阅读说明：本技术 一种集中供油系统 (Centralized oil supply system ) 是由 刘广田 赵子键 平恩顺 姜勇 卢青 李卫东 李翔飞 石松 于 2019-09-29 设计创作，主要内容包括：本发明公开了一种集中供油系统,包括储油罐、输送泵系统、回油泵、电控柜和供油系统,供油系统并联设置若干组,每组均包括进油支路、内燃机、燃油箱和回油支路,进油支路上设置有阀门和压力变送器,储油罐连接输送泵系统,输送泵系统通过管路与每个进油支路连通,回油泵通过管路与每个回油支路连通,回油泵与储油罐连通,输送泵系统、回油泵、阀门和压力变送器分别与电控柜电连接。本发明的集中供油系统高度智能化、全自动恒压供油,可随时根据现场要求,实现单台以及多台柴油机恒压供油,未使用完的柴油还能回流到储油罐,还具有对储油罐的油液位实时监测、低液位报警等不同权限多用户操作等特点,安全可靠,省时省力。(The invention discloses a centralized oil supply system which comprises an oil storage tank, a conveying pump system, an oil return pump, an electric control cabinet and an oil supply system, wherein the oil supply system is connected in parallel with a plurality of groups, each group comprises an oil inlet branch, an internal combustion engine, a fuel tank and an oil return branch, a valve and a pressure transmitter are arranged on the oil inlet branch, the oil storage tank is connected with the conveying pump system, the conveying pump system is communicated with each oil inlet branch through a pipeline, the oil return pump is communicated with each oil return branch through a pipeline, the oil return pump is communicated with the oil storage tank, and the conveying pump system, the oil return pump, the valve and the. The centralized oil supply system is highly intelligent and full-automatic in constant-pressure oil supply, can realize constant-pressure oil supply of a single diesel engine or a plurality of diesel engines at any time according to field requirements, can return unused diesel oil to the oil storage tank, has the characteristics of real-time monitoring of the oil level of the oil storage tank, multi-user operation with different authorities such as low-level alarm and the like, and is safe, reliable, time-saving and labor-saving.)

1. A centralized oil supply system is characterized in that: the oil supply system is provided with a plurality of groups in parallel, each group of oil supply system comprises an oil inlet branch, an internal combustion engine, a fuel tank and an oil return branch, the oil inlet branch is provided with a valve and a pressure transmitter, the oil inlet branch is respectively communicated with the oil delivery ports of the internal combustion engine and the fuel tank, the oil return branch is respectively communicated with the oil return ports of the internal combustion engine and the fuel tank, the oil storage tank is connected with the conveying pump system, the conveying pump system is communicated with each oil inlet branch through a pipeline, the oil return pump is communicated with each oil return branch through a pipeline, the oil return pump is communicated with the oil storage tank, the oil storage tank is provided with an oil filling port, and the conveying pump system, the oil return pump, the valve and the pressure transmitter are respectively electrically connected with the electric control cabinet.

2. The centralized oil supply system according to claim 1, wherein: the oil inlet branch and the oil return branch are respectively provided with a flow sensor, a miniature pressure transmitter, a one-way valve and an electromagnetic valve, and the oil inlet branch is also provided with an overflow valve and a pressure reducing valve.

3. The centralized oil supply system according to claim 1, wherein: the oil inlet branch and the oil return branch are communicated through an electromagnetic valve.

4. The centralized oil supply system according to claim 1, wherein: the oil delivery ports of the internal combustion engine and the fuel tank are communicated with the oil inlet branch through an electric three-way valve, the oil return ports of the internal combustion engine and the fuel tank are communicated with the oil return branch through an electric three-way valve, and the two electric three-way valves are electrically connected with the electric control cabinet.

