Industrial wastewater submersible sewage pump

Abstract

The utility model discloses an industrial wastewater submersible sewage pump and relates to the technical field of submersible sewage pumps, the industrial wastewater submersible sewage pump comprises a submersible sewage pump main body, a top cover and a water outlet pipe, the top cover is installed on the submersible sewage pump main body, the water outlet pipe is installed on one side of the submersible sewage pump main body, the top cover is fixedly connected with a central shaft, the central shaft is provided with two groups of protective covers, and the protective covers are fixedly connected with the submersible sewage pump main body. The two sets of protective covers can protect the submersible sewage pump body inside, filtering assemblies are fixedly installed at the bottoms of the two sets of protective covers, and a fastening assembly is fixedly connected to the center shaft. The protective cover is additionally arranged outside the submersible sewage pump, so that the pump body does not need to be directly exposed in waste water, the probability that a pump shell is corroded by chemical pollutants is reduced, and the service life of the submersible sewage pump is prolonged; according to the submersible sewage pump, the detachable filter screen is additionally arranged, so that the cleaning work of the screen wall of the filter screen becomes simple and rapid, the maintenance time of the pump body is shortened, and the use efficiency of the submersible sewage pump is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of submersible sewage pumps, and particularly relates to an industrial wastewater submersible sewage pump. Background Art

[0002] Pollution caused by industrial wastewater mainly includes: chemical toxic pollution, inorganic solid suspension pollution, heavy metal pollution, acid pollution, etc., causing large-area water pollution. Therefore, controlling industrial wastewater is particularly important; the water volume of industrial wastewater depends on the water usage situation. Industries such as metallurgy, papermaking, petrochemical, and electric power have large water consumption and large wastewater volume. For example, refinery chemical sewage contains a large amount of corrosive media.

[0003] Existing submersible sewage pumps for biochemical use generally operate directly in water. Some submersible pumps with poor sealing are immersed in wastewater for a long time. Even when not in use, the insulation value will gradually decrease. Moreover, due to corrosion by the media in the wastewater, it is easy for the outer wall of the pump body to bulge, the stiffness of the lifting rings to decrease, and cracks to appear at the welded joints of some support components. Seriously, the submersible sewage pump cannot be put into use; in addition, for the filter screen that is corroded by the media and blocked by particles for a long time, since it is fixedly installed on the pump body, when cleaning the inner wall of the filter screen, the filter screen has to be removed from the pump body first, and the cleaning work is troublesome, time-consuming and laborious.

[0004] Therefore, in view of the above technical problems, it is necessary to provide an industrial wastewater submersible sewage pump. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an industrial wastewater submersible sewage pump, which can solve the problems that the outer wall of the submersible sewage pump is corroded due to long-term immersion in wastewater, and the filter screen needs to be removed from the pump body for cleaning, and the maintenance work is time-consuming and laborious.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] An industrial wastewater submersible sewage pump includes a submersible sewage pump main body, a top cover, and a water outlet pipe. The top cover is installed on the submersible sewage pump main body, the water outlet pipe is installed on one side of the submersible sewage pump main body, a central shaft is fixedly connected to the top cover, two groups of protective covers are installed on the central shaft, and the two groups of protective covers can protect the submersible sewage pump main body inside. A filtering component is fixedly installed at the bottom of the two groups of protective covers, and a fastening component is fixedly connected to the central shaft. The fastening component can hoop the two groups of protective covers and the filtering component outside the submersible sewage pump main body.

[0008] In one or more embodiments of the present utility model, the two sets of the protective covers include a first protective cover and a second protective cover. A first protective cover lid is fixedly installed at the top of the first protective cover. A first fixed ring is fixedly installed on one side of the first protective cover lid. The first fixed ring is matched with the central axis. A second protective cover lid is fixedly installed at the top of the second protective cover. A second fixed ring is fixedly installed on one side of the second protective cover lid. The second fixed ring is matched with the central axis.

[0009] In one or more embodiments of the present utility model, a first bayonet is provided on one side of the first protective cover, and the first bayonet is matched with the water outlet pipe. A second bayonet is provided on one side of the second protective cover, and the second bayonet is matched with the water outlet pipe.

[0010] In one or more embodiments of the present utility model, multiple groups of heat dissipation fins are fixedly installed on the inner walls of the first protective cover and the second protective cover, and the multiple groups of heat dissipation fins are attached to the outer shell of the submersible sewage pump main body.

