CN209959475U

CN209959475U - All-plastic corrosion-resistant long-life vertical submerged pump

Info

Publication number: CN209959475U
Application number: CN201920412824.8U
Authority: CN
Inventors: 任振林; 陈春生
Original assignee: Honghao Pump Industry Co Ltd
Current assignee: Honghao Pump Industry Co Ltd
Priority date: 2019-03-29
Filing date: 2019-03-29
Publication date: 2020-01-17
Anticipated expiration: 2029-03-29

Abstract

The utility model belongs to the technical field of the pump is made, a vertical submerged pump of plastic corrosion resistant long-life is disclosed, because dielectric characteristic and installation condition cause the life-span of pump short among the solution prior art, the higher problem of pump cost, this submerged pump includes the pump shaft, the upper end of pump shaft is connected with the motor, the bottom plate is equipped with on the upper portion of pump shaft, the bearing box, the impeller is equipped with to the lower extreme of pump shaft, the shaft end of impeller one side pump shaft is equipped with impeller seal, the epaxial main seal subassembly that is equipped with of pump of impeller opposite side, the impeller is equipped with the plastic corrosion resistant pump body outward, one side of the plastic corrosion resistant pump body is equipped with pump outlet flange, the upper end threaded connection of the plastic corrosion resistant pump body has the stand, the lower extreme threaded connection of the plastic corrosion resistant pump body has plastic corrosion resistant pump cover. The utility model discloses prevented because the pump that the corruption of fastener caused from damaging, effectively improved the life of submerged pump.

Description

All-plastic corrosion-resistant long-life vertical submerged pump

Technical Field

The utility model relates to a technical field is made to the pump, concretely relates to plastic corrosion resistant long-life vertical submerged pump.

Background

The method is characterized in that pits are arranged in workshops in the industries of nonferrous smelting, petrochemical industry and the like, the purpose is to collect overflow media and wash sewage on the ground and equipment, then the sewage is uniformly sent into a conveying tank for continuous utilization, other reaction tanks are not suitable for forming holes in the tank bottom and the tank wall, pumps can be only arranged on the tank top, the working conditions are usually completed by using submerged pumps, namely a stainless steel submerged pump and a nonmetallic submerged pump, the types of acid are different, if stainless steel is used, the types of stainless steel are more required, because the stainless steel of a sulfuric acid resistant system and a stainless acid resistant system are different in corrosivity along with the difference of temperature and concentration, the required stainless steel is different, when the stainless steel is adopted, the acid is more complicated, what kind of acid needs to be separated, the component of the common acid in the waste liquid is more complicated and is not single acid, but the mixed liquid of several kinds of acid, so the submerged pump of stainless steel material is because the material is selected inaccurately, and easy because corrosion damage, if with special alloy, then the cost is very high, the submerged pump of non-metallic material though can be able to bear various acid, still use the stainless steel bolt in the hookup department of the pump body and support, the stainless steel bolt is used to export flange department, still have the bolt corruption and cause the problem of pump damage, cause the life of pump to be short, the intensity of support post is not good in addition, the pump is easy to vibrate, the bearing easily generates heat, so life is also shorter. The prior art fails to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art because dielectric characteristic and installation condition cause the life-span of pump short, the higher problem of pump cost ratio provides a vertical submerged pump of plastic corrosion resistant long-life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a full-plastic corrosion-resistant long-life vertical submerged pump comprises a pump shaft, a motor is connected with the upper end of the pump shaft, a bottom plate is arranged at the upper part of the pump shaft, the bearing box, the top of bearing box can be dismantled and be connected with the support, the top of support can be dismantled with the bottom of motor and be connected, the bottom and the bottom plate of bearing box can be dismantled and be connected, the impeller is equipped with to the lower extreme of pump shaft, impeller seal is equipped with to the axle head of impeller one side pump shaft, main seal assembly is equipped with to the pump shaft of impeller opposite side, the impeller is equipped with the plastic corrosion resistant pump body outward, one side of the plastic corrosion resistant pump body is equipped with pump outlet flange, pump outlet flange is connected with the liquid outlet pipe subassembly through plastic corrosion resistant flange cutting ferrule, the upper end threaded connection of the plastic corrosion resistant pump body has the stand, the upper end and the bottom plate of stand can be dismantled and be connected, the lower extreme threaded connection of the plastic corrosion.

