CN216621705U - Drip irrigation product hydraulic performance test device and test system - Google Patents
Drip irrigation product hydraulic performance test device and test system Download PDFInfo
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- CN216621705U CN216621705U CN202122943381.5U CN202122943381U CN216621705U CN 216621705 U CN216621705 U CN 216621705U CN 202122943381 U CN202122943381 U CN 202122943381U CN 216621705 U CN216621705 U CN 216621705U
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
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Abstract
The utility model relates to a hydraulic performance test device and a hydraulic performance test system for drip irrigation products, which comprise a water collecting tank with an open top, wherein the top of the water collecting tank is provided with at least one support, at least one weight detection element is fixed on the support, a measuring cylinder is arranged above the weight detection element and supports the measuring cylinder, the wall of the water collecting tank parallel to the support is provided with a plurality of joints which can be detachably connected with the end part of a drip irrigation belt, and the joints are connected with a water supply pipeline.
Description
Technical Field
The utility model relates to the technical field of test equipment, in particular to a device and a system for testing hydraulic performance of a drip irrigation product.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Along with the change of ecological environment and global climate, the water resource crisis is becoming more and more serious, wherein drip irrigation is a very effective water-saving irrigation mode at present, and can combine fertilization, realizes the integration of water and fertilizer. The application of water-saving elements such as drippers and drip irrigation belts of intelligent irrigation systems is widely popularized, a batch of drip irrigation product manufacturers emerge in recent years, and due to the fact that the levels of enterprises are different, the produced products are various and the quality is difficult to guarantee. Wherein the water dropper is the core of driping irrigation liquid manure integration system, tests the platform to the professional experiment that drips irrigation product hydraulic performance detected at present and still very lacks, and the enterprise often judges the product through the simple and crude testing arrangement of own or rely on the experience and closes nonconformity, lacks the scientific foundation, and measuring result is inaccurate, and product quality can't obtain guaranteeing.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides the hydraulic performance testing device for the drip irrigation product, which is convenient and quick to use, has accurate measuring result and can ensure the quality of the product.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the embodiment of the utility model provides a hydraulic performance test device for a drip irrigation product, which comprises a water collecting tank with an open top, wherein the top of the water collecting tank is provided with at least one support, at least one weight detection element is fixed on the support, a measuring cylinder is arranged above the weight detection element and supports the measuring cylinder, the wall of the water collecting tank parallel to the support is provided with a plurality of joints which can be detachably connected with the end part of a drip irrigation belt, and the joints are connected with a water supply pipeline.
Optionally, the support sets up a plurality ofly, a plurality of support parallel arrangement, support and header tank sliding connection.
Optionally, the water supply pipeline includes water inlet main pipe, water inlet main pipe's one end can be connected with water supply system, the other end is connected with first branch water inlet pipe and second branch water inlet pipe, first branch water inlet pipe is connected with the end of intaking of first catchment pipe, first catchment pipe is connected with a plurality of first branch pipes, first branch pipe and the articulate of header tank one side tank wall, second branch water inlet pipe is connected with the end of intaking of second catchment pipe, second catchment pipe is connected with a plurality of second branch pipes, the second branch pipe and the articulate of header tank other side tank wall.
Optionally, the first branch pipe is provided with a switch valve and a water pressure detection element, and correspondingly, the second branch pipe is provided with a switch valve and a water pressure detection element.
Optionally, a switch valve is installed on the second water inlet branch pipe.
Optionally, a circulating water pipe is connected between the water outlet ends of the first water collecting pipe and the second water collecting pipe.
In a second aspect, embodiments of the present invention provide a system for testing hydraulic performance of a drip irrigation product, including the device for testing hydraulic performance of a drip irrigation product according to the first aspect, wherein a water supply pipeline of the device is connected to a water supply system.
Optionally, the water supply system includes the water storage tank, be equipped with in the water storage tank with the immersible pump, the export of immersible pump passes through the pipeline and is connected with filter mechanism, filter mechanism's export and water supply pipe are connected.
