CN213540826U - High-efficient type rotary jet pump - Google Patents
High-efficient type rotary jet pump Download PDFInfo
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- CN213540826U CN213540826U CN202021866273.1U CN202021866273U CN213540826U CN 213540826 U CN213540826 U CN 213540826U CN 202021866273 U CN202021866273 U CN 202021866273U CN 213540826 U CN213540826 U CN 213540826U
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- impeller
- liquid
- jet pump
- transmission shaft
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Abstract
The utility model discloses a high-efficient type rotary jet pump, including the bearing box, install the transmission shaft through the bearing in the bearing box, be connected with the shell body on the right side of bearing box, be connected with the apron on the right side of shell body, be connected with the business turn over water on the right side of apron, the right-hand member of transmission shaft in the shell body is connected with the rotor part that is used for the liquid acceleration rate, install mechanical seal seat on the rotor part, the cover is equipped with mechanical seal on mechanical seal seat, install the collector tube in business turn over water, the one end of collector tube is installed in business turn over water, the other end setting of collector tube is in the rotor part. The utility model changes the structure of the traditional single-side impeller, adopts the design of arranging the impellers face to face, reduces the disc friction loss in the rotor cavity, thereby improving the efficiency of the pump; in addition, the impeller structures arranged face to face offset the axial force generated between the impellers, thereby improving the stability of the product and prolonging the service life of the product.
Description
Technical Field
The utility model relates to a high-efficient type rotary jet pump belongs to fluid machinery technical field.
Background
The rotary jet pump is a centrifugal pump with low specific speed, and its outstanding features are smooth running and long service life. The rotary jet pump is mostly used in a working condition of small flow and high lift, the like products at home and abroad all adopt a structure of a single-side impeller at present, however, the single-side impeller can not effectively drive liquid in a pump cavity to synchronously rotate with the impeller when rotating, the disc friction loss of the liquid in the pump cavity is increased, and the operating efficiency of the pump is reduced.
Disclosure of Invention
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the high-efficiency rotary injection pump can effectively drive liquid in the pump cavity to synchronously rotate with the impeller, reduce the disc friction loss of the liquid and improve the operating efficiency of the pump.
A high-efficient type rotary jet pump, bearing box including the level setting, wear to be equipped with the transmission shaft in the bearing box, the both ends of transmission shaft are passed through the bearing and are installed at the bearing box, right side at the bearing box is connected with the shell body, right side at the shell body is connected with the apron, right side at the apron is connected with the business turn over water, the right-hand member of transmission shaft in the shell body is connected with the rotor part that is used for the liquid acceleration rate, install mechanical seal seat on the rotor part, the cover is equipped with the mechanical seal who is used for sealing liquid on mechanical seal seat, mechanical seal's flange is fixed between business turn over water and apron, install the collector tube that is used for liquid collection and pressure boost in business turn over water, the one end of collector tube is installed in business turn over water, the other end setting of: the rotor part comprises a first impeller and a second impeller, and a connecting sleeve which enables the first impeller and the second impeller to form a rotor chamber is arranged between the first impeller and the second impeller.
Preferably, the second impeller comprises a second rear cover plate and a second front cover plate tightly attached to the second rear cover plate, a plurality of flow channels for conveying liquid are radially formed in the right end face of the second rear cover plate, a through hole for sucking liquid is formed in the center of the second front cover plate, and the left side face of the second rear cover plate is connected to the transmission shaft in a matched manner through a tongue-and-groove.
Preferably, the first impeller comprises a first rear cover plate and a first front cover plate tightly attached to the first rear cover plate, a plurality of flow channels for conveying liquid are radially formed in the left end face of the first rear cover plate, and through holes for penetrating and installing liquid collecting pipes are formed in the centers of the first rear cover plate and the first front cover plate.
Further preferably, the right end of the transmission shaft is provided with a radial bearing for bearing radial load, and the left end of the transmission shaft is provided with a thrust bearing for bearing residual axial force.
