CN114233633A - Horizontal single-stage centrifugal pump with pressure boost runner - Google Patents
Horizontal single-stage centrifugal pump with pressure boost runner Download PDFInfo
- Publication number
- CN114233633A CN114233633A CN202210020828.8A CN202210020828A CN114233633A CN 114233633 A CN114233633 A CN 114233633A CN 202210020828 A CN202210020828 A CN 202210020828A CN 114233633 A CN114233633 A CN 114233633A
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- pump
- flow channel
- water suction
- electromagnetic valve
- outlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000005192 partition Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0005—Control, e.g. regulation, of pumps, pumping installations or systems by using valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a horizontal single-stage centrifugal pump with a pressurizing flow channel, which comprises a pump body, the pressurizing flow channel, an outlet one-way electromagnetic valve and a pressurizing flow channel one-way electromagnetic valve, wherein the pump body is provided with a pump inlet and a pump outlet; the pump body comprises a water suction chamber, an impeller and a volute, wherein a water suction chamber partition plate is arranged in the water suction chamber, and one end of the water suction chamber partition plate is close to an impeller inlet, so that the water suction chamber is divided into a main water suction space and a backflow space by the water suction chamber partition plate; the pressurizing flow channel is arranged between the pump body and the outlet one-way electromagnetic valve and is respectively communicated with the outlet of the volute and the backflow space; the one-way electromagnetic valve of the pressurizing flow passage is arranged on the pressurizing flow passage. The invention separates the water suction chamber by arranging the pressurizing flow passage, and the adding flow passage and the pump outlet are respectively provided with the one-way valve, thereby adjusting the opening and closing of the two one-way valves according to the pump lift, further improving the pump lift of the whole centrifugal pump and expanding the application range of the single-stage pump.
Description
Technical Field
The invention relates to the field of fluid machinery, in particular to a horizontal single-stage centrifugal pump with a pressurizing flow channel.
Background
The pump is very high in the total electricity consumption of China, and the centrifugal pump is the majority of the pumps. Centrifugal pumps are in a large variety, and a horizontal single-stage centrifugal pump is a common pump, is mainly used for conveying clear water without solid particles or liquid with physical and chemical properties similar to that of the clear water, and is widely applied to the fields of water supply, industry, irrigation and the like. However, the horizontal single-stage centrifugal pump is limited by the number of stages, the lift is not very high, the adjustable range of the lift is small, and the adjustment is inconvenient. If the lift and the adjustable range of the horizontal single-stage centrifugal pump can be increased and intelligent control is added, the application scene and range can be greatly expanded.
Disclosure of Invention
Aiming at the technical problems of low lift and inconvenient adjustment of the existing horizontal single-stage centrifugal pump, the invention provides a horizontal single-stage centrifugal pump with a pressurizing flow channel, and the specific technical scheme is as follows:
a horizontal single-stage centrifugal pump with a pressurizing flow channel comprises a pump body, a pressurizing flow channel, an outlet one-way electromagnetic valve and a pressurizing flow channel one-way electromagnetic valve;
the pump body comprises a water suction chamber, an impeller and a volute, a water suction chamber partition plate is arranged in the water suction chamber, and one end of the water suction chamber partition plate is close to an impeller inlet, so that the water suction chamber is divided into a main water suction space and a backflow space by the water suction chamber partition plate;
the pressurizing flow channel is arranged between the pump body and the outlet one-way electromagnetic valve and is respectively communicated with the outlet of the volute and the backflow space; the pressurizing flow channel one-way electromagnetic valve is arranged on the pressurizing flow channel.
Furthermore, both the outlet one-way electromagnetic valve of the supercharging flow channel and the supercharging flow channel one-way electromagnetic valve are electromagnetic valves with adjustable opening pressure, and the opening pressure of the outlet one-way electromagnetic valve is greater than the opening pressure of the supercharging flow channel one-way electromagnetic valve; and when the lift of the pump is lower than a set value, controlling the one-way electromagnetic valve of the pressurizing flow channel to be opened, and simultaneously closing the one-way electromagnetic valve of the outlet until the lift of the pump is not lower than the set value, closing the one-way electromagnetic valve of the pressurizing flow channel, and opening the one-way electromagnetic valve of the outlet.
Further, the section of the water suction chamber partition plate is arc-shaped, so that hydraulic loss is reduced.
Further, the single-stage pump is a horizontal single-stage centrifugal pump.
Further, the position where the pressurizing flow passage and the return space communicate with each other is spaced from the inlet of the pump by a set distance.
The invention has the following beneficial effects:
the horizontal single-stage centrifugal pump separates the water suction chamber by arranging the pressurizing flow passage, and the adding flow passage and the pump outlet are respectively provided with the one-way valve, so that the opening and closing of the two one-way valves are adjusted according to the pump lift, the pump lift of the whole centrifugal pump is further improved, and the application range of the single-stage pump is expanded; and the two check valves can be connected into a control system, so that the opening and closing and state detection of the valves can be automatically carried out in real time according to actual needs, and the control is convenient.
