Water heater testing equipment and systems

Abstract

The present invention relates to a water heater detection device and system. By setting a supply pipeline and a control valve in a control device and a circulation device, it can ensure that the process of injecting a test medium into a test water heater by a thermostat is controllable. By setting a circulation pipeline, a temperature detector and a control valve in the circulation device, accurate control and detection of the test medium temperature before and after the test are achieved. By comparing the first temperature obtained by the temperature sensing device in the test water heater with the second temperature obtained by the temperature detector in the circulation pipeline, it is determined whether the test is completed according to the comparison result. By adopting the technical solution of the present invention, it is not necessary to manually control each link in the test process, there is no error caused by manually opening and closing the control valve and manually measuring the temperature, the test parameters are highly accurate, and the reliability of the water heater detection results is effectively improved, saving time and resources.

Description

Technical Field

[0001] The present invention relates to the technical field of water heater detection, and in particular to a water heater detection device and system. Background Art

[0002] As people's living standards continue to improve, their requirements for comfort in family life are also getting higher and higher. Water heaters have entered thousands of households, providing convenience for people's lives and becoming an important electrical appliance in people's home life. In order to ensure the quality of water heaters, water heaters need to undergo product performance tests before leaving the factory. Only after the product performance tests are qualified can the water heaters be sold.

[0003] However, the product performance test operation process of water heaters is very cumbersome, especially for air-energy water heaters. Not only is the test cycle long and the test items numerous, but each link in the test process is manually controlled. The uncontrollability of manual operation and temperature measurement errors can easily lead to inaccurate test parameters, which in turn makes the test results unreliable and wastes time and resources. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a water heater detection device and system to overcome the problems of low reliability of water heater detection results and waste of time and resources.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A water heater detection device, comprising: a circulation device, a control device and a constant temperature device storing a test medium; the circulation device comprises a supply pipeline, a circulation pipeline, a temperature detector and a plurality of control valves; wherein the control valves are arranged on the supply pipeline and the circulation pipeline, and the temperature detector is also arranged on the circulation pipeline;

[0007] All the control valves are connected to the control device, and the control device is used to control the control valves on the supply pipeline to be in an open state after receiving a start instruction, so that the thermostat and the test water heater are connected, and the thermostat injects the test medium into the test water heater;

[0008] The control device is also used to be connected to the temperature sensing device of the test water heater, and the control device obtains the first temperature detected by the temperature sensing device. If the first temperature reaches the preset startup temperature, the control device controls the valve on the circulation pipeline to be in an open state, so that the test medium circulates in the test water heater and the circulation pipeline;

[0009] The temperature detector is used to detect a second temperature in the circulation pipeline;

[0010] The control device is connected to the temperature detector, and is also used to be connected to the heating component of the test water heater; the control device is also used to control all the control valves to close and control the heating component to start heating if it is detected that the second temperature reaches the standard variation range of the preset start-up temperature;

[0011] When the control device detects that the first temperature reaches the preset shutdown temperature, the heating component is controlled to shut down, and the control valve on the circulation pipeline is controlled to be in an open state, so that the test medium circulates in the test water heater and the circulation pipeline to obtain the second temperature; if the second temperature is within the standard variation range of the preset shutdown temperature, it indicates that the test is completed;

[0012] The control device is also connected to an external computing device, and is used to send the test parameters generated during the test process to the computing device, so that the computing device determines the test results according to the test parameters.

[0013] Further, in the above-mentioned water heater detection equipment, the control valve includes a constant temperature outlet valve, a constant temperature inlet valve, a test outlet valve and a test inlet valve;

[0014] The supply pipeline includes a first pipeline and a second pipeline;

[0015] The first pipeline is used to connect the outlet of the thermostatic device and the inlet of the test water heater, and the thermostatic outlet valve and the test inlet valve are arranged on the first pipeline; wherein the thermostatic outlet valve is arranged at the outlet of the thermostatic device, and the test inlet valve is arranged at the inlet of the test water heater;

[0016] The second pipeline is used to connect the inlet of the thermostatic device and the outlet of the test water heater, and the thermostatic inlet valve and the test outlet valve are arranged on the second pipeline; wherein the thermostatic inlet valve is arranged at the inlet of the thermostatic device, and the test outlet valve is arranged at the outlet of the test water heater.

