A solid cone sprinkler water distribution performance detection device and detection method

Abstract

The application belongs to the technical field of detection devices, and discloses a solid cone-shaped sprinkler water distribution performance detection device and a detection method, which comprise a water collecting shell, a plurality of water collecting grooves are formed in the top of the water collecting shell, a liquid level sensor is arranged in each water collecting groove of the water collecting shell, a liftable electromagnetic valve is arranged above the water collecting shell, a sprinkler which is detachably connected with an inner passage of the electromagnetic valve is arranged on the electromagnetic valve, a control system, a gas supply mechanism and a water supply mechanism are arranged on one side of the water collecting shell, the control system is used for controlling the electromagnetic valve, the gas supply mechanism and the water supply mechanism, the water supply mechanism is used for supplying water flow into the electromagnetic valve, and the gas supply mechanism is used for increasing the water supply pressure of the water supply mechanism. Through the improvement of the prior art, the distribution of the water flow sprayed by the sprinkler under different pressures is detected to determine whether the sprinkler meets the requirements, so that the accuracy of the detection result of the sprinkler is improved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a testing device and method for testing the water distribution performance of a solid cone-shaped sprinkler head. Background Technology

[0002] In flammable and explosive production sites, due to the rapid spread of hazardous material fires, rapid fire suppression systems are necessary to effectively extinguish them. Rapid fire suppression systems offer faster detection time, valve opening time, and water delivery time to the ignition point compared to automatic sprinkler systems. To reduce this time and improve effectiveness, rapid fire suppression systems typically utilize solid cone sprinkler heads. These heads feature a small spray angle and high water velocity, allowing for the rapid delivery of large volumes of water to the fire. However, the diverse internal blade structures of solid cone sprinkler heads result in varying water distribution uniformity. Uneven water distribution in rapid fire suppression systems can reduce the actual spray intensity, potentially failing to extinguish fires in flammable and explosive environments and causing the fire to spread.

[0003] Most existing testing devices can only perform tests under a fixed water supply pressure. However, in actual applications, the working pressure of solid cone sprinkler heads will change with the fluctuation of pipeline pressure. The test results under a single working condition cannot fully reflect the water distribution performance of the sprinkler head under different water pressures, thus affecting the accuracy of the test results. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a device and method for testing the water distribution performance of a solid cone-shaped sprinkler head.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a solid cone-shaped sprinkler head water distribution performance testing device, comprising a water collection shell, the top of which is provided with multiple water collection grooves, each of which is provided with a liquid level sensor, a lifting solenoid valve is provided above the water collection shell, a sprinkler head connected to the solenoid valve and communicating with the internal channel of the solenoid valve is detachably connected to the solenoid valve, and a control system, an air supply mechanism and a water supply mechanism are provided on one side of the water collection shell, the control system is used to control the solenoid valve, the air supply mechanism and the water supply mechanism, the water supply mechanism is used to supply water flow into the solenoid valve, and the air supply mechanism is used to increase the water supply pressure of the water supply mechanism.

[0006] By adopting the above technical solution, the nozzle to be tested is first connected to the solenoid valve. The control system adjusts the water supply pressure of the air supply mechanism and the water supply mechanism, and simultaneously sets the control system's action time. Then, the control system opens the channel in the solenoid valve, the water supply mechanism actuates, and water flows through the nozzle to the water collection tank in the water collection shell. At this time, the water level sensor in each water collection tank detects and records the volume of water in the corresponding water collection tank and transmits the detection result to the control system. The control system then calculates the water level according to the formula... The average volume of each water collection tank is calculated, where t is the action time of the water supply mechanism in seconds; Q is the water supply flow rate in L / s; and V is the average spray volume of each water collection tank in liters. If the number of water collection tanks with a water volume less than the average volume is ≤4, the sprinkler head is considered to meet the requirements. Then, different water supply pressures are adjusted and water is supplied to the sprinkler head, and actions S2, S3, and S4 are repeated. Finally, the values ​​under different conditions are combined to determine the sprinkler head's water distribution performance. By analyzing the distribution of water flow from the sprinkler head under different pressures to determine whether the sprinkler head meets the requirements, the accuracy of the sprinkler head testing results is improved.

[0007] Furthermore, the control system includes a control line connected to the solenoid valve circuit and a controller connected to the control line circuit. The controller is equipped with a display and operation buttons. The gas supply mechanism includes a nitrogen cylinder located on one side of the water collection shell, a gas supply switch fixed and connected to the top of the nitrogen cylinder, a gas supply pipe fixed and connected to the gas outlet of the gas supply switch, and a pressure reducing and stabilizing valve located on the gas supply pipe. The gas supply pipe is connected to the water supply mechanism.