Furthermore, the lower end of the all-plastic corrosion-resistant pump cover is provided with a connecting internal thread section, and the lower end of the all-plastic corrosion-resistant pump cover is in threaded connection with a filter cover.

Furthermore, the stand column comprises a stand column barrel, a stand column flange detachably connected with the bottom plate is fixedly arranged at the upper end of the stand column barrel, a stand column ring plate is fixedly arranged at the lower end of the stand column barrel, a connecting internal thread section is arranged on the inner side of the stand column ring plate, and the connecting internal thread section is connected with a connecting internal thread section arranged at the upper end of the all-plastic corrosion-resistant pump body.

Further, the drain pipe subassembly includes the drain pipe, and the upper end of drain pipe passes the fixed plate that sets up on the bottom plate, and the upper end of drain pipe is equipped with flange, and the lower extreme of drain pipe is equipped with the drain pipe flange, is equipped with gland nut on the drain pipe of drain pipe flange one side, and the opposite side of drain pipe flange is close to pump outlet flange, and the drain pipe flange and pump outlet flange outward the joint have plastic corrosion resistant flange cutting ferrule, is equipped with the external screw thread on the plastic corrosion resistant flange cutting ferrule, and plastic corrosion resistant flange cutting ferrule and gland nut threaded connection.

Furthermore, the main sealing assembly comprises a shaft sleeve arranged on the pump shaft, the lower end of the shaft sleeve is in contact with one end of the impeller, a guide bearing, a lip-shaped seal and a gland are sequentially arranged on the lower portion of the shaft sleeve from bottom to top, a liquid guide groove is formed in an inner cavity of the guide bearing, a sheath assembly is further arranged at the upper end of the shaft sleeve, and the sheath assembly is arranged on the pump shaft.

Further, the sheath subassembly includes the sheath barrel of installing on the pump shaft, and the lower extreme of sheath barrel is fixed with the sheath flange, and the bottom of sheath flange contacts with the axle sleeve.

Furthermore, the impeller seal comprises a locking nut arranged at the end part of the pump shaft, a seal split cap is arranged on the outer side of the locking nut, and a split cap pad is arranged at the contact part of the seal split cap and the impeller.

Furthermore, the stand is provided with a reinforcing rib, the stand cylinder is provided with a liquid through hole, the upper portion and the lower portion of the stand cylinder are both provided with a cylinder thread section, the cylinder thread section on the upper portion is provided with a stand flange, the bottom of the stand flange is welded with the stand cylinder, the cylinder thread section on the lower portion is provided with a stand ring plate, and the top of the stand ring plate is welded with the stand cylinder.

Furthermore, the inner side of the upright post ring plate is also provided with a radial positioning hole which is positioned below the connecting inner thread section, and the upper part of the full-plastic corrosion-resistant pump body is provided with a boss matched with the radial positioning hole.

Furthermore, a first sealing gasket is arranged at the contact position of the shaft sleeve and the sheath flange, and a second sealing gasket is arranged at the contact position of the shaft sleeve and the impeller.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a plastic corrosion resistant long-life vertical submerged pump's plastic corrosion resistant pump body has the drain pipe subassembly through plastic corrosion resistant flange cutting ferrule connection, has avoided the bolt-up connected mode among the prior art, and the upper end of the plastic corrosion resistant pump body and stand pass through cooperation threaded connection, have avoided the pump body to be connected through fastening bolt with the stand and cause the hydraulic pump to corrode the bolt and then damage the submerged pump with the material contact for a long time, the utility model discloses prevent the pump damage that causes because the corruption of bolt, effectively improved the life of submerged pump.

The utility model discloses a lower extreme of plastic corrosion resistant pump cover is equipped with connects interior screw thread section, is connected with the filter mantle through connecting interior screw thread section, has both guaranteed the joint strength of plastic corrosion resistant pump cover and filter mantle, has avoided utilizing bolted connection to cause the pump to damage owing to the corruption of bolt again for a long time to guarantee the life of submerged pump, can avoid massive debris to enter into the pump body and the runner of stifled dead impeller through the filter mantle again, and cause the pump flow to reduce or damage the pump.

