Multifunctional pressure boosting, stabilizing and flow testing device and implementation method thereof

Abstract

The invention discloses a multifunctional pressure boosting and stabilizing and flow testing device and an implementation method thereof, belongs to the technical field of flow testing, and solves the problems of complicated detection procedures, low efficiency, high cost, non-uniform standards and the like of an air conditioning water system. The device comprises a water replenishing tank, a water replenishing pipe and a water circulation system, the water circulation system is provided with a plurality of pipelines, a ball valve, a filter, a supercharging device, a flow meter and other parts, five water circulation structures can be built through valve switching, and the device adapts to equipment to be detected with / without a circulating pump, a hydraulic module and combined online detection of an air conditioner host and the hydraulic module. The implementation method is divided into three types to adapt to different to-be-detected objects, system connection, water supplement, pressurization and pressure stabilization leakage detection are sequentially completed, and the flow lift and the heating / cooling efficiency of an air conditioner host can be measured. The device is integrated in design, coherent in detection process, low in cost, accurate in result, safe and convenient to operate, uniform in detection standard and suitable for large-scale production detection requirements.

Description

Technical Field

[0001] This invention relates to a pressure boosting and stabilizing device and a method for testing flow rate, particularly a multifunctional pressure boosting and stabilizing device and a method for testing flow rate, belonging to the field of flow rate testing technology. Background Technology

[0002] In the production and testing of air conditioning unit water circulation devices and supporting hydraulic modules, the two core operations of water system pressure holding and stabilization sealing test and flow test are generally carried out separately and independently, which has many industry pain points: multiple test conditions need to be set up, and pipelines need to be repeatedly disassembled and reassembled, making the testing process cumbersome and significantly increasing the workload; the disjointed testing process leads to low overall testing efficiency, making it difficult to adapt to the pace of large-scale, high-efficiency production and testing; separate testing requires more equipment resources and space, and repeated operations increase the consumption of test consumables, keeping production and testing costs high; at the same time, different testing equipment and different operation links can easily lead to inconsistent testing standards, increase human testing errors, and are not conducive to the company's unified quality control. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies for pressurization and stabilization devices and flow testing devices for air conditioning unit water circulation devices, which suffer from high workload, low efficiency, and high production and testing costs. This invention provides a multifunctional pressurization and stabilization device and its implementation method, which can reduce workload, improve work efficiency, and lower production and testing costs.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a multifunctional pressure boosting and stabilizing device for testing flow rate, comprising a water supply tank, a water supply pipe, and a water circulation system. The water supply tank includes a tap water inlet pipe and a drain / sewage valve pipe. The tap water inlet pipe is located on one side of the upper part of the water supply tank, and a tap water inlet valve is installed on the tap water inlet pipe. The drain / sewage valve pipe is located on one side of the bottom of the water supply tank, and a drain / sewage valve is installed on the drain / sewage valve pipe. The water supply pipe is located below the water supply tank, and its upper end is connected to the middle of the bottom of the water supply tank. The water circulation system is located below the water supply tank, and the ball valve G is installed on the water supply pipe.

[0005] The water circulation system includes an inlet pipe, a device under test (DUT) A, a return pipe A, a device under test (DUT) B, a return pipe B, a hydraulic module A, a hydraulic module B, an air conditioning unit water circulation device, and connecting pipes. The left end of the inlet pipe is connected to the left end of the return pipe A and then connected to the lower end of the makeup water pipe. A circulating water pump is installed in the device under test A and the hydraulic module A, but no circulating water pump is installed in the device under test B and the hydraulic module B. An inlet and an outlet are provided on one side of the lower part of the air conditioning unit water circulation device. The air conditioning unit water circulation device is an air source heat pump (or chiller) unit.

[0006] An automatic pressure relief valve, a ball valve D, and a Y-type filter A are installed on the water inlet pipe from left to right; a pressure boosting pipe is installed below the automatic pressure relief valve, and a water boosting device is installed below the pressure boosting pipe. The upper end of the pressure boosting pipe is connected to the automatic pressure relief valve, and the lower end of the pressure boosting pipe is connected to the water boosting device. A ball valve F is installed on the pressure boosting pipe.

[0007] The return water pipe A is equipped with a ball valve C, a flow meter, and a ball valve E from right to left; the return water pipe B is equipped with a ball valve A, a Y-type filter B, a circulating water pump, and a ball valve B from right to left; the upper left end of the return water pipe B is connected to the ball valve C and the flow meter of the return water pipe A.