[0008] By adopting the above technical solution, the solenoid valve, gas supply mechanism and water supply mechanism can be operated and controlled by the operation button on the controller and through the control line. In addition, the gas in the nitrogen cylinder is discharged by the gas supply switch and discharged to the water supply mechanism through the gas supply pipe. The pressure of the water supply mechanism to supply water to the solenoid valve is controlled according to the amount of gas discharged to ensure that the device can perform normal detection work.

[0009] Furthermore, the water supply mechanism includes a water storage tank disposed on one side of the water collection shell, a water supply pipe fixed and connected to the side wall of the water storage tank, a flow monitoring sensor disposed on the water supply pipe, a liquid level monitoring sensor disposed on the water storage tank, a water replenishment pipe fixed and connected to the top of the water storage tank, a valve disposed on the water replenishment pipe, and a vent valve fixed and connected to the water storage tank. The end of the gas supply pipe away from the nitrogen cylinder is connected to the inside of the water storage tank, and the end of the water replenishment pipe away from the water storage tank is fixed and connected to the water supply pipe.

[0010] By adopting the above technical solution, the gas in the gas supply pipe is discharged into the water storage tank, the pressure in the water storage tank increases, and the water in the water storage tank is discharged from the water supply pipe into the solenoid valve. By adjusting the gas flow rate in the gas supply pipe, the pressure of the water flow injected into the solenoid valve in the water supply pipe can be changed. In addition, by operating the valve, the water in the water storage tank can be discharged from the water replenishment pipe into the water supply pipe, so as to dynamically control the water flow pressure in the water supply pipe and improve the stability of the water flow pressure.

[0011] This application also discloses a testing method for a nozzle water distribution performance testing device, including the following steps: S1, connecting the nozzle to be tested to a solenoid valve;

[0012] S2. The operation control system adjusts the downstream pressure of the pressure reducing and stabilizing valve according to the pressure required by the water supply mechanism, and sets the control system's control action time.

[0013] S3. The operation and control system opens the channel in the solenoid valve, the water supply mechanism is activated, and the water flows through the nozzle to the water collection tank in the water collection shell.

[0014] S4. The water level sensor in each water collection tank detects and records the volume of water in the corresponding tank, and transmits the detection results to the control system. The control system then processes the data according to the formula... Calculate the average volume of each water collection tank, where t is the action time of the water supply mechanism in seconds; Q is the water supply flow rate in L / s; and V is the average spray volume of each water collection tank in liters. If the number of water collection tanks with a water volume less than the average volume is ≤4, the sprinkler head can be judged to meet the requirements.

[0015] S5. Repeat steps S2, S3 and S4 according to the different action pressures that the nozzle needs to be tested.

[0016] S6. Judge the water distribution performance of the nozzle based on the obtained data.

[0017] Furthermore, the water collection shell is provided with an auxiliary mechanism, which includes a detection component and a return water mechanism. The auxiliary mechanism includes an auxiliary component and a rotating component. The auxiliary component includes a hollow detection box with an open top, located on the detection site; a lifting plate slidably disposed within the detection box; and a turntable that penetrates the top of the lifting plate and is rotatably connected to it. The top of the turntable has multiple through holes for placing and limiting the nozzles. The rotating component includes a motor fixed to the lifting plate, with the output end of the motor penetrating the top of the lifting plate and rotatably connected to it. The rotating component also includes a gear fixedly sleeved on the output end of the motor and a gear ring fixedly sleeved on the turntable and meshing with the gear. The water collection shell is fixed inside the detection box. The auxiliary mechanism also includes a lifting component for driving the lifting plate to rise and fall.

[0018] By adopting the above technical solution, multiple nozzles are first inserted into the corresponding mounting through holes in sequence. The motor drives the gear to rotate, which in turn drives the gear ring meshing with the gear and the turntable fixed to the gear ring to rotate. With the cooperation of the detection component, multiple nozzles can be continuously detected, which helps to improve the detection efficiency of the device.

[0019] Furthermore, sliding through holes are provided on both sides of the test box. The number of lifting components is equal to the number of sliding through holes and their positions correspond one-to-one. The lifting components include a connecting frame that is slidably disposed in the sliding through holes and fixedly connected to the lifting plate, a first hydraulic rod fixed to the test box, and a vertical rod that is fixed in the sliding through holes and slidably engaged with the connecting frame. The push rod end of the first hydraulic rod is fixedly connected to the connecting frame.

[0020] The detection assembly includes a mounting bracket fixed to the detection box, a second hydraulic rod fixed to the mounting bracket, a horizontal plate fixed to the push rod end of the second hydraulic rod, and a detection tube fixed to the bottom of the solenoid valve and communicating with the internal channel of the solenoid valve. The solenoid valve is fixed to the bottom of the horizontal plate, and the detection tube is plugged into the nozzle located below it.

