CN111257025A - Instant heater detection system and method - Google Patents
Instant heater detection system and method Download PDFInfo
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- CN111257025A CN111257025A CN202010103389.8A CN202010103389A CN111257025A CN 111257025 A CN111257025 A CN 111257025A CN 202010103389 A CN202010103389 A CN 202010103389A CN 111257025 A CN111257025 A CN 111257025A
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Abstract
The invention discloses a system and a method for detecting an instant heater.A detection controller supplies power to the instant heater to be detected through an alternating current power supply; the insulation and voltage resistance instrument is connected with the instantaneous heater to be detected, and the insulation resistance and the electrical strength of the instantaneous heater to be detected are detected; the power meter is also connected with an alternating current power supply and the instant heater to be detected, and detects the maximum power value and the average power value of the instant heater to be detected; the temperature polling instrument detects the temperature rise performance of the instant heater to be detected; the high water pressure generating instrument is controlled by the detection controller to generate specified water pressure to the instant heater to be detected, and the cracking and water leakage conditions of the instant heater to be detected are detected. The invention can quickly and effectively detect high water pressure leakage, temperature rise performance, water temperature stability, insulation resistance, electric strength, part surface temperature rise, maximum power, average power, voltage fluctuation resistance and durable aging reliability of the instant heater.
Description
Technical Field
The invention belongs to the field of inspection and detection, and particularly relates to a system and a method for detecting an instant heater.
Background
Nowadays, as the quality of life of people is continuously improved, people are more and more attentive to the quality of life, and the mode of heating raw water by using a gas stove or an induction cooker to obtain hot water has been replaced by the heater capable of instantly providing hot water.
The instant heater is mainly used for heating water, and the working principle of the instant heater is to convert electric energy into heat energy. Because the instant heater has the characteristics of quick heating, convenient use, safety, reliability and convenient cleaning, the instant heater is widely used by people nowadays. But also the safety quality problem often appears in the user use, so carry out the pertinence to each aspect performance of heater in the twinkling of an eye, have important meaning to promoting heater life and security in the twinkling of an eye.
Disclosure of Invention
The invention aims to provide a quick, efficient and comprehensive instant heater detection system and method.
In order to achieve the purpose, the technical scheme of the invention is as follows: an instant heater detection system comprises a detection controller, an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high-water-pressure-making instrument, wherein,
the detection controller is respectively connected with an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high water pressure instrument, and the detection controller, the alternating current power supply, the insulation and voltage withstand instrument, the power meter, the temperature polling instrument and the high water pressure instrument are respectively connected with an instant heater to be detected;
the detection controller supplies power to the instant heater to be detected through an alternating current power supply; the insulation and voltage resistance instrument is connected with the instantaneous heater to be detected, and the insulation resistance and the electrical strength of the instantaneous heater to be detected are detected; the power meter is also connected with an alternating current power supply and the instant heater to be detected, and detects the maximum power value and the average power value of the instant heater to be detected; the temperature polling instrument detects the temperature rise performance of the instant heater to be detected; the high water pressure generating instrument is controlled by the detection controller to generate specified water pressure to the instant heater to be detected, and the cracking and water leakage conditions of the instant heater to be detected are detected.
Preferably, the alternating current power supply is programmable and adjustable.
Preferably, the power meter is connected with the instant heater to be tested through a mutual inductor.
Preferably, the temperature polling instrument is respectively connected with a water inlet and a water outlet of the instant heater to be detected, and is communicated with a fourth serial port of the detection controller in an RS232 mode.
Based on the above purpose, the present invention further provides a detection method of the instant heater detection system, which comprises the following steps:
s10, respectively connecting the instantaneous heater to be tested with a detection controller, an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high water pressure making instrument;
s20, detecting the high water pressure leakage performance, temperature rise performance, insulation resistance, electric strength, power and voltage fluctuation resistance of the instant heater to be detected;
and S30, the detection controller returns the detection result to the upper computer.
Preferably, in S20, the temperature stability of the instantaneous heater to be measured is also detected by the temperature polling device and the ac power supply.
Preferably, the water temperature stability comprises static performance and dynamic performance, the detection of the static performance is that the temperature of inlet water is a preset value and is not changed, the temperature of the instant heater to be detected is set to be the lowest level, and whether the inlet water flow is lower than the set temperature of minus 2 ℃ or not is judged when the inlet water flow is the lowest level and the highest level; setting the temperature of the instant heater to be detected as the highest grade, and judging whether the water inlet flow is higher than the set temperature by +2 ℃ when the water inlet flow is the lowest grade and the highest grade; if not, the static performance is qualified.
