CN115355179A

CN115355179A - Energy-saving method and energy-saving device for adjusting front guide vane of centrifugal pump

Info

Publication number: CN115355179A
Application number: CN202211028728.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-18

Abstract

The invention belongs to the field of general mechanical energy conservation, and particularly relates to a centrifugal pump front guide vane adjusting energy-saving method and an energy-saving device, which comprise a U-shaped frame, a rotating rod rotatably connected in the U-shaped frame, a rotating disc fixedly sleeved on the outer wall of the rotating rod, a liquid inlet pipe and a clamping assembly, wherein the liquid inlet pipe and the clamping assembly are slidably penetrated in the U-shaped frame, the clamping assembly is sleeved on the outer wall of the rotating rod and used for clamping the rotating disc, and the replacing assembly is arranged in the rotating disc.

Description

Energy-saving method and energy-saving device for adjusting front guide vane of centrifugal pump

Technical Field

The invention relates to the technical field of general mechanical energy conservation, in particular to a centrifugal pump front guide vane adjusting energy-saving device and an energy-saving method.

Background

Centrifugal pumps are a general purpose machine that has a wide range of applications but also consumes a large amount of energy. The centrifugal pump has the advantages of strong adaptability to flow and conveying media, small volume, simple structure, easy operation, low cost and the like, and is widely applied to the industrial and agricultural fields.

However, the centrifugal pump in the prior art still has the following defects:

1. when the centrifugal pump is used, the impellers required to be selected are different due to different viscosities of the corresponding liquids, so that the same centrifugal pump cannot be suitable for being used in different scenes;

2. when adjusting guide vanes, mostly the angle of guide vanes is adjusted through manual work by experience, and the guide vanes can not be accurately adjusted according to the specific conditions of water flow, so that the efficiency of a pump is influenced, and energy consumption is caused.

Aiming at the problems, the invention provides a device and a method for adjusting and saving energy of a front guide vane of a centrifugal pump.

Disclosure of Invention

The invention provides an energy-saving method and an energy-saving device for adjusting a front guide vane of a centrifugal pump, which solve the defects that the same centrifugal pump cannot be suitable for different scenes and cannot adjust a guide vane according to the specific condition of water flow in the prior art.

The invention provides the following technical scheme:

the utility model provides a leading stator of centrifugal pump adjusts economizer, includes:

the U-shaped frame is rotatably connected with a rotating rod in the U-shaped frame, a rotating disc is fixedly sleeved on the outer wall of the rotating rod, and a liquid inlet pipe penetrates through the U-shaped frame in a sliding manner;

the clamping component is sleeved on the outer wall of the rotating rod and used for clamping the rotating disc;

the replacing component is arranged in the rotating disc and is used for operating aiming at liquids with different viscosities;

and the adjusting assembly is arranged in the liquid inlet pipe and used for improving the operating efficiency of different operating points in the operating range.

In a possible design, the centre gripping subassembly establishes first splint and the second splint at the dwang outer wall including the cover, and first splint and second splint are located the both sides of rolling disc, and the feed liquor pipe is close to the fixed first splint that runs through of one end of rolling disc, the second splint internal rotation runs through there is the slide bar, the U type frame internal rotation is connected with the two-way screw rod that the screw thread runs through first splint and second splint, and first splint and second splint are located the positive and negative screw thread section of two-way screw rod respectively, and the one end rotation of two-way screw rod runs through first splint.

In a possible design, change the subassembly including setting up two cavitys in the rolling disc, the both sides of rolling disc all are equipped with the drain pipe, and the drain pipe is linked together, two the cavity is close to one side inner wall of second splint and all rotates and runs through first pivot, two the one end difference fixedly connected with semi-open impeller and the full open type impeller of first pivot, one side that the rolling disc is close to the second splint is equipped with two circular slots, the circular slot internal rotation is connected with hollow post, the other end of first pivot extend to the circular slot in and with hollow post fixed connection, be equipped with a plurality of keyways in the hollow post, the outer wall fixedly connected with of slide bar is a plurality of with keyway matched with be connected the key, one side that the rolling disc is close to first splint is equipped with two through-holes, and the through-hole is linked together with the cavity.

In a possible design, the adjusting part is including rotating a plurality of bull sticks that run through the feed liquor pipe, and is a plurality of the first bevel gear of the equal fixedly connected with of one end that the bull stick was kept away from each other, the outer wall of feed liquor pipe rotates the cover and is equipped with the umbrella ring, and the umbrella ring meshes with first bevel gear mutually, and is a plurality of the equal fixedly connected with of one end that the bull stick is close to each other is located the guide vane in the feed liquor pipe, the top fixedly connected with fixed disk of feed liquor pipe, the top fixedly connected with scale of fixed disk is located the top the bottom fixedly connected with pointer of first bevel gear, and the scale cooperatees with the pointer, and is a plurality of one side that guide vane is close to each other is rotated and is connected with same hollow ring.

In a possible design, the bottom fixedly connected with L type frame of feed liquor pipe, the one end of dwang is rotated and is run through U type frame and fixedly connected with disc, be equipped with two jacks in the disc, and the jack cooperatees with L type frame, when first splint and second splint move to both sides, the feed liquor pipe drives L type frame and breaks away from the jack, removes the braking to the disc, and convenient carousel drives dwang and rolling disc and is used for changing semi-open impeller and full open impeller, otherwise, first splint drive L type frame and move to the centre, and L type frame inserts in the jack for fix dwang and rolling disc.

In a possible design, the both sides of rolling disc all are equipped with the ring channel, the equal fixedly connected with ring in one side that first splint and second splint are close to each other, and the ring cooperatees with the ring channel, when first splint and second splint remove to the centre, not only can make L type frame insert the jack, can also make the ring insert the ring channel, further increase first splint and second splint fixed to the rolling disc, when avoiding semi-open impeller or full open impeller to rotate at a high speed, the rolling disc appears rocking.

