Durability detection device for zero cold water function of gas instantaneous water heater

Abstract

The utility model provides a zero-cold-water function durability detection device for a gas instantaneous water heater, which relates to the technical field of gas instantaneous water heater detection, and comprises the following steps: connecting a gas instantaneous water heater to be detected to the device, adjusting a plate heat exchanger, an electromagnetic water valve and a one-way valve through a controller, and simulating the running state of the zero-cold-water function in actual use. The device monitors the combustion state of the water heater through the exhaust gas temperature sensor, and intelligently controls the cooling and heating process of circulating water in combination with data of the water temperature sensor, so that automatic cooling of hot water in the water return pipeline is realized. The gas rapid water heater testing device can adapt to detection of gas rapid water heaters of various models, has the functions of automatically recording and displaying testing results, reduces consumption of cooling water through an energy-saving design, shortens testing time, and ensures durability and reliability of products under different using conditions. The device is simple in structure and convenient to use, and the testing efficiency and the product quality of the gas instantaneous water heater are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gas fast water heater detection, especially a gas fast water heater zero cold water function endurance detection device. BACKGROUND

[0002] With the continuous progress of technology, modern gas fast water heaters have increasingly rich functions, especially zero cold water water heaters, which gradually become the mainstream product in the market due to their instant heating characteristics. Compared with traditional gas water heaters, zero cold water water heaters can significantly shorten the waiting time for hot water when in use, and users can immediately use hot water without waiting for a long time for cold water to flow out. This not only improves the user experience, but also significantly saves water resources, thus having important significance in environmental protection and energy saving.

[0003] The realization of the zero cold water function relies on the coordinated work of multiple key components, including the water heater controller, the circulating water pump, the temperature sensor, etc. The water heater controller monitors and adjusts the running state of these components in real time to ensure that hot water can flow to the user end in a short time. During the development and production of the water heater, the effectiveness test of this function is particularly important to ensure that the product can reliably operate under various working conditions.

[0004] However, the current market testing of the zero cold water function of the gas fast water heater is mostly limited to functional testing, mainly verifying its instant heating capability. In this case, the focus of the test is usually to check whether the system can quickly supply hot water, but there is a lack of systematic testing means and equipment for the durability and reliability of the product in long-term use, especially under different use conditions. This deficiency may lead to the life and performance of the product in actual use not being fully verified, thereby affecting the user experience and product reputation.

[0005] Therefore, in the research and development and manufacturing of the gas fast water heater, there is an urgent need for a device that can fully simulate the operating state of the zero cold water function and can test the durability and reliability under different conditions. Such a device not only needs to be able to automatically record and display test results, but also should have automatic compatible conversion capability for multiple models and varieties to adapt to different types of gas fast water heaters on the market. At the same time, the testing process should be as energy-saving and time-saving as possible to ensure the intuitiveness of the test results and the consistency of the product. UTILITY MODEL CONTENT

[0006] In order to solve the technical problems in the prior art, the utility model provides a gas fast water heater zero cold water function endurance detection device.

[0007] The technical scheme provided by the utility model is as follows:

[0008] The utility model provides a kind of gas fast water heater zero cold water function endurance detection device, comprising:

[0009] Controller, backwater valve one, backwater valve two, check valve, water inlet valve, gas valve, outlet pipeline valve one, outlet pipeline valve two, cooling water inlet valve, solenoid water valve, plate heat exchanger and exhaust temperature sensor;

[0010] The controller is electrically connected with the exhaust temperature sensor and the solenoid water valve, and the controller is used for receiving signals from the exhaust temperature sensor and controlling the opening and closing of the solenoid water valve.

[0011] The backwater valve one is connected with the backwater interface of the water heater, and the backwater valve two is connected with the backwater pipeline, for controlling the flow direction of water in the backwater pipeline.

[0012] The inlet of the check valve is connected with the backwater pipeline, and the outlet is connected with the water inlet pipeline, to prevent water flow from flowing backward.

[0013] The water inlet valve is arranged in the water inlet pipeline, for controlling cold water to enter the water heater.

[0014] The gas valve is arranged in the gas pipeline, for controlling the supply of gas.

[0015] The outlet pipeline valve one and the outlet pipeline valve two are arranged in the outlet pipeline respectively, for controlling the flow of hot water output.

