Water purifier pump testing equipment

Abstract

A water purifier pump testing device comprises a shell, a water tank and a testing frame, the water tank and the testing frame are arranged in the shell, and the water purifier pump testing device is characterized in that a first pipeline is further arranged in the shell and provided with a voltage sensor, a first flow sensor and a first pressure sensor; the second pipeline is provided with a second pressure sensor, a second flow sensor, a current sensor and a pressure regulating valve; the third pipeline is provided with a water pressure gauge; and the test platform is used for testing the self-suction height of the water purifier pump to be tested, and the water inlet end of the test platform is connected with a self-suction port arranged at the low liquid level of the water tank. Compared with the prior art, the water purifier pump test device has the advantages that the integrated test of the performance test, the service life test, the temperature rise test, the lift height test and the self-suction height test of the water purifier pump to be tested is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifier experiments, in particular to a water purifier pump testing device. Background Art

[0002] As water pollution becomes more and more serious, many families will choose to use water purifiers, water purifiers, etc. to treat and purify domestic water, and its quality is directly related to the health and safety of the general public. Self-priming pumps, booster pumps and other DC pumps are the core components of water purifiers, which are used to provide filtration pressure to the RO membrane and NF filter element of the water purifier. Therefore, the performance and reliability life test of the pump is very important. The test data of the pump can provide decision-making for the development and selection of water purifiers.

[0003] The pump testing devices in the prior art are mostly single-item tests. The Chinese utility model with patent number CN202120945107.9 (authorization announcement number CN214471727U) discloses "A RO pump life test device", which controls the full-open flow and half-open flow and other data of the RO pump through a regulating valve, and observes and records current, pressure, flow and other data to achieve long-term pump life test requirements; the Chinese utility model with patent number CN201721290207.2 (authorization announcement number CN207583609U) discloses "A test structure device for detecting the heads of various booster pumps of pure water machines", which can imitate the actual life test booster pump head to detect whether the quality of the booster pump in the pure water machine in production meets the standards.

[0004] The above test equipment has the following problems: 1. One device can only test one item, and cannot perform integrated testing on the water purifier pump's water flow, water pressure, stall pressure, working current, self-priming height, head height, temperature rise, high and low pressure start-up, on-off life and other items that need to be tested; 2. The life test cycle of the water purifier pump is long and consumes a lot of power. The existing equipment lacks energy-saving power supply equipment. In summary, the existing water purifier pump test equipment needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a testing device which can integrate the testing of water purifier pumps and is provided with an energy-saving power supply device in view of the above-mentioned technical status quo.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: the water purifier pump test equipment comprises a shell, a water tank and a test stand arranged in the shell, characterized in that: the water tank has a first water outlet, a first water inlet, a second water inlet and a self-priming port, the test stand has a third water inlet, a fourth water inlet, a second water outlet and a third water outlet, an adapter is arranged in the test stand to convert alternating current into direct current to power the water purifier pump to be tested, and the shell is also provided with

[0007] The first pipeline is provided with a voltage sensor, a first flow sensor and a first pressure sensor, the water inlet end is connected to the first water outlet, the water inlet end is provided with a first variable frequency pump, the water outlet end is divided into a first shunt pipeline and a second shunt pipeline, the first shunt pipeline is connected to the third water inlet, and the second shunt pipeline is connected to the fourth water inlet;

[0008] The second pipeline is provided with a second pressure sensor, a second flow sensor, a current sensor and a pressure regulating valve, the water inlet end is connected to the second water outlet, the water outlet end is connected to the first water inlet, and the water outlet end is provided with a second variable frequency pump;

[0009] The third pipeline is provided with a water pressure gauge, the water inlet end is connected to the third water outlet, and the water outlet end is connected to the second water inlet;

[0010] A test platform, used to test the self-priming height of the water purifier pump to be tested, the water inlet end being connected to the self-priming port located at the low liquid level of the water tank;

[0011] A DC power supply is used to power the aforementioned voltage sensor, first flow sensor, first pressure sensor, second pressure sensor, second flow sensor, current sensor, pressure regulating valve, water pressure gauge and test platform, and the DC power supply is connected to a solar panel for converting solar energy into electrical energy and an inverter for converting DC power into AC power to power the aforementioned first variable frequency pump and second variable frequency pump.

