Leakage-free vertically-mounted double suction pump

Abstract

The utility model belongs to the technical field of double suction pumps, and particularly relates to a leakage-free vertically-installed double suction pump which comprises a vertical double suction pump, an inlet, an outlet, a sealing door, a water inlet pipe and a water outlet pipe, the inlet is connected to the left side of the vertical double suction pump, the outlet is connected to the right side of the vertical double suction pump, and the sealing door is installed on the front face of the vertical double suction pump through bolts. The water inlet pipe is connected to the left end of the inlet through a flange, the water outlet pipe is connected to the right end of the outlet through a flange, an auxiliary device is arranged in the vertical double-suction pump and comprises a filtering mechanism and a leakage-proof mechanism, the filtering mechanism is arranged in the inlet, and the leakage-proof mechanism is arranged on the back face of the vertical double-suction pump. According to the leakage-free vertically-installed double-suction pump, the filtering mechanism is arranged, water flow entering the vertical double-suction pump is filtered through the filtering net, the situation that the double-suction pump is blocked by particles in water is prevented, meanwhile, impact of the water flow on fan blades is utilized, the fan blades drive a brush plate to sweep the filtering net, and the filtering net is prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of double-suction pump technology, specifically a leak-free, vertically installed double-suction pump. Background Technology

[0002] Vertically installed double-suction pumps are a versatile type of pump. They are non-variable displacement pumps, typically consisting of a pump body, impeller, bearings, and sealing devices. They utilize centrifugal force to transport liquid materials. Due to the nature of the materials being transported, severe scaling or corrosion can easily occur inside the pump casing. Severe scaling can increase the casing wall thickness, forming scale nodules on the inner wall, reducing pump volume, decreasing pumping capacity, and increasing head loss due to a rough flow path. Both volumetric and hydraulic efficiency decrease, thus requiring frequent internal maintenance and cleaning of the double-suction pump.

[0003] Traditional double-suction pumps are typically installed horizontally. Horizontally installed double-suction pumps usually have the pump casing opened horizontally for easy inspection and maintenance, and to prevent residual liquid from leaking out. However, due to their structure, vertical double-suction pumps are difficult to install with separate pump casings. This is because some liquid usually remains inside the pump body of a vertical double-suction pump. If the pump body were opened, this residual liquid would leak out directly, causing environmental pollution and even safety issues.

[0004] As disclosed in CN118066121A, a leak-free, vertically mounted, double-suction pump is installed on top of a recovery tank via a base. When the pump body is in a low position, the inner tube retracts into the recovery pipe, blocking the top of the recovery pipe and preventing leakage of liquid materials from the pump body. When maintenance is required by opening the closed door, the base and pump body are raised via a lifting structure to enter the maintenance state. As the pump body rises, the inner tube and the recovery pipe move away from each other. After reaching a certain position, the inner rubber plug can be pulled out from the sealing sleeve, making the recovery pipe unobstructed. Residual liquid materials in the pump body can enter the recovery pipe, pass through the inner tube, and enter the recovery tank, completing the treatment of residual materials. This avoids leakage of residual materials when the closed door is opened for maintenance, preventing unexpected situations.

[0005] However, the device cannot filter the water entering the double-suction pump during use, causing large particles to enter the pump and causing blockages or damage to components such as the impeller.

[0006] Therefore, we urgently need to provide a leak-free, vertically mounted double-suction pump. Utility Model Content

[0007] The purpose of this invention is to provide a leak-free, vertically installed double-suction pump to solve the problem mentioned in the background art that the water entering the double-suction pump cannot be filtered during use, resulting in large particles entering the pump and causing blockage or damage to components such as the impeller.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a leak-free, vertically installed double-suction pump, comprising a vertical double-suction pump, an inlet, an outlet, a sealing valve, an inlet pipe, and an outlet pipe. The inlet is connected to the left side of the vertical double-suction pump, and the outlet is connected to the right side of the vertical double-suction pump. The sealing valve is bolted to the front of the vertical double-suction pump. The inlet pipe is connected to the left end of the inlet via a flange, and the outlet pipe is connected to the right end of the outlet via a flange. An auxiliary device is provided inside the vertical double-suction pump, which includes a filtration mechanism and a leak-proof mechanism.

[0009] The filter mechanism is located inside the inlet, and the leak-proof mechanism is located on the back of the vertical double-suction pump.

