阅读说明：本技术 三联偏心滑片输油泵 (Triple eccentric sliding-vane oil transfer pump ) 是由 颜景义 于 2021-07-15 设计创作，主要内容包括：本发明为三联偏心滑片输油泵,涉及油泵领域。包括径向式泵体1,泵体1内位于主轴2上设有两组隔板5,通过两组隔板5将泵体1分隔出三个泵室,隔板5与主轴2之间设有密封结构以阻断三个泵室的液体互通；还包括吸排油泵腔,吸排油泵腔为分别设置在三个泵室内的三组,三组吸排油泵腔在泵体1内进行吸排油工作。设计结构为泵体通过两组隔板分隔出三个泵室容纳三组吸排油泵腔在泵体内进行吸排油工作,三室共用一个泵体,同轴三泵腔同时完成吸排工作过程,极大的增加了泵的容积效率,又有效的缩小了泵的体积。通过密封结构有效阻断三个泵室的液体互通,又避免因主轴悬点过长产生的径向跳动故障,提高了泵运行的稳定性使密封更为牢靠。(The invention discloses a triple eccentric sliding-vane oil transfer pump, and relates to the field of oil pumps. The radial type pump comprises a radial type pump body 1, wherein two groups of partition plates 5 are arranged on a main shaft 2 in the pump body 1, the pump body 1 is divided into three pump chambers by the two groups of partition plates 5, and a sealing structure is arranged between the partition plates 5 and the main shaft 2 to block the liquid intercommunication of the three pump chambers; the oil suction and discharge pump is characterized by further comprising oil suction and discharge pump cavities, wherein the oil suction and discharge pump cavities are three groups which are respectively arranged in the three pump chambers, and the oil suction and discharge pump cavities of the three groups perform oil suction and discharge work in the pump body 1. The design structure is that the pump body separates three pump chambers through two sets of baffles and holds three groups of oil suction and discharge pump chambers to carry out oil suction and discharge work in the pump body, three chambers share one pump body, the oil suction and discharge work process is completed simultaneously through the coaxial three pump chambers, the volume efficiency of the pump is greatly increased, and the volume of the pump is effectively reduced. The liquid intercommunication of the three pump chambers is effectively blocked by the sealing structure, the radial run-out fault caused by overlong spindle suspension points is avoided, and the running stability of the pump is improved, so that the sealing is firmer.)

1. The triple eccentric sliding vane oil transfer pump comprises a radial pump body (1), wherein a main shaft (2), a pump body discharge port (3) and a pump body suction port (4) are arranged in the pump body (1), and is characterized in that two groups of partition plates (5) are arranged on the main shaft (2) in the pump body (1), the pump body (1) is divided into three pump chambers through the two groups of partition plates (5), and a sealing structure is arranged between each partition plate (5) and the main shaft (2) to block the liquid intercommunication of the three pump chambers;

still including inhaling the oil extraction pump chamber, it is three groups in three pump chamber to inhale the oil extraction pump chamber for setting up respectively, three groups it is in to inhale the oil extraction pump chamber inhale oil extraction work in the pump body (1).

2. The triple eccentric sliding-vane fuel pump according to claim 1, wherein the three sets of suction and discharge oil pump chambers are a first pump chamber (6), a second pump chamber (7) and a third pump chamber (8), respectively.

3. The triple eccentric sliding vane fuel pump according to claim 2, wherein each of the three sets of oil suction and discharge pump chambers comprises a stator (9), a rotor (10), vanes (11) telescopically sliding on the rotor (10), and an anti-collision driving structure arranged on the rotor (10), and the anti-collision driving structure is used for driving the vanes (11) to make telescopic reciprocating motion on the rotor (10) so as to suck liquid medium into the pump chamber from a suction side, compress the liquid medium through the pump chamber and then merge the liquid medium into a discharge side.

4. The triple eccentric sliding-vane fuel delivery pump according to claim 3, wherein the suction and discharge holes of the three stators (9) in the first pump chamber (6), the second pump chamber (7) and the third pump chamber (8) in the three sets of suction and discharge pump chambers respectively form an angle of 120 degrees corresponding to the suction and discharge passage of the pump body (1).

5. The triple eccentric vane fuel pump of claim 3, wherein the anti-collision drive structure comprises a drive ring (12);

two end faces on the rotor (10) are grooves (13) for allowing the driving ring (12) to run.

6. The triple eccentric sliding vane fuel pump according to claim 1, wherein the sealing structure comprises a sealing sleeve (14) disposed in an inner hole of the partition plate (5);

the sealing sleeve (14) is located between the partition plate (5) and the main shaft (2).

7. The triple eccentric sliding-vane fuel delivery pump according to claim 1, further comprising two splitter plates (15), wherein the three oil discharge outlets on the discharge side of the pump body (1) are separated by the two splitter plates (15) from the high-pressure medium discharged from the three pump chambers.

Technical Field

The invention relates to the technical field of oil pumps, in particular to a triple eccentric sliding-vane oil delivery pump.

