A valve well behind a circulating water pumping station

Abstract

The utility model relates to a kind of valve well after circulating water pump station, including well body and the ventilation piece being located at the upper portion of well body, ventilation piece includes support ring seat, ventilation side plate, air hole, baffle, middle support piece and upper ventilation cover, ventilation side plate is annularly connected in the outside of support ring seat;Air hole is set on ventilation side plate, and air hole is equipped with several;Baffle is annularly connected on support ring seat, to separate support ring seat into water-accumulating area and maintenance area;Middle support piece is connected on annular ventilation side plate;Upper ventilation cover is rotatably connected on middle support piece.Affirmative effect is that: by setting several air holes in the middle of ventilation side plate, air circulation can be carried out around, greatly increase the area and path of air circulation;By baffle, a small amount of water that can appear is blocked, to provide convenience for operator to the routine maintenance of ventilation piece;By upper ventilation cover, the ventilation amount of valve well is flexibly adjusted, increase the convenience of valve well ventilation.

Description

Technical Field

[0001] This utility model belongs to the technical field of water station valve wells, specifically relating to a valve well after a circulating water pump station. Background Technology

[0002] Circulating water pumping stations are a crucial component of the entire water circulation system. In factories, various large mechanical equipment generates significant heat during operation. Circulating water pumping stations continuously draw cooling water to remove this heat, ensuring the equipment operates stably at suitable temperatures. Similarly, circulating water pumping stations are indispensable in urban centralized heating systems. They facilitate the circulation of hot water within the pipe network, delivering warmth to countless households and creating a comfortable living environment for residents.

[0003] The valve well of the circulating water pump station is equipped with various valves and pipes. During operation, the temperature inside the well will rise due to factors such as the flow of the medium and the operation of the equipment. If ventilation is not provided in time, the aging and corrosion of the equipment will be accelerated at excessively high temperatures, shortening the service life of the equipment and increasing maintenance costs.

[0004] The top of the rear valve well of the existing circulating water pumping station is usually sealed with a precast reinforced concrete slab or steel cover plate. Maintenance requires hoisting to open it, and the well is in a dark and humid state for a long time, which greatly reduces the service life of the rear valve well of the circulating water pumping station and increases the maintenance difficulty for maintenance personnel. Utility Model Content

[0005] This utility model provides a rear valve well for a circulating water pumping station, which aims to solve the problem that the rear valve well of the existing circulating water pumping station is in a dark and humid state for a long time, which greatly reduces the service life of the rear valve well and increases the maintenance difficulty for maintenance personnel.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A valve well after a circulating water pump station is provided, comprising a well body and a ventilation component disposed above the well body. The ventilation component comprises a support ring seat, a ventilation side plate, vent holes, a baffle, a central support component, and an upper ventilation cover. The ventilation side plate is annularly connected to the outside of the support ring seat; the vent holes are formed on the ventilation side plate, and a plurality of vent holes are provided; the baffle is annularly connected to the support ring seat to divide the support ring seat into a water accumulation area and a maintenance area; the central support component is connected to the annular ventilation side plate; and the upper ventilation cover is rotatably connected to the central support component.

[0007] Preferably, the valve well of the circulating water pump station in this application achieves efficient ventilation through the installation of ventilation components. In this application, the ventilation side plate has a ring-shaped structure and is connected to the outside of the support ring seat. Several air vents are opened in the middle of the ventilation side plate, allowing air circulation from all sides, greatly increasing the air circulation area and path, enabling fresh outside air to quickly and smoothly enter the valve well, while simultaneously expelling any humid or polluted air that may be present inside the well. The good ventilation environment effectively reduces the temperature and humidity inside the well, preventing performance degradation and corrosion caused by prolonged exposure to high temperature and humidity, ensuring the stable operation of the circulating water pump and related equipment, and extending the service life of the equipment.

