阅读说明：本技术 一种柔性液灌控制系统 (Flexible liquid irrigation control system ) 是由 高龙泉 赵桥 马双富 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种柔性液灌控制系统,包括：罐体,包括多个底部管汇相连的罐仓,所述罐体首尾分别设置有出液管道与进液管道；电动阀组,设置于罐体的出液管道和进液管道,控制油液的输入与排出；液位计,设置于出液管道,用于计量当前罐体内油液液位；PLC控制柜,安装于罐体底部,所述PLC控制柜与电动阀和液位计电连接；上位机,连接PLC控制柜,根据液位信息控制电动阀,实现自动调节罐体内液位高度。本发明通过PLC控制器与上位机相连,实时控制液灌出液端阀门和进液端阀门,实现远程供排液的控制,降低操作人员劳动强度,同时通过设置的液位计,可以实时监测罐内液位情况,避免液罐抽空。(The invention discloses a flexible liquid irrigation control system, which comprises: the tank body comprises a plurality of tank bins connected by bottom manifolds, and a liquid outlet pipeline and a liquid inlet pipeline are respectively arranged at the head and the tail of the tank body; the electric valve group is arranged on the liquid outlet pipeline and the liquid inlet pipeline of the tank body and used for controlling the input and the discharge of oil liquid; the liquid level meter is arranged on the liquid outlet pipeline and used for measuring the liquid level of the oil in the current tank body; the PLC control cabinet is arranged at the bottom of the tank body and is electrically connected with the electric valve and the liquid level meter; the upper computer is connected with the PLC control cabinet, and controls the electric valve according to the liquid level information to realize automatic adjustment of the height of the liquid level in the tank body. The liquid level monitoring device is connected with the upper computer through the PLC controller, the liquid filling end valve and the liquid inlet end valve are controlled in real time, remote liquid supply and discharge control is achieved, the labor intensity of operators is reduced, meanwhile, the liquid level condition in the tank can be monitored in real time through the arranged liquid level meter, and the liquid tank is prevented from being evacuated.)

1. A flexible fluid irrigation control system comprising:

the tank body comprises a plurality of tank bins connected by bottom manifolds, and a liquid outlet pipeline and a liquid inlet pipeline are respectively arranged at the head and the tail of the tank body;

the electric valve group is arranged on the liquid outlet pipeline and the liquid inlet pipeline of the tank body and used for controlling the input and the discharge of oil liquid;

the liquid level meter is arranged on the liquid outlet pipeline and used for measuring the liquid level of the oil in the current tank body;

the PLC control cabinet is arranged at the bottom of the tank body and is electrically connected with the electric valve and the liquid level meter;

the upper computer is connected with the PLC control cabinet, and controls the electric valve according to the liquid level information to realize automatic adjustment of the height of the liquid level in the tank body.

2. The flexible liquid tank control system of claim 1, wherein the PLC control cabinet comprises:

the liquid level indicator is used for displaying the current liquid level value according to the received liquid level information;

the electric valve control knob group is respectively connected with an electric valve for controlling the liquid outlet pipeline and the liquid inlet pipeline, so that the liquid level height in the tank body can be manually adjusted;

and the control switching knob is used for selecting two control modes of the electric valve, namely automatic adjustment and manual adjustment.

3. The flexible liquid tank control system according to claim 1, wherein the level gauge is a pressure transducer for calculating a current level of oil in the tank based on a pressure of the oil at the outlet of the outlet pipe.

4. The flexible liquid irrigation control system according to claim 1, wherein the PLC control cabinet is connected to the upper computer through ethernet communication, and the automatic adjustment of the liquid level of the liquid irrigation is realized by controlling the state of the electric valve set through receiving an electric valve control command from the upper computer.

5. The flexible liquid filling control system of claim 1, wherein the upper computer is a high-performance computer, and issues an electric valve control command to control the input and discharge of oil liquid according to the received current liquid level information.

6. The flexible fluid irrigation control system of claim 1 wherein the electrical valve block further comprises a manually operated control means for effecting control of the valve in the event of failure of the electrical valve.

Technical Field

The invention relates to the field of oil and gas construction, in particular to a flexible liquid filling control system.

Background

Oil and gas extraction is a process of extracting oil, natural gas, and the like buried in an underground oil reservoir from the ground. At the oil gas job site, constructor can frequently manually control the feed liquor end valve, the play liquid end valve of storage confession fluid reservoir according to the construction requirement, and current scheme when liquid is irritated and is used, often can appear storing the high condition of liquid level to the interior liquid level of jar and not know, causes because the fluid reservoir overflow jar, the phenomenon of managing to find time probably appear in manual operation valve untimely and takes place. In order to prevent the liquid tank from overflowing and the liquid tank from being evacuated during oil and gas exploitation, a flexible liquid tank control system is needed.

