Gas heating water heater capable of automatically handling gas leakage

Abstract

The application is suitable for the technical field of gas heating water heater, and provides a gas heating water heater capable of automatically processing gas leakage, which comprises a water heater body, a gas cut-off valve and an explosion-proof fan; the water heater body comprises a control panel, a gas leakage alarm, a water heater controller and a water heater electromagnetic valve; the water heater electromagnetic valve is arranged on an internal gas pipe, and the gas cut-off valve is arranged on an indoor gas pipe; the control panel is electrically connected with the gas leakage alarm, the controller and the explosion-proof fan respectively, and is wirelessly connected with the gas cut-off valve; the water heater controller is electrically connected with the water heater electromagnetic valve. The application controls the gas cut-off valve in a wireless mode through the control panel, can close the indoor gas pipe when gas leakage occurs, cuts off the gas from the source, and simultaneously closes the electromagnetic valve and the gas proportional valve in the gas heating water heater through the controller, so that the gas leakage of the water heater itself pipe and the gas leakage of the indoor pipe are effectively and comprehensively terminated.

Description

Technical Field

[0001] This application belongs to the technical field of gas-fired heating and hot water boilers, and particularly relates to a gas-fired heating and hot water boiler that can automatically handle gas leaks. Background Technology

[0002] Most existing gas-fired heating and hot water boilers are equipped with devices to handle gas leaks. These devices detect the concentration of gas in the surrounding environment and immediately shut off the solenoid valve inside the boiler if the concentration is too high. However, these boilers can only handle leaks caused by their own internal components. If a gas leak occurs in the boiler's internal piping, shutting off the solenoid valve can stop the leak. But if a leak occurs in the indoor gas piping, shutting off the solenoid valve will not stop the leak. This means that a leak in the indoor gas piping poses a significant safety hazard.

[0003] However, the controller inside the gas-fired heating and hot water boiler is also responsible for the boiler's own operation. If an additional control connection is added between the boiler controller and the external gas pipeline valve, it will further occupy the boiler controller's resources, increase costs, and excessive resource occupation will also lead to greater instability and control abnormalities. Utility Model Content

[0004] This application provides a gas-fired heating and hot water boiler that can automatically handle gas leaks, which can solve the problems of insufficient timeliness and comprehensiveness in handling gas leaks and the existence of safety hazards.

[0005] Based on this, the present invention adopts the following technical solution:

[0006] This application provides a gas-fired heating hot water boiler that can automatically handle gas leaks. It is installed indoors and includes a hot water boiler body, a gas shut-off valve, and an explosion-proof fan. The hot water boiler body includes a control panel, a gas leak alarm, a hot water boiler controller, and a hot water boiler solenoid valve.

[0007] The hot water boiler body is connected to the burner and the gas inlet through an internal gas pipe. The hot water boiler solenoid valve is installed on the internal gas pipe. The gas inlet is connected to one end of the gas inlet pipe of the gas heating hot water boiler. The other end of the gas inlet pipe of the gas heating hot water boiler is connected to the indoor gas pipe for introducing gas. The gas shut-off valve is installed on the indoor gas pipe.

[0008] The control panel is electrically connected to the gas leak alarm, the hot water boiler controller and the explosion-proof fan respectively, and the control panel is wirelessly connected to the gas shut-off valve;

[0009] The hot water boiler controller is electrically connected to the hot water boiler solenoid valve.

[0010] In one embodiment, the gas leak alarm is used to detect the gas concentration value in the room when the hot water heater body is in working or standby state, and to emit a gas leak alarm sound when the gas concentration value reaches the alarm threshold.

[0011] The gas leak alarm is also used to send an alarm signal to the control panel when the gas concentration value reaches the alarm threshold.

[0012] The control panel is used to send a valve-closing command to the gas shut-off valve after receiving the alarm signal, so as to close the gas shut-off valve.

[0013] In one embodiment, the control panel is further configured to send a shutdown command to the water heater controller after receiving the alarm signal;

[0014] The hot water heater controller is used to control the hot water heater solenoid valve to close after receiving the shutdown command.