In a possible design, one side of U type frame is equipped with the clamp plate, one side that U type frame was kept away from to the clamp plate is equipped with the apron, be equipped with a plurality of bolts that run through the clamp plate in the apron, and the bolt is close to U type frame's one end and U type frame threaded connection, one side fixedly connected with cooling tank that U type frame was kept away from to the apron, the U type frame internal rotation runs through there is the second pivot, and the slide bar one end of keeping away from U type frame slides and extends to in the second pivot and fixedly connected with stopper, the one end that U type frame was kept away from in the second pivot is rotated and is run through clamp plate, apron and cooling tank, the outer wall of second pivot is rotated the cover and is equipped with two rolling bearing, two one side that rolling bearing kept away from each other rotates with one side inner wall of apron and cooling tank respectively and is connected.

In a possible design, two all be equipped with the sealing washer in the through-hole, the one end that the feed liquor pipe is close to the rolling disc extends to in one of them through-hole and closely laminates with corresponding sealing washer, can increase the leakproofness between through-hole and the feed liquor pipe through the laminating of sealing washer and feed liquor pipe.

In a possible design, the intraductal spout that is equipped with of feed liquor, sliding connection has two movable plates in the spout, be longitudinal rotation in the spout and be connected with the two-way lead screw with movable plate threaded connection, two movable plates are located the positive and negative screw thread section of two-way lead screw respectively, and the top of two-way lead screw extends to the top of feed liquor pipe, and the bottom inner wall fixedly connected with flow monitor of feed liquor pipe rotates two-way lead screw according to the actual conditions of different work condition, and the rotation of two-way lead screw drives two movable plates and carries out the phase displacement, and then can adjust the velocity of flow of the intraductal liquid of feed liquor.

An energy-saving method of a centrifugal pump front guide vane adjusting energy-saving device comprises the following steps:

s1, when liquid with different viscosity is not used, a bidirectional screw rod is rotated, the bidirectional screw rod drives a first clamping plate and a second clamping plate to move towards two sides, the first clamping plate and the second clamping plate respectively drive a liquid inlet pipe and a sliding rod to be separated from a through hole and a hollow column, braking on a rotating disc is relieved, and the liquid inlet pipe drives an L-shaped frame to be separated from a jack when the first clamping plate drives the liquid inlet pipe to move towards the outer side;

s2, rotating the disc, wherein the disc drives the rotating rod and the rotating disc to rotate, so that the positions of the semi-open type impeller and the fully-open type impeller can be exchanged, the fully-open type impeller corresponds to liquid with high viscosity, and the semi-open type impeller corresponds to liquid with low viscosity, so that the operation efficiency can be improved, and the energy loss can be reduced;

s3, after the corresponding rotating disc is replaced, the bidirectional screw is rotated reversely, the bidirectional screw drives the first clamping plate and the second clamping plate to move towards the middle, the liquid inlet pipe extends into the through hole and is tightly attached to the sealing ring, the sealing performance between the liquid inlet pipe and the rotating disc is improved, before the second clamping plate drives the sliding rod to move towards the middle, the position of the connecting key is adjusted to correspond to that of the key groove, and then when the second clamping plate drives the sliding rod to move, the connecting key can be just matched with the key groove in a corresponding way;

s4, driving a second rotating shaft to rotate through an output shaft of a motor (not shown in the figure), wherein the second rotating shaft is in sliding fit with a sliding rod, the second rotating shaft drives the sliding rod to rotate, the sliding rod drives a hollow column and a first rotating shaft to rotate through the fit of a connecting key and a key groove, the first rotating shaft drives a corresponding semi-open impeller or full-open impeller to rotate, and then the liquid inlet pipe is extended to the outside to be pumped out through the rotation of the semi-open impeller or the full-open impeller;

s5, under different working conditions, according to actual conditions of different working conditions, the bidirectional screw rod is rotated, the two movable plates are driven by the rotation of the bidirectional screw rod to move in opposite directions, the flow velocity of liquid in the liquid inlet pipe can be adjusted, the flow velocity of the liquid in the liquid inlet pipe is monitored by the flow monitor, the bevel gear ring is rotated according to the change of the flow velocity, the bevel gear ring is meshed with the first bevel gear, the bevel gear ring drives the rotating rod and the guide vanes to rotate through the first bevel gear, the rotating angle of the guide vanes can be adjusted, the operating efficiency of different working condition points in an operating range is improved, the first bevel gear drives the pointer to rotate in the rotating process, the multi-rotating angle of the guide vanes can be accurately judged through the matching of the pointer and the dial gauge, and the operating efficiency can be improved to the maximum degree.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

According to the invention, two cavities are arranged in the rotating disc, the inner walls of one sides of the two cavities, which are close to the second clamping plate, are respectively and rotatably penetrated by the first rotating shafts, one ends of the two first rotating shafts are respectively and fixedly connected with the semi-open type impeller and the full-open type impeller, one end of the rotating rod is rotatably penetrated through the rotating disc, the rotating disc is driven to rotate through the rotating rod, the positions of the semi-open type impeller and the full-open type impeller can be adjusted through the rotation of the rotating disc, the proper semi-open type impeller and the proper full-open type impeller are selected according to the viscosity of liquid, the full-open type impeller corresponds to liquid with high viscosity, and the semi-open type impeller corresponds to liquid with low viscosity, so that the operating efficiency of the pump can be improved, and the energy loss can be reduced;

