Vacuum water pumping and storing device
By combining a vacuum pump pumping device with a float control mechanism, a liquid level sensor, and a filter, the problems of low efficiency and easy clogging of manual drainage in ship repair and construction are solved. This achieves efficient and convenient water treatment of the ship, improves repair quality and efficiency, and reduces operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-03-31
AI Technical Summary
In the existing technology, manual drainage is inefficient and labor-intensive during ship repair and construction. Conventional pumping devices are bulky and prone to clogging, and there is a lack of effective solid-liquid separation mechanisms, resulting in high system failure rates and increased operating costs.
A vacuum pump is used to evacuate the first water tank, and the accumulated water is pumped into the first and second water tanks for storage through the suction pipe. The vacuum pump is automatically controlled by a float control mechanism and a liquid level sensor to isolate impurities and prevent clogging. Solid-liquid separation is achieved by combining a water baffle plate and a filter to extend the service life of the vacuum pump.
It achieves efficient and thorough water treatment of ship volume, reduces the labor intensity of workers, improves repair quality and efficiency, extends the service life of vacuum pumps, and reduces maintenance frequency and costs.
Smart Images
Figure CN121760904A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of pumping device technology, and in particular to a vacuum pumping and water storage device that can be used for ship repair and construction. Background Technology
[0002] In ship repair and construction, water accumulation in ship sections and cabins has always been a persistent problem. During ship construction, most sections are left exposed to the elements for extended periods after the welding and painting platforms are erected. Rainy weather easily leads to significant water accumulation within these sections, not only hindering construction progress but also accelerating corrosion of the hull structure. Furthermore, for open-air repairs, heavy rains cause water levels in open cabins to rise rapidly, severely impacting the progress of work.
[0003] Currently, the main drainage methods used in repair and construction include manual drainage. After initial drainage using water pumps, the remaining bottom water is manually absorbed and cleaned using tools such as rags and sponges. Manual processing is inefficient, labor-intensive, and difficult to thoroughly clean small areas of water. Conventional water pumps are bulky and inconvenient to move, requiring time and effort to transport. Furthermore, the water in ship sections typically contains solid impurities such as welding slag, iron filings, and sand, which can easily clog pumps and piping systems during pumping. Existing pumping devices lack effective solid-liquid separation mechanisms, leading to high system failure rates, frequent maintenance, and increased operating costs. Summary of the Invention
[0004] The purpose of this invention is to provide a vacuum pumping and water storage device, which uses a vacuum pump to evacuate the first water tank, allowing the suction pipe to pump the water accumulated in the chamber into the first and second water tanks for storage. The vacuum pump is isolated from the system, preventing impurities from causing blockages and effectively extending the service life of the vacuum pump.
[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a vacuum pumping and water storage device, including a first water tank and a second water tank connected to each other, the first water tank and the second water tank being connected by a connecting water pipe, a vacuum pump being provided on the top of the first water tank, a water suction pipe being connected to the first water tank, a float control mechanism being provided on the top of the first water tank, the float control mechanism being used to control the start and stop of the vacuum pump, and a drain valve being provided on the bottom side of the second water tank.
[0006] This invention employs the aforementioned technical solution: a suction pipe extends into the accumulated water, and a vacuum pump evacuates the first water tank. The accumulated water inside the chamber is forced into the first and second water tanks by external atmospheric pressure. When both tanks are full, the water is drained through a drain valve at the bottom of the second tank, completing the drainage of the chamber. The vacuum pump draws the water into the first water tank by evacuating it, avoiding direct contact between the pump and the water. This prevents water from passing through the pump and avoids blockages caused by sand, welding slag, or other impurities, effectively extending the pump's lifespan.
[0007] In the aforementioned vacuum pumping and water storage device, a horizontal baffle plate is installed in the first water tank near the vacuum pump. A liquid level sensor is installed on the bottom surface of the baffle plate, and the liquid level sensor is connected to the vacuum pump. The baffle plate is close to the vacuum pump's suction port to prevent water in the first water tank from being sucked onto the vacuum pump, thus isolating the vacuum pump from the water. When the water level in the first water tank rises to the point where it touches the liquid level sensor, the liquid level sensor sends a feedback signal and stops the vacuum pump from operating.
[0008] The aforementioned vacuum pumping and water storage device includes a vacuum pump comprising a motor and a plunger pump. The motor is connected to the plunger pump, and the plunger pump's suction port is connected to the inside of the first water tank. A first check valve is provided at both the suction port and the outlet port of the plunger pump. The motor drives the plunger pump to create a vacuum inside the first water tank, and the first check valve prevents external gas from being forced into the first water tank.
