A condensate treatment device for thermal power plants

Abstract

This utility model relates to the field of water treatment technology and discloses a condensate treatment device for thermal power plants. It includes a tank body, a first filter structure disposed on one side of the tank body with its inlet connected to a condensate supply pipe, and its outlet located inside or above the tank body. A second filter structure includes an annular filter frame and a filter screen installed inside the filter frame, with the filter screen located below the outlet of the first filter structure. A collection component has a collection trough and is mounted on the filter frame. A scraping structure is mounted on the tank body and located above the collection component. A through hole is pre-drilled on the filter frame, and the scraping structure scrapes impurities on the filter screen to the through hole, allowing the impurities to enter the collection trough through the through hole. This utility model has a simple and compact structure, is easy to operate, and solves the technical problem in the prior art where a horizontally rotating oil collection tank pushes aside floating grease, making it impossible to effectively collect grease and thus preventing the complete removal of grease from the condensate.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a condensate treatment device for thermal power plants. Background Technology

[0002] Currently, in the thermal cycle system of a thermal power plant, steam from the boiler enters the turbine and drives the turbine blades to rotate. After performing work, the steam is discharged from the turbine and enters the condenser to condense into water. The condensate in the condenser is the condensate of the thermal power plant, which is then used as makeup water and recycled back into the boiler. Due to factors such as condenser leakage, corrosion products of the thermal system, and impurities in the makeup water, the condensate of thermal power plants contains a relatively large amount of impurities, such as calcium and magnesium ions and oil deposits. Calcium and magnesium ions in the condensate will form scale in the boiler, leading to a decrease in boiler heat transfer efficiency; oil deposits in the condensate will deposit in the flow channels of the turbine, hindering steam flow and reducing the turbine's operating efficiency. Therefore, the condensate needs to be treated before being added to the boiler.

[0003] Utility model patent CN221544391U discloses a pretreatment device for condensate polishing in thermal power plants. The device includes a housing and a horizontal plate on top of the housing. Height adjustment mechanisms are located on both sides of the horizontal plate, a suction mechanism is located at the top of the plate, and an oil scraping mechanism is located at the bottom of the plate. The oil scraping mechanism includes a rotating shaft and an oil collection tank. The rotating shaft extends downwards through the top cover, and the oil collection tank is horizontally fixed to the bottom end of the rotating shaft. In use, the rotating shaft drives the oil collection tank to rotate horizontally to collect grease from the surface of the condensate. However, because the grease floats on the surface, the horizontally rotating oil collection tank pushes away the floating grease during the operation of the oil scraping mechanism, making effective collection impossible and resulting in incomplete removal of grease from the condensate. Utility Model Content

[0004] The technical problem this invention aims to solve is that in the prior art, the horizontally rotating oil collection tank pushes away the floating grease, making it impossible to effectively collect the grease, thus preventing the complete removal of grease from the condensate.

[0005] To solve the above-mentioned technical problems, this utility model provides a condensate treatment device for thermal power plants, comprising:

[0006] Barrel body;

[0007] The first filter structure is located on one side of the barrel. The inlet of the first filter structure is connected to the condensate supply pipe, and the outlet of the first filter structure is located inside the barrel or above the barrel.

[0008] The second filtration structure includes an annular filter frame and a filter screen installed inside the filter frame. The filter frame is connected to the barrel body, and the filter screen is located below the outlet of the first filtration structure.

[0009] The collector has a collection trough and is mounted on the filter frame;

[0010] The scraping structure is installed on the barrel and is located above the collecting component.

[0011] The filter frame has pre-drilled through holes that connect to the collection tank. The scraping structure scrapes up the impurities on the filter screen and moves them to the through holes, allowing the impurities to pass through the through holes and enter the collection tank.

[0012] Preferably, a mounting frame is provided on the barrel body, and a movable part is vertically slidably mounted on the mounting frame;

[0013] The mounting bracket is also equipped with a first driving component, which is connected to the moving component. The first driving component is used to drive the moving component to move up and down.

[0014] The scraping structure is mounted on the moving part.

[0015] Preferably, the mounting frame includes a horizontal bar and two vertically opposite vertical bars, the horizontal bar being disposed at the top of the vertical bars, and both vertical bars being fixedly connected to the horizontal bar;

[0016] A vertically extending groove is provided on one side of the two vertical rods that are close to each other, and a vertically arranged slide rail is provided in the groove;

[0017] The moving parts are slidably mounted on the slide rail.

