Water taking device of underwater spring water pump station

Abstract

The invention relates to the technical field of underwater spring water pump stations, in particular to a water taking device of an underwater spring water pump station. Comprising an underwater spring chamber, a sleeve, a submersible pump and a water outlet pipe, and the underwater spring chamber is arranged at the natural spring water gushing position, located below the water level of external water and used for collecting spring water; the sleeve is inserted into the top of the underwater spring chamber and communicates with the interior of the underwater spring chamber, and the top end of the sleeve extends upwards to be higher than the water level of external water to form a dry type operation space; the submersible pump is arranged in the sleeve, and a pump body of the submersible pump is located in the underwater spring chamber. And one end of the water outlet pipe is connected with a water outlet of the submersible pump, and the other end of the water outlet pipe upwards extends out of the sleeve along the sleeve. A dry-type operation space is formed through the casing pipe higher than the outer water level, the submersible pump can be integrally lifted without underwater operation during overhauling, safety risks are thoroughly eliminated, and efficiency is improved. The spring chamber is always closed through the isolation effect of the sleeve, external water is prevented from entering, the purity of spring water is ensured, and safe, efficient and clean operation is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of underwater spring pumping stations, and specifically to a water intake device for an underwater spring pumping station. Background Technology

[0002] Currently, underwater pumping stations are commonly used water intake facilities in the development and utilization of natural spring water resources. A typical underwater spring pumping station usually consists of a collection chamber located at the springhead, and a pump unit directly submerged inside the chamber. During normal operation, the collection chamber collects spring water and provides a stable water intake environment for the pump.

[0003] However, this traditional water intake structure has significant limitations in practical applications. Since the spring chamber and pumps are located below the external water level year-round, underwater operations by divers are necessary for pump maintenance or replacement. This manual underwater maintenance method not only carries high safety risks, is difficult to implement, and inefficient, but more importantly, the disassembly and assembly of the pumps inevitably leads to communication between the spring chamber and the external water environment. This can easily cause external water to enter the spring chamber, mixing the spring water with the external water, thus affecting or even destroying the original purity of the spring water and causing serious problems for subsequent water treatment and use. Summary of the Invention

[0004] This invention addresses the technical problems in underwater spring pumping stations where pump maintenance relies on divers for underwater operations, resulting in high safety risks, significant construction difficulties, low efficiency, and the potential for spring water to mix with external water during disassembly and assembly, thus affecting water purity.

[0005] To solve the above problems, the present invention provides an underwater spring water pumping station water intake device, comprising: An underwater spring chamber is located at the outlet of a natural spring and below the external water level, and is used to collect spring water. A sleeve is inserted into the top of the underwater spring chamber and communicates with the interior of the underwater spring chamber. The top end of the sleeve extends upward to a level higher than the external water level, forming a dry operating space. A submersible pump, wherein the submersible pump is disposed inside the casing and the pump body of the submersible pump is located in the underwater spring chamber; The water outlet pipe is suspended inside the sleeve, with one end connected to the outlet of the submersible pump and the other end extending upward along the sleeve to the outside of the sleeve.

[0006] Preferably, it further includes a sealing assembly, which includes a first sealing element and a second sealing element. The first sealing element is disposed at the connection between the sleeve and the underwater spring chamber to prevent external water from seeping into the underwater spring chamber through the gap between the outer wall of the sleeve and the underwater spring chamber. The second seal is disposed at the top of the sleeve and is used to seal the circumferential gap between the upper end of the sleeve and the outlet pipe.

[0007] Preferably, the first sealing element is a water-stop ring, which is sleeved outside the sleeve and embedded in the concrete top wall of the underwater spring chamber.

[0008] Preferably, the upper end of the sleeve is provided with a flange, the second sealing element is an annular structure, the second sealing element is sleeved on the outside of the water outlet pipe and fixed to the flange by bolts, and is used to seal the circumferential gap between the upper end of the sleeve and the water outlet pipe.

