CN217604143U - Fuel pump oil supply system - Google Patents

Abstract

The utility model relates to a fuel pump oil feeding system in oil supply technical field, including oil tank, play oil pipe, including frequency conversion oil pump, oil water separator, frequency conversion oil pump oil inlet passes through oil water separator and oil tank oil-out intercommunication, frequency conversion oil pump oil-out intercommunication has the play oil pipe that has the valve, and it is equipped with the oil pressure detector who is used for detecting out oil pipe inner chamber oil pressure by its oil inlet to the position between this valve to go out oil pipe. The utility model discloses owing to adopted the frequency conversion oil pump, when consequently the inside oil pressure of delivery pipe reaches suitable pressure, the inside oil pressure of delivery pipe keeps about 3.0MPa promptly, and the frequency conversion oil pump can stop transport fluid temporarily, has solved among the prior art need the incessant operation of circulating oil pump to lead to serious power consumption extravagant technical problem.

Description

Fuel pump oil supply system

Technical Field

The utility model relates to a fuel feeding technical field especially relates to a fuel pump oil feeding system.

Background

In the thermal power generation process, the fuel oil system is mainly used when a unit starts a boiler and a boiler abnormally operates and needs to inject oil for combustion supporting, an oil pump needs to be operated for pressurizing circulation in the normal operation of the unit so as to keep the fuel oil system to be put into use at any time, and a fuel oil pipeline needs to be pressurized for a long time to operate at about 3.0 MPa.

The running device generally comprises a circulating oil pump communicated with an oil outlet of an oil tank, the oil outlet of the circulating oil pump is simultaneously communicated with an oil outlet pipe with a valve and a circulating pipe with a valve, the oil outlet of the circulating pipe is communicated with an inner cavity of the oil tank, and the circulating pipe is further provided with an oil filter.

This mode of operation has the following drawbacks: 1. the uninterrupted operation of the circulating oil pump causes serious waste of electric energy consumption; 2. high-pressure oil continuously flows in the circulating pipe, so that the circulating pipe is easy to wear, damage and leak, potential safety hazards of oil temperature rise are caused, and particularly the oil temperature rise in summer is more obvious; 3. the oil filter has large load and is easy to damage.

SUMMERY OF THE UTILITY MODEL

The present invention provides a fuel pump oil supply system to solve the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a fuel pump oil feeding system, includes oil tank, goes out oil pipe, includes frequency conversion oil pump, oil-water separator, frequency conversion oil pump oil inlet passes through oil-water separator and oil tank oil-out intercommunication, frequency conversion oil pump oil-out intercommunication has the play oil pipe that has the valve, and the position of going out oil pipe between to this valve by its oil inlet is equipped with the oil pressure detector that is used for detecting out oil pipe inner chamber oil pressure, frequency conversion oil pump overflow mouth intercommunication has the overflow pipe, and the overflow pipe oil-out corresponds the intercommunication with the oil tank inner chamber, and the overflow pipe is equipped with first filter.

Preferably, the oil-water separation device comprises an oil-water separation component and a water storage component, an oil inlet of the oil-water separation component is correspondingly communicated with an oil outlet of the oil tank, the oil outlet of the oil-water separation component is correspondingly communicated with an oil inlet of the variable frequency oil pump, and a water outlet of the oil-water separation component is correspondingly communicated with a water inlet of the water storage component below the oil-water separation component.

Preferably, the water storage assembly comprises a water storage part with a water storage inner cavity, a water inlet of the water storage part is correspondingly communicated with a water outlet of the oil-water separation assembly, a drain pipe with a valve is arranged at the bottom of the water storage part, and a detection device for detecting the water quantity in the inner cavity of the water storage part is arranged in the inner cavity of the water storage part.

Preferably, the detection device is a sensor, and the valve in the drain pipe is an electromagnetic valve.

Preferably, the detection device comprises two water level sensors, and the upper limit and the lower limit of the water level in the inner cavity of the water storage part are respectively provided with one water level sensor.

Preferably, the water storage assembly further comprises a drainage pump, and a water inlet of the drainage pump is correspondingly communicated with a water outlet of the drainage pipe.

Preferably, the oil-water separation component comprises a barrel, an oleophylic hydrophobic membrane component is arranged in an inner cavity of the barrel, an oil inlet and an oil outlet of the oil-water separation component are respectively and correspondingly located on two sides of the oleophylic hydrophobic membrane component, and a water outlet and an oil inlet of the oil-water separation component are located on the same side of the oleophylic hydrophobic membrane component.

Preferably, the oleophylic hydrophobic membrane component is of a cylindrical structure, an oil inlet of the oil-water separation component is correspondingly positioned on the outer side of the oleophylic hydrophobic membrane component, and an oil outlet of the oil-water separation component is correspondingly positioned on the inner side of the oleophylic hydrophobic membrane component.