[0008] The right end of the inlet pipe is connected to the upper side of the device under test A, and the lower side of the device under test A is connected to the right end of the return pipe A, so that the inlet pipe, the device under test A and the return pipe A form a water circulation structure A;

[0009] When the water supply tank and water circulation structure A are connected through the water supply pipe, close ball valves F and B, and open ball valves G, D, C and E at the same time. Water circulation structure A is in the water supply state.

[0010] After the water circulation structure A is filled with water, close the ball valve G and open the ball valve F to turn on the water pressurization device. The water circulation structure A is in a pressurization state. Stabilize the pressure for a certain period of time. If the pressure drops during the stabilization period, it indicates that there is a leakage problem in the water circuit of the device under test A. It is necessary to check the pipe fittings in the water circuit of the device under test A, eliminate the leakage point, and ensure that the water circuit is effectively sealed.

[0011] In the water circulation structure A, the device under test A can be a hydraulic module A. The device under test A is installed on the right side of the hydraulic module A, and a circulating water pump is installed on the lower left side of the hydraulic module A. The right end of the inlet pipe is connected to the upper left side of the hydraulic module A, and the right end of the return pipe A is connected to the lower left side of the hydraulic module A, so that the inlet pipe, the hydraulic module A, and the return pipe A form a water circulation structure B. The water replenishment state and the pressurization state of the water circulation structure B are the same as those of the water circulation structure A.

[0012] The right end of the inlet pipe is connected to the upper side of the device under test A, and the lower side of the device under test B is connected to the right end of the return pipe B, so that the inlet pipe, the device under test B and the return pipe B form a water circulation structure C;

[0013] When ball valves F and C are closed, and ball valves D, A, B, E, and G are opened simultaneously, water circulation structure C is in a water replenishment state.

[0014] When the water circulation structure C is filled with water, close the ball valve G, open the ball valve F, and start the water pressurization device. The water circulation structure C is then in a pressurized state.

[0015] In the water circulation structure C, the device under test B can be a hydraulic module B, and the device under test B is arranged on the right side of the hydraulic module B; the right end of the inlet pipe is connected to the upper left side of the hydraulic module B, and the right end of the return pipe B is connected to the lower left side of the hydraulic module B, so that the inlet pipe, the hydraulic module B and the return pipe B form a water circulation structure D; the water replenishment state and the pressurization state of the water circulation structure D are the same as those of the water circulation structure C.

[0016] The right end of the inlet pipe is connected to the inlet of the air conditioner unit's water circulation device, and the outlet of the air conditioner unit's water circulation device is connected to the upper side of the hydraulic module B through a connecting pipe. The lower side of the hydraulic module B is connected to the right end of the return water pipe B, so that the inlet pipe, the air conditioner unit's water circulation device, the hydraulic module B, and the return water pipe B form a water circulation structure E; the water replenishment state and pressurization state of the water circulation structure E are the same as those of the water circulation structure C.

[0017] A method for implementing a multifunctional pressure boosting and stabilizing device for testing flow rate: When the device under test is device A with a built-in circulating pump or hydraulic module A, the method includes the following steps:

[0018] (1) Connect the water circulation system: Connect the device under test A or hydraulic module A to the inlet pipe, and then connect the return pipe A to form water circulation structure A or water circulation structure B;

[0019] (2) Water replenishment for the water circulation system: Close ball valves F and B, then open ball valves D, C, and E, and then open ball valve G to replenish water to pipeline A of the water circulation structure;

[0020] (3) Water circulation system pressurization: After the entire water system is filled with water, close ball valve G, open ball valve F, and turn on the water pressurization device to pressurize the entire water system;

[0021] (4) Pressure stabilization and testing for leaks in the water circuit of the equipment: pressurize to the set value, close the ball valve F, and stabilize the pressure for a certain period of time; if the pressure drops within the stabilization time, it indicates that there is a leak in the water circuit of the equipment under test. The pipe fittings on the water circuit of the equipment under test need to be checked to eliminate the leak and ensure that the water circuit is effectively sealed.

[0022] (5) Flow rate and head measurement: After the equipment under test has been pressure stabilized and confirmed to have no leakage, the water pump of the equipment under test can be tested for flow rate and head; close the ball valve F connected to the water booster device, and then turn on the circulating water pump; adjust the opening of the ball valve E to adjust different pressures and achieve different head water flow rates to test whether the water pump meets the design and actual needs.

[0023] It can also be combined with the air conditioning unit's water + hydraulic module for online testing. It can heat water from an initial temperature of 25°C to 45°C for domestic use or from an initial temperature of 35°C to 7°C for air conditioning, and measure the required working time of the air conditioning unit. Of course, users can use initial water of different temperatures and use the air conditioning unit to achieve different time periods of temperature requirements for testing.