[0015] In one embodiment, the control panel is further configured to send a start command to the explosion-proof fan after receiving the alarm signal, so as to operate the explosion-proof fan.

[0016] In one embodiment, the explosion-proof fan includes an exhaust explosion-proof fan and an air supply explosion-proof fan.

[0017] In one embodiment, the control panel is equipped with a wireless transmitting module, and the gas shut-off valve is equipped with a wireless receiving module;

[0018] The control panel and the gas shut-off valve are wirelessly connected to the wireless receiving module via the wireless transmitting module.

[0019] In one embodiment, the control panel is located on the front of the water heater body;

[0020] The gas leak alarm is located on the side of the hot water boiler body.

[0021] In one embodiment, the hot water heater controller is further configured to send fault code information to the control panel after receiving the shutdown command;

[0022] The control panel is also used to display the fault code information.

[0023] In one embodiment, the control panel is also configured to issue a fault alarm sound upon receiving the fault code information.

[0024] In one embodiment, the hot water boiler body further includes a gas proportional valve; the gas proportional valve is electrically connected to the hot water boiler controller;

[0025] The water heater controller is used to control the gas proportional valve to close after receiving the shutdown instruction.

[0026] The beneficial effects of the present utility model are as follows:

[0027] 1. This gas heating water heater controls the gas cut-off valve wirelessly through the control panel. When gas leakage occurs, it can close the indoor gas pipeline, cutting off the gas from the source. At the same time, the control panel sends a shutdown instruction to the water heater controller, so as to close the water heater solenoid valve and gas proportional valve inside the gas heating water heater through the water heater controller. On the basis of realizing the linkage control of the gas heating water heater and the gas cut-off valve, it does not occupy the resources of the water heater controller more. Whether the pipeline of the gas heating water heater itself leaks gas or the indoor pipeline leaks gas, it can effectively and comprehensively terminate.

[0028] 2. This gas heating water heater also controls the explosion-proof fan through the control panel in a linkage manner. When gas leakage occurs, the explosion-proof fan is started to quickly reduce the indoor gas concentration.

[0029] 3. Once the gas leakage alarm detects gas leakage, it will emit an alarm sound to notify the user that gas leakage has occurred. In addition, this gas heating water heater also displays fault code information and emits an alarm sound through the control panel, further feedback to the user that there is a potential gas leakage hazard in this gas heating water heater, avoiding misoperation by the user and ensuring the safety of gas use.

[0030] 4. This gas heating water heater turns on the gas leakage alarm in the working or standby state, effectively reducing the working loss of the gas leakage alarm and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a structural diagram of a gas heating water heater capable of automatically handling gas leakage provided by an embodiment of the present utility model;

[0033] Figure 2 It is a structural schematic diagram of a gas heating water heater capable of automatically handling gas leakage provided by an embodiment of the present utility model.

[0034] Legend Explanation:

[0035] 10. Hot water boiler body; 11. Gas leak alarm; 12. Control panel; 13. Hot water boiler controller; 14. Hot water boiler solenoid valve; 15. Gas shut-off valve; 16. Explosion-proof fan; 121. Wireless transmitter module; 151. Wireless receiver module; 161. Exhaust explosion-proof fan; 162. Supply explosion-proof fan; 17. Hot water boiler fan; 18. Air pressure switch; 19. Heat exchanger; 21. Thermostat; 22. Burner; 23. Gas inlet; 24. Internal gas pipe; 25. Gas proportional valve; 26. Water circuit components; 27. Circulating water pump; 28. Expansion tank; 29. ​​Gas inlet pipe of gas-fired heating hot water boiler; 31. Indoor gas pipe; 32. Gas meter; 33. Gas inlet pipe of other gas equipment; 34. Manual shut-off valve. Detailed Implementation

[0036] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0037] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0038] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0039] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] This embodiment provides a gas-fired heating and hot water boiler that can automatically handle gas leaks. This boiler is installed indoors and is a heating device that uses gas as fuel. Figure 1As shown, the gas-fired heating hot water boiler includes a boiler body 10, a gas shut-off valve 15, and an explosion-proof fan 16. The boiler body 10 includes a gas leak alarm 11, a control panel 12, a boiler controller 13, and a boiler solenoid valve 14. In this embodiment, the control panel 12 is electrically connected to the gas leak alarm 11, the boiler controller 13, and the explosion-proof fan 16, and is also wirelessly connected to the gas shut-off valve 15. Inside the boiler body 10, the boiler controller 13 is electrically connected to the boiler solenoid valve 14.