[0021] By adopting the above technical solution, the first hydraulic rod operates to extend and retract its push rod end, which in turn drives the connecting frame fixed to the push rod end of the first hydraulic rod and the lifting plate fixed to the connecting frame to rise and fall. This changes the distance between the bottom of the nozzle and the top of the water collection shell, which can be calculated according to the formula.

[0022] Where: r is the spray radius of the nozzle, in meters; θ is the spray angle of the nozzle, in degrees; and h is the distance between the nozzle and the water collection device, in meters. This allows for the adjustment of the nozzle's water distribution performance at different distances, which helps improve the accuracy of the device's detection. Furthermore, the operation of the second hydraulic rod extends and retracts its push rod end, which in turn drives the horizontal plate fixed to the push rod end of the second hydraulic rod, the solenoid valve fixed to the horizontal plate, and the detection tube fixed to the solenoid valve to rise and fall. This enables the connection and separation of the detection tube from the nozzle, and, in conjunction with the rotation of the turntable, allows for continuous detection of multiple nozzles.

[0023] Furthermore, the water return mechanism includes a water return assembly, which includes a drain pipe fixed to the bottom of the water collection shell and connected to the water collection trough of the water collection shell, a water pump fixed to the side wall of the detection box, an inlet pipe fixed and connected to the inlet end of the water pump, and a return pipe fixed and connected to the outlet end of the water pump. The drain pipe is equipped with an electrically controlled valve connected to the control system circuit. The inlet pipe extends into the detection box. The number of drain pipes is equal to the number of water collection troughs and their positions correspond one-to-one. The return pipe is connected to the water storage tank.

[0024] By adopting the above technical solution, after a nozzle completes the test, the power supply to the electric control valve on the drain pipe is turned on and the electric control valve channel is opened. The water in the water collection tank of the water collection shell will be discharged from the drain pipe. At this time, the water pump works, and the water flowing into the test box will be drawn out by the water inlet pipe and discharged back to the water storage tank by the return pipe, so as to realize the recycling of water source and reduce the waste of water resources.

[0025] Furthermore, the water return mechanism also includes a filter assembly, which includes a filter box fixed to the bottom plate of the detection box, a connecting pipe fixed and connected to the filter box, a filter cylinder disposed in the filter box, and a filter element inserted and connected to the filter cylinder. The end of the connecting pipe away from the filter box is fixed and connected to the side wall of the water storage tank. The return pipe is connected to the inside of the filter element. The water return mechanism also includes a sealing assembly for preventing overflow from the inside of the filter element.

[0026] By adopting the above technical solution, the water flow in the return pipe will be discharged into the filter element, and the water flow in the water collection shell will be discharged from the filter element and filter cylinder into the filter box, and finally discharged into the water storage tank through the connecting pipe. The filter components can filter out rust particles in the water flow, reducing the probability of clogging when the device is tested for a long time.

[0027] Furthermore, the sealing assembly includes a partition fixed inside the filter box, a cover plate disposed on the top of the filter box, a sealing block fixed to the bottom of the cover plate and inserted into the filter box, a telescopic tube passing through the cover plate and the top of the sealing block and fixed to the sealing block and the cover plate in sequence, and two third hydraulic rods fixed to the bottom plate of the test box. The protruding part of the sealing block is inserted into the inner wall of the filter element. The filter cartridge is fixed to the inner wall of the partition plate. The telescopic tube is fixed and connected to the return pipe. The lower end of the telescopic tube is connected to the inside of the filter element. The push rod end of the third hydraulic rod is fixedly connected to the cover plate.

[0028] By adopting the above technical solution, the third hydraulic rod extends its push rod end, which in turn drives the cover plate fixed to the push rod end of the third hydraulic rod and the sealing block fixed to the cover plate to rise. Then, the operator can take out the filter element from the filter cartridge and replace it so that the device can work normally.

[0029] Furthermore, an annular plate is fixed inside the detection tube, and a sealing ring coaxially arranged with the bottom of the annular plate is fixed thereon. The sealing ring has an internally hollow annular structure, and the bottom of the sealing ring abuts against the top of the corresponding nozzle. The sealing ring is in a state of compression deformation.

[0030] By adopting the above technical solution, the sealing ring improves the sealing performance when the detection tube is inserted into the nozzle.

[0031] In summary, the present invention has the following beneficial effects: In this application, by improving the prior art, the accuracy of the test results for the nozzle is improved by judging whether the nozzle meets the requirements by measuring the distribution of water flow from the nozzle under different pressures. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0033] Figure 2 This is a schematic diagram of Embodiment 2 of the present invention to highlight the connection structure between the detection box and the lifting plate;

[0034] Figure 3 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention used to highlight the internal structure of the detection box;

[0035] Figure 4 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention, which highlights the connection structure between the water collection shell and the drain pipe;

[0036] Figure 5 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention used to highlight the internal structure of the filter box;

[0037] Figure 6 This is an exploded view of Embodiment 2 of the present invention, highlighting the connection structure between the telescopic tube and the sealing block;

[0038] Figure 7 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention used to highlight the internal structure of the detection tube.

