An oil sample collection and diversion control device

Abstract

This utility model relates to the technical field of products with collection and diversion functions, specifically disclosing an oil sample collection and diversion control device, including a diversion valve block, a diversion control valve, an oil storage container, a diversion pipeline, and a first collection connecting pipeline. The diversion valve block includes a collection inlet channel and multiple diversion channels respectively connected to the collection inlet channel. Each diversion channel is equipped with the diversion control valve. One end of the collection inlet channel is a collection inlet end connected to the first collection connecting pipeline. The diversion control valve is installed between the collection inlet end and the connecting diversion channels. The diversion channel is connected to the oil storage container through the diversion pipeline. The above module structure has collection and diversion functions and can be applied to realize fully enclosed automated oil sample collection operations.

Description

Technical Field

[0001] This utility model relates to the technical field of products with data collection and distribution functions. Background Technology

[0002] In daily operation and maintenance of transformers, it is necessary to regularly take oil samples for oil chromatographic testing and analysis. This sampling and testing is conducted frequently. Currently, there are several methods for oil sampling: 1. Traditional manual sampling: This method is risky, inefficient, labor-intensive, highly dependent on the experience of maintenance personnel, and prone to sample contamination, affecting analytical data. 2. Some substations are equipped with online oil chromatography devices. However, these devices have inherent errors, and offline sampling is required for confirmation after a minor gas alarm, necessitating manual emergency sampling, which poses a significant safety hazard to personnel. Manual sampling also suffers from the same inefficiency and contamination issues as mentioned in point 1. 3. A few automated solutions have been proposed. These solutions primarily simulate existing manual sampling processes, using mobile robots with robotic arms and actuators to automate oil sampling. However, this automated sampling method mimics manual methods and also suffers from low efficiency and sample contamination.

[0003] In summary, apart from the alternative solutions to the safety hazards of manual extraction, there are no effective ways to address the issues of operational efficiency and oil contamination in the existing oil extraction methods. Therefore, the person in charge of this utility model has dedicated himself to research and development, which led to the creation of this case. Utility Model Content

[0004] The purpose of this invention is to provide an oil sampling collection and diversion control device that has the function of collecting and diverting oil and can be applied to realize fully enclosed automated oil sampling operation.

[0005] To achieve the above objectives, the technical solution of this utility model is: an oil sample collection and diversion control device, comprising a diversion valve block, a diversion control valve, an oil storage container, a diversion pipeline, and a first collection connecting pipeline. The diversion valve block includes a collection oil inlet channel and multiple diversion channels respectively connected to the collection oil inlet channel. Each diversion channel is respectively provided with the diversion control valve. One end of the collection oil inlet channel is a collection oil inlet end connected to the first collection connecting pipeline. The collection oil inlet channel is provided with the diversion control valve between the collection oil inlet end and each diversion channel. The diversion channel is connected to the oil storage container through the diversion pipeline.

[0006] The diversion channel includes an oil sample diversion channel and an oil discharge channel, and the oil storage container connected to the oil sample diversion channel is a device with a venting structure.

[0007] The flow control valve of the oil sample diversion channel is designed to enable bidirectional flow control.

[0008] The diversion control valve is a 3-way solenoid valve and / or a 2-way solenoid valve. The diversion control valve on the oil sample diversion channel is set as two 3-way solenoid valves. The diversion control valves of the oil collection inlet channel and the oil outlet channel are each set as a 2-way solenoid valve.

[0009] The oil sample diversion channel is connected to an oil storage container that is a syringe-type oil sample test tube and is equipped with a test tube push-pull mechanism.

[0010] The test tube push-pull mechanism includes a drive motor, a lead screw and slider mechanism, a fixed plate, a guide connecting plate, a fixed block, and a connecting block. The drive motor and the lead screw and slider mechanism are installed on one side of the fixed plate. The lead screw end of the lead screw and slider mechanism is connected to the output shaft of the drive motor. The fixed block is fixedly installed on the other side of the fixed plate and has a fixing structure that can fix the syringe-type oil sample test tube. The connecting block is connected to the slider on the lead screw and slider mechanism through the guide connecting plate. The connecting block is provided with a clamping structure that can clamp the outer end of the pull rod of the syringe-type oil sample test tube.

