CN215805400U - Self-cooling device for bearing of centrifugal oil supply pump - Google Patents
Self-cooling device for bearing of centrifugal oil supply pump Download PDFInfo
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- CN215805400U CN215805400U CN202122041593.4U CN202122041593U CN215805400U CN 215805400 U CN215805400 U CN 215805400U CN 202122041593 U CN202122041593 U CN 202122041593U CN 215805400 U CN215805400 U CN 215805400U
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Abstract
The utility model discloses a self-cooling device for a centrifugal oil supply pump bearing, which is matched with a centrifugal oil supply pump to be installed, wherein a pump tail cover, a suction inlet, a front end bearing body and a rear end bearing body are matched and installed on the centrifugal oil supply pump; the axial force balance pump comprises an axial force balance pipeline, a first connecting pipe, a second connecting pipe and a communicating pipe, wherein two ends of the axial force balance pipeline are respectively communicated with a suction inlet and a pump tail cover, cooling cavities are respectively formed in a front end bearing body and a rear end bearing body, the rear end of the axial force balance pipeline is communicated with the cooling cavity in the rear end bearing body through the first connecting pipe, the suction inlet is communicated with the cooling cavity in the front end bearing body through the second connecting pipe, and the cooling cavities of the front end bearing body and the rear end bearing body are kept communicated through the communicating pipe. The utility model can give consideration to high-efficiency cooling and reduction of energy consumption of medium conveying, does not need a special cooling medium conveying pipeline, and has the advantages of convenient installation, lower cost and excellent energy-saving and consumption-reducing effects.
Description
Technical Field
The utility model relates to the technical field of oil supply systems, in particular to a self-cooling device for a bearing of a centrifugal oil supply pump.
Background
At present, large-scale thermal power plants in China are all provided with fuel oil storehouses and matched independent oil supply systems to ensure that a boiler is ignited for combustion supporting when starting or the combustion working condition in the boiler is unstable, the fuel oil storehouses are all arranged at places deviating from production, life, office and the like in a plant area according to the difference of the installed capacity scales of the power plants and the danger particularity of the fuel oil area, and the oil supply pumps of the oil supply systems are multi-stage centrifugal oil supply pumps for ensuring the safety, stability and normal output of the fuel oil systems.
Fig. 1 to 3 in the drawings of the specification are a front view, a top view and a right view of a conventional centrifugal oil feed pump, and as shown in fig. 1 to 3, the conventional centrifugal oil feed pump 1 is provided with an axial force balance pipeline 2 communicating an inner cavity of a tail cover 101 and a suction port 102, and in the use process, a medium with a flow rate of about 2% of that of the centrifugal oil feed pump 1 is continuously delivered through the axial force balance pipeline 2 and directly flows back to the suction port 102 of the centrifugal oil feed pump 1, so that the balance of the axial force is realized. Half of the cooling of the bearings at the two ends of the centrifugal oil supply pump 1 is cooled by a water cooling mode, a cooling medium enters the cooling cavities of the front end bearing body 103 and the rear end bearing body 104 through the cooling inlet pipe 9 to perform heat exchange and cooling on the front end bearing body 103 and the rear end bearing body 104, and then is sent away through the cooling outlet pipe 10 to perform heat dissipation and cooling on the cooling medium, so that heat generated when the bearings rotate at a high speed can be taken away, and the cooling of the bearings is realized.
Although the cooling structure has a good effect, the cooling structure is complex in installation, a user needs to connect a special cooling medium conveying pipeline to convey a cooling medium with a low temperature to the centrifugal oil supply pump, and the cooling medium which is subjected to heat exchange and is heated is output and cooled, so that the cost is high, and the economy is poor.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide the self-cooling device for the bearing of the centrifugal oil supply pump, which can realize high-efficiency cooling and reduce the energy consumption for conveying a medium, does not need a special cooling medium conveying pipeline, and has the advantages of convenience in installation, lower cost and excellent energy-saving and consumption-reducing effects.
The technical scheme adopted by the utility model for realizing the purpose is as follows: a self-cooling device for a centrifugal oil supply pump bearing is matched with a centrifugal oil supply pump, a pump tail cover, a suction inlet, a front end bearing body and a rear end bearing body are matched and arranged on the centrifugal oil supply pump, and the self-cooling device comprises an axial force balance pipeline, a first connecting pipe, a second connecting pipe and a communicating pipe,
the two ends of the axial force balance pipeline are respectively communicated with the suction inlet and the pump tail cover, cooling cavities are formed in the front end bearing body and the rear end bearing body, the rear end of the axial force balance pipeline is communicated with the cooling cavity in the rear end bearing body through a first connecting pipe, the suction inlet is communicated with the cooling cavity in the front end bearing body through a second connecting pipe, and the cooling cavities of the front end bearing body and the rear end bearing body are communicated with each other through the communicating pipe.