Background

The oil pump is mainly applied to the petrochemical industry, and can meet the requirements of conveying high-viscosity and mixed conveying engineering containing particle impurities and oil, water and steam media to research and develop a novel pump product.

In the prior art, chinese patent discloses a utility model patent with the patent name of a duplex eccentric pump, and the patent number thereof is CN201420592478.3, and relates to an oil pump, which is mainly used for the duplex eccentric pump for conveying high-viscosity super heavy oil medium on the ground of an oil field, and is particularly suitable for the mixed conveying of oil gas and oil water. The central line of the outlet of the pump body passes through the axis of the rotor spindle, and the overflowing slotted hole of the wear-resistant liner is an inclined plane or a cambered surface at the outlet of the pump body. The center of the outlet of the pump body passes through the axis of the rotor spindle, so that the pump is convenient to install and disassemble on site, the overflowing space of the oil discharging side of the pump body is effectively enlarged, and the defect of unsmooth oil discharging is fundamentally overcome. The overflow slot hole of the wear-resistant liner is an inclined plane or a cambered surface at the outlet of the pump body, so that liquid can be smoothly discharged, no vortex is generated, noise is avoided, and the structure is more reasonable.

However, in the above patent, in order to complete the suction and discharge working process simultaneously with the coaxial dual pump chambers, the oil suction and discharge efficiency is low, the volumetric efficiency of the pump is low, and the pump efficiency is reduced because the contact position of the shunting sleeve and the pump shaft is affected by the liquid intercommunication between the left and right pump chambers due to the overlarge gap. Meanwhile, the alloy steel material of the original blade generates sparks due to abrasion in operation and impact between the blade and the inner diameter of the stator, so that the explosion accident is caused.

Disclosure of Invention

The invention aims to solve the technical problems and provides a triple eccentric sliding-vane oil transfer pump.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the triple eccentric sliding vane oil transfer pump comprises a radial pump body, wherein a main shaft, a pump body discharge port and a pump body suction port are arranged in the pump body, two groups of partition plates are arranged on the main shaft in the pump body, the pump body is divided into three pump chambers through the two groups of partition plates, and a sealing structure is arranged between each partition plate and the main shaft to block the liquid intercommunication of the three pump chambers;

still including inhaling the oil extraction pump chamber, it is three groups in three pump chamber to inhale the oil extraction pump chamber for setting up respectively, and three groups it is in to inhale the oil extraction pump chamber inhales oil extraction work in the pump body.

Preferably, the three groups of suction and discharge oil pump chambers are respectively a first pump chamber, a second pump chamber and a third pump chamber.

Preferably, the three sets of in the oil suction and discharge pump chamber every group the oil suction and discharge pump chamber all includes stator, rotor, flexible slip in blade on the rotor and setting up be in crashproof drive structure on the rotor, crashproof drive structure is used for driving the blade is in make flexible reciprocating motion on the rotor is in order to inhale the pump chamber with liquid medium by the suction side, through pump chamber compression rejoin discharge side.

Preferably, the three suction and discharge holes of the stators in the three groups of the first pump cavity, the second pump cavity and the third pump cavity respectively form an angle of 120 degrees corresponding to the suction and discharge channel of the pump body.

Preferably, the impact resistant drive structure comprises a drive ring;

two end faces on the rotor are grooves for allowing the driving ring to run.

Preferably, the sealing structure comprises a sealing sleeve arranged in the inner hole of the partition plate;

the seal sleeve is located between the partition plate and the main shaft.

Preferably, the oil pump further comprises two splitter plates, and the three oil discharge outlets on the discharge side of the pump body are separated by the two splitter plates to separate high-pressure media discharged from the three pump chambers.

The invention has the following beneficial effects:

the triple eccentric sliding vane oil transfer pump is designed in a structure that a pump body is divided into three pump chambers through two groups of partition plates, three groups of oil suction and discharge pump chambers are accommodated in the pump body to perform oil suction and discharge work, three chambers share one pump body, and the oil suction and discharge work process is completed simultaneously by coaxial three pump chambers, so that the volumetric efficiency of the pump is greatly increased, and the volume of the pump is effectively reduced. The liquid intercommunication of the three pump chambers is effectively blocked by the sealing structure, the radial run-out fault caused by overlong spindle suspension points is avoided, and the running stability of the pump is improved, so that the sealing is firmer.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of a triple eccentric sliding vane oil transfer pump of the present invention;

FIG. 2 is a schematic diagram of the distribution of suction holes and discharge holes of a first pump chamber of the triple eccentric sliding-vane fuel delivery pump according to the present invention;

FIG. 3 is a schematic diagram of the distribution of suction holes and discharge holes of the second pump chamber of the triple eccentric sliding-vane fuel delivery pump according to the present invention;

fig. 4 is a schematic diagram of the distribution of suction and discharge holes of a third pump chamber of the triple eccentric sliding-vane fuel delivery pump and a structural schematic diagram of an anti-collision driving structure;

fig. 5 is a sectional view of a suction and discharge pump chamber of the triple eccentric sliding-vane fuel pump of the present invention.

