A performance monitoring device for a large-scale high-level water intake cooling tower

Abstract

The present invention discloses a performance monitoring device for a large high-level water collecting cooling tower, which includes a cooling tower main body. A vertical shaft is arranged through the inside of the cooling tower main body from top to bottom. Water collecting troughs are connected to the middle positions of the four ends of the cooling tower main body, namely the front, back, left, and right. A second outer area water distribution trough is installed inside the water collecting troughs at the front and back positions. An inner area water distribution trough is arranged near the upper end inside the water collecting trough at the left end. The lower end of the inner area water distribution trough is connected to a first outer area water distribution trough. A first water level measuring point is arranged near the right rear position at the upper end of the cooling tower main body. A first water temperature measuring point is installed at the left rear position of the cooling tower main body. This performance monitoring device for a large high-level water collecting cooling tower can greatly shorten the time for steam pipeline drainage to enter the drainage expansion vessel, reduce the erosion of the steam on the drainage valve, improve the service life of the drainage valve, and increase the safety and reliability of the overall operation of the unit.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring devices, and particularly to a performance monitoring device for a large-scale high-level water collection cooling tower. Background Technique

[0002] In a circulating water system adopting a high-level water collection natural draft cooling tower, through the high-level water collection technology, the head of the circulating pump can be greatly reduced, and significant energy-saving effects can be obtained. However, the real-time diagnosis of the cooling performance of the high-level tower itself is basically blank. By setting performance measurement points in the high-level tower, the main parameters during operation can be monitored in real time, which can effectively improve the operation adjustment accuracy and flexibility.

[0003] Most existing high-level towers do not conduct real-time monitoring of the thermal performance parameters of the cooling tower. Only a small number of measurement points are set for the water temperature at the outlet of the cooling tower. The operation scheduling of the circulating water system is basically carried out according to experience. The existing solutions cannot obtain detailed and comprehensive performance parameters such as the water temperature distribution and water level at the outlet of the cooling tower in real time. Therefore, the operation scheduling of the circulating water system is only carried out according to experience, resulting in the failure to fully tap the energy-saving potential. For this reason, we propose a performance monitoring device for a large-scale high-level water collection cooling tower. Summary of the Invention

[0004] The purpose of the present invention is to provide a performance monitoring device for a large-scale high-level water collection cooling tower to solve the problems in the above background technique that most existing high-level towers do not conduct real-time monitoring of the thermal performance parameters of the cooling tower, only a small number of measurement points are set for the water temperature at the outlet of the cooling tower, the operation scheduling of the circulating water system is basically carried out according to experience, the existing solutions cannot obtain detailed and comprehensive performance parameters such as the water temperature distribution and water level at the outlet of the cooling tower in real time, and therefore the operation scheduling of the circulating water system is only carried out according to experience, resulting in the failure to fully tap the energy-saving potential.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A performance monitoring device for a large-scale high-level water collection cooling tower, including a cooling tower main body. A shaft is vertically arranged through the interior of the cooling tower main body. Water collection troughs are connected to the four ends (front, back, left, and right) of the cooling tower main body near the middle position. A second outer area water distribution trough is installed inside the water collection troughs at the front and back positions. An inner area water distribution trough is arranged near the upper end inside the water collection trough at the left position. The lower end of the inner area water distribution trough is connected to a first outer area water distribution trough. There are two groups of the inner area water distribution trough and the first outer area water distribution trough, and they are symmetrically arranged with respect to the cooling tower main body. A first water level measurement point is arranged near the upper right rear position of the cooling tower main body, and a first water temperature measurement point is installed at the left rear position of the cooling tower main body.

[0006] As a further solution of the present invention, a second water temperature measuring point is arranged near the rear side at the upper end of the shaft, a second water level measuring point is installed near the lower side at the upper end of the shaft, and railings are fixedly connected to the four front, rear, left and right ends of the shaft.

