Vacuum sampling system of oil product management ecosystem equipment

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By designing a vacuum sampling system in the oil management ecosystem equipment and using vacuum tanks and control devices to achieve high suction sampling, the problems of sampling difficulties and high manufacturing costs in the prior art are solved, and sampling efficiency and system balance are improved.

CN222364801UActive Publication Date: 2025-01-17NANJING JULI INTELLIGENT MFG TECH INST CO LTD +1

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Patent Information

Application Number: CN202420403244.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-03-01
Publication Date: 2025-01-17
Estimated Expiration: 2034-03-01

AI Technical Summary

Technical Problem

The existing oil management ecosystem equipment sampling system is designed independently, resulting in high manufacturing costs and is difficult to install in pit environments. The traditional sampling pump has poor self-priming ability and cannot effectively absorb oil in the negative pressure oil tank. The vacuum degree will hold the low vacuum oil circuit and make sampling difficult.

Method used

A vacuum sampling system equipped with an oil product management ecosystem is designed, including vacuum tanks, sampling pipelines, vacuum pipelines and control devices. It is connected to the external oil tank through the vacuum tank, and the oil suction and discharge is monitored by a vacuum pump and liquid level sensor to realize the High suction range sampling and operation through the control device balance system.

Benefits of technology

High suction range sampling with a height difference of 3m or more is achieved, sampling efficiency is improved, sampling difficulties caused by imbalance in vacuum degree is avoided, and the smooth operation of the system and the compactness of the equipment is ensured.

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Abstract

The utility model discloses an oil product management ecosystem equipment vacuum sampling system, the vacuum sampling system is attached in the oil product management ecosystem, the oil product management ecosystem comprises a negative pressure oil tank, a centrifugal machine and a centrifugal oil conveying pipeline of the centrifugal machine, the centrifugal oil conveying pipeline is connected with an external oil tank in a matching manner, and the vacuum sampling system comprises a vacuum tank, the vacuum tank is communicated with an external oil tank through a sampling oil conveying pipeline, and an oil product in the external oil tank can enter the vacuum tank through the sampling oil conveying pipeline; the sampling pipeline is respectively communicated with the vacuum tank and the external oil tank, and the oil product in the vacuum tank can be sampled and analyzed through the sampling pipeline and returns to the external oil tank through the sampling pipeline; the vacuum pipeline is communicated with the vacuum tank, and the vacuum pipeline is provided with a vacuum pump. By adopting the vacuum sampling system disclosed by the invention, high-suction-height sampling work with the height difference of 3m and above 3m can be conveniently realized, the sampling efficiency is improved, and the vacuum sampling system can adapt to sampling requirements under various conditions.

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Description

Technical Field

[0001] The utility model relates to the technical field of oil purifiers, in particular to a vacuum sampling system for oil product management ecosystem equipment. Background Art

[0002] The oil management ecosystem equipment (oil purifier) includes an oil purification system and a sampling system. The sampling system of the oil purifier mainly extracts the oil inside the negative pressure tank through a sampling pump, and uses sensors to analyze and detect the cleanliness level and moisture content of the oil; the oil purification system of the oil purifier is mainly used to filter solid impurities, moisture and gas in the oil to improve the oil quality.

[0003] The existing sampling system and oil purification system are designed independently and decentralized, which makes the manufacturing cost of the oil purifier high. At present, many gas stations are in pits. Due to the limitation of installation space, our oil management ecosystem equipment cannot be placed in the pit. In addition, the height difference between the pit and the oil inlet of the oil product integrated machine in the existing technology is about 3m. The suction range of the oil pump for sampling the oil analysis sensor is very small, and it is impossible to suck oil from the pit to the sensor. At the same time, due to the poor self-priming ability of the conventional sampling pump and the negative pressure state of the oil in the negative pressure tank, it is difficult to suck the oil in the negative pressure tank when starting. Utility Model Content

[0004] The utility model aims to provide a vacuum sampling system for oil management ecosystem equipment, so as to meet the needs of high suction range sampling analysis and avoid the problem that the high vacuum degree generated by the centrifuge when working will block the low vacuum degree oil circuit in other sampling oil circuits, causing sampling difficulties.