[0010] The filtration mechanism includes a filter screen, protrusions, springs, locking blocks, threaded rods, mounting plates, nuts, rotating shafts, fan blades, and brush plates. The filter screen is installed inside the inlet. The protrusions are fixedly installed on the front and rear sides of the filter screen. The springs are installed on the front and rear sides of the inlet. The locking blocks are fixedly installed on the top of the springs. The threaded rods are fixedly installed at the upper and lower ends of the inlet. The mounting plates are installed inside the inlet, with their upper and lower ends installed on the outside of the threaded rods. The nuts are threadedly connected to the outside of the threaded rods. The rotating shaft is rotatably connected inside the mounting plate. The fan blades are fixedly installed on the left side of the rotating shafts. The brush plates are fixedly installed on the outer right end of the rotating shafts.

[0011] Preferably, rectangular grooves are provided on the front and rear sides of the inlet, and the size of the rectangular grooves is equal to the size of the protrusions. When installing the filter screen, the protrusions cooperate with the rectangular grooves and push the filter screen inward, so that the protrusions slide along the rectangular grooves, thereby facilitating the installation of the filter screen inside the inlet.

[0012] Preferably, the lower surface of the rectangular groove inside the inlet is provided with an installation groove, and the spring and the locking block are installed inside the installation groove. After the filter screen is installed inside the inlet, the locking block limits the protrusion and fixes the filter screen inside the inlet.

[0013] Preferably, the inlet has connecting grooves on the upper and lower sides, and the threaded rod is fixedly installed in the connecting groove. The mounting plate slides along the threaded rod to the inlet through the upper and lower ends, and is fixed with nuts, thereby facilitating the installation of the mounting plate inside the inlet.

[0014] Preferably, the upper left side of the locking block is inclined. When installing the filter screen, as the filter screen moves into the inlet, the filter screen contacts the inclined surface of the locking block and pushes the locking block to compress the spring, causing the locking block to retract into the installation groove, so that the filter screen can move to the right side of the locking block, thereby facilitating the installation of the filter screen.

[0015] Preferably, the leak-proof mechanism includes valve one, valve two, a water storage tank, a connecting pipe, valve three, a pump body, and an air pipe. Valve one is installed on the top of the inlet pipe, valve two is installed on the top of the outlet pipe, the water storage tank is installed on the left side of the back of the vertical double-suction pump, one end of the connecting pipe is connected to the front of the water storage tank, valve three is installed on the top of the connecting pipe, the pump body is installed on the right side of the back of the vertical double-suction pump, and one end of the air pipe is connected to the output end of the pump body.

[0016] Preferably, the end of the connecting pipe furthest from the water storage tank is connected to the bottom of the inlet pipe, and the end of the air pipe furthest from the pump body is connected to the outlet pipe. When maintenance of the vertical double-suction pump is required, valves two and one are closed, and then the pump body is started to vent air into the outlet pipe through the air pipe. Under pressure, the water inside the vertical double-suction pump is pushed into the water storage tank through the connecting pipe, thereby preventing the water inside the vertical double-suction pump from leaking out when the closed door is opened.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This leak-free, vertically installed double-suction pump, through the installation of a filtration mechanism, uses a filter screen to filter the water entering the pump, preventing particles in the water from clogging the pump. At the same time, the impact of the water flow on the fan blades causes the fan blades to drive the brush plate to clean the filter screen, preventing the filter screen from clogging.

[0019] 2. This leak-free, vertically installed double-suction pump, by setting up a leak-proof mechanism, allows air to be introduced into the outlet pipe through an air pipe. Under pressure, the water inside the vertical double-suction pump is pushed into the water storage tank through the connecting pipe, thereby preventing the water inside the vertical double-suction pump from leaking out when the closed door is opened. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a rear view of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the imported part of this utility model;

[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 5 This is a partial structural diagram of the filtration mechanism of this utility model;

[0025] Figure 6 This is a cross-sectional view of the connection between the inlet and the card block of this utility model.

[0026] In the diagram: 1. Vertical double-suction pump; 2. Inlet; 3. Outlet; 4. Sealing door; 5. Inlet pipe; 6. Outlet pipe; 701. Filter screen; 702. Protrusion; 703. Spring; 704. Locking block; 705. Threaded rod; 706. Mounting plate; 707. Nut; 708. Shaft; 709. Fan blade; 710. Brush plate; 801. Valve 1; 802. Valve 2; 803. Water storage tank; 804. Connecting pipe; 805. Valve 3; 806. Pump body; 807. Air pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Current technology cannot filter the water entering the double-suction pump, leading to large particles entering the pump and causing blockages or damage to components such as the impeller. Please refer to [link / reference]. Figures 1-6 This embodiment provides a leak-free, vertically installed double-suction pump that prevents particles in the water from clogging the pump. The leak-free, vertically installed double-suction pump includes a vertical double-suction pump 1, an inlet 2, an outlet 3, a sealing valve 4, an inlet pipe 5, and an outlet pipe 6. The inlet 2 is connected to the left side of the vertical double-suction pump 1, and the outlet 3 is connected to the right side. The sealing valve 4 is bolted to the front of the vertical double-suction pump 1, and a sealing ring is installed at the connection between the sealing valve 4 and the vertical double-suction pump 1 to prevent water from overflowing through the gap between the sealing valve 4 and the vertical double-suction pump 1. The inlet pipe 5 is connected to the left end of the inlet 2 via a flange, and the outlet pipe 6 is connected to the right end of the outlet 3 via a flange. The vertical double-suction pump 1 is internally equipped with auxiliary devices, including a filtration mechanism and a leak-proof mechanism.

