CN212931533U

CN212931533U - Gravity self-flow oil return metering device

Info

Publication number: CN212931533U
Application number: CN202021797579.6U
Authority: CN
Inventors: 蒋国良; 肖刚; 吴建国
Original assignee: Opw Petroleum Equipment Suzhou Co ltd
Current assignee: Opw Petroleum Equipment Suzhou Co ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-04-09
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a gravity oil return metering device that flows automatically, it includes first solenoid valve, gas outlet, vapour and liquid separator, second solenoid valve and flowmeter, first solenoid valve, gas outlet are linked together through a pipeline with vapour and liquid separator, second solenoid valve are linked together through a pipeline with the flowmeter, the pressure release mouth has on the first solenoid valve, the last air inlet that has of vapour and liquid separator, the oil-out has on the flowmeter. The gas-liquid separator separates liquid gasoline and gas, the liquid gasoline is discharged from the oil outlet and is measured by the flowmeter and then discharged into the oil tank, and the gas is discharged from the gas outlet. The utility model discloses a metering device has improved the precision of measurement.

Description

Gravity self-flow oil return metering device

Technical Field

The utility model belongs to the technical field of metering device technique and specifically relates to a gravity returns oil metering device that flows automatically.

Background

The tertiary oil gas recovery equipment of filling station can separate out a large amount of liquid oil at the operation in-process, and the recovery of this part oil not only has very big economic benefits to filling station, can provide the preliminary treatment support for the fine processing technology of equipment rear end moreover, guarantees the cleanliness factor of emission space. In order to further quantify the oil recovery amount and accurately calculate the actual benefit value of oil recovery, it is necessary to set a group of metering devices on the oil return pipeline at the bottom of the separator to realize real-time metering and cumulative metering of oil return metering. Since the oil and gas components of the suction device are not fixed during the operation of the tertiary recovery device, the amount of liquid oil separated in unit time is always changed. In order to improve the metering accuracy, the oil discharge pipeline at the bottom of the separator is cut off when the system operates, and after the system operates for a period and stops, the liquid oil accumulated in the separator is discharged and metered. In consideration of the particularity of the whole tertiary recovery device process and the economical efficiency of the whole device, the mode of remotely transmitting liquid level and controlling the liquid level height which is conventionally used in the industry is not suitable for the device, so a novel gravity flow by utilizing the self gravity of the liquid is developed through a series of tests and experiments, and the metering is realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a gravity returns oil metering device automatically, guarantee the accuracy of flowmeter measurement.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gravity flow oil return metering device, its includes first solenoid valve, second solenoid valve, vapour and liquid separator, gas outlet and flowmeter, first solenoid valve, gas outlet and vapour and liquid separator are linked together through a pipeline, flowmeter, second solenoid valve are linked together through a pipeline with vapour and liquid separator, the last pressure release mouth that has of first solenoid valve, the last air inlet that has of vapour and liquid separator, the last oil-out that has of flowmeter.

Preferably, the gas-liquid separator comprises an upper end surface and a lower end surface, a first connector is arranged on the upper end surface, and the first connector is communicated with the pipeline.

Preferably, a cylinder is arranged between the upper end face and the lower end face, a second connector is arranged at the lower end of the cylinder, and the second connector is communicated with the pipeline.

Preferably, a bracket is arranged between the column body and the lower end face.

Preferably, the pipeline comprises a first pipeline and a second pipeline, and an angle is formed between the first pipeline and the second pipeline.

Preferably, a height difference is formed between the second interface and the first pipeline.

The utility model has the advantages that: the utility model discloses a gravity returns oil metering device automatically, has realized the accurate measurement to the oil return.

Drawings

Fig. 1 is a schematic structural diagram of the gravity-fed oil return metering device of the present invention.

Reference numerals: 1. gravity flowing oil return metering device, 11, gas-liquid separator, 111, upper end face, 112, lower end face, 113, cylinder, 114, first interface, 115, air inlet, 116, support, 117, second interface, 12, pipeline, 121, air outlet, 13, first solenoid valve, 131, pressure relief port, 14, second solenoid valve, 15, flowmeter, 151, oil outlet, 16, pipeline, 161, first pipeline, 162, second pipeline.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

As shown in fig. 1, the utility model discloses a gravity flow return oil metering device 1, including vapour and liquid separator 11, pipeline 12, first solenoid valve 13, second solenoid valve 14, flowmeter 15 and pipeline 16 for measure the return oil.

