A valve flow resistance testing machine

Abstract

This utility model relates to the field of valve performance testing technology, and discloses a valve flow resistance testing machine, including a cabinet for support and a protective shell for protection. The protective shell is fixedly connected to the upper end face of the cabinet. A testing device for valve flow resistance testing is fixedly installed on the upper end face of the cabinet. A support frame for support is fixedly connected to the bottom middle of the inner wall of the cabinet, and a water storage tank for water supply is fixedly connected to the upper end of the support frame. This utility model uses an automatically rotating water storage box to allow the water spray head to evenly rinse the inner wall of the water storage tank and, together with a scraper, remove deposits, achieving automated and efficient cleaning. After rinsing, the fan blades rotate simultaneously, using forced airflow to quickly dry residual water stains on the inner wall and remove water droplets in blind areas, effectively preventing bacterial growth and secondary scale deposition, thereby significantly improving cleaning efficiency, shortening equipment reset time, and ensuring the stability of the testing environment and the accuracy of data.

Description

Technical Field

[0001] This utility model relates to the field of valve performance testing technology, specifically to a valve flow resistance testing machine. Background Technology

[0002] Valve flow resistance test is a professional testing method that evaluates the resistance characteristics and energy loss of a valve to fluid flow by measuring its flow coefficient and flow resistance coefficient. The flow coefficient reflects the valve's flow capacity under a unit pressure difference, while the flow resistance coefficient characterizes the pressure loss of fluid passing through the valve. During the test, the water storage tank, as a core component of the circulating water system, needs to be cleaned immediately after use to prevent residual sediment in the water storage tank from entering the test pipeline with the water flow during subsequent tests, clogging the sensors or changing the fluid characteristics, thereby affecting the accuracy of subsequent test data.

[0003] Currently, cleaning the water tank of a valve testing machine requires manual disassembly followed by physical brushing or high-pressure water jet rinsing. This method is not only time-consuming but also ineffective in removing stubborn deposits from the corners and edges of the tank. Furthermore, relying on natural air drying or manual wiping after rinsing cannot completely eliminate residual water stains. This residual moisture easily becomes a breeding ground for bacteria in a damp, enclosed environment, while also accelerating the secondary deposition of minerals in the water on the tank walls, forming scale. This negatively impacts the purity of the test water and the reliability of the test data. Therefore, those skilled in the art provide a valve flow resistance testing machine to solve the problems mentioned in the background section. Summary of the Invention

[0004] The purpose of this utility model is to provide a valve flow resistance testing machine to solve the problems mentioned in the background art above.

[0005] This utility model provides the following technical solution: a valve flow resistance testing machine, comprising a cabinet for support and a protective shell for protection, the protective shell being fixedly connected to the upper end face of the cabinet, a testing device for valve flow resistance testing being fixedly installed on the upper end face of the cabinet, a support frame for support being fixedly connected to the bottom middle of the inner wall of the cabinet, a water storage tank for water supply being fixedly connected to the upper end of the support frame, a rinsing assembly for cleaning the water storage tank being installed on the upper end of the water storage tank, and a blower assembly for drying the water storage tank being installed on the top of the inner wall of the cabinet.

[0006] As a preferred embodiment of the above technical solution, the flushing assembly includes connecting rods and infusion tubes. Two connecting rods are provided, symmetrically arranged, and both connecting rods are fixedly connected to the upper end of the water storage tank. The infusion tube is fixedly connected to the top of the inner wall of the cabinet. A fixing ring is fixedly connected between the two connecting rods. A water storage box is rotatably connected to the inner wall of the fixing ring. The output end of the infusion tube is rotatably sleeved in the middle of the water storage box, and the output end of the infusion tube connects to the interior of the water storage box. Multiple connecting pipes arranged in a circular array are connected to the lower end of the water storage box. Spray nozzles are fixedly connected to the output ends of the multiple connecting pipes. An external gear ring is fixedly connected to the upper part of the outer wall of the water storage box. A motor is fixedly installed at the upper end of the cabinet. The output end of the motor passes through the upper end of the cabinet, and a first spur gear is fixedly connected to the output end of the motor. The first spur gear and the external gear ring mesh with each other.

[0007] As a preferred embodiment of the above technical solution, a rotating rod is fixedly connected to the lower end of the water storage box, and two scrapers are fixedly connected to the lower part of the outer wall of the rotating rod. The two scrapers are respectively attached to the inner bottom wall and the inner side wall of the water storage box. The lower inner wall of the water storage box is tapered, and a drain pipe is connected to the lower end of the water storage box. An electromagnetic valve is installed in the drain pipe.