according to the invention, one end of each of a plurality of rotating rods, which is far away from each other, is fixedly connected with a first bevel gear, the outer wall of the liquid inlet pipe is rotatably sleeved with a bevel gear ring, one end of each of the plurality of rotating rods, which is close to each other, is fixedly connected with a guide vane positioned in the liquid inlet pipe, the top of the fixed disk is fixedly connected with a scale meter, the bottom of the first bevel gear positioned at the top is fixedly connected with the scale meter, the flow speed of liquid in the liquid inlet pipe is monitored by a flow monitor, the bevel gear ring is rotated according to the change of the flow speed, the rotating angle of the guide vane can be adjusted, so that the operating efficiency of different working condition points in an operating range is improved, the first bevel gear drives a pointer to rotate in the rotating process, the multi-rotating angle of the guide vane can be accurately judged by matching the pointer and the scale meter, and the operating efficiency can be improved to the greatest extent;

according to the invention, a first clamping plate and a second clamping plate are positioned at two sides of a rotating disc, a liquid inlet pipe penetrates through the first clamping plate, a sliding rod penetrates through the second clamping plate in a rotating manner, a bidirectional screw rod with threads penetrating through the first clamping plate and the second clamping plate is connected in a U-shaped frame in a rotating manner, the first clamping plate and the second clamping plate are respectively positioned on the positive and negative thread sections of the bidirectional screw rod, the first clamping plate and the second clamping plate can be driven to move in opposite directions by rotating the bidirectional screw rod, so that the liquid inlet pipe and the sliding rod can be inserted into a through hole and a hollow column, the operation is continued after a semi-open impeller or a full-open impeller is replaced, and the stability of the rotating disc can be kept in the operation process;

according to the invention, one end of each of the two first rotating shafts is fixedly connected with a semi-open impeller and a full-open impeller, the other end of each of the two first rotating shafts extends into the circular groove and is fixedly connected with the hollow column, a plurality of key grooves are formed in the hollow column, a plurality of connecting keys matched with the key grooves are fixedly connected to the outer wall of the sliding rod, when the sliding rod is driven by the second clamping plate to be inserted into the hollow column, the connecting keys are matched with the key grooves, so that the sliding rod can drive the first rotating shaft to rotate through the hollow column, and the rotating disc can still continue to operate after the semi-open impeller and the full-open impeller are replaced, so that the rotating disc is suitable for liquids with different viscosities.

According to the invention, the corresponding semi-open impeller and full-open impeller are selected according to different viscous liquids, so that the operation efficiency can be improved, the energy consumption is reduced, the bevel gear ring is rotated under different working conditions to drive the first bevel gear and the guide vane to rotate, the angle of the guide vane is adjusted, so that the operation efficiency of different working condition points in an operation range is improved, the first bevel gear drives the pointer to rotate in the rotating process, the multi-rotation angle of the guide vane can be accurately judged by matching the pointer with the dial gauge, and the operation efficiency can be improved to the greatest extent.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of a centrifugal pump front guide vane adjusting energy-saving device provided in an embodiment of the present invention;

fig. 2 is a schematic three-dimensional sectional structural diagram of a centrifugal pump front guide vane adjusting energy-saving device provided in an embodiment of the present invention;

FIG. 3 is a schematic three-dimensional cross-sectional structural view of a U-shaped frame of a centrifugal pump front guide vane adjusting energy-saving device provided by an embodiment of the invention;

fig. 4 is an enlarged schematic structural diagram of a portion a of a centrifugal pump front guide vane adjusting energy-saving device according to an embodiment of the present invention;

fig. 5 is a schematic three-dimensional structure diagram of a guide vane of a centrifugal pump front guide vane adjusting energy-saving device provided by an embodiment of the invention;

FIG. 6 is a schematic diagram of a three-dimensional structure of a centrifugal pump front guide vane adjusting energy-saving device in which a circular ring and a rotating disc are matched;

fig. 7 is a schematic structural diagram of a first perspective three-dimensional cross-sectional view of a rotating disk of a centrifugal pump front guide vane adjusting energy-saving device according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a second perspective three-dimensional cross-sectional view of a rotating disk of a centrifugal pump front guide vane adjusting energy-saving device according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a three-dimensional cross section of a pressure plate and a cover plate of a centrifugal pump front guide vane adjusting energy-saving device provided by an embodiment of the invention;

FIG. 10 is a schematic three-dimensional cross-sectional structural view of a hollow column of a centrifugal pump front guide vane adjusting energy-saving device provided by an embodiment of the invention;

fig. 11 is a schematic front sectional view of a liquid inlet pipe of a centrifugal pump front guide vane adjusting energy-saving device according to a second embodiment of the present invention.

Reference numerals:

1. a U-shaped frame; 2. rotating the rod; 3. a first splint; 4. a second splint; 5. rotating the disc; 6. a through hole; 7. a liquid inlet pipe; 8. a rotating rod; 9. a first bevel gear; 10. a guide vane; 11. a hollow ring; 12. an umbrella tooth ring; 13. fixing the disc; 14. a dial gauge; 15. a pointer; 16. a cavity; 17. a first rotating shaft; 18. a semi-open impeller; 19. a fully open impeller; 20. a circular groove; 21. a hollow column; 22. a second rotating shaft; 23. a slide bar; 24. a connecting bond; 25. a keyway; 26. pressing a plate; 27. a cover plate; 28. a bolt; 29. a rotating bearing; 30. cooling the oil tank; 31. a flow rate monitor; 32. an L-shaped frame; 33. a disc; 34. a jack; 35. a liquid outlet pipe; 36. an annular groove; 37. a circular ring; 38. a seal ring; 39. a bidirectional screw; 40. a chute; 41. a bidirectional screw rod; 42. moving the plate; 43. and a limiting block.