[0039] In the diagram: 1. Water collection shell; 2. Solenoid valve; 3. Nozzle; 4. Control system; 41. Control line; 42. Controller; 5. Gas supply mechanism; 51. Nitrogen cylinder; 52. Gas supply switch; 53. Gas supply pipe; 54. Pressure reducing and stabilizing valve; 6. Water supply mechanism; 61. Water storage tank; 62. Water supply pipe; 63. Flow monitoring sensor; 64. Liquid level monitoring sensor; 65. Water replenishment pipe; 66. Valve; 67. Vent valve; 7. Auxiliary mechanism; 71. Auxiliary component; 711. Detection box; 712. Lifting plate; 713. Turntable; 72. Rotating component; 721. Motor; 722. Gear; 723. Gear ring; 73. Lifting component; 731. Connecting frame; 73 2. First hydraulic rod; 733. Vertical rod; 8. Mounting through hole; 9. Detection assembly; 91. Mounting bracket; 92. Second hydraulic rod; 93. Horizontal plate; 94. Detection tube; 10. Sliding through hole; 11. Water return mechanism; 111. Water return assembly; 1111. Drain pipe; 1112. Water pump; 1113. Water inlet pipe; 1114. Return pipe; 112. Filter assembly; 1121. Filter box; 1122. Connecting pipe; 1123. Filter cartridge; 1124. Filter element; 113. Sealing assembly; 1131. Partition plate; 1132. Cover plate; 1133. Sealing block; 1134. Telescopic tube; 1135. Third hydraulic rod; 12. Annular plate; 13. Sealing ring. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] Example 1: As Figure 1 As shown in the embodiment of this application, a device for testing the water distribution performance of a solid cone-shaped sprinkler head is disclosed, including a water collection shell 1, a control system 4, an air supply mechanism 5, and a water supply mechanism 6. Multiple water collection troughs are provided on the top of the water collection shell 1. Each water collection trough in the water collection shell 1 is equipped with a level sensor. A lifting solenoid valve 2 is installed above the water collection shell 1, and a nozzle 3 connected to the solenoid valve 2 is detachably connected to the solenoid valve 2 and communicates with its internal channel. First, the nozzle 3 to be tested is connected to the solenoid valve 2. The control system 4 adjusts the water supply pressure of the air supply mechanism 5 and the water supply mechanism 6, and simultaneously sets the control time of the control system 4. Then, the control system 4 opens the channel in the solenoid valve 2, the water supply mechanism 6 operates, and water flows through the nozzle 3 to the water collection troughs in the water collection shell 1. At this time, the level sensor in each water collection trough detects and records the volume of water in the corresponding trough and transmits the detection result to the control system 4. The control system 4 then calculates the volume of water according to the formula... The average volume of each water collection tank is calculated, where t is the action time of the water supply mechanism 6 in seconds; Q is the water supply flow rate in L / s; and V is the average spray volume of each water collection tank in L. If the number of water collection tanks with a water volume less than the average volume is ≤4, the sprinkler head 3 is considered to meet the requirements. Subsequently, different water supply pressures are adjusted and water is supplied to the sprinkler head 3, and actions S2, S3, and S4 are repeated. Finally, the values ​​under the above different conditions are combined to determine the water distribution performance of the sprinkler head 3. By analyzing the distribution of the water flow from the sprinkler head 3 under different pressures, the accuracy of the test results for the sprinkler head 3 is improved.

[0042] The control system 4 is located on one side of the water collection shell 1. The control system 4 controls the solenoid valve 2, the gas supply mechanism 5, and the water supply mechanism 6. The control system 4 includes a control line 41 and a controller 42. The control line 41 is electrically connected to the solenoid valve 2. The controller 42 is electrically connected to the control line 41 and is equipped with a display and operation buttons. The gas supply mechanism 5 is located on one side of the water collection shell 1 and is used to increase the water supply pressure of the water supply mechanism 6. The gas supply mechanism 5 includes a nitrogen cylinder 51, a gas supply switch 52, a gas supply pipe 53, and a pressure reducing and stabilizing valve 54. The nitrogen cylinder 51 is located on one side of the water collection shell 1. The gas supply switch 52 is fixed and connected to the top of the nitrogen cylinder 51, and the gas supply pipe 53 is fixed and connected to the outlet end of the gas supply switch 52. The gas supply pipe 53 is connected to the water supply mechanism 6, and the pressure reducing and stabilizing valve 54 is located on the gas supply pipe 53. The solenoid valve 2, the gas supply mechanism 5, and the water supply mechanism 6 can be operated and controlled by the operation button on the operation controller 42 and through the control line 41. In addition, the gas in the nitrogen cylinder 51 is discharged by the gas supply switch 52 and discharged to the water supply mechanism 6 through the gas supply pipe 53. The pressure of the water supply mechanism 6 supplying water to the solenoid valve 2 is controlled according to the amount of gas discharged to ensure that the device can perform normal detection work.