[0007] As a further solution of the present invention, a circulating water channel is connected to the left end of the water collecting tank, a ring foundation is arranged at the upper end of the circulating water channel, a cooling tower chevron column is connected to the upper end of the ring foundation, a slope is arranged inside the left end of the water collecting tank, a sidewalk is arranged at the upper end of the slope, and a buffer ramp is arranged near the middle position at the left end of the water collecting tank.

[0008] As a further solution of the present invention, a circulating water pump house inlet is connected to the left end of the circulating water channel, a water storage room is connected to the upper end of the circulating water pump house inlet, and an air release pipe is installed near the lower right corner of the circulating water pump house inlet.

[0009] As a further solution of the present invention, a steam pipeline is connected to the right end of the air release pipe, a steam trap valve is arranged at the upper end of the steam pipeline, a driving gear is movably connected to the lower end of the steam trap valve, a steam trap expander is arranged near the upper side at the right end of the steam pipeline, and a guide rod is inserted into the steam trap expander.

[0010] As a further solution of the present invention, a connecting rod is arranged near the left side at the upper end of the steam trap expander, a driven gear is movably connected to the upper end of the connecting rod, and tooth threads are arranged on the surface of the guide rod.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the meshing connection between the driving gear and the driven gear, when the steam trap valve is manually rotated, the driving gear drives the driven gear to rotate, and then the driven gear meshes with the tooth threads arranged on the guide rod to drive the guide rod to rise or fall, so as to control the water flow size during steam trap, optimize the control mode of the steam trap valve, valve arrangement, etc., which can greatly shorten the time for the steam in the steam pipeline to enter the steam trap expander during steam trap, reduce the erosion of the steam on the steam trap valve, improve the service life of the steam trap valve, and increase the safety and reliability of the overall operation of the unit;

[0012] Through the circulating water pump house inlet and the connected circulating water channel, the water flow can be transitioned in the circulating water channel from the circulating water pump house inlet, connecting the water collecting tank arranged on the ground inside the cooling tower main body with the underground circulating water channel outside the cooling tower main body. Thus, the water between the water collecting tank and the circulating water pump house inlet can be smoothly transitioned, reducing the water resistance while facilitating construction, and reducing the impact of the water collecting tank on the structural safety of the cooling tower main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1Schematic plan view of the present invention;

[0014] Figure 2 Schematic view of part A structure of the present invention;

[0015] Figure 3 Schematic view of the water collecting tank structure in the present invention;

[0016] Figure 4 Schematic view of the hydrophobic structure in the present invention.

[0017] In the figure: 1, main body of the cooling tower; 2, inner area water distribution tank; 3, first outer area water distribution tank; 4, shaft; 5, second outer area water distribution tank; 6, water collecting tank; 7, first water level measuring point; 8, second water level measuring point; 9, railing; 10, first water temperature measuring point; 11, second water temperature measuring point; 12, intake chamber of the circulating water pump house; 13, buffer ramp; 14, slope; 15, water storage chamber; 16, herringbone column of the cooling tower; 17, ring foundation; 18, connecting rod; 19, circulating water channel; 20, sidewalk; 21, air vent pipe; 22, steam pipeline; 23, hydrophobic valve; 24, driving gear; 25, driven gear; 26, guide rod; 27, hydrophobic flash tank. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4, the present invention provides a technical solution: a performance monitoring device for a large-scale high-level water intake cooling tower, including a cooling tower main body 1. A vertical shaft 4 runs through the interior of the cooling tower main body 1 from top to bottom. Water collecting troughs 6 are connected to the middle positions of the four ends (front, back, left, and right) of the cooling tower main body 1. A second outer area water distribution trough 5 is installed inside the water collecting troughs 6 at the front and back positions. An inner area water distribution trough 2 is arranged near the upper end inside the water collecting trough 6 at the left end position. The lower end of the inner area water distribution trough 2 is connected to a first outer area water distribution trough 3. There are two groups of the inner area water distribution trough 2 and the first outer area water distribution trough 3, and they are symmetrically arranged with respect to the cooling tower main body 1. A first water level measuring point 7 is arranged near the upper right rear position of the cooling tower main body 1. A first water temperature measuring point 10 is installed at the left rear position of the cooling tower main body 1. A second water temperature measuring point 11 is arranged near the rear side position at the upper end of the vertical shaft 4. A second water level measuring point 8 is installed near the lower side position at the upper end of the vertical shaft 4. Railings 9 are fixedly connected to the four ends (front, back, left, and right) of the vertical shaft 4. Through the meshing connection between the driving gear 24 and the driven gear 25, when manually rotating the drain valve 23, the driving gear 24 drives the driven gear 25 to rotate. Then, through the meshing connection between the driven gear 25 and the tooth pattern on the guide rod 26, the guide rod 26 is driven to rise or fall, thereby achieving the purpose of controlling the water flow size during drainage. By optimizing the control method of the drain valve 23, valve arrangement, etc., the time for the steam pipeline 22 to drain water into the drain flash tank 27 can be greatly shortened, the erosion of the drain valve 23 by steam can be reduced, the service life of the drain valve 23 can be increased, and the safety and reliability of the overall operation of the unit can be enhanced.