[0024] When the device under test is device B without a circulation pump or hydraulic module B, the following steps are included:

[0025] (1) Connect the water circulation system: Connect the device under test B or the hydraulic module B to the inlet pipe, and then connect the return pipe A to form a water circulation structure C or a water circulation structure D.

[0026] (2) Water replenishment for the water circulation system: close ball valves F and C, open ball valves D, A, B and E, and then open ball valve G to replenish water to the water pipes of water circulation structure C and water circulation structure D;

[0027] The remaining process is the same as when the device under test is device A with its own circulating pump or hydraulic module A.

[0028] When testing a combination of the main unit's water circulation device and hydraulic module B, the following steps are included:

[0029] (1) Connect the water circulation system: Connect the air conditioning unit water circulation device + hydraulic module B to the inlet pipe, and then connect the return pipe B to form the water circulation structure E;

[0030] (2) Water replenishment for the water circulation system: Close ball valves F and C, open ball valves D, A, B and E, and then open ball valve G to replenish the water pipes of the water circulation structure E;

[0031] The remaining process is the same as when the device under test is device A with its own circulating pump or hydraulic module A.

[0032] When the device under test is a combination of the main unit water circulation device and hydraulic module B, it can realize the measurement of the working time required for the air conditioning unit to heat the initial water of a certain volume tank from 25℃ to 45℃ for domestic water or from 35℃ to 7℃ for air conditioning water. Of course, users can realize different initial water temperatures and use the air conditioning unit to achieve different time periods for testing to meet different temperature requirements.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. Integrated design simplifies the testing process: The water system pressure holding and stabilizing sealing test and flow head test are integrated into the same device, eliminating the need for multiple disassembly and assembly of pipelines and replacement of testing equipment, greatly reducing manual operation steps, reducing the labor intensity of staff, and solving the problem of cumbersome traditional testing procedures;

[0035] 2. Rapid switching between multiple structures to adapt to all testing needs: Multiple water circulation structures can be quickly set up by switching valves to meet the diverse testing needs of equipment under test with or without circulation pumps, hydraulic modules, and air conditioning units and hydraulic modules connected together. The testing process is seamless and without redundancy, which greatly improves production testing efficiency and adapts to the cycle time requirements of large-scale production.

[0036] 3. Reduce costs from multiple dimensions and achieve efficient use of resources: reduce the procurement and maintenance costs of multiple sets of dedicated testing equipment; simplify the operation process to reduce labor input and test consumable consumption; eliminate the need to plan separate sites for different testing processes, saving production site resources; the device is easy to operate, reducing the professional requirements for testing personnel and reducing personnel training costs, thus effectively reducing production testing costs from multiple dimensions.

[0037] 4. Comprehensive testing functions, covering the entire product testing process: It can not only complete routine pressure holding, pressure stabilization, leak detection and flow head testing, but also determine the heating / cooling efficiency and working time of the air conditioning unit through combined online testing, covering the entire process testing needs of air conditioning water system related products from single equipment, hydraulic modules to combined online testing.

[0038] 5. Accurate test results ensure product quality: The dual Y-type filter effectively filters impurities in the water system, preventing them from affecting test accuracy and equipment operation; the high-precision flow meter achieves accurate measurement of water flow, and with the ball valve opening adjustment, flow tests can be completed under different head conditions; the pressure boosting and stabilizing system can accurately detect water system leaks, ensuring the water system sealing and hydraulic performance of air conditioning water system related products from the source, and improving product quality.

[0039] 6. Safe and convenient operation, strong practicality and adaptability: Multiple ball valves enable quick switching of test structures; the tap water inlet and drainage design of the water tank enables rapid water replenishment and cleaning of the water circuit; the water hose with quick connector greatly improves pipeline connection efficiency; the automatic pressure relief valve effectively prevents water circuit overpressure and ensures the safety of the testing process; the overall device structure is reasonably designed, with a low operating threshold, and can be quickly put into use in various production and testing sites.