The upright column of the utility model is connected with the pump body and the bottom plate, and the upright column is made of high-strength polypropylene, thereby improving the corrosion resistance and the strength; the stand flange of stand barrel is connected with the bottom plate, and the installation is dismantled comparatively conveniently, and the connection internal thread section on the stand ring plate of stand barrel is connected with the connection internal thread section that sets up in plastic corrosion resistant pump body upper end, and the department of contact with liquid has both guaranteed joint strength, has avoided the corrosion damage that utilizes other connecting pieces to bring again.

The utility model discloses a lower extreme of drain pipe is connected with the return bend, and the tip of return bend is equipped with the drain pipe flange, is equipped with plastic corrosion resistant flange cutting ferrule at the drain pipe flange outside pump outlet flange card, and plastic corrosion resistant flange cutting ferrule and gland nut will go out the drain pipe flange and pump outlet flange joint together to through threaded connection, realized being connected with the no fastener of drain pipe, the effectual pump that causes because the corruption of fastener damages.

The utility model discloses a main seal assembly's axle sleeve, guide bearing, lip seal, gland seal all to week, and guide bearing plays the auxiliary stay effect, has improved the sealed life-span of pump, and guide bearing adopts the fine tetrafluoro packing graphite material of wear-resisting and corrosion resistance, has improved the stability of submerged pump major axis, has effectively improved guide bearing's life-span, is equipped with the liquid guide groove at guide bearing's inner chamber, is favorable to cooling shaft sleeve, takes away the friction heat, has improved guide bearing's life-span.

The utility model discloses a sheath barrel sheath adopts the high strength polypropylene material, has improved anticorrosive and intensity, has improved sealing performance simultaneously.

The utility model discloses a through at pump shaft tip installation lock nut with the impeller location on the pump shaft, and seal the impeller terminal surface through sealed the cap of piecing together, prevent that the medium from getting into and corroding the pump shaft.

The utility model discloses a be equipped with the strengthening rib on the stand, improved the intensity of stand, and be equipped with the liquid through hole on the stand barrel, balanced the radial pressure of stand, improved the stability of stand, improved the life-span of pump. And cylinder thread sections are arranged at the upper end and the lower end of the upright cylinder, and the upright cylinder is connected with the upright flange and the upright ring plate through threads and then welded, so that the strength of the upright is ensured.

The utility model discloses an inboard of stand crown plate still is equipped with radial locating hole, through the cooperation installation of radial locating hole and the plastic corrosion resistant pump body, has guaranteed the concentricity of the plastic corrosion resistant pump body and stand.

The utility model discloses a contact department sets up first sealed pad with the sheath flange at the axle sleeve, is equipped with the sealed pad of second in axle sleeve and impeller contact department, further seals through sealed the pad.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the stand column of the present invention.

Fig. 3 is a partially enlarged schematic view of fig. 1 according to the present invention.

Fig. 4 is a schematic structural view of the sheath of the present invention.

Fig. 5 is a main sectional view of the guide bearing of the present invention.

Fig. 6 is a top view of the guide bearing of the present invention.

Fig. 7 is a schematic structural view of the liquid outlet pipe assembly of the present invention.

Fig. 8 is the structure schematic diagram of the all-plastic corrosion-resistant flange cutting ferrule of the utility model.