[0011] It also includes an external connection component. The end of the first current collection and connection pipeline is provided with a first connection end. The external connection component is a plurality of second current collection and connection pipelines. The end of the second current collection and connection pipeline is provided with a second connection end for connecting with the first connection end.

[0012] It also includes an external module, which includes a manifold valve block, an oil production pipeline, a manifold control valve, and a second manifold connecting pipeline. The manifold valve block includes a manifold oil outlet channel and multiple oil production channels that are respectively connected to the manifold oil outlet channel. Each oil production channel is provided with the manifold control valve. One end of the manifold oil outlet channel is a manifold oil outlet end connected to the second manifold connecting pipeline. The manifold control valve is provided between the manifold oil outlet end and each oil production channel. The end of the first manifold connecting pipeline is provided with a first docking end, and the end of the second manifold connecting pipeline is provided with a second docking end for docking with the first docking end.

[0013] The flow control valve is a 2-way solenoid valve.

[0014] By adopting the above technical solution, the beneficial effects of this utility model are: the above structural setting, through the arrangement of various channels on the diversion valve block and the diversion control valve, can realize the control of the use and flow of different channels, and can realize the control according to the needs before, after and during the oil sampling operation. For example, oil discharge (which can discharge waste oil or potentially contaminated oil samples) and oil sample diversion can be achieved through the aforementioned further structural configurations. For instance, in oil discharge (which can discharge waste oil or potentially contaminated oil samples), the diversion control valves of all oil sample diversion channels are closed, while the others are open, meaning the collected oil inlet channel is directly connected to the discharge channel for discharge. Alternatively, the diversion control valves of the collected oil inlet channel and several oil sample diversion channels are opened, while the diversion control valves of the remaining diversion channels and the discharge channel are closed, meaning the collected oil inlet channel is connected to one or more oil sample diversion channels to discharge into the corresponding oil storage container. Furthermore, the oil storage container is a device with an emptying structure, and the diversion control valves of the oil sample diversion channels are configured to achieve bidirectional flow control, controlling the closure of the collected oil inlet and allowing one or more oil sample diversion channels to flow through and discharge the oil from the oil storage container. Thus, various required diversion controls can be achieved. As can be seen, the first collection pipeline and the collection oil inlet channel mentioned above have the function of collection, while the others mainly play the function of diversion. In the process of collection and diversion, the oil sample flows in the channel and is isolated from the outside world, so it will not be contaminated. Contaminated oil samples can also be discharged. It can be automated and improve efficiency, thereby achieving the above-mentioned purpose of this utility model.

[0015] The aforementioned additional external components and external docking modules can be installed on equipment such as transformers. They can be used to connect to oil samples individually or by using the aforementioned flow-collecting valve block. These components have multiple oil sampling channels that can be controlled according to the needs of the oil extraction operation. The flow of different channels can be controlled to achieve centralized flow-collecting oil extraction operations for several equipment devices, which is beneficial to better achieving the above-mentioned objectives of this utility model. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an oil sample collection and diversion control device related to this utility model.

[0017] Figure 2 This is a schematic diagram of the external docking module in an oil sampling, collection, and diversion control device that relates to this utility model.

[0018] Figure 3 This is a schematic diagram of the test tube push-pull mechanism in an oil sample collection and diversion control device that relates to this utility model.

[0019] Figure 4 This is a schematic diagram illustrating the structural principle of the diversion control valve on the diversion valve block in an oil sample collection and diversion control device, which relates to this utility model.

[0020] Figure 5 This is a schematic diagram illustrating the layout principle of the flow control valve on the flow control block in an oil sample collection and flow distribution control device.

[0021] Figure 6 , Figure 7 and Figure 8 This is a schematic diagram of different combinations of the oil sample collection and diversion control device involved in this utility model.

