Automatic cleaning type intermediate container device and cleaning method thereof

Abstract

The present invention discloses an automatic cleaning type intermediate container device and a cleaning method thereof, the device comprises an intermediate container with a piston, a high-pressure gas cylinder, two cleaning agent tanks, a clean water tank, two recovery pools, and a controller; the high-pressure gas cylinder is connected to the top of the intermediate container through a pipeline, the clean water tank is connected to the bottom of the intermediate container through a pipeline; a metering pump and a valve are respectively arranged on the pipeline between the clean water tank and the intermediate container; a valve is arranged on the pipeline between the high-pressure gas cylinder and the intermediate container; two cleaning agent tanks are respectively connected to the top and bottom ends of the intermediate container through pipelines, and a metering pump and a valve are respectively arranged on the pipeline between the two cleaning agent tanks and the intermediate container. During cleaning, efficient and rapid cleaning is achieved by injecting high-pressure gas, cleaning liquid, and clean water into the intermediate container.

Description

Technical Field

[0001] The invention relates to an intermediate container, in particular to an automatic cleaning intermediate container and a cleaning method thereof, belonging to the technical field of reservoir simulation experimental tools. Background Art

[0002] In the physical simulation indoor evaluation experiment of enhanced oil recovery, the intermediate container device is often used. Usually, the intermediate container is filled with chemical agents that need to be injected into the experiment. In general, the bottom of the intermediate container is connected to the horizontal flow pump, and the top is connected to the pipeline. The distilled water injected by the horizontal flow pump drives the piston of the intermediate container to move, so as to push the agent into the pipeline. Since the intermediate container is used frequently and has a heavy weight, if other chemical agents are replaced, the used intermediate container needs to be cleaned. The disassembly and cleaning of the device is time-consuming and laborious. If the cleaning is not thorough, it will also cause pollution of residual agents. Summary of the invention

[0003] The object of the present invention is to provide an automatic cleaning type intermediate container device and a cleaning method thereof, so as to avoid the difficulty of cleaning the intermediate container due to the replacement of the used reagents, effectively solve the pollution of the residual reagents, save labor, time and effort.

[0004] In order to achieve the above object, the present invention adopts the following technical solution.

[0005] An automatic cleaning intermediate container device is characterized in that it includes an intermediate container with a piston, a high-pressure gas cylinder, two cleaning agent tanks, a clean water tank, two recovery tanks, and a controller; the high-pressure gas cylinder is connected to the top end of the intermediate container through a pipeline, and the clean water tank is connected to the bottom end of the intermediate container through a pipeline; a metering pump and a valve are respectively provided on the pipeline between the clean water tank and the intermediate container; a valve is provided on the pipeline between the high-pressure gas cylinder and the intermediate container; the two cleaning agent tanks are respectively connected to the top and bottom ends of the intermediate container through pipelines, and a metering pump and a valve are respectively provided on the pipeline between the two cleaning agent tanks and the intermediate container; the controller is connected to each metering pump to control the switch of the metering pump and the amount of liquid pumped in.

[0006] As a preferred technical solution, the high-pressure gas cylinder is a high-pressure nitrogen cylinder.

[0007] As a preferred technical solution, each valve is provided with an electromagnetic switch, and each electromagnetic switch is connected to the controller through a line.

[0008] As a preferred technical solution, the controller is a programmable logic controller or a computer terminal.

[0009] The cleaning method of any one of the above-mentioned automatic cleaning intermediate container devices comprises the following steps:

[0010] Step 1: Open the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; open the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; inject gas from the high-pressure gas cylinder into the intermediate container, push the piston downward to the bottom end of the intermediate container, and close the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; press out the liquid under the piston and collect it in the recovery tank connected to the bottom end of the intermediate container; close the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto;

[0011] Step 2: Open the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto, and open the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; the cleaning agent tank connected to the bottom end of the intermediate container pumps cleaning agent into the intermediate container through a metering pump, pushes the piston upward to the top end of the intermediate container, and closes the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto; closes the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto;