[0018] Preferably, the movable component includes a horizontal plate and two vertically opposite vertical plates, the vertical plates being horizontally spaced apart on the inner side of the vertical rod, the horizontal plate being disposed on the top of the vertical plates, and both vertical plates being fixedly connected to the horizontal plate.

[0019] The horizontal plate has sliders at both ends, and the sliders have grooves. The sliders slide on the slide rail.

[0020] The first driving component is mounted on the crossbar and is connected to the cross plate.

[0021] Preferably, a plug-in block is provided at the bottom of the vertical rod, and the plug-in block is provided with a first mounting hole and a first insertion hole;

[0022] A connecting block is provided on the outer periphery of the barrel. The connecting block has an installation groove for inserting the plug. The installation groove extends horizontally along the direction of the vertical crossbar. Openings are provided at both ends of the installation groove. Second installation holes corresponding to the first installation holes are provided on both sides of the installation groove. A rotating shaft is provided in the first installation hole. Both ends of the rotating shaft are rotatably installed in the second installation holes. The plug is connected to the rotating shaft to prevent rotation.

[0023] A second socket matching the first socket is provided on the connecting block on one side of the mounting slot. The second socket is located on the side away from the barrel. A plug rod with a polygonal cross-section is provided in the second socket. Both the first socket and the second socket match the cross-section of the plug rod. The plug rod can be detachably inserted into both the first socket and the second socket.

[0024] Preferably, the scraping structure includes a rotating rod and a second driving member, the second driving member being disposed on the moving member;

[0025] One end of the rotating rod is rotatably connected to the moving part, and the other end of the rotating rod is connected to the second driving part. A scraper is provided on the rotating rod.

[0026] The second driving component drives the rotating rod to rotate, thereby causing the scraper to rotate in a vertical plane to scrape away impurities on the filter screen.

[0027] Preferably, two arc-shaped fasteners are provided on the inner side of the barrel opening of the barrel body, and an overlapping plate is provided at the edge of each fastener. The overlapping plate overlaps the edge of the barrel opening of the barrel body, and the ends of the two fasteners abut to form a ring. Each fastener has an arc-shaped first groove matching its shape on its top.

[0028] The collecting component is positioned within the first groove;

[0029] The filter frame can be detachably and fixedly installed on the side walls where the fasteners are close to each other.

[0030] Preferably, there are two collectors, each collector is arc-shaped, and the top of the collector is provided with an arc-shaped second groove that matches its shape. The second groove is fitted into the first groove, and the two second grooves form a collection groove.

[0031] The two fasteners have protrusions on their side walls that are close to each other. The filter frame is set on the protrusions and the filter screen is located above the collection tank.

[0032] Preferably, the first filtration structure includes a filter box fixedly installed on the outer periphery of the barrel, and multiple vertically arranged filter plates are detachably installed inside the filter box, with the multiple filter plates spaced apart along the direction perpendicular to the filter plates.

[0033] The filter box is equipped with an outlet pipe and an inlet pipe, which are located on both sides of the filter plate.

[0034] Preferably, a fixed frame is fixedly installed inside the barrel, a third driving component is provided on the fixed frame, a stirring blade is installed on the output shaft of the third driving component, and the third driving component drives the stirring blade to rotate in the horizontal plane.

[0035] Compared with the prior art, the condensate treatment device for thermal power plants according to this utility model has the following advantages:

[0036] This utility model discloses a condensate treatment device for a thermal power plant. It filters condensate input to the device by incorporating a first and second filter structure on a tank. The condensate first passes through the first filter structure to remove larger impurities, and then passes through the second filter structure to filter out oil and other impurities. A collection element is installed on the filter frame of the second filter structure, and a scraping structure inside the tank is positioned above the collection element. This scraping structure removes impurities from the filter screen in the second filter structure and sends them into the collection tank, thus completing the removal of impurities from the filter screen. After the condensate enters the tank through the filter screen, the grease and larger impurities are completely removed. However, calcium and magnesium ions remain. By adding chemicals to the condensate to initiate a reaction, condensate that meets the requirements is finally produced and used as makeup water to feed into the boiler.

[0037] This embodiment of the invention uses a second filtration structure to first filter and intercept oily substances in the condensate, and then uses a scraping structure and a collection component to clean and collect the oily substances, thus avoiding the situation where the oily substances are located on the water surface, causing the collection device to push away the grease when collecting the oily substances.