[0009] The aforementioned vacuum pumping and water storage device includes a float control mechanism comprising a float, a motor switch limiter, and a connecting rod. The motor switch limiter is located at the top of the first water tank. The connecting rod movably passes through the top wall of the first water tank, with its inner end connected to the float and its outer end connected to a motor switch limit plate. When there is no water in the first water tank, the motor switch limit plate descends and presses against the motor switch limiter, which then activates the motor to pump water into the first and second water tanks.
[0010] The aforementioned vacuum pumping and water storage device also includes an air inlet valve at the top of the first water tank. An air inlet valve limit plate is located on the connecting rod inside the first water tank. When the float pushes the connecting rod upwards, the air inlet valve limit plate contacts and activates the air inlet valve. The air inlet valve, located at the top of the first water tank, connects to the outside of the tank, allowing the internal pressure of the first water tank to return to atmospheric pressure when water is discharged from the outside of both the first and second water tanks.
[0011] The aforementioned vacuum pumping and water storage device is equipped with a second check valve on the connecting water pipe. The second check valve is used to prevent backflow of water in the second water tank.
[0012] The aforementioned vacuum pumping and water storage device is equipped with an adjustable float valve at the outlet of the connecting water pipe. The adjustable float valve is used to control the on / off state of the connecting water pipe and to control the water level in the second water tank.
[0013] The aforementioned vacuum pumping and water storage device has an exhaust pipe connected to the top of the second water tank. The exhaust pipe is used to balance the air pressure inside and outside the water tank during drainage.
[0014] The aforementioned vacuum pumping and water storage device has a filter at the inlet of the suction pipe. The filter can remove solid particulate impurities from the accumulated water, preventing them from being pumped into the water tank.
[0015] The beneficial effects achieved by this invention are as follows: This device, through a highly integrated design, organically combines vacuum pumping, solid-liquid separation, wastewater storage, and intelligent control, solving problems such as incomplete drainage, difficulty in maintaining vacuum, and insufficient impurity handling capacity in existing technologies. It achieves more efficient, thorough, and convenient shipboard water treatment, improves the quality and efficiency of repair and maintenance, and reduces the labor intensity of workers. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the pumped water storage in a full water state according to an embodiment of the present invention; Figure 3 This is a structural schematic diagram of the drainage state in an embodiment of the present invention.
[0017] Explanation of reference numerals in the attached drawings: First water tank 1, vacuum pump 11, motor 111, plunger pump 112, first check valve 113, float control mechanism 12, float 121, motor switch limiter 122, connecting rod 123, motor switch limit plate 124, air inlet valve limit plate 125, water baffle 13, liquid level sensor 14, air inlet valve 15, second water tank 2, drain valve 21, exhaust pipe 22, connecting water pipe 3, second check valve 31, adjustable float valve 32, suction pipe 4, filter 41. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Reference Figure 1 As shown, a vacuum pumping and water storage device includes a first water tank 1 and a second water tank 2 connected to each other. The first water tank 1 and the second water tank 2 are connected by a connecting water pipe 3. A vacuum pump 11 is provided on the top of the first water tank 1, and a suction pipe 4 is connected to the first water tank 1. A float control mechanism 12 is provided on the top of the first water tank 1. The float control mechanism 12 is used to control the start and stop of the vacuum pump 11. A drain valve 21 is provided on the bottom side of the second water tank 2.
[0020] The first water tank 1 and the second water tank 2 are connected by a connecting water pipe 3, allowing water pumped into the first water tank 1 to flow into the second water tank 2 for storage. Water from ship sections and cabins is pumped into the first water tank 1 through a suction pipe 4. Specifically, a vacuum pump 11 operates to create a vacuum inside the first water tank 1, making the air pressure inside the first water tank 1 lower than the external atmospheric pressure. Atmospheric pressure then forces the water from the cabins into the first water tank 1 through the suction pipe 4, and then into the second water tank 2 through the connecting water pipe 3. In this embodiment... Figure 1 In the setup shown, the first water tank 1 is positioned above the second water tank 2. Water flowing into the first water tank 1 continuously flows into the second water tank 2 through the connecting water pipe 3 at the bottom. As water continuously enters the first water tank 1, the float control mechanism 12 rises due to buoyancy. When the water level reaches the required discharge point, the float control mechanism 12 activates a switch, stopping the vacuum pump 11. By opening the drain valve 21 at the bottom of the second water tank 2, the water in the second water tank 2 is discharged. Simultaneously, water from the first water tank 1 flows into the second water tank 2 and is discharged along with it.
[0021] In other embodiments, the first water tank 1 and the second water tank 2 can be arranged side by side. When the water level in the first water tank 1 reaches a certain height and the accumulated water level is higher than its drain valve, it flows into the second water tank 2 through the connecting water pipe 3. When draining, the water in the second water tank 2 can be drained first, and then the water in the first water tank 1 can be drained by pouring it sideways into the first water tank 1.