[0040] 7. Unify testing standards and improve the level of production standardization: By standardizing the testing process and unifying the testing equipment, the problem of inconsistent testing standards caused by different equipment and operations in traditional separate testing is avoided. This reduces testing errors caused by human operation, facilitates quality control and production management for enterprises, and improves the overall level of production standardization. Attached Figure Description

[0041] Figure 1 It is: a connection diagram of the water supply tank, water supply pipe, and water circulation structure A (inlet pipe, device under test A, and return pipe A);

[0042] Figure 2 It is: a connection diagram of the water supply tank, water supply pipe, and water circulation structure B (inlet pipe, hydraulic module A, and return pipe A);

[0043] Figure 3 It is: a connection diagram of the water supply tank, water supply pipe, and water circulation structure C (inlet pipe, device under test B, and return pipe B);

[0044] Figure 4 It is: a connection diagram of the water supply tank, water supply pipe, and water circulation structure D (inlet pipe, hydraulic module B, and return pipe B);

[0045] Figure 5 It is: a connection diagram of the water supply tank, water supply pipe, and water circulation structure E (water inlet pipe, air conditioning unit water circulation device, hydraulic module B and return water pipe B).

[0046] Figure Labeling: 1. Water Supply Tank; 2. Water Supply Pipe; 3. Water Hose with Quick Connector; 4. Tap Water Inlet Pipe; 5. Drainage / Sewage Valve Pipe; 6. Tap Water Inlet Valve; 7. Drainage / Sewage Valve; 8. Ball Valve G; 9. Inlet Pipe; 10. Test Device A; 11. Return Water Pipe A; 12. Test Device B; 13. Hydraulic Module A; 14. Hydraulic Module B; 15. Air Conditioning Unit Water Circulation Device; 16. Connecting Pipe; 17. Circulating Water Pump; 18. Inlet; 19. Outlet; 20. Automatic Pressure Relief Valve; 21. Ball Valve D; 22. Y-Type Filter A; 23. Booster Pipe; 24. Water Booster Device; 25. Ball Valve F; 26. Ball Valve C; 27. Flow Meter; 28. Ball Valve E; 29. ​​Ball Valve A; 30. Y-Type Filter B; 31. Ball Valve B; 32. Water Circulation Structure A; 33. Water Circulation Structure B; 34. Water Circulation Structure C 35. Water circulation structure D 36. Water circulation structure E 37. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Example 1:

[0049] This embodiment discloses a multifunctional pressure boosting and stabilizing device for flow testing, as shown in Figures 1 to 5. This device integrates a water supply tank 1, a water supply pipe 2, and a water circulation system. The overall design is integrated, enabling unified operation of pressure holding, stabilizing, leak detection, and flow / head testing, significantly simplifying the testing process and reducing pipeline disassembly and assembly procedures. The water supply tank 1 is equipped with a tap water inlet pipe 4 and a drain / sewage valve pipe 5. The tap water inlet pipe 4 is located on the upper side of the water supply tank 1 and is equipped with a tap water inlet valve 6 for rapid water supply control. The drain / sewage valve pipe 5 is located on the bottom side of the water supply tank 1 and is equipped with a drain / sewage valve 7 for easy water cleaning and impurity discharge. The water supply pipe 2 is located below the water supply tank 1, with its upper end connected to the middle of the bottom of the water supply tank 1. A ball valve G8 is installed on the water supply pipe 2 for precise control of water supply flow, providing convenient operation and strong controllability.

[0050] The water circulation system includes an inlet pipe 9, a device under test (DUT) A10, a return pipe A11, a DUT B12, a return pipe B13, a hydraulic module A14, a hydraulic module B15, an air conditioning unit water circulation device 16, and a connecting pipe 17. The left end of the inlet pipe 9 connects to the left end of the return pipe A11, and then connects to the lower end of the makeup water pipe 2. The pipe layout is compact, saving installation space. The DUT A10 and hydraulic module A14 have built-in circulating water pumps 18, while the DUT B12 and hydraulic module B15 do not. The device is adaptable to DUTs of different structures, exhibiting strong compatibility. The air conditioning unit water circulation device 16 is an air source heat pump (or chiller) unit, with an inlet 19 and an outlet 20 on one side of its lower part, meeting the testing requirements of the core equipment of the air conditioning water system.

[0051] An automatic pressure relief valve 21, a ball valve D22, and a Y-type filter A23 are installed sequentially from left to right on the water inlet pipe 9. The automatic pressure relief valve 21 can effectively prevent overpressure in the water circuit and ensure the safety of the testing process. The Y-type filter A23 can filter impurities in the water circuit and avoid impurities affecting the testing accuracy. The pressure relief valve 21 is connected to a booster pipe 24 below, and the lower end of the booster pipe 24 is connected to a water booster device 25. A ball valve F26 is installed on the booster pipe 24, which can flexibly control the opening and closing of the booster passage and achieve precise booster operation.