[0009] Preferably, the upper end face of the second seal is provided with a support seat, and the support seat is provided with a pipe clamp. The pipe clamp is clamped to the outside of the water outlet pipe. The support seat and the pipe clamp cooperate to suspend the water outlet pipe inside the sleeve and to transfer the load of the water outlet pipe to the sleeve through the second seal.

[0010] Preferably, a first sealing gasket and a second sealing gasket are provided between the flange and the second sealing element. The first sealing gasket is a flange sealing gasket, which is used to withstand the water pressure inside the water outlet pipe. The second sealing gasket is an elastic rubber sealing gasket, which is used to compensate for the deformation of the connection surface and provide auxiliary sealing.

[0011] Preferably, an expansion strip is provided in the circumferential gap between the water outlet pipe and the sleeve, and the expansion strip is made of a water-swellable material.

[0012] Preferably, the lower end of the sleeve is provided with a perforated tube, and the perforated tube has a plurality of water inlet holes evenly distributed on its wall.

[0013] Preferably, a pipe support is provided on the top of the underwater spring chamber to support and fix the sleeve.

[0014] Preferably, the submersible pump is detachably connected to the outlet pipe, and the outer diameter of the submersible pump is smaller than the inner diameter of the sleeve.

[0015] The beneficial effects of this invention are: This invention discloses an underwater spring pumping station water intake device. A sleeve is inserted into the top of the underwater spring chamber and communicates with its interior. Simultaneously, the top of the sleeve extends upwards above the external water level, meaning the upper end of the sleeve breaks through the external water level interface and is exposed to the atmosphere. This creates a three-section spatial structure—connecting to the water source, passing through the water body, and reaching the atmosphere—forming a columnar space inside the sleeve that is isolated from the external water, i.e., the dry operating space. The formation of this dry operating space does not rely on any active drainage or air compression equipment, but rather on a rational structural design that utilizes the balance between atmospheric pressure and water static pressure to achieve stable control of the air-water interface. When the submersible pump needs maintenance or replacement, maintenance personnel do not need to enter the water; they can simply lift and remove the submersible pump along with the outlet pipe from above the sleeve. This completely solves the problems of high safety risks, high construction difficulty, and low work efficiency associated with traditional underwater maintenance methods. Meanwhile, due to the isolation effect of the casing, the underwater spring chamber remains sealed during the submersible pump's lifting process, effectively preventing external water from entering the chamber and ensuring complete isolation between the spring water and external water, thus guaranteeing that the purity of the spring water remains unaffected. Therefore, this invention improves maintenance convenience and operational safety while fundamentally solving the water pollution problem that is difficult to avoid with traditional water intake structures, achieving safe, efficient, and clean operation of the underwater spring pumping station. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an underwater spring water pumping station water intake device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the water outlet pipe suspended inside the sleeve in one embodiment of the present invention.

[0017] Explanation of reference numerals in the attached drawings: 1-Underwater spring chamber, 2-Casing, 3-Submersible pump, 4-Outlet pipe, 5-Expansion strip, 6-First seal, 7-Pipe support, 8-Second seal, 21-Swivel pipe, 81-Pipe clamp, 82-Flange, 83-Support seat. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or components, and are not intended to limit the order of functions performed by these devices, modules, or components or their interdependencies.

[0020] It should be noted that the terms "one" and "more" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] To address the problems existing in the aforementioned related technologies, the present invention provides an underwater spring water pumping station water intake device.

[0022] See Figure 1 and Figure 2 This invention provides an underwater spring water pumping station water intake device, including an underwater spring chamber 1, a sleeve 2, a submersible pump 3, and an outlet pipe 4. The underwater spring chamber 1 is located at the natural spring water outlet and below the external water level, for collecting spring water. The sleeve 2 is inserted into the top of the underwater spring chamber 1 and communicates with the interior of the underwater spring chamber 1. The top of the sleeve 2 extends upward to above the external water level, forming a dry operating space. The submersible pump 3 is located inside the sleeve 2, and the pump body of the submersible pump 3 is located inside the underwater spring chamber 1. The outlet pipe 4 is suspended inside the sleeve 2, and one end of the outlet pipe 4 is connected to the outlet of the submersible pump 3, and the other end extends upward along the sleeve 2 to the outside of the sleeve 2.