The reference numerals in the figures denote:

1. a pump body; 2. a main shaft; 3. a pump body discharge port; 4. a pump body suction inlet; 5. a partition plate; 6. a first pump chamber; 7. a second pump chamber; 8. a third pump chamber; 9. a stator; 10. a rotor; 11. a blade; 12. a drive ring; 13. a groove; 14. sealing sleeves; 15. a splitter plate.

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. 1-5, the triple eccentric sliding vane oil transfer pump includes a radial pump body 1, a main shaft 2, a pump body outlet 3 and a pump body inlet 4 are arranged in the pump body 1, two groups of partition plates 5 are arranged on the main shaft 2 in the pump body 1, the pump body 1 is divided into three pump chambers by the two groups of partition plates 5, and a sealing structure is arranged between the partition plates 5 and the main shaft 2 to block the liquid communication of the three pump chambers;

the oil suction and discharge pump is characterized by further comprising oil suction and discharge pump cavities, wherein the oil suction and discharge pump cavities are three groups which are respectively arranged in the three pump chambers, and the oil suction and discharge pump cavities of the three groups perform oil suction and discharge work in the pump body 1.

Specifically, the pump design structure in the device is that the pump body 1 is divided into three pump chambers through two groups of partition plates 5 to accommodate three groups of oil suction and discharge pump chambers to perform oil suction and discharge work in the pump body 1, three chambers share one pump body, and the coaxial three pump chambers complete the oil suction and discharge work process simultaneously, so that the volumetric efficiency of the pump is greatly increased, and the volume of the pump is effectively reduced. The liquid intercommunication of the three pump chambers is effectively blocked by the sealing structure, the radial run-out fault caused by overlong spindle suspension points is avoided, and the running stability of the pump is improved, so that the sealing is firmer.

Further, the three groups of suction and discharge oil pump chambers are respectively a first pump chamber 6, a second pump chamber 7 and a third pump chamber 8.

Specifically, the three pump cavities of the first pump cavity 6, the second pump cavity 7 and the third pump cavity 8 are respectively arranged in the three pump cavities separated by the two groups of partition plates 5, the three chambers share one pump body, and the suction and discharge working processes are simultaneously completed by the coaxial three pump cavities, so that the volumetric efficiency of the pump is greatly increased, and the volume of the pump is effectively reduced.

Furthermore, each of the three sets of oil suction and discharge pump chambers includes a stator 9, a rotor 10, blades 11 sliding telescopically on the rotor 10, and an anti-collision driving structure arranged on the rotor 10, wherein the anti-collision driving structure is used for driving the blades 11 to do telescopic reciprocating motion on the rotor 10 so as to suck liquid media into the pump chambers from the suction side, compress the liquid media through the pump chambers, and then converge the liquid media into the discharge side.

Specifically, the blades 11 are driven to slide on the rotor 10 through the matching between the anti-collision driving structure and the blades 11, so that the wear resistance of the blades 11 is improved, and the system explosion accidents caused by sparks generated by high-speed friction and collision of the blades are avoided.

Furthermore, the suction and discharge holes of the three stators 9 in the first pump chamber 6, the second pump chamber 7 and the third pump chamber 8 in the three groups of suction and discharge pump chambers respectively form an angle of 120 degrees corresponding to the suction and discharge channel of the pump body 1.

Specifically, the suction holes of the three stators 9 are respectively formed at an angle of 120 degrees and correspond to the suction channel of the pump body 1, so that the balanced operation of the working force points of the three pump cavities can be effectively ensured. The working noise and the working vibration of the product are greatly eliminated. In particular, the three working chambers are divided into three suction and discharge flow passage channels with different positions, thereby avoiding the phenomena of flow competition and vortex caused by uneven flow and pressure. The structure is more reasonable.

Further, the anti-collision drive structure includes a drive ring 12;

the two end faces on the rotor 10 are grooves 13 for allowing the driving ring 12 to run.

Specifically, the blades 11 are driven to slide on the rotor 10 by matching between the driving ring 12 and the blades 11 in the anti-collision driving structure, that is, the blades 11 on the rotor 10 are driven to make reciprocating telescopic motion, the driving ring 12 drives the blades 11 to make reciprocating motion on the rotor 10 so as to suck a liquid medium into a pump cavity from a suction side, compress the liquid medium through the pump cavity and then converge the liquid medium into an oil passing channel on a discharge side to be conveyed to a pipeline, so that the wear resistance of the blades 11 can be improved, and the explosion accident of the system caused by sparks generated by the blades 11 due to high-speed friction and collision can be avoided.

Further, the sealing structure includes a sealing sleeve 14 disposed in the inner hole of the partition 5;

a gland 14 is located between the diaphragm 5 and the main shaft 2.

In particular, the sealing sleeve 14 in the sealing structure prevents the three pump cavities from generating internal leakage due to the fluid communication to influence the pump efficiency.

Furthermore, the oil pump also comprises two splitter plates 15, and three oil discharge outlets on the discharge side of the pump body 1 are separated by the two splitter plates 15 to separate high-pressure media discharged from three pump cavities.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.