A periodically self-lubricating scraper flow meter

Abstract

This invention discloses a periodically self-lubricating scraper flow meter. Firstly, it utilizes a lubricating bearing to lubricate the magnetic scraper, improving its rotational efficiency. Secondly, it uses a first and second spray hood to spray lubricating oil, further lubricating the bearing and enhancing its rotational performance. Then, guided by a first guide cavity, the lubricating oil enters the second guide cavity. When the oil pressure exceeds the original upper limit of the pressure valve, the lubricating oil is easily supplied to the inner wall of the housing, achieving lubrication of the contact surface between the magnetic scraper and the inner wall of the housing, effectively reducing friction and improving rotational efficiency. Finally, a timer allows operators to preset the time; when the set time is reached, the supply pump is triggered, thus facilitating timed lubrication.

Description

Technical Field

[0001] This invention relates to the field of flow meter technology, and more particularly to a periodically self-lubricating scraper flow meter. Background Technology

[0002] Scraper flow meters are mainly used for continuous or intermittent precision measurement of the flow rate of liquids in pipelines. They are widely used in petroleum, chemical, light industry, transportation, commerce and other sectors, and are particularly suitable for measuring the flow rate of crude oil, residual oil, refined oil, light hydrocarbons and other media in the transfer and trade settlement.

[0003] Based on the above, the existing scraper flow meter technology uses a bearing and shaft connection, which, while providing high rotational performance, lacks regular active lubrication. Operators need to add lubricating oil periodically. Furthermore, because the contact surface between the inner wall of the housing and the scraper is completely enclosed, manual lubrication after removal is impossible. With prolonged use, the scraper will wear rapidly due to continuous high-intensity friction, leading to liquid leakage and ultimately affecting the accuracy of the measurement. Therefore, considering these shortcomings, it is necessary to design a scraper flow meter with periodic self-lubrication. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a periodically self-lubricating scraper flow meter to address the problems raised in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a periodically self-lubricating scraper flow meter, comprising a housing, a first electromagnetic sensor, a second electromagnetic sensor, a magnetic scraper, a first flow guiding cavity, a second flow guiding cavity, a pressure valve, a lubricating bearing, a front cover, a timer, a feed pump, a first spray hood, a connecting pipe, and a second spray hood. The first electromagnetic sensor is fixedly disposed inside the housing on the upper left side and is thermally fused to the housing. The second electromagnetic sensor is fixedly disposed inside the housing on the upper right side and is thermally fused to the housing. The magnetic scraper is located inside the housing and is rotatably connected to the housing. The first flow guiding cavity is located in the middle of the magnetic scraper and is a tubular cavity that runs through the front and back. Several second flow guiding cavities surround the magnetic scraper. One end of each second flow guiding cavity is connected to the first flow guiding cavity, and the other end of the second flow guiding cavity is through. In this configuration, the pressure valve is fixed inside the second flow guide cavity, and the pressure valve and the second flow guide cavity are connected by heat fusion. The lubricating bearing is fixed at both ends of the outer wall of the magnetic scraper, and the lubricating bearing and the magnetic scraper are tightly fitted together. The lubricating bearing and the housing are also tightly fitted together. The front cover is fixed at the front end of the housing, and the front cover and the housing are connected by heat fusion. The timer is fixed at the upper front end of the front cover, and the timer and the front cover are bolted together. The feed pump is fixed inside the upper end of the front cover, and the feed pump and the front cover are connected by heat fusion. The feed pump and the timer are electrically connected. The first spray hood is fixed at the rear end of the feed pump, and the first spray hood and the feed pump are connected by heat fusion. The connecting pipe is located inside the first flow guide cavity, and there is a gap between the connecting pipe and the first flow guide cavity. The connecting pipe and the first spray hood are welded together. The second spray hood is fixed at the rear end of the connecting pipe, and the second spray hood and the connecting pipe are welded together.

[0006] Furthermore, external pipes are fixed on the left and right sides of the shell, and the external pipes are integrally formed with the shell.

[0007] Furthermore, a flow calculation and display module is also fixedly installed on the top of the housing. The flow calculation and display module is bolted to the housing and electrically connected to the first electromagnetic sensor and the second electromagnetic sensor respectively.

[0008] Furthermore, a rear cover is fixedly provided at the rear end of the housing. The rear cover is connected to the housing by heat fusion, and the rear cover is connected to the second spray hood by bolts.

[0009] Furthermore, a one-way valve is also fixedly installed at the port of the second flow guide cavity, and the one-way valve is connected to the second flow guide cavity by heat fusion.

[0010] Furthermore, an oil storage tank is fixedly installed on the lower front side of the front cover. The oil storage tank is bolted to the front cover, and the oil storage tank is connected to the supply pump via a pipeline.

[0011] Compared with existing technologies, this periodically self-lubricating scraper flow meter has the following advantages;

[0012] 1. First, by utilizing the lubricating bearing, the magnetic scraper is lubricated, thereby improving its rotation efficiency.

