CN213392693U - Multi-stage direct-connection rotary jet pump with adjustable flow - Google Patents
Multi-stage direct-connection rotary jet pump with adjustable flow Download PDFInfo
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- CN213392693U CN213392693U CN202021869532.6U CN202021869532U CN213392693U CN 213392693 U CN213392693 U CN 213392693U CN 202021869532 U CN202021869532 U CN 202021869532U CN 213392693 U CN213392693 U CN 213392693U
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Abstract
The utility model relates to a flow adjustable multistage formula directly links rotatory jet pump, including the shell body, be connected with the motor in the left side of shell body, the cover is equipped with the shaft coupling sleeve on the main shaft of motor, is connected with the rotor part on the right side of shaft coupling sleeve, is connected with mechanical seal cover on the right side of rotor part, and the cover is equipped with mechanical seal on mechanical seal cover, is connected with the apron on the right side of shell body, is connected with the business turn over water on the right side of apron, but installs collecting pipe in the business turn over water. The liquid discharge hole is formed in the back face of the liquid collecting pipe suction inlet, and the liquid discharge screw with the through hole is installed at the liquid discharge hole, so that the purpose of changing the flow of the rotary jet pump is achieved, the specification quantity of the liquid collecting pipe is reduced, and the production cost of manufacturing enterprises is reduced.
Description
Technical Field
The utility model relates to a flow adjustable multiple-step type directly links rotatory 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 has multiple related fields and wide required flow range, and the main current way of adjusting the flow of the rotary jet pump is realized by replacing liquid collecting pipes with different specifications, so that the liquid collecting pipes with multiple specifications need to be designed and manufactured, the manufacturing and management cost of manufacturing enterprises is increased, and the stock quantity of spare parts of users is increased.
Disclosure of Invention
According to the not enough among the above prior art, the utility model discloses the technical problem who solves is: the multi-stage direct-connection rotary jet pump with the adjustable flow is provided, the specification number of the liquid collecting pipes is reduced, and therefore manufacturing cost and management cost are reduced.
Flow adjustable multistage formula directly link rotatory jet pump, shell body including the level setting, left side at the shell body is connected with the motor, the cover is equipped with the shaft coupling sleeve on the main shaft of motor, the right side of shaft coupling sleeve in the shell body is connected with the rotor part that is used for the liquid acceleration rate, the left side of rotor part is connected on the shaft coupling sleeve, the right side of rotor part is connected with mechanical seal cover, the cover is equipped with the mechanical seal who is used for sealing liquid on mechanical seal cover, right side at the shell body is connected with the apron, right side at the apron is connected with the business turn over water body, mechanical seal's flange is fixed between apron and business turn over water body, install the collector tube that is used for liquid collection and pressure boost in business turn over water body, the one end of collector tube is fixed in business turn over water body: the rotor component comprises a first impeller and a second impeller, and a connecting sleeve which enables the first impeller and the second impeller to form an integral chamber is arranged between the first impeller and the second impeller; the liquid collecting pipe comprises a pressurizing pipe which is flat outside and internally provided with a flow channel, the flow channel of the pressurizing pipe penetrates through the right side surface of the bottom from the front side surface of the top, a liquid discharging pipe matched with a tongue-and-groove of the pressurizing pipe is connected to the right side surface of the bottom of the pressurizing pipe, a liquid discharging hole communicated with the flow channel of the pressurizing pipe is formed in the liquid discharging pipe, a liquid discharging hole communicated with the inlet flow channel is formed in the rear side surface of the top of the pressurizing pipe, a liquid discharging screw is installed in the liquid discharging hole, and a through hole facilitating liquid discharging is formed in the center.
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 side surface 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.
Preferably, the second impeller comprises a second rear cover plate and a second front cover plate tightly attached to the second rear cover plate, the right side surface of the second rear cover plate is radially provided with a plurality of flow channels for conveying liquid, the center of the second front cover plate is provided with a through hole facilitating liquid suction, and the left side of the second rear cover plate is connected to the coupling sleeve in a matched manner through a tongue-and-groove.
Preferably, the liquid discharge pipe is a hollow pipe with a closed left end through hole and a closed right end, and a through hole for discharging liquid is formed in the liquid discharge pipe corresponding to the outlet of the water inlet and outlet body.