Disclosure of Invention

The invention aims to solve the problems and provides a flexible liquid filling control system.

A flexible fluid tank control system comprising:

the tank body comprises a plurality of tank bins connected by bottom manifolds, and a liquid outlet pipeline and a liquid inlet pipeline are respectively arranged at the head and the tail of the tank body;

the electric valve group is arranged on the liquid outlet pipeline and the liquid inlet pipeline of the tank body and used for controlling the input and the discharge of oil liquid;

the liquid level meter is arranged on the liquid outlet pipeline and used for measuring the liquid level of the oil in the current tank body;

the PLC control cabinet is arranged at the bottom of the tank body and is electrically connected with the electric valve and the liquid level meter;

the upper computer is connected with the PLC control cabinet, and controls the electric valve according to the liquid level information to realize automatic adjustment of the height of the liquid level in the tank body.

Further, a control system is irritated to flexible liquid, the PLC switch board includes:

the liquid level indicator is used for displaying the current liquid level value according to the received liquid level information;

the electric valve control knob group is respectively connected with an electric valve for controlling the liquid outlet pipeline and the liquid inlet pipeline, so that the liquid level height in the tank body can be manually adjusted;

and the control switching knob is used for selecting two control modes of the electric valve, namely automatic adjustment and manual adjustment.

Furthermore, the flexible liquid filling control system is characterized in that the liquid level meter is a pressure transmitter and is used for calculating the current liquid level of the oil in the tank body according to the oil pressure at the liquid outlet pipe opening.

Further, a flexible liquid fills control system, the PLC switch board links to each other with the host computer through the mode of ethernet communication, controls the state of electrovalve group through receiving the electrovalve control command control of host computer, realizes the automatically regulated of liquid level of irritating.

Further, the upper computer is a high-performance computer, issues an electric valve control command according to the received current liquid level information, and controls input and discharge of oil.

Furthermore, the electric valve group further comprises a manually operated control method, and the control method is used for controlling the valve when the electric valve fails.

The invention has the beneficial effects that: the liquid level monitoring device is connected with the upper computer through the PLC controller, the liquid filling end valve and the liquid inlet end valve are controlled in real time, remote liquid supply and discharge control is achieved, the labor intensity of operators is reduced, meanwhile, the liquid level condition in the tank can be monitored in real time through the arranged liquid level meter, and the liquid tank is prevented from being evacuated.

Drawings

Fig. 1 is a schematic block diagram of the principle of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

In this embodiment, as shown in fig. 1 and 2, a flexible liquid filling control system includes four tank chambers, and the tank chambers are connected by a bottom manifold. Steel structure supports are arranged around the steel support. The liquid inlet end is provided with two electric valves which are arranged on a tank bottom manifold in parallel, the liquid outlet end is provided with two electric valves which are arranged on the tank bottom manifold in parallel, a liquid level meter (a pressure transmitter) is arranged on the liquid outlet end manifold, and a control box is arranged at the bottom of the water tank. The control cabinet is provided with a liquid level indicating instrument for displaying the current liquid level value, a liquid inlet end electric valve control knob for simultaneously opening/closing the two electric valves, and a liquid outlet end control knob for simultaneously opening/closing the two electric valves. A local/remote switching knob. The control cabinet, the electric valve and the liquid level meter are connected to a PLC in the control cabinet through hard wires, and the control cabinet can be communicated with an upper computer through Ethernet.

When the knob is switched to be remote, the upper computer system can automatically adjust according to the height of the liquid level in the tank, and when the liquid level reaches 95% of the height of the liquid tank, liquid supply at the liquid inlet end is automatically stopped. The tank provides drainage when the liquid level is below 5%. The liquid tank can simultaneously supply and discharge liquid when the liquid level is between 5 and 95 percent.

When the knob is switched to the local place, liquid can be fed and discharged according to the operation of actual working conditions. When the liquid level reaches 95% of the height of the liquid tank, the system can automatically stop liquid supply at the liquid inlet end. When the liquid level is lower than 5%, the system automatically stops draining. The liquid tank can freely operate to feed liquid and discharge liquid when the liquid level is between 5 and 95 percent.

The valve has two modes of electric control and manual operation. When the electric valve fails, the electric valve can be operated by manually pulling the valve.

The liquid level monitoring device is connected with the upper computer through the PLC controller, the liquid filling end valve and the liquid inlet end valve are controlled in real time, remote liquid supply and discharge control is achieved, the labor intensity of operators is reduced, meanwhile, the liquid level condition in the tank can be monitored in real time through the arranged liquid level meter, and the liquid tank is prevented from being evacuated.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.