[0017] Furthermore, in the above-mentioned water heater detection device, a first interface is provided on the first pipeline, and a second interface is provided on the second pipeline; wherein the first interface is located between the thermostatic outlet valve and the test inlet valve, and the second interface is located between the thermostatic inlet valve and the test outlet valve;

[0018] The first interface and the second interface are connected via a third pipeline;

[0019] The circulation pipeline includes the third pipeline, a first pipeline between the inlet of the test water heater and the first interface, and a second pipeline between the outlet of the test water heater and the second interface.

[0020] Furthermore, the above-mentioned water heater detection device also includes a drain valve;

[0021] At least one target pipeline among the first pipeline, the second pipeline and the third pipeline is provided with a drainage interface;

[0022] The drainage valve is arranged at the drainage interface;

[0023] The drain valve is connected to the control device, and the control device is used to control the drain valve, the test outlet valve and the test inlet valve to open after the test is completed, so as to discharge the test medium.

[0024] Furthermore, in the above-mentioned detection equipment for the water heater, the thermostatic outlet valve, the thermostatic inlet valve, the test outlet valve, the test inlet valve and the drain valve are all solenoid valves.

[0025] Furthermore, in the above-mentioned water heater detection device, the third pipeline is the target pipeline.

[0026] Furthermore, in the above water heater detection device, the circulation device further comprises a circulation power component;

[0027] The circulating power component is arranged on the circulating pipeline;

[0028] The circulation power component is also connected to the control device, and is used to work under the control of the control device to circulate the test medium in the test water heater and the circulation pipeline, or to discharge the test medium from the drainage interface.

[0029] Furthermore, in the above-mentioned water heater detection equipment, the circulation power component is arranged on the third pipeline.

[0030] Furthermore, in the above-mentioned water heater detection equipment, the circulation power component includes a circulation water pump.

[0031] Furthermore, the water heater detection device described above further includes a human-computer interaction device;

[0032] The human-computer interaction device is connected to the control device;

[0033] The human-machine interaction device is used to receive the start instruction and / or the control instruction of the control valve, and send the start instruction and / or the control instruction to the control device, so that the control device starts detection according to the start instruction and / or changes the switch state of the corresponding control valve according to the control instruction;

[0034] The human-computer interaction device is also used to display the first temperature, the second temperature, and to obtain and display the preset startup temperature and the preset shutdown temperature input by the inspection personnel.

[0035] Furthermore, in the above-mentioned water heater detection equipment, the human-computer interaction device includes a touchable display screen.

[0036] Furthermore, in the above-mentioned detection device for the water heater, the temperature detector comprises a platinum resistance temperature detection head.

[0037] Further, in the above water heater detection device, the test medium includes water;

[0038] The constant temperature device comprises a constant temperature water tank.

[0039] Furthermore, in the water heater detection equipment described above, the test water heater is an air-energy water heater.

[0040] Furthermore, the present invention also provides a water heater detection system, comprising a computing device and any one of the water heater detection devices described above;

[0041] The computing device is connected to the detection device of the water heater;

[0042] The computing device is used to obtain test parameters generated during the test from the detection device of the water heater, and determine the test results according to the test parameters.