[0008] As a preferred embodiment of the above technical solution, the blower assembly includes a second spur gear, and two second spur gears are provided. Both second spur gears are rotatably connected to the top of the inner wall of the cabinet. The two second spur gears mesh with each other. One of the second spur gears meshes with an external gear ring, and the lower end of the other second spur gear is fixedly connected to a blower fan blade.

[0009] As a preferred embodiment of the above technical solution, casters are fixedly installed at the four corners of the lower end of the cabinet, and multiple self-locking support feet are fixedly installed at the lower end of the cabinet.

[0010] As a preferred embodiment of the above technical solution, a control panel is fixedly installed on the outer wall of the protective shell, a mounting bracket is fixedly installed on the bottom of the inner wall of the cabinet, a water pump is fixedly installed on the upper end of the mounting bracket, the output end of the water pump is installed on the detection device, and the input end of the water pump is connected to the lower part of the inside of the water storage tank.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By injecting water into the infusion tube, the motor drives the first spur gear to engage with the external gear ring, causing the water storage box to rotate. Water is discharged through the rotating spray head to rinse the inner wall of the water storage tank, so that the spray water flow evenly covers all parts of the water storage tank. Combined with the scraper, stubborn deposits are mechanically removed, which significantly improves the cleaning efficiency and realizes automated cleaning of the inner wall of the water storage tank, ensuring the accuracy of subsequent test data.

[0013] 2. After rinsing, stop injecting water into the infusion tube. At this time, under the transmission of the external gear ring and the second spur gear, the fan blades will rotate, which will blow air into the inside of the water tank. The forced airflow will quickly dry the residual water stains on the inner wall of the water tank, avoiding the growth of bacteria or secondary deposition of scale in the humid environment. At the same time, the airflow disturbance can remove small water droplets in the spray blind area, significantly shortening the equipment reset time and enhancing the stability of the test environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the valve flow resistance testing machine;

[0015] Figure 2 This is a side view of the main structure of the valve flow resistance testing machine;

[0016] Figure 3 This is a schematic diagram of the flushing assembly structure of a valve flow resistance testing machine;

[0017] Figure 4 This is a schematic diagram of the air blowing assembly structure of a valve flow resistance testing machine.

[0018] 1. Cabinet; 2. Protective shell; 3. Detection device; 4. Support frame; 5. Water tank; 6. Flushing assembly; 601. Connecting rod; 602. Infusion tube; 603. Fixing ring; 604. Water storage box; 605. Connecting pipe; 606. Spray head; 607. External gear ring; 608. Motor; 609. First spur gear; 610. Rotating rod; 611. Scraper; 612. Drain pipe; 613. Solenoid valve; 7. Blower assembly; 701. Second spur gear; 702. Blower fan blade; 8. Casters; 9. Self-locking support feet; 10. Control panel; 11. Mounting bracket; 12. Water pump. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a valve flow resistance testing machine, including a cabinet 1 for support and a protective shell 2 for protection. The protective shell 2 is fixedly connected to the upper end face of the cabinet 1. A testing device 3 for valve flow resistance testing is fixedly installed on the upper end face of the cabinet 1. A support frame 4 for support is fixedly connected to the middle of the bottom of the inner wall of the cabinet 1. A water storage tank 5 for water supply is fixedly connected to the upper end of the support frame 4. A rinsing assembly 6 for cleaning the water storage tank 5 is installed on the upper end of the water storage tank 5. A blowing assembly 7 for drying the water storage tank 5 is installed on the top of the inner wall of the cabinet 1.

[0021] As one implementation method in this embodiment, please refer to Figure 1 - Figure 3 As shown, the flushing assembly 6 includes connecting rods 601 and infusion tubes 602. Two connecting rods 601 are provided, and the two connecting rods 601 are symmetrically arranged. Both connecting rods 601 are fixedly connected to the upper end of the water storage tank 5. The infusion tube 602 is fixedly connected to the top of the inner wall of the cabinet 1. A fixing ring 603 is fixedly connected between the two connecting rods 601. A water storage box 604 is rotatably connected to the inner wall of the fixing ring 603. The output end of the infusion tube 602 is rotatably sleeved in the middle of the water storage box 604. The output end is connected to the inside of the water storage box 604. The lower end of the water storage box 604 is connected to multiple connecting pipes 605 arranged in a ring array. The output ends of the multiple connecting pipes 605 are all fixedly connected to the spray nozzles 606. An external gear ring 607 is fixedly connected to the upper part of the outer wall of the water storage box 604. A motor 608 is fixedly installed at the upper end of the cabinet 1. The output end of the motor 608 passes through the upper end of the cabinet 1, and the output end of the motor 608 is fixedly connected to the first spur gear 609. The first spur gear 609 and the external gear ring 607 mesh with each other.