Preferably, the oil-water separation device further comprises a second filter, and the oil inlet of the oil-water separation device is correspondingly communicated with the oil outlet of the oil tank through the second filter.

Preferably, the oil inlet of the third filter is correspondingly communicated with the oil outlet of the variable frequency oil pump, the oil outlet of the third filter is correspondingly communicated with the oil inlet of the overflow valve, and the oil outlet of the overflow valve is correspondingly communicated with the inner cavity of the oil tank.

The beneficial effects are that:

1. because the variable frequency oil pump is adopted, when the oil pressure in the oil outlet pipe reaches proper pressure, namely the oil pressure in the oil outlet pipe is kept at about 3.0MPa, the variable frequency oil pump can temporarily stop conveying oil, and the technical problem of serious electric energy consumption waste caused by the fact that a circulating oil pump needs to continuously operate in the prior art is solved;

2. because the variable frequency oil pump is adopted, compared with the prior art, the circulating oil way is reduced, and therefore the technical problems that high-pressure oil liquid continuously flows in the circulating pipe in the prior art, the circulating pipe is easy to wear, damage and leakage, the potential safety hazard of oil temperature rise is caused, and the oil temperature rise is more obvious particularly in summer are solved;

3. since the oil pressure and flow rate in the overflow tube are much lower than in the prior art recirculation tube, the first filter load on the overflow tube is much lower than the filter on the prior art recirculation tube.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a prior art structure

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view of the oil-water separation device of the present invention.

The reference numerals are explained below:

1. an oil tank; 2. an oil outlet pipe; 3. a variable frequency oil pump; 4. an oil-water separation device; 41. an oil-water separation component; 411. a barrel; 412. an oleophylic and hydrophobic membrane assembly; 42. a water storage assembly; 421. a water storage member; 422. a drain pipe; 423. a detection device; 424. draining pump; 5. an overflow pipe; 6. a first filter; 7. a second filter; 8. a third filter; 9. an overflow valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the first embodiment, as shown in fig. 2, an oil supply system of a fuel pump includes an oil tank 1, an oil outlet pipe 2, a variable frequency oil pump 3, and an oil-water separation device 4, wherein an oil inlet of the variable frequency oil pump 3 is communicated with an oil outlet of the oil tank 1 through the oil-water separation device 4, an oil outlet of the variable frequency oil pump 3 is communicated with the oil outlet of the variable frequency oil pump 3, specifically, an oil inlet of the oil outlet pipe 2 is communicated with the oil outlet of the variable frequency oil pump 3, an oil pressure detector 21 for detecting oil pressure in an inner cavity of the oil outlet pipe 2 is disposed at a position between the oil inlet and the valve of the oil outlet pipe 2, specifically, the oil pressure detector 21 is used for detecting oil pressure in the inner cavity of the oil outlet pipe 2 corresponding to a position at the front end of the valve, an overflow port of the variable frequency oil pump 3 is communicated with an oil outlet of the variable frequency oil pump 3, an oil outlet of the overflow pipe 5 is correspondingly communicated with an oil inlet of the oil tank 1, and the overflow pipe 5 is provided with a first filter 6, specifically, an oil inlet of the first filter 6 is correspondingly communicated with an oil outlet of the overflow pipe 5;

due to the adoption of the variable frequency oil pump 3, when the oil pressure in the oil outlet pipe 2 reaches a proper pressure, namely the oil pressure in the oil outlet pipe 2 is kept at about 3.0MPa, the variable frequency oil pump 3 can temporarily stop delivering oil, and the technical problem of serious electric energy consumption waste caused by the continuous operation of a circulating oil pump in the prior art is solved; because the variable frequency oil pump 3 is adopted, compared with the prior art, the circulating oil way is reduced, and therefore the technical problems that in the prior art, high-pressure oil liquid continuously flows in a circulating pipe, the circulating pipe is easily abraded, damaged and leaked, the potential safety hazard of oil temperature rise is caused, and the oil temperature rise is more obvious particularly in summer are solved; since the oil pressure and flow rate in the overflow pipe 5 are much lower than those in the circulation pipe of the prior art, the first filter 6 on the overflow pipe 5 is much less loaded than that on the circulation pipe of the prior art.