[0008] The upper ventilation cover is rotatably connected to the central support, allowing for flexible adjustment of ventilation volume according to actual working conditions. When the ambient temperature is high and the equipment inside the well generates a lot of heat, the upper ventilation cover can be opened to a larger angle to increase airflow, quickly remove heat, and lower the temperature inside the well. Conversely, when the ambient temperature is low or in severe weather (such as strong winds or heavy rain), the upper ventilation cover can be closed appropriately to reduce the impact of adverse external factors on the equipment inside the well, while still maintaining a certain level of ventilation and ensuring adequate airflow within the well, creating a relatively stable and suitable operating environment for the equipment.

[0009] The baffle, arranged in a ring, is connected to the support ring seat, dividing the support ring seat into a water accumulation area and a maintenance area, thus solving the problem of water accumulation in the valve well affecting the equipment. During operation, a small amount of rainwater or other liquids may enter the valve well; the baffle isolates the water within the water accumulation area, preventing it from flowing into the maintenance area. The maintenance area facilitates routine maintenance of the ventilation components by operators.

[0010] Furthermore, the vent holes are arranged at an angle of 30°-60° from the outside of the ventilation side plate towards the inside and upward.

[0011] Preferably, the vents angled at 30°-60° provide effective rain protection during rainy weather. Rainwater typically falls vertically or nearly vertically, and this angled vent design makes it difficult for rainwater to directly enter the valve well. Even if a small amount of rainwater splashes onto the ventilation side panel, it will flow away along the angled surface and not enter the well, thus preventing rainwater from soaking and damaging the equipment inside, reducing the risk of equipment malfunction due to moisture, and extending the equipment's service life.

[0012] Furthermore, a protective cover plate is connected to the ventilation side plate, and the protective cover plate has cover plate holes.

[0013] Preferably, the protective cover effectively prevents larger foreign objects, such as branches, stones, and garbage, from entering the valve well. These objects may clog the vents, affecting ventilation and potentially causing physical damage to the circulating water pump and related equipment inside the well. The protective cover is snap-fitted to the ventilation side plate or bolted on, allowing for easy replacement of the cover when maintenance is required.

[0014] Furthermore, a drain hole is connected to the ventilation side plate, one end of which is connected to the water accumulation area, and the other end of which is opened at the bottom of the support ring seat.

[0015] Preferably, during the use of the valve well after the circulating water pump station, water accumulation may form inside the well due to rainfall, condensation from equipment operation, etc. The drainage hole on the ventilation side plate is connected to the water accumulation area at one end and extends to the bottom of the support ring seat and out of the well at the other end, forming a relatively complete drainage channel, allowing the accumulated water to be quickly discharged out of the well through this channel.

[0016] Furthermore, the central support includes a stand connected to the ventilation side plate and an upper ring frame connected to the top of the stand. There are four stands, and tempered glass is connected between the four stands at intervals. The upper ring frame is connected to the upper side of the tempered glass.

[0017] Preferably, the four uprights are evenly connected to the ventilation side panels, forming a stable vertical support structure. The uprights form the skeleton of this application and can withstand external forces from the upper ring frame, the tempered glass sides, and other forces that may be applied to the central support, such as minor impacts during operation and wind. The upper ring frame is connected to the top of the uprights, enhancing the overall stability of the support structure to create a relatively stable frame system, thereby effectively preventing structural deformation and swaying.

[0018] Furthermore, a sealing ring is connected to the upper ring frame, and the upper ventilation cover abuts against the sealing ring.

[0019] Preferably, dust, sand, debris, or rainwater from the external environment may enter the valve well through the gap between the upper ventilation cover and the upper ring frame, damaging the equipment inside the well. The sealing ring's contact action can prevent these impurities from entering the well, maintaining a clean environment inside the well.

[0020] Furthermore, a rotating seat is symmetrically connected to one side of the upper ring frame, the upper ventilation cover is rotatably connected to the two rotating seats, and an upper tempered glass is connected to the middle of the upper ventilation cover.

