A generator stator cooling water purifying device
Patent Information
- Application Number
- CN202522519292.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-11-27
AI Technical Summary
[0004]但是，现有的发电机定子冷却水净化装置中，药剂与冷却水之间的混合效果有限，无法保证冷却水获得均匀的酸碱度调节效果
[0015](1)本实用新型所述的一种发电机定子冷却水净化装置，其进液接管和加药接管的轴线均与过滤网筒的径线相垂直，且进液接管和加药接管呈中心对称的布置在过滤网筒轴线的两侧。在进行使用时，工作人员可通过进液接管和加药接管分别将冷却水和酸碱度调节药剂注入混合空腔内部，此时冷却水和酸碱度调节药剂会在混合空腔中形成旋流，从而提高冷却水与酸碱度调节药剂的混合效果。其次，本装置在壳体内部设有混合组件，当冷却水和酸碱度调节药剂的混合物穿过过滤网筒后，混合组件中的阻挡盘能对混合物的流动进行阻碍，进一步提高混合物的流动混乱程度，提高冷却水和酸碱度调节药剂混合均匀度。此外，本装置设有反洗支管和排污接管，因此工作人员可定期沿反洗支管向本装置中注入清洁水，并通过排污接管排出装置内部存积的细小固形物，降低本装置的清洁维护难度。
Smart Images
Figure CN224812352U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of generator cooling technology, and in particular relates to a generator stator cooling water purification device. Background Technology
[0002] Generator stator cooling water is a heat exchange medium used to cool the stator windings of large generators. During operation, the generator stator cooling water flows through the hollow copper conductors inside the stator in a closed-loop circulation system, thereby carrying away the heat generated during generator operation and preventing insulation aging and copper wire overheating in the stator windings.
[0003] During the circulation of generator stator cooling water, it is necessary to filter and purify the water to remove copper shavings and solids. Simultaneously, chemicals need to be added to the generator stator cooling water to maintain its slightly alkaline state, thereby allowing a dense passivation film to form on the surface of the hollow copper conductors and improving corrosion inhibition.
[0004] However, existing generator stator cooling water purification devices have limited mixing effects between the reagents and the cooling water, failing to guarantee a uniform pH adjustment effect. Furthermore, due to the small particle size of copper shavings mixed in the cooling water, traditional purification devices are prone to clogging during operation, requiring frequent cleaning and maintenance. Utility Model Content
[0005] In view of this, the present invention aims to provide a generator stator cooling water purification device to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A generator stator cooling water purification device includes: a housing, a cover, a filter cylinder, and a mixing assembly; the cover is detachably disposed on the top of the housing, and the filter cylinder is detachably disposed inside the housing, dividing the interior of the housing into a mixing cavity and a purification cavity, with the purification cavity located inside the filter cylinder and the mixing cavity located outside the filter cylinder; the side wall of the housing is provided with a liquid inlet pipe and a chemical dosing pipe, and the bottom surface of the housing is provided with a drain pipe, all of which are connected to the mixing cavity; the cover is provided with a liquid outlet. The system includes a connecting pipe with a backwash branch pipe on the outlet pipe; the axes of the inlet pipe and the dosing pipe are perpendicular to the diameter of the filter cylinder, and the inlet pipe and the dosing pipe are arranged symmetrically on both sides of the filter cylinder axis; the mixing assembly is detachably installed inside the housing, and the mixing assembly includes an isolation plate and a baffle plate, the baffle plate is located above the isolation plate, and the bottom surface of the baffle plate is connected to the top surface of the isolation plate through a connecting piece; the outer diameter of the baffle plate is smaller than the inner diameter of the housing, the outer diameter of the isolation plate is equal to the inner diameter of the housing, and the isolation plate has a guide hole that communicates with the purification cavity.
[0008] Furthermore, the top of the filter cylinder is provided with a splicing connector, which is inserted into the flow guide hole, and the outer diameter of the splicing connector is equal to the inner diameter of the flow guide hole.