The centrifugal oil supply pump is also provided with a discharge port for discharging a conveying medium in a matching manner, the discharge port is communicated with the inner cavity of the pump tail cover, and one end of the axial force balance pipeline penetrates through the pump tail cover and is communicated with the inner cavity of the pump tail cover.
The cooling cavity in the front end bearing body and the cooling cavity in the rear end bearing body are both provided with a medium inlet and a medium outlet which are communicated with the external environment, the medium inlet on the rear end bearing body is communicated with the axial force balancing pipeline through a first connecting pipe, the medium outlet on the rear end bearing body is communicated with one end of a communicating pipe, the other end of the communicating pipe is communicated with the medium inlet on the front end bearing body, and the medium outlet on the front end bearing body is communicated with the suction inlet through a second connecting pipe.
As a further optimized structure of the present invention, the axial force balance pipeline is communicated with the communication pipe through a third connection pipe, the first electronic switch valve and the second electronic switch valve are respectively installed on the communication pipe and the third connection pipe in a matching manner, and the first electronic switch valve is installed on the upstream side of the connection position of the communication pipe and the third connection pipe.
In order to improve the heat dissipation effect of the centrifugal oil supply pump in different working states, the optimized structure is further described, a rotation speed sensor is mounted on a rotation shaft of the centrifugal oil supply pump in a matched manner, a first temperature sensor and a second temperature sensor are mounted on a front end bearing body and a rear end bearing body respectively, and the first electronic switch valve, the second electronic switch valve, the rotation speed sensor, the first temperature sensor and the second temperature sensor are all connected to the single chip microcomputer in a signal mode.
The utility model has the beneficial effects that: a part of oil medium pressurized by the centrifugal oil supply pump flows back to the suction inlet through the axial force balancing pipeline, and the requirement of pressure relief when the axial force is balanced is met; meanwhile, part of oil medium in the axial force balance pipeline can enter a cooling cavity in the front end bearing body and the rear end bearing body, and heat generated on the bearing is continuously taken away through the oil medium, so that the purpose of self-cooling of the bearing is achieved. Different self-cooling modes are adopted in different working conditions of the centrifugal oil supply pump, and cooling and heat dissipation are carried out in a synchronous cooling or sequential cooling mode through the rear end bearing body and the front end bearing body. The centrifugal oil supply pump has the advantages of being convenient to install, low in cost and excellent in energy-saving and consumption-reducing effects, and the oil medium conveyed by the centrifugal oil supply pump is cooled in the working process of the centrifugal oil supply pump without a special cooling medium conveying pipeline.
Drawings
FIG. 1 is a front view of a prior art centrifugal feed pump;
FIG. 2 is a top view of a prior art centrifugal oil supply pump;
FIG. 3 is a right side view of a prior art centrifugal feed pump;
FIG. 4 is a front view of the present invention installed on a centrifugal feed pump;
FIG. 5 is a top view of the centrifugal type fuel feed pump of the present invention installed thereon;
FIG. 6 is a right side view of the installation of the present invention on a centrifugal feed pump;
fig. 7 is a front view of the present invention after further optimization.
In the figure: the system comprises a centrifugal oil supply pump 1, a pump tail cover 101, a suction inlet 102, a front end bearing body 103, a rear end bearing body 104, a discharge outlet 105, an axial force balance pipeline 2, a first connecting pipe 3, a second connecting pipe 4, a communicating pipe 5, a third connecting pipe 6, a first electronic switch valve 7, a second electronic switch valve 8, a cooling inlet pipe 9 and a cooling outlet pipe 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 4-7, a self-cooling device for bearings of a centrifugal oil supply pump is installed in a matching manner with a centrifugal oil supply pump 1, the centrifugal oil supply pump 1 is installed with a pump tail cover 101, a suction inlet 102, a front end bearing body 103 and a rear end bearing body 104 in a matching manner, and comprises an axial force balance pipeline 2, a first connecting pipe 3, a second connecting pipe 4 and a communicating pipe 5,
the two ends of the axial force balance pipeline 2 are respectively communicated with the suction inlet 102 and the pump tail cover 101, cooling cavities are respectively formed in the front end bearing body 103 and the rear end bearing body 104, the rear end of the axial force balance pipeline 2 is communicated with the cooling cavity in the rear end bearing body 104 through the first connecting pipe 3, the suction inlet 102 is communicated with the cooling cavity in the front end bearing body 103 through the second connecting pipe 4, and the cooling cavities of the front end bearing body 103 and the rear end bearing body 104 are communicated through the communicating pipe 5.