[0043] A water supply mechanism 6 is located on one side of the water collection shell 1 and is used to supply water to the solenoid valve 2. The water supply mechanism 6 includes a water storage tank 61, a water supply pipe 62, a flow monitoring sensor 63, a liquid level monitoring sensor 64, a water replenishment pipe 65, a valve 66, and a vent valve 67. The water storage tank 61 is located on one side of the water collection shell 1. The end of the gas supply pipe 53 away from the nitrogen cylinder 51 is connected to the inside of the water storage tank 61. The water supply pipe 62 is fixed and connected to the side wall of the water storage tank 61, and the flow monitoring sensor 63 is mounted on the water supply pipe 62. The liquid level monitoring sensor 64 is mounted on the water storage tank 61, and the water replenishment pipe 65 is fixed and connected to the top of the water storage tank 61. The end of the water replenishment pipe 65 away from the water storage tank 61 is fixed and connected to the water supply pipe 62, the valve 66 is mounted on the water replenishment pipe 65, and the vent valve 67 is fixed and connected to the water storage tank 61. Gas is discharged from the gas supply pipe 53 into the water storage tank 61, increasing the pressure inside the water storage tank 61. Water from the water storage tank 61 is then discharged from the water supply pipe 62 into the solenoid valve 2. By adjusting the gas flow rate in the gas supply pipe 53, the pressure of the water flow injected into the solenoid valve 2 from the water supply pipe 62 can be changed. In addition, by operating the valve 66, water from the water storage tank 61 can be discharged from the water replenishment pipe 65 into the water supply pipe 62. The water pressure in the water supply pipe 62 can be dynamically controlled to improve the stability of the water pressure.

[0044] This application also discloses a testing method for a water distribution performance testing device for a nozzle 3, characterized by the following steps: S1, connecting the nozzle 3 to be tested to the solenoid valve 2;

[0045] S2. The operation control system 4 adjusts the pressure after the pressure reducing and stabilizing valve 54 according to the pressure required by the water supply mechanism 6, and sets the control system 4 to control the action time.

[0046] S3. The operation control system 4 opens the channel in the solenoid valve 2, the water supply mechanism 6 is activated, and the water flows through the nozzle 3 to the water collection tank in the water collection shell 1.

[0047] S4. The water level sensor in each water collection tank detects and records the volume of water in the corresponding water collection tank, and transmits the detection result to the control system 4. The control system 4 then processes the data according to the formula... Calculate the average volume of each water collection tank, where t is the action time of the water supply mechanism 6 in seconds; Q is the water supply flow rate in L / s; and V is the average water spray volume of each water collection tank in L. If the number of water collection tanks with a water volume less than the average volume is ≤4, the sprinkler head 3 can be judged to meet the requirements.

[0048] S5. Repeat steps S2, S3 and S4 according to the different action pressures that need to be tested for nozzle 3.

[0049] S6. Judge the water distribution performance of nozzle 3 based on the obtained data.

[0050] The following table shows the water distribution performance test standards of nozzle 3 under operating conditions of 0.40MPa, 0.50MPa, 0.60MPa, 0.70MPa, 0.80MPa, and 0.90MPa, according to Example 1 of this application:

[0051]

[0052] Example 2: Figure 2-7 As shown in the embodiment of this application, a device for testing the water distribution performance of a solid cone-shaped sprinkler head is disclosed. It further includes an auxiliary mechanism 7, a testing component 9, and a water return mechanism 11. The auxiliary mechanism 7 is disposed on the water collection shell 1. The auxiliary mechanism 7 includes an auxiliary component 71, a rotating component 72, and a lifting component 73. The auxiliary component 71 includes a testing box 711, a lifting plate 712, and a turntable 713. The testing box 711 is disposed on the testing site and has a hollow structure with an open top. The water collection shell 1 is fixed inside the testing box 711. Sliding through holes 10 are provided on both side walls of the testing box 711, and the lifting plate 712 is slidably disposed inside the testing box 711. The turntable 713 is disposed through the top of the lifting plate 712 and rotatably connected to the lifting plate 712. Multiple mounting through holes 8 are provided on the top of the turntable 713 for placing and limiting the position of the sprinkler head 3. The rotating assembly 72 includes a motor 721, a gear 722, and a gear ring 723. The motor 721 is fixed to the lifting plate 712. The output end of the motor 721 passes through the top of the lifting plate 712 and is rotatably connected to the lifting plate 712. The gear 722 is fixedly sleeved on the output end of the motor 721, and the gear ring 723 is fixedly sleeved on the turntable 713 and meshes with the gear 722. First, multiple nozzles 3 are inserted into the corresponding mounting through holes 8 in sequence. The motor 721 drives the gear 722 to rotate, which in turn drives the gear ring 723 meshing with the gear 722 and the turntable 713 fixed to the gear ring 723 to rotate. With the cooperation of the detection assembly 9, multiple nozzles 3 can be continuously detected, which helps to improve the detection efficiency of the device. First, multiple nozzles 3 are inserted into the corresponding mounting holes 8 in sequence. The motor 721 drives the gear 722 to rotate, which in turn drives the gear ring 723 meshing with the gear 722 and the turntable 713 fixed to the gear ring 723 to rotate. With the cooperation of the detection component 9, multiple nozzles 3 can be continuously detected, which helps to improve the detection efficiency of the device.