[0022] In the picture:

[0023] Flow divider block 1; Flow divider control valve 2; Oil inlet channel 21; Oil inlet end 211;

[0024] Oil drain channel 22; oil sample diversion channel 23;

[0025] Oil storage container 3; test tube push-pull mechanism 30; drive motor 31; lead screw and slider mechanism 32; fixed plate 33;

[0026] Guide connecting plate 34; fixing block 35; connecting block 36; clamping structure 37;

[0027] Oil discharge container 4; diversion pipeline 5; first manifold connecting pipeline 6; first docking end 61;

[0028] External mating component 8; Second mating end 81;

[0029] External module 9; manifold valve block 91; manifold oil outlet channel 911; manifold oil outlet end 9111; oil production channel 912; oil production pipeline 92; manifold control valve 93; second manifold connecting pipeline 94; second connecting end 941. Detailed Implementation

[0030] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0031] This embodiment discloses an oil sample collection and diversion control device, such as... Figure 1 As shown, it includes a diversion valve block 1, a diversion control valve 2, an oil storage container 3, an oil discharge container 4, a diversion pipeline 5, and a first collection and connection pipeline 6.

[0032] All oil storage containers 3 are used to hold the oil samples to be collected for testing. In this utility model, multiple oil storage containers 3 are arranged, which can achieve the sampling of multiple oil samples in one operation during the operation of automated equipment, which is conducive to improving the efficiency of oil sampling.

[0033] The oil discharge container 4 is mainly used to hold oil that is contaminated, may be contaminated, or is not used for testing.

[0034] The diversion valve block 2 is mainly used for flow control of collection and diversion to achieve automated application. Internally, it includes a collection oil inlet channel 21 and multiple diversion channels connected to the collection oil inlet channel 21. In this embodiment, the diversion channels include an oil discharge channel 22 and multiple oil sample diversion channels 23. The collection oil inlet channel 21 is the main channel, primarily for various types of oil to flow through. The oil discharge channel 22 is primarily for waste oil, contaminated oil, and unused oil to flow through. The oil sample diversion channels 23 are primarily for the oil samples to be collected for testing to flow through. The oil discharge channel 22 and each oil sample diversion channel 23 are respectively equipped with a diversion control valve 2 to control the closure of the corresponding channel. The oil collection and inlet channel 21 is connected to the first collection and connecting pipeline 6 at one end, and oil collection and inlet are achieved by connecting the first collection and connecting pipeline 6 to the external equipment. The oil collection and inlet channel 21 is equipped with a diversion control valve 2 between the oil collection and inlet end 211 and the connecting oil discharge channel 22 and each oil sample diversion channel 23 to control the opening or closing of the channel. The waste oil channel 23 is connected to the oil discharge container 4 through a diversion pipeline 5. Each oil sample diversion channel 23 corresponds to an oil storage container 3 and is connected to the diversion pipeline 5. The diversion pipeline 5 and the corresponding channel can be connected by quick connectors.

[0035] The above-mentioned structural setup, through the arrangement of various channels on the diversion valve block 2 and the diversion control valves 2, allows for control of the flow through different channels, enabling control according to the needs before, during, and after oil sampling operations. For example, when discharging waste oil (waste oil or potentially contaminated oil samples), the diversion control valves 2 of all oil sample diversion channels 23 are closed, while the others are open, meaning the collecting inlet channel 21 is directly connected to the discharge channel 22 and discharged into the discharge container 4. Alternatively, the diversion control valves 2 of the collecting inlet channel 21 and several oil sample diversion channels 23 are opened, while the diversion control valves 2 of the remaining oil sample diversion channels 23 and the discharge channel 22 are closed, meaning the collecting inlet channel 21 is connected to one or more oil sample diversion channels 23 and discharged into the corresponding oil storage container 3.