Detailed Description

The embodiments of the present invention will be described below with reference to the drawings.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "mounted" are to be interpreted broadly, e.g., "connected" may or may not be detachably connected; may be directly connected or may be indirectly connected through an intermediate. Further, "communication" may be direct communication or indirect communication through an intermediary. The term "fixed" means that they are connected to each other and the relative positional relationship after the connection is not changed. Directional phrases used in embodiments of the present invention, such as "inner", "outer", "top", "bottom", and the like, refer only to the orientation of the attached drawings and, therefore, are used in order to better and more clearly describe and understand the embodiments of the present invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be taken as limiting the embodiments of the present invention.

In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the embodiment of the present invention, "and/or" is only one kind of association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Embodiment 1, referring to fig. 1 and 2, the centrifugal pump front guide vane adjusting energy-saving device of the embodiment includes: the device comprises a U-shaped frame 1, a rotating rod 2 which is rotatably connected in the U-shaped frame 1, a rotating disc 5 is fixedly sleeved on the outer wall of the rotating rod 2, and a liquid inlet pipe 7 penetrates through the U-shaped frame 1 in a sliding manner; the clamping component is sleeved on the outer wall of the rotating rod 2 and is used for clamping the rotating disc 5; the change subassembly, change the subassembly and set up in rolling disc 5 for move to different consistency liquid, adjusting part set up in feed liquor pipe 7, are used for improving the operating efficiency of each different operating mode point in the operating range.

Referring to fig. 1, 2 and 6, the clamping assembly includes a first clamping plate 3 and a second clamping plate 4 which are sleeved on the outer wall of the rotating rod 2, the first clamping plate 3 and the second clamping plate 4 are located on two sides of the rotating disk 5, one end of the liquid inlet pipe 7 close to the rotating disk 5 is fixedly penetrated through the first clamping plate 3, a sliding rod 23 is rotatably penetrated through the second clamping plate 4, a bidirectional screw 39 which is threaded through the first clamping plate 3 and the second clamping plate 4 is rotatably connected to the u-shaped frame 1, the first clamping plate 3 and the second clamping plate 4 are respectively located on the positive and negative threaded sections of the bidirectional screw 39, one end of the bidirectional screw 39 is rotatably penetrated through the first clamping plate 3, the bidirectional screw 39 is rotated to drive the first clamping plate 3 and the second clamping plate 4 to move towards each other, and further enable the liquid inlet pipe 7 and the sliding rod 23 to be inserted into the through hole 6 and the hollow column 21, the semi-open impeller 18 or the full-open impeller 19 is replaced, and the rotating disk 5 can be continuously operated during the operation.

Referring to fig. 6, fig. 7 and fig. 8, change the subassembly including setting up two cavities 16 in rolling disc 5, the both sides of rolling disc 5 all are equipped with drain pipe 35, and drain pipe 35 is linked together with corresponding cavity 16, two cavities 16 are close to one side inner wall of second splint 4 and all rotate and have run through first pivot 17, two first pivot 17's one end is respectively through bolt fixedly connected with semi-open impeller 18 and full open impeller 19, one side that rolling disc 5 is close to second splint 4 is equipped with two circular slots 20, circular slot 20 internal rotation is connected with hollow post 21, first pivot 17's the other end extends to in the circular slot 20 and passes through bolt fixed connection with hollow post 21, be equipped with a plurality of keyways 25 in the hollow post 21, the outer wall of slide bar 23 passes through a plurality of bolt fixed connection with keyway 25 matched with connecting key 24 through bolt fixed connection, one side that rolling disc 5 is close to first splint 3 is equipped with two dwang 6, and through-hole 6 and cavity 16 are linked together, it rotates to drive rolling disc 5 through impeller 2, rotation of rolling disc 5's rotation can make semi-open impeller 18 and full open impeller 19 position adjust the open fluid 19 and then the full open fluid passage 18 and the suitable full open fluid connection of the full open runner 19 and the lower the corresponding the hollow post that the impeller 18 of the impeller 21 that the operation can not reduce when the impeller 18, thereby the impeller 21, it can not reduce the efficiency to drive the impeller 18 and the hollow post and the impeller 21 and still to drive the hollow post and correspond.

Referring to fig. 3, 4 and 5, the adjusting assembly includes a plurality of rotating rods 8 rotatably penetrating through the liquid inlet pipe 7, a first bevel gear 9 is fixedly connected to each end of the plurality of rotating rods 8 far away from each other, a bevel gear ring 12 is rotatably sleeved on an outer wall of the liquid inlet pipe 7, the bevel gear ring 12 is engaged with the first bevel gear 9, a guide vane 10 positioned in the liquid inlet pipe 7 is fixedly connected to each end of the plurality of rotating rods 8 close to each other, a fixed disk 13 is fixedly connected to a top of the liquid inlet pipe 7 through a bolt, a scale 14 is fixedly connected to a top of the fixed disk 13 through a bolt, a pointer 15 is fixedly connected to a bottom of the first bevel gear 9 positioned at the uppermost position through a bolt, the scale 14 is matched with the pointer 15, one side of the plurality of guide vanes 10 close to each other is rotatably connected with the same ring 11, a flow rate of liquid in the liquid inlet pipe 7 is monitored by a flow monitor 31, the bevel gear ring 12 is rotated according to a change of the flow rate, a rotation angle of the guide vane 10 can be adjusted, thereby improving operation efficiency of different operating points in an operating range, while the first bevel gear 9 drives the pointer 15 to rotate, the pointer 15 to rotate with the pointer 14, and a maximum rotation degree of the scale 14 of the guide vane 10 can be accurately judged, and the hollow degree of the hollow scale 10 can be improved.

