Gas water heater with functions of gas leakage alarm and double gas cut-off

Abstract

A gas water heater with gas leakage alarm and double gas cut-off functions comprises a water heater body, a control panel and a linkage cut-off valve, the linkage cut-off valve is arranged on a gas inlet pipeline of the water heater body, a controller and a gas passage communicated with the gas inlet pipeline are arranged in the water heater body, a solenoid valve is arranged on the gas passage, and the solenoid valve is connected with the controller. An alarm used for detecting gas leakage is arranged on the water heater body, the control panel is electrically connected with the controller, the alarm and the linkage stop valve, and the controller is electrically connected with the electromagnetic valve. By arranging the control panel and the linkage stop valve, when the alarm detects gas leakage, a signal is sent to the control panel, the control panel sends a signal to the controller, and the controller closes the electromagnetic valve in the water heater body so as to cut off the gas in the water heater body; and meanwhile, the control panel sends a valve closing signal to the linkage stop valve, so that the linkage stop valve is closed, gas of the gas inlet pipeline outside the water heater body is cut off, and the purpose of preventing indoor gas leakage is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas water heater technology, and in particular to a gas water heater with a gas leak alarm and dual gas shut-off function. Background Technology

[0002] Existing gas water heaters with gas leak alarms send a leak signal to the control system when the alarm detects a gas leak. The control system then closes the solenoid valve on the gas passage of the water heater to stop the internal gas leak. However, this solution is only effective in protecting against leaks inside the machine, but it cannot effectively protect against leaks outside the machine (such as gas pipe joints).

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to provide a gas water heater with a gas leak alarm and dual gas shut-off function that is simple in structure, provides comprehensive protection, effectively prevents indoor gas leaks, provides a good user experience, and is highly practical, so as to overcome the shortcomings of the prior art.

[0005] A gas water heater with dual gas shut-off function and gas leak alarm designed for this purpose includes a water heater body, characterized in that: it also includes a control panel and a linkage shut-off valve. The linkage shut-off valve is installed on the gas inlet pipe of the water heater body. The water heater body is provided with a controller and a gas passage connected to the gas inlet pipe. A solenoid valve is installed on the gas passage. An alarm for detecting gas leaks is installed on the water heater body. The control panel is electrically connected to the controller, the alarm and the linkage shut-off valve respectively. The controller is electrically connected to the solenoid valve. When the alarm detects a gas leak, it sends a signal to the control panel.

[0006] The control panel is equipped with a display screen for showing fault codes and a buzzer for emitting alarm sounds.

[0007] The panel and the linkage shut-off valve are connected by wire or wireless means, and the linkage shut-off valve is either a wired shut-off valve or a wirelessly controlled shut-off valve.

[0008] The alarm is equipped with a gas-sensitive sensor for detecting gas concentration.

[0009] The alarm is installed on the side of the water heater body, and the detection end of the alarm is located outside the water heater body.

[0010] The water heater body contains a proportional valve and a burner. The gas passage is connected to the burner, the proportional valve is located on the gas passage, and the controller is electrically connected to the proportional valve.

[0011] The gas inlet pipeline includes the main gas pipeline and the water heater inlet pipeline. The main gas pipeline, the water heater inlet pipeline and the gas passage are connected in sequence, and the linkage shut-off valve is installed on the main gas pipeline.

[0012] The control panel is located at the front of the water heater body. The control panel is equipped with a first terminal for connecting the alarm, a second terminal for connecting the controller, and a third terminal for connecting the linkage shut-off valve or a wireless radio frequency chip.

[0013] The water heater body contains an inlet pipe, a heat exchanger, and an outlet pipe connected in sequence, with the heat exchanger located above the burner.

[0014] A water flow sensor is installed on the inlet pipe, and a thermostat and a temperature sensor are installed on the outlet pipe. The controller is electrically connected to the water flow sensor, the thermostat, and the temperature sensor respectively.

[0015] This utility model of a gas water heater incorporates a control panel and a linkage shut-off valve. When the alarm detects a gas leak, it sends a signal to the control panel, which then sends a signal to the controller. The controller closes the solenoid valve inside the water heater to block the gas supply. Simultaneously, the control panel sends a valve-closing signal to the linkage shut-off valve, causing it to close and thus cutting off the gas supply to the external gas inlet pipe of the water heater. This prevents indoor gas leaks and protects the entire indoor space, resolving the issues of personal safety and property damage caused by indoor gas leaks. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a gas water heater in the first application example of an embodiment of this utility model.

