On-line adjusting and automatic detecting device for water feeding pump
The online regulation and automatic detection device, composed of an eccentric regulating valve and a flow meter, solves the problems of leakage and energy waste caused by valve wear in the water pump, and achieves efficient and stable operation and low-cost maintenance of the water pump.
Patent Information
- Application Number
- CN202520407067.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-10
AI Technical Summary
The valves of the feedwater pump suffer severe wear under high temperature and pressure, leading to leakage, loss of working fluid and energy waste. Frequent maintenance increases maintenance costs and downtime, and reduces power generation efficiency.
An online regulation and automatic detection device consisting of an eccentric regulating valve and a flow meter is used to monitor the flow rate in real time and feed it back to the regulating cylinder to control the movement of the regulating disc of the eccentric regulating valve, thereby achieving precise online regulation of the water pump flow rate.
It improves the operating efficiency and stability of the water pump, reduces energy consumption and maintenance costs, and achieves high-precision flow regulation and real-time detection.
Smart Images
Figure CN223894439U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water pump regulation, and in particular relates to an online regulation and automatic detection device for water pumps. Background Technology
[0002] Feedwater pumps need to operate continuously under complex conditions such as high pressure and high temperature. Fluctuations in flow rate can lead to unstable system pressure, equipment wear, or energy waste. The valves of the feedwater pumps are the main actuators for regulating flow. Power plant feedwater pumps operate under harsh conditions of high temperature, high pressure, and high flow rate for extended periods, making the valve sealing surfaces and valve cores highly susceptible to erosion and wear.
[0003] Currently, severe wear on feedwater pump valves can lead to leaks, affecting the system's pressure maintenance and potentially causing fluid loss and energy waste. Furthermore, frequent wear necessitates periodic shutdowns for maintenance and valve component replacement, increasing maintenance costs and downtime, and reducing power generation efficiency. Utility Model Content
[0004] In view of this, the present invention aims to propose an online adjustment and automatic detection device for a water pump to solve the problem that once the water pump valve is severely worn, it will lead to valve leakage, which not only affects the normal pressure maintenance of the system, but may also cause working fluid loss and energy waste. Moreover, frequent wear requires periodic shutdown for maintenance and replacement of valve components, which increases maintenance costs and downtime, and reduces power generation efficiency.
[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0006] This utility model provides an online adjustment and automatic detection device for a water supply pump, comprising: a first flow meter connecting the water supply pump inlet pipe to a first water supply pump connecting valve, the bottom of the first water supply pump connecting valve being connected to the water supply pump inlet flange; a second flow meter connecting the water supply pump outlet pipe to a second water supply pump connecting valve, the bottom of the second water supply pump connecting valve being connected to the water supply pump outlet flange; both the first and second water supply pump connecting valves are eccentric regulating valves with identical structures; the eccentric regulating valve body is provided with an adjusting butterfly plate, the adjusting butterfly plate being connected to an adjusting cylinder; the eccentric regulating valve body is connected to a buffer connector via a fixed support, the buffer connector being connected to the adjusting cylinder; the adjusting cylinder of the first water supply pump connecting valve is connected to the first flow meter; and the adjusting cylinder of the second water supply pump connecting valve is connected to the second flow meter.
[0007] Furthermore, the cylinder extension rod of the adjusting cylinder is connected to the cylinder connecting shaft, and the cylinder connecting shaft is connected to the connecting rod through a union, which is connected to the adjusting disc.
[0008] Furthermore, the adjusting butterfly plate is connected to the eccentric adjusting valve body via the valve shaft. The adjusting butterfly plate is symmetrically provided with butterfly plate fixing blocks, which are connected to the valve shaft via bearings. A butterfly plate connecting block is provided on the central axis of the adjusting butterfly plate, and the butterfly plate connecting block is connected to the connecting rod.
[0009] Furthermore, the top of the cylinder connecting shaft is fixed to the mounting block fixed inside the adjusting cylinder, and the mounting block is fixed to the sliding mounting plate inside the buffer connector. The sliding mounting plate is slidably connected to and sealed to the inner wall of the buffer connector. The adjusting cylinder is equipped with a buffer spring, one end of which presses against the sliding mounting plate and the other end of which presses against the cylinder wall of the adjusting cylinder.
[0010] Furthermore, a valve body cover is provided at the connection between the eccentric regulating valve body and the fixed support. The cylinder connecting shaft passes through the valve body cover and is connected to the connecting rod. The valve shaft is located on the central axis of the eccentric regulating valve body and is perpendicular to the axis of the cylinder connecting shaft. The valve shaft passes through the eccentric regulating valve body from the rear and is fixed by the rear axle seat and the cover of the rear axle seat. The valve shaft is fixed to the eccentric regulating valve body from the front by the front axle seat. An indicator plate, a pointer, and the front axle seat are fixed on the valve shaft. A limiting block is provided inside the eccentric regulating valve body on the side of the regulating disc and is locked by a positioning pin. The limiting blocks on the left and right sides are arranged opposite each other.