[0041] In one feasible solution, the side of the water heater body 10 facing the user is designated as the front, the control panel 12 is located on the front of the water heater body 10, and the gas leak alarm 11 is located on the side of the water heater body 10. Since gas has a relatively light molecular weight and easily diffuses upwards, the gas leak alarm 11 is positioned high on the side. Figure 2 As shown, its height is approximately the same as that of the hot water boiler fan 17.

[0042] In one feasible option, see Figure 2 The hot water heater body 10 is connected to the burner 22 and the gas inlet 23 via an internal gas pipe 24, and the hot water heater solenoid valve is located on the internal gas pipe 24. Figure 2 As shown, the air inlet 23 is connected to one end of the air inlet pipe 29 of the gas heating and hot water boiler, and the other end of the air inlet pipe 29 of the gas heating and hot water boiler is connected to the indoor gas pipe 31 used to introduce gas. The gas shut-off valve 15 is installed on the indoor gas pipe 31.

[0043] In this embodiment, a gas meter 32 is also installed on the indoor gas pipe 31, and the gas shut-off valve 15 is specifically installed on the indoor gas pipe 31 near the gas meter 31, making it more conspicuous.

[0044] In one feasible solution, the indoor gas pipe 31 is also connected to several other gas appliance inlet pipes 33, such as the gas stove inlet pipe and the gas water heater inlet pipe, etc. Manual shut-off valves 34 are installed on the gas heating water heater inlet pipe 29 and each of the other gas appliance inlet pipes 33 as a double insurance to manually shut off gas leaks.

[0045] In one optional embodiment, the gas leak alarm 11 is used to detect the gas concentration value in the room when the water heater body 10 is in working or standby mode, and to emit a gas leak warning sound when the gas concentration value reaches the alarm threshold. Specifically, the gas leak alarm 11 is equipped with a buzzer. When the gas concentration value is detected to reach the alarm threshold, the working circuit of the buzzer is activated, and the buzzer emits a buzzing alarm, thereby reminding the user that a gas leak has occurred.

[0046] In this embodiment, the hot water boiler body 10 being in working state means that the gas-fired heating hot water boiler is actively heating or providing hot water. At this time, the gas-fired heating hot water boiler transfers heat energy to the flowing water through gas combustion, raising its temperature to the set temperature and continuously supplying hot water. The hot water boiler body 10 being in standby state means that after completing the heating demand, it is waiting for the next start of heating. At this time, the gas-fired heating hot water boiler has no water demand.

[0047] In one optional implementation, the alarm threshold can be set according to the lower explosive limit of the gas used and the specific usage scenario. Typically, the alarm threshold is set to 10% of the lower explosive limit of the gas. As an example, when the gas is manufactured gas containing carbon monoxide and hydrogen, a separate threshold is set for the concentration of different combustible gases. For example, the concentration threshold for nitrogen monoxide is typically 50 PPM (parts per million), and the concentration threshold for hydrogen is typically 125 PPM. Of course, this embodiment can also set concentration thresholds for other gases in the manufactured gas, such as a hydrogen sulfide concentration threshold of 10 PPM and an ammonia concentration threshold of 5 PPM. When the concentration of any of these gases exceeds its corresponding concentration threshold, an alarm is immediately triggered.

[0048] In this embodiment, the gas leak alarm 11 is also used to send an alarm signal to the control panel 12 when the gas concentration value reaches the alarm threshold. After receiving the alarm signal, the control panel 12 is used to send a valve shut-off command to the gas shut-off valve 15 to close the gas shut-off valve 15, thereby cutting off the indoor gas pipe 32 and preventing further gas leakage from the source.

