A washing machine energy and water efficiency testing system device

By optimizing and combining the test water preparation system, constant temperature system, and pipeline system, automated control is achieved, solving the problems of large footprint, high cost, and low efficiency of existing washing machine energy efficiency and water efficiency testing equipment. This improves testing efficiency and ease of operation, and ensures the reliability of test results.

CN117309452BActive Publication Date: 2026-01-16CHINA NAT INSPECTION & TESTING HLDG GRP SHAANXI CO LTD
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Patent Information

Application Number
CN202311552790.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-21
Publication Date
2026-01-16
Estimated Expiration
2043-11-21

AI Technical Summary

Technical Problem

Existing washing machine energy efficiency and water efficiency testing equipment are conducted separately, which takes up a large area, is costly, and inefficient. Furthermore, the system has not been optimized, resulting in a cumbersome structure and inconvenient operation.

Method used

Design a washing machine energy efficiency and water efficiency testing system device, which rationally combines the test water preparation system, constant temperature system, pipeline system and test station to achieve automated operation and system optimization. The consistency and reliability of test results are ensured through PLC control and sensor signal feedback.

Benefits of technology

It reduces testing costs, improves testing efficiency and ease of operation, ensures the reliability and consistency of test results, and avoids the impact of on-site operational errors.

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Abstract

A kind of washing machine energy efficiency water efficiency test system device, to solve the problem that existing equipment cannot be systematized automation, operation is complex, small scope of application, the present application is by test water preparation system, constant temperature system, pipeline system, standard station and test station, first tap water is accessed test water preparation system and prepares the test water satisfying standard requirement, then test water is heated or refrigerated by constant temperature system, to meet the water temperature requirement of standard for test water;Afterwards, through pipeline system to reach standard station and test station, sample and standard machine are placed on test station and standard station respectively according to standard requirement and carry out energy efficiency water efficiency test.The main body structure of a kind of new washing machine energy efficiency water efficiency test system, constant temperature system, control system and test system are reasonably and effectively connected, the systematization and automation control of washing machine energy efficiency water efficiency test are realized, it is convenient and simple to operate, and the scope of application is wide.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the washing machine test equipment, specifically relates to a kind of washing machine energy efficiency water efficiency test system device. BACKGROUND

[0002] A kind of washing machine energy efficiency water efficiency test system device according to GB 12021.4-2013 《Electric washing machine energy efficiency water efficiency limit value and grade》4.1 energy efficiency grade and water efficiency grade detection related regulations is designed and developed, meets test requirement.The most washing machine detection equipment existing in current market is detected separately for energy efficiency and water efficiency, without a combination of system, is tested by 2 equipment, occupies large area, cost is high, and efficiency is low;Small part of energy efficiency water efficiency test is combined together to form single equipment for detection, only just mechanically combine 2 equipment together, and device structure and system are not optimized, and it will produce structure miscellaneous, system complex, cost is high, and the defects such as inconvenient operation are produced.The present application is re-designed and developed according to standard requirement, and test water preparation system, constant temperature system, pipeline system and test station are perfectly combined together, under the premise of guaranteeing test detection requirement, structure and system are optimized, so that detection cost is reduced, detection efficiency is improved, and operation convenience is also greatly improved. SUMMARY

[0003] The purpose of the present application is to provide a kind of washing machine energy efficiency water efficiency test system device, and the present test system can realize automation operation, computer control, test has consistency and repeatability.Because test is automatically controlled, the consistency of the result of each test and the content executed can be guaranteed, test is controlled by PLC and sensor signal feedback, to ensure the reliability of test result, simple and safe, can avoid the influence of detection result caused by on-site operation error.