[0011] Compared with existing technologies, the online adjustment and automatic detection device for water supply pumps described in this utility model has the following advantages: The device monitors the flow rate of the water supply pump's inlet and outlet pipes in real time using a first flow meter and a second flow meter, and feeds the flow data back to the connected regulating cylinder. The regulating cylinder controls the movement of the regulating disc within the eccentric regulating valve according to the flow rate changes, achieving precise online adjustment of the water supply pump's flow rate. The special design of the eccentric regulating valve and its connection method with other components improve the stability and reliability of the adjustment, achieving high-precision online adjustment and real-time automatic detection of the water supply pump's flow rate, improving the pump's operating efficiency and stability, and reducing energy consumption and maintenance costs. Attached Figure Description
[0012] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0013] In the attached diagram:
[0014] Figure 1 This is a schematic diagram of the installation of the online adjustment and automatic detection device for the water supply pump described in this embodiment of the utility model;
[0015] Figure 2 This is an isometric schematic diagram of the eccentric regulating valve of the online adjustment and automatic detection device for the water pump described in this embodiment of the utility model;
[0016] Figure 3 This is a front view schematic diagram of the eccentric regulating valve of the online adjustment and automatic detection device for the water pump described in this embodiment of the utility model;
[0017] Figure 4 This is a side view of the eccentric regulating valve of the online adjustment and automatic detection device for the water pump described in this embodiment of the utility model.
[0018] Figure 5 This is a cross-sectional view of the eccentric regulating valve in the side view of the online adjustment and automatic detection device for the water pump described in this embodiment of the utility model.
[0019] Figure 6 This is a top view schematic diagram of the eccentric regulating valve of the online adjustment and automatic detection device for the water pump described in this embodiment of the utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Eccentric regulating valve body; 2. Regulating cylinder; 3. Buffer connector; 4. Fixed support; 5. Buffer spring; 6. Valve body cover; 7. Cylinder connecting shaft; 8. Connecting rod; 9. Union joint; 10. Adjusting butterfly plate; 11. Butterfly plate fixing block; 12. Butterfly plate connecting block; 13. Valve shaft; 14. Rear axle seat; 15. Front axle seat; 16. Indicator dial; 17. Pointer; 18. Positioning pin; 19. Cylinder telescopic rod; 20. First flow meter; 21. First feed water pump connecting valve; 22. Feed water pump inlet flange; 23. Second flow meter; 24. Second feed water pump connecting valve; 25. Feed water pump outlet flange. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] 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.
[0024] 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.
[0025] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] See Figures 1-6 As shown, this embodiment provides an online adjustment and automatic detection device for a water supply pump, including: a first flow meter 20 connecting the water supply pump inlet pipe to a first water supply pump connecting valve 21, the bottom of the first water supply pump connecting valve 21 being connected to the water supply pump inlet flange 22; a second flow meter 23 connecting the water supply pump outlet pipe to a second water supply pump connecting valve 24, the bottom of the second water supply pump connecting valve 24 being connected to the water supply pump outlet flange 25; both the first water supply pump connecting valve 21 and the second water supply pump connecting valve 24 are eccentric regulating valves with the same structure; the eccentric regulating valve body 1 of the eccentric regulating valve is provided with an adjusting butterfly plate 10, the adjusting butterfly plate 10 being connected to an adjusting cylinder 2; the eccentric regulating valve body 1 being connected to a buffer connector 3 via a fixed support 4, the buffer connector 3 being connected to the adjusting cylinder 2; the adjusting cylinder 2 of the first water supply pump connecting valve 21 being connected to the first flow meter 20; and the adjusting cylinder 2 of the second water supply pump connecting valve 24 being connected to the second flow meter 23.
[0027] Specifically, in this embodiment, the cylinder extension rod 19 of the adjusting cylinder 2 is connected to the cylinder connecting shaft 7, the cylinder connecting shaft 7 is connected to the connecting rod 8 through the union joint 9, and the union joint 9 is connected to the adjusting disc 10.
[0028] Specifically, in this embodiment, the adjusting butterfly plate 10 is connected to the eccentric adjusting valve body 1 via the valve shaft 13. The adjusting butterfly plate 10 is symmetrically provided with butterfly plate fixing blocks 11. The butterfly plate fixing blocks 11 are connected to the valve shaft 13 via bearings. The adjusting butterfly plate 10 is provided with a butterfly plate connecting block 12 on its central axis. The butterfly plate connecting block 12 is connected to the connecting rod 8.
[0029] Specifically, in this embodiment, the top of the cylinder connecting shaft 7 is fixed to the mounting block fixed inside the adjusting cylinder 2, and the mounting block is fixed to the sliding mounting plate inside the buffer connector 3. The sliding mounting plate is slidably connected to the inner wall of the buffer connector 3 and they are sealed to each other. The adjusting cylinder 2 is provided with a buffer spring 5. One end of the buffer spring 5 presses against the sliding mounting plate, and the other end presses against the cylinder wall of the adjusting cylinder 2.