[0021] Preferably, the upper ventilation cover is rotatably connected to the upper ring frame via a rotating seat, which improves the convenience of opening or closing the upper ventilation cover.

[0022] Furthermore, it also includes a driving component, which includes a driving ring frame connected to the upright frame. Guide slide rods are symmetrically connected to the driving ring frame. Sliding blocks are slidably connected to the guide slide rods. Rotating balls are rotatably connected to the sliding blocks. A top frame is connected to the rotating balls. A rotating connecting rod is connected to the upper ventilation cover. The top frame is rotatably connected to the rotating connecting rod. A lifting cylinder is connected to the driving ring frame. A lifting rod is connected to the telescopic end of the lifting cylinder. Both ends of the lifting rod are connected to the sliding blocks.

[0023] Preferably, a lifting cylinder is provided to drive the opening and closing of the upper ventilation cover. Remote opening and closing control of the upper ventilation cover is achieved through a switch control button and controller in the control center. Alternatively, automatic opening or closing is permitted when necessary. A guide rod guides the sliding block, allowing it to move smoothly along a straight line under the action of the lifting cylinder. By controlling the extension and retraction of the lifting cylinder, the moving distance of the sliding block can be adjusted, thereby changing the opening and closing of the top frame. Since the top frame is rotatably connected to the rotating linkage, changes in the position of the top frame cause the upper ventilation cover to rotate around the rotating seat, achieving different opening angles. For example, when a larger ventilation volume is required, the upper ventilation cover can be opened to 60°-90°; the upper ventilation cover can be opened to a larger angle; while when space is limited or simple observation of the equipment is required, a smaller angle of 15°-30° can be opened.

[0024] Furthermore, a protective railing is connected to the inner side of the support ring seat, and an inspection entrance is provided on one side of the protective railing.

[0025] Preferably, by installing guardrails on the support ring seat, safety protection can be provided for maintenance personnel during maintenance.

[0026] Furthermore, it also includes a staircase storage component, which includes a staircase slide rod connected to the support ring seat. The staircase slide rod is located on one side of the maintenance entrance. An upper ladder is slidably connected to the staircase slide rod. Sliding track grooves are provided on both sides of the upper ladder. A staircase slider is slidably connected to the sliding track groove. A lower ladder is connected to the staircase slider. A screw is rotatably connected in the sliding track groove on one side of the upper ladder. The staircase slider is threadedly connected to the screw. A first gear is connected to one end of the screw. An auxiliary gear meshes with the first gear. The auxiliary gear meshes with a drive gear. A drive motor is connected to the drive gear.

[0027] Preferably, the drive motor drives the drive gear to rotate, and through the meshing transmission between the gears, it sequentially drives the auxiliary gear and the first gear to rotate, thereby causing the screw to rotate. Since the stair slider is threadedly connected to the screw, the rotation of the screw will drive the stair slider to move up and down along the sliding track groove, realizing the automatic lifting and lowering of the lower stair relative to the upper stair, which is convenient for later maintenance personnel.

[0028] The advantages of this utility model compared with the prior art are as follows: 1. By opening several ventilation holes in the middle of the ventilation side plate, air can circulate from all sides, greatly increasing the area and path of air circulation, allowing fresh air from the outside to enter the valve well quickly and smoothly, while expelling any damp or polluted air that may be present in the well. 2. By using baffles to block any small amount of water that may accumulate, the water will be confined to the water accumulation area and will not flow into the maintenance area, thus facilitating the daily maintenance of ventilation components by operators. 3. The upper ventilation cover is rotatably connected to the central support, allowing for flexible adjustment of the ventilation volume according to actual working conditions. In low ambient temperatures or during inclement weather, the upper ventilation cover can be appropriately closed to reduce the impact of adverse external factors on the equipment inside the well. Attached Figure Description