Drawings
FIG. 1 is a sectional view of a horizontal single-stage centrifugal pump with a pressurized flow path of the present invention;
the pump comprises a pump body 1, an outlet one-way intelligent electromagnetic valve 2, a pressurizing flow channel 3, a pressurizing flow channel one-way intelligent electromagnetic valve 4, a water suction chamber partition plate 5, an impeller 101, a pump shaft 102, a mechanical seal 103, a volute 104 and a water suction chamber 105; the arrow direction is the installation direction of the outlet one-way solenoid valve 3 and the pressurizing flow channel one-way solenoid valve 4.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the objects and effects of the present invention will become more apparent, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
As shown in figure 1, the horizontal single-stage centrifugal pump with the supercharging flow channel comprises a pump body 1, a supercharging flow channel 2, an outlet one-way electromagnetic valve 3 and a supercharging flow channel one-way electromagnetic valve 4. The pump body 1 includes an impeller 101, a pump shaft 102, a mechanical seal 103, a volute 104, and a suction chamber 105. A water suction chamber partition plate 5 is arranged in the water suction chamber 105, and the water suction chamber 105 is divided into a main water suction space communicated with the main pipeline and a return space communicated with the pressurizing flow passage by the water suction chamber partition plate 5. The pressurizing flow channel 2 is arranged between the pump body 1 and the outlet one-way electromagnetic valve 3, and the pressurizing flow channel 2 is respectively communicated with the outlet of the volute 104 and the backflow space. In order to reduce the energy loss of the water during the return flow, the pressurizing channel 3 has as few bends as possible and as short a length as possible. The outlet one-way electromagnetic valve 3 controls water to flow out of the pump, and the pressurizing flow channel one-way electromagnetic valve 4 controls water at the outlet to flow back to the backflow space of the water suction chamber. The suction chamber partition 5 is spaced as small as possible from the impeller 101 so that liquid can directly enter the impeller 101 to reduce energy loss. To reduce the amount of leakage from the pump and to reduce energy losses, the present invention employs a mechanical seal 103.
For the convenience of intelligent control, the outlet one-way electromagnetic valve 3 and the pressurizing flow channel one-way electromagnetic valve 4 are electronic valves with adjustable opening pressure.
In order to ensure that the fluid in the pressurizing flow channel is not contacted with the fluid in the pipeline as far as possible and directly enters the impeller 101, the distance between the water suction chamber partition plate 5 and the impeller 101 is as small as possible.
In order to give consideration to the integrity and stability of the pump, the position where the pressurizing flow channel 2 is communicated with the backflow space is spaced from the inlet of the pump by a certain distance, and the straight pipe section where the pressurizing flow channel 2 is communicated with the worm wheel outlet is required to have a certain length, so that the fluid at the outlet is pressurized for the second time after being stabilized.
The outlet one-way electromagnetic valve 3 and the pressurizing flow channel one-way electromagnetic valve 4 are both electromagnetic valves with adjustable opening pressure, can be connected to a control system, and can be used for remotely controlling and modifying the set lift through the control system and monitoring pressure change.
When the horizontal single-stage centrifugal pump with the supercharging flow channel works, working fluid enters the pump from the inlet, and enters the volute 104 after being accelerated by the impeller 101 so as to convert the speed potential energy of water into pressure energy. When water reaches the outlet one-way intelligent electromagnetic valve 2, lift data of the water is measured, if the lift is higher than a set value, the outlet one-way electromagnetic valve 2 is opened, meanwhile, the pressurizing flow channel one-way electromagnetic valve 4 is kept closed, the water flows out of the device, if the lift is lower than the set value, the pressurizing flow channel one-way electromagnetic valve 4 is opened, meanwhile, the outlet one-way electromagnetic valve 2 is kept closed, the water flows back to a backflow space of the water suction chamber 105 from the pressurizing flow channel 3, then enters the impeller 101 again for secondary pressurization, when the lift measured at the outlet of the pump is not smaller than the set value, the pressurizing flow channel one-way electromagnetic valve 4 is closed, the outlet one-way electromagnetic valve 2 is opened, the circulating pressurization is stopped, and the water flows out from the outlet. When the requirement for the pump lift of the water pump changes, the required pump lift can be input in the system or the outlet one-way electromagnetic valve 3 and the pressurizing flow channel one-way electromagnetic valve 4 to make corresponding changes, the adjustment is convenient and fast, and the water pump can adapt to different application scenes.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and although the invention has been described in detail with reference to the foregoing examples, it will be apparent to those skilled in the art that various changes in the form and details of the embodiments may be made and equivalents may be substituted for elements thereof. All modifications, equivalents and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (5)
1. A horizontal single-stage centrifugal pump with a pressurizing flow channel is characterized by comprising a pump body (1), a pressurizing flow channel (2), an outlet one-way electromagnetic valve (3) and a pressurizing flow channel one-way electromagnetic valve (4);
the pump body (1) comprises a water suction chamber (105), an impeller (101) and a volute (104), wherein a water suction chamber partition plate (5) is arranged in the water suction chamber (105), one end of the water suction chamber partition plate (5) is close to an impeller inlet, so that the water suction chamber partition plate (5) divides the water suction chamber (105) into a main water suction space and a backflow space;
the pressurizing flow channel (2) is arranged between the pump body (1) and the outlet one-way electromagnetic valve (3), and the pressurizing flow channel (2) is respectively communicated with the outlet of the volute (104) and the backflow space; the pressurizing flow channel one-way electromagnetic valve (4) is arranged on the pressurizing flow channel (2).