[0030] Specifically, in this embodiment, a valve body cover 6 is provided at the connection between the eccentric regulating valve body 1 and the fixed support 4. The cylinder connecting shaft 7 passes through the valve body cover 6 and is connected to the connecting rod 8. The valve shaft 13 is located on the central axis of the eccentric regulating valve body 1 and is perpendicular to the axis of the cylinder connecting shaft 7. The valve shaft 13 passes through the eccentric regulating valve body 1 at the rear and is fixed by the rear axle seat 14 and the cover of the rear axle seat. The valve shaft 13 is fixed to the eccentric regulating valve body 1 at the front by the front axle seat 15. An indicator plate 16, a pointer 17, and the front axle seat 15 are fixed on the valve shaft 13. A limiting block is provided on the side of the regulating butterfly plate 10 inside the eccentric regulating valve body 1 and is locked by the positioning pin 18. The limiting blocks on the left and right sides are arranged opposite to each other.
[0031] The online regulation and automatic detection device for the water supply pump monitors the flow rate of the inlet and outlet pipes of the water supply pump in real time through a first flow meter and a second flow meter, and feeds the flow data back to the connected regulating cylinder. The regulating cylinder controls the movement of the regulating disc in the eccentric regulating valve according to the flow rate change, thereby achieving precise online regulation of the water supply pump flow rate. The special design of the eccentric regulating valve and the connection method with other components improve the stability and reliability of the regulation, realize high-precision online regulation and real-time automatic detection of the water supply pump flow rate, improve the operating efficiency and stability of the water supply pump, and reduce energy consumption and maintenance costs.
[0032] 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 device for online adjustment and automatic detection of a water supply pump, characterized in that, The system includes a first flow meter (20) connecting the water inlet pipe of the water pump to the first water pump connecting valve (21), the bottom of which is connected to the water inlet flange (22) of the water pump; a second flow meter (23) connecting the water outlet pipe of the water pump to the second water pump connecting valve (24), the bottom of which is connected to the water outlet flange (25) of the water pump; and both the first water pump connecting valve (21) and the second water pump connecting valve (24) are eccentric regulating valves with the same structure. The eccentric regulating valve body (1) of the eccentric regulating valve is provided with a regulating butterfly plate (10), the regulating butterfly plate (10) is connected to the regulating cylinder (2), the eccentric regulating valve body (1) is connected to the buffer connector (3) through the fixed support (4), the buffer connector (3) is connected to the regulating cylinder (2), the regulating cylinder (2) of the first water pump connecting valve (21) is connected to the first flow meter (20), and the regulating cylinder (2) of the second water pump connecting valve (24) is connected to the second flow meter (23).
2. The online adjustment and automatic detection device for water supply pumps according to claim 1, characterized in that, The cylinder extension rod (19) of the regulating cylinder (2) is connected to the cylinder connecting shaft (7), the cylinder connecting shaft (7) is connected to the connecting rod (8) through the union joint (9), and the union joint (9) is connected to the regulating disc (10).
3. The online adjustment and automatic detection device for water supply pumps according to claim 2, characterized in that, The adjusting butterfly plate (10) is connected to the eccentric adjusting valve body (1) via the valve shaft (13). The adjusting butterfly plate (10) is symmetrically provided with butterfly plate fixing blocks (11). The butterfly plate fixing blocks (11) are connected to the valve shaft (13) via bearings. The adjusting butterfly plate (10) is provided with a butterfly plate connecting block (12) on the central axis. The butterfly plate connecting block (12) is connected to the connecting rod (8).
4. The online adjustment and automatic detection device for water supply pumps according to claim 1, characterized in that, The top of the cylinder connecting shaft (7) is fixed to the mounting block fixed in the adjusting cylinder (2), and the mounting block is fixed to the sliding mounting plate in the buffer connector (3). The sliding mounting plate is slidably connected to the inner wall of the buffer connector (3) and they are sealed to each other. The adjusting cylinder (2) is provided with a buffer spring (5). One end of the buffer spring (5) is pressed against the sliding mounting plate, and the other end is pressed against the cylinder wall of the adjusting cylinder (2).
5. The online adjustment and automatic detection device for water supply pumps according to claim 1, characterized in that, A valve body cover (6) is provided at the connection between the eccentric regulating valve body (1) and the fixed support (4). The cylinder connecting shaft (7) passes through the valve body cover (6) and is connected to the connecting rod (8). The valve shaft (13) is located on the central axis of the eccentric regulating valve body (1) and is perpendicular to the axis of the cylinder connecting shaft (7). The valve shaft (13) passes through the eccentric regulating valve body (1) and is fixed by the rear axle seat (14) and the cover of the rear axle seat. The valve shaft (13) is fixed to the eccentric regulating valve body (1) in front by the front axle seat (15). The valve shaft (13) is fixed with an indicator plate (16), a pointer (17) and the front axle seat (15). The eccentric regulating valve body (1) has a limiting block on the side of the regulating butterfly plate (10) and is locked by a positioning pin (18). The limiting blocks on the left and right sides are set opposite to each other.