Gas proportional control valve of water heater

Abstract

The fuel gas proportional control valve comprises a valve body, a gas inlet is formed in the first end of the valve body, a gas inlet control cavity, a first proportional adjusting cavity and a second proportional adjusting cavity are sequentially formed in the valve body from the first end to the second end, a first valve port is formed between the gas inlet control cavity and the gas inlet, and a second valve port is formed between the first proportional adjusting cavity and the second proportional adjusting cavity. A valve cavity is arranged between the air inlet control cavity and the first proportional adjusting cavity, the valve cavity is communicated with the air inlet control cavity through a communicating hole, a second valve port is arranged between the valve cavity and the first proportional adjusting cavity, and a third valve port is arranged between the first proportional adjusting cavity and the second proportional adjusting cavity. The valve body is provided with a first stop valve used for controlling opening and closing of the first valve port, an electric control adjusting valve used for controlling opening and closing of the second valve port and a second stop valve used for controlling opening and closing of the third valve port, and the side wall of the first proportional adjusting cavity and the side wall of the second proportional adjusting cavity are each provided with a plurality of air outlet nozzles. The proportional control valve can solve the problem that no reliable proportional control valve exists in the water heater.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a gas proportional control valve for water heaters. Background Art

[0002] Current gas water heaters are often used all year round. During the heating process of the gas water heater, gas needs to enter the burner. Different air intake volumes correspond to different combustion efficiencies. Currently, there is no corresponding gas intake ratio regulating valve in gas water heaters. The combustion efficiency of gas water heaters is the same throughout the year, which is actually very wasteful. Because the temperature is high in summer, if the air intake volume can be reduced, the water heater can maintain a specific water temperature with a relatively small gas consumption. Therefore, a proportional control valve is needed to meet the air intake volume adjustment of the water heater under different temperature environments. Utility Model Content

[0003] The utility model provides a gas proportional control valve for a water heater, which can solve the problem that the existing water heaters have no reliable proportional control valve.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas proportional control valve for a water heater, comprising a valve body, wherein the first end of the valve body is provided with an air inlet, the interior of the valve body is provided with an air inlet control chamber, a first proportional adjustment chamber, and a second proportional adjustment chamber in sequence from the first end to the second end, a first valve port is provided between the air inlet control chamber and the air inlet, a valve chamber is provided between the air inlet control chamber and the first proportional adjustment chamber, the valve chamber and the air inlet control chamber are connected through a connecting hole, and a second proportional adjustment chamber is provided between the valve chamber and the first proportional adjustment chamber. Valve port, a third valve port is provided between the first proportional adjustment chamber and the second proportional adjustment chamber, and the valve body is equipped with a first stop valve for controlling the opening and closing of the first valve port, an electrically controlled regulating valve for controlling the opening and closing of the second valve port, and a second stop valve for controlling the opening and closing of the third valve port. A plurality of air outlet nozzles are provided on the side walls of the first proportional adjustment chamber and the second proportional adjustment chamber. By setting the first proportional adjustment chamber and the second proportional adjustment chamber and controlling the opening and closing of the corresponding three valve ports, air outlet from different numbers of air outlet nozzles can be achieved, thereby realizing proportional regulation of the air intake of the water heater.

[0005] Preferably, the number of air outlet nozzles on the first proportional adjustment chamber and the number of air outlet nozzles on the second proportional adjustment chamber are different, so that the adjustment of the air intake volume is more flexible.

[0006] Preferably, the second end of the valve body is provided with a mounting plate to facilitate installation of the entire control valve into the water heater.

[0007] Preferably, an air inlet connector is installed at the air inlet to facilitate connection with a gas delivery device.

[0008] Preferably, a detachable side panel is installed on one side of the valve body, which is convenient for removal to repair the interior of the valve body and replace parts.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] The structure is simple. By setting the first proportional adjustment chamber and the second proportional adjustment chamber and controlling the opening and closing of the corresponding three valve ports, different numbers of air outlet nozzles can be used to discharge air, thereby realizing proportional adjustment of the air intake of the water heater. The opening and closing control of the three valve ports adopts the first stop valve, the second stop valve and the electrically controlled regulating valve. The first stop valve and the second stop valve can realize whether the first proportional adjustment chamber and the second proportional adjustment chamber take in air, and the electrically controlled regulating valve can adjust the air intake into the second proportional adjustment chamber. It is flexible to use and can meet the air supply needs of water heaters in different scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional cross-sectional structural diagram of the utility model;

[0012] Figure 2 This is a three-dimensional structural diagram of the utility model after removing the side panels;