[0038] The present invention has a simple and compact structure, is easy to operate, and can effectively remove impurities from condensate. It solves the technical problem in the prior art that the horizontally rotating oil collection tank pushes away floating grease, making it impossible to effectively collect grease and thus making it impossible to completely remove grease from condensate. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0040] Figure 2 This is a three-dimensional structural diagram of the uninstalled collection component according to an embodiment of this utility model;

[0041] Figure 3 This is an embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle;

[0042] Figure 4 This is an embodiment of the present utility model. Figure 2 Enlarged view at point B in the middle;

[0043] Figure 5 This is a front view of an embodiment of the present utility model;

[0044] Figure 6 This is a side view of an embodiment of the present utility model;

[0045] Figure 7 This is a diagram of the internal stirring structure of an embodiment of this utility model;

[0046] Figure 8This is a schematic diagram of the fixing component and the collecting component according to an embodiment of the present utility model;

[0047] Figure 9 This is a schematic diagram of the fixing component, the collecting component, and the second filter structure according to an embodiment of the present utility model.

[0048] In the diagram: 1. Barrel body; 2. First filtration structure; 21. Filter box; 22. Outlet pipe; 23. Inlet pipe; 24. Filter plate; 25. Fixing base; 251. Connecting plate; 252. Base; 3. Second filtration structure; 31. Filter frame; 32. Filter screen; 33. Through hole; 34. Guide plate; 4. Collecting component; 41. Collecting trough; 42. Second overlapping plate; 43. Second groove; 5. Scraping structure; 51. Rotating rod; 52. Second driving component; 53. Scraper; 6. Mounting bracket; 61. Crossbar 62. Vertical rod; 621. Vertical groove; 622. Slide rail; 63. Insertion block; 64. Rotating shaft; 7. Moving part; 71. Horizontal plate; 72. Vertical plate; 73. Sliding block; 8. First driving component; 9. Connecting block; 91. Mounting groove; 10. Insert rod; 11. Fixing component; 111. First groove; 112. Boss; 113. Overlap plate; 12. Medicine storage box; 13. Medicine inlet; 14. Medicine delivery pipe; 15. Valve; 16. Fixing frame; 17. Third driving component; 18. Stirring blade; 19. Stop block. Detailed Implementation

[0049] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0050] In the description of this utility model, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "bottom", "inner", "outer" and other terms used in this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0051] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be called "second" information, and similarly, "second" information can also be called "first" information.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] like Figures 1 to 9 As shown, a preferred embodiment of the present invention provides a condensate treatment device for a thermal power plant, comprising a tank body 1, a first filter structure 2, a second filter structure 3, a collection component 4, and a scraping structure 5. The first filter structure 2 is located on one side of the barrel 1. The inlet of the first filter structure 2 is connected to the condensate supply pipe, and the outlet of the first filter structure 2 is located inside or above the barrel 1. The second filter structure 3 includes an annular filter frame 31 and a filter screen 32 installed inside the filter frame 31. The filter frame 31 is connected to the barrel 1, and the filter screen 32 is located below the outlet of the first filter structure 2. The collection component 4 has a collection trough 41 and is installed on the filter frame 31. The scraping structure 5 is installed on the barrel 1 and is located above the collection component 4. The filter frame 31 has a through hole 33, which is connected to the collection trough 41. The scraping structure 5 scrapes the impurities on the filter screen 32 and moves them to the through hole 33, allowing the impurities to pass through the through hole 33 and enter the collection trough 41.

[0054] This utility model discloses a condensate treatment device for a thermal power plant. It filters condensate input to the device by installing a first filter structure 2 and a second filter structure 3 on the tank body. The condensate first passes through the first filter structure 2 for preliminary filtration to remove larger impurities. Then, it passes through the second filter structure 3 to filter and intercept oil or other impurities. A collection element 4 is installed on the filter frame 31 of the second filter structure 3. A scraping structure 5 is located above the collection element 4 inside the tank body. The scraping structure 5 scrapes away impurities from the filter screen 32 in the second filter structure 3 and sends the impurities into the collection tank 41, thus completing the removal of impurities from the filter screen 32. After the condensate enters the tank body 1 through the filter screen 32, the grease and larger impurities in the condensate are completely removed. However, calcium and magnesium ions remain in the condensate. By adding chemicals to the condensate to initiate a reaction, condensate that meets the requirements is finally produced and used as makeup water to feed into the boiler.