[0029] Figure 1 One of the partial cross-sectional structural schematic diagrams of a valve well after a circulating water pump station provided for an embodiment of this utility model; Figure 2 for Figure 1 Enlarged structural diagram at point Q; Figure 3 A front structural diagram of a valve well in a circulating water pumping station provided for an embodiment of this utility model; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at point AA; Figure 5 for Figure 4 Enlarged structural diagram at point W; Figure 6 A top view of the valve well of a circulating water pump station provided for an embodiment of this utility model; Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point BB; Figure 8 A second partial cross-sectional structural schematic diagram of a valve well downstream of a circulating water pump station provided for an embodiment of this utility model; Figure 9 A third partial cross-sectional structural schematic diagram of a valve well downstream of a circulating water pump station provided for an embodiment of this utility model; Figure 10 One of the overall structural schematic diagrams of a valve well after a circulating water pump station provided in this embodiment of the present utility model; Figure 11 This is the second schematic diagram of the overall structure of a valve well in a circulating water pump station, provided as an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures: 1. Well body; 2. Ventilation components; 21. Support ring seat; 22. Ventilation side panel; 221. Protective cover plate; 222. Cover plate hole; 223. Drain hole; 224. Leakage hole; 23. Ventilation holes; 24. Baffle; 25. Central support component; 251. Vertical frame; 252. Upper ring frame; 26. Install the ventilation cover; 27. Sealing ring; 3. Areas with water accumulation; 4. Maintenance area; 41. Guardrail; 42. Maintenance entrance; 5. Side tempered glass; 6. Rotating base; 7. Top tempered glass; 8. Drive component; 81. Drive ring frame; 82. Guide slide rod; 83. Sliding block; 84. Rotating ball; 85. Top frame; 86. Rotating connecting rod; 87. Lifting cylinder; 88. Lifting rod; 9. Ladder storage components; 91. Stair slide rail; 92. Upward ladder; 93. Sliding track groove; 94. Stair slider; 95. Downward ladder; 96. Screw; 961. First gear; 97. Auxiliary gear; 98. Drive gear; 99. Drive motor. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] Example 1: See Figures 1 to 11 As shown, this utility model discloses a valve well after a circulating water pump station, including a well body 1 and a ventilation component 2 disposed above the well body 1. The ventilation component 2 includes a support ring seat 21, a ventilation side plate 22, vent holes 23, a baffle 24, a central support component 25, and an upper ventilation cover 26. The ventilation side plate 22 is annularly connected to the outside of the support ring seat 21; the vent holes 23 are formed on the ventilation side plate 22, and a plurality of vent holes 23 are provided; the baffle 24 is annularly connected to the support ring seat 21 to divide the support ring seat 21 into a water accumulation area 3 and a maintenance area 4; the central support component 25 is connected to the annular ventilation side plate 22; and the upper ventilation cover 26 is rotatably connected to the central support component 25.

[0033] In this embodiment, the ventilation side plate 22 is vertically connected in a ring shape to the outer edge of the support ring seat 21, forming the side enclosure structure of the ventilation component 2; the ventilation holes 23 are evenly opened on the ventilation side plate 22, and there are several of them, which are used to realize the air circulation inside and outside the well body 1; the baffle 24 is vertically connected in a ring shape to the upper surface of the support ring seat 21, dividing the support ring seat 21 into the inner maintenance area 4 (corresponding to the standing area of ​​maintenance personnel) and the outer water accumulation area 3 (used to contain a small amount of leaked water); the middle support member 25 is fixedly connected to the inner middle of the ring ventilation side plate 22, which is used to support the structure above; the upper ventilation cover 26 is connected to the middle support member 25 through a rotating structure, which can be opened and closed.

[0034] See Figure 1 , Figure 4 , Figure 8 , Figure 9 Figure 10 and Figure 11 As shown, in some embodiments, the vent 23 is arranged at an angle of 30°-60° from the outside to the inside and upward along the ventilation side plate 22.

[0035] In this embodiment, the vent 23 is set at an upward angle of 30°-60° from the outer side to the inner side of the ventilation side plate 22. This angle can prevent rainwater from directly entering the well body 1 through the vent 23, and can also utilize the principle of air convection to allow humid air or odors in the well to be discharged upward through the vent 23, while introducing fresh air from the outside.

