve 6 is installed between a pair of corresponding third output ports and fourth input ports. The multiple connectors of the first four-way pipe 920 and the second four-way pipe 120 allow workers to install the new pipe opening and closing valve 6 first, so that the cooling device can be put into use as soon as possible. Then, the damaged pipe opening and closing valve 6 can be removed, saving a lot of time, effectively reducing the downtime of the synchronous condenser, improving the working efficiency of the synchronous condenser, and thus improving the effect of the cooling device.

[0072] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stator cooling device for a synchronous modulator, characterized in that, Including coolant suction pump (2), The inlet of the coolant suction pump (2) is connected to the coolant storage tank (3), and the outlet is connected in sequence to the coolant delivery pipe (4), the first connecting pipe (9) and the second connecting pipe (10); and a pipe opening and closing valve (6) is provided between the first connecting pipe (9) and the second connecting pipe (10); The cooling device also includes a positioning mounting rod (7) and a positioning connecting turntable (8). The positioning and connecting turntable (8) is rotatably mounted on the positioning and mounting rod (7). The two ends of the positioning and mounting rod (7) are respectively fixedly mounted on the outer surface of the coolant delivery pipe (4) and the first connecting pipe (9) on the same side. At least one pipe connecting cylinder (801) is connected to the positioning and connecting turntable (8). A filter mechanism is provided inside the pipe connecting cylinder (801). The two ends of the pipe connecting cylinder (801) are respectively connected to the first inlet of the first connecting pipe (9) and the coolant delivery pipe (4).

2. The stator cooling device for a synchronous synchrotron according to claim 1, characterized in that, First connecting nuts (401) are rotatably installed at the first inlet and the outlet of the coolant delivery pipe (4), and the two first connecting nuts (401) are threadedly connected to both ends of the pipe connecting cylinder (801).

3. The stator cooling device for a synchronous synchrotron according to claim 1, characterized in that, The filtration mechanism includes a fixed filter plate (804); The fixed filter plate (804) is fixedly installed inside the pipe connecting cylinder (801); the fixed filter plate (804) is connected to the sliding filter plate (806) through the second reset elastic element (805); the sliding filter plate (806) is slidably installed inside the pipe connecting cylinder (801) and is located on the side of the fixed filter plate (804) near the coolant delivery pipe (4).

4. The stator cooling device for a synchronous synchrotron according to claim 3, characterized in that, The filtering mechanism also includes a sliding indicator block (807) and a positioning connecting rod (809). The inner side of the pipe connecting cylinder (801) is provided with a guide positioning groove (803); the sliding indicator block (807) is fixedly connected to the outer surface of the sliding filter plate (806); the sliding indicator block (807) is slidably installed in the guide positioning groove (803), and a position limiting strip (808) is provided in the guide positioning groove (803); the inner side of the sliding indicator block (807) is hinged to the positioning connecting rod (809) by a torsion spring; a position limiting pawl (810) is fixedly connected to the outer surface of the positioning connecting rod (809), and the position limiting pawl (810) engages with the position limiting strip (808).

5. The stator cooling device for a synchronous synchrotron according to claim 1, characterized in that, The first connecting pipe (9) is provided with a first input port and at least two first output ports; The second connecting pipe (10) is provided with at least two second input ports and a second output port; A sealing structure (5) is installed in both the first output port and the second input port. The first connecting pipe (9) and the second connecting pipe (10) are placed symmetrically, and a pipe opening and closing valve (6) is connected between a pair of opposite first output ports and second input ports. A spare pipe opening and closing valve (6) is connected between the other opposite first output ports and second input ports.

6. The stator cooling device for a synchronous synchrotron according to claim 5, characterized in that, The sealing structure (5) includes a positioning sealing ring (501), a limiting mounting ring (502), a pressing elastic element (503), a sliding sealing baffle (504), a coolant flow hole (505), and a pipe sealing column (506). The limiting mounting ring (502) is fixedly installed inside the first output port or the second input port, and the positioning sealing ring (501) is fixedly installed at the port of the first output port or the port of the second input port, with the limiting mounting ring (502) located on the side of the positioning sealing ring (501) away from the pipeline opening and closing valve (6); the sliding sealing baffle (504) is slidably installed between the limiting mounting ring (502) and the positioning sealing ring (501); the sliding sealing baffle (504) is connected to the limiting mounting ring (502) through a clamping elastic element (503); the sliding sealing baffle (504) is provided with a plurality of coolant flow holes (505); The pipe sealing column (506) is fixedly installed on the side of the sliding sealing baffle (504) away from the limiting installation ring (502), and the positioning sealing ring (501) is sleeved on the outer surface of the pipe sealing column (506).

7. The stator cooling device for a synchronous synchrotron according to claim 5, characterized in that, The pipeline opening and closing valve (6) includes a pipeline (608). A valve core (609) is rotatably mounted on the pipe (608), and second connecting nuts (605) are connected to both ends of the pipe (608). The two second connecting nuts (605) are threadedly connected to the first output port and the second input port, respectively.

8. The stator cooling device for a synchronous synchrotron according to claim 7, characterized in that, The second connecting nut (605) is provided with a second sealing rubber ring (607) at both ends, and the two second sealing rubber rings (607) are sealed to the pipe (608) and the first output port or the second input port.

9. The stator cooling device for a synchronous synchrotron according to claim 7, characterized in that, The pipeline opening and closing valve (6) also includes a sliding connecting plate (602) and a positioning and pressing rod (604). The outer surface of the pipe (608) near the port is provided with a guide limiting groove (601), and a first reset elastic element (603) is provided in the guide limiting groove (601); the sliding connecting plate (602) is slidably installed in the guide limiting groove (601); a positioning squeezing rod (604) is provided on the end of the sliding connecting plate (602) away from the valve core (609); the positioning squeezing rod (604) is located inside the pipe (608) and abuts against the pipe sealing column (506).

10. The stator cooling device for a synchronous synchrotron according to claim 9, characterized in that, The sliding connecting plate (602) protrudes from the pipe (608) and is engaged in the position limiting groove (606) inside the second connecting nut (605).

Images