[0052] From right to left, ball valve C27, flow meter 28, and ball valve E29 are installed on return water pipe A11. The high-precision flow meter 28 can accurately measure water flow and provide accurate data for flow testing. From right to left, ball valve A30, Y-type filter B31, circulating water pump 18, and ball valve B32 are installed on return water pipe B13. The design of dual Y-type filters (Y-type filter A23 and Y-type filter B31) can further improve the impurity filtration effect, protect the equipment, and ensure the detection accuracy. The upper left end of return water pipe B13 is connected to ball valve C27 and flow meter 28 on return water pipe A11. Through the coordinated switching of each ball valve, different water circulation structures can be quickly set up to adapt to diverse detection needs.

[0053] As shown in Figure 1, the right end of the inlet pipe 9 is connected to the upper side of the device under test A10, and the lower side of the device under test A10 is connected to the right end of the return pipe A11, forming a water circulation structure A33. After the water supply tank 1 and the water circulation structure A33 are connected through the water supply pipe 2, ball valves F26 and B32 are closed, while ball valves G8, D22, C27, and E29 are opened. The water circulation structure A33 enters the water supply state. The valve operation logic is clear and easy to operate. When the water circulation structure A33 is full of water, ball valve G8 is closed, ball valve F26 is opened, and the water booster device 25 is turned on. The water circulation structure A33 enters the booster state. After stabilizing the pressure for a certain period of time, if the pressure decreases during the stabilization period, it indicates that the device under test A10 is in a pressurized state. If there is a leak in the water system, the pipes and fittings on the water system need to be inspected to eliminate the leak and ensure that the water system is effectively sealed. This step can accurately identify the leak and ensure the water system's sealing performance from the source.

[0054] As shown in Figure 2, based on the water circulation structure A33, the device under test A10 is replaced with a hydraulic module A14. The device under test A10 is located on the right side of the hydraulic module A14, and a circulating water pump 18 is located on the lower left side. The right end of the inlet pipe 9 is connected to the upper left side of the hydraulic module A14, and the right end of the return pipe A11 is connected to the lower left side of the hydraulic module A14, thus forming the water circulation structure B34. The water replenishment and pressurization operations of the water circulation structure B34 are completely consistent with those of the water circulation structure A33, without the need to readjust the operation process, reducing the learning cost for operators and improving testing efficiency.

[0055] As shown in Figure 3, the right end of the inlet pipe 9 is connected to the upper side of the device under test A10, and the lower side of the device under test B12 is connected to the right end of the return pipe B13, forming a water circulation structure C35. Ball valves F26 and C27 are closed, while ball valves D22, A30, B32, E29, and G8 are opened, putting the water circulation structure C35 into a water replenishment state. Once the water circulation structure C35 is full, ball valve G8 is closed, ball valve F26 is opened, and the water booster device 25 is activated, putting the water circulation structure C35 into a pressurized state. This simple valve switching allows for the conversion between pumped and pumpless equipment testing structures, resulting in highly efficient operation.

[0056] As shown in Figure 4, based on the water circulation structure C35, the device under test B12 is replaced with a hydraulic module B15. The device under test B12 is installed on the right side of the hydraulic module B15. The right end of the inlet pipe 9 is connected to the upper left side of the hydraulic module B15, and the right end of the return pipe B13 is connected to the lower left side of the hydraulic module B15, thus forming the water circulation structure D36. The water replenishment and pressurization operations of the water circulation structure D36 are the same as those of the water circulation structure C35. There are no redundant steps in the structure switching, which is suitable for the testing cycle of large-scale production.

[0057] As shown in Figure 5, the right end of the inlet pipe 9 is connected to the inlet 19 of the air conditioning unit water circulation device 16, the outlet 20 of the air conditioning unit water circulation device 16 is connected to the upper side of the hydraulic module B15 through the connecting pipe 17, and the lower side of the hydraulic module B15 is connected to the right end of the return pipe B13, forming a water circulation structure E37; the water replenishment and pressurization operation of the water circulation structure E37 is the same as that of the water circulation structure C35.

[0058] This embodiment also discloses the implementation method of the above-mentioned multifunctional booster and voltage stabilizer, and flow rate testing device, as shown in Figure 1 and... Figure 2 As shown, when the device under test is device A10 with a built-in circulation pump or hydraulic module A14, the following steps are included:

[0059] (1) Connect the water circulation system: Connect the device under test A10 or the hydraulic module A14 to the inlet pipe 9, and then connect the return pipe A11 to form a water circulation structure A33 or a water circulation structure B34. The pipe connection method is simple and the assembly can be completed quickly.

