Siphon water pumping equipment

Abstract

The siphon water pumping equipment comprises a centrifugal pump, a water storage tank and a water feeding pipe, the centrifugal pump comprises a water inlet end and a water outlet end, and the water outlet end is connected with a water outlet pipe; the water storage tank is of a sealed structure and is connected with the water inlet end of the centrifugal pump, a liquid injection valve and an exhaust valve are arranged at the top of the water storage tank, and the liquid injection valve and the exhaust valve are linkage electromagnetic valves; the water feeding pipe is inserted from the bottom of the water storage tank and keeps a water inlet gap with the top of the water storage tank. The sealed water storage tank is additionally arranged between the water inlet end of the centrifugal pump and the water feeding pipe, so that the centrifugal pump can be in a vacuum state full of water all the time, and the water pumping requirement of quick start at any time is met. Besides, the water feeding pipe is inserted from the bottom of the water storage tank, potential energy needed by liquid entering the water storage tank can be reduced, the centrifugal pump is easier to start and pump water, and the requirement for the lift of the centrifugal pump is lowered.

Description

Technical Field

[0001] This application relates to the field of centrifugal pump application technology, and more specifically, to a siphon pumping device. Background Technology

[0002] Centrifugal pumps are a standard operation for pumping various liquids. Before operation, the centrifugal chamber of the pump needs to be filled with water to meet pumping requirements. For example, Chinese Patent 202022641912.0 discloses a pressure-stabilizing water injection system for a water pump to achieve automatic water injection. However, this system requires complex pressure-stabilizing PID control, resulting in high costs and the need for water injection every time it is started. Therefore, current traditional pumping devices simply have a foot valve on the water inlet pipe. This requires manual checking of the foot valve's tightness before starting, followed by adding water to purge air and create a vacuum environment for pumping. This method demands a tight seal on the foot valve, as it is below the water level. If it is not properly closed, air can enter the pipe, making it difficult to pump water up. Furthermore, this operation is cumbersome, repetitive, and in certain situations, such as field operations or emergencies, it is difficult to quickly add water, affecting pumping efficiency. Utility Model Content

[0003] This application provides a siphon pumping device to solve the problem that existing pumping devices require manual water injection into the centrifugal pump each time they are started, which leads to complicated operation and affects pumping efficiency.

[0004] A siphon pumping device according to this application includes:

[0005] A centrifugal pump includes an inlet end and an outlet end, with an outlet pipe connected to the outlet end.

[0006] The water storage tank is a sealed structure and is connected to the inlet of the centrifugal pump. The top of the water storage tank is equipped with an injection valve and an air vent valve, which are linked solenoid valves.

[0007] The water inlet pipe is inserted from the bottom of the water tank and maintains an inlet gap with the top of the water tank.

[0008] In some embodiments, the siphon pumping equipment is equipped with multiple centrifugal pumps connected in parallel, and each centrifugal pump is equipped with a one-way shut-off valve on the outlet pipe connected to its outlet end.

[0009] In some embodiments, an overhead support is provided below the water storage tank, which raises the water storage tank to a position higher than the centrifugal pump. The water supply pipe is inserted from the bottom of the water storage tank and extends upward to a predetermined height inside the water storage tank.

[0010] In some embodiments, the top of the water tank is also provided with a pressure sensor for measuring the vacuum level inside the water tank, and / or a liquid level sensor for measuring the liquid level inside the water tank.

[0011] In some embodiments, the top of the water storage tank is provided with a removable top cover, and an injection valve and an vent valve are installed on the top cover.

[0012] In some embodiments, the siphon pumping device further includes a controller electrically connected to an injection valve, an exhaust valve, a centrifugal pump, a pressure sensor, and / or a level sensor.

[0013] In some embodiments, a filter screen is provided at the water inlet end of the water supply pipe.

[0014] In some embodiments, a filter is provided on the outlet pipe connected to the outlet end of the centrifugal pump.

[0015] In some embodiments, the siphon pumping device further includes: a cooling water recovery container, which is connected to a cooling water discharge pipe to collect cooling water, and the inlet end of the water supply pipe extends into the cooling water recovery container.

[0016] In some embodiments, the cooling water recovery container is a cooling water pool, and the top of the cooling water pool is provided with a dust cover.

