Gas heating water heater with gas leakage protection device

Abstract

A fuel gas heating water heater with a fuel gas leakage protection device comprises a furnace shell with an electric appliance cavity, a combustor, an exhaust fan and a control circuit board are arranged in the electric appliance cavity, and the fuel gas leakage protection device comprises a fuel gas leakage detector, a fuel gas stop valve and a control component. According to the fuel gas heating water heater with the fuel gas leakage protection device, when fuel gas leakage is detected, fuel gas leading to the combustor can be actively cut off, the fuel gas in the combustor can be discharged in time, the concentration value of the fuel gas in a room is reduced, and the use safety of the fuel gas heating water heater is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating equipment, concretely relates to a gas heating water heater with gas leakage protection device. BACKGROUND

[0002] The conventional heating equipment includes a heating device, such as a gas heating water heater, which needs to use gas when working, and the gas is mixed with air to burn and generate heat to heat water. The gas heating water heater has a certain risk of gas leakage during installation and use. Once gas leakage occurs, serious consequences will be caused. Therefore, the gas concentration in the use environment must be strictly monitored to avoid gas leakage.

[0003] The common gas leakage monitoring method currently generally uses a gas leakage alarm, which is usually purchased separately and installed in the use place of the gas. The problem is that the gas leakage alarm with the above structure can only send light alarm and / or sound alarm to the external environment when detecting gas leakage. Therefore, the alarm range is very limited. Once gas leakage occurs in an unattended situation, the user cannot discover it in time. Moreover, the gas leakage alarm and the gas pipeline and the gas heating water heater are not directly connected. Therefore, the gas leakage alarm can only send an alarm signal to the external environment. When gas leakage occurs, the gas cannot be automatically disconnected. Therefore, there is a certain safety hazard.

[0004] Therefore, further improvement is needed. INVENTION CONTENTS

[0005] The utility model aims at at least one of the deficiencies of the prior art, and provides a gas heating water heater with a gas leakage protection device, which can automatically disconnect the gas to the burner and timely discharge the gas in the burner when detecting gas leakage, reduce the gas concentration value in the room, and improve the use safety of the gas heating water heater.

[0006] To achieve the above-mentioned purpose, the technical scheme provided by the utility model embodiment is:

[0007] A gas heating water heater with a gas leakage protection device, comprising a furnace shell with an electric cavity, a burner, an exhaust fan, and a control circuit board are arranged in the electric cavity, the exhaust fan is arranged on the gas outlet end of the burner, the burner and the exhaust fan are electrically connected with the control circuit board respectively, and the gas leakage protection device comprises:

[0008] A gas leakage detector is arranged on the furnace shell to detect the gas concentration value around the gas heating water heater.

[0009] A gas cut-off valve is arranged in the electric appliance cavity and located at the gas inlet end of the burner and electrically connected with the control circuit board to control the on-off of the gas entering the burner.

[0010] A control component is arranged in the indoor site and electrically connected with the control circuit board and signal-transmitted with the gas leakage detector to receive the alarm signal of the gas leakage detector and send a control signal to the control circuit board.

[0011] When the gas concentration value is higher than the set value of the gas leakage detector, the gas leakage detector is activated and sends an alarm signal to the control component, and the control component receives the alarm signal and sends a control signal to the control circuit board to stop the burner and open the exhaust fan and close the gas cut-off valve.

[0012] The gas leakage protection device further comprises an alarm component arranged on the furnace shell and / or in the indoor site and electrically connected with the control component.

[0013] When the gas leakage detector sends an alarm signal to the control component, the control component sends a control signal to the alarm component to send a light alarm and / or a sound alarm.

[0014] The gas inlet end of the gas-fired heating water heater is provided with a gas pipeline in communication with an external gas source, and the gas leakage protection device further comprises an electric cut-off valve arranged on the gas pipeline and located between the external gas source and the gas-fired heating water heater, the electric cut-off valve is connected with the control component by wire or wirelessly, and the electric cut-off valve is a wired cut-off valve or a wireless control cut-off valve.

[0015] When the gas leakage detector sends an alarm signal to the control component, the control component sends a control signal to the electric cut-off valve to close the electric cut-off valve and disconnect the gas pipeline.

[0016] The gas leakage protection device further comprises a manual cut-off valve arranged on the gas pipeline and located between the external gas source and the electric cut-off valve and / or between the electric cut-off valve and the gas-fired heating water heater to manually control the on-off of the gas pipeline.