Preferably, the liquid collecting pipe comprises a flat suction section with a flow channel inside, the flow channel of the suction section penetrates through the right side surface of the bottom from the front side surface of the top, a discharge section (7.2) matched with the suction section (7.1) in a tongue-and-groove manner is arranged on the right side surface of the bottom of the suction section (7.1), and a liquid discharge hole communicated with the flow channel of the suction section (7.1) is formed in the discharge section (7.2).
Further preferably, the suction section of the header pipe is located between the second impeller and the first impeller.
Further preferably, the inlet flange of the water inlet and outlet body can be installed in four directions of upward direction, downward direction, left direction and right direction.
Further preferably, the mechanical seal is a cartridge type mechanical seal.
Compared with the prior art, the invention has the following beneficial effects: according to the efficient rotary jet pump, the structure of the traditional single-side impeller is changed, the design of arranging the impellers in a face-to-face mode is adopted, when liquid enters the rotor cavity after being accelerated by the first impeller, the liquid with the speed reduced in the rotor cavity enters the second impeller again for acceleration, the liquid in the rotor cavity is forced to rotate synchronously with the impeller, and therefore disc friction loss in the rotor cavity is reduced, and the efficiency of the pump is improved; in addition, the impeller structures arranged face to face offset the axial force generated between the impeller structures, so that the stability of the product is improved, and the service life of the product is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the structure of the header.
Fig. 3 is a schematic structural view of the second impeller.
Fig. 4 is a schematic structural view of the first impeller.
Fig. 5 is a partial cross-sectional view of fig. 1.
In the figure: 1. bearing box 2, transmission shaft 3, second impeller 3.1, second back shroud 3.2, second front shroud 4, adapter sleeve 5, first impeller 5.1, first back shroud 5.2, first front shroud 6, business turn over water 7, collector pipe 7.1, suction section 7.2, discharge section 8, mechanical seal 9, mechanical seal seat 10, apron 11, shell body.
Detailed Description
The invention is further described below with reference to the accompanying drawings: the present invention is further illustrated by the following specific examples, which are not intended to limit the scope of the invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
As shown in fig. 1, the high-efficiency rotary jet pump comprises a bearing box 1 horizontally arranged, a transmission shaft 2 penetrates through the bearing box 1, two ends of the transmission shaft 2 are installed in the bearing box 1 through bearings, an outer shell 11 is connected to the right side of the bearing box 1, a cover plate 10 is connected to the right side of the outer shell 11, a water inlet and outlet body 6 is connected to the right side of the cover plate 10, a rotor component for accelerating the rotation of liquid is connected to the right end of the transmission shaft 2 in the outer shell 11, a mechanical seal seat 9 is installed on the rotor component, a mechanical seal 8 for sealing the liquid is sleeved on the mechanical seal seat 9, a connecting flange of the mechanical seal 8 is fixed between the water inlet and outlet body 6 and the cover plate 10, a liquid collecting pipe 7 for collecting and pressurizing the liquid is installed in the water inlet and outlet body 6, one end of the liquid collecting pipe 7 is installed in the water inlet and outlet body 6, the rotor part comprises a first impeller 5 and a second impeller 3, and a connecting sleeve 4 which forms an integral chamber with the first impeller 5 and the second impeller 3 is arranged between the first impeller 5 and the second impeller 3.
In this embodiment, the second impeller 3 includes a second rear cover plate 3.1 and a second front cover plate 3.2 tightly attached to the second rear cover plate 3.1, a plurality of flow channels for conveying liquid are radially disposed on a right end surface of the second rear cover plate 3.1, a through hole for sucking liquid is disposed in the center of the second front cover plate 3.2, and a left side surface of the second rear cover plate 3.1 is connected to the transmission shaft 2 through a tongue-and-groove fit. As shown in FIG. 3, the technical design of the section is compact in structure and convenient to manufacture and install.