Referring to fig. 3, the bottom of the liquid inlet pipe 7 is connected with an L-shaped frame 32 through a bolt, one end of the rotating rod 2 is rotated to penetrate through the U-shaped frame 1 and is connected with a disc 33 through a bolt, two insertion holes 34 are formed in the disc 33, and the insertion holes 34 are matched with the L-shaped frame 32, when the first clamping plate 3 and the second clamping plate 4 move towards two sides, the liquid inlet pipe 7 drives the L-shaped frame 32 to break away from the insertion holes 34, braking on the disc 33 is relieved, the disc 33 is convenient to rotate, the rotating rod 2 and the rotating disc 5 are driven to replace the semi-open impeller 18 and the full-open impeller 19, otherwise, the first clamping plate 3 drives the L-shaped frame 32 to move towards the middle, and the L-shaped frame 32 is inserted into the insertion holes 34 and is used for fixing the rotating rod 2 and the rotating disc 5.

Referring to fig. 6, both sides of the rotating disc 5 are provided with annular grooves 36, one side of the first clamping plate 3, which is close to the second clamping plate 4, is provided with a circular ring 37 through bolt fixed connection, and the circular ring 37 is matched with the annular groove 36, when the first clamping plate 3 and the second clamping plate 4 move towards the middle, not only the L-shaped frame 32 can be inserted into the insertion hole 34, but also the circular ring 37 can be inserted into the annular groove 36, the fixation of the first clamping plate 3 and the second clamping plate 4 to the rotating disc 5 is further increased, and the rotating disc 5 is prevented from shaking when the semi-open impeller 18 or the full-open impeller 19 rotates at high speed.

Referring to fig. 9, a pressing plate 26 is arranged on one side of the U-shaped frame 1, a cover plate 27 is arranged on one side of the pressing plate 26 away from the U-shaped frame 1, a plurality of bolts 28 penetrating through the pressing plate 26 are arranged in the cover plate 27, one end of each bolt 28 close to the U-shaped frame 1 is in threaded connection with the U-shaped frame 1, a cooling oil tank 30 is fixedly connected to one side of the cover plate 27 away from the U-shaped frame 1, a second rotating shaft 22 penetrates through the U-shaped frame 1 in a rotating mode, one end of each sliding rod 23 away from the U-shaped frame 1 extends into the second rotating shaft 22 in a sliding mode and is fixedly connected with a limiting block 43 through the bolt, one end of each second rotating shaft 22 away from the U-shaped frame 1 rotates to penetrate through the pressing plate 26, the cover plate 27 and the cooling oil tank 30, two rotating bearings 29 are rotatably sleeved on the outer wall of the second rotating shaft 22, and one sides, away from each other, of the two rotating bearings 29, are respectively connected with the inner walls of one side of the cover plate 27 and the cooling oil tank 30.

Referring to fig. 6 and 8, sealing rings 38 are arranged in the two through holes 6, one end of the liquid inlet pipe 7 close to the rotating disc 5 extends into one of the through holes 6 and is tightly attached to the corresponding sealing ring 38, and the sealing performance between the through hole 6 and the liquid inlet pipe 7 can be improved by attaching the sealing ring 38 to the liquid inlet pipe 7.

Embodiment 2, referring to fig. 1 and 2, the centrifugal pump front guide vane adjusting energy-saving device of the embodiment includes: the device comprises a U-shaped frame 1, a rotating rod 2 which is rotatably connected in the U-shaped frame 1, a rotating disc 5 is fixedly sleeved on the outer wall of the rotating rod 2, and a liquid inlet pipe 7 penetrates through the U-shaped frame 1 in a sliding manner; the clamping assembly is sleeved on the outer wall of the rotating rod 2 and used for clamping the rotating disc 5; the change subassembly, change the subassembly and set up in rolling disc 5 for move to different consistency liquid, adjusting part set up in feed liquor pipe 7, are used for improving the operating efficiency of each different operating mode point in the operating range.

Referring to fig. 1, 2 and 6, the clamping assembly includes a first clamping plate 3 and a second clamping plate 4 sleeved on the outer wall of the rotating rod 2, the first clamping plate 3 and the second clamping plate 4 are located on two sides of the rotating disk 5, one end of the liquid inlet pipe 7 close to the rotating disk 5 is fixedly penetrated through the first clamping plate 3, a sliding rod 23 is rotatably penetrated through the second clamping plate 4, a bidirectional screw 39 having a thread penetrating through the first clamping plate 3 and the second clamping plate 4 is rotatably connected to the u-shaped frame 1, the first clamping plate 3 and the second clamping plate 4 are respectively located on the positive and negative thread sections of the bidirectional screw 39, one end of the bidirectional screw 39 is rotatably penetrated through the first clamping plate 3, the bidirectional screw 39 is rotated to drive the first clamping plate 3 and the second clamping plate 4 to move towards each other, so that the liquid inlet pipe 7 and the sliding rod 23 can be inserted into the through hole 6 and the hollow column 21, the semi-open impeller 18 or the full open impeller 19 is replaced, and the rotating disk 5 can be kept stable in the operation process.

