Gas water heater with flame monitoring device

Abstract

The utility model relates to the technical field of water heaters, in particular to a gas water heater with a flame monitoring device. The gas water heater comprises a combustor, a heat exchanger, a fire sensing needle and an alarm controller, a monitoring window is arranged on the side wall of the heat exchanger, the fire sensing needle is arranged on the outer side of the monitoring window through a halfpace-shaped installation support, the alarm controller is arranged at the bottom of the combustor, the fire sensing needle is electrically connected with the alarm controller, and the alarm controller is electrically connected with the heat exchanger. When the flame height of the combustor exceeds a critical value, flames are sprayed out from the monitoring window, an alarm can be given out in time through the fire sensing needle and the alarm controller, the reaction for controlling the flame height can be made in time and rapidly, and safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a gas water heater provided with a flame monitoring device. Background Art

[0002] The Chinese utility model patent with publication number CN205919508U discloses a blast-type gas water heater using flame temperature detection and wind speed compensation, including a burner and a heat exchanger, and a closed combustion chamber formed between the heat exchanger and the burner; at least one temperature sensing probe is embedded on the inner wall of the closed combustion chamber, and the temperature sensing probe determines whether the exhaust port is blocked or the external wind pressure is too large by measuring the temperature of the combustion chamber. When the measured combustion chamber temperature reaches or exceeds a certain preset value, the exhaust volume is increased by increasing the fan speed, thereby controlling the combustion state.

[0003] The problem with the existing technology is that if the user accidentally adjusts the firepower of the gas water heater too high and the flame height exceeds the critical value, the temperature change requires a process and the existing technology cannot detect the danger signal and respond in time in a short time, which can easily cause damage to the internal components of the water heater and cause danger, posing a safety hazard.

[0004] Therefore, the existing technology is in urgent need of improvement. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a gas water heater which can timely monitor the height of the combustion flame and has high safety.

[0006] The technical solution adopted by the utility model to solve the problem is: a gas water heater with a flame monitoring device, comprising a burner, a heat exchanger and a water inlet pipe, wherein the burner is arranged at the bottom of the heat exchanger, and the water inlet pipe is wound around the heat exchanger, and is characterized in that:

[0007] A monitoring window is provided on the side wall of the heat exchanger, and the monitoring window is at a certain height from the burner;

[0008] It also includes a fire sensing needle and an alarm controller. The fire sensing needle is fixedly connected to the heat exchanger, the fire sensing needle is located outside the monitoring window, and the fire sensing needle is electrically connected to the alarm controller.

[0009] When the height of the burning flame exceeds the critical value, the flame will spray out from the monitoring window. The fire sensing needle will detect the danger signal and transmit it to the alarm controller through electric current. The alarm controller will sound an alarm and control the burning flame in time by adjusting the gas valve. It has a quick response and high safety.

[0010] As a further improvement of the above technical solution, it also includes a mounting bracket, through which the fire sensing needle is fixedly mounted on the outer side wall of the heat exchanger. The mounting bracket is used to fix the fire sensing needle and the wire.

[0011] As a further improvement of the above technical solution, the mounting bracket is in a step-shaped form, and includes a supporting portion and a connecting portion, and there is a certain distance between the supporting portion and the connecting portion, and the fire-sensing needle is mounted on the supporting portion. By providing a step-shaped mounting bracket, a safe distance is provided between the fire-sensing needle, the wire and the heat exchanger, so as to prevent the fire-sensing needle and the wire from being damaged due to long-term direct contact with the high temperature of the side wall of the heat exchanger.

[0012] As a further improvement of the above technical solution, the alarm controller is arranged at the bottom of the burner, and the alarm controller controls the opening and closing of the gas proportional valve and the combustion firepower by changing the working current of the gas proportional valve.

[0013] As a further improvement of the above technical solution, a heat insulation plate is provided between the alarm controller and the burner to prevent the internal components of the alarm controller from being damaged by long-term high temperature.