[0016] The cooling water inlet valve is connected to the cooling water inlet of the plate heat exchanger, for controlling cooling water to enter the plate heat exchanger.

[0017] The plate heat exchanger is used for heat exchange and temperature reduction of high-temperature water in the backwater pipeline through the flow of cooling water.

[0018] Preferably, the check valve is arranged in the backwater pipeline, the inlet of the check valve is connected with the backwater valve one, and the outlet is connected with the water inlet pipeline, for controlling the backwater direction and preventing water flow from flowing backward.

[0019] Preferably, the cooling water inlet of the plate heat exchanger is connected with the outlet of the solenoid water valve through a pipeline, the inlet of the solenoid water valve is connected to a cooling water source, and the cooling water outlet of the plate heat exchanger is connected to a drain pipeline.

[0020] Preferably, the exhaust temperature sensor is arranged at the exhaust port of the water heater, for detecting the exhaust gas temperature when the water heater is burning, and transmitting the detected temperature signal to the controller.

[0021] Preferably, the controller is connected to the exhaust temperature sensor and the electromagnetic water valve through electrical connection, and the controller controls the opening and closing of the electromagnetic water valve according to the temperature signal obtained by the exhaust temperature sensor.

[0022] Preferably, the water inlet valve, the water outlet pipeline valve one and the water outlet pipeline valve two are respectively connected to the corresponding interfaces of the water heater through pipelines, and are provided with temperature sensors for detecting the temperature information at the interfaces and transmitting the temperature information to the controller.

[0023] Preferably, the cooling water inlet valve is connected to the cooling water pipeline to control the inflow of cooling water, and the high-temperature return water is cooled through the plate heat exchanger.

[0024] Preferably, the shower valve is connected to the water outlet pipeline to control the outflow of hot water from the shower, and the faucet valve is connected to the other end of the water outlet pipeline to control the outflow of hot water from the faucet.

[0025] Preferably, the gas valve is connected to the water heater through a gas pipeline to control the opening and closing of the gas supply.

[0026] Preferably, the return valve one and the return valve two are respectively arranged at different positions of the return water pipeline to control the flow path of the return water and realize effective circulation of the return water in the system.

[0027] The technical scheme provided by the utility model has at least the following beneficial effects:

[0028] (1) In the utility model, the device has the function of automatic compatible conversion, can adapt to different models and varieties of gas rapid water heaters on the market, realize diversified testing requirements, which not only improves the testing efficiency, but also simplifies the testing process, so that the same device can meet the testing requirements of different products, saves the equipment investment and time cost of enterprises;

[0029] (2) In the utility model, through the optimization of control logic and accurate temperature sensor, the device can intelligently identify the working state of the water heater, automatically control the opening and closing time of the cooling water, reduce the consumption of the cooling water, and at the same time ensure the accuracy and efficiency of the test, this design not only reduces the energy consumption, but also greatly shortens the test time, improves the overall performance of the detection device;

[0030] (3) In the utility model, the device is provided with the function of automatically recording and displaying test results, and users can real-time view various data and results in the testing process, this function makes the testing process more transparent and controllable, helps to find and solve potential problems of products in the zero cold water function, and ensures the consistency and reliability of the final product. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0032] Figure 1 A principle schematic view of a gas rapid water heater zero cold water function durability detection device provided by the embodiments of the present application is shown in the drawings.

[0033] Figure 2 A structure schematic view of a gas rapid water heater zero cold water function durability detection device provided by the embodiments of the present application is shown in the drawings.

[0034] In the drawings: 11, shower valve; 12, water return valve one; 13, water return valve two; 14, check valve; 15, water inlet valve; 16, gas valve; 17, water outlet pipeline valve one; 18, water outlet pipeline valve two; 19, cooling water inlet valve; 21, faucet valve; 22, electromagnetic water valve; 23, plate heat exchanger; 24, exhaust gas temperature sensor. DETAILED DESCRIPTION

[0035] The technical scheme in the present application will be described in combination with the drawings.

[0036] In the embodiments of the present application, the words such as "example", "for example" are used to represent an example, illustration or explanation. Any embodiment or design scheme described as "example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the word "example" is intended to present the concept in a specific way. In addition, in the embodiments of the present application, the meaning expressed by "and / or" can be both, or can be one of the two.

[0037] In order to make the technical problems, technical schemes and advantages to be solved by the present application more clear, the following will be described in detail in combination with the drawings and specific embodiments.