Referring to fig. 6, 7, 8 and 10, the replacing assembly includes two cavities 16 disposed in the rotating disc 5, liquid outlet pipes 35 are disposed on both sides of the rotating disc 5, and the liquid outlet pipes 35 are communicated with the corresponding cavities 16, first rotating shafts 17 are rotatably penetrated through inner walls of one sides of the two cavities 16 close to the second clamping plate 4, one ends of the two first rotating shafts 17 are fixedly connected with a semi-open impeller 18 and a full-open impeller 19 through bolts respectively, two circular grooves 20 are disposed on one sides of the rotating disc 5 close to the second clamping plate 4, hollow columns 21 are rotatably connected in the circular grooves 20, the other ends of the first rotating shafts 17 extend into the circular grooves 20 and are fixedly connected with the hollow columns 21 through bolts, a plurality of key slots 25 are disposed in the hollow columns 21, a plurality of connecting keys 24 matched with the key slots 25 are fixedly connected to outer walls of the sliding rods 23 through bolts, two through holes 6 are disposed on one side of the rotating disc 5 close to the first clamping plate 3, and through-hole 6 is linked together with cavity 16, drive rolling disc 5 through dwang 2 and rotate, the rotation of rolling disc 5 can make semi-open impeller 18 and full open impeller 19 position adjust, and then select suitable semi-open impeller 18 and full open impeller 19 according to the ropy of liquid, full open impeller 19 corresponds the great liquid of consistency, semi-open impeller 18 corresponds the less liquid of consistency, and then can improve the operating efficiency of this pump, reduce the energy loss, when second splint 4 drives slide bar 23 and inserts in hollow post 21, connecting key 24 cooperatees with keyway 25, and then slide bar 23 drives first pivot 17 through hollow post 21 and rotates when can, still can continue the operation after changing semi-open impeller 18 and full open impeller 19, thereby can make rolling disc 5 be applicable to the liquid of different consistencies.

Referring to fig. 3, fig. 4 and fig. 5, the adjusting assembly includes a plurality of rotating rods 8 rotatably penetrating through the liquid inlet pipe 7, a first bevel gear 9 is fixedly connected to one end of each rotating rod 8, a bevel gear ring 12 is rotatably sleeved on the outer wall of the liquid inlet pipe 7, the bevel gear ring 12 is engaged with the first bevel gear 9, a guide vane 10 located in the liquid inlet pipe 7 is fixedly connected to one end of each rotating rod 8 close to each other, a fixed disk 13 is fixedly connected to the top of the liquid inlet pipe 7 through a bolt, a scale 14 is fixedly connected to the top of the fixed disk 13 through a bolt, a pointer 15 is fixedly connected to the bottom of the uppermost first bevel gear 9 through a bolt, the scale 14 is matched with the pointer 15, one side of each guide vane 10 close to each other is rotatably connected with the same hollow ring 11, the flow rate of liquid in the liquid inlet pipe 7 is monitored by a flow monitor 31, the bevel gear ring 12 is rotated according to the change of the flow rate, the rotating angle of the guide vane 10 can be adjusted, so as to improve the operating efficiency of each different operating points in the operating range, and the operating efficiency of the guide vane 10 can be accurately judged by the rotating degree of the index 10.

Referring to fig. 3, bolt fixedly connected with L type frame 32 is passed through to the bottom of feed liquor pipe 7, the one end of dwang 2 is rotated and is run through U type frame 1 and pass through bolt fixedly connected with disc 33, be equipped with two jacks 34 in the disc 33, and jack 34 cooperatees with L type frame 32, when first splint 3 and second splint 4 move to both sides, feed liquor pipe 7 drives L type frame 32 and breaks away from jack 34, relieve the braking to disc 33, conveniently rotate disc 33, drive dwang 2 and rolling disc 5 and be used for changing half open impeller 18 and full open impeller 19, otherwise, first splint 3 drives L type frame 32 and moves to the centre, L type frame 32 inserts in jack 34, be used for fixing dwang 2 and rolling disc 5.

Referring to fig. 11, a chute 40 is arranged in the liquid inlet pipe 7, two moving plates 42 are slidably connected in the chute 40, a bidirectional screw rod 41 connected with the moving plates 42 in a threaded manner is longitudinally rotatably connected in the chute 40, the two moving plates 42 are respectively located on the positive and negative thread sections of the bidirectional screw rod 41, the top end of the bidirectional screw rod 41 extends to the upper side of the liquid inlet pipe 7, the bottom inner wall of the liquid inlet pipe 7 is fixedly connected with a flow monitor 31, and the two moving plates 42 are driven to move in opposite directions by rotation of the bidirectional screw rod 41 according to actual conditions of different working conditions, so that the flow speed of liquid in the liquid inlet pipe 7 can be adjusted

s1, when liquid with different viscosity is not used, the two-way screw rod 39 is rotated, the two-way screw rod 39 drives the first clamping plate 3 and the second clamping plate 4 to move towards two sides, the first clamping plate 3 and the second clamping plate 4 respectively drive the liquid inlet pipe 7 and the sliding rod 23 to be separated from the through hole 6 and the hollow column 21, the brake on the rotating disc 5 is released, and when the first clamping plate 3 drives the liquid inlet pipe 7 to move towards the outer side, the liquid inlet pipe 7 drives the L-shaped frame 32 to be separated from the jack 34;

s2, then rotating the disc 33, wherein the disc 33 drives the rotating rod 2 and the rotating disc 5 to rotate, so that the positions of the semi-open type impeller 18 and the fully-open type impeller 19 can be exchanged, the fully-open type impeller 19 corresponds to liquid with high viscosity, and the semi-open type impeller 18 corresponds to liquid with low viscosity, so that the operation efficiency can be improved, and the energy loss can be reduced;

s3, after the corresponding rotating disc 5 is replaced, the bidirectional screw 39 is rotated reversely, the bidirectional screw 39 drives the first clamping plate 3 and the second clamping plate 4 to move towards the middle, the liquid inlet pipe 7 extends into the through hole 6 and is tightly attached to the sealing ring 38 for increasing the sealing property between the liquid inlet pipe 7 and the rotating disc 5, before the second clamping plate 4 drives the sliding rod 23 to move towards the middle, the position of the connecting key 24 is adjusted to correspond to that of the key groove 25, and then when the second clamping plate 4 drives the sliding rod 23 to move, the connecting key 24 just can be correspondingly matched with the key groove 25;