[0053] The lifting assembly 73 is used to drive the lifting plate 712 to rise and fall. The number of lifting assemblies 73 is equal to the number of sliding through holes 10, and their positions correspond one-to-one. The lifting assembly 73 includes a connecting frame 731, a first hydraulic rod 732, and a vertical rod 733. The connecting frame 731 is slidably disposed in the sliding through hole 10 and fixedly connected to the lifting plate 712. The first hydraulic rod 732 is fixed to the detection box 711, and the push rod end of the first hydraulic rod 732 is fixedly connected to the connecting frame 731. The vertical rod 733 is fixed in the sliding through hole 10 and slidably engaged with the connecting frame 731. The detection assembly 9 is disposed on the auxiliary mechanism 7. The detection assembly 9 includes a mounting frame 91, a second hydraulic rod 92, a horizontal plate 93, and a detection tube 94. The mounting frame 91 is fixed to the detection box 711, and the second hydraulic rod 92 is fixed to the mounting frame 91. The horizontal plate 93 is fixed to the push rod end of the second hydraulic rod 92, and the solenoid valve 2 is fixed to the bottom of the horizontal plate 93. The detection tube 94 is fixed to the bottom of the solenoid valve 2 and communicates with the internal channel of the solenoid valve 2. The detection tube 94 is plugged into the nozzle 3 located below it. When the first hydraulic rod 732 operates, its push rod end extends and retracts, which drives the connecting frame 731 fixed to the push rod end of the first hydraulic rod 732 and the lifting plate 712 fixed to the connecting frame 731 to rise and fall. This changes the distance between the bottom of the nozzle 3 and the top of the water collection shell 1, which can be calculated according to the formula. Where r is the spray radius of nozzle 3 in meters; θ is the spray angle of nozzle 3 in degrees; and h is the distance between nozzle 3 and the water collection device in meters, this allows for the adjustment of the water distribution performance of nozzle 3 at different distances, which helps improve the accuracy of the device's detection. Furthermore, the operation of the second hydraulic rod 92 extends and retracts its push rod end, which in turn drives the horizontal plate 93 fixed to the push rod end of the second hydraulic rod 92, the solenoid valve 2 fixed to the horizontal plate 93, and the detection tube 94 fixed to the solenoid valve 2 to rise and fall. This enables the connection and separation of the detection tube 94 from the nozzle 3, and, in conjunction with the rotation of the turntable 713, allows for continuous detection of multiple nozzles 3.

[0054] The water return mechanism 11 is mounted on the auxiliary mechanism 7. The water return mechanism 11 includes a water return assembly 111, a filter assembly 112, and a sealing assembly 113. The water return assembly 111 includes a drain pipe 1111, a water pump 1112, an inlet pipe 1113, and a return pipe 1114. The drain pipe 1111 is fixed to the bottom of the water collection shell 1 and communicates with the water collection trough of the water collection shell 1. An electrically controlled valve connected to the control system 4 circuit is installed on the drain pipe 1111. The number of drain pipes 1111 is equal to the number of water collection troughs, and their positions correspond one-to-one. The water pump 1112 is fixed to the side wall of the detection box 711. The inlet pipe 1113 is fixed and connected to the inlet end of the water pump 1112. The inlet pipe 1113 extends into the detection box 711. The return pipe 1114 is fixed and connected to the outlet end of the water pump 1112 and communicates with the water storage tank 61. After a nozzle 3 completes its test, the power supply to the solenoid valve on the drain pipe 1111 is turned on, and the solenoid valve channel is opened. The water in the water collection tank of the water collection shell 1 will be discharged from the drain pipe 1111. At this time, the water pump 1112 works, and the water flowing into the test box 711 will be drawn out by the inlet pipe 1113 and discharged back to the water storage tank 61 by the return pipe 1114. This can realize the recycling of water sources and reduce the waste of water resources.