[0043] The water heater detection device and system of the present invention can ensure that the process of injecting the test medium into the test water heater by the thermostat is controllable by setting the supply pipe and control valve in the control device and the circulation device, and realizes the precise control and detection of the test medium temperature before and after the test by setting the circulation pipe, temperature detector and control valve in the circulation device, and determines whether the test is completed according to the comparison result by comparing the first temperature obtained by the temperature sensing device in the test water heater with the second temperature obtained by the temperature detector in the circulation pipe. By adopting the technical solution of the present invention, there is no need to manually control each link in the test process, there is no error caused by manually opening and closing the control valve and manually measuring the temperature, the test parameters are highly accurate, and the reliability of the water heater detection results is effectively improved, saving time and resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural diagram provided by an embodiment of the detection device for water heater of the present invention;

[0046] Figure 2 It is a circuit block diagram provided by an embodiment of the detection device for water heater of the present invention;

[0047] Figure 3 It is a flow chart provided by an embodiment of the detection device for water heater of the present invention;

[0048] Figure 4 The present invention is a circuit block diagram of a detection system for a water heater provided in one embodiment. DETAILED DESCRIPTION

[0049] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0050] Figure 1 This is a structural diagram provided by an embodiment of the detection device for water heater of the present invention. Figure 2 FIG. 1 is a circuit diagram of an embodiment of a water heater detection device of the present invention. Figure 1 and Figure 2 As shown, the water heater detection device of this embodiment includes a circulation device 10, a control device 11 and a constant temperature device 12 storing a test medium. A suitable test medium can be selected according to different test conditions. In a specific embodiment, the test medium is water and the constant temperature device 12 is a constant temperature water tank.

[0051] The circulation device 10 comprises a supply pipeline 100, a circulation pipeline 101, a temperature detector 102 and a plurality of control valves 103. The supply pipeline 100 and the circulation pipeline 101 are both provided with control valves 103, and the circulation pipeline 101 is also provided with a temperature detector 102.

[0052] All control valves 103 are connected to the control device 11, and are turned on or off under the control of the control device 11. After the test personnel install the test water heater 20 on the test equipment tooling of the water heater of the present application, they can send a start command to the control device 11. It should be noted that in order to facilitate the work of the test personnel, a quick connector can be used for installation. The control device 11 is used to control the control valve 103 on the supply pipeline 100 to be in an open state after receiving the start command, so that the thermostat 12 and the test water heater 20 are connected, and the thermostat 12 injects the test medium into the test water heater 20.

[0053] The control device 11 is also used to connect with the temperature sensing device 21 of the test water heater 20. The temperature sensing device 21 of the test water heater 20 includes a first temperature sensing package 211 and a second temperature sensing package 212 disposed in the test water heater 20, and the first temperature sensing package 211 and the second temperature sensing package 212 are both connected with the control device 11.

[0054] The control device 11 obtains the first temperature detected by the temperature sensing device 21. If the first temperature reaches the preset startup temperature, the control valve 103 on the circulation pipe 101 is controlled to be in an open state, so that the test medium circulates in the test water heater 20 and the circulation pipe 101, so that the temperature of the test medium is uniform, thereby improving the accuracy of the test. The test personnel can preset the startup temperature according to the actual situation, and this embodiment does not limit it.

[0055] The temperature detector 102 is used to detect the second temperature in the circulation pipe 101. The control device 11 is connected to the temperature detector 102. The control device 11 is also used to be connected to the heating component 22 of the test water heater 20. If it is detected that the second temperature reaches the standard variation range of the preset startup temperature, the control device 11 controls all control valves 103 to close and controls the heating component 22 to start heating.

[0056] If it is detected that the second temperature is outside the standard variation range of the preset startup temperature, the control device 11 needs to control the control valve 103 in the supply pipe 100 to open, continue to inject the test medium into the test water heater 20, and then re-detect whether the second temperature reaches the standard variation range of the preset startup temperature. If the second temperature is still outside the standard variation range of the preset startup temperature after a preset number of repeated operations, it means that the test water heater 20 has a fault and the test water heater 20 is unqualified. The number of repeated operations can be preset according to actual conditions, and this embodiment does not limit it.

[0057] The standard variation range of the preset startup temperature is generally ±0.5°C of the preset startup temperature.