[0005] To achieve the above-mentioned purpose, the utility model provides a vacuum sampling system for oil management ecosystem equipment, wherein the vacuum sampling system is attached to the oil management ecosystem, wherein the oil management ecosystem comprises a negative pressure oil tank, a centrifuge and a centrifugal oil delivery pipeline of the centrifuge, wherein the centrifugal oil delivery pipeline is connected with an external oil tank, and the vacuum sampling system comprises:

[0006] A vacuum tank, the vacuum tank is connected to the external oil tank through a sampling oil pipeline, and the oil in the external oil tank can enter the vacuum tank through the sampling oil pipeline;

[0007] A sampling pipeline, the sampling pipeline is respectively connected to the vacuum tank and the external oil tank, and the oil in the vacuum tank can be sampled and analyzed through the sampling pipeline and returned to the external oil tank through the sampling pipeline;

[0008] A vacuum pipeline is connected to the vacuum tank and is provided with a vacuum pump.

[0009] As a preferred embodiment of the present application, it also includes a sampling detection component, which includes a first oil analysis sensor connected to the vacuum tank and a second oil analysis sensor arranged on the sampling pipeline.

[0010] As a preferred embodiment of the present application, a coarse filter, a first control valve and a sampling pump are also provided on the sampling pipeline. Along the flow direction of the oil, the coarse filter, the first control valve, the sampling pump and the second oil analysis sensor are arranged in sequence.

[0011] As a preferred embodiment of the present application, the vacuum tank is also connected to a liquid level sensor and a vacuum sensor; the liquid level sensor can monitor the oil level height inside the vacuum tank, and the vacuum sensor can monitor the vacuum degree inside the vacuum tank.

[0012] As a preferred embodiment of the present application, a second control valve is further provided on the vacuum pipeline, and the second control valve can control the on-off of the vacuum pipeline.

[0013] As a preferred embodiment of the present application, the second control valve adopts an air-locking electric ball valve.

[0014] As a preferred embodiment of the present application, an oil delivery branch is provided at one end of the centrifugal oil delivery pipeline connected to the external oil tank, and one end of the sampling oil delivery pipeline is connected to the vacuum tank and the other end is connected to the oil delivery branch.

[0015] As a preferred embodiment of the present application, one end of the sampling oil pipeline is connected to the vacuum tank, and the other end is connected to the external oil tank.

[0016] As a preferred embodiment of the present application, a check valve is provided on the sampling oil pipeline.

[0017] As a preferred embodiment of the present application, it also includes a control device, which is respectively connected to the first oil analysis sensor, the second oil analysis sensor, the first control valve, the second control valve, the liquid level sensor, the vacuum sensor, the sampling pump and the vacuum pump.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0019] 1. In the above scheme, the vacuum sampling system in this application is used to conveniently realize high suction sampling work with a height difference of 3m and above, improve sampling efficiency and adapt to sampling needs in various situations.

[0020] 2. In the above scheme, the vacuum tank and the negative pressure oil tank are independent of each other, and the sampling oil pipeline is preferably also independent of the centrifugal oil pipeline of the centrifuge negative pressure oil tank, so as to avoid the problem that the high vacuum degree generated by the centrifuge during operation will suffocate the low vacuum degree oil circuit in the other sampling oil circuit, causing sampling difficulties, thereby ensuring the balance between the sampling system and the purification system and ensuring the smooth operation of the two systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a structural schematic diagram of a vacuum sampling system in an example;

[0023] List of parts and reference numerals:

[0024] 1 external fuel tank;

[0025] 2 vacuum tanks;

[0026] 3. Sampling pipeline;

[0027] 4 sampling oil pipeline, 41 coarse filter, 42 first control valve, 43 sampling pump;

[0028] 5 vacuum pipeline, 51 vacuum pump;

[0029] 61 a first oil product analysis sensor, 62 a second oil product analysis sensor;

[0030] 71 liquid level sensor, 72 vacuum sensor;

[0031] 8 Second control valve. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0033] It should be noted that many specific details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific implementation methods disclosed below.

[0034] like Figure 1As shown, the present application discloses a vacuum sampling system for oil management ecosystem equipment, which is attached to the oil management ecosystem, i.e., the oil purifier. Conventional oil management ecosystem, i.e., the oil purifier, usually includes a negative pressure oil tank, a centrifuge, and a centrifugal oil pipeline of the centrifuge, and the centrifugal oil pipeline is connected to the external oil tank 1. In one example, refer to Figure 1 As shown, the vacuum sampling system in the present application includes: a vacuum tank 2, which is connected to the external oil tank 1 through a sampling oil pipeline 4, and the oil in the external oil tank 1 can enter the vacuum tank 2 through the sampling oil pipeline 4; a sampling pipeline 3, which is respectively connected to the vacuum tank 2 and the external oil tank 1, and the oil in the vacuum tank 2 can be sampled and analyzed through the sampling pipeline 3 and returned to the external oil tank 1 through the sampling pipeline 3; a vacuum pipeline 5, which is connected to the vacuum tank 2, and the vacuum pipeline 5 is provided with a vacuum pump 51.