[0036] Furthermore, the oil storage container 3 described in the above embodiments of this utility model can be a device with a venting structure, used for venting the oil sample from the oil storage container 3. This can prevent oil sample mixing and contamination, and can be an automated operation structure. A simpler device structure can have an oil drain port on the oil storage container 3, with the drain port's opening and closing controlled by a control valve. In this structure, the diversion control valve 2 can be a unidirectional flow control. Alternatively, it can also be as follows... Figure 1 and Figure 3As shown, the flow control valve 2 of the oil sample diversion channel 23 is configured to achieve bidirectional flow control. It can control the closure of the oil inlet and allow one or more diversion channels 23 to flow through the waste oil channel 2 to discharge the oil from the oil storage container 3 into the oil discharge container 4. Specifically, as shown in the figure, the oil storage container 3 is a syringe-type oil sample test tube, and each syringe-type oil sample test tube is equipped with a test tube push-pull mechanism 30. The test tube push-pull mechanism 30 is used to drive the pull-pull rod of the corresponding syringe-type oil sample test tube to pull and push out. When pushed out, the waste oil or air in the syringe-type oil sample test tube is emptied. The structure of the test tube push-pull mechanism 30 can be a syringe-type oil sample test tube fixedly installed, with its pull rod connected to a drive cylinder that drives the pull-out or push-in state change. Alternatively, the test tube push-pull mechanism 30 can be as shown in the figure, including a drive motor 31, a lead screw and slider mechanism 32, a fixed plate 33, a guide connecting plate 34, a fixed block 35, and a connecting block 36. The fixed plate 33 is fixedly installed. The drive motor 31 (which can be a stepper motor) and the lead screw and slider mechanism 32 are installed on one side of the fixed plate 33, and the lead screw end of the lead screw and slider mechanism 32 is connected to the output shaft of the drive motor 31. The fixed block 35 is fixedly installed on the other side of the fixed plate 33 (opposite to the drive motor 31 and the lead screw and slider mechanism 32) and is constructed to fix the syringe-type oil sample test tube (i.e., the oil storage container 3). As shown in the figure, the fixed blocks 35 are two corresponding blocks on the fixed plate 33, and each of the two fixed blocks 35 is provided with a tube body that can be connected to the two ends of the syringe-type oil sample test tube. The U-shaped groove is embedded and clamped, and the connecting block 36 is connected to the slider on the lead screw slider mechanism 32 through the guide connecting plate 34. The fixed plate 33 has a movable groove for the guide connecting plate 34 to pass through and move. The connecting block 36 is provided with a clamping structure 37 that can clamp the outer end of the pull rod of the syringe-type oil sample tube, as shown in the figure. The connecting block 36 is provided with a U-shaped groove for the outer end of the pull rod of the syringe-type oil sample tube to be embedded and clamped. Thus, when the drive motor 31 starts working... The forward or reverse rotation of the screw drives the lead screw of the lead screw slider mechanism 32 to rotate forward or reverse. When the lead screw rotates forward or reverses, it drives the slider on the lead screw slider mechanism 32 to slide axially on the lead screw. At the same time, the connecting block 36 slides along with it. The sliding of the connecting block 36 drives the pull rod of the syringe-type oil sample test tube to change from being pulled out to being pushed in. The pushing in action can be used to discharge the oil sample or air from the syringe-type oil sample test tube, while the pulling out action provides the holding space for the syringe-type oil sample test tube.