[0038] Reference is made to the drawings Figure 1 A principle schematic view of a gas rapid water heater zero cold water function durability detection device provided by the embodiments of the present application is shown in the drawings.

[0039] The embodiments of the present application provide a gas rapid water heater zero cold water function durability detection device, which comprises:

[0040] The controller, the backwater valve 12, the backwater valve 13, the check valve 14, the water inlet valve 15, the gas valve 16, the water outlet pipeline valve 17, the water outlet pipeline valve 18, the cooling water inlet valve 19, the electromagnetic water valve 22, the plate heat exchanger 23 and the exhaust gas temperature sensor 24;

[0041] The controller is electrically connected with the exhaust gas temperature sensor 24 and the electromagnetic water valve 22, and is used for receiving a signal from the exhaust gas temperature sensor 24 and controlling opening and closing of the electromagnetic water valve 22;

[0042] The backwater valve 12 is connected with a backwater interface of the water heater, and the backwater valve 13 is connected with a backwater pipeline, and is used for controlling water flow direction in the backwater pipeline;

[0043] The check valve 14 is connected with the backwater pipeline at an inlet, and is connected with the water inlet pipeline at an outlet, and is used for preventing water flow from flowing back;

[0044] The water inlet valve 15 is arranged in the water inlet pipeline, and is used for controlling cold water to enter the water heater;

[0045] The gas valve 16 is arranged in a gas pipeline, and is used for controlling gas supply;

[0046] The water outlet pipeline valve 17 and the water outlet pipeline valve 18 are arranged in the water outlet pipeline respectively, and are used for controlling water outlet flow;

[0047] The cooling water inlet valve 19 is connected to a cooling water inlet of the plate heat exchanger 23, and is used for controlling cooling water to enter the plate heat exchanger 23;

[0048] The plate heat exchanger 23 is used for heat exchange and temperature reduction of high-temperature water in the backwater pipeline through cooling water flow.

[0049] The check valve 14 is arranged in the backwater pipeline, and the check valve 14 is connected with the backwater valve 12 at an inlet, and is connected with the water inlet pipeline at an outlet, and is used for controlling backwater direction and preventing water flow from flowing back.

[0050] A cooling water inlet of the plate heat exchanger 23 is connected with an outlet of the electromagnetic water valve 22 through a pipeline, an inlet of the electromagnetic water valve 22 is connected to a cooling water source, and a cooling water outlet of the plate heat exchanger 23 is connected to a drain pipeline.

[0051] The exhaust gas temperature sensor 24 is arranged at an exhaust port of the water heater, and is used for detecting exhaust gas temperature when the water heater is burning, and transmitting a detected temperature signal to the controller.

[0052] The controller is electrically connected with the exhaust gas temperature sensor 24 and the electromagnetic water valve 22, and the controller controls opening and closing of the electromagnetic water valve 22 according to a temperature signal acquired by the exhaust gas temperature sensor 24.

[0053] The water inlet valve 15, the water outlet pipeline valve one 17 and the water outlet pipeline valve two 18 are connected with the corresponding interfaces of the water heater through pipelines respectively, and are provided with temperature sensors for detecting temperature information at the interfaces and transmitting the temperature information to the controller.

[0054] The cooling water inlet valve 19 is connected with a cooling water pipeline, controls the inflow of cooling water, and cools the high-temperature backwater through the plate heat exchanger 23.

[0055] The shower valve 11 is connected with a water outlet pipeline, and is used for controlling the outflow of hot water from the shower; and the faucet valve 21 is connected with the other end of the water outlet pipeline, and is used for controlling the outflow of hot water from the faucet.

[0056] The gas valve 16 is connected with the water heater through a gas pipeline, and is used for controlling the opening and closing of gas supply.

[0057] The backwater valve one 12 and the backwater valve two 13 are arranged at different positions of the backwater pipeline respectively, and are used for controlling the flow path of backwater, so as to realize the effective circulation of backwater in the system.

[0058] Referring to the accompanying drawings Figure 2 , a method flow process schematic diagram of a kind of gas rapid water heater zero cold water function durability detection device provided by the utility model embodiment is shown

[0059] The utility model embodiment further provides a kind of gas rapid water heater zero cold water function durability detection method, for implementing gas rapid water heater zero cold water function durability detection device in the above embodiment, and the method flow is as follows:

[0060] Preparation stage:

[0061] The measured water heater is installed on the detection device; all valves (water inlet valve, water outlet pipeline valve, backwater valve, cooling water inlet valve) except gas valve are opened, to exclude air in pipeline.