[0036] See Figure 1 , Figure 4 , Figure 8 , Figure 9 Figure 10 and Figure 11 As shown, in some embodiments, a protective cover plate 221 is connected to the ventilation side plate 22, and the protective cover plate 221 has a cover plate hole 222.

[0037] In this embodiment, a protective cover plate 221 is installed on the outer side of the ventilation side plate 22. The cover plate hole 222 is formed on the protective cover plate 221 and is offset from the ventilation hole 23. The protective cover plate 221 is used to block external debris such as leaves and stones from entering the ventilation hole 23, while the cover plate hole 222 does not affect the ventilation function, forming double protection. In addition, an auxiliary drainage hole 224 is also provided on the support ring seat 21. The inlet of the auxiliary drainage hole 224 is located between the protective cover plate 221 and the ventilation side plate 22, and the outlet of the auxiliary drainage hole 224 is located at the bottom of the support ring seat 21, to drain the water accumulated between the protective cover plate 221 and the ventilation side plate 22.

[0038] See Figure 1 , Figure 4 , Figure 8 , Figure 9 Figure 10 and Figure 11 As shown, in some embodiments, the ventilation side plate 22 is connected to a drain hole 223, one end of which is connected to the water accumulation area 3, and the other end of which is opened at the bottom of the support ring seat 21.

[0039] In this embodiment, the bottom of the drainage hole 223 is connected to the drainage hole 223, one end of which is connected to the bottom of the water accumulation area 3, and the other end extends to the outer bottom of the support ring seat 21. When a small amount of water accumulates in the water accumulation area 3 due to rainwater or leakage, the water will be automatically discharged to the outside of the well body 1 through the drainage hole 223.

[0040] See Figure 10 and Figure 11 As shown, in some embodiments, the central support member 25 includes a stand 251 connected to the ventilation side plate 22 and an upper ring frame 252 connected to the top of the stand 251. There are four stands 251, and tempered glass 5 is connected between the four stands 251 at intervals. The upper ring frame 252 is connected to the upper side of the tempered glass 5.

[0041] In this embodiment, the support frame 251 consists of four upwardly inclined stainless steel frames (such as 304 stainless steel or other materials), which are evenly fixed to the inner wall of the ventilation side plate 22 to form a quadrilateral support frame; the tempered glass 5 is connected between two adjacent support frames 251, which can both close the side of the maintenance area 4 and allow light to enter the well, while also providing a certain degree of strength protection; the upper ring frame 252 is fixed to the top of the support frame 251 and the upper edge of the tempered glass 5 to form a ring-shaped support structure at the top, which is used to install the upper ventilation cover 26 and related components.

[0042] See Figure 9 As shown, in some embodiments, a sealing ring 27 is connected to the upper ring frame 252, and the upper ventilation cover 26 abuts against the sealing ring 27.

[0043] In this embodiment, the top edge of the upper ring 252 is connected to the sealing ring 27. When the upper ventilation cover 26 is closed, its bottom is in close contact with the sealing ring 27 to achieve a waterproof seal and prevent rainwater from seeping in.

[0044] See Figure 4 , Figure 7 , Figure 10 and Figure 11 As shown, in some embodiments, the upper ring frame 252 is symmetrically connected to a rotating seat 6 on one side, the upper ventilation cover 26 is rotatably connected to the two rotating seats 6, and the upper tempered glass 7 is connected to the middle of the upper ventilation cover 26.

[0045] In this embodiment, two rotating seats 6 are symmetrically fixed on one side of the upper ring frame 252, and one side of the upper ventilation cover 26 is rotatably connected to the two rotating seats 6 through a rotating shaft, so that the upper ventilation cover 26 can be flipped upward around the rotating seats 6 to open; tempered glass 7 is embedded in the middle of the upper ventilation cover 26 to facilitate the entry of optical fiber into the well body.