5. The centralized oil supply system according to claim 1, wherein: the oil storage tank is connected the delivery pump system includes the delivery pump, set up filter and ball valve on the oil pipe that advances of delivery pump, set up check valve and ball valve on the play oil pipe of delivery pump, set up the check valve on the time oil pipe of delivery pump, advance oil pipe with time oil pipe respectively with the oil storage tank intercommunication, go out oil pipe with the oil feed branch road intercommunication.

6. The centralized oil supply system according to claim 5, wherein: and a high-precision filter is arranged on a pipeline for communicating the delivery pump with the oil storage tank.

7. The centralized oil supply system according to claim 5, wherein: the conveying pump system is connected in parallel and provided with two groups, and any one group of the conveying pump system is a standby conveying pump system.

8. The centralized oil supply system according to claim 5, wherein: an energy accumulator, a ball valve and a miniature pressure transmitter are sequentially arranged on a pipeline communicated with the oil inlet branch, and the energy accumulator, the ball valve and the miniature pressure transmitter are respectively and electrically connected with the electric control cabinet.

9. The centralized oil supply system according to claim 1, wherein: the oil storage tank is provided with a breather valve and a liquid level sensor, the liquid level sensor is connected with the electric control cabinet, and the electric control cabinet is connected with a liquid level alarm.

Technical Field

The invention relates to the technical field of oil supply systems, in particular to a centralized oil supply system.

Background

The construction site of the fracturing truck usually needs to be refueled to a plurality of equipment diesel engines, and the conventional refueling mode for the diesel engines of the fracturing truck is to add oil in an oil storage tank to an equipment oil tank for supplying oil through a pipeline and an oil gun. The operation is unsafe, manpower and time are wasted, the oil consumption of the internal combustion engine cannot be accurately counted, and the working efficiency is not high.

Disclosure of Invention

The invention aims to provide a centralized oil supply system to solve the problems in the prior art, so that automatic constant-pressure oil supply can be realized for a plurality of internal combustion engines simultaneously by equipment oil supply, and unused oil can flow back to an oil storage tank, thereby being safe and reliable.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a centralized oil supply system which comprises an oil storage tank, a conveying pump system, an oil return pump, an electric control cabinet and an oil supply system, wherein a plurality of groups of oil supply systems are connected in parallel, each group of oil supply system comprises an oil inlet branch, an internal combustion engine, a fuel tank and an oil return branch, a valve and a pressure transmitter are arranged on the oil inlet branch, the oil inlet branches are respectively communicated with oil conveying ports of the internal combustion engine and the fuel tank, the oil return branches are respectively communicated with oil return ports of the internal combustion engine and the fuel tank, the oil storage tank is connected with the conveying pump system, the conveying pump system is communicated with each oil inlet branch through a pipeline, the oil return pump is communicated with each oil return branch through a pipeline, the oil return pump is communicated with the oil storage tank, an oil filling port is arranged on the oil storage tank, and the conveying, The valve and the pressure transmitter are respectively electrically connected with the electric control cabinet.

Preferably, the oil inlet branch and the oil return branch are respectively provided with a flow sensor, a miniature pressure transmitter, a one-way valve and an electromagnetic valve, and the oil inlet branch is also provided with an overflow valve and a pressure reducing valve.

Preferably, the oil inlet branch and the oil return branch are communicated through an electromagnetic valve.

Preferably, the oil delivery ports of the internal combustion engine and the fuel tank are communicated with the oil inlet branch through an electric three-way valve, the oil return ports of the internal combustion engine and the fuel tank are communicated with the oil return branch through an electric three-way valve, and the two electric three-way valves are electrically connected with the electric control cabinet.

Preferably, the oil storage tank is connected the delivery pump system includes the delivery pump, set up filter and ball valve on the oil pipe of advancing of delivery pump, set up check valve and ball valve on the play oil pipe of delivery pump, set up the check valve on the time oil pipe of delivery pump, advance oil pipe with it respectively with the oil storage tank intercommunication returns oil pipe, go out oil pipe with the oil feed branch road intercommunication.

Preferably, a high-precision filter is arranged on a pipeline of the delivery pump communicated with the oil storage tank.

