Oil-liquid separation device for highway unloading gas

Abstract

The utility model provides an oil-liquid separation device for highway oil unloading, relates to the technical field of highway oil unloading, and solves the problems that the existing pump filling process for highway oil unloading is high in manufacturing cost, complex in process, incomplete in exhaust and incapable of accurately judging whether pump filling is completed or not. The device comprises a first automatic reset valve and a barrel, the upper end of the first automatic reset valve is connected with one end of a three-way pipeline, the two ends of the three-way pipeline are connected with a second automatic reset valve and a third automatic reset valve respectively, and a first sight cup sight glass is connected between the second automatic reset valve and the upper portion of the side wall of the barrel. A second view cup sight glass is connected between the third automatic reset valve and the lower end of the barrel, an exhaust pipe is connected to the upper end of the barrel, a separation silk screen is arranged on the upper portion in the barrel, and a liquid level meter is installed on the front face of the outer wall of the barrel. The utility model has the beneficial effects that the pipeline gas can be effectively exhausted, the pump can be effectively filled, the structure is simple, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of highway oil unloading technology, specifically to a highway oil unloading gas-liquid separation device. Background Technology

[0002] The process of unloading oil at a refined oil depot on highways generally uses a pipeline centrifugal pump as the unloading pump. Before the centrifugal pump unloading operation, a priming process is required. Traditional processes use a vacuum system or pressure venting (gravity venting) method. Most processes will install an oil-blocking venting valve to vent pipeline gas, thereby playing the role of priming the pump.

[0003] The problems with existing technology are:

[0004] Vacuum systems: are expensive, require a large floor space for modification, and have complex processes.

[0005] Gravity venting or pressure venting: time-consuming and incomplete venting, making it impossible to accurately determine whether priming (venting) has been completed.

[0006] Oil-blocking exhaust valve: 1. During the exhaust process, the ball suddenly rises and blocks the exhaust port, stopping the exhaust. Many float-type exhaust valves have the problem that when the air pressure in the pipeline is high or the airflow carries oil, the large exhaust port will suddenly rise and stop the exhaust.

[0007] 2. When the small exhaust port float ball is not activated for a long period of time during operation, it is prone to failure due to sticking.

[0008] 3. During the next operation after oil unloading, the float ball at the large exhaust port is prone to leakage due to improper repositioning, which can lead to losses in future maintenance and management. Utility Model Content

[0009] The purpose of this invention is to solve the problems of high cost, complex process, incomplete venting, inability to accurately determine whether priming has been completed, and risk of misoperation in the existing pumping process for unloading oil on highways.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A gas-liquid separation device for highway unloading oil is characterized by comprising: a first automatic reset valve installed on the upper end of a pre-pump filter of an unloading pump; a cylinder located above the pre-pump filter; one end of a three-way pipeline connected to the upper end of the first automatic reset valve; a second automatic reset valve and a third automatic reset valve respectively connected to the two ends of the three-way pipeline; a first sight glass connected between the second automatic reset valve and the upper part of the side wall of the cylinder; a second sight glass connected between the third automatic reset valve and the lower end of the cylinder; an exhaust pipe connected to the upper end of the cylinder; a separation wire mesh installed in the upper part of the cylinder; and a level gauge installed on the front of the outer wall of the cylinder.

[0012] A further improvement is that the tee pipe is a DN15 tee pipe.

[0013] A further improvement is that a support is provided at the lower end of the cylinder.

[0014] A further improvement is that the separating wire mesh is installed at four-fifths of the cylinder body.

[0015] A further improvement is that the level gauge is a glass tube U-shaped level gauge.

[0016] A further improvement is that the first, second, and third automatic reset valves are spring-loaded automatic reset valves.

[0017] A further improvement is that a flow meter is connected between the unloading pump and the pre-pump filter.

[0018] A further improvement is that an exhaust valve is installed on the exhaust pipe.

[0019] Compared with existing technologies, the above technical solution has the following advantages:

[0020] It can effectively discharge pipeline gas, effectively fill the pump, has a simple structure, is easy to operate, and can be operated manually. There are no automated devices in the equipment, which reduces the possibility of operation termination due to automation failure. The equipment has no non-fixed parts such as floats, which avoids the failure of float adhesion and the inability to fill the pump on site.

[0021] Exhaust and oil drainage operations are carried out by two hands to reduce the risk of leakage caused by misoperation; there is no open flow operation throughout the process to reduce risk. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a structural diagram of the present invention in relation to the unloading pump and the pre-pump filter.