[0055] In this embodiment of the invention, the second filter structure 3 first filters and intercepts oily substances in the condensate, and then the scraping structure 5 and the collecting component 4 clean and collect the oily substances, thus avoiding the situation where the oily substances are located on the water surface and the collecting device pushes away the grease when collecting the oily substances.

[0056] The present invention has a simple and compact structure, is easy to operate, and can effectively remove impurities from condensate. It solves the technical problem in the prior art that the horizontally rotating oil collection tank pushes away floating grease, making it impossible to effectively collect grease and thus making it impossible to completely remove grease from condensate.

[0057] Furthermore, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 The barrel body 1 is provided with a mounting frame 6, on which a movable component 7 is vertically slidably mounted. A first driving component 8 is also provided on the mounting frame 6, connected to the movable component 7. The first driving component 8 is used to drive the movable component 7 to move up and down. The scraping structure 5 is mounted on the movable component 7. Specifically, the mounting frame 6 includes a horizontal bar 61 and two vertically opposite vertical bars 62. The horizontal bar 61 is located at the top of the vertical bars 62, and both vertical bars 62 are fixedly connected to the horizontal bar 61. In this embodiment of the invention, the horizontal bar 61 is arranged horizontally, the first driving component 8 is fixedly mounted on the horizontal bar 61, and the output axis of the first driving component 8 extends downward through the horizontal bar 61 and connects to the movable component 7.

[0058] Furthermore, such as Figure 2 and Figure 5 As shown, a vertically extending groove 621 is provided on one side of the two vertical rods 62 that are close to each other. A vertically arranged slide rail 622 is provided in the groove 621, and the moving part 7 is slidably installed on the slide rail 622. The moving part 7 includes a horizontal plate 71 and two vertically opposite vertical plates 72. The vertical plates 72 are horizontally spaced inside the vertical rods 62, and the horizontal plate 71 is horizontally positioned on top of the vertical plates 72. Both vertical plates 72 are fixedly connected to the horizontal plate 71. Slider blocks 73 are provided at both ends of the horizontal plate 71, and the sliders 73 are provided with grooves. The sliders 73 are slidably fitted onto the slide rail 622, and the first driving part 8 is connected to the horizontal plate 71. The first driving member 8 drives the connecting member to move vertically, so that the scraping structure 5 set on the moving member 7 moves closer to or further away from the second filter structure 3. By adjusting the vertical of the scraping structure 5, on the one hand, the scraping structure 5 can better cooperate with the filter screen 32 of the second filter structure 3 to improve the scraping effect. On the other hand, when scraping is not required, the scraping structure 5 can be moved away from the barrel opening to provide sufficient working space.

[0059] Furthermore, such as Figure 5As shown, the scraping structure 5 includes a rotating rod 51 and a second driving member 52. The second driving member 52 is mounted on the moving member 7. One end of the rotating rod 51 is rotatably connected to the moving member 7, and the other end of the rotating rod 51 is connected to the second driving member 52. A scraper 53 is mounted on the rotating rod 51. In this embodiment of the invention, the rotating rod 51 is positioned between two vertical plates 72. The second driving member 52 is positioned on the side of the vertical plate 72 closest to the vertical rod 62. The output shaft of the second driving member 52 passes through the vertical plate 72 and is fixedly connected to one end of the rotating rod 51. The other end of the rotating rod 51 is rotatably connected to the vertical plate 72 via a bearing. Two scraper blades 53 are mounted on the rotating rod 51. The two scraper blades 53 are positioned opposite each other on the outer periphery of the rotating rod 51. One end of each scraper blade 53 is vertically fixed to the outer periphery of the rotating rod 51, and the end of each scraper blade 53 away from the rotating rod 51 has an arc-shaped edge. The second driving component 52 drives the rotating rod 51 to rotate, thereby causing the scraper 53 to rotate in the vertical plane to scrape off impurities on the filter screen 32.

[0060] Furthermore, such as Figures 1 to 3 As shown, in order to ensure sufficient working space in the barrel opening area when the scraping structure 5 is not in operation, a plug-in block 63 is provided at the bottom of the vertical bar 62. The plug-in block 63 is provided with a first mounting hole and a first insertion hole. A connecting block 9 is provided on the outer periphery of the barrel body 1. The connecting block 9 has a mounting groove 91 for the plug-in block 63 to be inserted. The mounting groove 91 extends horizontally along the direction of the vertical bar 61. Openings are provided at both ends of the mounting groove 91. Second mounting holes corresponding to the first mounting holes are provided on both sides of the mounting groove 91. A rotating shaft 64 is provided in the first mounting hole. The two ends of the rotating shaft 64 are rotatably installed in the second mounting holes. The plug-in block 63 is connected to the rotating shaft 64 to prevent rotation.