In the utility model, the centrifugal oil supply pump 1 is also provided with a discharge port 105 for discharging a conveying medium in a matching manner, an oil supply pipeline is arranged in a matching manner with the suction port 102, oil in the oil supply pipeline is pressurized and conveyed through the centrifugal oil supply pump 1, the oil entering from the suction port 102 is pressurized by the centrifugal oil supply pump 1 and then is output from the discharge port 105, the discharge port 105 is communicated with an inner cavity of the pump tail cover 101, one end of the axial force balance pipeline 2 penetrates through the pump tail cover 101 and is communicated with the inner cavity of the pump tail cover 101, and the oil flowing into the axial force balance pipeline 2 is ensured to have higher pressure.
Front end bearing body 103, the medium import that is linked together with external environment has all been seted up to the cooling chamber in the rear end bearing body 104, the medium export, the medium import on the rear end bearing body 104 is linked together with axial force balance pipeline 2 through first connecting pipe 3, and the medium export on the rear end bearing body 104 is linked together with the one end of communicating pipe 5, the other end of communicating pipe 5 is linked together with the medium import on the front end bearing body 103, the medium export on the front end bearing body 103 is linked together with sunction inlet 102 through second connecting pipe 4, by last, can guarantee first connecting pipe 3, second connecting pipe 4, communicating pipe 5 and front end bearing body 103, rear end bearing body 104 is stably connected.
As a further optimized structure of the present invention, the axial force balance pipeline 2 is communicated with the communicating pipe 5 through a third connecting pipe 6, the first electronic switch valve 7 and the second electronic switch valve 8 are respectively installed on the communicating pipe 5 and the third connecting pipe 6 in a matching manner, and the first electronic switch valve 7 is installed on the upstream side of the connection position of the communicating pipe 5 and the third connecting pipe 6. In order to improve the heat dissipation effect of the centrifugal oil supply pump 1 in different working states, the above optimized structure is further described, a rotation speed sensor is mounted on the rotation shaft of the centrifugal oil supply pump 1 in a matching manner, a first temperature sensor and a second temperature sensor are mounted on the front end bearing body 103 and the rear end bearing body 104 respectively, and the first electronic switch valve 7, the second electronic switch valve 8, the rotation speed sensor, the first temperature sensor and the second temperature sensor are all connected to the single chip microcomputer through signals.
When the rotation speed sensor detects that the rotation speed of the rotating shaft is higher than a set value, and the first temperature sensor and the second temperature sensor detect that the temperatures of the front-end bearing body 103 and the rear-end bearing body 104 are higher than the set value, the first electronic switch valve 7 is closed, and the second electronic switch valve 8 is opened, the conveying medium in the axial force balance pipeline 2 can simultaneously flow into the front-end bearing body 103 and the rear-end bearing body 104, and synchronously cool and dissipate heat to the front-end bearing body and the rear-end bearing body, the working state is suitable for the condition that the output power of the centrifugal oil supply pump 1 is large, and under the condition that the rotation speed of the rotating shaft installed in the front-end bearing body 103 and the rear-end bearing body 104 is large, the oil medium required in the axial force balance pipeline 2 is increased at the same time, and the conveying of the oil medium is slightly influenced.
When the rotation speed sensor detects that the rotation speed of the rotating shaft is lower than a set value, and the first temperature sensor and the second temperature sensor detect that the temperatures of the front end bearing body 103 and the rear end bearing body 104 are lower than the set value, the first electronic switch valve 7 is opened, and the second electronic switch valve 8 is closed, the conveying medium in the axial force balance pipeline 2 sequentially flows through the rear end bearing body 104 and the front end bearing body 103, and sequentially cools and dissipates the heat of the rear end bearing body 104 and the front end bearing body 103.