[0013] Figure 3 This is a main sectional structural diagram of the present utility model. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] like Figure 1-3As shown, the utility model provides a gas proportional control valve for a water heater, comprising a valve body 1, wherein the first end of the valve body 1 is provided with an air inlet 5, and the interior of the valve body 1 is provided with an air inlet control chamber 7, a first proportional adjustment chamber 14, and a second proportional adjustment chamber 13 in sequence from the first end to the second end, a first valve port 8 is provided between the air inlet control chamber 7 and the air inlet 5, a valve chamber 11 is provided between the air inlet control chamber 7 and the first proportional adjustment chamber 14, the valve chamber 11 is connected to the air inlet control chamber 7 through a connecting hole 9, a second valve port 10 is provided between the valve chamber 11 and the first proportional adjustment chamber 14, the A third valve port 12 is provided between the first proportional adjustment chamber 14 and the second proportional adjustment chamber 13. The valve body 1 is provided with a first stop valve 4 for controlling the opening and closing of the first valve port 8, an electrically controlled regulating valve 3 for controlling the opening and closing of the second valve port 10 and a second stop valve 2 for controlling the opening and closing of the third valve port 12. A plurality of air outlet nozzles 6 are provided on the side walls of the first proportional adjustment chamber 14 and the second proportional adjustment chamber 13. By setting the first proportional adjustment chamber 14 and the second proportional adjustment chamber 13 and controlling the opening and closing of the corresponding three valve ports, air outlet from different numbers of air outlet nozzles 6 can be achieved, thereby realizing proportional regulation of the air intake of the water heater.

[0016] Specifically, external gas can enter the valve body 1 from the air inlet 5. When the first stop valve 4 opens the first valve port 8, the gas can enter the air intake control chamber 7. The gas then enters the valve chamber 11. The electronically controlled regulating valve 3 controls the opening size of the second valve port 10 under the control of the current, and the gas enters the first proportional regulating chamber 14. At this time, the gas can be discharged from the air outlet nozzle 6 on the side wall of the first proportional regulating chamber 14.

[0017] At this time, if the second stop valve 2 controls the third valve port 12 to be in a closed state, the gas cannot enter the second proportional adjustment chamber 13. For example, in summer or when the temperature is relatively high, the third valve port 12 will not open.

[0018] If it is winter, the second stop valve 2 controls the third valve port 12 to be in an open state, so that the gas can enter the first proportional adjustment chamber 14, and the gas can be discharged from the gas outlet 6 on the side wall of the first proportional adjustment chamber 14.

[0019] Therefore, the first proportional adjustment chamber 14 and the second proportional adjustment chamber 13 can be controlled to discharge gas respectively by controlling the three valves.

[0020] Among them, the number of air outlet nozzles 6 on the first proportional adjustment chamber 14 and the second proportional adjustment chamber 13 are different, which makes the adjustment of the air intake volume more flexible. For example, three air outlet nozzles 6 are set in the first proportional adjustment chamber 14, while two air outlet nozzles 6 can be set in the second proportional adjustment chamber 13.

[0021] In order to facilitate the installation and fixation of the entire control valve, the second end of the valve body 1 is provided with a mounting plate 15, which facilitates the installation of the entire control valve into the water heater. At the same time, the air inlet 5 is provided with an air inlet connector for easy connection to the gas delivery device.

[0022] In order to facilitate the production of components, a detachable side plate 16 is installed on one side of the valve body 1, which is convenient for disassembly to repair the interior of the valve body 1 and replace components.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0026] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A gas proportional control valve for a water heater, characterized in that: include: A valve body (1), wherein the first end of the valve body (1) is provided with an air inlet (5), the interior of the valve body (1) is provided with an air inlet control chamber (7), a first proportional adjustment chamber (14) and a second proportional adjustment chamber (13) in sequence from the first end to the second end, a first valve port (8) is provided between the air inlet control chamber (7) and the air inlet (5), a valve chamber (11) is provided between the air inlet control chamber (7) and the first proportional adjustment chamber (14), the valve chamber (11) and the air inlet control chamber (7) are connected via a connecting hole (9), and the valve chamber (11) A second valve port (10) is provided between the first proportional regulating chamber (14), a third valve port (12) is provided between the first proportional regulating chamber (14) and the second proportional regulating chamber (13), a first stop valve (4) for controlling the opening and closing of the first valve port (8), an electric control regulating valve (3) for controlling the opening and closing of the second valve port (10), and a second stop valve (2) for controlling the opening and closing of the third valve port (12) are installed on the valve body (1), and a plurality of air outlet nozzles (6) are provided on the side walls of the first proportional regulating chamber (14) and the second proportional regulating chamber (13).

2. The gas proportional control valve for a water heater according to claim 1, characterized in that: The number of air outlet nozzles (6) on the first proportional adjustment chamber (14) and the number of air outlet nozzles (6) on the second proportional adjustment chamber (13) are different.

3. The gas proportional control valve for a water heater according to claim 1, characterized in that: The second end of the valve body (1) is provided with a mounting plate (15).

4. The gas proportional control valve for a water heater according to claim 1, characterized in that: An air intake connector is installed at the air intake port (5).

5. The gas proportional control valve for a water heater according to claim 1, characterized in that: A detachable side plate (16) is installed on one side of the valve body (1).

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