2. The horizontal single-stage centrifugal pump with the supercharging flow channel as claimed in claim 1, characterized in that the outlet one-way solenoid valve (3) and the supercharging flow channel one-way solenoid valve (4) of the supercharging flow channel (2) are both solenoid valves with adjustable opening pressure, and the opening pressure of the outlet one-way solenoid valve (3) is greater than the opening pressure of the supercharging flow channel one-way solenoid valve (4); when the pump lift is lower than a set value, the pressurizing flow channel one-way electromagnetic valve (4) is controlled to be opened, meanwhile, the outlet one-way electromagnetic valve (3) is closed, and when the pump lift is not lower than the set value, the pressurizing flow channel one-way electromagnetic valve (4) is closed, and the outlet one-way electromagnetic valve (3) is opened.
3. The horizontal single-stage centrifugal pump with a pressurizing flow passage according to claim 1, wherein the suction chamber partition (5) has an arc-shaped cross section, thereby reducing hydraulic loss.
4. The horizontal single-stage centrifugal pump with a pressurizing flow passage according to claim 1, wherein the single-stage pump is a horizontal single-stage centrifugal pump.
5. The horizontal single-stage centrifugal pump with a pressurizing flow passage according to claim 1, wherein the position where the pressurizing flow passage (2) communicates with the return space is spaced from the inlet of the pump by a set distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020828.8A CN114233633A (en) | 2022-01-10 | 2022-01-10 | Horizontal single-stage centrifugal pump with pressure boost runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020828.8A CN114233633A (en) | 2022-01-10 | 2022-01-10 | Horizontal single-stage centrifugal pump with pressure boost runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233633A true CN114233633A (en) | 2022-03-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210020828.8A Pending CN114233633A (en) | 2022-01-10 | 2022-01-10 | Horizontal single-stage centrifugal pump with pressure boost runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233633A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641328Y (en) * | 2003-09-03 | 2004-09-15 | 林恒远 | Spiral shell shaped self-sucking type centrifugal pump |
| CN202266439U (en) * | 2011-09-30 | 2012-06-06 | 湖北省潜江市民福化工机械有限公司 | Backflow boosting pump for producing triethylamine resin |
| CN105604952A (en) * | 2016-01-03 | 2016-05-25 | 詹白勺 | Vertical centrifugal oil pump |
| CN108843580A (en) * | 2018-07-16 | 2018-11-20 | 上海瑞晨环保科技有限公司 | High volumetric efficiency self priming centrifugal pump |
| US20200088201A1 (en) * | 2018-09-17 | 2020-03-19 | Sulzer Management Ag | Multiphase pump |
| CN111664097A (en) * | 2020-07-06 | 2020-09-15 | 江苏大学镇江流体工程装备技术研究院 | Self-priming device of centrifugal pump |
-
2022
- 2022-01-10 CN CN202210020828.8A patent/CN114233633A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641328Y (en) * | 2003-09-03 | 2004-09-15 | 林恒远 | Spiral shell shaped self-sucking type centrifugal pump |
| CN202266439U (en) * | 2011-09-30 | 2012-06-06 | 湖北省潜江市民福化工机械有限公司 | Backflow boosting pump for producing triethylamine resin |
| CN105604952A (en) * | 2016-01-03 | 2016-05-25 | 詹白勺 | Vertical centrifugal oil pump |
| CN108843580A (en) * | 2018-07-16 | 2018-11-20 | 上海瑞晨环保科技有限公司 | High volumetric efficiency self priming centrifugal pump |
| US20200088201A1 (en) * | 2018-09-17 | 2020-03-19 | Sulzer Management Ag | Multiphase pump |
| CN111664097A (en) * | 2020-07-06 | 2020-09-15 | 江苏大学镇江流体工程装备技术研究院 | Self-priming device of centrifugal pump |
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