s4, driving a second rotating shaft 22 to rotate through an output shaft which is not shown in a motor drawing, wherein the second rotating shaft 22 is in sliding fit with a sliding rod 23, the second rotating shaft 22 drives the sliding rod 23 to rotate, the sliding rod 23 drives a hollow column 21 and a first rotating shaft 17 to rotate through the fit of a connecting key 24 and a key groove 25, then the first rotating shaft 17 drives a corresponding semi-open impeller 18 or full-open impeller 19 to rotate, and further liquid extending to the outside of the liquid inlet pipe 7 is pumped out through the rotation of the semi-open impeller 18 or the full-open impeller 19;

s5, under different working conditions, according to actual conditions of different working conditions, the two-way screw rod 41 is rotated, the two moving plates 42 are driven by the rotation of the two-way screw rod 41 to move oppositely, the flow velocity of liquid in the liquid inlet pipe 7 can be adjusted, the flow velocity of the liquid in the liquid inlet pipe 7 is monitored through the flow monitor 31, the bevel gear ring 12 is rotated according to the change of the flow velocity, the bevel gear ring 12 is meshed with the first bevel gear 9, the bevel gear ring 12 drives the rotating rod 8 and the guide vanes 10 to rotate through the first bevel gear 9, the rotating angle of the guide vanes 10 can be adjusted, the operating efficiency of different working condition points in an operating range is improved, the pointer 15 is driven to rotate by the first bevel gear 9 in the rotating process, the rotating angle of the guide vanes 10 can be accurately judged by the matching of the pointer 15 and the dial gauge 14, and the operating efficiency can be improved to the greatest extent.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention; the embodiments of the invention and the features of the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a leading stator of centrifugal pump adjusts economizer which characterized in that includes:

the device comprises a U-shaped frame (1), a rotating rod (2) rotatably connected in the U-shaped frame (1), a rotating disc (5) fixedly sleeved on the outer wall of the rotating rod (2), and a liquid inlet pipe (7) penetrates through the U-shaped frame (1) in a sliding manner;

the clamping component is sleeved on the outer wall of the rotating rod (2) and is used for clamping the rotating disc (5);

the replacing component is arranged in the rotating disc (5) and is used for operating aiming at liquids with different viscosities;

the adjusting component is arranged in the liquid inlet pipe (7) and used for improving the operating efficiency of different operating points in the operating range.

2. The energy-saving device is adjusted to leading stator of centrifugal pump according to claim 1, characterized in that, the centre gripping subassembly is established including the cover and is established first splint (3) and second splint (4) at dwang (2) outer wall, and first splint (3) and second splint (4) are located the both sides of rolling disc (5), and feed liquor pipe (7) are close to the fixed first splint (3) that runs through of one end of rolling disc (5), slide bar (23) have been run through in second splint (4) internal rotation, U type frame (1) internal rotation is connected with two-way screw (39) that the screw thread runs through first splint (3) and second splint (4), and first splint (3) and second splint (4) are located the positive and negative screw thread section of two-way screw (39) respectively, and the one end rotation of two-way screw (39) runs through first splint (3).

3. The energy-saving device for adjusting the front guide vane of the centrifugal pump according to claim 1, wherein the replacing assembly comprises two cavities (16) arranged in a rotating disc (5), liquid outlet pipes (35) are arranged on both sides of the rotating disc (5), the liquid outlet pipes (35) are communicated with the corresponding cavities (16), two inner walls of one side, close to a second clamping plate (4), of the cavities (16) are respectively and rotatably penetrated by a first rotating shaft (17), one ends of the first rotating shafts (17) are respectively and fixedly connected with a semi-open impeller (18) and a full-open impeller (19), two circular grooves (20) are arranged on one side, close to the second clamping plate (4), of the rotating disc (5), a hollow column (21) is rotatably connected in the circular grooves (20), the other end of the first rotating shaft (17) extends into the circular grooves (20) and is fixedly connected with the hollow column (21), a plurality of key grooves (25) are arranged in the hollow column (21), a plurality of key grooves (23) are fixedly connected with a plurality of key grooves and matched with a connecting key (24) on the outer wall of the rotating disc (5), and two through holes (16) are arranged on one side, close to the cavity (6), and are communicated with the through holes (6) of the rotating disc (5).

4. The energy-saving device is adjusted to leading stator of centrifugal pump according to claim 1, characterized in that, the regulating assembly includes a plurality of bull sticks (8) that rotate and run through feed liquor pipe (7), and is a plurality of the equal fixedly connected with first bevel gear (9) of one end that bull stick (8) kept away from each other, the outer wall of feed liquor pipe (7) is rotated the cover and is equipped with umbrella tooth ring (12), and umbrella tooth ring (12) and first bevel gear (9) mesh mutually, and is a plurality of equal fixedly connected with in the one end that bull stick (8) are close to each other has guide vane (10) that is located feed liquor pipe (7), the top fixedly connected with fixed disk (13) of feed liquor pipe (7), the top fixedly connected with scale (14) of fixed disk (13), be located the top the bottom fixedly connected with pointer (15) of first bevel gear (9), and scale (14) and pointer (15) cooperate, and is a plurality of one side that guide vane (10) are close to each other rotates and is connected with same hollow ring (11).

5. The energy-saving device for adjusting the front guide vane of the centrifugal pump according to claim 1, wherein an L-shaped frame (32) is fixedly connected to the bottom of the liquid inlet pipe (7), one end of the rotating rod (2) is rotated to penetrate through the U-shaped frame (1) and is fixedly connected with a disc (33), two insertion holes (34) are formed in the disc (33), and the insertion holes (34) are matched with the L-shaped frame (32).

