CN214742310U - Booster-type sealing energy-saving device for pump - Google Patents
Booster-type sealing energy-saving device for pump Download PDFInfo
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- CN214742310U CN214742310U CN202120648718.7U CN202120648718U CN214742310U CN 214742310 U CN214742310 U CN 214742310U CN 202120648718 U CN202120648718 U CN 202120648718U CN 214742310 U CN214742310 U CN 214742310U
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Abstract
The utility model relates to an economizer is sealed to booster-type for pump, this economizer is sealed to booster-type for pump includes two kinds of structural style: the booster-type sealing energy-saving device for the horizontal pump and the booster-type sealing energy-saving device for the vertical pump respectively comprise a pump body, an impeller, a main shaft, a booster sealing orifice plate, a transmission key and a fastener; the impeller is fixed on the main shaft and rotates at a high speed along with the main shaft, the pressurizing sealing orifice plate is fixed at the inlet of the pump body through a fastener, and a sealing cavity structure is formed by a gap between the pressurizing sealing orifice plate and the impeller; the impeller is fixedly connected with the main shaft through a transmission key. The utility model provides a pump is with sealed economizer of booster-type has improved the mobile state of impeller entrance transport medium, has overcome traditional pump reflux and has inhaled the entrance and carry the medium and the shortcoming of the mutual impact of backward flow has improved the pump and has carried fluidic efficiency, has solved the easy wearing and tearing of traditional pump sealing ring simultaneously, difficult problem of dismantling greatly.
Description
Technical Field
The utility model relates to an economizer, concretely relates to improve pump impeller sunction inlet department and carry flow field distribution state of medium, overcome that traditional pump return flow is big and the shortcoming that the impeller sunction inlet was come a stream medium and is flowed and is strikeed each other with the backward flow has improved the efficiency that the pump carried the medium, reaches the sealed economizer of booster-type for pump of pump energy-efficient purpose.
Background
At present, generally, in water pumps at home and abroad, a method of additionally arranging a sealing ring at an impeller opening ring and the like is adopted to reduce the backflow amount in the pump and play a role of sealing. This method has the following disadvantages: the processing precision of parts is high, otherwise, the ideal sealing effect is difficult to achieve; the impeller sealing ring is easy to wear, the pump efficiency can be reduced after the impeller sealing ring is worn, the impeller sealing ring needs to be replaced by a pump in site, and a great deal of inconvenience is brought.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a pump impeller with improved flow field distribution of the conveying medium at the inlet, which overcomes the disadvantages of the conventional pump that the backflow flow rate is large and the inflow medium at the inlet and the backflow flow impact each other, and improves the efficiency of the conveying medium of the pump, thereby achieving the high-efficiency and energy-saving pressurized sealing energy-saving device for the pump.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: the utility model provides an economizer is sealed to booster-type for pump, economizer is sealed to booster-type for pump includes two kinds of structural style: the booster-type sealing energy-saving device for the horizontal pump and the booster-type sealing energy-saving device for the vertical pump respectively comprise a pump body, an impeller, a main shaft, a booster sealing orifice plate, a transmission key and a fastener; the impeller is fixed on the main shaft and rotates at a high speed along with the main shaft, the pressurizing sealing orifice plate is fixed at the inlet of the pump body through a fastener, and a sealing cavity structure is formed by a gap between the pressurizing sealing orifice plate and the impeller; the impeller is fixedly connected with the main shaft through a transmission key.
In the specific embodiment of the present invention, the seal cavity structure formed between the pressurizing seal orifice plate and the impeller ring includes: a pressurizing sealing pore plate fixedly connected to the pump body through a fastener by screw threads, and a plurality of through holes are uniformly distributed along the circumferential direction of the pore plate; the impeller is fixedly connected to the main shaft through a connecting screw by screw threads, and a stepped annular convex structure is arranged at the inlet of the impeller.
In a specific embodiment of the present invention, the impeller is screwed to the main shaft by a coupling screw.
In a specific embodiment of the present invention, the fastening member is a screw, and the pressurizing sealing orifice plate is fixed to the pump body by the screw through a thread.
In the embodiment of the present invention, the through hole is formed on the pressurizing sealing orifice plate, and the shape of the through hole includes: cylindrical through hole, conical through hole and cylinder circular cone combination shape through-hole.