[0037] In this embodiment, the diversion control valve 2 is a 3-way solenoid valve and / or a 2-way solenoid valve. Each oil sample diversion channel 23 has two 3-way solenoid valves for its diversion control valve 2, while the oil collection inlet channel 21 and the oil outlet channel 22 each have one 2-way solenoid valve for their diversion control valve 2. The schematic diagram of the layout structure is shown below. Figure 4As shown, the 2-way solenoid valve is a 2-position 2-way solenoid valve with a direct-acting cone valve structure. It is normally open when de-energized and closes when energized, connecting ports 1 and 2. The 3-way solenoid valve is a 2-position 3-way solenoid valve with a direct-acting cone valve structure. When de-energized, ports 1 and 2 are connected, and port 3 is closed. When energized, ports 2 and 3 are connected, and port 1 is closed. By configuring two 3-way solenoid valves on each oil sample diversion channel 23, the flow direction of the oil sample in the corresponding six syringe-type oil sample tubes in the figure is controlled. All oil sample diversion channels 23 can achieve bidirectional flow and can be combined into four different states, as shown from left to right in the figure: closed loop state, waste oil discharge state, oil sample collection state, and syringe-type oil sample tube discharge state. Then, the oil collection inlet channel 21 and the oil discharge channel 22 are each configured with a 2-way solenoid valve, which is responsible for controlling the opening and closing of the oil inlet and waste oil outlet channels, respectively. The above structural configuration allows for various control measures to be implemented, such as closing all oil sample diversion channels 23, directly connecting the oil collection inlet channel 21 to the oil discharge channel 22 for draining oil into the oil discharge container 4, closing the oil discharge channel 22, allowing the oil collection inlet channel 21 to flow with one or more oil sample diversion channels 23 for oil sampling in syringe-type oil sample test tubes, and closing the oil collection inlet channel 21, allowing one or more oil sample diversion channels 23 to flow with the oil discharge channel 22 for draining oil from syringe-type oil sample test tubes into the oil discharge container 4, etc.

[0038] One of the oil sampling and flow control devices described above can be equipped with an external connection component 8 for installation on equipment (such as a transformer cabinet) requiring oil sampling tests. The first flow-collecting connection pipe 6 has a first connection end 61 at its end. The external connection component 8 consists of several second flow-collecting connection pipes, each with a second connection end 81 for connection with the first connection end 61, facilitating connection. Figure 6 The application structure is shown.

[0039] Other than that Figure 7 and Figure 8 As shown, one of the oil sampling, collection, and diversion control devices of the above-mentioned technical solutions can be configured with an external module 9. In use, it is installed on equipment such as transformers or integrated cabinets, positioned strategically, for centrally distributing oil sampling ports. It connects to the oil sampling ports of multiple devices via pipelines to achieve centralized collection and sampling operations. The external module 9 is as follows... Figure 2As shown, the system includes a manifold valve block 91, an oil production pipeline 92, a manifold control valve 93, and a second manifold connecting pipeline 94. The manifold valve block 91 includes a manifold oil outlet channel 911 and multiple oil production channels 912 that are respectively connected to the manifold oil outlet channel 911. Each oil production channel 912 is provided with the manifold control valve 93. One end of the manifold oil outlet channel 911 is a manifold oil outlet end 9111 connected to the second manifold connecting pipeline 94. The manifold control valve 93 is provided between the manifold oil outlet end 9111 and each oil production channel 912. The end of the first manifold connecting pipeline 94 is provided with a first connecting end 61, and the end of the second manifold connecting pipeline 94 is provided with a second connecting end 941 for connecting with the first connecting end 61. By controlling the flow control valve 93 according to the oil sampling target, one or more required oil collection channels 912 and flow collection outlet channels 911 are opened or closed. The oil collection pipeline 92 can be connected to the oil sampling ports of each equipment device through the above-mentioned diversion pipeline 5. The application structure is shown in the figure. In this embodiment, the flow control valve 93 is a 2-way solenoid valve, which can use the same device as the above. The schematic diagram of the layout structure is shown in the figure. Figure 5 As shown, the four 2-way solenoid valves are responsible for controlling the opening and closing of the four oil extraction channels 912, and the one 2-way solenoid valve is responsible for controlling the opening and closing of the oil collection and outlet channel 911. By controlling the opening and closing of the solenoid valves, one or more groups of oil lines can be controlled to flow out of the oil outlet.