[0012] The main control board is electrically connected to the aforementioned voltage sensor, the first flow sensor, the first pressure sensor, the first variable frequency pump, the second pressure sensor, the second flow sensor, the current sensor, the pressure regulating valve, the second variable frequency pump, the water pressure gauge and the test platform.

[0013] In order to be able to test multiple water purifier pumps to be tested at the same time, preferably, the test stand is provided with multiple first fixing seats for fixing the water purifier pumps to be tested, the water inlet end of the first fixing seat is connected in series to the third water inlet or the fourth water inlet, and the water outlet end is connected in series to the second water outlet or the third water outlet. When the performance test of the water purifier pump to be tested is carried out, the water inlet end of the first fixed seat is connected in series to the third water inlet, and the water outlet end is connected in series to the second water outlet. At this time, the first variable frequency pump provides water inlet pressure and water inlet flow, and the second variable frequency pump provides water outlet pressure, locked-rotor water pressure and water outlet flow. The adapter provides rated voltage, low voltage and high voltage to test the working voltage, working current, water inlet pressure, water outlet pressure, locked-rotor pressure, high and low pressure starting, water inlet flow and water outlet flow of the water purifier pump to be tested; when the head height test of the water purifier pump to be tested is carried out, the water inlet end of the first fixed seat is connected in series to the fourth water inlet, and the water outlet end is connected in series to the third water outlet. The first variable frequency pump provides water inlet pressure, and the head height is calculated according to the pressure of the water pressure gauge according to the formula p=ρgh.

[0014] In order to perform a self-priming height test on the water purifier pump to be tested, preferably, the test platform includes a fixed frame, a cylinder and a second fixed seat for fixing the water purifier pump to be tested, the fixed frame is fixed in the shell, the cylinder is arranged at the other end of the fixed frame, the second fixed seat is arranged on the output shaft of the cylinder and can move up and down with the cylinder, and the second fixed seat is provided with a guardrail.

[0015] In order to perform a temperature rise test on the water purifier pump to be tested, preferably, a thermocouple is further provided in the shell, the thermocouple is connected to a temperature sensor, and the thermocouple and the temperature sensor are electrically connected to the main control board.

[0016] In order to simulate the actual use scenario of the water purifier pump, preferably, the water tank also has a fifth water inlet and overflow port for adding test water to the water tank, and the water inlet end of the fifth water inlet is provided with a filter assembly and a water pump for filtering the test water. The tap water is purified into clean water by the filter assembly, and the water use scenario of the water purifier pump after being filtered by the filter element inside the water purifier is truly simulated, and the purified water flows into the water tank through the fifth water inlet through the water pump.

[0017] Preferably, the filter assembly comprises a first-stage filter element and a second-stage filter element, the first-stage filter element is a pp cotton filter element, and the second-stage filter element is an activated carbon filter element.

[0018] In order to display the test data intuitively, preferably, the main control board is connected to a display panel for displaying data.

[0019] In order to realize fault alarm, preferably, an alarm is provided on the housing, and the alarm is electrically connected to the main control board. When the alarm sounds, it indicates that a fault occurs when testing the pump of the water purifier to be tested, and the machine needs to be stopped for inspection.

[0020] In order to fix the solar panel on the housing, preferably, a bracket is provided outside the housing, and the solar panel is arranged on the bracket.