The reference numerals have the following meanings: 1. a motor; 2. a coupling; 3. a support; 4. a bearing housing; 5. a base plate; 6. a column; 7. a pump shaft; 8. a jacket assembly; 9. a first gasket; 10. a shaft sleeve; 11. a gland; 12. lip seal; 13. a guide bearing; 14. a second gasket; 15. an impeller; 16. a full plastic corrosion resistant pump body; 17. splicing a cap pad; 18. locking the nut; 19. sealing the spliced cap; 20. a full plastic corrosion resistant pump cover; 21. a filter housing; 22. a full-plastic corrosion-resistant flange sleeve; 23. a liquid outlet pipe assembly; 24. a fixing plate; 25. a column flange; 26. reinforcing ribs; 27. a column body; 28. a column ring plate; 29. connecting the internal thread section; 30. a barrel thread section; 31. a liquid through hole; 32. radial positioning holes; 33. a sheath cylinder; 34. a sheath flange; 35. a liquid guide groove; 36. a liquid outlet pipe; 37. a compression nut; 38. and (4) a liquid outlet pipe flange.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-8, a full-plastic corrosion-resistant long-life vertical submerged pump comprises a pump shaft 7, the upper end of the pump shaft 7 is connected with a motor 1 through a coupling 2, a bottom plate 5 and a bearing box 4 are mounted on the upper portion of the pump shaft 7, the top of the bearing box 4 is connected with a support 3 through a bolt, the top of the support 3 is connected with the bottom of the motor 1 through a bolt, bearings and seals are mounted on the upper portion and the lower portion of the bearing box 4, the bottom of the bearing box 4 is connected with the bottom plate 5 through a bolt, an impeller 15 is mounted at the lower end of the pump shaft 7, an impeller seal is mounted at the shaft end of the pump shaft 7 on one side of the impeller 15 and comprises a locking nut 18 mounted at the end portion of the pump shaft 7, a sealing split cap 19 is mounted outside. The pump shaft 7 on the other side of the impeller 15 is provided with a main sealing assembly, the main sealing assembly comprises a shaft sleeve 10 installed on the pump shaft 7, the shaft sleeve 10 is made of silicon carbide materials, the lower end of the shaft sleeve 10 is in contact with one end of the impeller 15, the lower portion of the shaft sleeve 10 is sequentially provided with a guide bearing 13, a lip seal 12 and a gland 11 from bottom to top, the guide bearing 13 is made of tetrafluoro filled graphite materials with good wear resistance and corrosion resistance, 3 liquid guide grooves 35 are uniformly distributed in an inner cavity of the guide bearing 13, the upper end of the shaft sleeve 10 is further provided with a sheath assembly 8, a first sealing gasket 9 is arranged at the contact position of the shaft sleeve 10 and a sheath flange 34, and a second sealing. And a sheath assembly 8 is mounted on the pump shaft 7. The sheath assembly 8 comprises a sheath cylinder 33 installed on the pump shaft 7, and the sheath cylinder 33 is made of high-strength polypropylene, so that the corrosion resistance and the strength are improved, and the sealing performance is improved. A sheath flange 34 is fixed to the lower end of the sheath cylinder 33, and the bottom of the sheath flange 34 contacts the shaft sleeve 10.

Impeller 15 is equipped with plastic corrosion resistant pump body 16 outward, one side of plastic corrosion resistant pump body 16 is equipped with pump outlet flange, pump outlet flange is connected with drain pipe subassembly 23 through plastic corrosion resistant flange cutting ferrule 22, drain pipe subassembly 23 includes drain pipe 36, the fixed plate 24 of bolt-up on bottom plate 5 is passed to the upper end of drain pipe 36, fix a position drain pipe 36 with fixed plate 24, prevent the vibration and sway, and the upper end welding of drain pipe 36 has flange, the lower extreme welding of drain pipe 36 has the return bend, drain pipe flange 38 has been welded to the tip of return bend, gland nut 37 is equipped with on the drain pipe 36 of drain pipe flange 38 one side, before welding drain pipe flange 38, earlier adorn gland nut 37 on drain pipe 36, and convenient installation and dismantlement.

The other side of the liquid outlet pipe flange 38 is close to the pump outlet flange, a full-plastic corrosion-resistant flange clamping sleeve 22 is clamped outside the liquid outlet pipe flange 38 and the pump outlet flange, external threads are arranged on the full-plastic corrosion-resistant flange clamping sleeve 22, and the full-plastic corrosion-resistant flange clamping sleeve 22 is connected with the compression nut 37 in a threaded fit mode. The upper end of the all-plastic corrosion-resistant pump body 16 is in threaded connection with the upright post 6, and the upright post 6 is made of high-strength polypropylene, so that the corrosion resistance and the strength are improved; the upper end of the upright post 6 is connected with the bottom plate 5 through a bolt, the lower end of the all-plastic corrosion-resistant pump body 16 is provided with an internal thread section, the all-plastic corrosion-resistant pump cover 20 is provided with a connecting internal thread section matched with the internal thread section, the lower end of the all-plastic corrosion-resistant pump cover 20 is provided with a pump inlet, the excircle of the lower end of the all-plastic corrosion-resistant pump cover 20 is provided with an external thread end, the filter cover 21 is provided with an internal thread section, and the all-plastic corrosion-resistant pump cover 20 is connected.