[0011] In one or more embodiments of the present utility model, the filtering assembly includes a first filter basket and a second filter basket. The first filter basket is fixedly installed at the bottom of the first protective cover. The second filter basket is fixedly installed at the bottom of the second protective cover. The first filter basket includes a first outer filter screen, a first inner filter screen, and a first bottom plate. The first bottom plate is fixedly installed at the bottom of the first filter basket. The first outer filter screen and the first inner filter screen are both fixedly installed on the first bottom plate. The second filter basket includes a second outer filter screen, a second inner filter screen, and a second bottom plate. The second bottom plate is fixedly installed at the bottom of the second filter basket. The second outer filter screen and the second inner filter screen are both fixedly installed on the second bottom plate.

[0012] In one or more embodiments of the present utility model, a sealing ring is fixedly connected to the bottom of the submersible sewage pump main body, and the inner walls of the first inner filter screen and the second inner filter screen are respectively attached to the outer wall of the sealing ring.

[0013] In one or more embodiments of the present utility model, the pore diameters of the first outer filter screen and the second outer filter screen are respectively larger than the pore diameters of the first inner filter screen and the second inner filter screen.

[0014] In one or more embodiments of the present utility model, the fastening assembly includes a first support frame and a second support frame. A first rotation hole is provided at the top of the first support frame, and the first rotation hole is matched with the central axis. A third rotation hole is provided at the top of the second support frame, and the third rotation hole is matched with the central axis. A second rotation hole is provided at the bottom of the first support frame. A fourth rotation hole is provided at the bottom of the second support frame. A rotating shaft is rotatably connected in both the second rotation hole and the fourth rotation hole.

[0015] In one or more embodiments of the present utility model, a threaded portion is provided at the top of the central shaft, and a fixing nut is rotatably connected to the threaded portion. The fixing nut can lock and fix the tops of the first support frame and the second support frame.

[0016] In one or more embodiments of the present utility model, two groups of lifting rings are fixedly installed at the top of the first support frame, and two groups of support bases are fixedly installed at the bottoms of both the first support frame and the second support frame.

[0017] Compared with the prior art, by adding a protective cover outside the submersible sewage pump in the present utility model, the pump body does not need to be directly exposed in the wastewater, reducing the probability of chemical pollutants corroding the pump shell and extending the service life of the submersible sewage pump; by adding a detachable filter screen, the cleaning work of the filter screen wall becomes simple and fast, reducing the maintenance time of the pump body and improving the use efficiency of the submersible sewage pump. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural diagram of an industrial wastewater submersible sewage pump in an embodiment of the present utility model;

[0020] Figure 2 Schematic diagram of the structures of the first support frame and the second support frame of an industrial wastewater submersible sewage pump in an embodiment of the present utility model;

[0021] Figure 3 Exploded view of an industrial wastewater submersible sewage pump in an embodiment of the present utility model;

[0022] Figure 4 Exploded view of the first protective cover and the second protective cover of an industrial wastewater submersible sewage pump in an embodiment of the present utility model;

[0023] Figure 5 Exploded view of the first protective cover of an industrial wastewater submersible sewage pump in an embodiment of the present utility model;

[0024] Figure 6 Cross-sectional view of an industrial wastewater submersible sewage pump in an embodiment of the present utility model.

[0025] Main reference numeral descriptions:

[0026] 1. Submersible sewage pump main body; 101. Top cover; 102. Outlet pipe; 103. Drive shaft; 2. Hoisting ring; 3. First protective cover; 301. First protective cover lid; 302. First filter basket; 3021. First outer filter; 3022. First inner filter; 3023. First bottom plate; 303. First fixing ring; 304. First bayonet; 4. Second protective cover; 401. Second protective cover lid; 402. Second filter basket; 4021. Second outer filter; 4022. Second inner filter; 4023. Second bottom plate; 403. Second fixing ring; 404. Second bayonet; 5. First support frame; 501. First rotating hole; 502. Second rotating hole; 6. Second support frame; 601. Third rotating hole; 602. Fourth rotating hole; 7. Sealing ring; 8. Support base; 9. Heat sink; 10. Rotating shaft; 11. Central shaft; 1101. Fixing nut. Detailed implementation manners

[0027] In order to enable those skilled in the art of the present technology to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] As Figures 1 to 4 shown, an industrial wastewater submersible sewage pump in an embodiment of the present utility model includes a submersible sewage pump main body 1, a top cover 101 and an outlet pipe 102. The top cover 101 is fixedly installed at the top end of the submersible sewage pump main body 1, the outlet pipe 102 is installed on one side of the submersible sewage pump main body 1, the drive shaft 103 is installed at the central position of the submersible sewage pump main body 1, and an impeller is also fixedly installed thereon. An inlet is provided at the bottom of the submersible sewage pump main body 1. The drive shaft 103 is driven by a motor to drive the impeller to rotate. Wastewater enters from the inlet and is sucked into the central area of the impeller, and is pushed towards the outlet pipe 102 by centrifugal force and discharged.