[0060] (2) Water replenishment for the water circulation system: close ball valves F26 and B32, open ball valves D22, C27, and E29, and then open ball valve G8 to replenish water to the A33 pipeline of the water circulation structure. The water replenishment process is standardized, which can reduce human error.

[0061] (3) Water circulation system pressurization: After the entire water system is filled with water, close ball valve G8, open ball valve F26, and turn on water pressurization device 25 to pressurize the entire water system. The pressurization operation is controllable and can accurately reach the set pressure value.

[0062] (4) Pressure stabilization and testing for leaks in the water circuit of the equipment: After pressurizing to the set value, close the ball valve F26 and stabilize the pressure for a certain period of time; if the pressure drops during the stabilization period, it indicates that there is a leak in the water circuit of the equipment under test. The pipe fittings on the water circuit need to be inspected to eliminate the leak and ensure that the water circuit is effectively sealed. This step can accurately test the water circuit sealing performance and ensure the quality of the product leaving the factory.

[0063] (5) Flow rate and head measurement: After the equipment under test has been stabilized and confirmed to be leak-free, the flow rate and head of its water pump can be tested. Close the ball valve F26 connected to the water booster device 25, turn on the circulating water pump 18, and adjust the pressure by adjusting the opening of the ball valve E29 to achieve water flow rate test under different heads. This is to check whether the water pump meets the design and actual use requirements. The test dimensions are comprehensive and can accurately verify the hydraulic performance of the water pump.

[0064] Example 2:

[0065] This embodiment targets the device under test B12 or hydraulic module B15 without a circulation pump, and uses the multi-functional booster and flow meter from Embodiment 1 for testing. The testing steps are as follows:

[0066] (1) Connect the water circulation system: Connect the device under test B12 or hydraulic module B15 to the inlet pipe 9, and then connect the return pipe A11 to form a water circulation structure C35 or water circulation structure D36, which is suitable for the testing needs of pumpless equipment and has strong compatibility.

[0067] (2) Water replenishment for the water circulation system: close ball valves F26 and C27, open ball valves D22, A30, B32 and E29, and then open ball valve G8 to replenish water to the water pipelines of water circulation structure C35 and water circulation structure D36. The water replenishment operation is designed in combination with the structural characteristics of pumpless equipment, and the logic is reasonable.

[0068] The subsequent processes, such as pressurization, pressure stabilization and leak detection, and flow rate and head measurement, are completely consistent with those in Example 1 when the device under test is device A10 with its own circulating pump or hydraulic module A14. This example achieves full-process testing of pumpless equipment through simple valve switching, eliminating the need to replace dedicated testing equipment, reducing equipment investment costs, maintaining the continuity of the testing process, improving testing efficiency, and ensuring that the testing standards are consistent with those for equipment with pumps, facilitating unified quality control within the enterprise.

[0069] Same as Example 1.

[0070] Example 3:

[0071] In addition, by building the water circulation structure E37, the combined online testing of the air conditioning unit water circulation device 16 and the hydraulic module can be realized. The working time of the air conditioning unit required to heat (or cool) a certain amount of water tank from a specified initial temperature to the target temperature can be determined, which further enriches the testing function and covers the full-process testing needs of the air conditioning water system from single equipment to combined online testing.

[0072] This embodiment focuses on the combined online testing of the air conditioning unit's water circulation device 16 and the hydraulic module B15. The multi-functional pressure boosting and stabilizing device and flow testing device from Embodiment 1 are used for testing, as shown in Figure 5. The specific steps are as follows:

[0073] (1) Connecting the water circulation system: Connect the combination of the air conditioning unit water circulation device 16 and the hydraulic module B15 to the inlet pipe 9, and then connect the return pipe B13 to form the water circulation structure E37, which can meet the testing requirements of the core equipment combination of the air conditioning water system and fill the gap of traditional single equipment testing.

[0074] (2) Water replenishment of the water circulation system: close ball valves F26 and C27, open ball valves D22, A30, B32 and E29, and then open ball valve G8 to replenish the water pipeline of water circulation structure E37. This is suitable for the water replenishment needs of combined online structure and is easy to operate.

[0075] The subsequent pressurization, pressure stabilization, leak detection, and performance testing processes are completely consistent with those in Example 1 when the device under test is device A10 with a built-in circulation pump or hydraulic module A14. This example achieves integrated testing of the air conditioning unit and the hydraulic module, which can accurately measure the air conditioning unit's heating / cooling efficiency and operating time, providing accurate data support for product performance optimization. Furthermore, the combined online testing eliminates the need for separate test setups, reducing manual operation steps and labor intensity. The collaborative work of each device during the testing process more closely resembles actual usage scenarios, making the test results more valuable.