Further preferably, a polygonal counter bore convenient for wrench operation is arranged at an outlet of the liquid discharge screw.
Further preferably, the pressure inlet of the header is located intermediate the first impeller and the second impeller.
Further preferably, the drain hole on the rear side of the top of the pressure increasing duct is opened in a tangential direction of the inlet radius R1 of the pressure increasing duct.
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 flow-adjustable multistage direct-connection rotary jet pump, the back surface of the suction inlet of the liquid collecting pipe is provided with the liquid discharging hole which is convenient for changing the suction volume of the liquid collecting pipe, the liquid discharging screw with the central through hole is installed at the outlet of the liquid discharging hole through threads, and the suction volume of the liquid collecting pipe is divided by replacing the liquid discharging screws with different apertures, so that the purpose of changing the flow of the rotary jet pump is achieved, the specification and the number of the liquid collecting pipe are reduced, and the production cost of manufacturing enterprises is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the second impeller.
Fig. 3 is a schematic structural diagram of the first impeller.
FIG. 4 is a schematic view of the structure of the header.
Fig. 5 is a partial cross-sectional view of fig. 4.
Fig. 6 is a partial cross-sectional view of fig. 1.
Fig. 7 is a partial enlarged view of I.
In the figure: 1. the device comprises a motor 2, a coupling sleeve 3, a second impeller 3.1, a second rear cover plate 3.2, a second front cover plate 4, a connecting sleeve 5, a first impeller 5.1, a first rear cover plate 5.2, a first front cover plate 6, a cover plate 7, a mechanical seal 8, a water inlet and outlet body 9, a liquid collecting pipe 9.1, a pressure increasing pipe 9.2, a liquid discharge pipe 10, a mechanical seal sleeve 11, an outer shell 12 and a liquid discharge screw.
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, 4 and 5, the flow-adjustable multistage direct-connection rotary jet pump comprises an outer shell 11 horizontally arranged, a motor 1 is connected to the left side of the outer shell 11, a coupling sleeve 2 is sleeved on a spindle of the motor 1, a rotor component for increasing the speed of liquid is connected to the right side of the coupling sleeve 2 in the outer shell 11, the left side of the rotor component is connected to the coupling sleeve 2, a mechanical seal sleeve 10 is connected to the right side of the rotor component, a mechanical seal 7 for sealing liquid is sleeved on the mechanical seal sleeve 10, a cover plate 6 is connected to the right side of the outer shell 11, a water inlet and outlet body 8 is connected to the right side of the cover plate 6, a flange of the mechanical seal 7 is fixed between the cover plate 6 and the water inlet and outlet body 8, a liquid collecting pipe 9 for collecting and pressurizing liquid is installed in the water inlet and outlet body 8, one end of the liquid collecting pipe 9 is fixed, the rotor part 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 an integral chamber is arranged between the first impeller 5 and the second impeller 3; the liquid collecting pipe 9 comprises a pressurizing pipe 9.1 which is flat outside and provided with a flow channel inside, the flow channel of the pressurizing pipe 9.1 penetrates through the right side surface of the bottom from the front side surface of the top, a liquid discharging pipe 9.2 matched with a groove and a tongue of the pressurizing pipe 9.1 is connected to the right side surface of the bottom of the pressurizing pipe 9.1, a liquid discharging hole communicated with the flow channel of the pressurizing pipe 9.1 is formed in the liquid discharging pipe 9.2, a liquid discharging hole communicated with the inlet flow channel is formed in the rear side surface of the top of the pressurizing pipe 9.1, a liquid discharging screw 12 is installed in the liquid discharging hole, and a through hole convenient for discharging liquid is formed in the center of.
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 arranged on the left side surface of the first rear cover plate 5.1, and through holes for penetrating and installing the liquid collecting pipes 9 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. 3, the technical design of the section is compact in structure and convenient to manufacture and install.
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 arranged on the right side surface of the second rear cover plate 3.1, a through hole facilitating liquid suction is formed in the center of the second front cover plate 3.2, and the left side of the second rear cover plate 3.1 is connected to the connecting shaft sleeve 2 through a tongue-and-groove in a matched mode. As shown in FIG. 2, the technical design of the section is compact in structure and convenient to manufacture and install.