Optionally, still include the heating cabinet, be equipped with heating element in the heating cabinet, one side tank wall of heating cabinet is equipped with the joint, the bottom tank wall of heating cabinet is equipped with the ooff valve, and the ooff valve passes through water intake pipe and is connected with water supply pipe, connects and is connected with third branch pipe, and a plurality of third branch pipes are connected with third catchment pipe, and third catchment pipe is connected with pressure boost pipeline, and pressure boost pipeline is connected with water intake pipe, is provided with the booster pump on the pressure boost pipeline.
Optionally, the third branch pipe is provided with a switch valve and a water pressure detection element.
The beneficial effects of the utility model are as follows:
1. according to the test device, the joint of the water collecting tank can be fixedly connected with the end part of the drip irrigation tape, so that the dripper on the drip irrigation tape can be positioned above the measuring cylinder, water flowing out of the dripper can enter the measuring cylinder, the flow is calculated through the weight detection element, the high-precision weight detection element is adopted for weighing in the measurement of the water amount, the weighing difference is calculated by using time, the volume is finally calculated, and then required parameters such as the flow are calculated.
2. The test device provided by the utility model is provided with the plurality of supports, the plurality of measuring cylinders are arranged on the supports, the plurality of drippers on the plurality of drip irrigation belts can be tested simultaneously, and the supports can slide along the water collecting tank, so that the problem of different dripper distances among different drip irrigation belts is solved, the operation is simple and rapid, and the test efficiency is improved.
3. According to the test device, the switch valve is arranged on the second water inlet branch pipe, the compatibility problem of a closed circuit method and a loop method can be solved through the switch valve, and the closed circuit method test and the loop method test can be carried out on one set of test device.
4. The test system provided by the utility model is provided with the water supply system, and can directly provide test water, so that the test water directly enters the test device to perform the hydraulic performance test of the drip irrigation product.
5. The test system provided by the utility model is provided with the heating box and the booster pump, can be used for detecting various test items, is high in comprehensiveness, and solves the difficult problems of detection of multiple devices, such as a flow uniformity test, a flow and water inlet pressure relation test, a hydrostatic pressure resistance test, a bursting test, a high temperature resistance test and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a plan view of the whole structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of an assembly of a measuring cylinder and a load cell according to embodiment 1 of the present invention;
FIG. 3 is a side view of a first casing according to embodiment 1 of the present invention;
FIG. 4 is a schematic view showing the structure of a water supply system according to embodiment 2 of the present invention;
FIG. 5 is a schematic view showing the assembly of a heating chamber according to example 2 of the present invention;
FIG. 6 is a schematic view of the piping below the heating tank and the water collecting tank in example 2 of the present invention;
FIG. 7 is a side view of a second housing in embodiment 2 of the utility model;
wherein, 1, a water collecting tank, 2, a bracket, 3, a guide rail, 4, a sensor supporting plate, 5, a weighing sensor, 6, a sensor bearing plate, 7, a measuring cylinder seat, 8, a measuring cylinder, 9, a first joint, 10, a water inlet main pipe, 11, a first pressure transmitter, 12, a first water inlet branch pipe, 13, a second water inlet branch pipe, 14, a first water collecting pipe, 15, a first branch pipe, 16, a first electric ball valve, 17, a second pressure transmitter, 18, a second electric ball valve, 19, a second water collecting pipe, 20, a second branch pipe, 21, a third electric ball valve, 22, a circulating water pipe, 23, an electric pressure regulating valve, 24, a third pressure transmitter, 25, a first shell, 26, a water storage tank, 27, a submersible pump, 28, a centrifugal filter, 29, a self-cleaning sand filter, 30, a laminated filter, 31, a fourth pressure, 32, a heating pipe, 33, 34. the temperature sensor 35, the second joint 36, the third branch pipe 37, the third water collecting pipe 38, the fourth electric ball valve 39, the fifth pressure transmitter 40, the switch valve 41, the water inlet pipeline 42, the pressure increasing pipeline 43, the pressure increasing pump 44, the electric pressure reducing valve 45, the second shell 46 and the fifth electric ball valve.