[0025] Explanation of reference numerals in the attached drawings: 1. Unloading pump; 2. Flow meter; 3. Pre-pump filter; 4. First automatic reset valve; 5. Three-way pipeline; 6. Second automatic reset valve; 7. First sight glass; 8. Third automatic reset valve; 9. Second sight glass; 10. Cylinder; 11. Exhaust pipe; 12. Separating wire mesh; 13. Level gauge; 14. Support. Detailed Implementation

[0026] See Figures 1-2 As shown, the technical solution adopted in this specific embodiment is: a highway unloading gas-liquid separation device, including a first automatic reset valve 4 installed on the upper end of the pre-pump filter 3 of the unloading pump 1, and a cylinder 10 located above the pre-pump filter 3. The upper end of the first automatic reset valve 4 is connected to one end of a three-way pipeline 5. The two ends of the three-way pipeline 5 are respectively connected to a second automatic reset valve 6 and a third automatic reset valve 8. A first sight glass 7 is connected between the second automatic reset valve 6 and the upper part of the side wall of the cylinder 10. A second sight glass 9 is connected between the third automatic reset valve 8 and the lower end of the cylinder 10. An exhaust pipe 11 is connected to the upper end of the cylinder 10. A separation wire mesh 12 is provided in the upper part of the cylinder 10. A liquid level gauge 13 is installed on the front of the outer wall of the cylinder 10.

[0027] The tee pipe 5 is a DN15 tee pipe.

[0028] A support 14 is provided at the lower end of the cylinder 10.

[0029] The separating wire mesh 12 is installed at four-fifths of the inside of the cylinder 10.

[0030] The level gauge 13 is a glass tube U-shaped level gauge.

[0031] Among them, the first automatic reset valve 4, the second automatic reset valve 6, and the third automatic reset valve 8 are spring automatic reset valves.

[0032] A flow meter 2 is connected between the unloading pump 1 and the pre-pump filter 3.

[0033] An exhaust valve is provided on the exhaust pipe 11.

[0034] The working principle of this utility model is as follows: Before unloading oil, connect both ends of the unloading hose to the vehicle and the unloading port, open the inlet valve of the unloading port, open the first automatic reset valve and the second automatic reset valve, observe the situation inside the first sight glass tube and the liquid level in the cylinder. The liquid level in the cylinder is obtained by observing the liquid level gauge. Separate the gas and liquid through the separating wire mesh, and exhaust the gas through the exhaust pipe. When the liquid in the first sight glass is full and the liquid level in the cylinder reaches 1 / 2, it is considered that the gas in the pipeline has been exhausted, achieving the pump filling effect. Then, restore the first and second automatic reset valves, start the unloading pump to start the unloading operation, and after the unloading pump is working stably, open the first and third automatic reset valves, observe the second sight glass and the liquid level in the cylinder, and when the second sight glass is empty and the liquid level in the cylinder is zero, it is considered that the liquid in the cylinder has been exhausted, and close the first and third automatic reset valves.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A gas-liquid separation device for highway unloading oil, characterized in that: The device includes a first automatic reset valve installed on the upper end of the pre-pump filter of the unloading pump, and a cylinder located above the pre-pump filter. The upper end of the first automatic reset valve is connected to one end of a three-way pipeline. The two ends of the three-way pipeline are respectively connected to a second automatic reset valve and a third automatic reset valve. A first sight glass is connected between the second automatic reset valve and the upper part of the side wall of the cylinder. A second sight glass is connected between the third automatic reset valve and the lower end of the cylinder. An exhaust pipe is connected to the upper end of the cylinder. A separation wire mesh is installed in the upper part of the cylinder. A level gauge is installed on the front of the outer wall of the cylinder.

2. The gas-liquid separation device for highway unloading according to claim 1, characterized in that: The tee pipe is a DN15 tee pipe.

3. The gas-liquid separation device for highway unloading according to claim 1, characterized in that: A support is provided at the lower end of the cylinder.

4. The highway unloading gas-liquid separation device according to claim 1, characterized in that: The separating wire mesh is installed in four-fifths of the cylinder.

5. A highway unloading gas-liquid separator according to claim 1, characterized in that: The level gauge is a glass tube U-shaped level gauge.

6. A highway unloading gas-liquid separator according to claim 1, characterized in that: The first automatic reset valve, the second automatic reset valve, and the third automatic reset valve are spring-loaded automatic reset valves.

7. A highway unloading gas-liquid separator according to claim 1, characterized in that: A flow meter is connected between the unloading pump and the pre-pump filter.

8. A highway unloading gas-liquid separator according to claim 1, characterized in that: An exhaust valve is installed on the exhaust pipe.

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