[0049] In one optional implementation, the control panel 12 can be wired or wirelessly connected to the hot water heater controller 13, the gas leak alarm 11, the gas shut-off valve 15, and the explosion-proof fan 16. In this embodiment, the control panel 12 and the external shut-off valve 15 are wirelessly connected, reducing cabling and making it suitable for various indoor environments. Specifically, the control panel 12 has a built-in wireless transmitter module 121, and the gas shut-off valve 15 has a built-in wireless receiver module 151. The control panel 12 and the gas shut-off valve 15 are wirelessly connected via the wireless transmitter module 121 and the wireless receiver module 151.

[0050] In one optional implementation, the wireless transmitting module 121 can be any one of a WiFi module (Wireless Local Area Network module), a Bluetooth module, a Zigbee module (Zigbee protocol wireless communication module), a LoRa module (long-range radio module), a 4G module (fourth-generation mobile communication module), and an NB-IoT module (narrowband Internet of Things module). Similarly, the wireless receiving module 151 can also be any one of a WiFi module, Bluetooth module, Zigbee module, LoRa module, 4G module, and NB-IoT module. Of course, other wireless radio frequency modules can also be used, as long as the communication protocol of the wireless transmitting module 121 and the wireless receiving module 151 is consistent.

[0051] In this embodiment, the control panel 12 is also used to send a shutdown command to the water heater controller 13 after receiving an alarm signal. The water heater controller 13 is used to control the water heater solenoid valve 14 to close after receiving the shutdown command, thereby cutting off the internal gas pipe 24.

[0052] Optionally, the hot water heater body 10 also includes a gas proportional valve 25, which is electrically connected to the hot water heater controller. The hot water heater controller 13 is also used to control the gas proportional valve 25 to close after receiving a shutdown command.

[0053] In this embodiment, the control panel 12 is further configured to generate a start command upon receiving an alarm signal and send the start command to the explosion-proof fan 16; the explosion-proof fan 16 is configured to operate upon receiving the start command, thereby performing air exchange.

[0054] Optionally, the explosion-proof fan 16 may be positioned higher than the hot water heater body 10, for example, the explosion-proof fan may be installed at a high position on the ceiling or wall.

[0055] Optional, such as Figure 2 As shown, the explosion-proof fan 16 includes an exhaust explosion-proof fan 161 and an air supply explosion-proof fan 162. The exhaust explosion-proof fan 161 is used to send indoor air to the outside, and the air supply explosion-proof fan is used to send outdoor air into the room, thereby quickly reducing the concentration of gas.

[0056] In an optional implementation, the hot water heater controller 13 is further configured to generate fault code information after receiving a shutdown instruction and send the fault code information to the control panel 12; the control panel 12 is further configured to display the fault code information. The fault code information is used to indicate specific fault situations. There is usually a fault code table on the body of the hot water heater main body 10, which includes different fault codes and corresponding meanings and solutions, etc. When the gas leakage emergency treatment device automatically cuts off the gas supply and performs rapid air exchange, if there is a user present, prompt the user about the correct handling methods when gas leakage occurs, such as further closing the manual shut-off valve, slowly and gently opening the window, not touching electrical appliances, not using an open flame or not making a phone call, etc. It is best to evacuate in time.

[0057] In an optional implementation, the control panel 12 is further configured to emit a fault alarm sound after receiving the fault code information to further remind the user that there is a gas leakage hazard in the gas heating hot water heater and to prevent the user from misoperation.

[0058] As an example, as Figure 2 shown, the hot water heater main body 10 further includes a hot water heater fan 17, a draft pressure switch 18, a heat exchanger 19, a thermostat 21, a water circuit component 26, a circulation pump 27, an expansion tank 28, etc. The setting methods of these components are the same as those of the corresponding components in the existing gas heating hot water heaters and will not be elaborated here.