Detailed Description
Example 1
The embodiment provides a device for testing hydraulic performance of a drip irrigation product, which comprises a water collecting tank 1, wherein the water collecting tank 1 is of a tank body structure with an open top, and comprises a bottom tank wall and side tank walls fixed at four edges of the bottom tank wall.
The top of header tank is provided with at least one support 2, and in this embodiment, in order to realize experimenting simultaneously a plurality of drippers on the drip irrigation zone, the top of header tank 1 is provided with a plurality of supports 2, and preferably, the top of header tank 1 is provided with five supports 2, and a plurality of supports 2 parallel arrangement.
Further, in order to satisfy the demand that different drippers carry out the experiment, 1 two first tank wall tops that set up along the first direction of header tank are provided with guide rail 3, 2 tip and the 3 sliding connection of guide rail of support, and then can realize the regulation of distance between the adjacent support 2 to the experimental demand of different dripper intervals has been satisfied.
In this embodiment, the bracket 2 is perpendicular to the first wall.
In this embodiment, in order to simultaneously measure the drippers on the drip irrigation tapes, a plurality of weighing sensors 5 are mounted on the sensor support plate 4, and preferably, five weighing sensors 5 are mounted on the sensor support plate 4.
The bottom of graduated flask 8 is equipped with the outlet pipe, and the outlet pipe bottom extends to sensor backup pad 4 below, installs the ooff valve on the outlet pipe, and is preferred, the ooff valve adopts fifth electric ball valve 46, opens fifth electric ball valve 46, can put into the header tank with the water in the graduated flask 8, realizes the collection of water, and the header tank is equipped with the drain pipe, also installs electric ball valve on the drain pipe, can discharge the water in the header tank through the drain pipe.
In this embodiment, be provided with a plurality of first joints 9 on two second tank walls perpendicular with first tank wall, the quantity of first joint 9 and the quantity phase-match of the graduated flask 7 of installing on support 2, in this embodiment, the first joint on the second tank wall sets up five, first joint 9 can dismantle fixed connection with the tip of drip irrigation zone, and then install the drip irrigation zone on the test device of this embodiment.
The water supply pipeline comprises a water inlet main pipe 10, the water inlet main pipe comprises a first pipe section which is horizontally arranged, the first pipe is communicated with a second pipe section which is vertically arranged through a 90-degree elbow, the second pipe is connected with a third pipe section which is horizontally arranged through a 90-degree elbow, the third pipe section and the first pipe section are vertically arranged in space, the third pipe section is preferable, a water pressure detection element is installed on the third pipe section, and the water pressure detection element is preferable and adopts a first pressure transmitter 11.
The tail end of the third pipe section is respectively connected with the first water inlet branch pipe 12 and the second water inlet branch pipe 13 through a tee joint.
The tail end of the first water inlet branch pipe 12 is connected with the water inlet end of the first water collecting pipe 14 through a tee joint, the first water collecting pipe 14 is connected with five first branch pipes 15 through a tee joint, and the tail end of each first branch pipe 15 is connected with the first joint 9.
The first branch pipe 15 is provided with a switch valve and a water pressure detection element, preferably, the switch valve adopts a first electric ball valve 16, and the water pressure detection element on the first branch pipe adopts a second pressure transmitter 17.
The second branch water inlet pipe 13 is provided with a switch valve, preferably, the switch valve is a second electric ball valve 18.
The second water inlet branch pipe 13 is connected with the water inlet end of a second water collecting pipe 19, the second water collecting pipe 19 is connected with five second branch pipes 20, and the tail ends of the second branch pipes 20 are connected with the first joint.
And a switch valve is arranged on the second branch pipe, and preferably, the switch valve adopts a third electric ball valve 21.
And a circulating water pipe 22 is connected between the water outlet ends of the first water collecting pipe and the second water collecting pipe, the circulating water pipe 22 comprises a fourth pipe section, two ends of the fourth pipe section are respectively communicated with the water outlet ends of the first water collecting pipe 14 and the second water collecting pipe 19, the fourth pipe section is connected with a fifth pipe section vertical to the fourth pipe section through a tee joint, the fifth pipe section is connected with a sixth pipe section through a 90-degree elbow, the sixth pipe section is connected with a seventh pipe section through a 90-degree elbow, the seventh pipe section is vertically arranged, and the seventh pipe section is connected with an eighth pipe section parallel to the first pipe section through a 90-degree elbow.