[0023] It should be noted that the top elevation of the casing 2 must be higher than the highest external water level to prevent backflow of water into the dry operating space during flood season; the vertical height of the casing 2 must provide sufficient clearance for operators to facilitate personnel access and equipment operation. By installing a casing 2 extending upwards above the external water level at the top of the underwater spring chamber 1, and suspending the outlet pipe 4 and submersible pump 3 inside the casing 2, a unique dry operating space is formed. When the submersible pump 3 needs maintenance or replacement, maintenance personnel do not need to enter the water; they can simply lift and remove the submersible pump 3 along with the outlet pipe 4 from above the casing 2, completely solving the problems of high safety risks, high construction difficulty, and low work efficiency associated with traditional underwater maintenance methods. At the same time, due to the isolation effect of the casing 2, the underwater spring chamber 1 remains closed during the lifting of the submersible pump 3, effectively preventing external water from entering the interior of the underwater spring chamber 1, ensuring complete isolation between the spring water and external water, and thus ensuring that the purity of the spring water quality is not affected. Therefore, while improving maintenance convenience and operational safety, this invention also fundamentally solves the water pollution problem that is difficult to avoid in traditional water intake structures, and realizes the safe, efficient and clean operation of underwater spring pumping stations.

[0024] In one embodiment of the present invention, a sealing assembly is further included. The sealing assembly includes a first sealing member 6 and a second sealing member 8. The first sealing member 6 is disposed at the connection between the sleeve 2 and the underwater spring chamber 1 to prevent external water from seeping into the underwater spring chamber 1 through the gap between the outer wall of the sleeve 2 and the underwater spring chamber 1. The second sealing member 8 is disposed at the top of the sleeve 2 to seal the circumferential gap between the upper port of the sleeve 2 and the water outlet pipe 4.

[0025] It should be noted that by adding the first sealing element 6 and the second sealing element 8, two reliable sealing lines are constructed between the sleeve 2 and the underwater spring chamber 1, and between the top of the sleeve 2 and the outlet pipe 4. The first sealing element 6 is embedded between the concrete top wall of the underwater spring chamber 1 and the outer wall of the sleeve 2, which can effectively seal the leakage channel of external water along the contact surface between the sleeve 2 and the spring chamber structure; the second sealing element 8 is set between the upper end of the sleeve and the outlet pipe, sealing off the circumferential gap that may enter from the top. These two seals, together with the design of the sleeve 2 being higher than the external water level, ensure that the underwater spring chamber 1 is always in a sealed state isolated from the external water, whether during the normal operation of the submersible pump 3 or when the submersible pump 3 needs to be lifted for maintenance. On the one hand, this completely avoids the problem of external water mixing and spring water pollution caused by the opening of underwater spring chamber 1, which is a problem in traditional maintenance methods, thus ensuring the original purity of the water quality. On the other hand, relying on the dry operating space of casing 2, maintenance personnel can complete all operations at the top without diving, eliminating the safety hazards of underwater operations and significantly improving the convenience and safety of pump station maintenance. While ensuring the quality of the intake water, it has achieved a fundamental optimization of the operation and maintenance of the pump station.

[0026] In one embodiment of the present invention, the first sealing member 6 is a water-stop ring, which is sleeved outside the sleeve 2 and embedded in the concrete top wall of the underwater spring chamber 1.

[0027] It should be noted that the water-stop ring can adopt a flexible waterproof sleeve structure. After being fitted onto the outer wall of sleeve 2, it is entirely embedded within the concrete top wall of the underwater spring chamber 1, achieving a reliable seal at the connection between sleeve 2 and the underwater spring chamber 1. This integrated embedded structure ensures a tight bond between the water-stop ring and the concrete, completely sealing the microscopic seepage channels between the outer wall of sleeve 2 and the concrete, effectively preventing water seepage problems that may be caused by micro-cracks due to concrete shrinkage or long-term operation. Simultaneously, the water-stop ring's embedding position in the concrete is precisely at the critical point where sleeve 2 passes through the top wall of the underwater spring chamber 1, directly blocking the path of external water seeping down the outer wall of sleeve 2 into the underwater spring chamber 1, fundamentally eliminating the potential for leakage at the connection point in traditional water intake structures. Therefore, based on the design of sleeve 2 being higher than the external water level, the isolation barrier between the spring chamber and the external water is further strengthened, ensuring that the spring chamber remains absolutely isolated from external water under any operating conditions, providing a reliable guarantee for the long-term stability of the spring water quality.