[0029] As Figures 1 to 6 shown, a central shaft 11 is fixedly installed on the top cover 101, and two groups of protective covers are fixedly connected to the central shaft 11. The two groups of protective covers include a first protective cover 3 and a second protective cover 4. A first protective cover lid 301 is fixedly installed at the top end of the first protective cover 3, and a first fixing ring 303 is fixedly installed on one side of the first protective cover lid 301. The first fixing ring 303 can be sleeved on the central shaft 11. A second protective cover lid 401 is fixedly installed at the top end of the second protective cover 4, and a second fixing ring 403 is fixedly installed on one side of the second protective cover lid 401. The second fixing ring 403 can be sleeved on the central shaft 11.

[0030] As Figures 3 to 5 shown, the first fixed ring 303 and the second fixed ring 403 are successively sleeved on the central shaft 11, and the first protective cover 3 and the second protective cover 4 are combined into an integral protective cover body to form a seal. The protective cover body protects the sewage submersible pump main body 1 inside, preventing the sewage submersible pump main body 1 from being attached by wastewater pollutants when immersed in wastewater, and avoiding corrosion and damage of the sewage submersible pump main body 1 during long-term operation in wastewater.

[0031] Preferably, in this embodiment, the first protective cover 3 and the second protective cover 4 are ceramic first protective cover 3 and ceramic second protective cover 4. The ceramic protective cover has good chemical corrosion resistance and can protect the sewage submersible pump main body 1 by the first protective cover 3 and the second protective cover 4 for a long time in a strong corrosion environment.

[0032] Moreover, by the way of sleeving the first fixed ring 303 and the second fixed ring 403 on the central shaft 11, when the sewage submersible pump main body 1 is repaired on water, the first protective cover 3 and the second protective cover 4 can be quickly removed, which is simple and convenient.

[0033] As Figures 3 to 6 shown, a plurality of groups of heat dissipation fins 9 are fixedly installed on the inner walls of the first protective cover 3 and the second protective cover 4. The plurality of groups of heat dissipation fins 9 are attached to the outer wall of the sewage submersible pump main body 1. The plurality of groups of heat dissipation fins 9 can dissipate heat from the sewage submersible pump main body 1 and can support the sewage submersible pump main body 1 to a certain extent. The heat generated during operation is dissipated from the two protective cover bodies through the plurality of groups of heat dissipation fins 9, preventing the sewage submersible pump main body 1 from overheating due to being protected inside the cover and avoiding affecting the normal drainage of the sewage submersible pump main body 1.

[0034] As Figure 1 shown, filtering components are fixedly installed at the bottoms of the first protective cover 3 and the second protective cover 4 respectively. The filtering components include a first filter basket 302 and a second filter basket 402. The first filter basket 302 and the second filter basket 402 can be combined into an integral filter basket.

[0035] The first filter basket 302 includes a first outer filter net 3021, a first inner filter net 3022 and a first bottom plate 3023. The first bottom plate 3023 is fixedly installed at the bottom of the first filter basket 302. The first outer filter net 3021 and the first inner filter net 3022 are respectively fixedly installed on the first bottom plate 3023. Wastewater enters the inside of the sewage submersible pump main body 1 successively through the first outer filter net 3021 and the first inner filter net 3022.

[0036] The second filter basket 402 includes a second outer filter screen 4021, a second inner filter screen 4022 and a second bottom plate 4023. The second bottom plate 4023 is fixedly installed at the bottom of the second filter basket 402, and the second outer filter screen 4021 and the second inner filter screen 4022 are respectively fixedly installed on the second bottom plate 4023. Wastewater enters the inside of the submersible pump main body 1 successively through the second outer filter screen 4021 and the second inner filter screen 4022. The double-layer filter screen has a stronger pollution collection capacity. The outer filter screen can filter out large particle pollutants, and the inner filter screen can filter out fine pollutants, making the filtering effect more thorough.