[0061] A second socket matching the first socket is provided on the connecting block 9 on one side of the mounting slot 91. The second socket is located on the side away from the barrel 1. A plug rod 10 with a polygonal cross-section is provided in the second socket. Both the first socket and the second socket match the cross-section of the plug rod 10. The plug rod 10 can be detachably inserted into the first socket and the second socket at the same time.

[0062] When the insertion rod 10 is simultaneously inserted into the first and second insertion holes, the edges of the polygonal-section insertion rod 10 are restricted by the polygonal first and second insertion holes, preventing the mounting bracket 6 from rotating relative to the barrel 1 and providing reliable fixing conditions for the normal operation of the scraping structure 5. When the insertion rod 10 is pulled out from the first and second insertion holes, the mounting bracket 6 can rotate horizontally in the direction of the vertical crossbar 61, thereby moving away from the barrel opening area and providing sufficient working space for replacing the collection part 4 or other operations. Furthermore, in order to prevent the mounting bracket 6 from rotating too much and causing damage to the components on the mounting bracket 6, a stop block 19 is provided on one side of the connecting block 9, and the stop block is located at the opening of the mounting groove 91.

[0063] Furthermore, such as Figure 1 , Figure 2 , Figure 8 and Figure 9 As shown, two arc-shaped fasteners 11 are provided on the inner side of the opening of the barrel body 1. Each fastener 11 has an overlapping plate 113 at its edge, which overlaps the edge of the opening of the barrel body 1. The ends of the two fasteners 11 abut to form a ring. Each fastener 11 has an arc-shaped first groove 111 at its top that matches its shape. The collecting component 4 is disposed in the first groove 111. In this embodiment of the present invention, the barrel body 1 is cylindrical, and the two arc-shaped fasteners 11 are provided on the inner side of its opening. The outer diameter of the ring formed by the abutting ends of the two fasteners 11 is slightly larger than the inner diameter of the opening. The two fasteners 11 are interference-fitted to the barrel body 1 so that the outer wall of the fastener 11 abuts against the inner wall of the barrel. The friction between the two fasteners is used to fix the fasteners 11. At the same time, an overlapping plate 113 is also provided on the outer periphery of the fastener 11, which overlaps the edge of the opening of the barrel, further improving the stability of the fasteners 11 on the barrel body 1. It should be noted that the fastener 11 can be fixed by either an interference fit between the fastener 11 and the barrel body 1 or by using an overlapping plate 113 to overlap the edge of the barrel opening. In other embodiments of this utility model, both methods can be used simultaneously or one of them can be used.

[0064] In this embodiment of the utility model, there are two collecting components 4, each of which is arc-shaped. The top of the collecting component 4 is provided with an arc-shaped second groove 43 that matches its shape. The second groove 43 is installed in the first groove 111. The two second grooves 43 form a collecting groove 41. In order to further improve the stability of the collecting component 4, the outer and inner circumferences of the collecting component 4 are provided with second overlapping plates 42. The second overlapping plates 42 overlap the top of the side wall of the fixing component 11.

[0065] Furthermore, such as Figure 1 , Figure 2 and Figure 9 As shown, the second filter structure 3 includes an annular filter frame 31 and a filter screen 32 installed inside the filter frame 31. The filter frame 31 is detachably and fixedly installed on the side walls of the fixing member 11 that are close to each other. In this embodiment of the present invention, the filter frame 31 is a vertically arranged annular plate, the filter screen 32 is fixedly installed on the inner side of the annular plate, and the filter screen 32 is located above the collection tank 41. A downwardly inclined guide plate 34 is provided on the top of the outer periphery of the annular plate. The side of the guide plate 34 away from the annular plate extends to the top of the collection tank 41. A through hole 33 is provided on the outer periphery of the annular plate. The through hole 33 passes through both the annular plate and the guide plate 34, and the through hole 33 is located above the filter screen 32. The scraping structure 5 scrapes the impurities on the filter screen 32 and moves them to the through hole 33, allowing the impurities to pass through the through hole 33 and enter the collection tank 41.