[0020] A circulating water channel 19 is connected to the left end of the water collecting tank 6. A ring foundation 17 is arranged at the upper end of the circulating water channel 19. A cooling tower chevron column 16 is connected to the upper end of the ring foundation 17. A slope 14 is arranged inside the left end of the water collecting tank 6. A sidewalk 20 is arranged at the upper end of the slope 14. A buffer ramp 13 is arranged at a position near the middle of the left end of the water collecting tank 6. A circulating water pump house inlet chamber 12 is connected to the left end of the circulating water channel 19. A water storage chamber 15 is connected to the upper end of the circulating water pump house inlet chamber 12. An air release pipe 21 is installed at a position near the lower right corner of the circulating water pump house inlet chamber 12. The right end of the air release pipe 21 is connected to a steam pipe 22. A steam trap valve 23 is arranged at the upper end of the steam pipe 22. A driving gear 24 is movably connected to the lower end of the steam trap valve 23. A steam trap expander 27 is arranged at a position near the upper side of the right end of the steam pipe 22. A guide rod 26 is inserted into the steam trap expander 27. A connecting rod 18 is arranged at a position near the left side of the upper end of the steam trap expander 27. A driven gear 25 is movably connected to the upper end of the connecting rod 18. Tooth patterns are arranged on the surface of the guide rod 26. Through the circulating water pump house inlet chamber 12 and the connected circulating water channel 19, water flow can transition in the circulating water channel 19 from the circulating water pump house inlet chamber 12, connecting the water collecting tank 6 on the ground inside the cooling tower main body 1 to the underground circulating water channel 19 outside the cooling tower main body 1. Thus, the water between the water collecting tank 6 and the circulating water pump house inlet chamber 12 can be smoothly transitioned, reducing water resistance while facilitating construction and reducing the impact of the water collecting tank 6 on the structural safety of the cooling tower main body 1.