[0017] The technical solution of this application includes a siphon pumping device comprising: a centrifugal pump, a water storage tank, and a water inlet pipe. The centrifugal pump includes an inlet end and an outlet end, with the outlet end connected to an outlet pipe. The water storage tank is a sealed structure connected to the inlet end of the centrifugal pump. An injection valve and an vent valve are installed at the top of the water storage tank, and these valves are linked solenoid valves. The water inlet pipe is inserted from the bottom of the water storage tank, maintaining an inlet gap with the top of the tank. By installing a sealed water storage tank between the inlet end of the centrifugal pump and the water inlet pipe, this application allows liquid to remain inside the centrifugal pump after it stops, thus keeping the pump in a vacuum state filled with water. This meets the need for rapid pumping startup. The linked injection and vent valves at the top of the water storage tank facilitate equipment use and enable rapid operation, allowing for initial water filling of the tank. Furthermore, inserting the water inlet pipe from the bottom of the water storage tank reduces the potential energy required for liquid to enter the tank, making it easier to start the centrifugal pump and lowering the required head of the pump. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of a siphon pumping device according to an embodiment of this application is shown;

[0021] The above figures include the following reference numerals:

[0022] 1. Centrifugal pump; 2. Outlet pipe; 3. Water storage tank; 31. Top cover; 4. Injection valve; 5. Exhaust valve; 6. Water supply pipe; 7. One-way shut-off valve; 8. Overhead support; 9. Cooling water recovery container. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Figure 1 An embodiment of the siphon pumping device of this application is illustrated schematically.

[0029] like Figure 1 As shown, this application discloses a siphon pumping device, which includes: a centrifugal pump 1, which has an inlet end and an outlet end, and an outlet pipe 2 connected to the outlet end of the centrifugal pump 1 to pump out liquid; a water storage tank 3, which is a sealed structure and connected to the inlet end of the centrifugal pump 1, with an injection valve 4 and an exhaust valve 5 installed on the top of the water storage tank 3, and the injection valve 4 and the exhaust valve 5 are linked solenoid valves; and a water inlet pipe 6, which is inserted from the bottom of the water storage tank 3 and maintains an inlet gap with the top of the water storage tank 3.

[0030] Through the above structural design, the siphon pumping equipment of this application, by adding a sealed water storage tank 3 between the inlet end of the centrifugal pump 1 and the water supply pipe 6, utilizes the water storage function of the water storage tank 3 to keep the liquid inside the centrifugal pump 1 after the pump stops, thus keeping the centrifugal pump 1 in a vacuum state full of water, meeting the need for rapid pumping at any time. The top injection valve 4 and exhaust valve 5 of the water storage tank 3 are linked, which can facilitate remote control and use of the equipment after powering on, achieving rapid start-up and initial filling of the water storage tank 3. Furthermore, by inserting the water supply pipe 6 from the bottom of the water storage tank 3, this application can reduce the potential energy required for the liquid to enter the water storage tank 3, making it easier to start pumping water from the centrifugal pump 1 and reducing the head requirement of the centrifugal pump 1.

[0031] In some embodiments of this application, the siphon pumping device is equipped with multiple centrifugal pumps 1 connected in parallel. Each centrifugal pump 1 can work simultaneously to improve pumping efficiency, or work independently to adapt to different pumping speed requirements, while also handling pipeline maintenance. (As in this application...) Figure 1 As shown, each centrifugal pump 1 is equipped with a one-way shut-off valve 7 on its outlet pipe 2. The one-way shut-off valve 7 prevents liquid from flowing back into the centrifugal pump 1 after pumping is completed. For a single-channel centrifugal pump 1, the one-way shut-off valve 7 prevents the downstream liquid pressure from being too high at the moment pumping stops, thus avoiding backflow into the centrifugal pump 1 and impacting the impeller, thereby reducing the probability of impeller damage and extending the service life of the centrifugal pump 1. For multiple parallel centrifugal pumps 1, the one-way shut-off valve 7 prevents mutual interference between the multiple centrifugal pumps 1, preventing the pumped high-pressure liquid from flowing back into other parallel centrifugal pumps 1, thus protecting the relatively independent operation of the multiple centrifugal pumps 1 and avoiding crosstalk.

[0032] In some embodiments of this application, such as Figure 1 As shown, an overhead support 8 is installed below the water storage tank 3, raising the water storage tank 3 to a position higher than the centrifugal pump 1. Furthermore, the water inlet pipe 6 is inserted from the bottom of the overhead support of the water storage tank 3 and extends upwards to a predetermined height inside the water storage tank 3. This ensures that the water storage tank 3 retains sufficient liquid due to a good level, allowing the centrifugal pump 1 to remain full even after the pump stops, keeping the centrifugal pump 1 ready to pump water at any time. The predetermined height to which the water inlet pipe 6 extends into the water storage tank 3 is preferably above the horizontal position of the inlet end of the centrifugal pump 1, so that the water in the storage tank is higher than the inlet end of the centrifugal pump 1, filling the internal cavity of the centrifugal pump 1.