[0066] Furthermore, such as Figure 9As shown, in order to achieve the fixed installation of the second filter structure 3, protrusions 112 are provided on the side walls of the two fasteners 11 that are close to each other. The annular plate of the second filter structure 3 is inserted into the annulus formed by the two fasteners 11 and abuts against the protrusions 112 on the inner wall of the annulus.

[0067] Furthermore, such as Figure 1 , Figure 2 , Figures 4 to 6 As shown, the first filter structure 2 includes a filter box 21 fixedly installed on the outer periphery of the barrel 1. Multiple vertically arranged filter plates 24 are detachably installed inside the filter box 21, and the filter plates 24 are spaced apart along the direction perpendicular to the filter plates 24. A water outlet pipe 22 and a water inlet pipe 23 are provided on the filter box 21, respectively located on both sides of the filter plates 24. In this embodiment of the invention, the filter box 21 is a cuboid box. A fixing seat 25 is provided on the side of the filter box 21 closest to the barrel 1. The fixing seat 25 includes a connecting plate 251, one side of which is fixedly connected to the filter box 21. A base 252 is provided on the side of the connecting plate 251 away from the filter box 21, and the base 252 is fixedly connected to the barrel 1 by rivets. The water inlet pipe 23 is located on the side of the filter box 21 away from the barrel 1, and the water outlet pipe 22 is located on the opposite side of the water inlet pipe 23.

[0068] Furthermore, in this embodiment of the invention, there are four filter plates 24, each arranged perpendicular to the water flow direction. Each filter plate 24 includes a support frame, which is a rectangular frame. A first filter screen is provided on one side of the rectangular frame, and a second filter screen is provided on the other side of the rectangular frame. The second filter screen is arranged opposite to the first filter screen. The filter hole size of the second filter screen is smaller than that of the first filter screen. Condensate flows through the first filter screen and the second filter screen in sequence. The first filter screen is made of stainless steel wire mesh to intercept larger particles of impurities, and the second filter screen is made of PTFE membrane to filter small particles in the condensate. Each filter plate 24 performs double-layer filtration, which greatly reduces impurities in the condensate and has a better preliminary treatment effect. To facilitate the replacement of the filter plates 24, a fixing block 26 is provided in the filter box 21. The fixing block 26 is provided with a slot for the rectangular frame to be inserted vertically. Each filter plate 24 is inserted and fixed in the slot, realizing the detachable installation of the filter plates 24.

[0069] Furthermore, in order to remove calcium and magnesium ions from the condensate, the condensate entering the tank 1 needs to be treated with chemicals for flocculation and sedimentation. In this embodiment of the present invention, a chemical storage tank 12 is provided on the outer periphery of the tank 1. The chemical storage tank 12 is located below the filter box 21. The chemical storage tank 12 is fixedly connected to the tank 1 by a fixing seat 25. Two chemical inlets 13 are provided on the top of the chemical storage tank 12. A chemical delivery pipe 14 is provided on the side of the chemical storage tank 12 near the tank 1. The chemical delivery pipe 14 extends into the tank 1 and communicates with the inside of the tank 1. A valve 15 is provided on the chemical delivery pipe 14.

[0070] Furthermore, to ensure a thorough reaction between the added drug and impurities in the condensate, a fixed frame 16 is fixedly installed inside the barrel 1. A third drive component 17 is mounted on the fixed frame 16, and a stirring blade 18 is mounted on the output shaft of the third drive component 17. The third drive component 17 drives the stirring blade 18 to rotate in a horizontal plane. In this embodiment of the invention, the fixed frame 16 is a horizontally arranged circular frame. The side of the fixed frame 16 is fixedly connected to the side wall of the barrel 1. Multiple openings are provided in the plane of the fixed frame 16. The third drive component 17 is fixedly installed on the upper surface of the fixed frame 16. The output shaft of the third drive component 17 extends downward and passes through the fixed frame 16. The stirring blade 18 is fixedly installed on the output shaft. After the third drive component 17 is activated, it drives the stirring blade 18 to rotate in a horizontal plane, thereby achieving a uniform stirring effect on the drug and condensate.

[0071] The working process of this utility model is as follows: the condensate to be treated enters the filter box 21 through the inlet pipe 23, and the water flows out through the outlet pipe 22 after passing through multiple filter plates 24 in sequence. Then it flows through the filter screen 32 and enters the tank 1. The medicine in the medicine storage tank 12 is then fed into the tank 1 through the medicine delivery pipe 14. The third drive unit 17 is started to drive the stirring blade 18 to rotate, so that the medicine and condensate are stirred evenly, so that the impurities in the condensate are flocculated and precipitated. The treated water is then fed into the boiler as makeup water.