In an embodiment of the present invention, the through hole depth range is: 30-60 mm, pore size range: 5-30 mm; the length ratio range of the cylindrical and conical combined through hole is as follows: 1:1-3:1.
In a specific embodiment of the present invention, the impeller inlet is provided with a stepped annular protrusion structure.
In a specific embodiment of the present invention, the impeller is a closed impeller.
The utility model discloses an actively advance the effect and lie in: the utility model provides a booster-type seals economizer for pump has following advantage:
1. the application of the booster-type sealing energy-saving device for the pump fundamentally solves the problem of backflow in the cavity of the traditional pump, reduces the volume loss of the pump, improves the operating efficiency of the pump and achieves the purpose of high efficiency and energy saving of the pump.
2. The application of the booster-type sealing energy-saving device for the pump fundamentally improves the flow state of the inlet of the impeller, reduces the local loss in the pump, improves the operation efficiency of the pump and achieves the aim of saving energy of the pump.
3. The application of the booster-type sealing energy-saving device for the pump fundamentally solves the problems that the traditional pump sealing ring is easy to wear and difficult to disassemble.
The utility model provides a pump is with sealed economizer of booster-type has improved the mobile state of impeller entrance transport medium, has overcome traditional pump reflux and has inhaled the entrance and carry the medium and the shortcoming of the mutual impact of backward flow has improved the pump and has carried fluidic efficiency, has solved the easy wearing and tearing of traditional pump sealing ring simultaneously, difficult problem of dismantling greatly.
Drawings
Fig. 1 shows a pressurized sealing energy-saving device for a horizontal pump.
Fig. 2 is a pressure-increasing type sealing energy-saving device for a vertical pump.
FIG. 3 is a schematic diagram of a cylindrical through hole pressurized sealing orifice plate structure.
FIG. 4 is a schematic diagram of a pressurized sealing plate with conical through holes.
FIG. 5 is a schematic diagram of a cylindrical-conical combined pressurized sealing orifice plate structure.
FIG. 6 is a second schematic diagram of a cylindrical-conical combined pressurized sealing orifice structure.
Fig. 7 is a schematic view of the flow state of the flow field of the booster-type sealing energy-saving device for the pump.
The utility model discloses the name that well reference numeral corresponds:
the pump body 1, impeller 2, main shaft 3, pressure boost seal orifice plate 4, drive key 5, coupling screw 6, fastener 7.
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a supercharged sealing energy-saving device for a horizontal pump, fig. 2 is a supercharged sealing energy-saving device for a vertical pump, fig. 3 is a structural schematic diagram of a cylindrical through hole supercharged sealing orifice plate, and fig. 4 is a structural schematic diagram of a conical through hole supercharged sealing orifice plate. As shown in the above figures: the utility model provides an energy-saving device is sealed to booster-type for pump includes two kinds of structural style: the booster-type sealing energy-saving device for the horizontal pump (figure 1) and the booster-type sealing energy-saving device for the vertical pump (figure 2); each structural form comprises a pump body 1, an impeller 2, a main shaft 3, a pressurizing sealing hole plate 4, a transmission key 5, a connecting screw 6 and a fastening piece 7. The impeller is fixedly connected to the main shaft 3 by a connecting screw 6, and the impeller 2 is connected with the main shaft 3 through a transmission key 5 and rotates at a high speed along with the main shaft 3; the booster-type sealing orifice plate 4 is fixedly connected to the inlet of the pump body 1 through a fastener 7; the annular gap of the impeller 2 and the pressurizing sealing orifice plate 4 form a high-pressure sealing cavity.
The seal cavity structure formed by the annular gap between the pressurizing seal orifice plate 4 and the impeller 2 comprises: a pressurizing sealing pore plate 4 fixedly connected to the pump body 1 through a fastener 7 by screw threads, and a plurality of through holes are uniformly distributed along the circumferential direction of the pore plate 4; the impeller 2 is fixedly connected to the main shaft 3 through a connecting screw 6 through threads, and a stepped annular convex structure is arranged at the inlet of the impeller 2.