[0022] In this embodiment, a water baffle plate 13 is horizontally arranged inside the first water tank 1 near the vacuum pump 11. A liquid level sensor 14 is provided on the bottom surface of the water baffle plate 13, and the liquid level sensor 14 is connected to the vacuum pump 11. When the water level reaches a certain height and touches the liquid level sensor 14, the liquid level sensor 14 feeds back information to this device, controlling the vacuum pump 11 to stop working, thereby starting the drainage operation.
[0023] In this embodiment, the vacuum pump 11 includes a motor 111 and a plunger pump 112. The motor 111 is connected to the plunger pump 112. The suction port of the plunger pump 112 is connected to the inside of the first water tank 1. The suction port and the outlet of the plunger pump 112 are each equipped with a first check valve 113. The suction port of the plunger pump 112 is connected to the inside of the first water tank 1. The motor 111 drives the plunger pump 112 to work, so that the suction port extracts the gas in the first water tank 1, so that the inside of the first water tank 1 is pressurized or even vacuumed. The water accumulated in the ship sections and cabins is sucked into the first water tank 1 through the suction pipe 4. At the same time, the sucked water enters the second water tank 2 through the connecting water pipe 3 for storage.
[0024] The float control mechanism 12 includes a float 121, a motor switch limiter 122, and a connecting rod 123. The motor switch limiter 122 is located at the top of the first water tank 1. The connecting rod 123 is movably inserted through the top wall of the first water tank 1, with its inner end connected to the float 121 and its outer end connected to a motor switch limiter plate 124. When water accumulates and the water level rises in the first water tank 1, the float 121 rises due to buoyancy, pushing the connecting rod 123 upward until the water level rises to the level sensor 14, causing the motor 111 to stop pumping water. During the drainage process, the water level in the first water tank 1 drops, and the float 121 follows the water level down. The connecting rod 123 pulls the motor switch limit plate 124 down. When all the water is discharged from the first water tank 1, or when it is not completely discharged and the motor switch limit plate 124 can touch the motor switch limit device 122 during descent, the motor 111 starts to work and uses the plunger pump 112 to vacuum the first water tank 1, and circulates to pump out the water.
[0025] The top of the first water tank 1 is also equipped with an air inlet valve 15, and an air inlet valve limit plate 125 is provided on the connecting rod 123 located inside the first water tank 1. When the float 121 pushes the connecting rod 123 upward, the air inlet valve limit plate 125 touches and activates the air inlet valve 15. When the vacuum pump 11 stops working and enters the drainage process, the air inlet valve 15 opens, and external gas enters the first water tank 1, which can balance the air pressure inside and outside the first water tank 1, so that drainage can proceed smoothly. During the pumping process, the plunger pump 112 continuously draws airflow from the first water tank 1. The inlet of the suction pipe 4 is immersed in the water in the ship's volume. The surface of the water is subjected to atmospheric pressure, while the gas pressure inside the first water tank 1 is extremely low. This pressure difference forces the water to flow along the suction pipe 4 from the high-pressure area of the compartment to the low-pressure area inside the first water tank 1, until the water level in the first water tank 1 reaches a position where the internal and external pressures are balanced. When the water level reaches its highest point, the float 121 pushes the connecting rod 123 upward, which in turn causes the air intake valve limit plate 125 on the connecting rod 123 to rise and touch the air intake valve 15. The air intake valve 15 opens, and external gas enters the first water tank 1. At the same time, the motor 111 stops working. Because the air intake valve 15 opens when the water level rises to the point where the vacuum pump 11 stops working, external airflow can enter the first water tank 1, balancing the internal and external pressure differences, allowing the water to be discharged smoothly.
[0026] A second check valve 31 is installed on the connecting water pipe 3. The second check valve 31 is used to prevent backflow of water. An adjustable float valve 32 is installed at the outlet of the connecting water pipe 3. The adjustable float valve 32 is used to adjust the water level in the second water tank 2. When the water level reaches a certain height, the float of the adjustable float valve 32 will float up, causing the adjustable float valve 32 to close the outlet of the connecting water pipe 3. An vent pipe 22 is connected to the top of the second water tank 2. The vent pipe 22 is used to conduct the pressure difference between the second water tank 2 and the outside, facilitating the drainage of water accumulated in the second water tank 2.
[0027] A filter 41 is installed at the inlet of the suction pipe 4. The filter 41 filters out solid particles in the water inside the chamber, preventing them from being sucked in and causing blockage of the suction pipe 4.