[0072] When a large number of impurities are intercepted on the filter screen 32, the first driving component 8 is activated to drive the moving component 7 to move downward along the slide rail 622 and approach the filter screen 32. When the edge of the scraper 53 of the scraping structure 5 contacts the filter screen 32, the second driving component 52 is activated. The second driving component 52 drives the rotating rod 51 to rotate, so that the scraper 53 rotates in the vertical plane. The scraper 53 scrapes the impurities and moves them to the through hole 33. The impurities pass through the through hole 33 by inertia and flow into the collection tank 41 along the guide plate 34, thereby completing the removal of impurities on the filter screen 32.

[0073] In summary, this utility model embodiment provides a condensate treatment device for thermal power plants. By setting a first filter structure 2 and a second filter structure 3 on the tank body 1, the condensate input to the thermal power plant condensate treatment device is filtered. The condensate first passes through the first filter structure 2 for preliminary filtration to remove larger impurities. Then, the condensate passes through the second filter structure 3 to filter and intercept oil or other impurities. A collection element 4 is provided on the filter frame 31 of the second filter structure 3. A scraping structure 5 inside the tank body is positioned above the collection element 4. The scraping structure 5 scrapes away impurities on the filter screen 32 in the second filter structure 3 and sends the impurities into the collection tank 41, thus completing the removal of impurities from the filter screen 32. After the condensate enters the tank body 1 through the filter screen 32, the grease and larger impurities in the condensate are completely removed. However, calcium and magnesium ions in the condensate still remain. By adding chemicals to the condensate to initiate a reaction, condensate that meets the requirements is finally produced and used as makeup water to be input into the boiler.

[0074] In this embodiment of the invention, the second filter structure 3 first filters and intercepts oily substances in the condensate, and then the scraping structure 5 and the collecting component 4 clean and collect the oily substances, thus avoiding the situation where the oily substances are located on the water surface and the collecting device pushes away the grease when collecting the oily substances.

[0075] In this embodiment of the present invention, the filter plate 24, the second filter structure 3, and the collection component 4 are all detachably connected. When the above components malfunction, they can be quickly replaced, making the operation convenient and quick. Components can also be replaced according to work requirements, which improves the applicability of this embodiment of the present invention.

[0076] The present invention has a simple and compact structure, is easy to operate, and can effectively remove impurities from condensate. It solves the technical problem in the prior art that the horizontally rotating oil collection tank pushes away floating grease, making it impossible to effectively collect grease and thus making it impossible to completely remove grease from condensate.

[0077] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A condensate treatment device for a thermal power plant, characterized in that, include: Barrel body (1); The first filter structure (2) is located on one side of the barrel (1). The inlet of the first filter structure (2) is connected to the condensate water supply pipe, and the outlet of the first filter structure (2) is located inside the barrel (1) or above the barrel (1). The second filter structure (3) includes an annular filter frame (31) and a filter screen (32) installed inside the filter frame (31). The filter frame (31) is connected to the barrel (1), and the filter screen (32) is located below the outlet of the first filter structure (2). A collection element (4) having a collection groove (41) is mounted on the filter frame (31); A scraping structure (5) is installed on the barrel (1) and is located above the collecting member (4); The filter frame (31) has a through hole (33) that is connected to the collection tank (41). The scraping structure (5) scrapes the impurities on the filter screen (32) and moves them to the through hole (33), so that the impurities pass through the through hole (33) and enter the collection tank (41).

2. The condensate treatment device for thermal power plants according to claim 1, characterized in that, The barrel (1) is provided with a mounting frame (6), and a movable part (7) is vertically slidably mounted on the mounting frame (6); The mounting bracket (6) is also provided with a first driving member (8), which is connected to the moving member (7). The first driving member (8) is used to drive the moving member (7) to move up and down. The scraping structure (5) is mounted on the movable part (7).

3. The condensate treatment device for thermal power plants according to claim 2, characterized in that, The mounting bracket (6) includes a horizontal bar (61) and two vertically opposite vertical bars (62). The horizontal bar (61) is located at the top of the vertical bars (62), and both vertical bars (62) are fixedly connected to the horizontal bar (61). A vertically extending groove (621) is provided on one side of the two vertical rods (62) that are close to each other, and a vertically arranged slide rail (622) is provided in the groove (621); The movable component (7) is slidably mounted on the slide rail (622).