[0021] Compared with the prior art, the advantages of the utility model are:

[0022] 1. By arranging a voltage sensor, a first flow sensor, a first pressure sensor, a second pressure sensor, a second flow sensor and a current sensor in the first pipeline and the second pipeline, the performance and life test of the water purifier pump to be tested is realized, and a temperature rise test is realized by contacting thermocouples at the pump head, pump body and pump tail of the water purifier pump to be tested. By arranging a water pressure gauge in the third pipeline, the head height test of the water purifier pump to be tested is realized. By arranging a cylinder on the test platform, the self-priming height test of the water purifier pump to be tested is realized, thereby realizing an integrated test of the water purifier pump to be tested.

[0023] 2. Connect a solar panel to the outside of the DC motor to power the entire machine, reduce energy consumption during the test cycle, and achieve energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the solar panel in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] like Figure 1As shown, the water purifier pump test equipment of this embodiment includes a shell 1 and a water tank 2 and a test stand 3 arranged in the shell 1, wherein the water tank 2 has a first water outlet 21, a first water inlet 22, a second water inlet 23 and a self-priming port 24, the test stand 3 has a third water inlet 31, a fourth water inlet 32, a second water outlet 33 and a third water outlet 34, the water tank 2 also has a fifth water inlet 25 and an overflow port 26 for adding test water to the water tank 2, and the water inlet end of the fifth water inlet 25 is provided with a filter component 251 and a water pump 252 for filtering the test water. In this embodiment, the filter component 251 includes a first-stage pp cotton filter element and a second-stage activated carbon filter element. The tap water is purified into clean water through the first-stage pp cotton filter element and the second-stage activated carbon filter element, which truly simulates the water use scene of the water purifier pump after being filtered by the filter element inside the water purifier, and the purified water flows into the water tank 2 from the fifth water inlet 25 through the water pump 252 to simulate the real usage scene. The test stand 3 is provided with a plurality of first fixing seats for fixing the water purifier pumps to be tested so as to test a plurality of water purifier pumps to be tested simultaneously. The water inlet end of the first fixing seat is connected in series to the third water inlet 31 or the fourth water inlet 32, and the water outlet end is connected in series to the second water outlet 33 or the third water outlet 34. The test stand 3 is also provided with an adapter to convert alternating current into direct current to power the water purifier pumps to be tested.

[0028] The housing 1 is provided with a first pipeline 41, a second pipeline 42 and a third pipeline 43. The water inlet end of the first pipeline 41 is connected to the first water outlet 21, and the water outlet end is divided into a first diversion pipeline 415 and a second diversion pipeline 416. The first diversion pipeline 415 is connected to the third water inlet 31, and the second diversion pipeline 416 is connected to the fourth water inlet 32. The first pipeline 41 is provided with a voltage sensor 411, a first flow sensor 412 and a first pressure sensor 413, and a first variable frequency pump 414 is provided at the water inlet end. The water inlet end of the second pipeline 42 is connected to the second water outlet 33, and the water outlet end is connected to the first water inlet 22. The second pipeline 42 is provided with a second pressure sensor 421, a second flow sensor 422, a current sensor 423 and a pressure regulating valve 424, and a second variable frequency pump 425 is provided at the water outlet end. The water inlet end of the third pipeline 43 is connected to the third water outlet 34, and the water outlet end is connected to the second water inlet 23. The third pipeline 43 is provided with a water pressure gauge 431. When the performance test is performed on the water purifier pump to be tested, the water inlet end of the first fixing seat is connected in series to the third water inlet 31, and the water outlet end is connected in series to the second water outlet 33. At this time, the first variable frequency pump 414 provides the water inlet pressure and water inlet flow, the second variable frequency pump 425 provides the water outlet pressure, the locked rotor water pressure and the water outlet flow, and the adapter provides the rated voltage, low voltage and high voltage to test the working voltage, working current, water inlet pressure, water outlet pressure, locked rotor pressure, high and low pressure start-up, water inlet flow, and water outlet flow of the water purifier pump to be tested. When the lift height test is performed on the water purifier pump to be tested, the water inlet end of the first fixed seat is connected in series to the fourth water inlet 32, and the water outlet end is connected in series to the third water outlet 34. The first variable frequency pump 414 provides the water inlet pressure, and the lift height is calculated according to the pressure of the water pressure gauge 431 according to the formula p=ρgh.