[0076] When the device under test is a combination of the main unit water circulation device and hydraulic module B, it can heat water from an initial temperature of 25°C to 45°C for domestic use or from an initial temperature of 35°C to 7°C for air conditioning, and measure the required working time of the air conditioning unit. Of course, users can use initial water of different temperatures and use the air conditioning unit to achieve different time periods of temperature requirements.

[0077] Same as Example 1.

[0078] The embodiments described above are merely preferred embodiments of the present invention. Through integrated design, rapid switching between multiple structures, and precise detection with dual filters, this device achieves the technical effects of simplified detection process, improved detection efficiency, reduced detection cost, and accurate detection results. Ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included within the protection scope of the present invention.

Claims

1. A multifunctional pressure boosting and stabilizing device for testing flow rate, comprising a water supply tank, a water supply pipe, and a water circulation system, wherein the water supply tank includes a tap water inlet pipe and a drain / sewage valve pipe; the tap water inlet pipe is located on one side of the upper part of the water supply tank, and a tap water inlet valve is installed on the tap water inlet pipe; the drain / sewage valve pipe is located on one side of the bottom of the water supply tank, and a drain / sewage valve is installed on the drain / sewage valve pipe; the water supply pipe is located below the water supply tank, and its upper end is connected to the middle of the bottom of the water supply tank; the water circulation system is located below the water supply tank, and a ball valve G is installed on the water supply pipe, characterized in that: The water circulation system includes an inlet pipe, a device under test (DUT) A, a return pipe A, a device under test (DUT) B, a return pipe B, a hydraulic module A, a hydraulic module B, an air conditioning unit water circulation device, and connecting pipes. The left end of the inlet pipe is connected to the left end of the return pipe A and then connected to the lower end of the makeup water pipe. A circulating water pump is installed inside the device under test A and the hydraulic module A, but no circulating water pump is installed inside the device under test B and the hydraulic module B. An inlet and an outlet are provided on one side of the lower part of the air conditioning unit water circulation device. The air conditioning unit water circulation device is an air source heat pump or a chiller unit. An automatic pressure relief valve, a ball valve D, and a Y-type filter A are installed on the water inlet pipe from left to right; a pressure boosting pipe is installed below the automatic pressure relief valve, and a water boosting device is installed below the pressure boosting pipe. The upper end of the pressure boosting pipe is connected to the automatic pressure relief valve, and the lower end of the pressure boosting pipe is connected to the water boosting device. A ball valve F is installed on the pressure boosting pipe. The return water pipe A is equipped with a ball valve C, a flow meter, and a ball valve E from right to left; the return water pipe B is equipped with a ball valve A, a Y-type filter B, a circulating water pump, and a ball valve B from right to left; the upper left end of the return water pipe B is connected to the ball valve C and the flow meter of the return water pipe A.

2. The multifunctional pressure boosting and stabilizing device for testing flow rate according to claim 1, characterized in that: The right end of the inlet pipe is connected to the upper side of the device under test A, and the lower side of the device under test A is connected to the right end of the return pipe A, so that the inlet pipe, the device under test A and the return pipe A form a water circulation structure A; when the water replenishment tank and the water circulation structure A are connected through the water replenishment pipe, ball valves F and B are closed, and ball valves G, D, C and E are opened at the same time, and the water circulation structure A is in the water replenishment state; when the water circulation structure A is full of water, ball valve G is closed, ball valve F is opened, and the water pressurization device is turned on, and the water circulation structure A is in the pressurization state.

3. A multifunctional pressure boosting and stabilizing device for testing flow rate according to any one of claims 1 or 2, characterized in that: In the water circulation structure A, the device under test A can be a hydraulic module A. The device under test A is installed on the right side of the hydraulic module A, and a circulating water pump is installed on the lower left side of the hydraulic module A. The right end of the inlet pipe is connected to the upper left side of the hydraulic module A, and the right end of the return pipe A is connected to the lower left side of the hydraulic module A, so that the inlet pipe, the hydraulic module A, and the return pipe A form a water circulation structure B. The water replenishment state and pressurization state of the water circulation structure B are the same as those of the water circulation structure A.

4. The multifunctional pressure boosting and stabilizing device for testing flow rate according to claim 1, characterized in that: The right end of the inlet pipe is connected to the upper side of the device under test A, and the lower side of the device under test B is connected to the right end of the return pipe B, so that the inlet pipe, the device under test B and the return pipe B form a water circulation structure C; when ball valves F and C are closed, and ball valves D, A, B, E and G are opened at the same time, the water circulation structure C is in a water replenishment state; when the water circulation structure C is full of water, ball valve G is closed, ball valve F is opened, and the water pressurization device is turned on, and the water circulation structure C is in a pressurization state.