[0009] Furthermore, the outer diameter of the filter screen cylinder is larger than the inner diameter of the guide hole, and a sealing ring is provided between the top of the filter screen cylinder and the bottom surface of the isolation disc.
[0010] Furthermore, there are multiple connecting pieces, which are arranged radially around the axis of the filter cylinder, and a flow guiding gap is provided between any two adjacent connecting pieces.
[0011] Furthermore, the generator stator cooling water purification device also includes a filter screen plate, which is detachably disposed between the cover and the housing, and the inner diameter of the mesh of the filter screen plate is smaller than the inner diameter of the mesh of the filter screen cylinder.
[0012] Furthermore, the filter screen plate is provided with locking screw holes, and a locking screw is provided inside the locking screw holes, with the bottom end of the locking screw abutting against the top surface of the blocking disc.
[0013] Furthermore, the top surface of the blocking disc is provided with an abutment groove for accommodating the locking screw, and a guide inner cone surface is provided at the opening of the abutment groove.
[0014] Compared with the prior art, the generator stator cooling water purification device of this utility model has the following advantages:
[0015] (1) The generator stator cooling water purification device of this utility model has inlet pipes and dosing pipes whose axes are perpendicular to the diameter of the filter screen cylinder, and the inlet pipes and dosing pipes are arranged symmetrically on both sides of the filter screen cylinder axis. During use, operators can inject cooling water and pH adjusting agent into the mixing cavity through the inlet pipes and dosing pipes respectively. At this time, the cooling water and pH adjusting agent will form a swirling flow in the mixing cavity, thereby improving the mixing effect of the cooling water and pH adjusting agent. Secondly, the device has a mixing component inside the shell. When the mixture of cooling water and pH adjusting agent passes through the filter screen cylinder, the baffle plate in the mixing component can obstruct the flow of the mixture, further increasing the degree of flow disorder and improving the uniformity of the mixing of cooling water and pH adjusting agent. In addition, the device is equipped with a backwash branch pipe and a drain pipe, so operators can periodically inject clean water into the device along the backwash branch pipe and discharge the fine solids accumulated inside the device through the drain pipe, reducing the difficulty of cleaning and maintaining the device.
[0016] (2) The generator stator cooling water purification device of this utility model has a filter screen plate between the cover and the housing. In use, the filter screen cylinder and the filter screen plate can filter the mixture of cooling water and pH adjusting agent twice in succession, thereby improving the filtration and purification effect of this device. Attached Figure Description
[0017] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0018] Figure 1 This is a schematic diagram of the generator stator cooling water purification device according to an embodiment of the present invention;
[0019] Figure 2 This is an exploded view of the generator stator cooling water purification device described in an embodiment of this utility model;
[0020] Figure 3 This is a cross-sectional view (cut along the axis of the filter screen cylinder) of the generator stator cooling water purification device described in this embodiment of the utility model.
[0021] Figure 4 This is a cross-sectional view (cut along the diameter of the filter screen cylinder) of the generator stator cooling water purification device described in this embodiment of the utility model.
[0022] Figure 5 This is a schematic diagram of the structure of the hybrid component described in an embodiment of the present invention;
[0023] Figure 6This is a schematic diagram of the structure of the filter cylinder described in an embodiment of the present utility model;
[0024] Figure 7 This is a schematic diagram of the structure of the filter screen and locking screw described in an embodiment of the present invention.
[0025] Explanation of reference numerals in the attached figures:
[0026] 1-Shell; 11-Inlet pipe; 12-Dosing pipe; 13-Drain pipe; 2-Cap; 21-Outlet pipe; 22-Backwash branch pipe; 3-Filter screen cylinder; 31-Interlocking pipe; 32-Sealing ring; 41-Isolation plate; 411-Guide hole; 42-Blocking plate; 421-Top groove; 43-Connecting piece; 5-Filter screen plate; 51-Locking screw hole; 6-Locking screw. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.