[0028] Reference Figure 2-3 As shown, in a specific implementation, this vacuum pumping and water storage device uses a vacuum pump 11 to remove air from the inside of the first water tank 1, completing the vacuuming process or creating a negative pressure inside the first water tank 1. As the air is expelled, the gas inside the first water tank 1 decreases sharply, resulting in an internal pressure much lower than the atmospheric pressure of the external environment. At this time, a significant pressure difference is formed between the first water tank 1 and the external environment. Due to this pressure difference, the water inlet of the suction pipe 4, which enters the water inlet of the ship, is forced by the pressure difference to move the accumulated water from the high-pressure area to the low-pressure area along the suction pipe 4, that is, the accumulated water from the ship enters the first water tank 1 through the suction pipe 4, until the pressure inside the first water tank 1 is balanced with the external pressure. As the water level in the first water tank 1 continuously flows into the second water tank 2, when the second water tank 2 is full or the water level adjusted by the adjustable floating valve 32 reaches the set value, the water flow stops entering the second water tank 2 through the connecting water pipe 3. At this time, as the vacuum pump 11 continues to work, the accumulated water continues to enter the first water tank 1, and the water level in the first water tank 1 begins to rise. When the water level in the first water tank 1 rises to a certain height, it triggers the level sensor 15. The device shuts off the vacuum pump 11, stopping the pumping and isolating the system. Simultaneously, the float 121 pushes the connecting rod 123 upwards. The air inlet valve limit plate 125 on the connecting rod 123 contacts the air inlet valve 14, opening the valve and restoring the air pressure in the first water tank 1 to atmospheric pressure. At this time, the drain valve 21 on the lower side of the second water tank 2 is opened, and the water collected in the second water tank 2 and the first water tank 1 is drained by gravity or an external auxiliary pump. After drainage is complete, the air inlet valve 14 and the exhaust valve 21 are closed. During drainage, the float 121 descends with the water level. When the motor switch limit plate 124 descends and contacts the motor switch limiter 122, the motor 111 starts working, restarting the vacuum pump 11 and beginning the next pumping cycle.
[0029] In summary, as described in the specification and figures, the present invention has been manufactured into actual samples and subjected to multiple usage tests. The results of these tests demonstrate that the present invention achieves its intended purpose, and its practical value is undeniable. The embodiments described above are merely illustrative examples and are not intended to limit the present invention in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present invention, without departing from the scope of the technical features of the present invention, shall still fall within the scope of the technical features of the present invention.
Claims
1. A vacuum water pumping and storing device, characterized by: The utility model provides a water tank, including first water tank (1) and second water tank (2) of intercommunication, first water tank (1) with second water tank (2) between through the water pipe (3) of link, first water tank (1) top is equipped with vacuum pump (11), first water tank (1) is communicated with the water suction pipe (4), first water tank (1) top is equipped with the ball control mechanism (12), the ball control mechanism (12) is used to control the start and stop of vacuum pump (11), second water tank (2) is located the bottom side position and is equipped with drain valve (21).
2. The vacuum water evaporating and storing device according to claim 1, characterized in that: The first water tank (1) is provided with a water level sensor (14) on the bottom surface of the water baffle (13) near the vacuum pump (11), and the water level sensor (14) is signal connected with the vacuum pump (11).
3. The vacuum water-storing device according to claim 1, wherein: The vacuum pump (11) comprises a motor (111) and a plunger pump (112), the motor (111) is connected with the plunger pump (112), the air inlet of the plunger pump (112) is communicated with the inside of the first water tank (1), and the air inlet and the air outlet of the plunger pump (112) are each provided with a first check valve (113).
4. The apparatus of claim 3, wherein: The ball control mechanism (12) comprises a ball (121), a motor switch limiter (122) and a connecting rod (123), the motor switch limiter (122) is arranged on the top of the first water tank (1), the connecting rod (123) is movably arranged on the top wall of the first water tank (1), the inner end of the connecting rod (123) extending into the first water tank (1) is connected with the ball (121), and the outer end of the connecting rod (123) located outside the first water tank (1) is connected with a motor switch limiting plate (124).
5. The apparatus of claim 4, wherein: The first water tank (1) is further provided with an air inlet valve (15), and the air inlet valve limiting plate (125) is arranged on the connecting rod (123) in the first water tank (1), when the ball (121) pushes the connecting rod (123) to rise, the air inlet valve limiting plate (125) touches and starts the air inlet valve (15).
6. The apparatus of claim 1, wherein: The water pipe (3) is provided with a second check valve (31).
7. The apparatus of claim 6, wherein: The water outlet of the water pipe (3) is provided with an adjustable ball valve (32).
8. The apparatus of claim 1, wherein: The second water tank (2) is connected with an exhaust pipe (22) on the top.
9. The apparatus of claim 1, wherein: The water inlet of the water suction pipe (4) is provided with a filter (41).