In the structure, during the use, start frequency conversion oil pump 3, the fluid in the 3 extraction oil tanks of frequency conversion oil pump 1, fluid is through 4 in-process of oil water separator for water in the fluid is separated out, then fluid gets into frequency conversion oil pump 3, most fluid enters into out oil pipe 2 through the 3 oil-outs of frequency conversion oil pump, make the oil pressure in the oil pipe 2 keep about 3.0MPa, unnecessary fluid enters into overflow pipe 5 after through 3 overflow mouths of frequency conversion oil pump, flow back to oil tank 1 through first filter 6.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 3, the oil-water separation device 4 includes an oil-water separation component 41 and a water storage component 42, an oil inlet of the oil-water separation component 41 is correspondingly communicated with an oil outlet of the oil tank 1, an oil outlet of the oil-water separation component 41 is correspondingly communicated with an oil inlet of the variable frequency oil pump 3, a water outlet of the oil-water separation component 41 is correspondingly communicated with a water inlet of the water storage component 42 located below the oil-water separation component, and thus water separated by the oil-water separation component 41 enters the water storage component 42 for temporary storage;

the water storage component 42 comprises a water storage member 421 with a water storage inner cavity, a water inlet of the water storage member 421 is correspondingly communicated with a water outlet of the oil-water separation component 41, a drain pipe 422 with a valve is arranged at the bottom of the water storage member 421, a detection device 423 for detecting the water amount in the inner cavity of the water storage member 421 is arranged in the inner cavity of the water storage member 421, and the water inlet of the water storage member 421 is positioned at the top of the inner cavity thereof as required; the arrangement can detect the water in the inner cavity of the water storage member 421 through the detection device 423, and when the water reaches a certain amount, the valve on the drainage pipe 422 can be opened, so that the water in the inner cavity of the water storage member 421 is drained through the drainage pipe 422;

the detection device 423 is a sensor, a valve in the water drainage pipe 422 is an electromagnetic valve, the sensor is a water level sensor which can move up and down in the inner cavity of the water storage piece 421 as required, for example, the detection end of the sensor moves along with the height of the water level, and the current water level is obtained through the ascending or descending height of the detection end, so that when the detection device 423 detects the water in the inner cavity of the water storage piece 421, when the water reaches a certain amount, the valve on the water drainage pipe 422 is automatically opened, so that the water in the inner cavity of the water storage piece 421 is drained through the water drainage pipe 422, and the function of automatic drainage is realized;

the detection device 423 comprises two water level sensors, wherein the upper limit and the lower limit of the water level in the inner cavity of the water storage member 421 are respectively provided with one water level sensor, so that the upper limit of the water amount detected by the upper detection device 423 can be passed through, the lower detection device 423 can detect the lower limit of the water amount, specifically, when the upper detection device 423 detects the water level, the water drainage is started, and when the lower detection device 423 detects the water level, the water drainage is finished, so that the phenomenon that too much water is drained to cause the oil to be drained through the water drainage pipe 422 during the water drainage can be prevented;

the water storage assembly 42 further comprises a drainage pump 424, a water inlet of the drainage pump 424 is correspondingly communicated with a water outlet of the drainage pipe 422, so that when the variable frequency oil pump 3 is started, the pressure in the inner cavity of the water storage member 421 is reduced due to a certain flow velocity of oil in the oil-water separation device 4, the phenomenon of unsmooth drainage is prevented, and the function of smooth drainage is ensured by the drainage pump 424;

the oil-water separation assembly 41 comprises a cylinder 411, an inner cavity of the cylinder 411 is provided with an oleophylic hydrophobic membrane assembly 412, an oil inlet and an oil outlet of the oil-water separation assembly 41 are respectively and correspondingly positioned at two sides of the oleophylic hydrophobic membrane assembly 412, and a water outlet and an oil inlet of the oil-water separation assembly 41 are positioned at the same side of the oleophylic hydrophobic membrane assembly 412, so that the oil passes through the oleophylic hydrophobic membrane assembly 412, while the water cannot pass through the oleophylic hydrophobic membrane assembly 412, and the water moves downwards to enter the bottom of the inner cavity of the water storage assembly 42 because the density of the water is greater than that of the oil;

the oleophylic and hydrophobic membrane component 412 is of a cylindrical structure, an oil inlet of the oil-water separation component 41 is correspondingly positioned on the outer side of the oleophylic and hydrophobic membrane component 412, an oil outlet of the oil-water separation component 41 is correspondingly positioned on the inner side of the oleophylic and hydrophobic membrane component 412, the oleophylic and hydrophobic membrane component 412 can also be of a plate-shaped structure, the upper end and the lower end of the oleophylic and hydrophobic membrane component 412 are both closed, and an oil outlet is arranged at the closed upper end; the lower end of the oleophilic and hydrophobic membrane component 412 can be open according to requirements, and the open end is in sealing fit with the cylinder 411;