[0058] The temperature of the test medium in the thermostat 12 is constant. After the control device 11 receives the start command, it controls the control valve 103 on the supply pipe 100 to be in an open state. The test medium with a constant temperature in the thermostat 12 is injected into the test water heater 20. The water in the test water heater is gradually filled. When the first temperature detected by the temperature sensing device 21 reaches the preset start-up temperature, the injection of the test medium is stopped. In a specific implementation, the preset start-up temperature is 15°C, and the standard variation range of the preset start-up temperature is 15±0.5°C.

[0059] When the first temperature detected by the temperature sensing device 21 reaches 15°C, the injection of the test medium is stopped. Only the control valve 103 on the circulation pipe 101 is controlled to be in an open state, so that the test medium circulates in the test water heater 20 and the circulation pipe 101, so that the temperature of the test medium is uniform and the accuracy of the test is improved. If the second temperature is detected to reach 15±0.5°C, all control valves 103 can be closed and the heating component 22 starts heating.

[0060] When the control device 11 detects that the first temperature reaches the preset shutdown temperature, it controls the heating component 22 to shut down, and controls the control valve 103 on the circulation pipe 101 to be in an open state, so that the test medium circulates in the test water heater 20 and the circulation pipe 101, and the temperature detector 102 obtains the second temperature; if the second temperature is within the standard variation range of the preset shutdown temperature, it indicates that the test is completed.

[0061] The control device 11 is also connected to an external computing device, and the control device 11 is used to send the test parameters generated during the test to the computing device, so that the computing device determines the test results according to the test parameters. For example, the test parameters include a first temperature at a preset time, a second temperature at a preset time, a preset startup temperature, a preset shutdown temperature, and the time when the first temperature reaches the preset startup temperature, the time when the first temperature reaches the preset shutdown temperature, etc. The control device 11 can output specific test parameters according to the parameter requirement instruction of the computing device, which is not limited in this embodiment.

[0062] In addition, a start sensor and a stop sensor in the test water heater 20 may be connected to the control device 11 to send the working status information of the test water heater 20 to the control device 11 .

[0063] The standard variation range of the preset shutdown temperature is generally ±0.5°C of the preset shutdown temperature.

[0064] For example, the preset shutdown temperature is 55°C. When the control device 11 detects that the first temperature reaches 55°C, the heating component 22 is controlled to shut down. When the test medium circulates in the test water heater 20 and the circulation pipe 101, if the second temperature obtained by the temperature detector 102 is within 55°C ± 0.5°C, it means that the test water heater is qualified.

[0065] It should be noted that the control device 11 can use a single-chip microcomputer of the STM series, such as STM8, STM32, etc., which is not limited in this embodiment; the temperature detector 102 uses a platinum resistance temperature detection head to obtain temperature data with higher accuracy, and the control valve 103 uses a solenoid valve. The above components are relatively common, and the technology is very mature and has very wide applications in many fields. Those skilled in the art can use the disclosed embodiments of the present invention. Figure 1 , Figure 2 Based on this, it is easy to obtain the wiring diagram between the control device 11 and the temperature detector 102 and the control valve 103, which will not be described in detail in this embodiment.

[0066] Furthermore, the control valve 103 of this embodiment includes a constant temperature outlet valve 1031 , a constant temperature inlet valve 1032 , a test outlet valve 1033 and a test inlet valve 1034 .

[0067] The supply pipeline 100 includes a first pipeline A1 and a second pipeline A2. The first pipeline A1 is used to connect the outlet of the thermostatic device 12 and the inlet of the test water heater 20. The first pipeline A1 is provided with a thermostatic outlet valve 1031 and a test inlet valve 1034; wherein the thermostatic outlet valve 1031 is provided at the outlet of the thermostatic device 12, and the test inlet valve 1034 is provided at the inlet of the test water heater 20. The second pipeline A2 is used to connect the inlet of the thermostatic device 12 and the outlet of the test water heater 20. The second pipeline A2 is provided with a thermostatic inlet valve 1032 and a test outlet valve 1033; wherein the thermostatic inlet valve 1032 is provided at the inlet of the thermostatic device 12, and the test outlet valve 1033 is provided at the outlet of the test water heater 20.