[0035] In the above sampling scheme, according to Boyle's quantitative formula: PV = constant, P-pressure, V-volume of top gas, when the oil in the vacuum tank 2 is pumped away by the sampling pump 43, the volume of the top gas in the tank V becomes larger and larger. According to the formula of PV = constant, the pressure in the tank will become smaller and smaller, and the vacuum degree (relative to the atmospheric pressure) will become larger and larger. As the sampling pump 43 operates to extract the oil in the vacuum tank 2, the liquid level drops, and the negative pressure in the tank becomes larger and larger. As long as the negative pressure in the tank P0-ρgH>Pv (ρ-oil density, Pv-negative pressure value inside the vacuum tank 2, g-gravitational acceleration, H-sampling liquid level difference, P0-atmospheric pressure), the atmospheric pressure will hydraulically pour the oil in the external oil tank 1 in the pit into the vacuum tank 2 inside the integrated machine. The vacuum sampling system using the above structure can conveniently realize high suction sampling work with a height difference of 3m or more, improve sampling efficiency and meet the sampling needs in various situations.

[0036] Further, continue to refer to Figure 1 As shown, the vacuum sampling system in the present application also includes a sampling detection component, which includes a first oil analysis sensor 61 connected to the vacuum tank 2 and a second oil analysis sensor 62 arranged on the sampling pipeline 3; a coarse filter 41, a first control valve 42 and a sampling pump 43 are also arranged on the sampling pipeline 3, and as a preferred embodiment of the present application, the coarse filter 41, the first control valve 42, the sampling pump 43 and the second oil analysis sensor 62 are arranged in sequence along the oil flow direction.

[0037] As a preferred embodiment of the present application, refer to Figure 1 As shown, the vacuum tank 2 is also connected to a liquid level sensor 71 and a vacuum sensor 72; the liquid level sensor 71 can monitor the oil level height inside the vacuum tank 2, and the vacuum sensor 72 can monitor the vacuum degree inside the vacuum tank 2. Figure 1The vacuum pipe 5 is also provided with a second control valve 8, which can control the on and off of the vacuum pipe 5. Preferably, the second control valve 8 is an air-locking electric ball valve.

[0038] It should be noted here that the present application does not specifically limit the connection method between the sampling oil pipeline 4 and the external oil tank 1. In one example, one end of the centrifugal oil pipeline connected to the external oil tank 1 is provided with an oil branch, and one end of the sampling oil pipeline 4 is connected to the vacuum tank 2 and the other end is connected to the oil branch. In another preferred example, one end of the sampling oil pipeline 4 is connected to the vacuum tank 2, and the other end is connected to the external oil tank 1.

[0039] As a preferred embodiment of the present application, a check valve is provided on the sampling oil pipeline 4. The setting of the check valve can prevent the oil from flowing back through the sampling oil pipeline 4 when the vacuum pump 51 fails or other problems occur, thereby preventing the oil flow in other pipelines from being affected, which is conducive to ensuring the smooth operation of the entire oil ecological management system.

[0040] As a preferred embodiment of the present application, a control device is also included, which is respectively connected to the first oil analysis sensor 61, the second oil analysis sensor 62, the first control valve 42, the second control valve 8, the liquid level sensor 71, the vacuum sensor 72, the sampling pump 43 and the vacuum pump 51. In the above scheme, the setting of the control device can greatly improve the automation of sampling and analysis of the entire oil ecological management system, further improve the sampling efficiency, and facilitate the relevant production personnel to grasp the operating status of the entire production equipment in a timely manner.

