Internal lake pump station

Abstract

The utility model discloses an internal lake pump station which comprises a concrete water taking well pre-buried and poured on a lakebed surface and a valve well pre-buried on the ground, the upper end of the valve well is parallel to the ground, and a water inlet higher than the lakebed surface is formed in the concrete water taking well. The base formed by pouring concrete is additionally arranged on the bottom wall of an inner cavity of the concrete water taking well, and the umbrella handle type foundation bolt and the rod body on the umbrella handle type foundation bolt are limited through the steel bar set in the base. When vibration generated during operation of the submersible sewage pump is transmitted to the steel bar set and the umbrella handle type foundation bolt, the rod body can effectively transmit loads (such as vertical loads and horizontal loads) borne by the umbrella handle type foundation bolt to the steel bar set or the ground, uniform distribution of the loads is guaranteed, local stress concentration is avoided, and the bearing capacity and durability of the structure are improved. And firm connection between the umbrella handle type foundation bolt and the base is improved, the umbrella handle type foundation bolt can be prevented from loosening and falling off in the using process, and long-term stability and reliability of connection are ensured.

Description

Technical Field

[0001] This utility model relates to the field of pumping station technology, and in particular to an inland lake pumping station. Background Technology

[0002] An underwater pumping station is a type of pumping station in which the pump unit and its supporting equipment are installed completely or mainly underwater and operated. It is typically used in special environments or for specific needs.

[0003] Submersible pump stations are divided into fully submersible and semi-submersible types. In a fully submersible pump station, the entire pump station (including the motor, pump body, and control system) is completely submerged in water and is usually sealed in a waterproof chamber. In a semi-submersible pump station, only the pump body is submerged in water, while the motor and control system are located on a platform above the water surface or on the shore.

[0004] Pumps used in semi-submersible systems will experience vibrations during daily operation due to water flow disturbances, mechanical rotation, and structural characteristics. As the usage time increases, this may cause the foundation to loosen. Continuous vibration will gradually loosen the anchor bolts, leading to a decrease in the connection stiffness between the pump body and the foundation, further exacerbating the vibration. In addition, if the pump station is built on soft soil or in a backfilled area, the vibration may cause soil particles to reorganize, resulting in uneven settlement and further tilting of the pump body.

[0005] In addition, if a submersible sewage pump is used, the submersible sewage pump adopts a large channel or cutting impeller, which can handle sewage containing solid particles (such as silt, fiber, plastic bags, etc.) to prevent clogging. It also adopts a mechanical seal or double mechanical seal design to prevent sewage from seeping into the motor and ensure the reliability of long-term underwater operation.

[0006] However, the operation of submersible sewage pumps also brings greater vibration. If the pump foundation is improved, the following situations are very likely to occur, such as: due to pump body displacement or tilting: shaft alignment failure, bearing and seal rapid damage; pipeline stress concentration: flange leakage or weld cracking; resonance risk: after the foundation stiffness decreases, it may approach the natural frequency of the system, causing violent resonance; overall collapse risk: in extreme cases, complete foundation failure may lead to the overturning of the pump unit. Utility Model Content

[0007] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide an inland lake pumping station that solves the problem that the pump foundation is prone to loosening due to vibration, which is caused by the greater vibration force of the submersible sewage pump compared to the traditional pump body.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an inland lake pumping station, comprising a concrete intake well pre-embedded and cast into the lakebed surface, and a valve well pre-embedded in the ground. The upper end of the valve well is parallel to the ground. The concrete intake well is provided with an inlet higher than the lakebed surface. An anchor bolt assembly is provided inside the concrete intake well. A submersible sewage pump is connected to the upper end of the anchor bolt assembly. The outlet end of the submersible sewage pump is connected to a water supply pipe extending out of the lake surface. The anchor bolt assembly includes a pre-embedded and cast base and a steel reinforcement group provided in the base, as well as an umbrella-handle-shaped anchor bolt inserted into the steel reinforcement group at the lower end. The lower end of the umbrella-handle-shaped anchor bolt is connected to a rod body, and the upper end extends to the upper end of the base and is connected to a baffle plate.

[0009] Furthermore, the steel reinforcement group includes multiple transversely arranged transverse bars and multiple longitudinally arranged longitudinal bars, with the transverse bars overlapping the longitudinal bars and the bar body located between two adjacent longitudinal bars.

[0010] Furthermore, the baffle is horizontally positioned and overlaps the horizontal bar, and each baffle is equipped with at least two umbrella handle-shaped anchor bolts.