The gas-liquid separator 11 includes an upper end surface 111 and a lower end surface 112, a column 113 is disposed between the upper end surface 111 and the lower end surface 112, the upper end surface 111 is provided with a first connector 114, and the first connector 114 is communicated with the pipeline 12, and is used for discharging separated gas to realize gas-liquid separation. The column 113 is connected with the upper end surface 111, an air inlet 115 is arranged on the column 113, oil gas enters the gas-liquid separator 11 from the air inlet 115, and the gas-liquid separator 11 separates the oil gas into liquid gasoline and gas.

Further, a bracket 116 is disposed between the column 113 and the lower end surface 112 for connecting the column 113 and the lower end surface 112, thereby achieving integral installation of the gas-liquid separator 11. The cylinder 113 is provided with a second port 117, and the second port 117 is connected with the pipeline 16 and is used for conveying the liquid gasoline to the flowmeter 15.

An air outlet 121 is arranged on the pipeline 12, and the first electromagnetic valve 13 is installed on the pipeline 12, so that the first electromagnetic valve 13, the air outlet 121 and the gas-liquid separator 11 are communicated through the pipeline 12. First solenoid valve 13 is used for controlling the pressure of whole device 1 to realize pressure balance, be equipped with a pressure release mouth 131 that is used for the pressure release on first solenoid valve 13, be the ordinary pressure in making whole device 1, prevent that gas mistake is gone into when the oil mass in the vapour and liquid separator 11 is less flowmeter 15, thereby influence the measurement accuracy.

The gas-liquid separator 11, the second electromagnetic valve 14 and the flow meter 15 are communicated through the pipeline 16, the flow meter 15 is provided with an oil outlet 151, the pipeline 16 comprises a first pipeline 161 and a second pipeline 162, an angle is formed between the first pipeline 161 and the second pipeline 162, and a height difference is formed between the second interface 117 and the first pipeline 161, so that the separated liquid gasoline flows to the flow meter 15 from high to low under the action of self gravity, and returns to an oil tank (not shown) after measurement, and after the liquid flows out, normal pressure gas in the pipeline 16 cannot flow into the flow meter due to self characteristics, so that the metering accuracy of the flow meter 15 is ensured.

The utility model discloses a gravity returns oil metering device 1's principle does: when the device 1 operates normally, the first electromagnetic valve 13 and the second electromagnetic valve 14 are in a closed state, oil gas enters the gas-liquid separator 11 from the gas inlet 115, the gas-liquid separator 11 separates liquid gasoline and gas, the liquid gasoline is accumulated at the bottom of the gas-liquid separator 11, and the gas is discharged from the gas outlet 121 and enters a rear-end processing device. When the whole device 1 reaches a set shutdown state, the device 1 stops running, at this time, the first electromagnetic valve 13 is opened, the pressure in the device 1 is discharged through the pressure relief port 131, after the pressure is relieved to normal pressure, the second electromagnetic valve 14 is opened, because of the height difference between the gas-liquid separator 11 and the pipeline 16, the liquid gasoline in the gas-liquid separator 11 flows to the flowmeter 15 and returns to the oil tank from high to low under the action of self gravity, and after the liquid flows out, the normal pressure gas in the pipeline 16 cannot flow into the flowmeter 15 due to self characteristics, so that the metering accuracy of the flowmeter 15 is ensured.

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.

Claims

1. The gravity-flow oil return metering device is characterized by comprising a first electromagnetic valve, an air outlet, a gas-liquid separator, a second electromagnetic valve and a flowmeter, wherein the first electromagnetic valve and the air outlet are communicated with the gas-liquid separator through a pipeline, the gas-liquid separator, the second electromagnetic valve and the flowmeter are communicated through a pipeline, a pressure relief opening is formed in the first electromagnetic valve, an air inlet is formed in the gas-liquid separator, and an oil outlet is formed in the flowmeter.

2. The gravity-fed oil return metering device of claim 1, wherein the gas-liquid separator comprises an upper end surface and a lower end surface, a first connector is arranged on the upper end surface, and the first connector is communicated with the pipeline.

3. The gravity fed oil return metering device of claim 2, wherein a cylinder is disposed between the upper end surface and the lower end surface, and a second port is disposed at the lower end of the cylinder and is communicated with the pipeline.

4. A gravity fed oil return metering device according to claim 3 wherein a stand is provided between said post and said lower end surface.

5. The gravity return flow metering device of claim 4, wherein the conduit comprises a first conduit and a second conduit, the first conduit and the second conduit forming an angle therebetween.

6. The gravity return flow metering device of claim 5, wherein a height difference is formed between the second port and the first conduit.