[0046] See Figure 1 and Figure 4 As shown, in some embodiments, a driving component 8 is also included. The driving component 8 includes a driving ring frame 81 connected to the upright frame 251. Guide slide rods 82 are symmetrically connected to the driving ring frame 81. Sliding blocks 83 are slidably connected to the guide slide rods 82. Rotating balls 84 are rotatably connected to the sliding blocks 83. Top frames 85 are connected to the rotating balls 84. Rotating connecting rods 86 are connected to the upper ventilation cover 26. The top frames 85 are rotatably connected to the rotating connecting rods 86. A lifting cylinder 87 is connected to the driving ring frame 81. A lifting rod 88 is connected to the telescopic end of the lifting cylinder 87. Both ends of the lifting rod 88 are connected to the sliding blocks 83.

[0047] In this embodiment, when the upper ventilation cover 26 needs to be opened, the telescopic end of the lifting cylinder 87 extends, pushing the lifting rod 88 to drive the sliding block 83 to slide along the guide slide rod 82 away from the rotating seat 6. The top frame 85 pushes the upper ventilation cover 26 upward through the rotating connecting rod 86, causing it to flip and open around the rotating seat 6. When closing, the lifting cylinder 87 retracts, the sliding block 83 returns to its original position, and the upper ventilation cover 26 closes under the action of gravity and thrust, fitting against the sealing ring 27. In addition, the lifting cylinder 87 can be selected as an SC63×100-S cylinder, and the model can be changed according to actual usage requirements.

[0048] See Figure 8 As shown, in some embodiments, a protective railing 41 is connected to the inner side of the support ring seat 21, and an inspection entrance 42 is provided on one side of the protective railing 41.

[0049] In this embodiment, a protective railing 41 is connected to the outer perimeter of the maintenance area 4 at the inner edge of the safety protection support ring 21 of the maintenance area 4 to prevent personnel or objects from accidentally falling into the well body 1; a maintenance entrance 42 is opened on one side of the protective railing 41 as a passage for personnel to enter the maintenance area 4. In addition, to further improve safety, an openable and closable guardrail door can be installed at the entrance.

[0050] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, in some embodiments, a staircase storage component 9 is also included. The staircase storage component 9 includes a stair slide rod 91 connected to the support ring seat 21. The stair slide rod 91 is located on one side of the maintenance entrance 42. An upper ladder 92 is slidably connected to the stair slide rod 91. Sliding track grooves 93 are provided on both sides of the upper ladder 92. A stair slider 94 is slidably connected to the sliding track grooves 93. A lower ladder 95 is connected to the stair slider 94. A screw 96 is rotatably connected in the sliding track groove 93 on one side of the upper ladder 92. The stair slider 94 is threadedly connected to the screw 96. A first gear 961 is connected to one end of the screw 96. An auxiliary gear 97 meshes with the first gear 961. The auxiliary gear 97 meshes with a drive gear 98. A drive motor 99 is connected to the drive gear 98.

[0051] In this embodiment, in the non-maintenance state, the upper ladder 92 is stored in the upper part of the stair rail 91, and the lower ladder 95 is retracted inside the upper ladder 92. When maintenance is required, the drive motor 99 is started, and the drive gear 98 drives the auxiliary gear 97 and the first gear 961 to rotate, causing the screw 96 to rotate. The stair slider 94 slides downward along the sliding track groove 93, causing the lower ladder 95 to extend until the bottom of the lower ladder 95 contacts the bottom of the well body 1, forming a complete upper and lower passage. After use, the drive motor 99 reverses, the lower ladder 95 retracts, and the upper ladder 92 slides upward to reset. In addition, the drive motor 99 can be selected according to the depth of the well body 1. When the depth of the well body 1 is small, an SGM7J-04A7C6E model motor is used; when the depth of the well body 1 is large, a GV32 geared motor is used.