Preferably, the conveying pump systems are connected in parallel to form two groups, and any one group of the conveying pump systems is a standby conveying pump system.

Preferably, an energy accumulator, a ball valve and a miniature pressure transmitter are sequentially arranged on a pipeline communicated with the oil inlet branch, and the energy accumulator, the ball valve and the miniature pressure transmitter are respectively and electrically connected with the electric control cabinet.

Preferably, the oil storage tank is provided with a breather valve and a liquid level sensor, the liquid level sensor is connected with the electric control cabinet, and the electric control cabinet is connected with a liquid level alarm.

Compared with the prior art, the invention has the following technical effects:

the centralized oil supply system is highly intelligent and fully automatic in constant-pressure oil supply, the oil consumption of the internal combustion engine is counted, single and multiple diesel engines can be supplied with constant-pressure oil at any time according to field requirements, unused diesel oil can flow back to the oil storage tank, and the centralized oil supply system has the characteristics of real-time monitoring of the oil level of the oil storage tank, low-level alarm and other multi-user operations with different authorities, is safe and reliable, and saves time and labor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of a centralized oil supply system according to the present invention;

wherein: 1-oil storage tank, 2-breather valve, 3-liquid level sensor, 4-high precision filter, 5-filter, 6-delivery pump, 7-one-way valve, 8-ball valve, 9-energy accumulator, 10-miniature pressure transmitter, 11-pressure transmitter, 12-overflow valve, 13-pressure reducing valve, 14-electromagnetic valve, 15-flow sensor, 16-electric three-way valve, 17-internal combustion engine, 18-fuel tank and 19-oil return pump.

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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The invention aims to provide a centralized oil supply system to solve the problems in the prior art, so that automatic constant-pressure oil supply can be realized for a plurality of internal combustion engines simultaneously by equipment oil supply, and unused oil can flow back to an oil storage tank, thereby being safe and reliable.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

As shown in fig. 1: the embodiment provides a centralized oil supply system, including oil storage tank 1, the transport pump system, scavenge pump 19, automatically controlled cabinet and oil feeding system, oil feeding system connects in parallel is provided with a plurality of groups, every group oil feeding system all includes the oil feed branch road, internal-combustion engine 17, fuel tank 18 and oil return branch road, be provided with valve and pressure transmitter 11 on the oil feed branch road, and the oil feed branch road communicates with the oil delivery mouth of internal-combustion engine 17 and fuel tank 18 respectively, the scavenge branch road communicates with the oil return mouth of internal-combustion engine 17 and fuel tank 18 respectively, oil storage tank 1 connects the transport pump system, the transport pump system communicates with every oil feed branch road through the pipeline, scavenge pump 19 communicates with every scavenge branch road through the pipeline, scavenge pump 19 communicates with oil storage tank 1, be provided with the oiling mouth on the oil storage tank 1, the transport pump system, scavenge pump 19.

The oil inlet branch and the oil return branch are respectively provided with a flow sensor 15, a miniature pressure transmitter 10, a one-way valve 7 and an electromagnetic valve 14, the oil inlet branch is also provided with an overflow valve 12 and a pressure reducing valve 13, two sides of the overflow valve 12 are respectively provided with a pressure transmitter 11, and the arrangement of the overflow valve 12 can fully ensure the oil pressure of a main oil pipeline in an oil supply system; the pressure reducing valve 13 can ensure that the oil pressure on the oil inlet branch is suitable for the internal combustion engine. The oil inlet branch and the oil return branch are communicated through an electromagnetic valve 14, and the electric three-way valve can switch whether the internal combustion engine is supplied with oil by a fuel tank or the oil by the oil storage tank 1 in the embodiment.