[0068] Specifically, when the control device 11 receives the start command, the control device 11 controls the constant temperature outlet valve 1031, the constant temperature inlet valve 1032, the test outlet valve 1033 and the test inlet valve 1034 on the supply pipe 100 to be in an open state, and the constant temperature medium in the constant temperature device 12 flows from the outlet of the constant temperature device 12 through the first pipeline A1 into the inlet of the test water heater 20. When the test water heater 20 is filled, the test medium flows back to the constant temperature device 12 from the outlet of the test water heater 20 through the second pipeline A2.

[0069] Further, a first interface is provided on the first pipeline A1, and a second interface is provided on the second pipeline A2; wherein the first interface is located between the thermostatic outlet valve 1031 and the test inlet valve 1034, and the second interface is located between the thermostatic inlet valve 1032 and the test outlet valve 1033. The first interface and the second interface are connected through the third pipeline A3. The circulation pipeline 101 includes the third pipeline A3, the first pipeline A1 between the inlet of the test water heater 20 and the first interface, and the second pipeline A2 between the outlet of the test water heater 20 and the second interface.

[0070] Specifically, if the first temperature reaches the preset startup temperature or the first temperature reaches the preset shutdown temperature, only the test outlet valve 1033 and the test inlet valve 1034 on the circulation pipe 101 are controlled to be in an open state, and the remaining constant temperature outlet valve 1031 and constant temperature inlet valve 1032 are closed to allow the test medium to circulate in the test water heater 20 and the circulation pipe 101.

[0071] Furthermore, the detection device of the water heater of this embodiment also includes a drain valve 13. A drain interface is provided on at least one target pipeline among the first pipeline A1, the second pipeline A2 and the third pipeline A3, and the drain valve 13 is provided at the drain interface. For example, the third pipeline A3 is the target pipeline, that is, the drain interface is provided on the third pipeline A3. The drain valve 13 is connected to the control device 11, and the control device 11 is used to control the drain valve 13, the test outlet valve 1033 and the test inlet valve 1034 to open, and the constant temperature outlet valve 1031 and the constant temperature inlet valve 1032 to close after the test is completed, so as to discharge the test medium.

[0072] Among them, the constant temperature outlet valve 1031, the constant temperature inlet valve 1032, the test outlet valve 1033, the test inlet valve 1034 and the drain valve 13 are all solenoid valves.

[0073] Furthermore, the circulation device 10 further includes a circulation power component 104, which is disposed on the circulation pipe 101. The circulation power component 104 is also connected to the control device 11, and the circulation power component 104 is used to work under the control of the control device 11, so that the test medium circulates in the test water heater 20 and the circulation pipe 101, or so that the test medium is discharged from the drainage interface.

[0074] Specifically, if the first temperature reaches the preset startup temperature or the first temperature reaches the preset shutdown temperature, when the control device 11 controls the test outlet valve 1033 and the test inlet valve 1034 on the circulation pipe 101 to open, the control device 11 also controls the circulation power component 104 to open, so that the test medium can circulate in the test water heater 20 and the circulation pipe 101, so that the temperature of the test medium is uniform, thereby improving the accuracy of the test; after the detection is completed, when the control device 11 controls the drain valve 13, the test outlet valve 1033 and the test inlet valve 1034 to open, the control device 11 also controls the circulation power component 104 to open, so as to discharge the test medium from the drain interface.

[0075] The circulating power component 104 includes a circulating water pump.

[0076] In a specific implementation, the circulating power component 104 and the drainage interface are both arranged on the third pipeline A3.