[0004] The technical scheme of the present application is: a kind of washing machine energy efficiency water efficiency test system device, including test water preparation system, constant temperature system, pipeline system, test station, the test water preparation system is connected constant temperature system, constant temperature system is connected pipeline system, and pipeline system is connected test station;

[0005] The test water preparation system includes water inlet electromagnetic valve a, liquid level sensor a, raw water tank, pure water instrument, pure water tank, liquid level sensor b;The water inlet electromagnetic valve a is connected with raw water tank, the raw water tank is connected with pure water instrument by valve and three-way, the pure water instrument is connected with pure water tank, the raw water tank is equipped with liquid level sensor a, and the pure water tank is equipped with liquid level sensor b;

[0006] The constant temperature system comprises a water inlet electromagnetic valve b, a cold water tank, a cold water machine, a temperature sensor a, a liquid level sensor c, a hot water tank, a heating rod group, a water inlet electromagnetic valve c, a circulating pump, a temperature sensor b and a liquid level sensor d.

[0007] The pipeline system comprises a water supply pump a, a pressure sensor a, a pneumatic tee ball valve a, a flow meter, a temperature sensor c, a pressure sensor b, a pneumatic tee ball valve b and a water supply pump b.

[0008] The test station comprises a test station and a standard station.

[0009] The capacity of the raw water tank and the pure water tank is 1T.

[0010] The temperature of the cold water tank is 10-20 degrees.

[0011] The temperature of the hot water tank is 25-50 degrees.

[0012] The test station (25) is provided with a power meter and a voltage regulator.

[0013] The standard station (26) is provided with a voltage regulator.

[0014] The washing machine energy efficiency and water efficiency test system device of the application can reasonably and effectively connect the main structure, the constant temperature system, the control system and the test system, realize the systematization and automatic control of the washing machine energy efficiency and water efficiency test, and is convenient and simple to operate and has a wide application range. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the schematic diagram of the technical scheme of the present application

[0016] Legend: water inlet electromagnetic valve a-1; liquid level sensor a-2; raw water tank-3; pure water instrument-4; pure water tank-5; liquid level sensor b-6; water chiller-7; temperature sensor a-8; cold water tank-9; water inlet electromagnetic valve b-10; liquid level sensor c-11; heating rod group-12; water inlet electromagnetic valve c-13; circulating pump-14; hot water tank-15; temperature sensor b-16; liquid level sensor d-17; water supply pump; a-18; pressure sensor a-19; pressure sensor b-20; pneumatic three-way ball valve a-21; pneumatic three-way ball valve b-22; flow meter-23; temperature sensor c-24; test station-25; standard station-26; water supply pump b-27. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0018] The technical scheme of the present application will be described in detail below in combination with the drawings.

[0019] As shown in Figure 1 1. A laundry washing machine energy efficiency and water efficiency test system device, comprising a test water preparation system, a constant temperature system, a pipeline system, and a test station, the test water preparation system being connected to the constant temperature system, the constant temperature system being connected to the pipeline system, and the pipeline system being connected to the test station.

[0020] The test water preparation system comprises a water inlet electromagnetic valve a1, a liquid level sensor a2, a raw water tank 3, a pure water instrument 4, a pure water tank 5, and a liquid level sensor b6; the water inlet electromagnetic valve a1 is connected to the raw water tank 3, the raw water tank 3 is connected to the pure water instrument 4 through a valve and a three-way, the pure water instrument 4 is connected to the pure water tank 5, the raw water tank 3 is provided with the liquid level sensor a2, and the pure water tank 5 is provided with the liquid level sensor b6.

[0021] The constant temperature system comprises a water inlet electromagnetic valve b10, a cold water tank 9, a cold water machine 7, a temperature sensor a8, a liquid level sensor c11, a hot water tank 15, a heating rod group 12, a water inlet electromagnetic valve c13, a circulating pump 14, a temperature sensor b16 and a liquid level sensor d17; the pure water tank 5 is connected to the bottom of the cold water tank 9 through the water inlet electromagnetic valve b10 and connected to the bottom of the hot water tank 15 through the water inlet electromagnetic valve c13, the top of the cold water tank 9 is circularly connected to the cold water machine 7, the top of the cold water tank 9 is provided with the temperature sensor a8, the bottom of the cold water tank 9 is provided with the liquid level sensor c11, and the top of the side of the cold water tank 9 is provided with a drain port; the hot water tank 15 is provided with the heating rod group 12, the bottom of the hot water tank 15 is provided with the liquid level sensor d17, the bottom of the hot water tank 15 is provided with the circulating pump 14 through a valve, the side of the hot water tank 15 is provided with the temperature sensor b16, and the top of the side of the hot water tank 15 is provided with a drain port.