Preferably, a pressure regulating element and a water pressure detecting element are installed on the sixth pipe section, preferably, the pressure regulating element adopts an electric pressure regulating valve 23, and the water pressure detecting element adopts a third pressure transmitter 24.
In this embodiment, the water supply pipeline is disposed inside the first casing 25, and the water collecting tank 1 is fixed on the top of the first casing 25, so as to protect the water supply pipeline by using the water supply pipeline casing.
The working method of the test device of the embodiment is as follows:
and connecting the water inlet main pipe with a water supply system.
When the closed-loop test is carried out, one end of the drip irrigation tape is fixedly connected with the first connector fixing 9, the other end of the drip irrigation tape is blocked, a dripper on the drip irrigation tape is positioned above the measuring cylinder, and the second electric ball 18 valve on the second water inlet branch pipe is closed.
And starting the water supply system, feeding water with set pressure into the water supply pipeline by the water supply system, enabling the water to flow through the water inlet main pipe, the first water inlet branch pipe, the first water collecting pipe, the first branch pipe and the first joint and then to be injected into the drip irrigation tape, and enabling the water to fall into the measuring cylinder through the drippers.
The measuring cylinder is weighed by the weighing sensor, the weighing difference is calculated by time, the volume is finally calculated, and then parameters such as the flow of water of the dripper are calculated.
When a loop method test is carried out, one end of the drip irrigation tape is fixedly connected with the first connector, the other end of the drip irrigation tape is fixedly connected with the second connector, a dripper on the drip irrigation tape is positioned above the measuring cylinder, and the second electric ball valve on the second water inlet branch pipe is opened.
The water supply system is started, the water supply system sends water with set pressure into the water supply pipeline, the water sequentially flows through the water inlet main pipe, the first water inlet branch pipe, the first water collecting pipe, the first branch pipe and the first joint and then enters the drip irrigation zone from one end of the drip irrigation zone, and the water sequentially flows through the water inlet main pipe, the second water inlet branch pipe, the second water collecting pipe, the second branch pipe and the first joint and then enters the drip irrigation zone from the other end of the drip irrigation zone, namely, water is injected from both ends of the drip irrigation zone.
The measuring cylinder is weighed by the weighing sensor, the weighing difference is calculated by time, the volume is finally calculated, and then parameters such as the flow of water of the dripper are calculated.
After the experiment is completed, the fifth electric ball valve 46 at the bottom of the measuring cylinder is opened, water in the measuring cylinder is put into the water collecting tank and then is discharged and collected through the drain pipe.
Example 2
The embodiment discloses a system for testing the hydraulic performance of a drip irrigation product, which comprises the device for testing the hydraulic performance of the drip irrigation product in embodiment 1, wherein a water inlet main pipe of the device for testing the hydraulic performance of the drip irrigation product is connected with a water supply system, and the water supply system is used for injecting water with set pressure into the water inlet main pipe.
The water supply system includes water storage tank 26, water storage tank 26 passes through the support body to be fixed on the ground basis, water storage tank inside is provided with immersible pump 27, and immersible pump 27's control system can carry out the frequency conversion according to experimental required pressure and adjusts, immersible pump 27's export is passed through pipeline and filter mechanism's access connection, and filter mechanism's export and inlet manifold are connected.
In order to ensure the filtering effect, the filtering mechanism adopts three-stage filtering, and comprises a first-stage filter, a second-stage filter and a third-stage filter which are sequentially connected in series.
The first-stage filter adopts a centrifugal filter 28, and can primarily filter out massive sandstone particles and the like in the test water.
The secondary filter adopts a self-cleaning sandstone filter 29, and can filter impurities such as planktonic microorganisms in water.
Tertiary filter adopts lamination filter 30, can filter the tiny silt of aquatic, and certain tiny silt that secondary filter produced also can filter in the lump.