5. A multifunctional pressure boosting and stabilizing device for testing flow rate according to any one of claims 1 or 4, characterized in that: In the water circulation structure C, the device under test B can be a hydraulic module B, and the device under test B is arranged on the right side of the hydraulic module B; the right end of the inlet pipe is connected to the upper left side of the hydraulic module B, and the right end of the return pipe B is connected to the lower left side of the hydraulic module B, so that the inlet pipe, the hydraulic module B and the return pipe B form a water circulation structure D; the water replenishment state and the pressurization state of the water circulation structure D are the same as those of the water circulation structure C.

6. The multifunctional pressure boosting and stabilizing device for testing flow rate according to claim 1, characterized in that: The right end of the inlet pipe is connected to the inlet of the air conditioner unit's water circulation device, and the outlet of the air conditioner unit's water circulation device is connected to the upper side of the hydraulic module B through a connecting pipe. The lower side of the hydraulic module B is connected to the right end of the return water pipe B, so that the inlet pipe, the air conditioner unit's water circulation device, the hydraulic module B, and the return water pipe B form a water circulation structure E; the water replenishment state and pressurization state of the water circulation structure E are the same as those of the water circulation structure C.

7. A method for implementing a multifunctional pressure boosting and stabilizing device for testing flow rate, characterized in that: When using a multifunctional pressure boosting and stabilizing device for testing flow rate as described in any one of claims 1-6, and the device under test is device A with a built-in circulating pump or hydraulic module A, the following steps are included: (1) Connect the water circulation system: Connect the device under test A or hydraulic module A to the inlet pipe, and then connect the return pipe A to form water circulation structure A or water circulation structure B; (2) Water replenishment for the water circulation system: Close ball valves F and B, then open ball valves D, C, and E, and then open ball valve G to replenish water to pipeline A of the water circulation structure; (3) Water circulation system pressurization: After the entire water system is filled with water, close ball valve G, open ball valve F, and turn on the water pressurization device to pressurize the entire water system; (4) Pressure stabilization and testing for leaks in the water circuit of the equipment: pressurize to the set value, close the ball valve F, and stabilize the pressure for a certain period of time; if the pressure drops within the stabilization time, it indicates that there is a leak in the water circuit of the equipment under test. The pipe fittings on the water circuit of the equipment under test need to be checked to eliminate the leak and ensure that the water circuit is effectively sealed. (5) Flow rate and head measurement: After the equipment under test has been pressure stabilized and confirmed to have no leakage, the water pump of the equipment under test can be tested for flow rate and head; close the ball valve F connected to the water booster device, and then turn on the circulating water pump; adjust the opening of the ball valve E to adjust different pressures and achieve different head water flow rates to test whether the water pump meets the design and actual needs.

8. The implementation method of the multifunctional boosting and stabilizing pressure and flow testing device according to claim 7, characterized in that: When the device under test is device B without a circulation pump or hydraulic module B, the following steps are included: (1) Connect the water circulation system: Connect the device under test B or the hydraulic module B to the inlet pipe, and then connect the return pipe A to form a water circulation structure C or a water circulation structure D. (2) Water replenishment for the water circulation system: close ball valves F and C, open ball valves D, A, B and E, and then open ball valve G to replenish water to the water pipes of water circulation structure C and water circulation structure D; The remaining process is the same as when the device under test is device A with its own circulating pump or hydraulic module A.

9. The method for implementing a multifunctional booster and stabilizer, and flow testing device according to claim 7, characterized in that: When testing a combination of the main unit's water circulation device and hydraulic module B, the following steps are included: (1) Connect the water circulation system: Connect the air conditioning unit water circulation device + hydraulic module B to the inlet pipe, and then connect the return pipe B to form the water circulation structure E; (2) Water replenishment for the water circulation system: Close ball valves F and C, open ball valves D, A, B and E, and then open ball valve G to replenish the water pipes of the water circulation structure E; The remaining process is the same as when the device under test is device A with its own circulating pump or hydraulic module A.

10. The method for implementing a multifunctional booster and stabilizer, and flow rate testing device according to claim 9, characterized in that: When the device under test is a combination of the main unit water circulation device and hydraulic module B, it can realize the determination of the working time required for the air conditioning unit to heat domestic water from an initial temperature of 25°C to 45°C or air conditioning water from an initial temperature of 35°C to 7°C in a water tank of a certain capacity.

Images