CN220118346U - High-efficiency self-priming jet pump - Google Patents
High-efficiency self-priming jet pump Download PDFInfo
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- CN220118346U CN220118346U CN202320889750.3U CN202320889750U CN220118346U CN 220118346 U CN220118346 U CN 220118346U CN 202320889750 U CN202320889750 U CN 202320889750U CN 220118346 U CN220118346 U CN 220118346U
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- water
- water inlet
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- pump shell
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 106
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 230000037452 priming Effects 0.000 claims 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a high-efficiency self-priming jet pump, which relates to the field of water pumps, and the technical scheme of the utility model comprises a pump shell; the pump shell is provided with a first water inlet and a water outlet, the shell walls of the pump shell are respectively provided with a water injection hole communicated with the inner cavity, and the water injection holes are provided with a first valve; the inner cavity of the pump shell is provided with a flow channel, the side wall of the front end of the flow channel is provided with a second water inlet, the second water inlet is communicated with the first water inlet, the rear end of the flow channel is communicated to the inner cavity of the pump shell through a suction impeller, and the suction impeller is driven by a motor. After the water pump pumps up water, the second valve is closed for circulation, so that energy waste is avoided, and the working efficiency of the suction impeller can be remarkably improved.
Description
Technical Field
The utility model relates to the field of water pumps, in particular to a high-efficiency self-priming jet pump.
Background
The jet pump is a fluid-dynamic pump. A common jet pump is disclosed as CN 109779912A, and its working principle is that water is fully stored in the pump body, a motor is started to drive a suction impeller to rotate at high speed, the suction impeller drives water flow in the pump body to circulate, a negative pressure vacuum state is formed at a water inlet, air in a pipeline is continuously pumped out under the continuous running of the motor until water at a low position is pumped out by the air, and the water enters into a high-position pump body, so that a self-priming process is completed.
The above scheme has some problems, such as the injection conduit plays an absolute role in the self-priming process, the injection conduit does not play a role after the self-priming is finished, but the injection port continues to inject water flow into the conduit, water enters a negative pressure area from a high pressure area in the water pump, self-circulation is carried out, and as a result, the water collecting effect of the injection pump is reduced.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the efficient self-priming jet pump, after the water pump pumps water, the second valve is closed for circulation, so that energy waste is avoided, and the working efficiency of the suction impeller can be remarkably improved.
The technical scheme adopted for solving the technical problems is as follows: a high-efficiency self-priming jet pump comprises a pump shell;
the pump shell is provided with a first water inlet and a water outlet, the shell walls of the pump shell are respectively provided with a water injection hole communicated with the inner cavity, and the water injection holes are provided with a first valve;
the inner cavity of the pump shell is provided with a flow channel, the side wall of the front end of the flow channel is provided with a second water inlet, the second water inlet is communicated with the first water inlet, the rear end of the flow channel is communicated to the inner cavity of the pump shell through a suction impeller, and the suction impeller is driven by a motor;
the front end of the flow channel is provided with a circulating port communicated with the inner cavity of the pump shell, and the circulating port is provided with a second valve.
When this scheme is used, at first, fill water through the water injection hole to the pump body in, start suction impeller rotation, suction impeller drives the internal water of pump and flows from front to back in the runner, after flowing in the pump body, water reentry the runner from the front end of runner in, and wherein the front end lateral wall of runner is provided with the second water inlet, the liquid that flows at a high speed will form the negative pressure, the water of low will be pumped by the negative pressure and flow to the pump shell inside, when the air of first water inlet is whole or mostly pumped to the pump body in, water just can be pumped smoothly to the delivery port flow. When the pumped water flow can be formed, internal water circulation is not needed at this time, and the second valve is closed for circulation, so that energy waste is avoided, and the working efficiency of the suction impeller can be remarkably improved.
Preferably, the first water inlet is communicated with the second water inlet through a water inlet channel. So as to form a column of water at one end for better extraction of the external water.