Preferably, the detection of the dynamic performance is that the inflow water flow of the instant heater to be detected is set as the highest level, the inflow water temperature is unchanged as the preset value, and after the instant heater to be detected is set as any temperature value for 10 seconds, whether the outflow water temperature is within +/-2 ℃ of the set temperature is determined, and if so, the dynamic performance is qualified.
Preferably, the detection voltage fluctuation resistance is that the detection controller controls the alternating current power supply to output voltages of 115% and 85% of rated voltages respectively, and if the instant heater to be detected outputs hot water with a set water temperature, the voltage fluctuation resistance is qualified.
Preferably, the durable aging detection is further performed in S20, the detection controller controls a plurality of instant heaters to be detected to continuously work, the instant heaters to be detected communicate with the upper computer in an RS485 mode, the test result and the cycle number are uploaded, the upper computer sends the serial number of the instant heaters to be detected, which cannot continuously work, to the detection controller, and the detection controller stops supplying power to the instant heaters to be detected with the corresponding serial numbers.
The invention has the beneficial effects that: bathroom equipment, intelligent toilet lid etc. need to provide hot water in time, therefore, these equipment generally carry the instantaneous heater on, ensure to supply hot water in time. The instantaneous heater generally includes a housing, a heating pipe disposed in the housing, a water inlet and a water outlet, the water inlet and the water outlet are respectively disposed at two ends of the heating pipe, and water enters the housing from the water inlet to contact with the heating pipe to be heated, and then is discharged from the water outlet. In the long-term use process, no matter leakage, temperature rise, water temperature stability, insulation resistance, electric strength, power and voltage fluctuation resistance all influence the security and the life-span of heater in twinkling of an eye. The invention can quickly and effectively detect high water pressure leakage, temperature rise performance, water temperature stability, insulation resistance, electric strength, part surface temperature rise, maximum power, average power, voltage fluctuation resistance and durable aging reliability of the instant heater.
Drawings
FIG. 1 is a block diagram of an instantaneous heater detection system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a transient heater detection system in accordance with another embodiment of the present invention;
FIG. 3 is a flow chart of the steps of the instant heater detection method of the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
System example 1
Referring to fig. 1, an instantaneous heater detection system comprises a detection controller 10, an alternating current power supply 20, an insulation and voltage withstand instrument 30, a power meter 40, a temperature patrol instrument 50 and a high water pressure generating instrument 60, wherein,
the detection controller 10 is respectively connected with the alternating current power supply 20, the insulation and voltage withstand instrument 30, the power meter 40, the temperature patrol instrument 50 and the high-water-pressure making instrument 60, and the detection controller 10, the alternating current power supply 20, the insulation and voltage withstand instrument 30, the power meter 40, the temperature patrol instrument 50 and the high-water-pressure making instrument 60 are respectively connected with the instantaneous heater 80 to be detected;
the detection controller 10 supplies power to the instantaneous heater 80 to be detected through the alternating current power supply 20; the insulation and voltage withstand instrument 30 is connected with the instantaneous heater 80 to be tested, and the insulation resistance and the electrical strength of the instantaneous heater are detected; the power meter 40 is also connected with the alternating current power supply 20 and the instant heater 80 to be detected, and detects the maximum power value and the average power value of the instant heater 80 to be detected; the temperature polling instrument 50 detects the temperature rise performance of the instant heater 80 to be detected; the high water pressure generating instrument 60 is controlled by the detection controller 10 to generate a specified water pressure to the instant heater 80 to be detected, and detects the cracking and water leakage conditions of the instant heater 80 to be detected.
System embodiment 2
Referring to fig. 2, the ac power supply 20 is programmable and adjustable, and the detection controller 10 controls the amplitude and frequency of the output of the ac power supply 20. The power meter 40 is connected with the instant heater 80 to be measured through the mutual inductor 48, specifically, is connected with the alternating current power supply port 82 of the instant heater 80 to be measured, the input detection 11 of the detection controller 10 is connected with the alternating current power supply port 82 of the instant heater 80 to be measured through the mutual inductor 48 to detect the voltage fluctuation thereof, the mutual inductor 48 proportionally converts high voltage or large current into standard low voltage (100V) or standard small current (5A or 1A, both of which refer to rated values) so as to realize the standardization and miniaturization of a measuring instrument, a protective device and an automatic control device, and meanwhile, the mutual inductor 48 can also be used for separating a high voltage system so as to ensure the safety of human bodies and equipment.