[0011] Furthermore, the umbrella handle-type anchor bolt includes a straight portion, a bent portion, and an umbrella handle portion connected in sequence. The straight portion is connected to the baffle, and at least one transverse rod overlaps with the side wall of the umbrella handle portion.

[0012] Furthermore, the water inlet is parallel to the position where the water supply pipe exits the concrete water intake well, and a grating is installed inside the water inlet. The upper end of the concrete water intake well has an opening, and a cover plate overlaps inside the opening.

[0013] Furthermore, a float switch is installed inside the concrete water intake well.

[0014] Furthermore, one end of the water supply pipe extends out of the lake and into the valve well, and a gate valve is installed on the water supply pipe inside the valve well.

[0015] Furthermore, the water supply pipe includes a first part that extends out of the valve well, a second part that is laid on the lakebed, a third part that extends into the valve well, and a fourth part that is connected sequentially between the first part, the second part, and the third part, with elbows connected to both ends of the fourth part.

[0016] Furthermore, the end of the third part that connects to the fourth part is equipped with a rubber flexible joint, and the end that connects to the gate valve is sequentially connected to a check valve, a reducer and a waterproof sleeve.

[0017] Furthermore, the check valve is located between the rubber expansion joint and the gate valve, the reducer is located between the gate valve and the waterproof sleeve, and the waterproof sleeve extends out of the valve well.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, a base is formed by adding concrete pouring to the bottom wall of the concrete intake well cavity. The umbrella-shaped anchor bolts and the rods on them are limited by the steel reinforcement group inside the base. When the vibration generated by the submersible sewage pump is transmitted to the steel reinforcement group and the umbrella-shaped anchor bolts, the rods can effectively transfer the load (such as vertical load, horizontal load, etc.) borne by the umbrella-shaped anchor bolts to the steel reinforcement group or the ground, ensuring uniform load distribution, avoiding local stress concentration, improving the load-bearing capacity and durability of the structure, and enhancing the firm connection between the umbrella-shaped anchor bolts and the base. This can prevent the umbrella-shaped anchor bolts from loosening and falling off during use, ensuring the long-term stability and reliability of the connection.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a diagram illustrating Embodiment 1 of this utility model.

[0021] Figure 2 This is a top view of Embodiment 1 of this utility model.

[0022] Figure 3 This is a diagram showing the inner cavity of a concrete water intake well according to Embodiment 1 of this utility model.

[0023] Figure 4 This is a three-dimensional view of the anchor bolt assembly of Embodiment 1 of this utility model.

[0024] Figure 5 This is a diagram showing the inner cavity of the anchor bolt assembly according to Embodiment 1 of this utility model.

[0025] Explanation of reference numerals in the attached diagram:

[0026] 10. Concrete water intake well, 11. Inlet, 111. Grille, 12. Anchor bolt assembly, 121. Base, 122. Reinforcing bar assembly, 122. Horizontal bar, 1221. Longitudinal bar, 1222. Umbrella handle type anchor bolt, 123. Straight part, 1231. Bending part, 1232. Umbrella handle part, 1233. Rod body, 124. Baffle plate, 125. Cover plate, 13. Float switch, 14.

[0027] Valve well 20;

[0028] Submersible sewage pump 30;

[0029] Water supply pipe 40, Part 1 41, Part 2 42, Part 3 43, Rubber expansion joint 431, Check valve 432, Reducer 433, Waterproof sleeve 434, Part 44, Elbow pipe 45;

[0030] Gate valve 50. Detailed Implementation

[0031] Please refer to Figure 1-5 As shown, it illustrates the specific structure of a preferred first embodiment of the present invention, which is an inland lake pumping station. It includes a concrete intake well 10 pre-embedded and cast into the lakebed surface, and a valve well 20 pre-embedded in the ground. The upper end of the valve well 20 is parallel to the ground. The concrete intake well 10 is provided with an inlet 11 that is higher than the lakebed surface. An anchor bolt assembly 12 is provided in the concrete intake well 10. The upper end of the anchor bolt assembly 12 is connected to a submersible sewage pump 30. The outlet end of the submersible sewage pump 30 is connected to a water supply pipe 40 that extends out of the lake surface. The anchor bolt assembly 12 includes a base 121 pre-embedded and cast into the ground, a steel bar group 122 provided in the base 121, and an umbrella handle-shaped anchor bolt 123 inserted into the steel bar group 122 at its lower end. The lower end of the umbrella handle-shaped anchor bolt 123 is connected to a rod body 124, and the upper end extends to the upper end of the base 121 and is connected to a baffle plate 125. The inlet 11 is higher than the lakebed to reduce the amount of sludge or other impurities in the water when it enters the concrete intake well 10. A concrete base 121 is formed by pouring concrete into the bottom wall of the concrete intake well 10. The umbrella-shaped anchor bolt 123 and its rod 124 are limited by the steel reinforcement group 122 in the base 121. When the vibration generated by the submersible pump 30 is transmitted to the steel reinforcement group 122 and the umbrella-shaped anchor bolt 123, the rod 124 can effectively transfer the load (such as vertical load, horizontal load, etc.) borne by the umbrella-shaped anchor bolt 123 to the steel reinforcement group 122 or the ground, ensuring uniform load distribution, avoiding local stress concentration, improving the load-bearing capacity and durability of the structure, and enhancing the firm connection between the umbrella-shaped anchor bolt 123 and the base 121. This can prevent the umbrella-shaped anchor bolt 123 from loosening and falling off during use, ensuring the long-term stability and reliability of the connection.