[0062] Start zero cold water function:

[0063] User starts the zero cold water function of water heater, and water heater starts to circulate heating water flow through backwater pipeline.

[0064] Temperature detection and record:

[0065] Controller starts to collect temperature data of water outlet interface, backwater interface and smoke outlet, and records the start number of zero cold water function.

[0066] Intelligent identification and control:

[0067] The controller intelligently identifies the state of the water heater's combustion work and stop according to the collected temperature data; when it detects that the water heater is working, the controller opens the electromagnetic water valve through the signal provided by the exhaust gas temperature sensor, allowing cooling water to enter the plate heat exchanger.

[0068] Water cooling:

[0069] The cooling water exchanges heat with the high-temperature water in the return water pipeline through the plate heat exchanger, thereby reducing the temperature of the water in the return water pipeline; the controller automatically adjusts the opening and closing time of the electromagnetic water valve through control logic and time relays according to the change of the pipeline water temperature, to optimize the cooling effect and reduce the consumption of cooling water.

[0070] Circulating heating and stopping:

[0071] The water heater automatically starts and stops circulating combustion heating by comparing the machine water inlet temperature, water outlet temperature and set temperature; when the water outlet temperature reaches the set value, the water heater stops heating; when the temperature drops, the water heater starts heating again.

[0072] Durability and reliability test:

[0073] The above process is repeated to simulate the zero-cold water function operation state of the water heater in actual use; the controller automatically records various data during the test process, including temperature, heating time, cooling time, etc., for subsequent analysis and evaluation of the durability and reliability of the water heater.

[0074] Test completion and result display:

[0075] When the predetermined test time is reached or the preset number of tests is completed, the test is completed; the controller displays the test results in an intuitive way, including test times, temperature curves, heating efficiency, etc., so that users or testers can evaluate the performance of the water heater.

[0076] Automatic compatible conversion:

[0077] The detection device has the function of automatic compatible conversion of multiple varieties and models, which can adapt to different models and specifications of gas rapid water heaters for testing.

[0078] Through the above steps, the detection device can comprehensively and accurately simulate the running state of the zero-cold water function of the gas rapid water heater and perform durability and reliability tests, providing strong support for the development and production of water heaters.

[0079] Control action logic:

[0080] 1) The user starts the zero-cold water function, and the water heater circulates the water flow through the return water pipeline;

[0081] 2) The controller collects the temperature of the water outlet interface, the backwater interface and the smoke outlet, and records the number of zero cold water starts;

[0082] 3) The controller starts the time relay to control the opening and closing of the electromagnetic water valve;

[0083] 4) The circulating hot water and the cooling water exchange heat in the plate heat exchanger, realizing the cooling of the water inlet of the water heater;

[0084] 5) The water heater starts and stops the circulating combustion heating by comparing the machine water inlet temperature, the water outlet temperature and the set temperature.

[0085] The technical scheme provided by the embodiment of the utility model brings at least the following beneficial effects:

[0086] (1) In the utility model, the device has the function of automatic compatible conversion, can adapt to different models and varieties of gas rapid water heaters on the market, realize diversified testing requirements, which not only improves the testing efficiency, but also simplifies the testing process, so that the same device can meet the testing requirements of different products, saves the equipment investment and time cost of enterprises;

[0087] (2) In the utility model, through the optimization of control logic and accurate temperature sensor, the device can intelligently identify the working state of the water heater, automatically control the opening and closing time of the cooling water, reduce the consumption of the cooling water, and at the same time ensure the accuracy and efficiency of the test, this design not only reduces the energy consumption, but also greatly shortens the test time, improves the overall performance of the detection device;

[0088] (3) In the utility model, the device is equipped with the function of automatically recording and displaying test results, users can real-time view various data and results in the testing process, this function makes the testing process more transparent and controllable, helps to find and solve potential problems of products in zero cold water function, ensures the consistency and reliability of the final product.

[0089] The above content is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

[0090] The following points need to be explained:

[0091] (1) The embodiment of the utility model only relates to the structure involved in the embodiment of the utility model, and other structures can refer to the usual design.