[0077] It should be noted that the temperature detector 102 can be set on the first pipeline A1 and located at the inlet of the test water heater 20; the temperature detector 102 can also be set on the second pipeline A2 and located at the outlet of the test water heater 20; the temperature detector 102 can also be set on the third pipeline A3, which is not limited in this embodiment.

[0078] It should be noted that if the temperature detector 102 is located on the first pipeline A1, the temperature detector 102 is arranged between the first interface and the test inlet valve 1034; if the temperature detector 102 is located on the second pipeline A2, the temperature detector 102 is arranged between the second interface and the test outlet valve 1033 to avoid interference with the temperature detector 102 due to the heating process of the test water heater 20.

[0079] like Figure 1 As shown, in a specific embodiment, the temperature detector 102 is arranged at the inlet of the test water heater 20. When the test medium circulates in the test water heater 20 and the circulation pipe 101, the circulation power component 104 causes the test medium to flow out from the inlet of the test water heater 20, and flow into the outlet of the test water heater 20 after passing through the circulation pipe 101, that is, Figure 1 The counterclockwise circulation based on the reference can make the temperature of the test medium uniform by circulating in the circulation pipe 101 and the test water heater 20, thereby improving the accuracy of the test.

[0080] In order to avoid errors caused by temperature loss of the test medium during the circulation process, the first pipeline A1, the second pipeline A2 and the third pipeline A3 are all made of heat-insulating materials.

[0081] Furthermore, the detection device of the water heater of this embodiment also includes a human-machine interaction device 14. The human-machine interaction device 14 is connected to the control device 11. Specifically, the human-machine interaction device 14 is also used to display the first temperature, the second temperature, the switch state of the control valve 103, the operating time and other information. The human-machine interaction device 14 can also receive instruction information sent by the detection personnel. For example, the human-machine interaction device 14 is used to receive a start instruction and send the start instruction to the control device 11. The human-machine interaction device 14 is also used to receive a control instruction and send the control instruction to the control device 11, and the control device 11 controls the control valve 103 corresponding to the control instruction so that the control valve 103 corresponding to the control instruction is turned on or off. The human-machine interaction device 14 can also obtain and display the preset start-up temperature and preset shutdown temperature input by the detection personnel. Among them, the human-machine interaction device 14 includes a touch screen.

[0082] Furthermore, the test water heater 20 is an air energy water heater.

[0083] Figure 3 This is a flow chart provided by an embodiment of the water heater detection device of the present invention. Figure 3 As shown, in a specific implementation manner, the working process of the water heater detection device is as follows:

[0084] S30, starting to work after receiving the start command;

[0085] S31, the control device 11 opens the thermostatic outlet valve 1031, the thermostatic inlet valve 1032, the test outlet valve 1033 and the test inlet valve 1034, the test water heater 20 starts to fill with water, and the first temperature and the preset start-up temperature (15° C.) are displayed on the touch screen;

[0086] S32, when the first temperature detected by the temperature sensing device 21 reaches 15°C, stop injecting water into the test water heater 20, and close the test outlet valve 1033 and the test inlet valve 1034;

[0087] S33, start the circulation power component 104 to start circulating water, and determine whether the second temperature reaches 15°C±0.5°C through the temperature detector 102. If the second temperature does not reach 15°C±0.5°C, repeat S31 to continue to feed water;

[0088] S34, if the second temperature reaches 15°C ± 0.5°C, the heating component 22 is powered on to start the heating test, and the test outlet valve 1033 and the test inlet valve 1034 are closed;

[0089] S35, when the first temperature detected by the temperature sensing device 21 reaches the preset shutdown temperature (55°C), the power is cut off and the machine is shut down;

[0090] S36, open the test outlet valve 1033, the test inlet valve 1034 and the circulation power assembly 104 to start circulating water, and determine whether the second temperature reaches 55°C±0.5°C through the temperature detector 102. If the second temperature does not reach 55°C±0.5°C, repeat S31, continue to feed water, and perform a calibration test;

[0091] S37. If the second temperature reaches 55°C ± 0.5°C, the test is completed;

[0092] S38, the drain valve 13 and the circulation power assembly 104 work together to drain the water.