[0032] For example, the reinforcing bar assembly 122 includes multiple transversely arranged transverse bars 1221 and multiple longitudinally arranged longitudinal bars 1222, with the transverse bars 1221 overlapping the longitudinal bars 1222, and the bar body 124 disposed between two adjacent longitudinal bars 1222. Both the transverse bars 1221 and the longitudinal bars 1222 have three sets, arranged at equal intervals at the top, middle, and bottom, and pre-embedded in the base 121. After the base 121 is cast, it further strengthens the firm connection between the reinforcing bar assembly 122 and the longitudinal bars 124 and the base 121, improving the compressive strength of the base 121 and preventing damage to the base 121 under load.

[0033] It should be noted that the rod 124 is located between the two sets of transverse rods 1221 and longitudinal rods 1222 in the middle and lower part, so as to increase the umbrella-handle type anchor bolts 123 connected to the rod 124 to effectively transfer the load to the steel reinforcement group 122 or the ground, ensure the uniform distribution of the load, avoid local stress concentration, and improve the load-bearing capacity and durability of the structure.

[0034] For example, the baffle 125 is arranged laterally and overlaps the horizontal bar 1221, and each baffle 125 is equipped with at least two umbrella handle-shaped anchor bolts 123. There are two baffles 125, which are arranged opposite each other on both sides of the upper end of the base 121, and two umbrella handle-shaped anchor bolts 123 are installed on each baffle 125. There are four umbrella handle-shaped anchor bolts 123 on the two baffles 125, which form a square. After being connected to the submersible sewage pump 30, it can better distribute the load caused by the vibration of the submersible sewage pump 30 during operation.

[0035] For example, the umbrella handle-shaped anchor bolt 123 includes a straight portion 1231, a bent portion 1232, and an umbrella handle portion 1233 connected in sequence. The straight portion 1231 is connected to a baffle 125, and at least one transverse rod 1221 overlaps with the side wall of the umbrella handle portion 1233. The bent portion 1232 can increase the contact area between the umbrella handle-shaped anchor bolt 123 and the concrete in the base 121, thereby improving the stability of the umbrella handle-shaped anchor bolt 123 and preventing it from loosening or slipping under stress. In addition, the bent portion 1232 can provide additional pull-out resistance, preventing the umbrella handle-shaped anchor bolt 123 from being pulled out when subjected to upward pulling force, and distributing the stress generated under stress, reducing stress concentration.

[0036] For example, the inlet 11 is parallel to the position where the water supply pipe 40 exits the concrete intake well 10, and a grating 111 is provided inside the inlet 11. The upper end of the concrete intake well 10 has an opening, and a cover plate 13 overlaps inside the opening. The grating 111 can prevent impurities in the lake from entering the concrete intake well 10, thereby improving the service life of the submersible pump 30 inside the concrete intake well 10. The upper opening of the concrete intake well 10 and the cover plate 13 overlapping the opening facilitate the operator to repair the damaged submersible pump 30.

[0037] For example, a float switch 14 is provided inside the concrete water intake well 10. The float switch 14 and the submersible sewage pump 30 work together to automatically start and stop according to the water level without manual intervention. This method is existing technology and will only be briefly described here.

[0038] For example, one end of the water supply pipe 40 extending out of the lake surface extends into the valve well 20, and the water supply pipe 40 is provided with a gate valve 50 located in the valve well 20. The gate valve 50 includes a valve body, a valve cover, a gate (wedge-shaped or parallel), a valve stem (rising or non-rising), a handwheel, or an actuator.

[0039] Working principle: Rotating the handwheel or driving the valve stem causes the gate to move up and down along the valve seat sealing surface, thus opening or closing the valve. When fully open, the gate is completely disengaged from the fluid passage, resulting in minimal flow resistance; when fully closed, the gate presses against the sealing surface, blocking the flow of the medium. Since the gate valve 50 is existing technology, it will only be briefly described here.