The stand 6 includes stand barrel 27, and the upper portion and the lower part of stand barrel 27 all are equipped with barrel screw thread section 30, install stand flange 25 on the barrel screw thread section 30 on upper portion, and stand flange 25 passes through bolted connection with bottom plate 5, and the bottom and the stand barrel 27 welding of stand flange 25, installs stand ring plate 28 on the barrel screw thread section 30 of lower part, and the top and the stand barrel 27 welding of stand ring plate 28. The inner side of the upright post ring plate 28 is provided with a connecting internal thread section 29, and the connecting internal thread section 29 is matched and connected with a connecting internal thread section arranged at the upper end of the full-plastic corrosion-resistant pump body 16. The upright post 6 is provided with a reinforcing rib 26, the upright post barrel 27 is provided with a liquid through hole 31, the inner side of the upright post annular plate 28 is also provided with a radial positioning hole 32, the radial positioning hole 32 is positioned below the connecting internal thread section 29, and the upper part of the all-plastic corrosion-resistant pump body 16 is provided with a boss matched with the radial positioning hole 32.

Install the submerged pump in the cover or the pit department of treating the drawing before the work, it is fixed with bottom plate 5 and cover or pit support to utilize the bolt, pump inlet immerses under the liquid, open motor 1, under motor 1's effect, pump shaft 7 begins to rotate, drive impeller 15 work, the material filters behind the large granule impurity through filter mantle 21 and gets into plastic corrosion resistant pump cover 20 from the pump inlet, later get into behind the inlet of impeller 15 and beat the material to drain pipe 36 from the export of impeller 15 in, later carry to next process again. The full-plastic corrosion-resistant pump body 16 is connected with the upright post 6, the full-plastic corrosion-resistant pump body 16 is connected with the full-plastic corrosion-resistant pump cover 20, the full-plastic corrosion-resistant pump cover 20 is connected with the filter cover 21 through matched threads, and the pump outlet flange is connected with the liquid outlet pipe assembly 23 through the full-plastic corrosion-resistant flange clamping sleeve 22 and the compression nut 37, so that the phenomenon that the submerged pump is contacted with materials for a long time through the connection of fasteners to corrode the fasteners to further damage the submerged pump is avoided, the pump damage caused by the corrosion of the fasteners is prevented, and the service life of the submerged pump is effectively prolonged.

Claims

1. The utility model provides a vertical submerged pump of plastic corrosion resistant long-life, including pump shaft (7), the upper end of pump shaft (7) is connected with motor (1), bottom plate (5) are equipped with on the upper portion of pump shaft (7), bearing box (4), the top of bearing box (4) can be dismantled and be connected with support (3), the top of support (3) can be dismantled with the bottom of motor (1) and be connected, the bottom and bottom plate (5) of bearing box (4) can be dismantled and be connected, impeller (15) are equipped with to the lower extreme of pump shaft (7), impeller (15) one side shaft head of pump shaft (7) is equipped with impeller seal, impeller (15) are equipped with main seal assembly on pump shaft (7) of opposite side, impeller (15) are equipped with plastic corrosion resistant pump body (16) outward, one side of plastic corrosion resistant pump body (16) is equipped: the pump outlet flange is connected with a liquid outlet pipe assembly (23) through an all-plastic corrosion-resistant flange clamping sleeve (22), the upper end of the all-plastic corrosion-resistant pump body (16) is in threaded connection with a stand column (6), the upper end of the stand column (6) is detachably connected with a bottom plate (5), the lower end of the all-plastic corrosion-resistant pump body (16) is in threaded connection with an all-plastic corrosion-resistant pump cover (20), and the lower end of the all-plastic corrosion-resistant pump cover (20) is provided with a pump inlet.