The temperature polling instrument 50 is connected to the water inlet 84 and the water outlet 85 of the instant heater 80 to be tested, and communicates with the fourth serial port 15 of the detection controller 10 in an RS232 manner. The high water pressure generating instrument 60 is output-controlled by the detection controller 10 through the fourth serial port 15, and supplies a specified water pressure to the water inlet 84 of the instantaneous heater 80 to be measured. The detection controller 10 is connected to the heating serial port 83 of the instant heater 80 to be measured through the first serial port 12, and outputs heating control to the instant heater 80 to be measured by TTL communication. The second serial port 13 of the detection controller 10 communicates with the alternating current power supply 20 in an RS232 mode, the third serial port 14 communicates with the voltage-withstand instrument 30 in an RS232 mode, communicates with the power meter 40 in an RS232 mode, the voltage-withstand instrument 30 is connected with the shell 81 of the instantaneous heater 80 to be detected, the fifth serial port 16 communicates with the upper computer 70 in an RS232 mode, and the detection result is uploaded to the upper computer 70 to be displayed and a detection report is provided.
Method embodiment
Referring to fig. 3, the method comprises the following steps:
s10, respectively connecting the instantaneous heater to be tested with a detection controller, an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high water pressure making instrument;
s20, detecting the high water pressure leakage performance, temperature rise performance, insulation resistance, electric strength, power and voltage fluctuation resistance of the instant heater to be detected;
and S30, the detection controller returns the detection result to the upper computer.
In a specific embodiment, in S20, the water temperature stability of the instantaneous heater to be tested is also detected by the temperature polling instrument and the ac power supply, the water temperature stability includes static performance and dynamic performance, the detection of the static performance is that the temperature of the inlet water is a preset value (e.g., 15 ℃), the temperature of the instantaneous heater to be tested is set to be the lowest level, and when the flow of the inlet water is the lowest level and the highest level, whether the temperature is lower than the set temperature of-2 ℃; setting the temperature of the instant heater to be detected as the highest grade, and judging whether the water inlet flow is higher than the set temperature by +2 ℃ when the water inlet flow is the lowest grade and the highest grade; if not, the static performance is qualified.
The detection of the dynamic performance is that the inflow flow of the instant heater to be detected is set as the highest level, the inflow water temperature is unchanged at a preset value (such as 15 ℃), and after the instant heater to be detected is set to be any temperature value for 10s, whether the outflow water temperature is within +/-2 ℃ of the set temperature is determined, and the dynamic performance is qualified.
The detection of the voltage fluctuation resistance is that the detection controller controls the alternating current power supply to output voltages of 115% and 85% of rated voltage respectively, whether the instantaneous heater to be detected outputs hot water with set water temperature or not is detected, and the voltage fluctuation resistance is qualified if the instantaneous heater to be detected outputs hot water with set water temperature.
And S20, performing durable aging detection, controlling a plurality of instant heaters to be detected to continuously work by the detection controller, communicating the instant heaters to be detected with the upper computer in an RS485 mode, uploading a test result and cycle times, sending the serial numbers of the instant heaters to be detected, which cannot continuously work, to the detection controller by the upper computer, and stopping supplying power to the instant heaters to be detected with corresponding serial numbers by the detection controller.
And S20, detecting the insulation resistance and the electrical strength, namely, after high and low temperature tests, high temperature and high humidity tests and soaking tests are performed, performing insulation resistance and electrical strength detection, wherein the detection method comprises the steps that a probe of the voltage withstand instrument is connected with an instant heater to be detected, a detection controller controls the voltage withstand instrument to perform insulation resistance detection and alternating current voltage withstand detection, and a test result is returned to an upper computer to be displayed and recorded.
In the power detection in the step S20, the water inlet temperature of the instant heater to be detected is set as the lowest allowable water inlet temperature value in the specification, the water inlet flow and the water outlet temperature are set as the maximum values, the detection controller controls the instant heater to be detected to heat, and the power measurement value of the power meter is obtained in real time to calculate the maximum power value and the average power value.