[0022] A rotating rod 610 is fixedly connected to the lower end of the water storage box 604. Two scrapers 611 are fixedly connected to the lower part of the outer wall of the rotating rod 610. The two scrapers 611 are respectively attached to the inner bottom wall and the inner side wall of the water storage tank 5. The lower inner wall of the water storage tank 5 is tapered. The lower end of the water storage tank 5 is connected to a drain pipe 612. A solenoid valve 613 is installed in the drain pipe 612.

[0023] Furthermore, the valve to be tested is installed on the testing device 3. The testing device 3 is existing technology, in which a fluid supply device provides fluid at a certain flow rate and pressure. When the fluid passes through the valve, a pressure sensor records the pressure change of the fluid. The data acquisition system calculates the flow resistance value based on Bernoulli's equation and the continuity equation, thereby evaluating the valve's resistance performance to fluid flow. Further details are omitted here. After the test is completed, the solenoid valve 613 is opened, draining the water from the water storage tank 5 through the drain pipe 612 and injecting water into the infusion pipe 602. The output end of the machine 608 drives the first spur gear 609 to rotate. The first spur gear 609 meshes with the external gear ring 607. The rotation of the external gear ring 607 drives the water storage box 604 to rotate. Water is discharged through the rotating spray head 606 to rinse the inner wall of the water storage tank 5, so that the spray water flow evenly covers all parts of the water storage tank 5. The rotating rod 610 below the water storage box 604 rotates synchronously, so that the water flow, together with the scraper 611, mechanically scrapes away stubborn deposits, significantly improving cleaning efficiency and realizing automated cleaning of the inner wall of the water storage tank 5, ensuring the accuracy of subsequent test data.

[0024] As one implementation method in this embodiment, please refer to Figure 1 and Figure 4As shown, the blower assembly 7 includes a second spur gear 701. There are two second spur gears 701. Both second spur gears 701 are rotatably connected to the top of the inner wall of the cabinet 1. The two second spur gears 701 mesh with each other. One of the second spur gears 701 meshes with the external gear ring 607. The lower end of the other second spur gear 701 is fixedly connected to the blower fan blade 702.

[0025] Furthermore, after rinsing, water injection into the infusion tube 602 is stopped. The external gear ring 607 rotates, driving the second spur gear 701 to rotate. The other second spur gear 701 rotates, causing the fan blades 702 to rotate, which blows air into the inside of the water storage tank 5. The forced airflow quickly dries the residual water stains on the inner wall of the water storage tank 5, preventing bacteria from growing or secondary scale from depositing in a humid environment. At the same time, the airflow disturbance can remove small water droplets in the blind spots of the spray. By replacing the traditional static drying with physical drying, the equipment reset time is significantly shortened and the stability of the test environment is enhanced.

[0026] As one implementation method in this embodiment, please refer to Figure 1 - Figure 2 As shown, casters 8 are fixedly installed at the four corners of the lower end of cabinet 1, and multiple self-locking support feet 9 are fixedly installed at the lower end of cabinet 1.

[0027] Furthermore, the casters 8 facilitate the movement and positioning of the equipment, significantly improving operational flexibility. The self-locking support feet 9 typically consist of an adjustable height screw mechanism, a locking nut, and an anti-slip base. The principle is to adjust the height of the anti-slip base to contact the ground by rotating the screw, and then use the locking nut to fix the position, preventing the cabinet 1 from shifting due to vibration or load changes during the test, thus ensuring test accuracy and safety.

[0028] As one implementation method in this embodiment, please refer to Figure 1 - Figure 2 As shown, a control panel 10 is fixedly installed on the outer wall of the protective shell 2, and a mounting bracket 11 is fixedly installed on the bottom of the inner wall of the cabinet 1. A water pump 12 is fixedly installed on the upper end of the mounting bracket 11. The output end of the water pump 12 is installed on the detection device 3, and the input end of the water pump 12 is connected to the lower part of the interior of the water storage tank 5.

[0029] Furthermore, the control panel 10 is existing technology and can achieve centralized control and remote flow regulation through a touch screen. Its core functions include inverter frequency display and regulating valve opening control to ensure accurate and reliable test data, which will not be elaborated here. The water pump 12 provides stable fluid power to deliver water to the detection device 3.