[0037] As Figure 6 shown, a sealing ring 7 is fixedly installed at the bottom of the submersible pump main body 1. The inner walls of the first inner filter screen 3022 and the second inner filter screen 4022 are respectively attached to the outer wall of the sealing ring 7. The sealing ring 7 blocks the wastewater entering from the first filter basket 302 and the second filter basket 402, preventing the wastewater from entering the inside of the protective cover body through the tops of the first filter basket 302 and the second filter basket 402.

[0038] Similarly, when the first protective cover 3 and the second protective cover 4 are disassembled on the water, the first filter basket 302 and the second filter basket 402 are separated synchronously, which facilitates the staff to clean the first filter basket 302 and the second filter basket 402, reduces the trouble of removing the filter screen on the submersible pump main body 1 for cleaning, and saves time and effort.

[0039] As Figure 4 shown, a first bayonet 304 is provided on one side of the first protective cover 3. The first bayonet 304 is matched with the water outlet pipe 102. A second bayonet 404 is provided on one side of the second protective cover 4. The second bayonet 404 is matched with the water outlet pipe 102. The first bayonet 304 and the second bayonet 404 form a set of circular openings and seal the water outlet pipe 102. Wastewater cannot enter the protective cover body through the gap of the water outlet pipe 102, and the water outlet pipe 102 can also extend from the circular opening for normal drainage work.

[0040] As Figures 1 to 3 shown, a fastening assembly is installed outside the first protective cover 3 and the second protective cover 4. The fastening assembly includes a first support frame 5 and a second support frame 6. A first rotation hole 501 is provided at the top of the first support frame 5, and a third rotation hole 601 is provided at the top of the second support frame 6. Both the first rotation hole 501 and the third rotation hole 601 are rotatably connected to the central shaft 11, and the top of the first support frame 5 and the top of the second support frame 6 are cross-connected on the central shaft 11.

[0041] A second rotation hole 502 is provided at the bottom of the first support frame 5, and a fourth rotation hole 602 is provided at the bottom of the second support frame 6. A rotating shaft 10 is rotatably connected in both the second rotation hole 502 and the fourth rotation hole 602. The rotating shaft 10 can fix the second rotation hole 502 and the fourth rotation hole 602 together, and at the same time enable the second rotation hole 502 and the fourth rotation hole 602 to rotate through the rotating shaft 10, and enable the bottom of the first support frame 5 to be cross-connected with the bottom of the second support frame 6.

[0042] A threaded portion is provided at the top of the central shaft 11, and a fixing nut 1101 is rotatably connected to the threaded portion. The first support frame 5 and the second support frame 6 are installed outside the first protective cover 3 and the second protective cover 4. By tightening and fixing the fixing nut 1101, the first support frame 5 and the second support frame 6 make the combination of the first protective cover 3 and the second protective cover 4 closer, prevent gaps from appearing between the first protective cover 3 and the second protective cover 4, avoid wastewater from entering through the gaps, and improve the underwater protection of the two groups of protective covers for the submersible sewage pump main body 1.

[0043] As Figure 2 and Figure 3 As shown, lifting rings 2 are fixedly welded on both sides of the top of the first support frame 5. The steel wire ropes are fixed on the two groups of lifting rings 2, which is convenient for putting the submersible sewage pump main body 1 into the wastewater pool. Two groups of support bases 8 are fixedly installed at the bottoms of the first support frame 5 and the second support frame 6. The four groups of support bases 8 can support the bottom of the submersible sewage pump main body 1, making it more stable when placed underwater.

[0044] During use, before the submersible sewage pump main body 1 performs underwater operations, the first protective cover 3 and the second protective cover 4 are put on the submersible sewage pump main body 1, and the two groups of protective covers are fixed outside the submersible sewage pump main body 1 through the first support frame 5 and the second support frame 6. The first filter basket 302 and the second filter basket 402 are synchronously located at the bottom of the submersible sewage pump main body 1. When the submersible sewage pump main body 1 performs underwater operations, the two groups of protective covers can prevent wastewater from contacting the submersible sewage pump main body 1, prevent pollutants from corroding the submersible sewage pump main body 1 and causing damage, and extend the service life of the submersible sewage pump main body 1; when the submersible sewage pump needs to be repaired above water, the two groups of protective covers are removed from the submersible sewage pump main body 1, and the two groups of filter baskets are synchronously separated. Workers can perform normal maintenance work and can clean the two groups of filter baskets, without having to separately remove the filter nets for cleaning, making the maintenance work of the submersible sewage pump main body 1 simple and fast, and improving the maintenance efficiency.