And S20, detecting the surface temperature rise of the part, controlling the instantaneous heater to be detected to normally heat and work under 1.06 and 0.94 times of rated voltage by the detection controller, monitoring the temperature on each power component of the instantaneous heater to be detected by using a thermocouple, returning multi-path real-time temperature values to the detection controller, and uploading the temperature values to an upper computer to process and judge whether the temperature rise is within a reasonable temperature rise range.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. An instant heater detection system is characterized by comprising a detection controller, an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high-water-pressure generating instrument, wherein,
the detection controller is respectively connected with an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high water pressure instrument, and the detection controller, the alternating current power supply, the insulation and voltage withstand instrument, the power meter, the temperature polling instrument and the high water pressure instrument are respectively connected with an instant heater to be detected;
the detection controller supplies power to the instant heater to be detected through an alternating current power supply; the insulation and voltage resistance instrument is connected with the instantaneous heater to be detected, and the insulation resistance and the electrical strength of the instantaneous heater to be detected are detected; the power meter is also connected with an alternating current power supply and the instant heater to be detected, and detects the maximum power value and the average power value of the instant heater to be detected; the temperature polling instrument detects the temperature rise performance of the instant heater to be detected; the high water pressure generating instrument is controlled by the detection controller to generate specified water pressure to the instant heater to be detected, and the cracking and water leakage conditions of the instant heater to be detected are detected.
2. The system of claim 1, wherein the ac power source is programmable and adjustable.
3. The system of claim 1, wherein the power meter is connected to the instantaneous heater under test via a transformer.
4. The system according to claim 1, wherein the temperature polling instrument is respectively connected with the water inlet and the water outlet of the instantaneous heater to be detected, and is communicated with the fourth serial port of the detection controller in an RS232 mode.
5. A method for testing a transient heater test system as claimed in any one of claims 1 to 4, comprising the steps of:
s10, respectively connecting the instantaneous heater to be tested with a detection controller, an alternating current power supply, an insulation and voltage withstand instrument, a power meter, a temperature polling instrument and a high water pressure making instrument;
s20, detecting the high water pressure leakage performance, temperature rise performance, insulation resistance, electric strength, power and voltage fluctuation resistance of the instant heater to be detected;
and S30, the detection controller returns the detection result to the upper computer.
6. The method according to claim 5, wherein in the step S20, the water temperature stability of the instantaneous heater to be tested is detected through a temperature polling instrument and an alternating current power supply.
7. The method of claim 6, wherein the water temperature stability comprises static performance and dynamic performance, the detection of the static performance is that the temperature of the inlet water is unchanged at a preset value, the temperature of the instant heater to be detected is set to be the lowest level, and whether the inlet water flow is lower than the set temperature by-2 ℃ or not when the inlet water flow is the lowest level and the highest level; setting the temperature of the instant heater to be detected as the highest grade, and judging whether the water inlet flow is higher than the set temperature by +2 ℃ when the water inlet flow is the lowest grade and the highest grade; if not, the static performance is qualified.
8. The method of claim 7, wherein the dynamic performance is detected by setting the inlet water flow of the instant heater to be tested to the highest level, the inlet water temperature to be the preset value, and after setting the instant heater to be tested to any temperature value for 10s, determining whether the outlet water temperature is within ± 2 ℃ of the set temperature, and determining that the dynamic performance is qualified.
9. The method as claimed in claim 5, wherein the detecting of the voltage fluctuation resistance is that the detecting controller controls the ac power supply to output voltages of 115% and 85% of rated voltages respectively, and if the instantaneous heater to be detected outputs hot water with a set water temperature, the voltage fluctuation resistance is qualified.
10. The method according to claim 5, wherein in S20, the endurance aging test is further performed, the test controller controls a plurality of instant heaters to be tested to operate continuously, the instant heaters to be tested communicate with the upper computer in an RS485 mode, the test result and the cycle number are uploaded, the upper computer sends the number of the instant heaters to be tested that cannot operate continuously to the test controller, and the test controller stops supplying power to the instant heaters to be tested with corresponding numbers.
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| CN202010103389.8A CN111257025A (en) | 2020-02-20 | 2020-02-20 | Instant heater detection system and method |
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| CN202010103389.8A CN111257025A (en) | 2020-02-20 | 2020-02-20 | Instant heater detection system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984112A (en) * | 2021-09-30 | 2022-01-28 | 浙江大学台州研究院 | Intelligent automatic testing system for key part performance of toilet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984112A (en) * | 2021-09-30 | 2022-01-28 | 浙江大学台州研究院 | Intelligent automatic testing system for key part performance of toilet |
| WO2023050607A1 (en) * | 2021-09-30 | 2023-04-06 | 浙江大学台州研究院 | Smart toilet key component performance automatic test system |
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Effective date of registration: 20200727 Address after: 318000, No. 399, Central Avenue, Taizhou Economic Development Zone, Zhejiang Applicant after: Taizhou product quality and safety inspection Research Institute Applicant after: RESEARCH INSTITUTE OF ZHEJIANG University TAIZHOU Address before: 318000, No. 399, Central Avenue, Taizhou Economic Development Zone, Zhejiang Applicant before: Taizhou product quality and safety inspection Research Institute |
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