4. The condensate treatment device for thermal power plants according to claim 3, characterized in that, The movable component (7) includes a horizontal plate (71) and two vertically opposite vertical plates (72). The vertical plates (72) are horizontally spaced on the inner side of the vertical rod (62), and the horizontal plate (71) is disposed on the top of the vertical plate (72). Both vertical plates (72) are fixedly connected to the horizontal plate (71). The horizontal plate (71) is provided with sliders (73) at both ends, and the sliders (73) are provided with grooves. The sliders (73) are slidably fitted on the slide rail (622). The first driving member (8) is disposed on the crossbar (61) and is connected to the cross plate (71).

5. The condensate treatment device for thermal power plants according to claim 3, characterized in that, The bottom of the vertical rod (62) is provided with a plug-in block (63), and the plug-in block (63) is provided with a first mounting hole and a first insertion hole; A connecting block (9) is provided on the outer periphery of the barrel body (1). The connecting block (9) has an installation groove (91) for the insertion block (63) to be inserted. The installation groove (91) extends horizontally along the direction perpendicular to the crossbar (61). Openings are provided at both ends of the installation groove (91). Second installation holes corresponding to the first installation holes are provided on both sides of the installation groove (91). A rotating shaft (64) is provided in the first installation hole. Both ends of the rotating shaft (64) are rotatably installed in the second installation hole. The insertion block (63) is anti-rotationally connected to the rotating shaft (64). A second socket matching the first socket is provided on the connecting block (9) on one side of the mounting groove (91). The second socket is located on the side away from the barrel (1). A plug rod (10) with a polygonal cross-section is provided in the second socket. Both the first socket and the second socket are matched with the cross-section of the plug rod (10). The plug rod (10) can be detachably inserted into both the first socket and the second socket.

6. The condensate treatment device for thermal power plants according to claim 2, characterized in that, The scraping structure (5) includes a rotating rod (51) and a second driving member (52), the second driving member (52) being disposed on the moving member (7); One end of the rotating rod (51) is rotatably connected to the moving part (7), and the other end of the rotating rod (51) is connected to the second driving part (52). A scraper (53) is provided on the rotating rod (51). The second driving member (52) drives the rotating rod (51) to rotate, thereby causing the scraper (53) to rotate in the vertical plane to scrape off impurities on the filter screen (32).

7. The condensate treatment device for thermal power plants according to claim 1, characterized in that, Two arc-shaped fasteners (11) are provided on the inner side of the barrel opening of the barrel body (1). Each fastener (11) has an overlapping plate (113) at its edge. The overlapping plate (113) overlaps the edge of the barrel opening of the barrel body (1). The ends of the two fasteners (11) abut to form a ring. Each fastener (11) has an arc-shaped first groove (111) matching its shape at its top. The collecting element (4) is disposed in the first groove (111); The filter frame (31) can be detachably and fixedly installed on the side walls of the fixing member (11) that are close to each other.

8. The condensate treatment device for thermal power plants according to claim 7, characterized in that, There are two collection components (4), each collection component (4) is arc-shaped, and the top of the collection component (4) is provided with an arc-shaped second groove (43) that matches its shape. The second groove (43) is matched and installed in the first groove (111). The two second grooves (43) form the collection groove (41). The two fasteners (11) are provided with protrusions (112) on their sidewalls that are close to each other. The filter frame (31) is provided on the protrusions (112), and the filter screen (32) is located above the collection groove (41).

9. The condensate treatment device for thermal power plants according to claim 1, characterized in that, The first filter structure (2) includes a filter box (21) fixedly installed on the outer periphery of the barrel (1). Multiple vertically arranged filter plates (24) are detachably installed inside the filter box (21). The multiple filter plates (24) are arranged at intervals along the direction perpendicular to the filter plates (24). The filter box (21) is provided with an outlet pipe (22) and an inlet pipe (23), which are respectively located on both sides of the filter plate (24).

10. The condensate treatment device for thermal power plants according to claim 1, characterized in that, A fixed frame (16) is fixedly installed inside the barrel (1). A third driving component (17) is provided on the fixed frame (16). A stirring blade (18) is installed on the output shaft of the third driving component (17). The third driving component (17) drives the stirring blade (18) to rotate in the horizontal plane.

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