[0012] Step 3: Open the valve on the pipeline between the top of the intermediate container and the cleaning agent tank connected thereto; open the valve on the pipeline between the bottom of the intermediate container and the recovery tank connected thereto; the metering pump connected to the top of the intermediate container pumps the cleaning agent into the intermediate container through the metering pump, pushes the piston downward to the bottom of the intermediate container, presses out the liquid under the piston and collects it in the recovery tank connected to the bottom of the intermediate container; closes the valve on the pipeline between the bottom of the intermediate container and the recovery tank connected thereto; closes the valve on the pipeline between the top of the intermediate container and the cleaning agent tank connected thereto;

[0013] Open the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto, and open the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; the cleaning agent tank connected to the bottom end of the intermediate container pumps cleaning agent into the intermediate container through a metering pump, pushing the piston to move upward to the top end of the intermediate container, squeezing out the liquid on the upper part of the piston and collecting it in the recovery tank connected to the top end of the intermediate container, and closing the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto;

[0014] Step 4: Repeat step 3 until the waste liquid in the two recovery pools is close in color to the cleaning agent in the cleaning agent tank;

[0015] Step 5: Open the valve on the pipeline between the top of the intermediate container and the recovery tank connected thereto; open the valve on the pipeline between the intermediate container and the clean water tank; pump clean water from the clean water tank into the intermediate container, push the piston upward to the top, press out the liquid on the upper part of the piston and collect it in the recovery tank connected to the top of the intermediate container; close the valve on the pipeline between the top of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline between the intermediate container and the clean water tank;

[0016] Open the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; open the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; inject gas from the high-pressure gas cylinder into the intermediate container, push the piston to the bottom end of the intermediate container, press out the liquid under the piston and collect it in the recovery tank connected to the bottom end of the intermediate container; close the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container;

[0017] Step 6: Repeat step 5 once or more times to complete the cleaning process.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device is fully controlled by a computer terminal. The piston is pushed by gas from the top to the bottom of the intermediate container. The cleaning agent continuously flows from the upper and lower parts of the piston to flush the wall of the intermediate container until it is clean.

[0020] 2. Simple structure, time-saving and labor-saving. This device realizes the full-automatic washing of the intermediate container. The operation process of the whole set of cleaning device is controlled by computer, which is simple to operate, greatly saves labor costs, shortens the previous cleaning time, and ensures the cleaning quality and improves efficiency.

[0021] 3. It has a wide range of applications and can be applied to intermediate containers of various types and volumes, making it easy to promote and implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the automatic cleaning intermediate container device of the present invention.

[0023] Among them: intermediate container-1; high-pressure gas cylinder-2; controller-3; recovery tank-4; cleaning agent tank-5; metering pump-6; valve-7; piston-8; clean water tank-9. DETAILED DESCRIPTION

[0024] The detailed description and technical contents of the present invention are described as follows with reference to the accompanying drawings. However, the accompanying drawings are only provided for reference and description and are not intended to limit the present invention.

[0025] Example 1. Figure 1 As shown, an automatic cleaning intermediate container device includes an intermediate container 1 with a piston 8, a high-pressure gas cylinder 2, two cleaning agent tanks 5, a clean water tank 9, two recovery tanks 4, and a controller 3.

[0026] The high-pressure gas cylinder 2 is connected to the top end of the intermediate container 1 through a pipeline, and the clean water tank 9 is connected to the bottom end of the intermediate container 1 through a pipeline; a metering pump 6 and a valve 7 are respectively provided on the pipeline between the clean water tank 9 and the intermediate container 1; a valve 7 is provided on the pipeline between the high-pressure gas cylinder 2 and the intermediate container 1.

[0027] The two cleaning agent tanks 5 are connected to the top and bottom ends of the intermediate container 1 through pipelines, and a metering pump 6 and a valve 7 are respectively provided on the pipelines between the two cleaning agent tanks 5 and the intermediate container 1.