The liquid discharge pipe 9.2 is a hollow pipe with a closed left end through hole and a closed right end, and a through hole for discharging liquid is arranged on the liquid discharge pipe 9.2 corresponding to the outlet of the water inlet and outlet body 8. As shown in figures 1 and 4, the design of the section facilitates the production, the manufacture, the installation and the disassembly of the liquid collecting pipe 9.
The outlet of the liquid discharge screw 12 is provided with a polygonal counter bore which is convenient for the operation of a wrench. As shown in fig. 7, this segment of the art design facilitates replacement of the drain screw 12.
The booster duct 9.1 of the header 9 is located intermediate the first impeller 5 and the second impeller 3. As shown in figure 1, the technical design of the section reduces the friction force between the liquid collecting pipe 9 and the liquid in the rotor cavity, and improves the efficiency of the pump.
The liquid discharge hole on the back side of the top of the pressure increasing pipe 9.1 is opened in the tangential direction of the inlet radius R1 of the pressure increasing pipe 9.1. As shown in fig. 5, this section of the technical design facilitates diversion of the liquid entering the inlet of the booster duct 9.1, and also avoids the influence on the suction performance of the booster duct 9.1 caused by turbulence generated during diversion of the liquid.
The mechanical seal 7 is a cartridge type mechanical seal. The technical design of the section is beneficial to the installation and the disassembly of the mechanical seal, and the service life of the seal is also prolonged.
As shown in fig. 1 and 6, during operation, the motor 1 drives the rotor component to rotate through the coupling sleeve 2, liquid enters from the inlet of the water inlet and outlet body 8 and then enters the first impeller 5 through the inner hole of the mechanical seal sleeve 10, the first impeller 5 rotates at high speed to throw the liquid in the flow channel into the rotor component, part of low-speed liquid in the rotor component enters the second impeller 3 and enters the rotor component again after being accelerated by the second impeller 3, because the diameter of the circumference of the outlet of the impeller is consistent with the diameter of the inlet of the liquid collecting pipe 9, the high-speed liquid flowing out of the first impeller 5 and the second impeller 3 enters the liquid collecting pipe 9, because the area of the flow channel of the liquid collecting pipe 9 is gradually increased from the inlet to the outlet, the flow speed of the liquid entering the liquid collecting pipe 7 is gradually reduced, the pressure is gradually increased, so that the kinetic energy of the liquid is converted into pressure energy, and the speed is increased twice through, the speed of the inlet of the header pipe 9 is ensured, thereby improving the efficiency of the pump.
As shown in fig. 6 and 7, when the flow rate of the pump needs to be increased, the drainage screw 12 installed on the header pipe 9 is removed, and the drainage screw 12 with a small or non-porous hole is replaced, so that the liquid shunted from the inlet of the header pipe 9 is reduced, the suction amount of the header pipe 9 is increased, and the flow rate of the pump is increased.
As shown in fig. 6 and 7, when the flow rate of the pump needs to be reduced, the drain screw 12 mounted on the header pipe 9 is removed, and one of the drain screws 12 having a larger hole diameter or not mounted is replaced, so that the liquid flow-off from the inlet of the header pipe 9 is increased, the suction amount of the header pipe 9 is reduced, and the flow rate of the pump is reduced.
As shown in fig. 1, the rotor part of the rotary jet pump is directly connected to the main shaft of the motor 1 through the coupling sleeve 2, so that parts such as a bearing box, a transmission shaft, a bearing, a coupling and the like adopted by the traditional rotary jet pump are eliminated, the cost of the rotary jet pump is reduced, and the market competitiveness of enterprises is improved.