The test standard stipulates that the water for the test is filtered by a filter with a nominal pore size of 75-100 microns, the laminated filter can select filter discs with different precisions according to the water requirement stipulated by the test condition, and the filtered water meets the test requirement and can be directly connected into a water supply pipeline of a test device for relevant tests.
The pipeline between the primary filter and the secondary filter is provided with a water pressure detection element, preferably, the water pressure detection element adopts a fourth pressure transmitter 31, and the fourth pressure transmitter 31 can detect the water pressure in the pipeline of the water supply system and transmit the water pressure to the control system. The control system of the submersible pump 27 performs frequency conversion adjustment according to the pressure required by the test, wherein the pressure of the test water can be transmitted to the control system according to the measured value of the fourth pressure transmitter 31, and then compared with the set value, finally closed-loop control is performed, the rotating speed of the submersible pump 27 is controlled, and the constant pressure control of the test water of the test system is realized.
In this embodiment, the eighth pipe section of the circulating water pipe 22 is connected to the water storage tank 26, and water generated in the test can flow back to the water storage tank 26 through the circulating water pipe for recycling, so that the test cost is saved.
The test system further comprises a heating box 32, wherein the heating box 32 is of a box body structure with an open top and comprises a bottom box wall and four side box walls arranged on the edge of the bottom box wall.
Heating elements and temperature detection elements are arranged on two third side box walls opposite to the heating box 32, the heating elements are heating pipes 33, the heating pipes 33 are connected with a control system, water in the heating box can be heated under the instruction of the control system, the temperature detection elements are temperature sensors 34, the temperature sensors 34 are connected with the control system, collected temperature information can be transmitted to the control system, the control system compares the collected temperature information with a set value, the heating pipes 33 are controlled to work, and closed-loop control of the water temperature is achieved.
Five second joints 35 are arranged on one fourth side box wall of the heating box 32, which is perpendicular to the third side box wall, the second joints 35 are connected with third branch pipes 36, the third branch pipes 36 are all connected with a third water collecting pipe 37, switch valves and water pressure detection elements are arranged on the third branch pipes 36, the switch valves adopt fourth electric ball valves 38, and the water pressure detection elements adopt fifth pressure transmitters 39.
An opening is formed in the wall of the bottom of the heating box, a switch valve 40 is installed at the opening, the switch valve is connected with one end of a water inlet pipeline 41, and the other end of the water inlet pipeline 41 is connected with the water inlet main pipe 10.
The water inlet pipeline 41 is further connected with one end of a pressurization pipeline 42, the other end of the pressurization pipeline 42 is connected with the water inlet end of the third water collecting pipe 37, a pressurization pump 43 is arranged on the pressurization pipeline 42, a pressure relief pipeline is arranged between the pressurization pipeline and the water inlet pipeline, and an electric pressure relief valve 44 is arranged on the pressure relief pipeline.
In this embodiment, the water inlet pipeline, the pressurization pipeline, the third water collecting pipe, the third branch pipe, the pressurization pump and other components are arranged inside the second shell 45 and protected by the second shell 45.
In this embodiment, open the ooff valve on the tank wall of heating cabinet bottom, start water supply system, to pouring into water in the heating cabinet, close the ooff valve on the tank wall of bottom after finishing, then according to the experimental requirement, open the booster pump, adjust the pressure to the pressure value that the experiment required, this pressure value accessible sixth pressure transmitter obtains, through control system control heating pipe work for the temperature in the heating cabinet reaches the setting value, connect the connection through the third joint and go up the relevant projects such as withstand voltage experiment and pressure blasting can carry out.
In this embodiment, a drain valve is further installed on the bottom wall of the heating box, and the drain valve is connected to the circulating water pipe 22 through a drain pipeline.
After the experiment is completed, the drain valve is opened, and the water in the heating box flows into the circulating water pipe 22 through the drain pipe and then enters the water storage tank 26, so that the water recycling is realized.