[0028] The controller 3 is connected to each metering pump 6 to control the switch of the metering pump 6 and the amount of liquid pumped in.

[0029] Each valve 7 is provided with an electromagnetic switch, and each electromagnetic switch is connected to the controller 3 through a line. The controller 3 is a computer terminal.

[0030] The switch of metering pump 6 pumps and the amount of liquid pumped in are all controlled by computer program. Each pump is provided with an electromagnetic valve, which is connected to the controller through a line, and the flow rate is controlled by the size of the electromagnetic valve.

[0031] The high-pressure gas cylinder is mainly filled with nitrogen, and the pressure and flow rate of the gas released from the gas cylinder are controlled by a computer terminal. The computer terminal controls the pressure and flow rate through a valve between the high-pressure gas cylinder and the intermediate container.

[0032] The cleaning agent tank and the clean water tank are mainly filled with cleaning agent and clean water for cleaning the intermediate container. The cleaning agent continuously flushes the wall of the intermediate container as the piston in the intermediate container moves. The switch of the valve is uniformly controlled by a computer terminal. The recovery pool is mainly used to recover the cleaning waste liquid.

[0033] The cleaning method of the automatic cleaning intermediate container device includes: before cleaning, the cleaning agent tank and the clean water tank are respectively filled with cleaning agent and clean water, the pipelines of all components are connected, and the computer control terminal sets the cleaning program.

[0034] The cleaning steps are as follows:

[0035] Step 1: Open the valve 7 on the pipeline connecting the high-pressure gas cylinder 2 and the top of the intermediate container 1; open the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the recovery tank 4 connected thereto; inject gas from the high-pressure gas cylinder 2 into the intermediate container 1, push the piston 8 downward to the bottom end of the intermediate container 1, and close the valve 7 on the pipeline connecting the high-pressure gas cylinder 2 and the top of the intermediate container 1; press out the liquid under the piston 8 and collect it in the recovery tank 4 connected to the bottom end of the intermediate container 1; close the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the recovery tank 4 connected thereto;

[0036] Step 2: Open the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the cleaning agent tank 5 connected thereto, and open the valve 7 on the pipeline between the top end of the intermediate container 1 and the recovery tank 4 connected thereto; the cleaning agent tank 5 connected to the bottom end of the intermediate container 1 pumps the cleaning agent into the intermediate container 1 through the metering pump 6, pushing the piston 8 to move upward to the top end of the intermediate container 1, and closing the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the cleaning agent tank 5 connected thereto; and closing the valve 7 on the pipeline between the top end of the intermediate container 1 and the recovery tank 4 connected thereto;

[0037] Step 3: Open the valve 7 on the pipeline between the top of the intermediate container 1 and the cleaning agent tank 5 connected thereto; open the valve 7 on the pipeline between the bottom of the intermediate container 1 and the recovery tank 4 connected thereto; the metering pump 6 connected to the top of the intermediate container 1 pumps the cleaning agent into the intermediate container 1 through the metering pump 6, pushing the piston 8 to move downward to the bottom of the intermediate container 1, squeezing out the liquid under the piston 8 and collecting it in the recovery tank 4 connected to the bottom of the intermediate container 1; close the valve 7 on the pipeline between the bottom of the intermediate container 1 and the recovery tank 4 connected thereto; close the valve 7 on the pipeline between the top of the intermediate container 1 and the cleaning agent tank 5 connected thereto;

[0038] Open the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the cleaning agent tank 5 connected thereto, and open the valve 7 on the pipeline between the top end of the intermediate container 1 and the recovery tank 4 connected thereto; the cleaning agent tank 5 connected to the bottom end of the intermediate container 1 pumps the cleaning agent into the intermediate container 1 through the metering pump 6, pushing the piston 8 to move upward to the top end of the intermediate container 1, pressing out the liquid on the upper part of the piston 8 and collecting it in the recovery tank 4 connected to the top end of the intermediate container 1, and closing the valve 7 on the pipeline between the top end of the intermediate container 1 and the recovery tank 4 connected thereto; close the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the cleaning agent tank 5 connected thereto;