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. The utility model provides a rotatory jet pump is directly connected to multistage formula of flow adjustable, shell body (11) including the level setting, be connected with motor (1) in the left side of shell body (11) outward, the cover is equipped with coupling sleeve (2) on the main shaft of motor (1), the right side of coupling sleeve (2) in shell body (11) is connected with the rotor part that is used for the liquid acceleration rate, the left side of rotor part is connected on coupling sleeve (2), be connected with mechanical seal cover (10) on the right side of rotor part, the cover is equipped with mechanical seal (7) that are used for sealed liquid on mechanical seal cover (10), the right side of shell body (11) is connected with apron (6), the right side of apron (6) is connected with business turn over water body (8), the flange of mechanical seal (7) is fixed between apron (6) and business turn over water body (8), install collector tube (9) that are used for liquid, the one end of collector tube (9) is fixed in business turn over water (8), and the other end setting of collector tube (9) 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 an integral chamber is arranged between the first impeller (5) and the second impeller (3); the liquid collecting pipe (9) comprises a pressurizing pipe (9.1) which is flat outside and provided with a flow channel inside, the flow channel of the pressurizing pipe (9.1) penetrates through the right side surface of the bottom from the front side surface of the top, a liquid discharging pipe (9.2) matched with a tongue-and-groove of the pressurizing pipe (9.1) is connected to the right side surface of the bottom of the pressurizing pipe (9.1), a liquid discharging hole communicated with the flow channel of the pressurizing pipe (9.1) is formed in the liquid discharging pipe (9.2), a liquid discharging hole communicated with the inlet flow channel is formed in the rear side surface of the top of the pressurizing pipe (9.1), a liquid discharging screw (12) is installed in the liquid discharging hole, and a through hole convenient for liquid discharging is formed in the center of the.
2. The adjustable-flow multistage direct-coupled rotary jet pump of 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 side surface of the first rear cover plate (5.1), and through holes for penetrating and installing liquid collecting pipes (9) are formed in the centers of the first rear cover plate (5.1) and the first front cover plate (5.2).
3. The adjustable-flow multistage direct-coupled rotary jet pump of 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 side surface of the second rear cover plate (3.1), a through hole facilitating liquid suction is formed in the center of the second front cover plate (3.2), and the left side of the second rear cover plate (3.1) is connected to the coupling sleeve (2) in a matched mode through a tongue-and-groove.
4. The adjustable-flow multistage direct-coupled rotary jet pump of claim 1, wherein: the liquid discharge pipe (9.2) is a hollow pipe with a closed left end through hole and a closed right end, and a through hole for discharging liquid is arranged on the liquid discharge pipe (9.2) corresponding to the outlet of the water inlet and outlet body (8).
5. The adjustable-flow multistage direct-coupled rotary jet pump of claim 1, wherein: the outlet of the liquid discharge screw (12) is provided with a polygonal counter bore which is convenient for the operation of a wrench.
6. The adjustable-flow multistage direct-coupled rotary jet pump of claim 4, wherein: the booster pipe (9.1) of the liquid collecting pipe (9) is positioned between the first impeller (5) and the second impeller (3).
7. The adjustable-flow multistage direct-coupled rotary jet pump of claim 6, wherein: the liquid discharge hole on the back side surface of the top of the pressure increasing pipe (9.1) is arranged in the tangential direction of the inlet radius R1 of the pressure increasing pipe (9.1).
8. The adjustable-flow multistage direct-coupled rotary jet pump of claim 1, wherein: the mechanical seal (7) adopts a cartridge type mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869532.6U CN213392693U (en) | 2020-09-01 | 2020-09-01 | Multi-stage direct-connection rotary jet pump with adjustable flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021869532.6U CN213392693U (en) | 2020-09-01 | 2020-09-01 | Multi-stage direct-connection rotary jet pump with adjustable flow |
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| Publication Number | Publication Date |
|---|---|
| CN213392693U true CN213392693U (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021869532.6U Active CN213392693U (en) | 2020-09-01 | 2020-09-01 | Multi-stage direct-connection rotary jet pump with adjustable flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386625A (en) * | 2023-12-12 | 2024-01-12 | 江苏飞跃泵业股份有限公司 | Rotary jet pump with jet pressurizing function |
-
2020
- 2020-09-01 CN CN202021869532.6U patent/CN213392693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117386625A (en) * | 2023-12-12 | 2024-01-12 | 江苏飞跃泵业股份有限公司 | Rotary jet pump with jet pressurizing function |
| CN117386625B (en) * | 2023-12-12 | 2024-03-01 | 江苏飞跃泵业股份有限公司 | Rotary jet pump with jet pressurizing function |
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