Crude oil loading system

Abstract

The utility model provides a crude oil loading system which comprises a controller, an electric valve connected with the controller, an electrostatic grounding clamp and a liquid level meter, the liquid level meter is arranged in an oil tank, an oil conveying pipeline is led into the oil tank, the electric valve is arranged on the oil conveying pipeline, and the electrostatic grounding clamp is connected with the oil tank. According to the utility model, not only can liquid level monitoring be realized, but also the liquid inlet valve can be automatically turned off while liquid level early warning and static early warning are performed, so that the risk of crude oil overflow is reduced, and the safety of loading operation is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crude oil gathering and transportation, and in particular relates to a crude oil loading system. Background Art

[0002] After crude oil is extracted from the wellhead, it can be transported through underground pipelines or tank trucks. Underground pipeline transportation is a common and safe method, but some oil wells can only be transported by tank trucks due to the long distance between the wells. In the process of oil transportation, loading is the most initial and important link, and the safety of the operation is particularly important. During the loading operation, it is necessary to confirm the liquid level of the crude oil in the tank truck and prevent static electricity. If the liquid level data is not read in time, it will cause the truck to be not fully loaded or the crude oil to overflow. In addition, the static electricity generated during the flow of oil is transmitted to the tank truck through the oil, which poses a great safety hazard. These two aspects directly affect the timeliness and safety of the loading operation.

[0003] At present, there are two ways to read the crude oil level inside the tank truck: reading by staff on the tank, tank truck level monitoring, etc. Among them, tank truck level monitoring solves the problem of frequent staff going to the tank, but it cannot automatically shut off the oil inlet valve when the crude oil level reaches the set level, and it cannot automatically shut off the oil inlet valve when there is static electricity in the tank truck. As a result, during the loading process, staff still need to manually shut off the liquid inlet valve according to the early warning situation. Affected by human reaction and action time, there is still a risk of overflow. Utility Model Content

[0004] One purpose of the utility model is to provide a crude oil loading system, which can not only realize liquid level monitoring, but also automatically shut off the liquid inlet valve while providing liquid level warning and static electricity warning, thereby reducing the risk of crude oil overflow and improving the safety of loading operations.

[0005] According to the utility model, a crude oil loading system is provided, comprising a controller, an electric valve connected to the controller, an electrostatic grounding clamp and a liquid level meter, wherein the liquid level meter is arranged in an oil tank box, an oil pipeline is connected to the interior of the oil tank box, the electric valve is arranged on the oil pipeline, and the electrostatic grounding clamp is connected to the oil tank box.

[0006] In a preferred embodiment, the crude oil loading system further comprises a liquid level indicator light connected to the controller, for indicating whether the liquid level in the oil tank is in a normal or overflowing state.

[0007] In a preferred embodiment, the liquid level meter is arranged at the oil filling port on the top of the oil tank.

[0008] In a preferred embodiment, the crude oil loading system further comprises a return plate connected to the controller, for placing the electrostatic grounding clamp when no oil is loaded.

[0009] In a preferred embodiment, the crude oil loading system further includes a power supply connected to the controller.

[0010] In a preferred embodiment, the liquid level indicator light is arranged on the controller.

[0011] In a preferred embodiment, the crude oil loading system further comprises a static electricity indicator light connected to the controller, for indicating whether static electricity is in a normal release or interrupted state during the oil loading operation.

[0012] In a preferred embodiment, the crude oil loading system further comprises an audible and visual alarm connected to the controller, for giving an alarm when the liquid level reaches a set value or static electricity is in a release interruption state.

[0013] In a preferred embodiment, the crude oil loading system also includes a field grounding and a grounding resistance display both connected to the controller, the field grounding is used to provide good grounding and a grounding resistance value that meets the requirements for the oil loading operation, and the grounding resistance display is used to display the grounding resistance value of the loading system in real time.

[0014] In a preferred embodiment, the crude oil loading system further comprises a valve manual opening button provided on the controller for manually opening the electric valve.

[0015] The utility model has at least the following technical effects:

[0016] According to the utility model, a controller, an electric valve connected to the controller, an electrostatic grounding clamp and a liquid level meter are provided. Since the liquid level meter is arranged in the oil tank box, the oil tank box is connected to the oil pipeline, the electric valve is arranged on the oil pipeline, and the electrostatic grounding clamp is connected to the oil tank box, it is possible to realize liquid level monitoring and automatically shut off the liquid inlet valve at the same time as the liquid level warning and the electrostatic warning, thereby reducing the risk of crude oil overflow and improving the safety of loading operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structural diagram of a crude oil loading system according to an embodiment of the utility model is schematically shown.