6. The centrifugal pump front guide vane adjusting energy-saving device is characterized in that annular grooves (36) are formed in two sides of the rotating disc (5), a circular ring (37) is fixedly connected to one side, close to each other, of the first clamping plate (3) and the second clamping plate (4), and the circular ring (37) is matched with the annular grooves (36).

7. The energy-saving device is adjusted to leading stator of centrifugal pump according to claim 1, characterized in that, one side of U type frame (1) is equipped with clamp plate (26), one side that U type frame (1) was kept away from in clamp plate (26) is equipped with apron (27), be equipped with a plurality of bolts (28) that run through clamp plate (26) in apron (27), and the one end that bolt (28) are close to U type frame (1) and U type frame (1) threaded connection, one side fixedly connected with cooling tank (30) of U type frame (1) are kept away from in apron (27), the U type frame (1) internal rotation has run through second pivot (22), and slide bar (23) keep away from the one end of U type frame (1) and slide and extend to in second pivot (22) and fixedly connected with stopper (43), the one end that U type frame (1) was kept away from in second pivot (22) rotates and runs through clamp plate (26), apron (27) and cooling tank (30), the outer wall of second pivot (22) rotates the cover and is equipped with two rolling bearings (29), one side that two rolling bearings (29) kept away from each other and cooling tank (30) are connected.

8. The centrifugal pump front guide vane adjusting energy-saving device is characterized in that a sealing ring (38) is arranged in each of the two through holes (6), and one end, close to the rotating disc (5), of the liquid inlet pipe (7) extends into one of the through holes (6) and is tightly attached to the corresponding sealing ring (38).

9. The energy-saving device for adjusting the front guide vane of the centrifugal pump according to claim 1, wherein a sliding groove (40) is arranged in the liquid inlet pipe (7), two moving plates (42) are slidably connected in the sliding groove (40), a bidirectional screw rod (41) in threaded connection with the moving plates (42) is longitudinally and rotatably connected in the sliding groove (40), the two moving plates (42) are respectively located on the positive and negative thread sections of the bidirectional screw rod (41), and the top end of the bidirectional screw rod (41) extends to the upper side of the liquid inlet pipe (7).

10. The energy-saving method for the centrifugal pump front guide vane adjusting energy-saving device according to any one of claims 1-9, characterized by comprising the following steps:

s1, when liquid with low viscosity is not used, a two-way screw rod (39) is rotated, the two-way screw rod (39) drives a first clamping plate (3) and a second clamping plate (4) to move towards two sides, the first clamping plate (3) and the second clamping plate (4) respectively drive a liquid inlet pipe (7) and a sliding rod (23) to be separated from a through hole (6) and a hollow column (21), braking on a rotating disc (5) is relieved, and when the first clamping plate (3) drives the liquid inlet pipe (7) to move towards the outer side, the liquid inlet pipe (7) drives an L-shaped frame (32) to be separated from a jack (34);

s2, rotating the disc (33), wherein the disc (33) drives the rotating rod (2) and the rotating disc (5) to rotate, so that the positions of the semi-open impeller (18) and the full-open impeller (19) can be exchanged, the full-open impeller (19) corresponds to liquid with high viscosity, and the semi-open impeller (18) corresponds to liquid with low viscosity, so that the operation efficiency can be improved, and the energy loss can be reduced;

s3, after the corresponding rotating disc (5) is replaced, the bidirectional screw (39) is rotated reversely, the bidirectional screw (39) drives the first clamping plate (3) and the second clamping plate (4) to move towards the middle, the liquid inlet pipe (7) extends into the through hole (6) and is tightly attached to the sealing ring (38) for improving the sealing property between the liquid inlet pipe (7) and the rotating disc (5), before the second clamping plate (4) drives the sliding rod (23) to move towards the middle, the position of the connecting key (24) is adjusted to correspond to that of the key groove (25), and then when the second clamping plate (4) drives the sliding rod (23) to move, the connecting key (24) just can be correspondingly matched with the key groove (25);

s4, driving a second rotating shaft (22) to rotate through an output shaft of the motor, enabling the second rotating shaft (22) to be in sliding fit with a sliding rod (23), enabling the second rotating shaft (22) to drive the sliding rod (23) to rotate, enabling the sliding rod (23) to drive a hollow column (21) and a first rotating shaft (17) to rotate through the cooperation of a connecting key (24) and a key groove (25), further enabling the first rotating shaft (17) to drive a corresponding semi-open impeller (18) or a full-open impeller (19) to rotate, and further enabling liquid, extending to the outside, of the liquid inlet pipe (7) to be pumped out through the rotation of the semi-open impeller (18) or the full-open impeller (19);

s5, under different working conditions, according to actual conditions of different working conditions, the two-way screw rod (41) is rotated, the two moving plates (42) are driven by the rotation of the two-way screw rod (41) to move oppositely, so that the flow velocity of liquid in the liquid inlet pipe (7) can be adjusted, the flow velocity of liquid in the liquid inlet pipe (7) is monitored through the flow monitor (31), the umbrella tooth ring (12) is rotated according to the change of the flow velocity, the umbrella tooth ring (12) is meshed with the first bevel gear (9), the umbrella tooth ring (12) drives the rotating rod (8) and the guide vanes (10) to rotate through the first bevel gear (9), so that the rotating angle of the guide vanes (10) can be adjusted, the operating efficiency of different working conditions in an operating range is improved, the pointer (15) is driven to rotate in the rotating process, the matching of the pointer (15) and the dial gauge (14) can accurately judge the multi-rotating angle of the guide vanes (10), and the operating efficiency can be improved to the greatest extent.