[0029] In order to realize the self-priming height test of the water purifier pump to be tested, a test platform 5 is provided in the housing 1, and the water inlet end of the test platform 5 is connected to the self-priming port 24 provided at the low liquid level of the water tank 2. The test platform 5 includes a fixing frame 51, a cylinder 52 and a second fixing seat 53 for fixing the water purifier pump to be tested. The fixing frame 51 is fixed in the housing 1, and the cylinder 52 is provided at the other end of the fixing frame 51. The second fixing seat 53 is provided on the output shaft of the cylinder 52 and can move up and down with the cylinder 52. The second fixing seat 53 is provided with a guardrail 54 to prevent the water purifier pump to be tested from falling during the test. When the self-priming height test of the water purifier pump to be tested is performed, the water inlet end of the second fixing seat 53 is connected to the self-priming port 24 of the water tank 2, and the cylinder 52 is slowly raised by compressed air to keep the water inlet end of the second fixing seat 53 ≥2.0m above the horizontal plane of the container, and the power is turned on. When water flows out of the water outlet end of the second fixing seat 53, it indicates that the self-priming height is ≥2m, and the self-priming height function meets the requirements.

[0030] In order to implement the temperature rise test of the water purifier pump to be tested, a thermocouple 81 is provided in the housing 1, and the thermocouple 81 is connected to a temperature sensor 82. The thermocouple 81 and the temperature sensor 82 are electrically connected to the main control board 7. When the temperature rise test is performed on the water purifier pump to be tested, the top end of the thermocouple 81 is brought into contact with the pump head, pump body and pump tail of the water purifier pump to be tested fixed to the first fixing seat, and a temperature rise curve is drawn.

[0031] In addition, a DC power supply 6 and a main control board 7 are also provided in the housing 1. The DC power supply 6 is used to supply power to the aforementioned voltage sensor 411, the first flow sensor 412, the first pressure sensor 413, the second pressure sensor 421, the second flow sensor 422, the current sensor 423, the pressure regulating valve 424, the water pressure gauge 431 and the test platform 5. The DC power supply 6 is connected to a solar panel 61 for converting solar energy into electrical energy and an inverter for converting DC power into AC power to supply power to the aforementioned first variable frequency pump 414 and the second variable frequency pump 425. The structure of the solar panel 61 is as follows: Figure 2 As shown, the solar panel 61 is arranged outside the housing 1, and a bracket 62 is arranged outside the housing 1, and the solar panel 61 is arranged on the bracket 62. The main control board 7 is electrically connected to the voltage sensor 411, the first flow sensor 412, the first pressure sensor 413, the first variable frequency pump 414, the second pressure sensor 421, the second flow sensor 422, the current sensor 423, the pressure regulating valve 424, the second variable frequency pump 425, the water pressure gauge 431, the test platform 5, the thermocouple 81 and the temperature sensor 82, and the touch panel is also connected to the display panel 71 for displaying data. An alarm 72 is arranged outside the housing 1, and the alarm 72 is electrically connected to the main control board 7.