[0040] The above embodiments propose using valve blocks to automate oil sampling from different oil inlets of transformers, etc. A test tube push-pull module is also incorporated, introducing an automated reverse venting approach during sampling to fully prevent oil samples from being contaminated by air. Compared to traditional manual oil sampling, the module designed in this invention can automatically complete transformer oil sampling, possessing current collection and distribution functions, making oil sampling control more convenient. This reduces the labor intensity and operational risks for substation maintenance personnel, improves maintenance efficiency and timeliness, and effectively avoids oil sample exposure. Furthermore, the number and connection methods of the solenoid valves in this invention are expandable. Under the premise of unchanged design principles, various different combinations are possible. For those skilled in the art, several improvements and optimizations can be made without departing from the principles described in this invention, and these improvements and optimizations should also be considered within the scope of protection of this invention.

[0041] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An oil sample collection and diversion control device, characterized in that, The system includes a diversion valve block, a diversion control valve, an oil storage container, a diversion pipeline, and a first collection and connection pipeline. The diversion valve block includes a collection oil inlet channel and multiple diversion channels that are respectively connected to the collection oil inlet channel. Each diversion channel is equipped with the diversion control valve. One end of the collection oil inlet channel is a collection oil inlet end connected to the first collection and connection pipeline. The diversion control valve is installed between the collection oil inlet end and the connection to each diversion channel. The diversion channel is connected to the oil storage container through the diversion pipeline.

2. The oil sample collection and diversion control device as described in claim 1, characterized in that, The diversion channel includes an oil sample diversion channel and an oil discharge channel, and the oil storage container connected to the oil sample diversion channel is a device with a venting structure.

3. The oil sample collection and diversion control device as described in claim 2, characterized in that, The flow control valve of the oil sample diversion channel is designed to enable bidirectional flow control.

4. The oil sample collection and diversion control device as described in claim 3, characterized in that, The diversion control valve is a 3-way solenoid valve and / or a 2-way solenoid valve. The diversion control valves on all oil sample diversion channels are configured as two 3-way solenoid valves. The diversion control valves on the oil collection inlet channel and the waste oil channel are each configured as a 2-way solenoid valve. And / or, the oil storage container connected to the oil sample diversion channel is a syringe-type oil sample test tube and is equipped with a test tube push-pull mechanism.

5. The oil sample collection and diversion control device as described in claim 4, characterized in that, The test tube push-pull mechanism includes a drive motor, a lead screw and slider mechanism, a fixed plate, a guide connecting plate, a fixed block, and a connecting block. The drive motor and the lead screw and slider mechanism are installed on one side of the fixed plate. The lead screw end of the lead screw and slider mechanism is connected to the output shaft of the drive motor. The fixed block is fixedly installed on the other side of the fixed plate and has a fixing structure that can fix the syringe-type oil sample test tube. The connecting block is connected to the slider on the lead screw and slider mechanism through the guide connecting plate. The connecting block is provided with a clamping structure that can clamp the outer end of the pull rod of the syringe-type oil sample test tube.

6. The oil sampling, collection, and diversion control device as described in any one of claims 1-5, characterized in that, It also includes an external connection component. The end of the first current collection and connection pipeline is provided with a first connection end. The external connection component is a plurality of second current collection and connection pipelines. The end of the second current collection and connection pipeline is provided with a second connection end for connecting with the first connection end.

7. The oil sampling, collection, and diversion control device as described in any one of claims 1-5, characterized in that, It also includes an external module, which includes a manifold valve block, an oil production pipeline, a manifold control valve, and a second manifold connecting pipeline. The manifold valve block includes a manifold oil outlet channel and multiple oil production channels that are respectively connected to the manifold oil outlet channel. Each oil production channel is provided with the manifold control valve. One end of the manifold oil outlet channel is a manifold oil outlet end connected to the second manifold connecting pipeline. The manifold control valve is provided between the manifold oil outlet end and each oil production channel. The end of the first manifold connecting pipeline is provided with a first docking end, and the end of the second manifold connecting pipeline is provided with a second docking end for docking with the first docking end.

8. The oil sample collection and diversion control device as described in claim 7, characterized in that, The flow control valve is a 2-way solenoid valve.

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