[0022] The pipeline system comprises a water supply pump a18, a pressure sensor a19, a pneumatic three-way ball valve a21, a flow meter 23, a temperature sensor c24, a pressure sensor b20, a pneumatic three-way ball valve b22 and a water supply pump b27; the cold water tank 9 is connected to the pressure sensor a19 in two ways, one of which is directly connected through a valve, and the other of which is connected through a three-way, a valve and the water supply pump a18; the hot water tank 15 is connected to the pressure sensor b20 in two ways, one of which is directly connected through a valve, and the other of which is connected through a three-way, a valve and the water supply pump b27; the pressure sensor a19 is connected to the pneumatic three-way ball valve a21 and the pneumatic three-way ball valve b22 respectively, the pressure sensor b20 is connected to the pneumatic three-way ball valve a21 and the pneumatic three-way ball valve b22 respectively, and the pneumatic three-way ball valve a21 is sequentially connected to the flow meter 23 and the temperature sensor c24.

[0023] The test station comprises a test station 25 and a standard station 26; the temperature sensor c24 is connected to the test station 25 through a valve, the pneumatic three-way ball valve b22 is connected to the standard station 26 through a valve, and the test station 25 and the standard station 26 are connected to a drain port.

[0024] The capacity of the raw water tank 3 and the pure water tank 5 is 1T.

[0025] The temperature of the cold water tank 9 is 10-20 degrees.

[0026] The temperature of the hot water tank 15 is 25-50 degrees.

[0027] The test station 25 is provided with a power meter and a voltage regulator.

[0028] The standard station 26 is provided with a voltage regulator.

[0029] Test water preparation system: tap water enters the raw water tank 3 through the water inlet electromagnetic valve a1, when the water level in the raw water tank 3 reaches the set high liquid level, the liquid level sensor a2 controls the water inlet electromagnetic valve a1 to close, stopping water inflow; then the water in the raw water tank 3 flows into the pure water tank 5 after being treated by the pure water instrument 4, when the water level in the pure water tank 5 reaches the set high liquid level, the liquid level sensor b6 controls the pure water instrument 4 to stop running.

[0030] Constant temperature system: the water treated by the test water preparation system enters the cold water tank 9 and the hot water tank 15 through the water inlet electromagnetic valve b10 and the water inlet electromagnetic valve c13 respectively, when the liquid level in the cold water tank 9 and the hot water tank 15 reaches the set high liquid level, the liquid level sensor c11 and the liquid level sensor d17 control the water inlet electromagnetic valve b10 and the water inlet electromagnetic valve c13 to close, stopping water inflow; then according to the requirements of the test, the water in the cold water tank 9 is cooled by the cold water machine 7 group, and the water in the hot water tank 15 is heated by the heating rod group 12, when the set temperature of the system is reached, the temperature sensor a8 and the temperature sensor b16 control the cold water machine 7 and the heating rod group 12 to stop running respectively, and the hot water tank 15 is provided with a circulating pump 14 to ensure uniform heating of the water temperature in the tank.

[0031] Pipeline system: the water in the cold water tank 9 and the hot water tank 15 is respectively delivered to the test work station by the water supply pump a18 and the water supply pump b27, and the pipeline is provided with a pressure sensor a19, a pressure sensor b20, a temperature sensor c24 and a flow meter 23, which are respectively used to control the water supply pressure, the water supply temperature and display the water supply flow; the front end of the work station is respectively provided with a pneumatic three-way ball valve a21 and a pneumatic three-way ball valve b22, which can switch the cold and hot water supply in real time according to different requirements of different tests.

[0032] Test work station: the test work station is divided into a test work station 25 and a standard work station 26; the test work station 25 is used to test the test sample, and the standard work station 26 is used to test the standard reference machine, and the cleaning rate test needs to compare the results of the test sample with the results of the standard reference machine.