[0017] Figure 2 This is a control principle diagram of a gas water heater in the first application example of an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the overall structure of a gas water heater in the second application example of an embodiment of this utility model.

[0019] Figure 4 This is a control principle diagram of a gas water heater in a second application example of an embodiment of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1-4This gas water heater with dual gas shut-off function and gas leak alarm includes a water heater body 1, a control panel 2, and a linkage shut-off valve 3. The linkage shut-off valve 3 is installed on the gas inlet pipe 4 of the water heater body 1 and is used to open or close the gas inlet pipe 4. The gas inlet pipe 4 and the linkage shut-off valve 3 are located outside the water heater body 1. Inside the water heater body 1, there is a controller 5 and a gas passage connected to the gas inlet pipe 4. A solenoid valve 6 is installed on the gas passage and is used to open or close the gas passage. An alarm 7 for detecting gas leaks is installed on the water heater body 1. The control panel 2 is electrically connected to the controller 5, the alarm 7, and the linkage shut-off valve 3. The controller 5 is electrically connected to the solenoid valve 6. When the alarm 7 detects a gas leak, it sends a signal to the control panel 2.

[0022] The control panel 2 is equipped with a display screen 8 for displaying fault codes and a buzzer for emitting alarm sounds. When the alarm 7 detects a gas leak and reaches the alarm threshold, it sends a signal to the control panel 2. The control panel 2 then sends a signal to the controller 5. If the gas water heater is in operation, the controller 5 first closes the solenoid valve 6 inside the water heater body 1 to block the gas inside the water heater body 1. It also displays a fault code and emits an alarm sound on the control panel 2 to remind the user. At the same time, the control panel 2 sends a valve-closing signal to the linkage shut-off valve 3, thereby cutting off the gas supply to the external gas inlet pipe 4 of the water heater body 1, thus preventing indoor gas leaks.

[0023] The panel 2 and the linkage shut-off valve 3 are connected by wire or wireless means, and the linkage shut-off valve 3 is either a wired shut-off valve or a wirelessly controlled shut-off valve. When the panel 2 and the linkage shut-off valve 3 are connected by wire, the control panel 2 is connected to the linkage shut-off valve 3 through the linkage valve closing signal line 9. When the panel 2 and the linkage shut-off valve 3 are connected by wireless means, the control panel 2 is connected to the linkage shut-off valve 3 through the wireless radio frequency chip 30.

[0024] Alarm 7 is equipped with a gas-sensitive sensor for detecting gas concentration, which detects gas leaks by detecting gas concentration; alarm 7 is an existing gas alarm.

[0025] The alarm 7 is installed on the side of the water heater body 1, and the detection end of the alarm 7 is located outside the water heater body 1.

[0026] The water heater body 1 is equipped with a proportional valve 10 and a burner 11. The gas passage is connected to the burner 11, the proportional valve 10 is installed on the gas passage, and the controller 5 is electrically connected to the proportional valve 10.

[0027] The gas inlet pipe 4 includes the main gas pipe 12 and the water heater inlet pipe 13. The main gas pipe 12, the water heater inlet pipe 13 and the gas passage are connected in sequence. The linkage shut-off valve 3 is installed on the main gas pipe 12. The main gas pipe 12 is the indoor gas pipe and is located at the entrance of the house. The main gas pipe 12 is connected to the household gas meter 22, and the household gas meter 22 is connected to the inlet gas pipe 23. The main gas pipe 12 can also be connected to other gas inlet pipes, such as the wall-hung boiler inlet pipe 24 and the gas stove inlet pipe 25.

[0028] The control panel 2 is located at the front of the water heater body 1. The control panel 2 is provided with a first terminal 14 for connecting the alarm 7, a second terminal 15 for connecting the controller 5, and a third terminal 31 or a wireless radio frequency chip 30 for connecting the linkage shut-off valve 3. The control panel 2 is equivalent to a human-machine interface. The linkage shut-off valve 3 is provided with a wireless radio frequency chip 30.