In the embodiment, all the pressure transmitter, the electric ball valve, the switch valve, the temperature detection element, the weighing sensor, the submersible pump, the booster pump, the heating pipe, the electric pressure release valve and other parts are connected with the control system, the control system is installed in the control cabinet, the control cabinet is provided with the operable touch display screen connected with the control system, relevant test parameters can be input according to test requirements, the test can be automatically carried out, test data such as flow, pressure and temperature are transmitted back to the computer through the sensors after the test is finished, and a corresponding test report is finally issued after the data of the computer is processed.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a drip irrigation product hydraulic performance test device, its characterized in that includes the open-topped header tank, and the header tank top is provided with at least one support, and the support is fixed with at least one weight detection element, weight detection element top is equipped with the graduated flask to support the graduated flask, the header tank is equipped with a plurality of joints that can dismantle the connection with the drip irrigation zone tip with the parallel tank wall of support, connects and is connected with water supply pipe.
2. The device for testing the hydraulic performance of the drip irrigation product according to claim 1, wherein a plurality of supports are arranged in parallel and are slidably connected with the water collection tank.
3. The device for testing the hydraulic performance of the drip irrigation product according to claim 1, wherein the water supply pipeline comprises a water inlet header pipe, one end of the water inlet header pipe can be connected with a water supply system, the other end of the water inlet header pipe is connected with a first water inlet branch pipe and a second water inlet branch pipe, the first water inlet branch pipe is connected with the water inlet end of a first water collecting pipe, the first water collecting pipe is connected with a plurality of first branch pipes, the first branch pipes are connected with the joint of the wall of one side of the water collecting tank, the second water inlet branch pipe is connected with the water inlet end of a second water collecting pipe, the second water collecting pipe is connected with a plurality of second branch pipes, and the second branch pipes are connected with the joint of the wall of the other side of the water collecting tank.
4. The device for testing the hydraulic performance of a drip irrigation product according to claim 3, wherein the first branch pipe is provided with an on-off valve and a water pressure detecting element, and the second branch pipe is provided with an on-off valve and a water pressure detecting element correspondingly.
5. The device for testing the hydraulic performance of a drip irrigation product according to claim 3, wherein the second water inlet branch pipe is provided with a switch valve.
6. The device for testing the hydraulic performance of the drip irrigation product according to claim 3, wherein a circulating water pipe is connected between the water outlet ends of the first water collecting pipe and the second water collecting pipe.
7. A system for testing the hydraulic performance of a drip irrigation product, which comprises the device for testing the hydraulic performance of a drip irrigation product as claimed in any one of claims 1 to 6, wherein a water supply pipeline is connected with a water supply system.
8. The system for testing the hydraulic performance of the drip irrigation product according to claim 7, wherein the water supply system comprises a water storage tank, a submersible pump is arranged in the water storage tank, an outlet of the submersible pump is connected with the filtering mechanism through a pipeline, and an outlet of the filtering mechanism is connected with a water supply pipeline.
9. The system for testing the hydraulic performance of the drip irrigation product according to claim 7, further comprising a heating box, wherein a heating element is arranged in the heating box, a joint is arranged on one side of the box wall of the heating box, a switch valve is arranged on the bottom box wall of the heating box and connected with a water supply pipeline through a water inlet pipeline, the joint is connected with third branch pipes, a plurality of third branch pipes are connected with a third water collecting pipe, the third water collecting pipe is connected with a pressurizing pipeline, the pressurizing pipeline is connected with the water inlet pipeline, and a pressurizing pump is arranged on the pressurizing pipeline.
10. The system for testing the hydraulic performance of a drip irrigation product according to claim 9, wherein a switch valve and a water pressure detecting element are mounted on the third branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943381.5U CN216621705U (en) | 2021-11-26 | 2021-11-26 | Drip irrigation product hydraulic performance test device and test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943381.5U CN216621705U (en) | 2021-11-26 | 2021-11-26 | Drip irrigation product hydraulic performance test device and test system |
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| Publication Number | Publication Date |
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| CN216621705U true CN216621705U (en) | 2022-05-27 |
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| CN202122943381.5U Active CN216621705U (en) | 2021-11-26 | 2021-11-26 | Drip irrigation product hydraulic performance test device and test system |
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| CN (1) | CN216621705U (en) |
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2021
- 2021-11-26 CN CN202122943381.5U patent/CN216621705U/en active Active
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