[0033] The test work station 25 includes a voltage regulator and a power meter, the voltage regulator controls the test voltage of the test work station 25, and the power meter is used to detect the electric energy consumed by the sample during the test; the standard work station 26 includes a voltage regulator, which controls the test voltage of the standard work station.

[0034] Working process: tap water enters the raw water tank 3 through the water inlet electromagnetic valve a1, and then the raw water in the raw water tank 3 flows into the pure water tank 5 after being treated by the pure water instrument 4. When the water level in the pure water tank 5 reaches the set high liquid level, the liquid level sensor b6 controls the pure water instrument 4 to stop running. The water treated by the test water preparation system enters the cold water tank 9 and the hot water tank 15 through the water inlet electromagnetic valve b10 and the water inlet electromagnetic valve c13 respectively. The water in the cold water tank 9 is cooled by the cold water machine 7, and the water in the hot water tank 15 is heated by the heating rod group 12. When the system set temperature is reached, the temperature sensor a8 and the temperature sensor b16 control the cold water machine 7 and the heating rod group 12 respectively to stop running. The hot water tank 15 is provided with a circulating pump 14 to ensure uniform heating of the water temperature in the tank. When the water temperature meets the test requirements, the water from the cold water tank 9 or the hot water tank 15 is supplied to the test station through the pneumatic three-way ball valve a21 and the pneumatic three-way ball valve b22 according to the test requirements. The pressure regulator is adjusted to meet the requirements of the standard test requirements. Then the test begins, and the test process is automatically controlled. After completion, the test is automatically ended.

Claims

1. A washing machine energy efficiency and water efficiency testing system device, characterized in that: The test water preparation system, the constant temperature system, the pipeline system and the test station are connected. The test water preparation system comprises a water inlet electromagnetic valve a (1), a liquid level sensor a (2), a raw water tank (3), a pure water instrument (4), a pure water tank (5) and a liquid level sensor b (6). The constant temperature system comprises a water inlet electromagnetic valve b (10), a cold water tank (9), a cold water machine (7), a temperature sensor a (8), a liquid level sensor c (11), a hot water tank (15), a heating rod group (12), a water inlet electromagnetic valve c (13), a circulating pump (14), a temperature sensor b (16) and a liquid level sensor d (17). The pipeline system comprises a water supply pump a (18), a pressure sensor a (19), a pneumatic three-way ball valve a (21), a flow meter (23), a temperature sensor c (24), a pressure sensor b (20), a pneumatic three-way ball valve b (22) and a water supply pump b (27). The pressure sensor a (19) is connected with the pneumatic three-way ball valve a (21) and the pneumatic three-way ball valve b (22), and the pressure sensor b (20) is connected with the pneumatic three-way ball valve a (21) and the pneumatic three-way ball valve b (22). The test station includes a test station (25), a standard station (26); the temperature sensor c (24) is connected to the test station (25) through a valve, the pneumatic three-way ball valve b (22) is connected to the standard station (26) through a valve, and the test station (25) and the standard station (26) are connected to a drain.

2. A system for testing the energy and water efficiency of a laundry machine according to claim 1, characterized in that: The capacity of the raw water tank (3) and the pure water tank (5) is 1T.

3. A system for testing the energy and water efficiency of a laundry machine according to claim 1, characterized in that: The temperature of the cold water tank (9) is 10-20 degrees.

4. A system for testing the energy and water efficiency of a laundry machine according to claim 1, characterized in that: The temperature of the hot water tank (15) is 25-50 degrees.

5. A system for testing the energy and water efficiency of a laundry machine according to claim 1, characterized in that: The test station (25) is provided with a power meter and a pressure regulator.

6. A system for testing the energy and water efficiency of a laundry machine according to claim 1, characterized in that: The standard station (26) is provided with a pressure regulator.

Citation Information

Patent Citations

  • Washing machine energy efficiency and water efficiency test system device

    CN221484809U