[0017] The gas leakage protection device further comprises a power supply component electrically connected with the gas-fired heating water heater and the gas leakage detector, the power supply component comprises an alternating current power supply module obtaining energy from the urban power grid and / or a direct current power supply module obtaining energy from a storage battery.

[0018] The gas leakage detector is located on the front and / or back and / or side of the furnace shell, and the gas leakage detector comprises a detection body and a mounting component arranged on the back of the detection body, and the gas leakage detector is arranged on the furnace shell through the mounting component.

[0019] The detection body and the mounting component are provided with a detachable structure, the mounting component is detachably mounted on the detection body through the detachable structure, the detachable structure comprises mounting grooves arranged on the detection body and mounting rails arranged on the mounting component, the mounting grooves are arranged on the back of the detection body in two rows and at intervals, and the mounting rails are arranged on the side edges of the mounting component in two rows and oppositely.

[0020] The mounting component is provided with a limiting portion, the limiting portion is arranged on the mounting rail and close to the bottom surface of the mounting component, and the mounting component is limitedly mounted on the detection body through the limiting portion.

[0021] The detection body and the mounting component are further provided with a locking structure, the mounting component is locked and mounted on the detection body through the locking structure, the locking structure comprises a lock hook arranged on the detection body and a lock groove arranged on the mounting component, the lock hook is located in the mounting groove, the lock groove is located on the mounting rail, and the lock hook and the lock groove are mutually buckled.

[0022] The mounting component and the furnace shell are provided with a mounting structure, the mounting component is fixedly arranged on the furnace shell through the mounting structure, the mounting structure comprises mounting screw holes arranged on the furnace shell, mounting through holes arranged on the mounting component and fastening components which are mutually screwed with the mounting screw holes, the mounting screw holes are located on the side surface of the furnace shell, the mounting through holes are arranged on the mounting component, and the mounting screw holes and the mounting through holes are mutually corresponding.

[0023] The beneficial effects of the present application are as follows:

[0024] The gas heating water furnace with the gas leakage protection device has the advantages that when the gas concentration value is higher than the set value of the gas leakage detector, the gas leakage detector is activated and sends an alarm signal to the control component, the control component receives the alarm signal and simultaneously sends a control signal to the control panel circuit, the burner is actively shut down, the exhaust fan is timely opened and the gas shut-off valve is closed, the gas to the burner is actively disconnected, the gas in the burner is timely discharged to the outdoor, the gas concentration value in the room is reduced to the set value of the gas leakage detector, and the use safety of the gas heating water furnace is improved.

[0025] The gas heating water furnace with the gas leakage protection device further comprises an alarm component, the alarm component sends light alarm and sound alarm to the external environment after receiving the signal of the control component, when the gas leaks, the personnel in the alarm range can timely find the gas leakage and handle it, and the use safety of the gas heating water furnace is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1This is a schematic diagram illustrating the working principle of a gas-fired heating and hot water boiler with a gas leakage protection device according to an embodiment of the present invention.

[0027] Figure 2 This is a rear view of a gas-fired heating and hot water boiler according to an embodiment of the present invention.

[0028] Figure 3 This is an exploded view of the detection body and mounting components according to an embodiment of the present invention.

[0029] Figure 4 for Figure 3 Enlarged view of part A.

[0030] Figure 5 for Figure 3 Enlarged view of part B.

[0031] Figure 6 This is an exploded view of the mounting components and furnace shell according to an embodiment of the present invention. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0033] See Figures 1-6The gas heating water heater with the gas leakage protection device comprises a furnace shell 1, an electric cavity 101 is arranged in the furnace shell 1 for placing a burner 2, an exhaust fan 3, a control circuit board 4 and other components, the burner 2 is used for heating water by burning gas and air mixture, the exhaust fan 3 is preferably a volute fan and is installed in the electric cavity 101 and located on the gas outlet end of the gas burner and communicates with the combustion chamber of the burner 2, and is used for discharging the exhaust gas in the burner 2 to the outdoor, the burner 2 and the exhaust fan 3 are electrically connected with the controller respectively, so that the control circuit board 4 can control the burner 2 and the exhaust fan 3 respectively, the gas leakage protection device comprises a gas leakage detector 6, a gas cut-off valve 7 and a control component, the gas leakage detector 6 is preferably a semiconductor detector, is installed on the furnace shell 1 and located on the side of the furnace shell 1, can detect the gas concentration value around the gas heating water heater, the gas cut-off valve 7 is preferably an electromagnetic valve, is installed in the electric cavity 101 and located on the gas inlet end of the burner 2, communicates with the combustion chamber of the burner 2 and is electrically connected with the control circuit board 4, when the gas cut-off valve 7 is powered off, is in the communication state to enable the gas to pass to the burner 2, when the gas cut-off valve 7 is powered on, is in the closed state to prevent the gas from passing to the burner 2, can automatically control the gas to enter the burner 2, the control component is preferably a control panel and is arranged in the indoor place, is electrically connected with the control circuit board 4 through wires, and is connected with the gas leakage detector 6 through infrared signal transmission and / or Bluetooth signal transmission, can receive the alarm signal of the gas leakage detector 6 and send the control signal to the control circuit board 4;