[0028] In one embodiment of the present invention, the upper end of the sleeve 2 is provided with a flange 82, and the second sealing member 8 is an annular structure. The second sealing member 8 is sleeved on the outside of the water outlet pipe 4 and is fixed to the flange 82 by bolts, for sealing the circumferential gap between the upper end of the sleeve 2 and the water outlet pipe 4.

[0029] It should be noted that by setting a flange 82 at the upper end of the sleeve 2 and designing the second sealing element 8 as a ring structure that is fixed by bolts, a reliable seal and detachable connection between the top of the sleeve 2 and the outlet pipe 4 are achieved. When the second sealing element 8 is sleeved on the outside of the outlet pipe 4 and fastened to the flange 82 by bolts, its ring structure can tightly fit the outer wall of the outlet pipe 4 and the inner wall of the sleeve 2, effectively sealing the circumferential gap at the upper end of the sleeve 2 and preventing external water from seeping into the inside of the sleeve 2 from the top under normal operating conditions. At the same time, this flange bolt connection method gives the second sealing element 8 good disassembly and assembly. When it is necessary to repair the submersible pump 3, the second sealing element 8 can be separated from the outlet pipe 4 simply by loosening the bolts, making it easy to lift and remove the submersible pump 3 and the outlet pipe 4 as a whole from the sleeve 2. In addition, the second sealing element 8 can also provide auxiliary support and radial limit for the outlet pipe 4 when locked, working together with the subsequent support structure to maintain the suspended state of the outlet pipe 4 within the sleeve 2. Therefore, while ensuring the top sealing performance, the convenience of maintenance operations is also taken into account, providing a reliable guarantee for the realization of the dry maintenance function.

[0030] In one embodiment of the present invention, the upper end face of the second sealing member 8 is provided with a support seat, and the support seat is provided with a pipe clamp 81. The pipe clamp 81 is clamped to the outside of the water outlet pipe 4. The support seat and the pipe clamp 81 cooperate to suspend the water outlet pipe 4 inside the sleeve 2 and to transfer the load of the water outlet pipe 4 to the sleeve 2 through the second sealing member 8.

[0031] It should be noted that a radial suspension support structure for the water outlet pipe 4 is constructed by setting a support base on the upper end face of the second sealing element 8 and installing a pipe clamp 81 on the support base to clamp the water outlet pipe body. After the pipe clamp 81 clamps the water outlet pipe, it can limit the radial displacement of the water outlet pipe 4 within the sleeve 2, preventing it from colliding or rubbing against the inner wall of the sleeve 2 due to water flow impact or pump vibration during operation. At the same time, it ensures that the water outlet pipe always remains in the center position of the sleeve 2, forming a stable suspension state. The cooperation between the support base and the pipe clamp 81 transfers the weight of the water outlet pipe 4 and the dynamic load generated during operation to the support base through the pipe clamp 81, and then smoothly to the sleeve and flange 82 through the second sealing element 8, with the sleeve 2 ultimately bearing the entire load. This load transfer path is clear and reasonable, avoiding fatigue damage or loosening of the water outlet pipe 4 and its connecting parts due to uneven stress, and improving the reliability and stability of the device in long-term operation. Therefore, based on the realization of dry maintenance function, the fixing method of water outlet pipe 4 in sleeve 2 has been further optimized, which provides an effective guarantee for the stable and safe operation of the entire water intake device.