Fig. 3 is a schematic diagram of a cylindrical through hole pressurized sealing orifice plate structure, fig. 4 is a schematic diagram of a conical through hole pressurized sealing orifice plate structure, fig. 5 is one of a schematic diagram of a cylindrical and conical combined pressurized sealing orifice plate structure, and fig. 6 is a second schematic diagram of a cylindrical and conical combined pressurized sealing orifice plate structure, as shown in the above-mentioned figures: the through-hole is opened on pressure boost seal orifice plate 4, and the shape of through-hole includes: a cylindrical through hole (fig. 3), a conical through hole (fig. 4) and a cylindrical-conical combined through hole (fig. 5, fig. 6); through hole depth range: 30-60 mm, through hole aperture range: 5-30 mm; the length ratio range of the cylindrical and conical combined through hole is as follows: 1:1-3:1.
The inlet of the impeller 2 of the utility model is provided with a step-shaped annular bulge, and the impeller 2 is a closed impeller.
A booster-type sealing energy-saving device for a pump is characterized in that a booster-type sealing orifice plate 4 fixedly connected to a pump body 1 through a fastener 7 through threads and a rotating part impeller 2 with a stepped annular structure at a suction inlet form a high-pressure sealing cavity, and the impeller 2 is fixedly connected to a main shaft 3 through a connecting screw 6 through threads and rotates at a high speed along with the main shaft 3.
The booster-type sealed energy-saving device for pump is characterized by that the impeller 2 is connected with main shaft 3 by means of driving key 5, and is fixed on the main shaft 3 by means of screw-thread connection by means of connecting screw 6, and can be rotated at high speed with main shaft 3, the energy of fluid medium flowing through the impeller 2 is increased, and the pump cavity is back-flowed, i.e. a portion of high-energy conveying medium can be back-flowed into the inlet of impeller 2 by means of gap between pump body 1 and impeller 2. The booster-type sealing energy-saving device for the pump changes the flow field distribution state of fluid media at the suction inlet of the impeller (see figure 7), on one hand, the booster sealing pore plate fixedly connected with the pump body 1 through the connecting screw 6 can effectively play a role of sealing, and prevents the high-energy pump cavity from flowing back to the inlet of the impeller, thereby reducing the volume loss of the pump and improving the operation efficiency of the pump; on the other hand, the stepped annular bulge at the inlet of the impeller 2 guides the fluid medium flowing through the pressurizing sealing orifice plate 4, so that the flowing direction of the fluid medium is consistent with the flowing direction of the fluid pumped by the suction inlet of the impeller 2, the local loss in the pump is reduced, and the aim of high efficiency and energy conservation of the pump is fulfilled.
The utility model discloses energy-saving device is sealed to booster-type for pump's working process as follows:
during the operation of the pump, the impeller 2 is connected with the main shaft 3 through the transmission key 5, is fixed on the main shaft 3 through the thread connection by the connection screw 6 and rotates at a high speed along with the main shaft 3, the rotating impeller 2 transfers energy to a medium passing through an impeller flow passage, the energy of the medium is increased and flows into a pump cavity from an outlet of the impeller 2, and a pump cavity reflows to flow back to an inlet of the impeller 2 through a gap between the pump body 1 and the impeller 2, so that the loss of the flow in the pump is caused. In order to improve the operation efficiency of the pump, the design of the booster-type sealing energy-saving device for the pump fundamentally changes the flow field distribution state of fluid media at the suction port of the impeller. On one hand, a pressurizing sealing orifice plate fixedly connected to the pump body 1 through a fastening piece 7 can effectively play a role in sealing, and prevents the high-energy pump cavity from returning to the impeller suction inlet, so that the volume loss is reduced, and the operation efficiency of the pump is improved; on the other hand, the stepped annular bulge at the inlet of the impeller 2 guides the fluid medium flowing through the pressurizing sealing orifice plate 4, so that the flowing direction of the fluid medium is consistent with the flowing direction of the fluid pumped by the suction inlet of the impeller 2, the local loss in the pump is reduced, and the aim of high efficiency and energy conservation of the pump is fulfilled.