[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0031] A generator stator cooling water purification device, the structure of which can be made of Figures 1-7 The following is an illustration. In this embodiment, the generator stator cooling water purification device includes: a housing 1, a cover 2, a filter cylinder 3, and a mixing assembly. The cover 2 is detachably mounted on the top of the housing 1. The filter cylinder 3 and the mixing assembly are both detachably mounted inside the housing 1. The filter cylinder 3 divides the interior of the housing 1 into a mixing cavity and a purification cavity, with the purification cavity located inside the filter cylinder 3 and the mixing cavity located outside. During use, the cooling water and the pH adjusting agent will come into contact and mix inside the mixing cavity. The mixture will then pass through the filter cylinder 3 and enter the mixing assembly, ultimately being discharged from this device and sent to subsequent treatment equipment (such as ion exchange equipment or other treatment equipment commonly used for generator stator cooling water treatment).
[0032] To facilitate the entry and exit of cooling water and pH adjustment agents into and out of the device, an inlet pipe 11 and a dosing pipe 12 are provided on the side wall of the casing 1, and an outlet pipe 21 is provided on the cover 2. Figure 4 As shown, both the liquid inlet pipe 11 and the chemical dosing pipe 12 are connected to the mixing cavity. The axes of both the liquid inlet pipe 11 and the chemical dosing pipe 12 are perpendicular to the diameter of the filter cylinder 3, and they are arranged symmetrically on both sides of the axis of the filter cylinder 3. During use, operators can inject cooling water and pH adjusting agent into the mixing cavity through the liquid inlet pipe 11 and the chemical dosing pipe 12, respectively. Because the axes of the liquid inlet pipe 11 and the chemical dosing pipe 12 are perpendicular to the diameter of the filter cylinder 3, and they are arranged symmetrically on both sides of the axis of the filter cylinder 3, the cooling water and pH adjusting agent will form a swirling flow within the mixing cavity after entering. Compared with common injection methods, this swirling flow improves the mixing effect of the cooling water and pH adjusting agent, ensuring a uniform pH adjustment effect.
[0033] After the cooling water and pH adjusting agent come into contact and mix, the mixture enters the purification cavity through the mesh of the filter cylinder 3. At this point, the mixture undergoes filtration and purification, trapping any solid particles within the mixing cavity. Subsequently, the filtered and purified mixture enters the mixing assembly. Figure 3 and Figure 5As shown, in this embodiment, the mixing assembly includes an isolation plate 41 and a blocking plate 42. The blocking plate 42 is located above the isolation plate 41, and its bottom surface is connected to the top surface of the isolation plate 41 via a connecting piece 43. The outer diameter of the blocking plate 42 is smaller than the inner diameter of the housing 1, while the outer diameter of the isolation plate 41 is equal to the inner diameter of the housing 1. A guide hole 411 communicating with the purification cavity is provided on the isolation plate 41. When the mixture inside the purification cavity enters the mixing assembly along the guide hole 411, the blocking plate 42 obstructs the flow of the mixture. Under the influence of this obstruction, turbulence is formed inside the mixture, thereby further improving the uniformity of mixing between the pH adjusting agent and the cooling water. Next, the mixture flows towards the cap 2 along the gap between the blocking plate 42 and the housing 1, and finally leaves the device along the liquid outlet pipe 21.
[0034] Optionally, to improve the uniform distribution of the mixture after passing through the mixing assembly, multiple connecting pieces 43 can be provided between the baffle plate 42 and the isolation plate 41. These connecting pieces 43 are arranged radially around the axis of the filter cylinder 3, and a flow-guiding gap is provided between any two adjacent connecting pieces 43. When the mixture flows inside the mixing assembly, the radially arranged connecting pieces 43 guide the flow direction of the mixture, causing it to flow radially towards the outer periphery of the baffle plate 42, ensuring that the mixture exits the mixing assembly uniformly along the gap between the baffle plate 42 and the housing 1.