[0034] When the gas leakage detector 6 detects that the gas concentration value around the gas heating water heater is higher than the set value of the gas leakage detector 6, the gas leakage detector 6 activates and sends an alarm signal to the control component, the control component receives the alarm signal and sends a control signal to the control circuit board at the same time, the burner 2 actively stops and timely opens the exhaust fan 3 and closes the gas cut-off valve 7, so that the gas passing to the burner 2 is actively disconnected, the gas in the burner 2 is timely discharged to the outdoor, and the gas concentration value in the room is reduced to the set value of the gas leakage detector 6, thereby improving the use safety of the gas heating water heater;

[0035] When the gas leakage detector 6 detects that the gas concentration value around the gas heating water heater is lower than the set value of the gas leakage detector 6, the gas leakage detector 6 and the gas cut-off valve 7 need to be reset by manual operation, so as to close the gas leakage detector 6 and reopen the gas cut-off valve 7, so that the user can restart the gas heating water heater after ensuring that there is no gas leakage on the spot, thereby further improving the use safety of the gas heating water heater.

[0036] Further, the gas leakage protection device further comprises an alarm component, specifically, in the embodiment, the alarm component is preferably a household gas alarm, which is installed in the use place of the gas and has the sound and light alarm function, and the alarm component and the control component are electrically connected through wires or the like. When the gas leakage detector 6 detects that the gas concentration value around the gas heating water heater is greater than the set value and sends an alarm signal to the control component, the alarm component receives the signal from the control component and sends out light alarm and sound alarm to the external environment, so that the personnel in the alarm range can timely find the gas leakage and handle it, thereby further improving the use safety of the gas heating water heater, which can be understood by those skilled in the art.

[0037] Further, the gas heating water heater is provided with a gas pipeline in communication with the external gas source, and the gas leakage protection device further comprises an electric shut-off valve, specifically, in the embodiment, the electric shut-off valve is preferably an electromagnetic valve, which is installed on the gas pipeline and located between the external gas source and the gas heating water heater. When the gas shut-off valve 7 is powered off, it is in a communication state to enable the gas to pass to the gas heating water heater, and when the electric shut-off valve is powered on, it is in a closed state to prevent the gas from passing to the gas heating water heater, thereby automatically controlling the gas entering the gas heating water heater. The electric shut-off valve and the control component are wiredly connected, and the electric shut-off valve is preferably a line hole shut-off valve. When the gas leakage detector 6 detects that the gas concentration value around the gas heating water heater is greater than the set value and sends an alarm signal to the control component, the electric shut-off valve receives the signal from the control component and is powered on to be closed, so that the gas pipeline is actively disconnected and the gas is prevented from entering the gas heating water heater, thereby preventing the gas from continuing to leak from the gas heating water heater, and further improving the use safety of the gas stove, which can be understood by those skilled in the art.

[0038] Further, the gas leakage protection device further comprises a manual shut-off valve, specifically, in the embodiment, the manual shut-off valve is preferably a ball valve, which is installed on the gas pipeline, and the number thereof is preferably two and located between the external gas source and the electric shut-off valve and between the electric shut-off valve and the gas heating water heater. The manual shut-off valve can be used to manually control the gas on-off of the entire gas pipeline and the gas on-off of the gas pipeline connected to the gas heating water heater, thereby facilitating the maintenance of the gas pipeline and the gas stove, which can be understood by those skilled in the art.

[0039] Further, the gas leakage protection device further comprises a power supply component 8. Specifically, in the embodiment, the power supply component 8 comprises an alternating current power supply module that obtains energy from a city power grid and a direct current power supply module that obtains energy from a storage battery. The alternating current power supply module is externally arranged outside the gas leakage protection device and is electrically connected to the gas heating water furnace through a wire or the like, so that the control circuit board 4, the exhaust fan 3, the gas shut-off valve 7, the control component, and the electric shut-off valve can obtain stable and long-acting energy. The direct current power supply module is internally arranged inside the gas leakage protection system, i.e., the gas leakage detector 6 is provided with the direct current power supply module, so that the gas leakage detector 6 can obtain energy without wired connection, the placement position range of the gas leakage detector 6 is larger, the user can easily change the detection position of the gas leakage detector 6, and the use experience of the user on the gas leakage protection system can be improved to a certain extent, which can be understood by those skilled in the art.