[0032] In summary, the water purifier pump test equipment can test the following five items of the water purifier pump:

[0033] 1. Performance test of water purifier pump:

[0034] The water purifier pump to be tested is fixed to the first fixing seat, the water inlet end of the first fixing seat is connected in series to the third water inlet 31, and the water outlet end is connected in series to the second water outlet 33. The first variable frequency pump 414 provides water inlet pressure and water inlet flow, the second variable frequency pump 425 provides water outlet pressure, locked-rotor water pressure and water outlet flow, and the adapter provides rated voltage, low voltage and high voltage to perform working voltage, working current, water inlet pressure, water outlet pressure, locked-rotor pressure, high and low pressure starting, water inlet flow and water outlet flow tests on the water purifier pump to be tested, and display them on the display panel 71. Among them, in this embodiment, the flow sensor range is 0.01L / min~30.00L / min, and the sensor accuracy is 0.02; the pressure sensor range is 0.01MPa~2.0MPa, and the sensor accuracy is 0.02; the voltage sensor 411 range is 0.01VDC~50VDC, and the sensor accuracy is 0.02; the current sensor 423 range is 0.01mA~30.00A, and the sensor accuracy is 0.02; the high-precision pressure regulating valve 424 range is 0.001MPa~1.50MPa, and the pressure regulating valve 424 accuracy is 0.001MPa; the voltage value range of the adapter is 1VDC~50VDC, and the accuracy is 0.02.

[0035] 2. Self-priming height test of water purifier pump:

[0036] Fix the water purifier pump to be tested to the second fixing seat 53, the water inlet end of the second fixing seat 53 is connected to the self-priming port 24 of the water tank 2, and the cylinder 52 is slowly raised by means of compressed air to provide power, and the height difference between the water inlet end of the second fixing seat 53 and the self-priming port 24 is maintained at ≥2.0m. Turn on the power, and when water flows out of the water outlet end of the second fixing seat 53, it indicates that the self-priming height is ≥2m, and the self-priming height function meets the requirements.

[0037] 3. Water purifier pump head height test:

[0038] The water purifier pump to be tested is fixed to the first fixing seat, the water inlet end of the first fixing seat is connected in series to the fourth water inlet 32, and the water outlet end is connected in series to the third water outlet 34. The first variable frequency pump 414 provides water inlet pressure, and the head height is calculated according to the pressure of the water pressure gauge 431 according to the formula p=ρgh. When the value of the water pressure gauge 431 is ≥0.02MPa, it indicates that the head of the test pump is 2m. When the value of the water pressure gauge 431 is <0.02MPa, it indicates that the head of the pump is less than 2m.

[0039] 4. Temperature rise test of water purifier pump:

[0040] The water purifier pump to be tested is fixed to the first fixing seat, and the top end of the thermocouple 81 is fixed in contact with the pump head, pump body and pump tail of the water purifier pump to be tested, and a temperature rise curve is drawn and displayed on the display panel 71.

[0041] 5. Life test of water purifier pump:

[0042] The water purifier pump to be tested is fixed to the first fixing seat, the water inlet end of the first fixing seat is connected in series to the third water inlet 31, and the water outlet end is connected in series to the second water outlet 33. The power-on time, power-off time and number of on-off times are set to test the on-off life of the water purifier pump to be tested, and the power-on time and running times are set to test the continuous life of the water purifier pump to be tested. During the test, the display board 71 displays the working voltage, working current, water inlet pressure, water outlet pressure, locked-rotor pressure, high and low pressure starting, water inlet flow rate, and water outlet flow rate of the water purifier pump to be tested. When the working current exceeds the limit, water leakage, power failure and other phenomena occur, the alarm 72 sounds an alarm.