[0093] The water heater detection device of this embodiment can ensure that the process of injecting the test medium into the test water heater 20 by the thermostat 12 is controllable by setting the control device 11 and the supply pipe 100 and the control valve 103 in the circulation device 10. The circulation pipe 101, the temperature detector 102 and the control valve 103 in the circulation device 10 can realize the precise control and detection of the test medium temperature before and after the test. By comparing the first temperature obtained by the temperature sensing device 21 in the test water heater 20 with the second temperature obtained by the temperature detector 102 in the circulation pipe 101, it is determined whether the test is completed according to the comparison result. The technical solution of this embodiment does not require manual control of each link in the test process, and there is no error caused by manual opening and closing of the control valve and manual measurement of temperature, which effectively improves the reliability of the water heater detection result and saves time and resources.

[0094] Figure 4 FIG. 1 is a circuit diagram of an embodiment of a water heater detection system of the present invention. Figure 4 As shown, this embodiment also provides a water heater detection system. The water heater detection system includes a computing device 41 and the water heater detection device 42 described in the above embodiment. The computing device 41 is connected to the water heater detection device 42.

[0095] In a specific embodiment, the computing device 41 is a processor with a preset software formula burned into it.

[0096] Specifically, the computing device 41 is used to obtain the test parameters generated during the test from the water heater detection device 42, such as the first temperature at a preset time, the second temperature at a preset time, the preset startup temperature, the preset shutdown temperature, and the time when the first temperature reaches the preset startup temperature, the time when the first temperature reaches the preset shutdown temperature, etc. The computing device 41 substitutes the test parameters into the preset software formula for calculation, and then uses the result output by the software formula as the test result.

[0097] It should be noted that determining the performance of a water heater based on parameters generated during the water heater test process is a very mature prior art in the field, so the software formula and the test parameters that need to be substituted can refer to the prior art, and this embodiment does not limit it.

[0098] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0099] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0100] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0101] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A water heater detection device, characterized in that: include: Circulation device, control device and constant temperature device storing the test medium; The circulation device comprises a supply pipeline, a circulation pipeline, a temperature detector and a plurality of control valves; wherein the control valves are arranged on both the supply pipeline and the circulation pipeline, and the temperature detector is also arranged on the circulation pipeline; All the control valves are connected to the control device, and the control device is used to control the control valves on the supply pipeline to be in an open state after receiving a start instruction, so that the thermostat and the test water heater are connected, and the thermostat injects the test medium into the test water heater; The control device is also used to be connected to the temperature sensing device of the test water heater, and the control device obtains the first temperature detected by the temperature sensing device. If the first temperature reaches the preset startup temperature, the control valve on the circulation pipeline is controlled to be in an open state, so that the test medium circulates in the test water heater and the circulation pipeline; The temperature detector is used to detect a second temperature in the circulation pipeline; The control device is connected to the temperature detector, and is also used to be connected to the heating component of the test water heater; the control device is also used to control all the control valves to close and control the heating component to start heating if it is detected that the second temperature reaches the standard variation range of the preset start-up temperature; When the control device detects that the first temperature reaches the preset shutdown temperature, the heating component is controlled to shut down, and the control valve on the circulation pipeline is controlled to be in an open state, so that the test medium circulates in the test water heater and the circulation pipeline to obtain the second temperature; if the second temperature is within the standard variation range of the preset shutdown temperature, it indicates that the test is completed; The control device is also connected to an external computing device, and the control device is used to send the test parameters generated during the test to the computing device, so that the computing device determines the test results according to the test parameters; If the control device detects that the second temperature is outside the standard variation range of the preset start-up temperature, it controls the control valve in the supply pipe to open, continues to inject the test medium into the test water heater, and re-detects whether the second temperature reaches the standard variation range of the preset start-up temperature. If the second temperature is still outside the standard variation range of the preset start-up temperature after repeating the operation for a preset number of times, the test water heater fails.