[0040] Further, the gas leakage detector 6 comprises a detection body 61 and a mounting component 62. Specifically, in the embodiment, a detachable structure is arranged between the detection body 61 and the mounting component 62. The mounting component 62 is detachably mounted on the back surface of the detection body 61 through the detachable structure. The mounting component 62 is fixedly arranged on the furnace shell 1 through a mounting structure arranged between the mounting component 62 and the furnace shell 1. Through the above technical solution, the detection body 61 is mounted on the furnace shell 1 through the mounting component 62, so that the gas leakage detector 6 is arranged on the furnace shell 1, which can be understood by those skilled in the art.

[0041] Further, in the embodiment, the detachable structure comprises mounting grooves 610 and mounting rails 620. Specifically, the mounting grooves 610 are arranged on the detection body 61. The number thereof is preferably two and is arranged on the back surface of the detection body 61 in a left-right direction. The mounting rails 620 are arranged on the mounting component 62 and correspond to the mounting grooves 610. The number thereof is preferably two and is oppositely arranged on the left and right side edges of the mounting component 62. When the mounting rails 620 are inserted into the mounting grooves 610 and slide in the direction from the upper end to the lower end of the mounting grooves 610, the mounting component 62 is mounted on the detection body 61. When the mounting rails 620 slide in the direction from the lower end to the upper end of the mounting grooves 610 and are detached from the mounting grooves 610, the mounting component 62 is detached from the detection body 61. Through the above technical solution, the mounting component 62 is detachably arranged on the detection body 61, which can be understood by those skilled in the art.

[0042] Further, the mounting component 62 is provided with a limiting portion 621. Specifically, in the embodiment, the limiting portion 621 is arranged on the mounting rail 620 and close to the bottom surface of the mounting component 62. When the mounting component 62 is mounted on the detection body 61, the groove bottom end portion abuts against the limiting portion 621. Through the above technical solution, the mounting component 62 is limitedly mounted on the detection body 61, which can be understood by those skilled in the art.

[0043] Further, the detection body 61 and the mounting component 62 are further provided with a locking structure, specifically, the locking structure comprises a locking hook 611 and a locking groove 622, the locking hook 611 is arranged on the detection body 61, the number thereof is preferably two and is respectively located in the two mounting grooves 610, the locking groove 622 is arranged on the mounting component 62, the number thereof is preferably two and is respectively located on the two mounting rails 620, when the mounting rail 620 is inserted into the mounting groove 610, the locking hook 611 and the locking groove 622 are buckled with each other, so that the mounting component 62 is locked and mounted on the detection body 61, and those skilled in the art can understand.

[0044] Further, in the embodiment, the mounting structure comprises a mounting screw hole 102, a mounting through hole 623 and a fastening component, specifically, the number of the mounting screw hole 102 is preferably two and is arranged on the side surface of the furnace shell 1, the number of the mounting through hole 623 corresponding to the mounting screw hole 102 is preferably two and is arranged on the mounting component 62 in a penetrating manner, and the fastening component is preferably a screw, when the mounting component 62 is placed on the side surface of the furnace shell 1, the fastening component is screwed through the mounting through hole 623 and is screwed with the mounting screw hole 102, so that the mounting component 62 is fixedly arranged on the furnace shell 1, and those skilled in the art can understand.

[0045] The above is the preferred scheme of the utility model, the basic principle, the main features and the advantages of the utility model are displayed and described. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A gas heating water heater with gas leakage protection device, comprising a furnace shell (1) with an electric appliance cavity (101), a burner (2), an exhaust fan (3) and a control circuit board (4) are arranged in the electric appliance cavity (101), the exhaust fan (3) is arranged on the gas outlet end of the burner (2), the burner (2) and the exhaust fan (3) are electrically connected with the control circuit board (4) respectively, characterized in that, The gas leakage protection device comprises: a gas leakage detector (6) arranged on the furnace shell (1) to detect the gas concentration value around the gas heating water heater; a gas cut-off valve (7) arranged in the electric appliance cavity (101) and located at the gas inlet end of the burner (2) and electrically connected with the control circuit board (4) to control the on-off of the gas entering the burner (2); a control component arranged in the indoor site and electrically connected with the control circuit board (4) and signal-transmitted with the gas leakage detector (6) to receive the alarm signal of the gas leakage detector (6) and send a control signal to the control circuit board (4); when the gas concentration value is higher than the set value of the gas leakage detector (6), the gas leakage detector (6) is activated and sends an alarm signal to the control component, and the control component receives the alarm signal and sends a control signal to the control circuit board to make the burner (2) stop and open the exhaust fan (3) and close the gas cut-off valve (7).