2. The all-plastic corrosion-resistant long-life vertical submerged pump as claimed in claim 1, wherein: the lower end of the all-plastic corrosion-resistant pump cover (20) is provided with a connecting internal thread section, and the lower end of the all-plastic corrosion-resistant pump cover (20) is in threaded connection with a filter cover (21).

3. The all-plastic corrosion-resistant long-life vertical submerged pump as claimed in claim 1 or 2, wherein: the upright column (6) comprises an upright column barrel (27), an upright column flange (25) detachably connected with the bottom plate (5) is fixedly arranged at the upper end of the upright column barrel (27), an upright column annular plate (28) is fixedly arranged at the lower end of the upright column barrel (27), a connecting internal thread section (29) is arranged on the inner side of the upright column annular plate (28), and the connecting internal thread section (29) is connected with a connecting internal thread section arranged at the upper end of the all-plastic corrosion-resistant pump body (16).

4. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 3, which is characterized in that: liquid outlet pipe assembly (23) includes drain pipe (36), fixed plate (24) of setting on bottom plate (5) are passed to the upper end of drain pipe (36), and the upper end of drain pipe (36) is equipped with flange, the lower extreme of drain pipe (36) is equipped with liquid outlet pipe flange (38), gland nut (37) are equipped with on drain pipe (36) of drain pipe flange (38) one side, the opposite side of drain pipe flange (38) is close to pump outlet flange, and drain pipe flange (38) and pump outlet flange outward the card be equipped with plastic corrosion resistant flange cutting ferrule (22), be equipped with the external screw thread on plastic corrosion resistant flange cutting ferrule (22), and plastic corrosion resistant flange cutting ferrule (22) and gland nut (37) threaded connection.

5. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 4, which is characterized in that: the main seal assembly comprises a shaft sleeve (10) arranged on a pump shaft (7), the lower end of the shaft sleeve (10) is in contact with one end of an impeller (15), a guide bearing (13), a lip seal (12) and a gland (11) are sequentially arranged on the lower portion of the shaft sleeve (10) from bottom to top, a liquid guide groove (35) is formed in an inner cavity of the guide bearing (13), a sheath assembly (8) is further arranged at the upper end of the shaft sleeve (10), and the sheath assembly (8) is arranged on the pump shaft (7).

6. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 5, which is characterized in that: the protective sleeve component (8) comprises a protective sleeve barrel (33) arranged on the pump shaft (7), a protective sleeve flange (34) is fixed at the lower end of the protective sleeve barrel (33), and the bottom of the protective sleeve flange (34) is in contact with the shaft sleeve (10).

7. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 6, which is characterized in that: the impeller seal comprises a locking nut (18) arranged at the end part of the pump shaft (7), a sealing split cap (19) is arranged outside the locking nut (18), and a split cap pad (17) is arranged at the contact part of the sealing split cap (19) and the impeller (15).

8. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 7, which is characterized in that: be equipped with strengthening rib (26) on stand (6), be equipped with through liquid hole (31) on stand barrel (27), the upper portion and the lower part of stand barrel (27) all are equipped with barrel screw thread section (30), install stand flange (25) on barrel screw thread section (30) on upper portion, and the bottom and the stand barrel (27) welding of stand flange (25), install stand crown plate (28) on barrel screw thread section (30) of lower part, and the top and the stand barrel (27) welding of stand crown plate (28).

9. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 3, which is characterized in that: the inner side of the upright post ring plate (28) is also provided with a radial positioning hole (32), the radial positioning hole (32) is positioned below the connecting internal thread section (29), and the upper part of the all-plastic corrosion-resistant pump body (16) is provided with a boss matched with the radial positioning hole (32).

10. The all-plastic corrosion-resistant long-life vertical submerged pump of claim 6, which is characterized in that: a first sealing gasket (9) is arranged at the contact position of the shaft sleeve (10) and the sheath flange (34), and a second sealing gasket (14) is arranged at the contact position of the shaft sleeve (10) and the impeller (15).