[0055] The filter assembly 112 includes a filter box 1121, a connecting pipe 1122, a filter cartridge 1123, and a filter element 1124. The filter box 1121 is fixed to the bottom plate of the test box 711. The connecting pipe 1122 is fixed and connected to the filter box 1121, and the end of the connecting pipe 1122 away from the filter box 1121 is fixed and connected to the side wall of the water storage tank 61. The filter cartridge 1123 is disposed inside the filter box 1121. The filter element 1124 is inserted and connected to the filter cartridge 1123, and the return pipe 1114 is connected to the inside of the filter element 1124. The water flow from the return pipe 1114 will be discharged into the filter element 1124. The water flow from the water collection shell 1 will be discharged into the filter box 1121 through the filter element 1124 and the filter cartridge 1123, and finally discharged into the water storage tank 61 through the connecting pipe 1122. The filter assembly 112 can filter the rust particles in the water flow, reducing the probability of clogging when the device is tested for a long time.

[0056] The sealing assembly 113 is used to prevent overflow from the filter element 1124. The sealing assembly 113 includes a partition 1131, a cover plate 1132, a sealing block 1133, a telescopic tube 1134, and a third hydraulic rod 1135. The partition 1131 is fixed inside the filter box 1121, the filter element 1123 is fixed to the inner wall of the partition 1131, and the cover plate 1132 is disposed on the top of the filter box 1121. The sealing block 1133 is fixed to the bottom of the cover plate 1132 and inserted into the filter box 1121. The protrusion of the sealing block 1133 is inserted into the inner wall of the filter element 1124. The telescopic tube 1134 passes through the cover plate 1132 and the top of the sealing block 1133 in sequence and is fixed to the sealing block 1133 and the cover plate 1132. The telescopic tube 1134 is fixed and connected to the return pipe 1114, and the lower end of the telescopic tube 1134 is connected to the inside of the filter element 1124. Two third hydraulic rods 1135 are provided, and the two third hydraulic rods 1135 are fixed to the bottom plate of the test box 711. The push rod end of the third hydraulic rod 1135 is fixedly connected to the cover plate 1132. When the third hydraulic rod 1135 is working, its push rod end extends, which drives the cover plate 1132 and the sealing block 1133 fixed to the push rod end of the third hydraulic rod 1135 to rise. Then, the operator can take out the filter element 1124 from the filter cartridge 1123 and replace it so that the device can work normally.

[0057] An annular plate 12 is fixed inside the detection tube 94. A sealing ring 13, coaxially arranged with the annular plate 12, is fixed at the bottom of the annular plate 12. The sealing ring 13 has an internally hollow annular structure. The bottom of the sealing ring 13 abuts against the top of the corresponding nozzle 3, and the sealing ring 13 is in a state of compression deformation. The setting of the sealing ring 13 improves the sealing performance when the detection tube 94 and the nozzle 3 are inserted.

[0058] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A device for testing the water distribution performance of a solid cone-shaped sprinkler head, characterized in that: The system includes a water collection shell (1) with multiple water collection tanks on the top. A solenoid valve (2) capable of being raised and lowered is provided above the water collection shell (1). A nozzle (3) is connected to the solenoid valve (2). A control system (4), an air supply mechanism (5), and a water supply mechanism (6) are provided on one side of the water collection shell (1). The control system (4) is used to control the solenoid valve (2), the air supply mechanism (5), and the water supply mechanism (6). The water supply mechanism (6) is used to supply water to the solenoid valve (2). The air supply mechanism (5) is used to increase the water supply pressure of the water supply mechanism (6). The control system (4) includes a control line (41) connected to the solenoid valve (2) circuit and a controller (42) connected to the control line (41) circuit. The controller (42) is equipped with a display and operation buttons. The gas supply mechanism (5) includes a nitrogen cylinder (51) located on one side of the water collection shell (1), a gas supply switch (52) fixed and connected to the top of the nitrogen cylinder (51), a gas supply pipe (53) fixed and connected to the gas outlet end of the gas supply switch (52), and a pressure reducing and stabilizing valve (54) located on the gas supply pipe (53). The gas supply pipe (53) is connected to the water supply mechanism (6). An auxiliary mechanism (7) is provided on the water collection shell (1). The auxiliary mechanism (7) is provided with a detection component (9) and a return water mechanism (11). The auxiliary mechanism (7) includes an auxiliary component (71) and a rotating component (72). The auxiliary component (71) includes a detection box (711) with a hollow structure and an open top, which is set on the detection site, a lifting plate (712) that is slidably set in the detection box (711), and a turntable (713) that is set through the top of the lifting plate (712) and rotatably connected to the lifting plate (712). Multiple nozzles (3) are placed and limited through the top of the turntable (713). The mounting through hole (8) is provided. The rotating assembly (72) includes a motor (721) fixed on the lifting plate (712). The output end of the motor (721) passes through the top of the lifting plate (712) and is rotatably connected to the lifting plate (712). The rotating assembly (72) also includes a gear (722) fixedly sleeved on the output end of the motor (721) and a gear ring (723) fixedly sleeved on the turntable (713) and meshing with the gear (722). The water collection shell (1) is fixed inside the detection box (711). The auxiliary mechanism (7) also includes a lifting assembly (73) for driving the lifting plate (712) to rise and fall.

2. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 1, characterized in that: The water supply mechanism (6) includes a water storage tank (61) disposed on one side of the water collection shell (1), a water supply pipe (62) fixed and connected to the side wall of the water storage tank (61), a flow monitoring sensor (63) disposed on the water supply pipe (62), a liquid level monitoring sensor (64) disposed on the water storage tank (61), a water replenishment pipe (65) fixed and connected to the top of the water storage tank (61), a valve (66) disposed on the water replenishment pipe (65), and a vent valve (67) fixed and connected to the water storage tank (61). The end of the gas supply pipe (53) away from the nitrogen cylinder (51) is connected to the inside of the water storage tank (61), and the end of the water replenishment pipe (65) away from the water storage tank (61) is fixed and connected to the water supply pipe (62).

3. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 1, characterized in that: The two side walls of the test box (711) are provided with sliding through holes (10). The number of lifting components (73) is equal to the number of sliding through holes (10) and their positions correspond one-to-one. The lifting components (73) include a connecting frame (731) that is slidably disposed in the sliding through hole (10) and fixedly connected to the lifting plate (712), a first hydraulic rod (732) fixed on the test box (711), and a vertical rod (733) that is fixed in the sliding through hole (10) and slidably cooperates with the connecting frame (731). The push rod end of the first hydraulic rod (732) is fixedly connected to the connecting frame (731). The detection assembly (9) includes a mounting bracket (91) fixed on the detection box (711), a second hydraulic rod (92) fixed on the mounting bracket (91), a horizontal plate (93) fixed to the push rod end of the second hydraulic rod (92), and a detection tube (94) fixed to the bottom of the solenoid valve (2) and communicating with the internal channel of the solenoid valve (2). The solenoid valve (2) is fixed to the bottom of the horizontal plate (93), and the detection tube (94) is plugged into the nozzle (3) located below it.

4. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 1, characterized in that: The water return mechanism (11) includes a water return assembly (111), which includes a drain pipe (1111) fixed to the bottom of the water collection shell (1) and connected to the water collection tank of the water collection shell (1), a water pump (1112) fixed to the side wall of the test box (711), an inlet pipe (1113) fixed and connected to the inlet end of the water pump (1112), and a return pipe (1114) fixed and connected to the outlet end of the water pump (1112). The inlet pipe (1113) extends into the test box (711). The number of drain pipes (1111) is equal to the number of water collection tanks and their positions correspond one-to-one. The return pipe (1114) is connected to the water storage tank (61).

5. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 4, characterized in that: The water return mechanism (11) further includes a filter assembly (112), which includes a filter box (1121) fixed to the bottom plate of the detection box (711), a connecting pipe (1122) fixed and connected to the filter box (1121), a filter cylinder (1123) disposed in the filter box (1121), and a filter element (1124) inserted and connected to the filter cylinder (1123). The end of the connecting pipe (1122) away from the filter box (1121) is fixed and connected to the side wall of the water storage tank (61). The return pipe (1114) is connected to the filter element (1124). The water return mechanism (11) further includes a sealing assembly (113) for preventing overflow from the filter element (1124).

6. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 5, characterized in that: The sealing assembly (113) includes a partition (1131) fixed inside the filter box (1121), a cover plate (1132) disposed on the top of the filter box (1121), a sealing block (1133) fixed to the bottom of the cover plate (1132) and inserted into the filter box (1121), a telescopic tube (1134) passing through the cover plate (1132), the top of the sealing block (1133) and fixed to the sealing block (1133) and the cover plate (1132) in sequence, and two tubes fixed to the test box (7). The third hydraulic rod (1135) on the base plate of 11) is connected to the inner wall of the filter element (1124) by the protrusion of the sealing block (1133), the filter cylinder (1123) is fixed on the inner wall of the partition (1131), the telescopic tube (1134) is fixed and connected to the return pipe (1114), the lower end of the telescopic tube (1134) is connected to the inside of the filter element (1124), and the push rod end of the third hydraulic rod (1135) is fixedly connected to the cover plate (1132).

7. The device for testing the water distribution performance of a solid cone-shaped sprinkler head according to claim 3, characterized in that: An annular plate (12) is fixed inside the detection tube (94). A sealing ring (13) is fixed at the bottom of the annular plate (12) and is coaxially arranged with the annular plate (12). The sealing ring (13) has an internally hollow annular structure. The bottom of the sealing ring (13) is pressed against the top of the corresponding nozzle (3). The sealing ring (13) is in a state of compression deformation.

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