[0035] Because the filter cylinder 3 intercepts solids in the mixture, solids may accumulate inside the mixing cavity after prolonged use. To reduce the difficulty of cleaning and maintaining this device, this embodiment has a drain pipe 13 connected to the mixing cavity on the bottom surface of the housing 1, and a backwash branch pipe 22 on the liquid outlet pipe 21. When cleaning is required, the operator can inject cleaning water into the device through the backwash branch pipe 22. The cleaning water can flush away the solids accumulated inside the device, allowing them to leave the device through the drain pipe 13.
[0036] In addition, to facilitate the replacement of the filter cylinder 3 by staff, this embodiment can also provide an assembly hole for installing the filter cylinder 3 on the bottom surface of the housing 1, and install the filter cylinder 3 into the housing 1 through the assembly hole by means of, for example, a threaded connection. After the device has been used for a long time, the staff can remove the filter cylinder 3 through the assembly hole to thoroughly clean the device, and then install a new filter cylinder 3 into the housing 1 to ensure that the device can be used normally after thorough cleaning.
[0037] Optionally, to improve the assembly reliability between the mixing component and the filter cylinder 3, such as... Figure 5 and Figure 6As shown, the top of the filter cylinder 3 may be provided with a splicing tube 31, and the outer diameter of the splicing tube 31 is equal to the inner diameter of the guide hole 411. During assembly, the operator can first install the filter cylinder 3 into the housing 1, then install the mixing component into the housing 1, insert the splicing tube 31 into the guide hole 411, and finally install the cover 2 to complete the assembly of the device.
[0038] In addition, to prevent the mixture inside the mixing cavity from flowing along the joint between the filter cylinder 3 and the mixing component, the outer diameter of the filter cylinder 3 should be larger than the inner diameter of the guide hole 411, and a sealing ring 32 is provided between the top of the filter cylinder 3 and the bottom surface of the isolation plate 41, so as to seal the joint.
[0039] In practical applications, the solids entrained in the cooling water may have extremely small particle sizes. Therefore, to improve the filtration and purification effect of this device, the generator stator cooling water purification device in this embodiment may also include a filter screen 5. Specifically, the filter screen 5 can be detachably installed between the cover 2 and the housing 1 via a flange connection or other common connection methods, and the inner diameter of the mesh of the filter screen 5 is smaller than the inner diameter of the mesh of the filter cylinder 3. After the mixture passes through the filter cylinder 3 for filtration and purification, larger solid particles will be intercepted inside the mixing cavity. When the mixture passes through the filter screen 5 and flows towards the liquid outlet pipe 21, the filter screen 5 will filter and purify the mixture again, thereby removing smaller solid particles from the mixture, ultimately achieving a good solids removal effect. Correspondingly, since the solids intercepted by the filter screen plate 5 have a smaller particle size than the inner diameter of the mesh of the filter screen cylinder 3, when the device is flushed, the solids intercepted by the filter screen plate 5 can pass through the filter screen cylinder 3 and enter the mixing cavity, and finally leave the device along the drain pipe 13.
[0040] Optionally, to improve the assembly reliability between the filter screen 5, the mixing assembly, and the filter cylinder 3, such as... Figure 7 As shown, the filter screen plate 5 may be provided with a locking screw hole 51, and a locking screw 6 is provided inside the locking screw hole 51. During assembly, the operator can make the bottom end of the locking screw 6 abut against the top surface of the blocking plate 42, thereby increasing the pressing force between the mixing component and the filter screen cylinder 3.
[0041] In addition, in this embodiment, a top groove 421 for accommodating the locking screw 6 may be provided on the top surface of the blocking disc 42, and a guide inner cone surface is provided at the opening of the top groove 421 to improve the stability of the top contact between the locking screw 6 and the mixing component.
[0042] It should be noted that, in actual application of this device, operators should install control valves on the inlet pipe 11, dosing pipe 12, drain pipe 13, outlet pipe 21, and backwash branch pipe 22 respectively, so as to adjust the on / off state of each pipe fitting by means of control valves, thereby matching the liquid flow direction inside the device with the actual needs.