Claims

1. A water purifier pump testing device, comprising a housing (1), a water tank (2) and a testing stand (3) arranged in the housing (1), characterized in that: The water tank (2) has a first water outlet (21), a first water inlet (22), a second water inlet (23) and a self-priming port (24); the test stand (3) has a third water inlet (31), a fourth water inlet (32), a second water outlet (33) and a third water outlet (34); an adapter is provided in the test stand (3) to convert alternating current into direct current to supply power to the pump of the water purifier to be tested; and the housing (1) is also provided with a A first pipeline (41) is provided with a voltage sensor (411), a first flow sensor (412) and a first pressure sensor (413); a water inlet end is connected to a first water outlet (21); a first variable frequency pump (414) is provided at the water inlet end; a water outlet end is divided into a first diversion pipeline (415) and a second diversion pipeline (416); the first diversion pipeline (415) is connected to a third water inlet (31); and the second diversion pipeline (416) is connected to a fourth water inlet (32); The second pipeline (42) is provided with a second pressure sensor (421), a second flow sensor (422), a current sensor (423) and a pressure regulating valve (424), the water inlet end is connected to the second water outlet (33), the water outlet end is connected to the first water inlet (22), and the water outlet end is provided with a second variable frequency pump (425); The third pipeline (43) is provided with a water pressure gauge (431), the water inlet end is connected to the third water outlet (34), and the water outlet end is connected to the second water inlet (23); A test platform (5) is used to test the self-priming height of the water purifier pump to be tested, and the water inlet end is connected to a self-priming port (24) provided at a low liquid level of the water tank (2); A direct current power supply (6) for supplying power to the aforementioned voltage sensor (411), the first flow sensor (412), the first pressure sensor (413), the second pressure sensor (421), the second flow sensor (422), the current sensor (423), the pressure regulating valve (424), the water pressure gauge (431) and the test platform (5); the direct current power supply (6) is connected to a solar panel (61) for converting solar energy into electrical energy and an inverter for converting direct current into alternating current to supply power to the aforementioned first variable frequency pump (414) and the second variable frequency pump (425); The main control board (7) is electrically connected to the aforementioned voltage sensor (411), the first flow sensor (412), the first pressure sensor (413), the first variable frequency pump (414), the second pressure sensor (421), the second flow sensor (422), the current sensor (423), the pressure regulating valve (424), the second variable frequency pump (425), the water pressure gauge (431) and the test platform (5).

2. The water purifier pump testing device according to claim 1, characterized in that: The test stand (3) is provided with a plurality of first fixing seats for fixing the pump of the water purifier to be tested, wherein the water inlet end of the first fixing seat is connected in series to the third water inlet (31) or the fourth water inlet (32), and the water outlet end is connected in series to the second water outlet (33) or the third water outlet (34).

3. The water purifier pump testing device according to claim 1, characterized in that: The test platform (5) comprises a fixing frame (51), a cylinder (52) and a second fixing seat (53) for fixing a water purifier pump to be tested, wherein the fixing frame (51) is fixed in a housing (1), the cylinder (52) is arranged at the other end of the fixing frame (51), the second fixing seat (53) is arranged on an output shaft of the cylinder (52) and can move up and down with the cylinder (52), and the second fixing seat (53) is provided with a guardrail (54).

4. The water purifier pump testing device according to claim 1, characterized in that: A thermocouple (81) is also provided in the housing (1), the thermocouple (81) is connected to a temperature sensor (82), and the thermocouple (81) and the temperature sensor (82) are electrically connected to a main control board (7).

5. The water purifier pump testing device according to any one of claims 1 to 4, characterized in that: The water tank (2) also has a fifth water inlet (25) and an overflow port (26) for adding test water to the water tank (2), and a filter assembly (251) and a water pump (252) for filtering the test water are provided at the water inlet end of the fifth water inlet (25).

6. The water purifier pump testing device according to claim 5, characterized in that: The filter assembly (251) comprises a first-stage filter element (2511) and a second-stage filter element (2512), wherein the first-stage filter element (2511) is a PP cotton filter element, and the second-stage filter element (2512) is an activated carbon filter element.

7. The water purifier pump testing device according to any one of claims 1 to 4, characterized in that: The main control board (7) is connected to a display board (71) for displaying data.

8. The water purifier pump testing device according to any one of claims 1 to 4, characterized in that: The housing (1) is provided with an alarm (72), and the alarm (72) is electrically connected to the main control board (7).

9. The water purifier pump testing device according to any one of claims 1 to 4, characterized in that: A bracket (62) is provided outside the shell (1), and the solar panel (61) is arranged on the bracket (62).

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