[0041] In the actual application process, at the beginning, the second control valve 8 is opened, and the vacuum pump 51 sucks the oil in the external oil tank 1 in the pit into the vacuum tank 2. When the liquid level reaches the high position of the liquid level sensor 71, the control device controls the vacuum pump 51 to stop working and the second control valve 8 is closed; then the sampling pump 43 is started to pump the oil from the vacuum tank 2 back to the external oil tank 1 in the pit, the oil level in the vacuum tank 2 will decrease, and a vacuum will be formed in the vacuum tank 2. When the vacuum degree reaches a certain value, the oil will enter the vacuum tank 2 along the sampling oil pipeline 4; when the sampling pump 43 discharges the oil and the suction pipeline oil reaches When the balance is reached, the liquid level of the vacuum tank 2 will not drop; the oil passes through the first oil product analysis sensor and the second oil product analysis sensor, and the quality of the lubricating oil can be analyzed; when working for a long time, the gas separated from the oil reaches a certain amount, and the liquid level in the vacuum tank 2 drops to the lower limit of the liquid level sensor 71, the control device will start the vacuum pump 51 to extract the gas from the vacuum tank 2 to increase the vacuum degree in the vacuum tank 2 and transport the oil to the vacuum tank 2 through the sampling oil pipeline. When the oil level in the vacuum tank 2 reaches the upper limit, the control device will control the vacuum pump 51 to stop working.

[0042] In addition, since the flow rate of the sampling pump 43 is relatively small, the design volume of the vacuum tank 2 is relatively small. A slight drop in the liquid level in the vacuum tank 2 can meet the demand for automatic oil replenishment. The volume of the entire vacuum tank 2 is mainly considered from the internal space of the integrated machine, the installation space of the sensor and the pressure gauge. In this way, the installation space inside the integrated machine can be fully utilized, making the structure of the entire oil product ecological management system integrated machine more compact, which is conducive to the miniaturization of the equipment.

[0043] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. An oil management ecosystem is equipped with a vacuum sampling system, wherein the vacuum sampling system is attached to the oil management ecosystem, wherein the oil management ecosystem comprises a negative pressure oil tank, a centrifuge and a centrifugal oil pipeline of the centrifuge, wherein the centrifugal oil pipeline is connected to an external oil tank, and wherein: The vacuum sampling system comprises: A vacuum tank, the vacuum tank is connected to the external oil tank through a sampling oil pipeline, and the oil in the external oil tank can enter the vacuum tank through the sampling oil pipeline; A sampling pipeline, the sampling pipeline is respectively connected to the vacuum tank and the external oil tank, and the oil in the vacuum tank can be sampled and analyzed through the sampling pipeline and returned to the external oil tank through the sampling pipeline; A vacuum pipeline is connected to the vacuum tank and is provided with a vacuum pump.

2. The vacuum sampling system for oil management ecosystem equipment according to claim 1, characterized in that: It also includes a sampling detection component, which includes a first oil product analysis sensor connected to the vacuum tank and a second oil product analysis sensor arranged on the sampling pipeline.

3. The vacuum sampling system for oil management ecosystem equipment according to claim 2, characterized in that: The sampling pipeline is also provided with a coarse filter, a first control valve and a sampling pump. Along the flow direction of the oil product, the coarse filter, the first control valve, the sampling pump and the second oil product analysis sensor are arranged in sequence.

4. The vacuum sampling system for oil management ecosystem equipment according to claim 3, characterized in that: The vacuum tank is also connected to a liquid level sensor and a vacuum sensor; the liquid level sensor can monitor the oil level height inside the vacuum tank, and the vacuum sensor can monitor the vacuum degree inside the vacuum tank.

5. The vacuum sampling system for oil management ecosystem equipment according to claim 4, characterized in that: The vacuum pipeline is also provided with a second control valve, and the second control valve can control the on and off of the vacuum pipeline.

6. The vacuum sampling system for oil management ecosystem equipment according to claim 5, characterized in that: The second control valve is an air-locking electric ball valve.

7. The vacuum sampling system for oil management ecosystem equipment according to claim 5, characterized in that: An oil delivery branch is arranged at one end of the centrifugal oil delivery pipeline connected to the external oil tank, and one end of the sampling oil delivery pipeline is connected to the vacuum tank and the other end is connected to the oil delivery branch.

8. The vacuum sampling system for oil management ecosystem equipment according to claim 5, characterized in that: One end of the sampling oil delivery pipeline is connected to the vacuum tank, and the other end is connected to the external oil tank.

9. The vacuum sampling system for oil management ecosystem equipment according to any one of claims 7 or 8, characterized in that: A check valve is arranged on the sampling oil pipeline.

10. The vacuum sampling system for oil management ecosystem equipment according to claim 9, characterized in that: It also includes a control device, which is respectively connected to the first oil analysis sensor, the second oil analysis sensor, the first control valve, the second control valve, the liquid level sensor, the vacuum sensor, the sampling pump and the vacuum pump.