[0040] For example, the water supply pipe 40 includes a first section 41 extending into the valve well 20, a second section 42 laid on the lakebed, a third section 43 extending into the valve well 20, and a fourth section 44 sequentially connected between the first section 41, the second section 42, and the third section 43. Elbow pipes 45 are connected to both ends of the fourth section 44. This multi-section configuration of the water supply pipe 40 better adapts to the lake environment.

[0041] For example, one end of the third part 43 connecting to the fourth part 44 is provided with a rubber expansion joint 431, and the other end connecting to the gate valve 50 is sequentially connected with a check valve 432, a reducer 433, and a waterproof sleeve 434. The rubber expansion joint 431 can isolate the vibration generated by the operation of equipment such as pumps and compressors, and reduce the impact on the gate valve 50 and the third part 43.

[0042] The check valve 432 is located between the rubber expansion joint 431 and the gate valve 50, the reducer 433 is located between the gate valve 50 and the waterproof sleeve 434, and the waterproof sleeve 434 extends out of the valve well 20.

[0043] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An inland lake pumping station, characterized in that: The system includes a concrete intake well (10) pre-embedded in the lakebed and a valve well (20) pre-embedded in the ground. The upper end of the valve well (20) is parallel to the ground. The concrete intake well (10) is provided with an inlet (11) higher than the lakebed. An anchor bolt assembly (12) is provided inside the concrete intake well (10). A submersible sewage pump (30) is connected to the upper end of the anchor bolt assembly (12). The outlet end of the submersible sewage pump (30) is... A water supply pipe (40) with one end extending out of the lake surface is connected; the anchor bolt assembly (12) includes a base (121) pre-embedded and cast, a steel bar group (122) set in the base (121), and an umbrella handle-shaped anchor bolt (123) inserted into the steel bar group (122) at the lower end. The umbrella handle-shaped anchor bolt (123) is connected to a rod body (124) at the lower end and extends to the upper end of the base (121) and is connected to a baffle plate (125).

2. The inland lake pumping station according to claim 1, characterized in that: The steel reinforcement group (122) includes multiple transversely arranged transverse bars (1221) and multiple longitudinally arranged longitudinal bars (1222), with the transverse bars (1221) overlapping the longitudinal bars (1222), and the bar body (124) is located between two adjacent longitudinal bars (1222).

3. The inland lake pumping station according to claim 2, characterized in that: The baffle (125) is arranged horizontally and overlaps the horizontal bar (1221), and each baffle (125) is equipped with at least two umbrella handle-shaped anchor bolts (123).

4. A lake pumping station according to claim 2, characterized in that: The umbrella handle-type anchor bolt (123) includes a straight portion (1231), a bent portion (1232) and an umbrella handle portion (1233) connected in sequence. The straight portion (1231) is connected to a baffle (125), and at least one of the transverse rods (1221) overlaps with the side wall of the umbrella handle portion (1233).

5. A lake pumping station according to claim 1, characterized in that: The water inlet (11) is parallel to the position where the water supply pipe (40) passes through the concrete water intake well (10), and a grid (111) is provided inside the water inlet (11). The upper end of the concrete water intake well (10) has an opening, and a cover plate (13) overlaps inside the opening.

6. A lake pumping station according to claim 1, characterized in that: The concrete water intake well (10) is equipped with a float switch (14).

7. A lake pumping station according to claim 1, characterized in that: The water supply pipe (40) extends from one end of the lake surface into the valve well (20), and the water supply pipe (40) is equipped with a gate valve (50) located in the valve well (20).

8. A lake pumping station according to claim 7, characterized in that: The water supply pipe (40) includes a first part (41) extending out of the valve well (20), a second part (42) laid on the lake bottom surface, a third part (43) extending into the valve well (20), and a fourth part (44) connected in sequence between the first part (41), the second part (42), and the third part (43), with elbow pipes (45) connected to both ends of the fourth part (44).

9. A lake pumping station according to claim 8, characterized in that: The third part (43) is connected to the fourth part (44) at one end with a rubber flexible joint (431), and the end of the gate valve (50) is connected in sequence with a check valve (432), a reducer (433) and a waterproof sleeve (434).

10. An inland lake pumping station according to claim 9, characterized in that: The check valve (432) is located between the rubber expansion joint (431) and the gate valve (50), the reducer (433) is located between the gate valve (50) and the waterproof sleeve (434), and the waterproof sleeve (434) extends out of the valve well (20).

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