The utility model discloses energy-saving device is sealed to booster-type for pump theory of operation as follows (fig. 7): when the pumped fluid flows through the impeller suction inlet, part of the fluid reaches flow surfaces b and b ' through cylindrical through holes ab and a ' b ' of a pressurizing sealing orifice plate and then enters tapered holes bc and b ' c ', the flow area through which the fluid medium flows is gradually increased, the flow speed is gradually reduced, the pressure is increased, and the speed can be converted into pressure energy along with the flow area. And finally, the high-energy fluid is sprayed into a gap between the pump sealing pore plate and the impeller, so that the energy of the backflow of the pump cavity can be balanced, and the effect of preventing the backflow of the pump cavity from returning to the suction inlet of the impeller is achieved. If the pressure of the fluid medium after flowing through the sealing orifice plate and the return pressure of the pump cavity are balanced, complete sealing can be realized. The liquid flowing back to the pump suction inlet from the gap between the pump pressurizing sealing orifice plate and the impeller changes the flow direction when entering the impeller through the stepped annular bulge at the impeller suction inlet, the direction of the liquid is consistent with the flow direction of the fluid pumped by the impeller suction inlet, and the local loss caused by flow impact in the pump is effectively avoided.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides an economizer is sealed to booster-type for pump which characterized in that: the booster-type sealing energy-saving device for the pump comprises two structural forms: the booster-type sealing energy-saving device for the horizontal pump and the booster-type sealing energy-saving device for the vertical pump respectively comprise a pump body, an impeller, a main shaft, a booster sealing orifice plate, a transmission key and a fastener; the impeller is fixed on the main shaft and rotates at a high speed along with the main shaft, the pressurizing sealing orifice plate is fixed at the inlet of the pump body through a fastener, and a sealing cavity structure is formed by a gap between the pressurizing sealing orifice plate and the impeller; the impeller is fixedly connected with the main shaft through a transmission key.
2. The pressurized seal economizer for pumps of claim 1 wherein: the sealed cavity structure that forms between pressurization sealed orifice plate and the impeller ring includes: a pressurizing sealing pore plate fixedly connected to the pump body through a fastener by screw threads, and a plurality of through holes are uniformly distributed along the circumferential direction of the pore plate; the impeller coupled to the main shaft is fixed by a coupling screw through a screw.
3. The supercharged sealing energy-saving device for the pump according to claim 1 or 2, characterized in that: the impeller is fixed on the main shaft through threads by a connecting screw.
4. The pressurized seal economizer for pumps of claim 1 wherein: the fastener is a screw, and the pressurizing sealing orifice plate is fixed on the pump body through threads by the screw.
5. The pressurized seal economizer for pumps of claim 2 wherein: the through-hole is opened on the sealed orifice plate of pressurization, and the shape of through-hole includes: cylindrical through hole, conical through hole and cylinder circular cone combination shape through-hole.
6. The pressurized seal economizer for pumps of claim 5 wherein: the through hole depth range is as follows: 30-60 mm, pore size range: 5-30 mm; the length ratio range of the cylindrical and conical combined through hole is as follows: 1:1-3:1.
7. The pressurized seal economizer for pumps of claim 1 wherein: and a stepped annular bulge structure is arranged at the inlet of the impeller.
8. The pressurized seal economizer for pumps of claim 1 wherein: the impeller is a closed impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648718.7U CN214742310U (en) | 2021-03-30 | 2021-03-30 | Booster-type sealing energy-saving device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120648718.7U CN214742310U (en) | 2021-03-30 | 2021-03-30 | Booster-type sealing energy-saving device for pump |
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| Publication Number | Publication Date |
|---|---|
| CN214742310U true CN214742310U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120648718.7U Active CN214742310U (en) | 2021-03-30 | 2021-03-30 | Booster-type sealing energy-saving device for pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027805A (en) * | 2021-03-30 | 2021-06-25 | 上海凯泉泵业（集团）有限公司 | Booster-type sealing energy-saving device for pump |
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2021
- 2021-03-30 CN CN202120648718.7U patent/CN214742310U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027805A (en) * | 2021-03-30 | 2021-06-25 | 上海凯泉泵业（集团）有限公司 | Booster-type sealing energy-saving device for pump |
| CN113027805B (en) * | 2021-03-30 | 2024-05-17 | 上海凯泉泵业（集团）有限公司 | Pressurized sealing energy-saving device for pump |
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