[0052] 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 and improvements 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 valve well downstream of a circulating water pump station, characterized in that, The well body (1) and a ventilation component (2) disposed above the well body (1) are characterized in that the ventilation component (2) comprises: Support ring seat (21); Ventilation side plate (22) is connected in a ring shape to the outside of the support ring seat (21); Ventilation holes (23) are provided on the ventilation side plate (22), and there are several ventilation holes (23); A baffle (24) is connected in a ring shape to the support ring seat (21) to divide the support ring seat (21) into a water accumulation area (3) and a maintenance area (4). The central support member (25) is connected to the annular ventilation side plate (22); The upper ventilation cover (26) is rotatably connected to the middle support (25).

2. The valve well after a circulating water pump station as described in claim 1, characterized in that, The ventilation holes (23) are set at an angle of 30°-60° from the outside to the inside and upward along the ventilation side plate (22).

3. The valve well after a circulating water pump station as described in claim 2, characterized in that, A protective cover plate (221) is connected to the ventilation side plate (22), and a cover plate hole (222) is opened on the protective cover plate (221).

4. The valve well after a circulating water pump station as described in claim 2, characterized in that, The ventilation side plate (22) is connected to a drain hole (223), one end of which is connected to the water accumulation area (3), and the other end of which is opened at the bottom of the support ring seat (21).

5. The valve well after a circulating water pump station as described in claim 1, characterized in that, The central support member (25) includes a stand (251) connected to the ventilation side plate (22) and an upper ring frame (252) connected to the top of the stand (251). There are four stands (251), and tempered glass (5) is connected between the four stands (251) at intervals. The upper ring frame (252) is connected to the upper side of the tempered glass (5).

6. The valve well after a circulating water pump station as described in claim 5, characterized in that, A sealing ring (27) is connected to the upper ring frame (252), and the upper ventilation cover (26) abuts against the sealing ring (27).

7. A valve well after a circulating water pump station as described in claim 1, characterized in that, The upper ring frame (252) is symmetrically connected to a rotating seat (6) on one side. The upper ventilation cover (26) is rotatably connected to the two rotating seats (6). The upper tempered glass (7) is connected to the middle of the upper ventilation cover (26).

8. A valve well after a circulating water pump station as described in claim 7, characterized in that, It also includes a drive component (8), which includes a drive ring frame (81) connected to the upright frame (251), a guide slide rod (82) symmetrically connected to the drive ring frame (81), a sliding block (83) slidably connected to the guide slide rod (82), a rotating ball (84) rotatably connected to the sliding block (83), a top frame (85) connected to the rotating ball (84), a rotating connecting rod (86) connected to the upper ventilation cover (26), and the top frame (85) rotatably connected to the rotating connecting rod (86); a lifting cylinder (87) is connected to the drive ring frame (81), a lifting rod (88) is connected to the telescopic end of the lifting cylinder (87), and both ends of the lifting rod (88) are connected to the sliding block (83).

9. A valve well after a circulating water pump station as described in claim 7, characterized in that, The inner side of the support ring seat (21) is connected to a guardrail (41), and a maintenance entrance (42) is provided on one side of the guardrail (41).

10. A valve well downstream of a circulating water pump station as described in claim 1, characterized in that, It also includes a stair storage component (9), which includes a stair slide rod (91) connected to the support ring seat (21). The stair slide rod (91) is located on one side of the maintenance entrance (42). An upper ladder (92) is slidably connected to the stair slide rod (91). Sliding track grooves (93) are provided on both sides of the upper ladder (92). A stair slider (94) is slidably connected to the sliding track groove (93). A lower ladder (95) is connected to the stair slider (94). A screw (96) is rotatably connected in the sliding track groove (93) on one side of the upper ladder (92). The stair slider (94) is threadedly connected to the screw (96). A first gear (961) is connected to one end of the screw (96). An auxiliary gear (97) meshes with the first gear (961). A drive gear (98) meshes with the auxiliary gear (97). A drive motor (99) is connected to the drive gear (98).

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