[0013] 2. Secondly, with the help of the first and second spray hoods, lubricating oil is sprayed to first lubricate the bearing and enhance its rotation. Then, with the guidance of the first guide cavity, the lubricating oil enters the second guide cavity. When the oil pressure exceeds the original upper limit of the pressure valve, the lubricating oil is easily input into the inner wall of the housing, realizing the lubrication of the contact surface between the magnetic scraper and the inner wall of the housing, effectively reducing the friction of the magnetic scraper and improving the rotation effect.

[0014] 3. Finally, the timer allows staff to preset the time, and when the set time is reached, it can trigger the feed pump to start, thus facilitating timed lubrication. Attached Figure Description

[0015] Figure 1 This is a front view of a periodically self-lubricating scraper flow meter;

[0016] Figure 2 This is a top view of a periodically self-lubricating scraper flow meter;

[0017] Figure 3 This is a 3D view of a periodically self-lubricating scraper flow meter;

[0018] Figure 4 This is a cross-sectional view along line A of a periodically self-lubricating scraper flow meter;

[0019] Figure 5 This is a cross-sectional view along direction B of a periodically self-lubricating scraper flow meter.

[0020] Housing 1, First electromagnetic sensor 2, Second electromagnetic sensor 3, Magnetic scraper 4, First flow guide cavity 5, Second flow guide cavity 6, Pressure valve 7, Lubricating bearing 8, Front cover 9, Timer 10, Feed pump 11, First spray hood 12, Connecting pipe 13, Second spray hood 14, External pipe 101, Flow calculation and display module 102, Rear cover 103, One-way valve 601, Oil storage tank 901.

[0021] The following detailed embodiments will be further explained in conjunction with the above-mentioned accompanying drawings. Detailed Implementation

[0022] In the following text, various specific details are set forth in order to provide a thorough understanding of the concepts that form the basis of the described embodiments. However, it will be apparent to those skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other cases, well-known processing steps are not specifically described.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a periodically self-lubricating scraper flow meter includes a housing 1, a first electromagnetic sensor 2, a second electromagnetic sensor 3, a magnetic scraper 4, a first guide cavity 5, a second guide cavity 6, a pressure valve 7, a lubricating bearing 8, a front cover 9, a timer 10, a feed pump 11, a first spray hood 12, a connecting pipe 13, a second spray hood 14, an external pipe 101, a flow calculation and display module 102, a rear cover 103, a one-way valve 601, and an oil storage tank 901.

[0024] In one embodiment, the magnetic scraper 4 can rotate under the drive of the flowing medium, which facilitates the magnetic scraper 4 entering the detection range of the first electromagnetic sensor 2 and the second electromagnetic sensor 3 during the rotation process, so that the first electromagnetic sensor 2 and the second electromagnetic sensor 3 can detect the magnetism of the magnetic scraper 4.

[0025] In one embodiment, the flow calculation and display module 102 can continuously receive detection signals from the first electromagnetic sensor 2 and the second electromagnetic sensor 3, and calculate the quantity based on the received signals, thereby facilitating the measurement of the medium flow rate.

[0026] In one embodiment, the lubricating bearing 8 is located at both ends of the magnetic scraper 4 to lubricate the magnetic scraper 4 and improve the rotation effect of the magnetic scraper 4.

[0027] In one embodiment, after the supply pump 11 is turned on, the lubricating oil inside the oil storage tank 901 can be input into the first spray hood 12, the connecting pipe 13 and the second spray hood 14. With the help of the first spray hood 12 and the second spray hood 4, the lubricating oil is sprayed to first lubricate the lubricating bearing 8 and enhance the rotation of the lubricating bearing 8. Then, with the guidance of the first guide cavity 5, the lubricating oil can enter the second guide cavity 6 from the first guide cavity 5. When the oil pressure exceeds the original upper limit of the pressure valve 7, the lubricating oil can be input into the inner wall of the housing through the one-way valve 601 to achieve the lubrication of the contact surface between the magnetic scraper 4 and the inner wall of the housing, effectively reduce the friction of the magnetic scraper 4 and improve the rotation effect.

[0028] In one embodiment, the timer 10 allows the operator to preset the time, and when the time is reached, it can trigger the feed pump 11 to start, thereby facilitating the purpose of timed lubrication.