2. The water heater detection device according to claim 1, characterized in that: The control valves include a thermostatic outlet valve, a thermostatic inlet valve, a test outlet valve and a test inlet valve; The supply pipeline includes a first pipeline and a second pipeline; The first pipeline is used to connect the outlet of the thermostatic device and the inlet of the test water heater, and the thermostatic outlet valve and the test inlet valve are arranged on the first pipeline; wherein the thermostatic outlet valve is arranged at the outlet of the thermostatic device, and the test inlet valve is arranged at the inlet of the test water heater; The second pipeline is used to connect the inlet of the thermostatic device and the outlet of the test water heater, and the thermostatic inlet valve and the test outlet valve are arranged on the second pipeline; wherein the thermostatic inlet valve is arranged at the inlet of the thermostatic device, and the test outlet valve is arranged at the outlet of the test water heater.

3. The water heater detection device according to claim 2, characterized in that: The first pipeline is provided with a first interface, and the second pipeline is provided with a second interface; wherein the first interface is located between the constant temperature outlet valve and the test inlet valve, and the second interface is located between the constant temperature inlet valve and the test outlet valve; The first interface and the second interface are connected via a third pipeline; The circulation pipeline includes the third pipeline, a first pipeline between the inlet of the test water heater and the first interface, and a second pipeline between the outlet of the test water heater and the second interface.

4. The water heater detection device according to claim 3, characterized in that: Also includes a drain valve; At least one target pipeline among the first pipeline, the second pipeline and the third pipeline is provided with a drainage interface; The drainage valve is arranged at the drainage interface; The drain valve is connected to the control device, and the control device is used to control the drain valve, the test outlet valve and the test inlet valve to open after the test is completed, so as to discharge the test medium.

5. The water heater detection device according to claim 4, characterized in that: The thermostatic outlet valve, the thermostatic inlet valve, the test outlet valve, the test inlet valve and the drain valve are all solenoid valves.

6. The water heater detection device according to claim 4, characterized in that: The third pipeline is the target pipeline.

7. The water heater detection device according to claim 4, characterized in that: The circulation device also includes a circulation power component; The circulating power component is arranged on the circulating pipeline; The circulation power component is also connected to the control device, and is used to work under the control of the control device to circulate the test medium in the test water heater and the circulation pipeline, or to discharge the test medium from the drainage interface.

8. The water heater detection device according to claim 7, characterized in that: The circulating power component is arranged on the third pipeline.

9. The water heater detection device according to claim 7, characterized in that: The circulating power component comprises a circulating water pump.

10. The water heater detection device according to claim 1, characterized in that: It also includes a human-computer interaction device; The human-computer interaction device is connected to the control device; The human-machine interaction device is used to receive the start instruction and / or the control instruction of the control valve, and send the start instruction and / or the control instruction to the control device, so that the control device starts detection according to the start instruction, and / or changes the corresponding switch state of the control valve according to the control instruction; The human-computer interaction device is also used to display the first temperature, the second temperature, and to obtain and display the preset startup temperature and the preset shutdown temperature input by the inspection personnel.

11. The water heater detection device according to claim 10, characterized in that: The human-computer interaction device comprises a touchable display screen.

12. The water heater detection device according to claim 1, characterized in that: The temperature detector includes a platinum resistance temperature detection head.

13. The water heater detection device according to claim 1, characterized in that: The test medium includes water; The constant temperature device comprises a constant temperature water tank.

14. The water heater detection device according to any one of claims 1 to 13, characterized in that: The test water heater is an air energy water heater.

15. A water heater detection system, characterized in that: A detection device comprising a computing device and a water heater according to any one of claims 1 to 14; The computing device is connected to the detection device of the water heater; The computing device is used to obtain test parameters generated during the test from the detection device of the water heater, and determine the test results according to the test parameters.

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