[0030] The filter mechanism is located inside the inlet 2, and the leak-proof mechanism is located on the back of the vertical double-suction pump 1.

[0031] The filtration mechanism includes a filter screen 701, a protrusion 702, a spring 703, a locking block 704, a threaded rod 705, a mounting plate 706, a nut 707, a rotating shaft 708, a fan blade 709, and a brush plate 710. The filter screen 701 is installed inside the inlet 2. The protrusion 702 is fixedly installed on the front and rear sides of the filter screen 701. Rectangular grooves are opened on the front and rear sides inside the inlet 2, and the size of the rectangular grooves is equal to the size of the protrusion 702. When installing the filter screen 701, the protrusion 702 cooperates with the rectangular groove and pushes it inward. The filter screen 701 is moved, causing the protrusion 702 to slide along the rectangular groove, thus facilitating the installation of the filter screen 701 inside the inlet 2. The spring 703 is installed on both the front and rear sides inside the inlet 2. An installation groove is formed on the lower surface of the rectangular groove inside the inlet 2. The spring 703 and the locking block 704 are installed inside the installation groove. After the filter screen 701 is installed inside the inlet 2, the locking block 704 limits the protrusion 702, fixing the filter screen 701 inside the inlet 2. The locking block 704 is fixedly installed on the top of the spring 703. The upper left side of the 04 is sloped. During the installation of the filter screen 701, as the filter screen 701 moves into the inlet 2, it contacts the sloped surface of the locking block 704, pushing the locking block 704 to compress the spring 703, causing the locking block 704 to retract into the mounting groove. This allows the filter screen 701 to move to the right side of the locking block 704, facilitating its installation. The threaded rod 705 is fixedly installed at both the upper and lower ends inside the inlet 2. Connecting grooves are provided on both the upper and lower sides inside the inlet 2, and the threaded rod 705 is fixedly installed in the connecting grooves. Inside, the mounting plate 706 slides along the threaded rod 705 from both the upper and lower ends to the inside of the inlet 2, and is fixed to it with the nut 707, thus facilitating the installation of the mounting plate 706 inside the inlet 2. The mounting plate 706 is installed inside the inlet 2 with its upper and lower ends installed on the outside of the threaded rod 705. The nut 707 is threadedly connected to the outside of the threaded rod 705. The rotating shaft 708 is rotatably connected inside the mounting plate 706. The fan blade 709 is fixedly installed on the left side of the rotating shaft 708, and the brush plate 710 is fixedly installed on the outside of the right end of the rotating shaft 708.

[0032] Example 2:

[0033] Based on Example 1, please refer to Figures 1-6To prevent water leakage from the vertical double-suction pump 1 after the sealing door 4 is opened, this device is also equipped with a leak-proof mechanism. The leak-proof mechanism includes valve 1 801, valve 2 802, water storage tank 803, connecting pipe 804, valve 3 805, pump body 806, and air pipe 807. Valve 1 801 is installed at the top of the inlet pipe 5, valve 2 802 is installed at the top of the outlet pipe 6, water storage tank 803 is installed on the left side of the back of the vertical double-suction pump 1, one end of connecting pipe 804 is connected to the front of water storage tank 803, valve 3 805 is installed at the top of connecting pipe 804, and pump body 806 is installed on the vertical double-suction pump 1. On the right side of the back, one end of the air pipe 807 is connected to the output end of the pump body 806, and the end of the connecting pipe 804 away from the water storage tank 803 is connected to the bottom of the water inlet pipe 5. The end of the air pipe 807 away from the pump body 806 is connected to the water outlet pipe 6. When it is necessary to maintain the vertical double suction pump 1, by closing valve 2 802 and valve 1 801, and then starting the pump body 806, air is circulated into the water outlet pipe 6 through the air pipe 807. Under the action of pressure, the water inside the vertical double suction pump 1 is pushed into the water storage tank 803 through the connecting pipe 804 for storage, thereby preventing the water inside the vertical double suction pump 1 from leaking out when the sealing door 4 is opened.