[0092] (2) For the sake of clarity, the thickness of layers or regions is exaggerated or reduced in the drawings used to describe embodiments of the present application, i.e. the drawings are not drawn to scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, it can be "directly" on or under the other element or intervening elements can also be present.

[0093] (3) In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined to obtain new embodiments.

[0094] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A kind of gas quick water heater zero cold water function endurance detection device, it is characterized in that, The device comprises a controller, a backwater valve I (12), a backwater valve II (13), a one-way valve (14), a water inlet valve (15), a gas valve (16), an outlet pipeline valve I (17), an outlet pipeline valve II (18), a cooling water inlet valve (19), an electromagnetic water valve (22), a plate heat exchanger (23), and a flue gas temperature sensor (24). The controller is electrically connected with the flue gas temperature sensor (24) and the electromagnetic water valve (22), and is configured to receive a signal from the flue gas temperature sensor (24) and control the opening and closing of the electromagnetic water valve (22). The backwater valve I (12) is connected with a backwater interface of the water heater, and the backwater valve II (13) is connected with a backwater pipeline and configured to control the water flow direction in the backwater pipeline. The inlet of the one-way valve (14) is connected with the backwater pipeline, and the outlet is connected with the water inlet pipeline, so as to prevent the water flow from flowing backward. The water inlet valve (15) is arranged in the water inlet pipeline and configured to control the cold water entering the water heater. The gas valve (16) is arranged in the gas pipeline and configured to control the supply of gas. The outlet pipeline valve I (17) and the outlet pipeline valve II (18) are arranged in the outlet pipeline respectively and configured to control the flow of hot water output. The cooling water inlet valve (19) is connected to the cooling water inlet of the plate heat exchanger (23) and configured to control the cooling water entering the plate heat exchanger (23). The plate heat exchanger (23) is configured to exchange heat and reduce the temperature of the high-temperature water in the backwater pipeline through the flow of cooling water.

2. The device according to claim 1, wherein the one-way valve (14) is arranged in the backwater pipeline, the inlet of the one-way valve (14) is connected with the backwater valve I (12), and the outlet is connected with the water inlet pipeline, so as to control the backwater direction and prevent the water flow from flowing backward.

3. The device according to claim 1, wherein the cooling water inlet of the plate heat exchanger (23) is connected with the outlet of the electromagnetic water valve (22) through a pipeline, the inlet of the electromagnetic water valve (22) is connected with a cooling water source, and the cooling water outlet of the plate heat exchanger (23) is connected with a drainage pipeline.

4. The device according to claim 1, wherein the flue gas temperature sensor (24) is arranged at the flue gas outlet of the water heater and configured to detect the flue gas temperature when the water heater is burning and transmit the detected temperature signal to the controller.

5. The device according to claim 1, wherein the controller is connected with the flue gas temperature sensor (24) and the electromagnetic water valve (22) through electrical connection, and the controller controls the opening and closing of the electromagnetic water valve (22) according to the temperature signal obtained by the flue gas temperature sensor (24).

6. The device according to claim 1, ​ ​ ​ ​ ​ The water inlet valve (15), the water outlet pipeline valve one (17) and the water outlet pipeline valve two (18) are respectively connected with the corresponding interfaces of the water heater through pipelines and are provided with temperature sensors for detecting the temperature information at the interfaces and transmitting the information to the controller.

7. The zero-cold water function durability detection device for a gas rapid water heater according to claim 1, characterized in that: The cooling water inlet valve (19) is connected with a cooling water pipeline to control the inflow of cooling water and to cool the high-temperature return water through the plate heat exchanger (23).

8. The zero-cold water function durability detection device for a gas rapid water heater according to claim 1, characterized in that: The shower valve (11) is connected with the water outlet pipeline to control the outflow of hot water from the shower, and the faucet valve (21) is connected with the other end of the water outlet pipeline to control the outflow of hot water from the faucet.

9. The gas rapid water heater zero-cold-water function durability detection device according to claim 1, characterized in that: The gas valve (16) is connected with the water heater through a gas pipeline to control the opening and closing of the gas supply.

10. The gas rapid water heater zero-cold-water function durability detection device according to claim 1, characterized in that: The return water valve one (12) and the return water valve two (13) are respectively arranged at different positions of the return water pipeline to control the flow path of the return water and realize the effective circulation of the return water in the system.

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