[0032] In one embodiment of the present invention, a first sealing gasket and a second sealing gasket are provided between the flange 82 and the second sealing member 8. The first sealing gasket is a flange sealing gasket, which is used to withstand the water pressure inside the water outlet pipe 4; the second sealing gasket is an elastic rubber sealing gasket, which is used to compensate for the deformation of the connection surface and provide auxiliary sealing.

[0033] It should be noted that by setting a first sealing gasket and a second sealing gasket between flange 82 and the second sealing element 8, a double-layer sealing structure is constructed, improving the sealing reliability of the top of sleeve 2. The first sealing gasket is a flange sealing gasket, whose material and structural design can withstand the water pressure inside the outlet pipe 4, forming a main sealing barrier under normal operating conditions, effectively preventing pressurized water in the pipe from leaking along the flange connection surface. The second sealing gasket is an elastic rubber sealing gasket, which has good elasticity and deformation compensation capabilities, can fill the microscopic unevenness of the connection surface between flange 82 and the second sealing element 8, and adapt to the small deformation caused by temperature changes or long-term operation, providing a continuous auxiliary sealing effect. The two sealing gaskets work together and complement each other, ensuring that the connection surface between flange 82 and the second sealing element 8 always maintains a reliable sealing state, even under long-term operation or fluctuating operating conditions, completely blocking the potential channel for external water to seep in along the top of sleeve 2. Therefore, based on the dry operating space formed by the casing 2 being higher than the external water level, the overall sealing performance of the water intake device is further enhanced by the double-layer sealing design at the top, providing multiple guarantees for the permanent isolation of spring water from external water.

[0034] In one embodiment of the present invention, an expansion strip 5 is provided in the circumferential gap between the water outlet pipe 4 and the sleeve 2, and the expansion strip 5 is made of a water-swellable material.

[0035] It should be noted that by setting an expansion strip 5 made of water-swellable material in the circumferential gap between the outlet pipe 4 and the sleeve 2, an auxiliary sealing and support structure is constructed inside the sleeve 2. In the installed state, the expansion strip 5 is in contact with the outer wall of the outlet pipe 4 and the inner wall of the sleeve 2. When there is a trace amount of moisture in the environment, the expansion strip 5 absorbs water and expands radially, further filling the circumferential gap between the outlet pipe 4 and the sleeve 2, forming a tight fit. This provides an auxiliary sealing barrier outside the second seal 8, effectively preventing external water from seeping downwards into the spring chamber along the inside of the sleeve 2. Simultaneously, the radial pressure generated by the expansion strip 5 after expansion provides elastic support and limitation for the outlet pipe 4, buffering the vibration generated during the operation of the submersible pump 3, reducing the relative displacement between the outlet pipe 4 and the sleeve 2, and avoiding loosening or fatigue damage caused by long-term vibration. The water-swellable characteristic of the expansion strip 5 allows it to automatically adjust its sealing performance according to actual working conditions, maintaining an appropriate gap for easy installation and disassembly in a dry state, and automatically enhancing the sealing effect when exposed to water. Thus, the expansion strip 5 further enhances the sealing reliability and operational stability of the sleeve 2, forming a multi-level protection system together with the second sealing element 8, providing dual protection for the long-term purity of the spring water and the stable operation of the water pump.

[0036] In one embodiment of the present invention, the lower end of the sleeve 2 is provided with a perforated tube 21, and a plurality of water inlet holes are evenly provided on the tube wall of the perforated tube 21.

[0037] Furthermore, the bottom of the perforated pipe 21 is supported on the bottom wall of the underwater spring chamber 1. The diameter of the inlet holes is 10-20 mm, and they are arranged in a staggered manner. The total opening area of ​​the perforated pipe 21 is 2-4 times larger than the cross-sectional area of ​​the sleeve 2.