[0033] In some embodiments of this application, a pressure sensor for measuring the vacuum level inside the water storage tank 3 and / or a liquid level sensor for measuring the liquid level inside the water storage tank 3 are also provided on the top of the water storage tank 3. Through the pressure sensor and the liquid level sensor, the vacuum pressure and liquid level inside the water storage tank 3 can be easily obtained, thereby checking and confirming the sealing status of the water storage tank 3, thus determining the sealing performance of the water storage tank 3, and whether the centrifugal pump 1 can be started at any time for pumping operation.

[0034] In some embodiments of this application, the top of the water storage tank 3 is provided with a removable top cover 31, and the injection valve 4 and the vent valve 5 are installed on the top cover 31. Making the top of the water storage tank 3 a removable top cover 31 and installing the injection valve 4 and the vent valve 5 on the top cover 31 facilitates the installation and maintenance of the water storage tank 3, making it easier for personnel to open the water storage tank 3 to install pressure sensors and level sensors, as well as to check the sealing condition inside the water storage tank 3. The injection valve 4 and the vent valve 5 are solenoid valves and are linked together, so they can be opened and closed simultaneously. When both are open simultaneously, the injection valve 4 injects water into the water storage tank 3, while the gas inside the water storage tank 3 and the gas inside the centrifugal pump 1 are discharged through the vent valve 5. This avoids the problem of gas blockage leading to poor water injection that is easily caused by using a single pipeline for water injection, and improves the water injection speed. When both are closed simultaneously, it protects the seal of the water storage tank 3 and ensures its sealing performance.

[0035] In some embodiments of this application, the siphon pumping device further includes a controller electrically connected to the injection valve 4, the vent valve 5, the centrifugal pump 1, a pressure sensor, and / or a level sensor. This controller can comprehensively control the water injection operation and the start-up operation of the centrifugal pump 1 based on information such as the pressure and level within the water storage tank 3, thereby improving the ease of use and automation of the siphon pumping device. For example, when the pressure sensor and / or level sensor reaches a first threshold, it is determined that there is no water in the water storage tank 3. At this time, the injection valve 4 and the vent valve 5 are automatically opened to inject water into the water storage tank 3 for the first time. When the pressure sensor and / or level reaches a second threshold, it is determined that the water storage tank 3 is full of liquid. The injection valve 4 and the vent valve 5 can be automatically closed, and the centrifugal pump 1 can be started at any time for pumping operation.

[0036] In some embodiments of this application, a filter screen is provided at the water inlet end of the water inlet pipe 6 of the siphon pumping device of this application, so as to filter impurities in the water body from the source.

[0037] In some embodiments of this application, a filter, such as a Y-type filter, is installed on the outlet pipe 2 connected to the outlet end of the centrifugal pump 1 of the siphon pumping equipment. The filter can filter the water before it leaves the outlet to keep the water clean. Compared with installing a filter screen at the inlet end of the water supply pipe 6, installing a filter on the outlet pipe 2 has a better filtration effect because it is located above the water surface, making it convenient for cleaning and maintenance, and eliminating the need to lift the water supply pipe 6.

[0038] In some embodiments of this application, such as Figure 1 As shown, the siphon pumping equipment of this application further includes: a cooling water recovery container 9, which is connected to a cooling water discharge pipe, such as the cooling water system pipe of large equipment in a production workshop, for collecting cooling water used in production. Figure 1 As shown, the water inlet end of the water inlet pipe 6 extends into the cooling water recovery container 9, thus enabling the siphon pumping equipment to recover and reuse cooling water.

[0039] In some embodiments of this application, the cooling water recovery container 9 is a cooling water pool, and the top of the cooling water pool is provided with a dust cover (not shown) to protect the water body from falling into the water.

[0040] Combination Figure 1 The following diagram illustrates the working principle of this application:

[0041] Upon first use, open the injection valve 4 and the vent valve 5. Fill the sealed cavity of the water storage tank 3 with water through the funnel of the injection valve 4. Since the water storage tank 3 is connected to the centrifugal pump 1, air inside the pump casing can be expelled simultaneously, laying the foundation for the next step of siphoning. After the water storage tank 3 is full, close the vent valve 5 and the injection valve 4. At this point, the centrifugal pump 1 and the water storage tank 3 form a sealed space. When the impeller of the centrifugal pump 1 rotates, suction is generated as the impeller rotates at high speed. At this time, the water level in the water storage tank 3 will slowly drop as the suction of the impeller increases. The more the water level drops, the greater the vacuum in the upper part of the water storage tank 3. When the suction in the water storage tank 3 is greater than the weight of the water in the water inlet pipe 6, water will continuously flow from the cooling water pool into the water storage tank 3 under the action of suction. Then, the centrifugal force of the impeller will flow through the one-way shut-off valve 7 into the water outlet pipe 2, and be delivered to the point of use, completing the entire siphon process.