[0018] In the present application, all drawings are schematic drawings, which are only used to illustrate the principles of the present utility model and are not drawn according to the actual scale. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] like Figure 1 As shown, the crude oil loading system 100 of the utility model comprises a controller 1, an electric valve 2 connected to the controller 1, an electrostatic grounding clamp 11 and a liquid level meter 4, the liquid level meter 4 is arranged in the oil tank box 3 of the oil tank box 3, and is used to detect the liquid level inside the oil tank box 3, the first end of the oil pipeline 5 is connected to the inside of the oil tank box 3, the second end of the oil pipeline 5 is connected to the external oil source, the electric valve 2 is arranged on the oil pipeline 5, and the electrostatic grounding clamp 11 is connected to the oil tank box 3. For example, each component can be connected to the controller 1 through a power signal line 6.

[0022] When the liquid level meter 4 detects that the liquid level inside the oil tank box 3 reaches the set position, the liquid level meter 4 sends a control signal to the controller 1, the controller 1 receives the control signal, and controls the electric valve 2 to close according to the interlocking control logic to stop filling oil into the oil tank box 3; when the electrostatic grounding clamp 11 is disconnected from the oil tank box 3 or the line contact is poor, the electrostatic grounding clamp 11 sends a control signal to the controller 1, the controller 1 receives the control signal, and controls the electric valve 2 to close according to the interlocking control logic to stop filling oil into the oil tank box 3; thereby, liquid level monitoring can be achieved, and the liquid inlet valve can be automatically closed at the same time as the liquid level warning and electrostatic warning, thereby reducing the risk of crude oil overflow and improving the safety of loading operations.

[0023] In one or more embodiments, the crude oil loading system 100 of the utility model further includes a liquid level indicator light 12 connected to the controller 1, which is used to indicate that the liquid level in the oil tank box 3 is in a normal or overflow state. When the crude oil in the oil tank box 3 is immersed in the liquid level meter 4, the liquid level meter 4 sends a control signal to the controller 1, and the controller 1 receives the control signal and controls the liquid level indicator light 12 to be turned on according to the interlock control logic, and at the same time, the interlock control closes the electric valve 2 to stop loading oil into the oil tank box 3.

[0024] In one or more embodiments, the liquid level meter 4 is disposed at the oil filling port on the top of the oil tank 3 .

[0025] In one or more embodiments, the crude oil loading system 100 of the present invention further includes a return plate 7 connected to the controller 1 for placing the electrostatic grounding clamp 11 when no oil is loaded.

[0026] In one or more embodiments, the crude oil loading system 100 described in the utility model further includes a power supply 8 connected to the controller 1 , and the power supply 8 is used to supply power to the controller 1 .

[0027] In one or more embodiments, the liquid level indicator light 12 is disposed on the controller 1 to facilitate observation by the staff.

[0028] In one or more embodiments, the crude oil loading system 100 of the utility model further includes a static electricity indicator light 13 connected to the controller 1, for indicating whether the static electricity during the oil loading operation is in a normal release state or a release interruption state.

[0029] When the connection between the electrostatic grounding clamp 11 and the oil tank box 3 is disconnected or the line contact is poor, the electrostatic grounding clamp 11 sends a control signal to the controller 1. The controller 1 receives the control signal and controls the electrostatic indicator light 13 to light up (for example, a red light) according to the interlocking control logic, and at the same time controls the closing of the electric valve 2 to stop filling oil into the oil tank box 3.

[0030] In one or more embodiments, the crude oil loading system 100 described in the utility model further includes an audible and visual alarm 9 connected to the controller 1, which is used to alarm when the liquid level reaches a set value or the static electricity is in a release interruption state. For example, when the connection between the static grounding clamp 11 and the oil tank box 3 is detached or the line contact is poor, the static grounding clamp 11 sends a control signal to the controller 1, the controller 1 receives the control signal, and controls the static indicator light 13 to light up according to the interlocking control logic, and also controls the sound and light alarm 9 to turn on according to the interlocking control logic, and at the same time controls the electric valve 2 to stop filling the oil tank box 3. When the crude oil in the oil tank box 3 is immersed in the liquid level meter 4, the liquid level meter 4 sends a control signal to the controller 1, the controller 1 receives the control signal, and controls the liquid level indicator light 12 to turn on according to the interlocking control logic, and also controls the sound and light alarm 9 to turn on according to the interlocking control logic, and at the same time controls the electric valve 2 to close to stop filling the oil tank box 3.

[0031] In one or more embodiments, the crude oil loading system 100 described in the utility model also includes a field grounding 10 and a grounding resistance display 14, both of which are connected to the controller 1. The field grounding 10 is used to provide good grounding and a grounding resistance value that meets the requirements for the oil loading operation. The grounding resistance display 14 is located on the controller and is used to display the grounding resistance value of the loading system in real time. When the grounding resistance display 14 displays a value greater than 4 ohms during the oil loading process, the controller 1 can control the electric valve 2 to close according to the interlocking control logic to stop loading oil into the oil tank box 3. In addition, since the electrostatic grounding clamp 11 is connected to both the controller 1 and the oil tank box 3, the static electricity generated during the oil loading process of the oil tank box 3 can be introduced into the ground through the field grounding 10 to achieve effective release.