[0038] It should be noted that by setting a perforated pipe 21 at the lower end of the sleeve 2 and optimizing the design of the inlet hole diameter, arrangement, and opening area, a water inlet structure with both flow guiding and filtration functions is constructed. The inlet hole diameter of the perforated pipe 21 is controlled within the range of 10-20mm, which can effectively intercept larger impurities such as sand and gravel that may be carried in the spring water while ensuring smooth entry. This prevents debris from entering the submersible pump 3 and causing impeller wear or flow channel blockage, thereby improving the reliability and service life of the submersible pump 3. The staggered arrangement of the inlet holes allows the spring water to enter evenly along the length of the perforated pipe, avoiding excessively high local flow velocities that could form eddies or generate excessive head loss. This ensures that the spring water flows evenly from different heights in the underwater spring chamber 1 into the sleeve 2, making full use of the effective regulating volume of the spring chamber. The total opening area of ​​the perforated pipe 21 is set to be 2 to 4 times larger than the cross-sectional area of ​​the sleeve 2, which significantly reduces the water flow resistance of the inlet channel. This allows spring water to smoothly enter the sleeve 2 with minimal head loss, ensuring sufficient water intake even when the spring water level is low or the submersible pump 3 is operating at high flow rates. This prevents cavitation of the submersible pump 3 or insufficient water intake due to excessive inlet resistance. Thus, through the meticulous design of the perforated pipe 21, while ensuring smooth and uniform water intake, effective protection of the submersible pump 3 is achieved, significantly improving the stability and reliability of the water intake device and providing technical support for the efficient and sustainable utilization of spring water resources.

[0039] In one embodiment of the present invention, a pipe support 7 is provided on the top of the underwater spring chamber 1 to support the fixed sleeve 2.

[0040] It should be noted that by installing a pipe support 7 at the top of the underwater spring chamber 1, reliable support and fixation are provided for the casing 2. The pipe support 7 is firmly connected to the concrete structure of the underwater spring chamber 1, securely positioning the casing 2 at the top of the spring chamber. This effectively bears the vertical load of the casing 2 and its internal equipment (including the submersible pump 3, outlet pipe 4, etc.), preventing the casing 2 from sinking or shifting due to its own weight or external water flow impact over a long period. Simultaneously, the pipe support 7 can resist the vibration generated during pump operation and the horizontal thrust exerted on the casing 2 by external water flow, ensuring that the casing 2 always maintains a stable vertical state and preventing the top sealing structure from loosening or being damaged due to casing 2 swaying. Furthermore, the installation of the pipe support 7 provides an accurate installation benchmark for the casing 2, ensuring the relative positional accuracy between the casing 2 and the underwater spring chamber 1, facilitating accurate alignment of the bottom of the perforated pipe 21 with the bottom wall of the spring chamber. Therefore, the stable fixation of the casing 2 by the pipe support 7 provides structural protection for the long-term safe operation of the entire water intake device, ensuring the reliable realization of the dry maintenance function.

[0041] In one embodiment of the present invention, the submersible pump 3 is detachably connected to the outlet pipe 4, and the outer diameter of the submersible pump 3 is smaller than the inner diameter of the sleeve 2.

[0042] It should be noted that by detachably connecting the submersible pump 3 to the outlet pipe 4 and limiting the outer diameter of the submersible pump 3 to be smaller than the inner diameter of the sleeve 2, a structural basis is provided for realizing the dry maintenance function. The detachable connection between the submersible pump 3 and the outlet pipe 4 ensures that they can maintain a firm connection under normal operating conditions, ensuring smooth power transmission and water output, while also allowing for easy separation or disassembly when maintenance is required. The dimensional design of the submersible pump 3's outer diameter being smaller than the sleeve 2's inner diameter creates a lifting channel inside the sleeve 2 that allows the submersible pump 3 and the outlet pipe 4 to pass through as a whole, ensuring that the submersible pump 3 can be lifted upwards and removed from the sleeve 2 along with the outlet pipe 4 without obstruction.

[0043] When the submersible pump needs maintenance or replacement, maintenance personnel do not need to enter the water. The submersible pump 3 and outlet pipe 4 are lifted as a whole. The connection between the submersible pump 3 and outlet pipe 4 can be disconnected above the casing 2, allowing the submersible pump 3 to be moved to the dry operating space at the top of the casing 2 for maintenance. Throughout the lifting process, because the submersible pump 3 remains inside the casing 2, the underwater spring chamber 1 remains sealed, effectively preventing external water from entering the spring chamber and completely eliminating the safety risks and water pollution hazards caused by diving operations in traditional maintenance methods. Therefore, through the optimized design of detachable connections and dimensional fit, the maintenance work of the submersible pump 3 is transferred from underwater to above water, ensuring the safety of operators and the purity of the spring water while improving the convenience and efficiency of pump station maintenance.