[0059] Based on the above various embodiments, the beneficial effects of the present utility model can be obtained as follows:

[0060] 1. This gas heating hot water heater controls the gas cut-off valve wirelessly through the control panel. When gas leakage occurs, it can close the indoor gas pipeline, cutting off the gas from the source. At the same time, the control panel sends a shutdown instruction to the hot water heater controller, thereby closing the hot water heater solenoid valve and gas proportional valve inside the gas heating hot water heater through the hot water heater controller. On the basis of realizing the linkage control of the gas heating hot water heater and the gas cut-off valve, it does not occupy the resources of the hot water heater controller more. Whether it is gas leakage from the pipeline of the gas heating hot water heater itself or indoor pipeline leakage, it can effectively and comprehensively terminate.

[0061] 2. This gas heating hot water heater also controls the explosion-proof fan in linkage through the control panel. When gas leakage occurs, the explosion-proof fan is started to quickly reduce the indoor gas concentration.

[0062] 3. Once the gas leakage alarm detects gas leakage, it emits an alarm sound to notify the user that gas leakage has occurred. In addition, this gas heating hot water heater also displays the fault code information and emits an alarm sound through the control panel, further feedback to the user that there is a gas leakage hazard in this gas heating hot water heater, preventing the user from misoperation and ensuring the safety of gas use.

[0063] 4. This gas-fired heating and hot water boiler activates the gas leak alarm when in operation or standby mode, effectively reducing the wear and tear on the gas leak alarm and extending its service life.

[0064] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A gas-fired heating and hot water boiler capable of automatically handling gas leaks, installed indoors, characterized in that, Installed indoors, it includes a hot water heater body, a gas shut-off valve, and an explosion-proof fan; the hot water heater body includes a control panel, a gas leak alarm, a hot water heater controller, and a hot water heater solenoid valve; The hot water boiler body is connected to the burner and the gas inlet through an internal gas pipe. The hot water boiler solenoid valve is installed on the internal gas pipe. The gas inlet is connected to one end of the gas inlet pipe of the gas heating hot water boiler. The other end of the gas inlet pipe of the gas heating hot water boiler is connected to the indoor gas pipe for introducing gas. The gas shut-off valve is installed on the indoor gas pipe. The control panel is electrically connected to the gas leak alarm, the hot water boiler controller and the explosion-proof fan respectively, and wirelessly connected to the gas shut-off valve; The hot water boiler controller is electrically connected to the hot water boiler solenoid valve.

2. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 1, characterized in that, The gas leak alarm is used to detect the gas concentration value in the room when the hot water boiler is in working or standby mode, and to emit a gas leak alarm sound when the gas concentration value reaches the alarm threshold. The gas leak alarm is also used to send an alarm signal to the control panel when the gas concentration value reaches the alarm threshold. The control panel is used to send a valve-closing command to the gas shut-off valve after receiving the alarm signal, so as to close the gas shut-off valve.

3. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 2, characterized in that, The control panel is also used to send a shutdown command to the water heater controller after receiving the alarm signal; The hot water heater controller is used to control the hot water heater solenoid valve to close after receiving the shutdown command.

4. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 2, characterized in that, The control panel is also used to send a start command to the explosion-proof fan after receiving the alarm signal, so as to operate the explosion-proof fan.

5. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 1, characterized in that, The explosion-proof fan includes an exhaust explosion-proof fan and an air supply explosion-proof fan.

6. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 1, characterized in that, The control panel is equipped with a wireless transmission module, and the gas shut-off valve is equipped with a wireless receiving module; The control panel and the gas shut-off valve are wirelessly connected to the wireless receiving module via the wireless transmitting module.

7. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 1, characterized in that, The control panel is located on the front of the water heater body; The gas leak alarm is located on the side of the hot water boiler body.

8. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 3, characterized in that, The hot water heater controller is also used to send fault code information to the control panel after receiving the shutdown command; The control panel is also used to display the fault code information.

9. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 8, characterized in that, The control panel is also used to issue a fault alarm sound after receiving the fault code information.

10. The gas-fired heating and hot water boiler capable of automatically handling gas leaks according to claim 3, characterized in that, The hot water boiler body also includes a gas proportional valve; the gas proportional valve is electrically connected to the hot water boiler controller; The hot water boiler controller is used to control the gas proportional valve to close after receiving the shutdown command.

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