[0034] When in use, start the vertical double-suction pump 1, allowing water to enter the inlet 2 through the inlet pipe 5. After being filtered by the filter screen 701, the water is discharged from the outlet pipe 6 through the vertical double-suction pump 1. At the same time, the water entering the inlet 2 impacts the fan blades 709, causing the fan blades 709 to drive the rotating shaft 708 and the brush plate 710 to rotate. This allows the brush plate 710 to scrape away dust and impurities adhering to the surface of the filter screen 701, preventing the filter screen 701 from clogging. When maintenance of the vertical double-suction pump 1 is required, close valve 2 802 and valve 1 801, and open valve 3 805. Then start the pump body 806 and start the air pipe 8. 07. Air is introduced into the outlet pipe 6. Under pressure, the water inside the vertical double-suction pump 1 is pushed into the water storage tank 803 through the connecting pipe 804 for storage, thereby preventing the water inside the vertical double-suction pump 1 from leaking out when the sealing door 4 is opened. Then, the sealing door 4 is removed and the vertical double-suction pump 1 is repaired. At the same time, when the water flows into the connecting pipe 804 from the inlet 2, the water flow will backwash the filter screen 701 and send the washed impurities into the water storage tank 803 through the connecting pipe 804, further improving the cleaning quality of the filter screen 701 and facilitating the cleaning of impurities inside the inlet 2.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A leak-free, vertically mounted double-suction pump, comprising a vertical double-suction pump (1), an inlet (2), an outlet (3), a sealing valve (4), an inlet pipe (5), and an outlet pipe (6), wherein the inlet (2) is connected to the left side of the vertical double-suction pump (1), the outlet (3) is connected to the right side of the vertical double-suction pump (1), the sealing valve (4) is bolted to the front of the vertical double-suction pump (1), the inlet pipe (5) is connected to the left end of the inlet (2) via a flange, and the outlet pipe (6) is connected to the right end of the outlet (3) via a flange, characterized in that: The vertical double-suction pump (1) is equipped with an auxiliary device, which includes a filter mechanism and a leak prevention mechanism. The filter mechanism is located inside the inlet (2), and the leak prevention mechanism is located on the back of the vertical double suction pump (1); The filtration mechanism includes a filter screen (701), a protrusion (702), a spring (703), a locking block (704), a threaded rod (705), a mounting plate (706), a nut (707), a rotating shaft (708), a fan blade (709), and a brush plate (710). The filter screen (701) is installed inside the inlet (2). The protrusion (702) is fixedly installed on the front and rear sides of the filter screen (701). The spring (703) is installed on the front and rear sides inside the inlet (2). The locking block (704) is fixedly installed... At the top of the spring (703), the threaded rod (705) is fixedly installed at both the upper and lower ends inside the inlet (2), the mounting plate (706) is installed inside the inlet (2) and its upper and lower ends are installed on the outside of the threaded rod (705), the nut (707) is threadedly connected to the outside of the threaded rod (705), the rotating shaft (708) is rotatably connected to the inside of the mounting plate (706), the fan blade (709) is fixedly installed on the left side of the rotating shaft (708), and the brush plate (710) is fixedly installed on the outside of the right end of the rotating shaft (708).

2. The leak-free, vertically mounted double-suction pump according to claim 1, characterized in that: The inlet (2) has rectangular grooves on both the front and rear sides inside, and the size of the rectangular grooves is equal to the size of the protrusion (702).

3. The leak-free, vertically installed double-suction pump according to claim 2, characterized in that: The lower surface of the rectangular groove inside the inlet (2) is provided with an installation groove, and the spring (703) and the locking block (704) are installed inside the installation groove.

4. The leak-free, vertically installed double-suction pump according to claim 1, characterized in that: The inlet (2) has connecting grooves on its upper and lower sides, and the threaded rod (705) is fixedly installed in the connecting grooves.

5. A leak-free, vertically mounted double-suction pump according to claim 1, characterized in that: The upper left side of the card block (704) is a slope.

6. A leak-free, vertically installed double-suction pump according to claim 1, characterized in that: The leak-proof mechanism includes valve one (801), valve two (802), water storage tank (803), connecting pipe (804), valve three (805), pump body (806), and air pipe (807). Valve one (801) is installed on the top of the water inlet pipe (5), valve two (802) is installed on the top of the water outlet pipe (6), water storage tank (803) is installed on the left side of the back of the vertical double suction pump (1), one end of the connecting pipe (804) is connected to the front of the water storage tank (803), valve three (805) is installed on the top of the connecting pipe (804), pump body (806) is installed on the right side of the back of the vertical double suction pump (1), and one end of the air pipe (807) is connected to the output end of the pump body (806).

7. A leak-free, vertically mounted double-suction pump according to claim 6, characterized in that: The end of the connecting pipe (804) away from the water storage tank (803) is connected to the bottom of the water inlet pipe (5), and the end of the air pipe (807) away from the pump body (806) is connected to the water outlet pipe (6).

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