[0014] The beneficial effects of the utility model are as follows: a monitoring window is arranged on the heat exchanger, a fire sensing needle is arranged outside the monitoring window, the fire sensing needle is electrically connected to the alarm controller, when the flame height of the burner exceeds a critical value, the flame sprays out from the monitoring window, through the fire sensing needle, the alarm controller can promptly issue an alarm and make a control response, which is timely, rapid and highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the mounting bracket of the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 1-burner, 2-heat exchanger, 21-monitoring window, 3-water inlet pipe, 4-fire sensing needle, 5-mounting bracket, 51-support part, 52-connecting part, 6-alarm controller, 7-heat insulation board. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0024] Reference Figure 1 to Figure 2 A gas water heater provided with a flame monitoring device comprises a burner 1, a heat exchanger 2 and a water inlet pipe 3, wherein the burner 1 is arranged at the bottom of the heat exchanger 2, and the water inlet pipe 3 is wound around the heat exchanger 2.

[0025] In a preferred embodiment, a monitoring window 21 is provided on the side wall of the heat exchanger 2 , and the monitoring window 21 is at a certain height from the burner 1 .

[0026] The mounting bracket 5 and the fire-sensing needle 4 are also included. The mounting bracket 5 is in a step-like shape. The mounting bracket 5 includes a supporting portion 51 and a connecting portion 52. There is a certain distance between the supporting portion 51 and the connecting portion 52. The fire-sensing needle is mounted on the supporting portion.

[0027] The fire sensing needle 4 is fixedly connected to the heat exchanger 2 via a mounting bracket 5 . The position of the fire sensing needle 4 corresponds to the monitoring window 21 . The fire sensing needle 4 is located outside the monitoring window 21 .

[0028] The alarm controller 6 is arranged at the bottom of the burner 1, and a heat insulation plate is arranged between the alarm controller 6 and the burner 1. The alarm controller 6 is electrically connected to the alarm controller 6. The functions of the alarm controller 6 include: one is to sound an alarm, and the other is to control the opening and closing of the gas proportional valve and the combustion fire power by changing the working current of the gas proportional valve (not shown in the figure).

[0029] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas water heater provided with a flame monitoring device, comprising a burner (1), a heat exchanger (2) and a water inlet pipe (3), wherein the burner (1) is arranged at the bottom of the heat exchanger (2), and the water inlet pipe (3) is wound around the heat exchanger (2), characterized in that: A monitoring window (21) is provided on the side wall of the heat exchanger (2), and the monitoring window (21) is at a certain height from the burner (1); It also includes a fire sensing needle (4) and an alarm controller (6), wherein the fire sensing needle (4) is fixedly connected to the heat exchanger (2), the fire sensing needle (4) is located outside the monitoring window (21), and the fire sensing needle (4) is electrically connected to the alarm controller (6).

2. A gas water heater with a flame monitoring device as claimed in claim 1, characterized in that: It also comprises a mounting bracket (5), and the fire sensing needle (4) is fixedly mounted on the outer wall of the heat exchanger (2) via the mounting bracket (5).

3. A gas water heater with a flame monitoring device as claimed in claim 2, characterized in that: The mounting bracket (5) is in a step-shaped form, and comprises a supporting portion (51) and a connecting portion (52). There is a certain distance between the supporting portion (51) and the connecting portion (52), and the ignition needle (4) is mounted on the supporting portion (51).

4. A gas water heater with a flame monitoring device as claimed in claim 1, characterized in that: The alarm controller (6) is arranged at the bottom of the burner (1), and the alarm controller (6) controls the opening and closing of the gas proportional valve and the size of the combustion firepower by changing the working current of the gas proportional valve.

5. A gas water heater with a flame monitoring device as claimed in claim 4, characterized in that: A heat insulation plate is provided between the alarm controller (6) and the burner (1).

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