[0029] The bottom of the water heater body 1 is provided with an air inlet connector 26, and the water heater air inlet pipe 13, air inlet connector 26 and gas passage are connected in sequence.

[0030] The water heater body 1 is provided with an inlet pipe 16, a heat exchanger 17 and an outlet pipe 18 connected in sequence. The heat exchanger 17 is located above the burner 11. The bottom of the water heater body 1 is also provided with an inlet valve 27 and an outlet connector 28. The inlet pipe 16 is connected to the inlet valve 27 and the outlet pipe 18 is connected to the outlet connector 28.

[0031] A water flow sensor 19 is installed on the inlet pipe 16, and a thermostat 20 and a temperature sensor 21 are installed on the outlet pipe 18. The controller 5 is electrically connected to the water flow sensor 19, the thermostat 20, and the temperature sensor 21 respectively. The thermostat 20 is located near the heat exchanger 17, and the temperature sensor 21 is located near the outlet connector 28. The thermostat 20 is used for dry-burn protection, and the temperature sensor 21 is used to detect the outlet water temperature and to cooperate with the controller 5 to control the outlet water temperature. The working principle of the thermostat 20 and the temperature sensor 21 is existing technology and will not be described in detail here.

[0032] A fan assembly 29 is installed on the top of the water heater body 1.

[0033] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas water heater with dual gas shut-off function and gas leak alarm, comprising a water heater body (1), characterized in that: It also includes a control panel (2) and a linkage shut-off valve (3). The linkage shut-off valve (3) is installed on the gas inlet pipe (4) of the water heater body (1). The water heater body (1) is equipped with a controller (5) and a gas passage that connects to the gas inlet pipe (4). A solenoid valve (6) is installed on the gas passage. An alarm (7) for detecting gas leaks is installed on the water heater body (1). The control panel (2) is electrically connected to the controller (5), the alarm (7) and the linkage shut-off valve (3) respectively. The controller (5) is electrically connected to the solenoid valve (6). When the alarm (7) detects a gas leak, it sends a signal to the control panel (2).

2. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 1, characterized in that: The control panel (2) is equipped with a display screen (8) for displaying fault codes and a buzzer for emitting alarm sounds.

3. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 2, characterized in that: The control panel (2) and the linkage shut-off valve (3) are connected by wire or wireless means, and the linkage shut-off valve (3) is a wired shut-off valve or a wirelessly controlled shut-off valve.

4. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 1, characterized in that: The alarm (7) is equipped with a gas-sensitive sensor for detecting gas concentration.

5. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 4, characterized in that: The alarm (7) is installed on the side of the water heater body (1), and the detection end of the alarm (7) is located outside the water heater body (1).

6. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 1, characterized in that: The water heater body (1) is equipped with a proportional valve (10) and a burner (11). The gas passage is connected to the burner (11). The proportional valve (10) is located on the gas passage. The controller (5) is electrically connected to the proportional valve (10).

7. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 1, characterized in that: The gas inlet pipe (4) includes the gas main pipe (12) and the water heater inlet pipe (13). The gas main pipe (12), the water heater inlet pipe (13) and the gas passage are connected in sequence. The linkage shut-off valve (3) is installed on the gas main pipe (12).

8. The gas water heater with dual gas shut-off function and gas leak alarm as described in claim 3, characterized in that: The control panel (2) is located at the front of the water heater body (1). The control panel (2) is provided with a first terminal (14) for connecting the alarm (7), a second terminal (15) for connecting the controller (5), and a third terminal (31) or a wireless radio frequency chip (30) for connecting the linkage shut-off valve (3).

9. The gas water heater with gas leak alarm and dual gas shut-off function according to claim 6, characterized in that: The water heater body (1) is provided with an inlet pipe (16), a heat exchanger (17) and an outlet pipe (18) connected in sequence. The heat exchanger (17) is located above the burner (11).

10. The gas water heater with gas leak alarm and dual gas shut-off function according to claim 9, characterized in that: A water flow sensor (19) is installed on the water inlet pipe (16), and a thermostat (20) and a temperature sensor (21) are installed on the water outlet pipe (18). The controller (5) is electrically connected to the water flow sensor (19), the thermostat (20) and the temperature sensor (21) respectively.

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