[0043] The effects of the above solution are explained below:
[0044] This embodiment provides a generator stator cooling water purification device. Through the inlet pipe and dosing pipe, the cooling water and pH adjusting agent form a swirling flow inside the mixing cavity, improving the mixing effect. Secondly, the device can block the mixture of cooling water and pH adjusting agent through the mixing components and guide the mixture to a radial distribution, further improving mixing uniformity. In addition, the device performs two filtrations of the mixture using a filter cylinder and a filter plate, thus improving the solids interception effect. Furthermore, the backwash branch pipe and drain pipe reduce the difficulty of cleaning and maintenance, improving ease of use.
[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A generator stator cooling water purification device, characterized in that, include: The housing (1), cover (2), filter cylinder (3), and mixing assembly are provided. The cover (2) is detachably mounted on the top of the housing (1), and the filter cylinder (3) is detachably mounted inside the housing (1). The filter cylinder (3) divides the interior of the housing (1) into a mixing cavity and a purification cavity. The purification cavity is located inside the filter cylinder (3), and the mixing cavity is located outside the filter cylinder (3). The side wall of the housing (1) is provided with an inlet pipe (11) and a dosing pipe (12), and the bottom surface of the housing (1) is provided with a drain pipe (13). The inlet pipe (11), the dosing pipe (12), and the drain pipe (13) are all connected to the mixing cavity. The cover (2) is provided with an outlet pipe (21), and the outlet pipe (21) is provided with... Backwash branch pipe (22); the axes of the liquid inlet pipe (11) and the dosing pipe (12) are perpendicular to the diameter of the filter cylinder (3), and the liquid inlet pipe (11) and the dosing pipe (12) are arranged symmetrically on both sides of the axis of the filter cylinder (3); the mixing component is detachably installed inside the housing (1), the mixing component includes an isolation plate (41) and a blocking plate (42), the blocking plate (42) is located above the isolation plate (41), and the bottom surface of the blocking plate (42) is connected to the top surface of the isolation plate (41) through a connecting piece (43); the outer diameter of the blocking plate (42) is smaller than the inner diameter of the housing (1), the outer diameter of the isolation plate (41) is equal to the inner diameter of the housing (1), and a guide hole (411) communicating with the purification cavity is provided on the isolation plate (41).
2. The generator stator cooling water purification device according to claim 1, characterized in that: The top of the filter cylinder (3) is provided with a splicing tube (31), which is inserted into the flow guide hole (411), and the outer diameter of the splicing tube (31) is equal to the inner diameter of the flow guide hole (411).
3. The generator stator cooling water purification device according to claim 2, characterized in that: The outer diameter of the filter cylinder (3) is larger than the inner diameter of the guide hole (411), and a sealing ring (32) is provided between the top of the filter cylinder (3) and the bottom surface of the isolation plate (41).
4. The generator stator cooling water purification device according to claim 1, characterized in that: There are multiple connecting pieces (43), which are arranged radially on the periphery of the filter cylinder (3) axis, and a flow guiding gap is provided between any two adjacent connecting pieces (43).
5. The generator stator cooling water purification device according to claim 1, characterized in that: The generator stator cooling water purification device also includes a filter screen plate (5), which is detachably disposed between the cover (2) and the housing (1), and the inner diameter of the mesh of the filter screen plate (5) is smaller than the inner diameter of the mesh of the filter screen cylinder (3).
6. The generator stator cooling water purification device according to claim 5, characterized in that: The filter screen (5) is provided with a locking screw hole (51), and a locking screw (6) is provided inside the locking screw hole (51). The bottom end of the locking screw (6) abuts against the top surface of the blocking plate (42).
7. The generator stator cooling water purification device according to claim 6, characterized in that: The top surface of the blocking disc (42) is provided with an abutment groove (421) for accommodating the locking screw (6), and a guide inner cone surface is provided at the opening of the abutment groove (421).