Oil delivery ports of the internal combustion engine 17 and the fuel tank 18 are communicated with the oil inlet branch through an electric three-way valve 16, oil return ports of the internal combustion engine 17 and the fuel tank 18 are communicated with the oil return branch through an electric three-way valve 16, and the two electric three-way valves 16 are electrically connected with an electric control cabinet. Every oil feeding system of group sets up a branch control cabinet respectively in this embodiment for oil feed flow and pressure on the oil feeding system of every group of control nearby more conveniently realize constant voltage fuel feeding and data acquisition, the branch control cabinet gathers data transmission to automatically controlled cabinet again, makes things convenient for the remote operation of automatically controlled cabinet and monitors on-the-spot operating mode. The electric control cabinet of this embodiment is a touch screen operating system.

The oil storage tank 1 is connected with the conveying pump system and comprises a conveying pump 6, a filter 5 and a ball valve 8 are arranged on an oil inlet pipe of the conveying pump 6, a check valve 7 and a ball valve 8 are arranged on an oil outlet pipe of the conveying pump 6, a check valve 7 is arranged on an oil return pipe of the conveying pump 6, the oil inlet pipe and the oil return pipe are respectively communicated with the oil storage tank 1, and the oil outlet pipe is communicated with an oil inlet branch. A high-precision filter 4 is arranged on a pipeline of the delivery pump 6 communicated with the oil storage tank 1. The conveying pump system is provided with two sets of in parallel, and arbitrary a set of conveying pump system is reserve conveying pump system, can realize conveying pump system's conversion through the corresponding ball valve 8 of switch, and one of them set of conveying pump system breaks down, does not influence normal work. The high-precision filter 4 is used for eliminating impurities in oil liquid so as to protect the normal use of a valve and equipment and reduce the maintenance cost of the equipment. An energy accumulator 9, a ball valve 8 and a miniature pressure transmitter 10 are sequentially arranged on a pipeline communicated with the oil inlet branch, and the energy accumulator 9, the ball valve 8 and the miniature pressure transmitter 10 are respectively and electrically connected with an electric control cabinet. The miniature pressure transmitter 10 is used for testing oil pressure on the oil outlet pipe, and the energy accumulator 9 can slowly change the oil pressure in the pipeline and play a role in balancing hydraulic pressure.

Be provided with breather valve 2 and level sensor 3 on the oil storage tank 1, the breather valve is arranged in communicating external atmosphere after atmospheric pressure reduces in the oil storage tank 1, makes the oil outlet smooth and easy. The liquid level sensor 3 is connected with an electric control cabinet, and the electric control cabinet is connected with a liquid level alarm. When a low liquid level alarm window pops up on the interface of the electric control cabinet, the liquid level alarm can give out alarm sound and light for a long time, and diesel oil needs to be supplemented to the oil storage tank 1; when the electric control cabinet interface pops up a high liquid level alarm window, the oil supply to the oil storage tank 1 needs to be stopped.

The centralized oil supply system of the embodiment is used for supplying oil to be specially used for conveying diesel oil and can also be used for conveying media with characteristics similar to those of the diesel oil. As shown in fig. 1, the structure of the present embodiment is shown by taking two sets of oil supply systems as an example. The method comprises the steps that firstly, the main oil pipeline and the main oil return pipeline need to be exhausted, after the exhaust operation is finished, the oil supply pressure of an interface of an electric control cabinet is observed, and when the oil supply pressure is reduced to be less than 50KPa, an oil supply system can be started. Then, the miniature pressure transmitter 10 and the ball valve 8 on the branch pipelines in each oil supply system are opened, the oil supply pressure of an oil supply vehicle interface in a touch screen is observed, an electric control cabinet interface clicks a system start oil supply button, the delivery pump 6 and the oil return pump 19 are started simultaneously, after stabilization, the delivery pump 6 can enter a 50KPa constant-pressure oil supply state to operate, the electric three-way valve 16 is switched from a fuel tank 17 to an oil supply state of the internal combustion engine 18 to be directly supplied to the internal combustion engine 18, and after the oil supply of each branch is in the oil supply state of the oil supply system, the centralized oil supply start of the system is completed.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.