Preferably, the second valve comprises a screw rod and a pressing plate, the screw rod is in threaded fit with the pump shell, the inner end of the screw rod is located in the pump shell, the pressing plate is arranged at the inner end of the screw rod corresponding to the circulating port, the outer end of the screw rod is located outside the pump shell, and the handle is arranged at the outer end of the screw rod. The pressure plate can be abutted against the circulation port by rotating the screw rod through the handle so as to block the circulation.
Preferably, a flow guiding mechanism is arranged between the circulation port and the second water inlet, and the flow guiding mechanism guides water from the circulation port to the inside of the flow channel. So that water can more easily flow from the front end to the rear end of the flow channel.
Preferably, the flow guiding mechanism is a conical cylinder, and the inner diameter of one end of the conical cylinder close to the circulating port is larger. Water can be made to flow more easily from the circulation port to the flow passage.
Preferably, the first water inlet is provided with a one-way valve. The reverse outflow of water is avoided.
Preferably, a drain valve is arranged at the bottom of the pump shell. So that the water in the pump housing is drained after the use is finished.
Preferably, the front end of the flow channel is a horn structure, the inner diameter of one side of the horn structure, which is close to the second water inlet, is larger, and the circular diameter from the downstream part of the horn structure to the flow channel is gradually increased. So as to create a venturi effect to create a greater flow rate at the rear end of the flow passage.
The utility model has the beneficial effects that:
after the water pump pumps water, the second valve is closed for circulation, so that energy waste is avoided, and the working efficiency of the suction impeller can be remarkably improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly described, and it is obvious that the drawings in the following description are only one of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
wherein, 1, a pump shell; 2. a flow passage; 3. a suction impeller; 4. a motor; 5. a second water inlet; 6. a first water inlet; 7. a water injection hole; 8. a one-way valve; 9. a circulation port; 10. a diversion mechanism; 11. a screw; 12. a pressing plate; 13 water outlet.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
Examples
As shown in fig. 1, a high-efficiency self-priming jet pump comprises a pump shell 1; the pump shell 1 is provided with a first water inlet 6 and a water outlet 13, the shell walls of the pump shell 1 are respectively provided with a water injection hole 7 communicated with the inner cavity, and the water injection holes 7 are provided with a first valve; the inner cavity of the pump shell 1 is provided with a flow channel 2, the side wall of the front end of the flow channel 2 is provided with a second water inlet 5, the second water inlet 5 is communicated with the first water inlet 6, the rear end of the flow channel 2 is communicated to the inner cavity of the pump shell 1 through a suction impeller 3, and the suction impeller 3 is driven by a motor 4.
When the pump is used, firstly, water is filled into the pump body through the water injection hole 7, the suction impeller 3 is started to rotate, the suction impeller 3 drives water in the pump body to flow from front to back in the flow channel 2, after the water flows into the pump body, the water reenters the flow channel 2 from the front end of the flow channel 2, the side wall of the front end of the flow channel 2 is provided with the second water inlet 5, the liquid flowing at high speed forms negative pressure, the water at the low position is pumped and flows into the pump shell 1 by the negative pressure, and when all or most of air at the first water inlet 6 is pumped into the pump body, the water can be pumped smoothly to the water outlet 13 for flowing.
The first water inlet 6 is communicated with the second water inlet 5 through a water inlet channel. So as to form a column of water at one end for better extraction of the external water.
The front end of the flow channel 2 is provided with a circulation port 9 communicated with the inner cavity of the pump shell 1, and the circulation port 9 is provided with a second valve. When the pumped water flow can be formed, internal water circulation is not needed at this time, and the circulation is closed through the second valve, so that energy waste is avoided, and the working efficiency of the suction impeller 3 is improved.
The second valve comprises a screw 11 and a pressing plate 12, the screw 11 is in threaded fit with the pump shell 1, the inner end of the screw 11 is located inside the pump shell 1, the pressing plate 12 is arranged at the inner end of the screw 11 corresponding to the circulation port 9, the outer end of the screw 11 is located outside the pump shell 1, and a handle is arranged at the outer end of the screw 11. By turning the screw 11 by means of the handle, the pressure plate 12 can be brought into abutment against the circulation port 9 in order to block the circulation.