The first impeller 5 comprises a first rear cover plate 5.1 and a first front cover plate 5.2 tightly attached to the first rear cover plate 5.1, a plurality of flow channels for conveying liquid are radially formed in the left end face of the first rear cover plate 5.1, and through holes for penetrating and installing the liquid collecting pipes 7 are formed in the centers of the first rear cover plate 5.1 and the first front cover plate 5.2. As shown in FIG. 4, the technical design of the section is compact in structure and convenient to manufacture and install.
The right end of the transmission shaft 2 is provided with a radial bearing for bearing radial load, and the left end of the transmission shaft 2 is provided with a thrust bearing for bearing residual axial force. As shown in figure 1, through the technical design of the section, the bearing capacity of the pump is improved, and the service life of equipment is prolonged.
The liquid collecting pipe 7 comprises a suction section 7.1 which is flat outside and provided with a flow channel inside, the flow channel of the suction section 7.1 penetrates through the right side surface of the bottom from the front side surface of the top, a discharge section 7.2 matched with the suction section 7.1 in a tongue-and-groove manner is arranged on the right side surface of the bottom of the suction section 7.1, and a liquid discharge hole communicated with the flow channel of the suction section 7.1 is formed in the discharge section 7.2. As shown in figure 2, the technical design of the section is beneficial to the production and the manufacture of the liquid collecting pipe.
The suction section 7.1 of the collector tube 7 is located intermediate the second impeller 3 and the first impeller 5. As shown in figure 1, by means of the technical design of the section, the bypass loss generated by high-speed liquid in the rotor cavity and the liquid collecting pipe 7 is reduced, and the efficiency of the pump is improved.
The inlet flange of the water inlet and outlet body 6 can be installed in four directions, namely upward, downward, leftward and rightward. The technical design of the section is beneficial to the installation and the disassembly of the equipment.
The mechanical seal 8 is a cartridge type mechanical seal. The technical design of the section prolongs the service life of the mechanical seal and facilitates the installation and the disassembly of the mechanical seal.
As shown in fig. 1 and 5, when the liquid collecting device works, the driving machine drives the transmission shaft 2 to rotate at a high speed, the transmission shaft 2 drives the rotor part to rotate, liquid enters from the inlet of the water inlet and outlet body 6 and then enters the first impeller 5 through the inner hole of the mechanical seal seat 9, when the first impeller 5 rotates at a high speed, the liquid in the flow channel is thrown into the rotor part under the action of centrifugal force, part of the liquid which enters the rotor part and has been decelerated enters the second impeller 3 again, the liquid enters the rotor part again after being accelerated by the second impeller 3, because the outlet diameters of the first impeller 5 and the second impeller 3 are consistent with the circumferential diameter of the inlet of the liquid collecting pipe 7, the high-speed liquid discharged from the first impeller 5 and the second impeller 3 enters the liquid collecting pipe 7, and because the flow channel area of the liquid collecting pipe 7 is gradually increased from the inlet to the outlet, the speed of the liquid is gradually, pressure then rises gradually to turn into the kinetic energy of liquid pressure energy, through the acceleration rate of second impeller 3, reduced the disc friction loss of liquid in the rotor part cavity, also guaranteed the velocity of flow that liquid got into collector tube 7, thereby improved the work efficiency of pump.