The working principle of the utility model is as follows: when normal-temperature oil medium is conveyed, a part of oil medium pressurized by the centrifugal oil supply pump 1 flows back to the suction inlet 102 through the axial force balance pipeline 2, and the requirement of pressure relief when the axial force is balanced is firstly ensured; meanwhile, part of the oil medium in the axial force balance pipeline 2 can enter the cooling cavity centered by the front end bearing body 103 and the rear end bearing body 104 and flow back to the suction port 102 of the centrifugal oil supply pump 1, and the oil medium continuously flows through each bearing body to continuously take away heat generated on the bearing, so that the purpose of self-cooling of the bearing is achieved. And in the face of different working conditions of the centrifugal oil supply pump 1, different self-cooling modes are adopted, and cooling and heat dissipation are carried out in a synchronous cooling or sequential cooling mode through the rear-end bearing body 104 and the front-end bearing body 103. Can give consideration to high-efficient cooling and reduce the energy consumption of medium transportation.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a centrifugal fuel feed pump bearing is from cooling device, with the supporting installation of centrifugal fuel feed pump (1), supporting pump tail-hood (101), sunction inlet (102), front end bearing body (103), rear end bearing body (104) of installing on centrifugal fuel feed pump (1), its characterized in that: comprises an axial force balance pipeline (2), a first connecting pipe (3), a second connecting pipe (4) and a communicating pipe (5),
the two ends of the axial force balance pipeline (2) are respectively communicated with the suction inlet (102) and the pump tail cover (101), cooling cavities are formed in the front end bearing body (103) and the rear end bearing body (104), the rear end of the axial force balance pipeline (2) is communicated with the cooling cavity in the rear end bearing body (104) through a first connecting pipe (3), the suction inlet (102) is communicated with the cooling cavity in the front end bearing body (103) through a second connecting pipe (4), and the cooling cavities of the front end bearing body (103) and the rear end bearing body (104) are communicated with each other through the communicating pipe (5).
2. A centrifugal feed pump bearing self-cooling apparatus as claimed in claim 1, wherein: the centrifugal oil supply pump (1) is further provided with a discharge port (105) used for discharging a conveying medium in a matched mode, the discharge port (105) is communicated with an inner cavity of the pump tail cover (101), and one end of the axial force balance pipeline (2) penetrates through the pump tail cover (101) and is communicated with the inner cavity of the pump tail cover (101).
3. A centrifugal feed pump bearing self-cooling apparatus as claimed in claim 1, wherein: the cooling cavity in the front end bearing body (103) and the rear end bearing body (104) is provided with a medium inlet and a medium outlet which are communicated with the external environment, the medium inlet on the rear end bearing body (104) is communicated with the axial force balance pipeline (2) through a first connecting pipe (3), the medium outlet on the rear end bearing body (104) is communicated with one end of the communicating pipe (5), the other end of the communicating pipe (5) is communicated with the medium inlet on the front end bearing body (103), and the medium outlet on the front end bearing body (103) is communicated with the suction inlet (102) through a second connecting pipe (4).
4. A centrifugal feed pump bearing self-cooling apparatus as claimed in claim 1, wherein: axial force balance pipeline (2) are linked together through third connecting pipe (6) with communicating pipe (5), supporting first electronic switch valve (7), second electronic switch valve (8) of installing respectively on communicating pipe (5), third connecting pipe (6), and the upper reaches side at communicating pipe (5) and third connecting pipe (6) junction is installed in first electronic switch valve (7).
5. A centrifugal feed pump bearing self-cooling device as claimed in claim 4, wherein: a rotating speed sensor is installed on a rotating shaft of the centrifugal oil supply pump (1) in a matched mode, a first temperature sensor and a second temperature sensor are installed on a front end bearing body (103) and a rear end bearing body (104) respectively, and a first electronic switch valve (7), a second electronic switch valve (8), the rotating speed sensor, the first temperature sensor and the second temperature sensor are connected to a single chip microcomputer in a signal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122041593.4U CN215805400U (en) | 2021-08-27 | 2021-08-27 | Self-cooling device for bearing of centrifugal oil supply pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122041593.4U CN215805400U (en) | 2021-08-27 | 2021-08-27 | Self-cooling device for bearing of centrifugal oil supply pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215805400U true CN215805400U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122041593.4U Active CN215805400U (en) | 2021-08-27 | 2021-08-27 | Self-cooling device for bearing of centrifugal oil supply pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215805400U (en) |
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2021
- 2021-08-27 CN CN202122041593.4U patent/CN215805400U/en active Active
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