A diversion mechanism 10 is arranged between the circulation port 9 and the second water inlet 5, and the diversion mechanism 10 diverts water from the circulation port 9 to the inside of the runner 2. So that water can more easily flow from the front end to the rear end of the flow passage 2.
The flow guiding mechanism 10 is a conical cylinder, and the inner diameter of one end of the conical cylinder, which is close to the circulating port 9, is larger. It is possible to make the water flow from the circulation port 9 to the flow passage 2 easier.
The first water inlet 6 is provided with a one-way valve 8. The reverse outflow of water is avoided.
The bottom of the pump shell 1 is provided with a drain valve. So that the water in the pump housing 1 is drained after the end of use.
The front end of the flow channel 2 is of a horn structure, the inner diameter of one side of the horn structure, which is close to the second water inlet 5, is larger, and the diameter of the downstream part of the horn structure from the downstream part to the flow channel 2 is gradually increased. So as to create a venturi effect to create a greater flow rate at the rear end of the flow channel 2.
After the water pump pumps water, the second valve is closed for circulation, so that energy waste is avoided, and the working efficiency of the suction impeller 3 can be remarkably improved.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (8)
1. The high-efficiency self-priming jet pump is characterized by comprising a pump shell (1);
the pump shell (1) is provided with a first water inlet (6) and a water outlet (13), the shell wall of the pump shell (1) is provided with a water injection hole (7) communicated to the inner cavity, and the water injection hole (7) is provided with a first valve;
the inner cavity of the pump shell (1) is provided with a flow channel (2), the side wall of the front end of the flow channel (2) is provided with a second water inlet (5), the second water inlet (5) is communicated with the first water inlet (6), the rear end of the flow channel (2) is communicated to the inner cavity of the pump shell (1) through a suction impeller (3), and the suction impeller (3) is driven by a motor (4);
the front end of the runner (2) is provided with a circulation port (9) communicated with the inner cavity of the pump shell (1), and the circulation port (9) is provided with a second valve.
2. The high efficiency self priming jet pump of claim 1, wherein: the first water inlet (6) is communicated with the second water inlet (5) through a water inlet channel.
3. The high efficiency self priming jet pump of claim 1, wherein: the second valve comprises a screw rod (11) and a pressing plate (12), the screw rod (11) is in threaded fit with the pump shell (1), the inner end of the screw rod (11) is located inside the pump shell (1), the pressing plate (12) is arranged at the inner end of the screw rod (11) corresponding to the circulating port (9), the outer end of the screw rod (11) is located outside the pump shell (1), and a handle is arranged at the outer end of the screw rod (11).
4. The high efficiency self priming jet pump of claim 1, wherein: a flow guiding mechanism (10) is arranged between the circulation port (9) and the second water inlet (5), and the flow guiding mechanism (10) guides water from the circulation port (9) to the inside of the flow channel (2).
5. The high efficiency self priming jet pump of claim 4, wherein: the flow guiding mechanism (10) is a conical cylinder, and the inner diameter of one end of the conical cylinder, which is close to the circulating port (9), is larger.
6. The high efficiency self priming jet pump of claim 4, wherein: the first water inlet (6) is provided with a one-way valve (8).
7. The high efficiency self priming jet pump of claim 1, wherein: the bottom of the pump shell (1) is provided with a drain valve.
8. The high efficiency self priming jet pump of claim 1, wherein: the front end of the runner (2) is of a horn structure, the inner diameter of one side of the horn structure, which is close to the second water inlet (5), is larger, and the diameter of the circle from the downstream part of the horn structure to the runner (2) is gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889750.3U CN220118346U (en) | 2023-04-19 | 2023-04-19 | High-efficiency self-priming jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320889750.3U CN220118346U (en) | 2023-04-19 | 2023-04-19 | High-efficiency self-priming jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118346U true CN220118346U (en) | 2023-12-01 |
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ID=88895020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320889750.3U Active CN220118346U (en) | 2023-04-19 | 2023-04-19 | High-efficiency self-priming jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118346U (en) |
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2023
- 2023-04-19 CN CN202320889750.3U patent/CN220118346U/en active Active
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