[0044] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. An underwater intake for a spring pump station, characterized in that include: The underwater spring chamber (1) is located at the natural spring outlet and below the external water level, and is used to collect spring water. The sleeve (2) is inserted into the top of the underwater spring chamber (1) and communicates with the interior of the underwater spring chamber (1). The top of the sleeve (2) extends upward to a level higher than the external water level to form a dry operating space. Submersible pump (3), the submersible pump (3) is located inside the casing (2), and the pump body of the submersible pump (3) is located inside the underwater spring chamber (1); Water outlet pipe (4) is suspended inside the sleeve (2), and one end of the water outlet pipe (4) is connected to the outlet of the submersible pump (3), and the other end extends upward along the sleeve (2) to the outside of the sleeve (2).

2. The intake arrangement for an underwater spring pumping station according to claim 1, characterized in that It also includes a sealing assembly, which includes a first sealing element (6) and a second sealing element (8). The first sealing element (6) is disposed at the connection between the sleeve (2) and the underwater spring chamber (1) to block external water from seeping into the underwater spring chamber (1) through the gap between the outer wall of the sleeve (2) and the underwater spring chamber (1). The second sealing element (8) is disposed on the top of the sleeve (2) and is used to seal the circumferential gap between the upper port of the sleeve (2) and the water outlet pipe (4).

3. The underwater spring water pumping station water intake device according to claim 2, characterized in that, The first sealing element (6) is a water-stop ring, which is sleeved outside the sleeve (2) and embedded in the concrete top wall of the underwater spring chamber (1).

4. The underwater spring water pumping station water intake device according to claim 3, characterized in that, The upper end of the sleeve (2) is provided with a flange (82). The second sealing element (8) is an annular structure. The second sealing element (8) is sleeved on the outside of the water outlet pipe (4) and fixed to the flange (82) by bolts. It is used to seal the circumferential gap between the upper end of the sleeve (2) and the water outlet pipe (4).

5. The underwater spring water pumping station water intake device according to claim 4, characterized in that, The upper end face of the second sealing element (8) is provided with a support seat, and the support seat is provided with a pipe clamp (81). The pipe clamp (81) is clamped to the outside of the water outlet pipe (4). The support seat and the pipe clamp (81) cooperate to suspend the water outlet pipe (4) inside the sleeve (2) and to transfer the load of the water outlet pipe (4) to the sleeve (2) through the second sealing element (8).

6. The underwater spring water pumping station water intake device according to claim 5, characterized in that, A first sealing gasket and a second sealing gasket are provided between the flange (82) and the second sealing element (8). The first sealing gasket is a flange sealing gasket, which is used to withstand the water pressure inside the water outlet pipe (4). The second sealing gasket is an elastic rubber sealing gasket, which is used to compensate for the deformation of the connection surface and provide auxiliary sealing.

7. The underwater spring water pumping station water intake device according to claim 1, characterized in that, An expansion strip (5) is provided in the circumferential gap between the water outlet pipe (4) and the sleeve (2), and the expansion strip (5) is made of a water-swellable material.

8. The underwater spring water pumping station water intake device according to claim 1, characterized in that, The lower end of the sleeve (2) is provided with a flower tube (21), and multiple water inlet holes are evenly opened on the tube wall of the flower tube (21).

9. The underwater spring water pumping station water intake device according to claim 1, characterized in that, The top of the underwater spring chamber (1) is provided with a pipe support (7) for supporting and fixing the sleeve (2).

10. The underwater spring water pumping station water intake device according to claim 1, characterized in that, The submersible pump (3) is detachably connected to the outlet pipe (4), and the outer diameter of the submersible pump (3) is smaller than the inner diameter of the sleeve (2).

Images