As shown in fig. 1, when the equipment is operated, the first impeller 5 and the second impeller 3 are arranged face to face, the outlet directions of the first impeller 5 and the second impeller 3 which are symmetrically arranged are opposite, the flow rates are consistent, and the generated axial forces are mutually offset, so that the load force borne by the rotor component is reduced, the operation stability of the equipment is improved, and the service life of the equipment is prolonged.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A high-efficiency rotary jet pump comprises a bearing box (1) which is horizontally arranged, a transmission shaft (2) is arranged in the bearing box (1) in a penetrating way, two ends of the transmission shaft (2) are installed in the bearing box (1) through bearings, the right side of the bearing box (1) is connected with an outer shell (11), the right side of the outer shell (11) is connected with a cover plate (10), the right side of the cover plate (10) is connected with a water inlet and outlet body (6), the right end of the transmission shaft (2) in the outer shell (11) is connected with a rotor component for liquid acceleration, a mechanical sealing seat (9) is installed on the rotor component, a mechanical seal (8) for sealing liquid is sleeved on the mechanical sealing seat (9), a connecting flange of the mechanical seal (8) is fixed between the water inlet and outlet body (6) and the cover plate (10), a liquid collecting pipe (7) for collecting and pressurizing liquid is installed in, the one end of collector tube (7) is installed in business turn over water (6), and the other end setting of collector tube (7) is in the rotor part, its characterized in that: the rotor component comprises a first impeller (5) and a second impeller (3), and a connecting sleeve (4) which enables the first impeller (5) and the second impeller (3) to form a rotor chamber is arranged between the first impeller (5) and the second impeller (3).
2. A high efficiency rotary jet pump as claimed in claim 1, wherein: the second impeller (3) comprises a second rear cover plate (3.1) and a second front cover plate (3.2) tightly attached to the second rear cover plate (3.1), a plurality of flow channels for conveying liquid are radially formed in the right end face of the second rear cover plate (3.1), a through hole for sucking liquid is formed in the center of the second front cover plate (3.2), and the left side face of the second rear cover plate (3.1) is connected to the transmission shaft (2) in a matched mode through a tongue-and-groove.
3. A high efficiency rotary jet pump as claimed in claim 1, wherein: the first impeller (5) comprises a first rear cover plate (5.1) and a first front cover plate (5.2) tightly attached to the first rear cover plate (5.1), a plurality of flow channels for conveying liquid are radially formed in the left end face of the first rear cover plate (5.1), and through holes for penetrating and installing the liquid collecting pipes (7) are formed in the centers of the first rear cover plate (5.1) and the first front cover plate (5.2).
4. A high efficiency rotary jet pump as claimed in claim 1, wherein: the right end of the transmission shaft (2) is provided with a radial bearing for bearing radial load, and the left end of the transmission shaft (2) is provided with a thrust bearing for bearing residual axial force.
5. A high efficiency rotary jet pump as claimed in claim 1, wherein: the liquid collecting pipe (7) comprises a suction section (7.1) which is flat outside and provided with a flow channel inside, the flow channel of the suction section (7.1) penetrates through the right side surface of the bottom from the front side surface of the top, a discharge section (7.2) matched with the suction section (7.1) in a tongue-and-groove mode is arranged on the right side surface of the bottom of the suction section (7.1), and a liquid discharge hole communicated with the flow channel of the suction section (7.1) is formed in the discharge section (7.2).
6. A high efficiency rotary jet pump as claimed in claim 5, wherein: the suction section (7.1) is located in the middle of the second impeller (3) and the first impeller (5).
7. A high efficiency rotary jet pump as claimed in claim 5, wherein: the inlet flange of the water inlet and outlet body (6) can be installed in four directions, namely upward, downward, left and right.
8. A high efficiency rotary jet pump as claimed in claim 1, wherein: the mechanical seal (8) adopts a cartridge type mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866273.1U CN213540826U (en) | 2020-09-01 | 2020-09-01 | High-efficient type rotary jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866273.1U CN213540826U (en) | 2020-09-01 | 2020-09-01 | High-efficient type rotary jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213540826U true CN213540826U (en) | 2021-06-25 |
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ID=76490575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021866273.1U Active CN213540826U (en) | 2020-09-01 | 2020-09-01 | High-efficient type rotary jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213540826U (en) |
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2020
- 2020-09-01 CN CN202021866273.1U patent/CN213540826U/en active Active
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