[0039] Step 4: Repeat step 3 until the waste liquid in the two recovery tanks 4 is close in color to the cleaning agent in the cleaning agent tank 5;

[0040] Step 5: Open the valve 7 on the pipeline between the top of the intermediate container 1 and the recovery tank 4 connected thereto; open the valve 7 on the pipeline between the intermediate container 1 and the clean water tank 9; pump clean water from the clean water tank 9 into the intermediate container 1, push the piston 8 upward to the top, press out the liquid on the upper part of the piston 8 and collect it in the recovery tank 4 connected to the top of the intermediate container 1; close the valve 7 on the pipeline between the top of the intermediate container 1 and the recovery tank 4 connected thereto; close the valve 7 on the pipeline between the intermediate container 1 and the clean water tank 9;

[0041] Open the valve 7 on the pipeline connecting the high-pressure gas cylinder 2 and the top of the intermediate container 1; open the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the recovery tank 4 connected thereto; inject gas from the high-pressure gas cylinder 2 into the intermediate container 1, push the piston 8 to the bottom end of the intermediate container 1, press out the liquid under the piston 8 and collect it in the recovery tank 4 connected to the bottom end of the intermediate container 1; close the valve 7 on the pipeline between the bottom end of the intermediate container 1 and the recovery tank 4 connected thereto; close the valve 7 on the pipeline connecting the high-pressure gas cylinder 2 and the top of the intermediate container 1;

[0042] Step 6: Repeat step 5 once and the cleaning is complete.

[0043] In this embodiment, according to the program setting of the computer control terminal, when cleaning starts, the valve connected to the high-pressure gas cylinder is automatically opened, and nitrogen is injected into the intermediate container from the high-pressure gas cylinder. The nitrogen pushes the piston to move downward to the bottom of the intermediate container, presses out the liquid under the piston, and collects it from the recovery pool at the bottom. Then, the cleaning agent tank at the bottom is pumped into the cleaning agent through the metering pump, pushing the piston to move upward, and cleaning the wall tube of the intermediate container at the same time. When the piston is pushed to the top, the metering pump at the top of the intermediate container starts to pump in the cleaning liquid. At the same time, the recovery pool at the bottom of the intermediate container starts to recycle the waste liquid, and the cleaning agent at the top is slowly injected into the intermediate container, pushing the piston to move downward continuously. When the piston is pushed to the bottom of the intermediate container, the valve of the bottom recovery pool is closed, and the cleaning agent tank at the bottom continues to pump in the cleaning agent to push the piston upward. At this time, the upper recovery pool recycles the waste liquid, and this process is repeated several times until the waste liquid in the two recovery pools is close to the color of the cleaning agent in the cleaning agent tank. The cleaning agent continuously flushes the wall tube of the intermediate container with the movement of the piston in the intermediate container, and the cleaning effect is good. Finally, clean water is pumped in from the clean water tank at the bottom of the intermediate container to push the piston upward to the top. The top recovery pool recovers the waste liquid, and nitrogen is injected from the high-pressure gas cylinder to push the piston to the bottom of the intermediate container. Clean water is then repeatedly pumped in from the clean water tank at the bottom, the top recovery pool recovers the waste liquid, and nitrogen is injected from the high-pressure gas cylinder to push the piston to the bottom of the intermediate container. The wall cylinder is flushed with clean water until no cleaning agent remains.

[0044] The above-listed embodiments are only for understanding the present invention and are not intended to limit the technical solutions described in the present invention. A person skilled in the art may make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications shall be included in the protection scope of the claims of the present invention. Anything not described in detail in the present invention is a known technology to those skilled in the art.