[0021] Working principle: For this type of large-scale high-position water collection cooling tower performance monitoring device, corresponding water distribution zones are set in different water distribution zones on the cooling tower main body 1, and a first water temperature measuring point 10 and a second water temperature measuring point 11 are set in the water collection tank 6. The planar distribution of the water temperature leaving the tower in the area of the cooling tower main body 1 can be received in real time, and the operating state of the cooling tower main body 1 can be understood in real time. At the same time, water temperature and water level measuring points are set at the starting point, midpoint, end point, and shaft 4 of the water collection tank 6, so as to accurately obtain the cooling effect of the cooling tower main body 1. Further, the state parameters of the circulating water system can be accurately understood, providing basic data for optimized scheduling; through the circulating water pump house inlet 12 and the connected circulating water channel 19, the water flow can be transitioned in the circulating water channel 19 from the circulating water pump house inlet 12, connecting the water collection tank 6 set on the ground in the cooling tower main body 1 with the underground circulating water channel 19 outside the cooling tower main body 1. Thus, the water between the water collection tank 6 and the circulating water pump house inlet 12 can be smoothly transitioned, reducing water resistance while facilitating construction, and reducing the impact of the water collection tank 6 on the structural safety of the cooling tower main body 1. Through the meshing connection between the driving gear 24 and the driven gear 25, when manually rotating the drain valve 23, the driving gear 24 drives the driven gear 25 to rotate, and then drives the guide rod 26 to rise or fall through the meshing connection between the driven gear 25 and the tooth pattern set on the guide rod 26, so as to achieve the purpose of controlling the water flow size during drainage. Optimizing the control method of the drain valve 23, valve layout, etc. can greatly shorten the time for the steam pipeline 22 to drain into the drain expansion vessel 27, reduce the erosion of the steam on the drain valve 23, improve the service life of the drain valve 23, and increase the safety and reliability of the overall operation of the unit.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. In a performance monitoring device for a large-scale high-level water intake cooling tower, comprising a cooling tower main body (1), it is characterized in that: The cooling tower main body (1) is provided with a vertical shaft (4) running through it from top to bottom. At the middle positions near the four ends of the front, back, left, and right of the cooling tower main body (1), water collecting troughs (6) are connected. Inside the water collecting troughs (6) at the front and back positions, second outer area water distribution troughs (5) are installed. Near the upper end position inside the water collecting trough (6) at the left end, an inner area water distribution trough (2) is provided. The lower end of the inner area water distribution trough (2) is connected to a first outer area water distribution trough (3). The inner area water distribution trough (2) and the first outer area water distribution trough (3) are both provided with two groups and are symmetrically arranged with respect to the cooling tower main body (1). Near the upper right rear position at the upper end of the cooling tower main body (1), a first water level measuring point (7) is provided. At the rear left position of the cooling tower main body (1), a first water temperature measuring point (10) is installed. Near the rear side position at the upper end of the vertical shaft (4), a second water temperature measuring point (11) is provided. Near the lower side position at the upper end of the vertical shaft (4), a second water level measuring point (8) is installed. Railings (9) are fixedly connected to the four ends of the front, back, left, and right of the vertical shaft (4). The left end of the water collecting trough (6) is connected to a circulating water channel (19). At the upper end of the circulating water channel (19), a ring foundation (17) is provided. The upper end of the ring foundation (17) is connected to the cooling tower herringbone columns (16). Inside the left end of the water collecting trough (6), a slope (14) is provided. At the upper end of the slope (14), a sidewalk (20) is provided. Near the middle position at the left end of the water collecting trough (6), a buffer ramp (13) is provided.

2. The performance monitoring device for a large-scale high-position water collection cooling tower according to claim 1, wherein: The left end of the circulating water channel (19) is connected to the circulating water pump house intake chamber (12). The upper end of the circulating water pump house intake chamber (12) is connected to a water storage chamber (15). Near the lower right corner position of the circulating water pump house intake chamber (12), an air release pipe (21) is installed.

3. The performance monitoring device for a large high-level water intake cooling tower according to claim 2, characterized in that: The right end of the air release pipe (21) is connected to a steam pipeline (22). At the upper end of the steam pipeline (22), a steam trap valve (23) is provided. The lower end of the steam trap valve (23) is movably connected to a driving gear (24). Near the upper side position at the right end of the steam pipeline (22), a steam trap flash tank (27) is provided. A guide rod (26) is inserted into the steam trap flash tank (27).

4. A performance monitoring device for a large high-level water intake cooling tower according to claim 3, characterized in that: Near the left side position at the upper end of the steam trap flash tank (27), a connecting rod (18) is provided. The upper end of the connecting rod (18) is movably connected to a driven gear (25). The surface of the guide rod (26) is provided with tooth patterns.

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