[0045] By adding a protective cover outside the submersible sewage pump, the present utility model enables the pump body not to be directly exposed in the wastewater, reduces the probability of chemical pollutants corroding the pump shell, and extends the service life of the submersible sewage pump; by adding a detachable filter net, the cleaning work of the filter net wall becomes simple and fast, reduces the maintenance time of the pump body, and improves the use efficiency of the submersible sewage pump.

[0046] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An industrial wastewater submersible sewage pump, comprising a submersible sewage pump body, a top cover and a water outlet pipe, the top cover is installed on the submersible sewage pump body, and the water outlet pipe is installed on one side of the submersible sewage pump body, characterized in that, A central axis is fixedly connected to the top cover, and two groups of protective covers are installed on the central axis. The two groups of protective covers can protect the submersible sewage pump body inside. Filter components are fixedly installed on the bottom of the two groups of protective covers. A fastening component is fixedly connected to the central axis, and the fastening component can clamp the two groups of protective covers and the filter components to the outside of the submersible sewage pump body.

2. The submersible sewage pump for industrial wastewater according to claim 1, characterized in that, The two groups of protective covers include a first protective cover and a second protective cover, wherein a first protective cover cover is fixedly installed on the top of the first protective cover, a first fixed ring is fixedly installed on one side of the first protective cover cover, and the first fixed ring matches the central axis, and a second protective cover cover is fixedly installed on the top of the second protective cover, a second fixed ring is fixedly installed on one side of the second protective cover cover, and the second fixed ring matches the central axis.

3. An industrial wastewater submersible pump according to claim 2, characterized in that, A first bayonet is provided on one side of the first protective cover, and the first bayonet matches the water outlet pipe. A second bayonet is provided on one side of the second protective cover, and the second bayonet matches the water outlet pipe.

4. The submersible sewage pump for industrial wastewater according to claim 2, wherein, A plurality of groups of heat sinks are fixedly mounted on the inner wall of the first protective cover and the inner wall of the second protective cover, and the plurality of groups of heat sinks are fitted to the outer shell of the submersible sewage pump body.

5. The submersible sewage pump for industrial wastewater according to claim 2, wherein The filter assembly includes a first filter basket and a second filter basket, the first filter basket is fixedly mounted on the bottom of the first protective cover, the second filter basket is fixedly mounted on the bottom of the second protective cover, the first filter basket includes a first outer filter screen, a first inner filter screen and a first bottom plate, the first bottom plate is fixedly mounted on the bottom of the first filter basket, the first outer filter screen and the first inner filter screen are both fixedly mounted on the first bottom plate, the second filter basket includes a second outer filter screen, a second inner filter screen and a second bottom plate, the second bottom plate is fixedly mounted on the bottom of the second filter basket, and the second outer filter screen and the second inner filter screen are both fixedly mounted on the second bottom plate.

6. The submersible sewage pump for industrial wastewater according to claim 5, wherein A sealing ring is fixedly connected to the bottom of the submersible sewage pump body, and the inner walls of the first inner filter screen and the second inner filter screen are respectively fitted with the outer walls of the sealing ring.

7. An industrial wastewater submersible pump according to any one of claims 5 or 6, characterized in that, The apertures of the first outer filter screen and the second outer filter screen are respectively larger than the apertures of the first inner filter screen and the second inner filter screen.

8. An industrial wastewater submersible pump according to claim 1, wherein, The fastening assembly includes a first supporting frame and a second supporting frame. The first supporting frame has a first rotating hole on the top, which matches the central axis. The second supporting frame has a third rotating hole on the top, which matches the central axis. The first supporting frame has a second rotating hole on the bottom, and the second supporting frame has a fourth rotating hole on the bottom. The second rotating hole and the fourth rotating hole are both rotatably connected with rotating shafts.

9. The submersible sewage pump for industrial wastewater according to claim 8, wherein The top end of the central shaft is provided with a threaded portion, and a fixing nut is rotatably connected to the threaded portion. The fixing nut can lock and fix the top of the first supporting frame and the top of the second supporting frame.

10. The submersible sewage pump for industrial wastewater according to claim 8, characterized in that, Two sets of lifting rings are fixedly installed on the top of the first supporting frame, and two sets of supporting bases are fixedly installed on the bottom of the first supporting frame and the second supporting frame.

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