Claims

1. A method for cleaning an automatic cleaning intermediate container device, characterized in that: The container device includes an intermediate container with a piston, a high-pressure gas cylinder, two cleaning agent tanks, a clean water tank, two recovery tanks, and a controller; The high-pressure gas cylinder is connected to the top of the intermediate container through a pipeline, and the clean water tank is connected to the bottom of the intermediate container through a pipeline; a metering pump and a valve are respectively provided on the pipeline between the clean water tank and the intermediate container; a valve is provided on the pipeline between the high-pressure gas cylinder and the intermediate container; The two cleaning agent tanks are connected to the top and bottom ends of the intermediate container through pipelines, and metering pumps and valves are provided on the pipelines between the two cleaning agent tanks and the intermediate container; The controller is connected to each metering pump to control the switch of the metering pump and the amount of liquid pumped in; The two recovery tanks are connected to the top and bottom ends of the intermediate container through pipelines, and valves are provided on the pipelines between the two recovery tanks and the intermediate container; The cleaning method comprises the following steps: Step 1: Open the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; open the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; inject gas from the high-pressure gas cylinder into the intermediate container, push the piston downward to the bottom end of the intermediate container, and close the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; press out the liquid under the piston and collect it in the recovery tank connected to the bottom end of the intermediate container; close the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; Step 2: Open the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto, and open the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; the cleaning agent tank connected to the bottom end of the intermediate container pumps cleaning agent into the intermediate container through a metering pump, pushes the piston upward to the top end of the intermediate container, and closes the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto; closes the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; Step 3: Open the valve on the pipeline between the top of the intermediate container and the cleaning agent tank connected thereto; open the valve on the pipeline between the bottom of the intermediate container and the recovery tank connected thereto; the metering pump connected to the top of the intermediate container pumps the cleaning agent into the intermediate container through the metering pump, pushes the piston downward to the bottom of the intermediate container, presses out the liquid under the piston and collects it in the recovery tank connected to the bottom of the intermediate container; closes the valve on the pipeline between the bottom of the intermediate container and the recovery tank connected thereto; closes the valve on the pipeline between the top of the intermediate container and the cleaning agent tank connected thereto; Open the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto, and open the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; the cleaning agent tank connected to the bottom end of the intermediate container pumps cleaning agent into the intermediate container through a metering pump, pushing the piston to move upward to the top end of the intermediate container, squeezing out the liquid on the upper part of the piston and collecting it in the recovery tank connected to the top end of the intermediate container, and closing the valve on the pipeline between the top end of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline between the bottom end of the intermediate container and the cleaning agent tank connected thereto; Step 4: Repeat step 3 until the waste liquid in the two recovery tanks is close in color to the cleaning agent in the cleaning agent tank; Step 5: Open the valve on the pipeline between the top of the intermediate container and the recovery tank connected thereto; open the valve on the pipeline between the intermediate container and the clean water tank; pump clean water from the clean water tank into the intermediate container, push the piston upward to the top, press out the liquid on the upper part of the piston and collect it in the recovery tank connected to the top of the intermediate container; close the valve on the pipeline between the top of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline between the intermediate container and the clean water tank; Open the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; open the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; inject gas from the high-pressure gas cylinder into the intermediate container, push the piston to the bottom end of the intermediate container, press out the liquid under the piston and collect it in the recovery tank connected to the bottom end of the intermediate container; close the valve on the pipeline between the bottom end of the intermediate container and the recovery tank connected thereto; close the valve on the pipeline connecting the high-pressure gas cylinder and the top of the intermediate container; Step 6: Repeat step 5 once or more times to complete the cleaning process.

2. The cleaning method of the automatic cleaning intermediate container device according to claim 1, characterized in that: In the container device, the high-pressure gas cylinder is a high-pressure nitrogen cylinder.

3. The cleaning method of the automatic cleaning intermediate container device according to claim 1, characterized in that: In the container device, each valve is provided with an electromagnetic switch, and each electromagnetic switch is connected to the controller through a line.

4. The cleaning method of the automatic cleaning intermediate container device according to claim 1, characterized in that: In the container device, the controller is a programmable logic controller or a computer terminal.

Images