[0032] In one or more embodiments, the crude oil loading system 100 described in the utility model further includes a grounding resistance alarm indicator light 15 connected to the controller 1, which is used to indicate whether the grounding resistance value exceeds a preset value; further includes a grounding resistance normal indicator light 16 connected to the controller 1, which is used to indicate whether the grounding resistance value is within a preset value range; further includes a grounding clamp classified indicator light 17 connected to the controller 1, which is used to indicate whether the electrostatic grounding clamp 11 is placed on the homing plate 7; further includes a valve opening indicator light 18 connected to the controller 1, which is used to indicate the valve opening state; further includes a valve closing indicator light 19 connected to the controller 1, which is used to indicate the valve closing state. The resistance alarm indicator light 15, the grounding resistance normal indicator light 16, the grounding clamp classified indicator light 17, the valve opening indicator light 18 and the valve closing indicator light 19 are all arranged on the controller 1.

[0033] In one or more embodiments, the crude oil loading system 100 described in the utility model further includes a valve manual opening button 20 arranged on the controller 1 for manually opening the electric valve 2; and further includes a valve manual closing button 21 arranged on the controller 1 for manually closing the electric valve 2.

[0034] The following is an example of how to use the crude oil loading system 100 of the present invention.

[0035] During the loading process, first connect the electrostatic grounding clamp 11 to the oil tank box 3, then extend the liquid level meter 4 and the oil pipeline 5 into the set position of the oil tank box 3, and finally check the power supply status of the controller 1, and at the same time check that the liquid level indicator light 12 is green, the electrostatic indicator light 13 is green, the grounding resistance display instrument 14 shows that the resistance is below 4 ohms, the grounding resistance alarm indicator light 15 has no indication, the grounding resistance normal indicator light 16 is green, and the grounding clamp indicator light 17 is red. After all the checks, press the valve manual opening button 20. After the electric valve 2 is fully opened, the valve opening indicator light 18 is green, and then start to fill the oil tank box 3 with oil. When the liquid level in the oil tank box 3 reaches the set position, the liquid level meter 4 sends a signal to the controller 1, and the controller 1 starts the sound and light alarm 9 to alarm through the preset interlocking control logic, and closes the electric valve 2 to stop filling oil into the oil tank box 3; during the oil filling process, when the grounding resistance display instrument 14 displays a value greater than 4 ohms or the electrostatic grounding clamp 11 is disconnected from the oil tank box 3 or the line contact is poor, the controller 1 triggers the interlocking control logic, starts the sound and light alarm 9 to alarm, and closes the electric valve 2 to stop filling oil into the oil tank box 3.

[0036] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A crude oil loading system, characterized in that: It includes a controller, an electric valve connected to the controller, an electrostatic grounding clamp and a liquid level meter. The liquid level meter is arranged in an oil tank box. The oil tank box is connected to an oil pipeline. The electric valve is arranged on the oil pipeline. The electrostatic grounding clamp is connected to the oil tank box.

2. The crude oil loading system according to claim 1, characterized in that: It also includes a liquid level indicator light connected to the controller, which is used to indicate whether the liquid level in the oil tank is in a normal or overflowing state.

3. The crude oil loading system according to claim 1, characterized in that: The liquid level meter is arranged at the oil filling port on the top of the oil tank.

4. The crude oil loading system according to claim 1, characterized in that: It also includes a return plate connected to the controller, which is used to place the electrostatic grounding clamp when no oil is filled.

5. The crude oil loading system according to claim 1, characterized in that: Also included is a power supply connected to the controller.

6. The crude oil loading system according to claim 2, characterized in that: The liquid level indicator light is arranged on the controller.

7. The crude oil loading system according to claim 1, characterized in that: It also includes a static electricity indicator light connected to the controller, which is used to indicate whether the static electricity is in a normal release or interruption state during the oil filling operation.

8. The crude oil loading system according to claim 1, characterized in that: It also includes an audible and visual alarm connected to the controller, which is used to give an alarm when the liquid level reaches a set value or the static electricity is in a release interruption state.

9. The crude oil loading system according to claim 1, characterized in that: It also includes a field grounding and a grounding resistance display which are both connected to the controller. The field grounding is used to provide grounding and grounding resistance for the oil loading operation, and the grounding resistance display is used to display the grounding resistance value of the loading system in real time.

10. The crude oil loading system according to claim 1, characterized in that: It also includes a valve manual opening button arranged on the controller, which is used to manually open the electric valve.

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