[0029] Specifically, firstly, the external pipe 101 is connected to the pipe containing the medium to be detected. When the liquid medium enters or exits through the external pipe 101, it drives the magnetic scraper 4 inside the housing 1 to rotate continuously. The rotation of the magnetic scraper 4 allows the first electromagnetic sensor 2 and the second electromagnetic sensor 3 to perform magnetic detection, thus determining the number of rotations of the magnetic scraper 4. Since each rotation of the magnetic scraper 4 delivers an equal amount of liquid medium, the flow calculation and display module 102 calculates the number of rotations, thereby achieving the purpose of measuring the medium delivery. At the same time, the operator can preset the timer 10 for further processing. Timer 10 periodically switches the feed pump 11 on and off after a specified time. By turning on the feed pump 11, the lubricating fluid inside the oil tank 901 is input into the lubricating bearing 8 area to achieve lubrication. As the lubricating fluid is continuously supplied, the pressure increases. When the pressure exceeds the original pressure level of the pressure valve 7, the pressure valve 7 is triggered to open. This facilitates the delivery of lubricating fluid to the contact surface between the magnetic scraper 4 and the housing 1, reducing the friction between the magnetic scraper 4 and the housing 1. At the same time, due to the one-way guidance of the check valve 601, the backflow of the conveying medium inside the housing 1 into the second guide cavity 5 is also prevented. Ultimately, this ensures the detection and lubrication functions of the scraper flow meter.

[0030] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are within the scope of protection of this invention.

Claims

1. A periodically self-lubricating scraper flow meter, characterized in that... It includes a housing, a first electromagnetic sensor, a second electromagnetic sensor, a magnetic scraper, a first guide cavity, a second guide cavity, a pressure valve, a lubricating bearing, a front cover, a timer, a feed pump, a first spray hood, a connecting pipe, and a second spray hood; The first electromagnetic sensor is fixed inside the upper left side of the housing, and the first electromagnetic sensor is connected to the housing by thermal fusion. The second electromagnetic sensor is fixed inside the upper right side of the housing, and the second electromagnetic sensor is connected to the housing by thermal fusion. The magnetic scraper is located inside the housing, and the magnetic scraper is rotatably connected to the housing; The first flow guiding cavity is located in the middle of the magnetic scraper, and the first flow guiding cavity is a tubular cavity that runs through the front and back. The number of the second flow guiding cavities is several. The second flow guiding cavity surrounds the magnetic scraper. One end of the second flow guiding cavity is connected to the first flow guiding cavity, and the other end of the second flow guiding cavity is in a through state. The pressure valve is fixed inside the second guide cavity, and the pressure valve and the second guide cavity are connected by heat fusion; The lubricating bearing is fixed at both ends of the outer wall of the magnetic scraper. The lubricating bearing and the magnetic scraper are tightly connected, and the lubricating bearing and the housing are tightly connected. The front cover is fixed to the front end of the housing, and the front cover and the housing are connected by heat fusion; The timer is fixed to the upper front end of the front cover, and the timer is bolted to the front cover. The feed pump is fixed inside the upper part of the front cover. The feed pump and the front cover are connected by heat fusion, and the feed pump and the timer are electrically connected. The first spray hood is fixed to the rear end of the feed pump, and the first spray hood and the feed pump are connected by heat fusion. The connecting pipe is located inside the first flow guiding cavity, there is a gap between the connecting pipe and the first flow guiding cavity, and the connecting pipe is welded to the first spray hood; The second spray hood is fixed to the rear end of the connecting pipe, and the second spray hood and the connecting pipe are connected by welding; The lubricating bearings are located at both ends of the magnetic scraper to lubricate the magnetic scraper and improve its rotation efficiency. After the supply pump is turned on, lubricating oil can be input into the first spray hood, the connecting pipe and the second spray hood. With the help of the first spray hood and the second spray hood, the lubricating oil is sprayed to first lubricate the lubricating bearing and enhance its rotation. Then, with the guidance of the first guide cavity, the lubricating oil can enter the second guide cavity from the first guide cavity. When the oil pressure exceeds the original upper limit of the pressure valve, the lubricating oil can be input into the inner wall of the housing through the one-way valve to achieve lubrication of the contact surface between the magnetic scraper and the inner wall of the housing, effectively reduce the friction of the magnetic scraper and improve the rotation effect. The timer allows staff to preset the time, and when the set time is reached, it can trigger the feed pump to start, thus facilitating timed lubrication.

2. The periodically self-lubricating scraper flow meter as described in claim 1, characterized in that... External pipes are also fixed on the left and right sides of the shell, and the external pipes are integrally formed with the shell.

3. The periodically self-lubricating scraper flow meter as described in claim 1, characterized in that... The top of the housing is also fixed with a flow calculation and display module, which is bolted to the housing and electrically connected to the first electromagnetic sensor and the second electromagnetic sensor respectively.

4. A periodically self-lubricating scraper flow meter as described in claim 1, characterized in that... The rear end of the housing is also fixedly provided with a rear cover, which is connected to the housing by heat fusion, and the rear cover is connected to the second spray hood by bolts.

5. A periodically self-lubricating scraper flow meter as described in claim 1, characterized in that... The second flow guide cavity port is also fixedly provided with a one-way valve, and the one-way valve is connected to the second flow guide cavity by heat fusion.

6. A periodically self-lubricating scraper flow meter as described in claim 1, characterized in that... An oil storage tank is also fixedly installed on the lower front side of the front cover. The oil storage tank is bolted to the front cover and connected to the supply pump by a pipeline.

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