[0042] When pumping is finished, simply stop the power supply to centrifugal pump 1. After centrifugal pump 1 stops, the one-way shut-off valve 7 automatically closes to prevent liquid backflow. At this time, the water storage tank 3 is still full of liquid, thus ensuring that centrifugal pump 1, which is connected to it, is also full of liquid. In this way, pumping can be started at any time after starting and stopping centrifugal pump 1 without refilling, greatly improving pumping efficiency and saving time and labor costs. Simultaneously, eliminating frequent start-up and water filling operations reduces operational steps and lowers the risk of human error. Furthermore, by installing pressure and level sensors on the water storage tank 3 and using a controller to control the start of centrifugal pump 1, human error is further avoided, preventing centrifugal pump 1 from starting before it is full of liquid, reducing the probability of damage such as impeller cavitation, thus effectively protecting the safety of centrifugal pump 1 and extending its service life. Therefore, the siphon pumping equipment of this application has good reliability and stability, can operate continuously for a long time, and provides a reliable water source guarantee for industrial production.

[0043] In summary, the siphon pumping device of this application includes: a centrifugal pump, a water storage tank, and a water supply pipe. The centrifugal pump includes an inlet end and an outlet end, with the outlet end connected to an outlet pipe. The water storage tank is a sealed structure connected to the inlet end of the centrifugal pump. An injection valve and an vent valve are installed at the top of the water storage tank, and these valves are linked solenoid valves. The water supply pipe is inserted from the bottom of the water storage tank, maintaining an inlet gap with the top of the tank. By installing a sealed water storage tank between the inlet end of the centrifugal pump and the water supply pipe, this application allows liquid to remain inside the centrifugal pump after it stops, thus keeping the pump in a vacuum state filled with water, meeting the need for rapid pumping startup. The linked injection and vent valves at the top of the water storage tank facilitate equipment use and enable rapid operation, allowing for initial water filling of the storage tank. Furthermore, inserting the water supply pipe from the bottom of the water storage tank reduces the potential energy required for liquid to enter the tank, making it easier to start the centrifugal pump and lowering the head requirement.

[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A siphon water pumping device, characterized by, The application relates to a siphon water pumping device. The siphon water pumping device comprises centrifugal pumps (1) which comprise water inlet ends and water outlet ends, and water outlet pipes (2) connected to the water outlet ends of the centrifugal pumps (1); The siphon water pumping device further comprises a water storage tank (3) which is in a sealed structure and is connected to the water inlet ends of the centrifugal pumps (1), the top of the water storage tank (3) is provided with a liquid injection valve (4) and an exhaust valve (5), the liquid injection valve (4) and the exhaust valve (5) are linkage electromagnetic valves; The siphon water pumping device is provided with a plurality of parallel centrifugal pumps (1), and a one-way stop valve (7) is arranged on the water outlet pipe (2) connected to the water outlet end of each centrifugal pump (1); The top of the water storage tank (3) is further provided with a pressure sensor for measuring the vacuum degree in the water storage tank (3) and / or a liquid level sensor for measuring the liquid level in the water storage tank (3); The siphon water pumping device further comprises a controller which is electrically connected to the liquid injection valve (4), the exhaust valve (5), the centrifugal pump (1), the pressure sensor and / or the liquid level sensor. The siphon water pumping device is provided with an overhead support (8) below the water storage tank (3), the overhead support (8) supports the water storage tank (3) to a position higher than the centrifugal pump (1), and the water inlet pipe (6) is inserted into the bottom of the water storage tank (3) and extends upwards to a predetermined height in the water storage tank (3).

2. The siphon draw device of claim 1, wherein, The top of the water storage tank (3) is provided with a detachable top cover (31), and the liquid injection valve (4) and the exhaust valve (5) are mounted on the top cover (31).

3. The siphon draw apparatus of claim 1, wherein, The water inlet end of the water inlet pipe (6) is provided with a filter screen.

4. The siphon draw apparatus of claim 1, wherein, The water outlet pipe (2) connected to the water outlet end of the centrifugal pump (1) is provided with a filter.

5. The siphon draw apparatus of claim 1, wherein, The siphon water pumping device further comprises a cooling water recovery container (9) which is connected to a cooling water discharge pipeline to collect cooling water, and the water inlet end of the water inlet pipe (6) extends into the cooling water recovery container (9).

6. The siphon draw apparatus of claim 1, wherein, The cooling water recovery container (9) is a cooling water pool, and the top of the cooling water pool is provided with a dustproof cover plate.

7. The siphon draw apparatus of claim 6, wherein, ​

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