compared with a plate-shaped structure, the cylindrical structure has a larger surface, so that the oil-water separation effect is better.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 2, the oil separator further includes a second filter 7, and the oil inlet of the oil-water separator 4 is correspondingly communicated with the oil outlet of the oil tank 1 through the second filter 7, so that the oil entering the oil-water separator 4 can be filtered through the second filter 7.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 2, the oil-saving device further includes a third filter 8 and an overflow valve 9, an oil inlet of the third filter 8 is correspondingly communicated with an oil outlet of the variable frequency oil pump 3, an oil outlet of the third filter 8 is correspondingly communicated with an oil inlet of the overflow valve 9, and an oil outlet of the overflow valve 9 is correspondingly communicated with an inner cavity of the oil tank 1, so that in an emergency, for example, when the variable frequency oil pump 3 fails and the oil outlet pipe 2 fails, high-pressure oil in the oil outlet pipe 2 flows back to the oil tank 1 through the third filter 8 and the overflow valve 9, thereby preventing a large amount of oil from leaking.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides a fuel pump oil feeding system, includes oil tank (1), goes out oil pipe (2), its characterized in that: including frequency conversion oil pump (3), oil-water separator (4), frequency conversion oil pump (3) oil inlet passes through oil-water separator (4) and oil tank (1) oil-out intercommunication, frequency conversion oil pump (3) oil-out intercommunication has oil pipe (2) that have the valve, and oil pipe (2) are equipped with oil pressure detector (21) that are used for detecting oil pipe (2) inner chamber oil pressure by its oil inlet to the position between this valve, frequency conversion oil pump (3) overflow mouth intercommunication has overflow pipe (5), and overflow pipe (5) oil-out corresponds the intercommunication with oil tank (1) inner chamber, and overflow pipe (5) are equipped with first filter (6).

2. A fuel pump supply system as set forth in claim 1, wherein: the oil-water separation device (4) comprises an oil-water separation component (41) and a water storage component (42), an oil inlet of the oil-water separation component (41) is correspondingly communicated with an oil outlet of the oil tank (1), an oil outlet of the oil-water separation component (41) is correspondingly communicated with an oil inlet of the variable frequency oil pump (3), and a water outlet of the oil-water separation component (41) is correspondingly communicated with a water inlet of the water storage component (42) positioned below the oil-water separation component.

3. The fuel pump feeding system of claim 2, wherein: the water storage component (42) comprises a water storage part (421) with a water storage inner cavity, a water inlet of the water storage part (421) is correspondingly communicated with a water outlet of the oil-water separation component (41), a drain pipe (422) with a valve is arranged at the bottom of the water storage part (421), and a detection device (423) used for detecting the water quantity in the inner cavity of the water storage part (421) is arranged in the inner cavity of the water storage part (421).

4. A fuel pump supply system as set forth in claim 3, wherein: the detection device (423) is a sensor, and the valve in the drain pipe (422) is an electromagnetic valve.

5. The fuel pump supply system of claim 4, wherein: the detection device (423) comprises two water level sensors, and the upper limit and the lower limit of the water level in the inner cavity of the water storage part (421) are respectively provided with one water level sensor.

6. A fuel pump feeding system as set forth in claim 3, wherein: the water storage assembly (42) further comprises a drainage pump (424), and a water inlet of the drainage pump (424) is correspondingly communicated with a water outlet of the drainage pipe (422).

7. A fuel pump supply system as set forth in claim 2, wherein: the oil-water separation component (41) comprises a cylinder body (411), an oleophylic hydrophobic membrane component (412) is arranged in an inner cavity of the cylinder body (411), an oil inlet and an oil outlet of the oil-water separation component (41) are respectively and correspondingly located on two sides of the oleophylic hydrophobic membrane component (412), and a water outlet and an oil inlet of the oil-water separation component (41) are located on the same side of the oleophylic hydrophobic membrane component (412).

8. The fuel pump feeding system of claim 7, wherein: the oleophylic and hydrophobic membrane component (412) is of a cylindrical structure, an oil inlet of the oil-water separation component (41) is correspondingly positioned on the outer side of the oleophylic and hydrophobic membrane component (412), and an oil outlet of the oil-water separation component (41) is correspondingly positioned on the inner side of the oleophylic and hydrophobic membrane component (412).

9. A fuel pump supply system as set forth in claim 1, wherein: the oil-water separator is characterized by further comprising a second filter (7), and an oil inlet of the oil-water separator (4) is correspondingly communicated with an oil outlet of the oil tank (1) through the second filter (7).

10. The fuel pump feeding system of claim 1, wherein: the oil inlet of the third filter (8) is correspondingly communicated with the oil outlet of the variable frequency oil pump (3), the oil outlet of the third filter (8) is correspondingly communicated with the oil inlet of the overflow valve (9), and the oil outlet of the overflow valve (9) is correspondingly communicated with the inner cavity of the oil tank (1).

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