2. The gas-fired combination heater and water heater of claim 1, wherein: The gas leakage protection device further comprises an alarm component arranged on the furnace shell (1) and / or in the indoor site and electrically connected with the control component; when the gas leakage detector sends an alarm signal to the control component, the control component sends a control signal to the alarm component to send a light alarm and / or a sound alarm.

3. The gas-fired combination heater and water heater of claim 1, wherein: The gas heating water heater is provided with a gas pipeline in communication with an external gas source at the gas inlet end, and the gas leakage protection device further comprises an electric cut-off valve arranged on the gas pipeline and located between the external gas source and the gas heating water heater, the electric cut-off valve is connected with the control component by wire or wirelessly, and the electric cut-off valve is a wired cut-off valve or a wireless control cut-off valve; when the gas leakage detector sends an alarm signal to the control component, the control component sends a control signal to the electric cut-off valve to close the electric cut-off valve and disconnect the gas pipeline.

4. The gas-fired combination heater and water heater of claim 3, wherein: The gas leakage protection device further comprises a manual cut-off valve arranged on the gas pipeline and located between the external gas source and the electric cut-off valve and / or between the electric cut-off valve and the gas heating water heater to manually control the on-off of the gas pipeline.

5. The gas-fired combination heater water heater of claim 1, wherein The gas leakage protection device further comprises a power supply component (8) electrically connected with the gas heating water heater and the gas leakage detector (6), respectively, the power supply component (8) comprises an alternating current power supply module obtaining energy from the urban power grid and / or a direct current power supply module obtaining energy from a storage battery.

6. The gas-fired combination boiler according to any of the preceding claims 1-5, characterized in that, The gas leakage detector (6) is located on the front and / or back and / or side of the furnace shell (1), the gas leakage detector (6) comprises a detection body (61) and a mounting component (62), the mounting component (62) is arranged on the back of the detection body (61), and the gas leakage detector (6) is arranged on the furnace shell (1) through the mounting component (62).

7. The gas-fired combination boiler according to claim 6, characterized in that, The detection body (61) is provided with a detachable structure between the mounting component (62), the mounting component (62) is detachably mounted on the detection body (61) through the detachable structure, the detachable structure comprises a mounting groove (610) provided on the detection body (61) and a mounting rail (620) provided on the mounting component (62), the mounting groove (610) is arranged on the back of the detection body (61) in two rows and is spaced apart, the mounting rail (620) is arranged on the side of the mounting component (62) in two rows and is opposite, and the mounting groove (610) and the mounting rail (620) are slidably matched with each other.

8. The gas-fired combination heater water heater of claim 7, wherein, The mounting component (62) is provided with a limiting portion (621), the limiting portion (621) is arranged on the mounting rail (620) and is close to the bottom surface of the mounting component (62), and the mounting component (62) is limitedly mounted on the detection body (61) through the limiting portion (621).

9. The gas-fired wall hung combination boiler of claim 7, wherein, The detection body (61) and the mounting component (62) are further provided with a locking structure, the mounting component (62) is locked and mounted on the detection body (61) through the locking structure, the locking structure comprises a lock hook (611) provided on the detection body (61) and a lock groove (622) provided on the mounting component (62), the lock hook (611) is located in the mounting groove (610), the lock groove (622) is located on the mounting rail (620), and the lock hook (611) and the lock groove (622) are mutually buckled.

10. The gas-fired wall hung combination boiler of claim 6, wherein, The mounting component (62) and the furnace shell (1) are provided with a mounting structure, the mounting component (62) is fixedly arranged on the furnace shell (1) through the mounting structure, the mounting structure comprises a mounting screw hole (102) provided on the furnace shell (1), a mounting through hole (623) provided on the mounting component (62) and a fastening component screw-connected with each other, the mounting screw hole (102) is located on the side of the furnace shell (1), the mounting through hole (623) is arranged on the mounting component (62), and the mounting screw hole (102) and the mounting through hole (623) correspond to each other.

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