[0030] Working principle: After the test is completed, the solenoid valve 613 is opened, draining the water from the water storage tank 5 through the drain pipe 612 and injecting water into the infusion pipe 602. The output end of the motor 608 drives the first spur gear 609 to rotate. The first spur gear 609 meshes with the external gear ring 607. The rotation of the external gear ring 607 drives the water storage box 604 to rotate. Water is discharged through the rotating spray head 606 to rinse the inner wall of the water storage tank 5, so that the spray water flow evenly covers all parts of the water storage tank 5. The rotating rod 610 below the water storage box 604 rotates synchronously, so that the water flow, together with the scraper 611, mechanically scrapes away stubborn deposits. Significantly improves cleaning efficiency, enabling automated cleaning of the inner wall of the water storage tank 5, ensuring the accuracy of subsequent test data. After rinsing, water injection into the infusion tube 602 is stopped, and the external gear ring 607 rotates, driving the second spur gear 701 to rotate, causing the blower blades 702 to rotate, which blows air into the inside of the water storage tank 5. The forced airflow quickly dries the residual water stains on the inner wall of the water storage tank 5, preventing bacteria growth or secondary scale deposition in a humid environment. At the same time, the airflow disturbance can remove small water droplets in the blind spots of the spray. By replacing the traditional static drying with physical drying, the equipment reset time is significantly shortened and the stability of the test environment is enhanced.

[0031] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A valve flow resistance testing machine, comprising a cabinet (1) for support and a protective shell (2) for protection, characterized in that: The protective shell (2) is fixedly connected to the upper surface of the cabinet (1). A testing device (3) for valve flow resistance test is fixedly installed on the upper surface of the cabinet (1). A support frame (4) for support is fixedly connected to the middle of the bottom of the inner wall of the cabinet (1). A water storage tank (5) for water supply is fixedly connected to the upper end of the support frame (4). A rinsing assembly (6) for cleaning the water storage tank (5) is installed on the upper end of the water storage tank (5). A blower assembly (7) for drying the water storage tank (5) is installed on the top of the inner wall of the cabinet (1).

2. The valve flow resistance testing machine according to claim 1, characterized in that: The flushing assembly (6) includes connecting rods (601) and infusion tubes (602). Two connecting rods (601) are provided, and the two connecting rods (601) are symmetrically arranged. Both connecting rods (601) are fixedly connected to the upper end of the water storage tank (5). The infusion tube (602) is fixedly connected to the top of the inner wall of the cabinet (1). A fixing ring (603) is fixedly connected between the two connecting rods (601). A water storage box (604) is rotatably connected to the inner wall of the fixing ring (603). The output end of the infusion tube (602) is rotatably sleeved in the middle of the water storage box (604). The output end of the device is connected to the interior of the water storage box (604). The lower end of the water storage box (604) is connected to multiple connecting pipes (605) arranged in a ring array. The output ends of the multiple connecting pipes (605) are all fixedly connected to the spray nozzles (606). An external gear ring (607) is fixedly connected to the upper part of the outer wall of the water storage box (604). A motor (608) is fixedly installed at the upper end of the cabinet (1). The output end of the motor (608) passes through the upper end of the cabinet (1), and the output end of the motor (608) is fixedly connected to the first spur gear (609). The first spur gear (609) and the external gear ring (607) mesh with each other.

3. The valve flow resistance testing machine according to claim 2, characterized in that: A rotating rod (610) is fixedly connected to the lower end of the water storage box (604). Two scrapers (611) are fixedly connected to the lower part of the outer wall of the rotating rod (610). The two scrapers (611) are respectively attached to the inner bottom wall and the inner side wall of the water storage tank (5). The lower inner wall of the water storage tank (5) is tapered. The lower end of the water storage tank (5) is connected to a drain pipe (612). An electromagnetic valve (613) is installed in the drain pipe (612).

4. The valve flow resistance testing machine according to claim 2, characterized in that: The blower assembly (7) includes a second spur gear (701). There are two second spur gears (701). Both second spur gears (701) are rotatably connected to the top of the inner wall of the cabinet (1). The two second spur gears (701) mesh with each other. One of the second spur gears (701) meshes with an external gear ring (607). The lower end of the other second spur gear (701) is fixedly connected to a blower fan blade (702).

5. The valve flow resistance testing machine according to claim 1, characterized in that: The cabinet (1) is fixedly equipped with casters (8) at the four corners of the lower end, and the cabinet (1) is fixedly equipped with multiple self-locking support feet (9).

6. The valve flow resistance testing machine according to claim 1, characterized in that: A control panel (10) is fixedly installed on the outer wall of the protective shell (2). A mounting bracket (11) is fixedly installed on the bottom of the inner wall of the cabinet (1). A water pump (12) is fixedly installed on the upper end of the mounting bracket (11). The output end of the water pump (12) is installed on the detection device (3). The input end of the water pump (12) is connected to the lower part of the water storage tank (5).

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