Water heater gas distribution pipe structure capable of realizing multi-state combustion

Abstract

The utility model discloses a water heater gas distribution pipe structure capable of achieving multi-state combustion. The water heater gas distribution pipe structure comprises a plurality of gas distribution chambers connected with a proportional valve of a gas inlet header pipe through gas pipes. All the gas distribution chambers are arranged along a straight line to form a flush top, and a plurality of gas outlets arranged along a straight line are formed in the side surface close to the top and belong to different gas distribution chambers respectively; all the gas distribution chambers comprise at least one secondary gas distribution chamber; the gas inlet of the second-stage gas distribution chamber is connected with another adjacent gas distribution chamber through a pipeline with a parallel structure and a proportional valve; and a secondary control valve is arranged on a branch for inputting the fuel gas into the secondary fuel gas distribution chamber in the pipeline of the parallel structure. The gas distribution device of the gas water heater can solve the problems that a gas distribution device of the gas water heater is few in gear and the installation space of a control valve used for controlling inside is small.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heater manufacturing, in particular to a water heater gas distribution pipe structure capable of realizing multi-state combustion. Background Art

[0002] In existing gas water heaters, a gas distribution device with various control valves is usually used to distribute the gas. The conventional structure is usually that the gas inlet main is connected to the proportional valve, and then the proportional valve is set with the same number of pipelines and control valves according to the number of gas distribution chambers of the gas distribution device, and the gas is distributed into gas distribution chambers with completely different volumes and gas outlet numbers. Different gas outputs are formed by controlling the opening and closing of different numbers of gas distribution chambers.

[0003] However, due to the one-to-one correspondence between the control valve and the gas distribution chamber in the prior art, all the control valves are installed side by side at the same position. Since the volumes of different gas distribution chambers are different, it is always difficult to install the control valve for the gas distribution chamber with a smaller volume.

[0004] Moreover, in the prior art, the gas distribution device usually only adopts a structure of two gas distribution chambers with a volume and gas outlet quantity ratio of 1:2. By opening one or both at the same time, three gears of small, medium and large are formed. If it is necessary to meet the temperature difference between the lowest temperature and the highest temperature in a year, it is necessary to adjust it through a proportional valve, which requires enhancing the function of the proportional valve, increasing manufacturing costs, and also resulting in gas waste.

[0005] Therefore, how to solve the problem that the gas distribution device of the gas water heater has fewer gears and the internal control valve installation space is tight has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0006] In view of the above-mentioned defects of the prior art, the utility model provides a water heater gas distribution pipe structure that can realize multi-state combustion, the purpose of which is to solve the problem that the gas distribution device of the gas water heater has fewer gears and the installation space of the control valve used for internal control is tight.

[0007] To achieve the above-mentioned purpose, the utility model discloses a gas distribution pipe structure for a water heater capable of realizing multi-state combustion, comprising a plurality of gas distribution chambers connected to a proportional valve of an air intake main pipe through a gas pipe; all the gas distribution chambers are arranged in a straight line to form a flush top, and a plurality of gas outlets arranged in a straight line are provided on the side close to the top, and the plurality of gas outlets belong to different gas distribution chambers respectively; the characteristic is that all the gas distribution chambers include at least one secondary gas distribution chamber;

[0008] The gas inlet of the secondary gas distribution chamber is connected to the proportional valve through a pipeline of a parallel structure with another adjacent gas distribution chamber;

[0009] Furthermore, a secondary control valve is provided on the branch line of the parallel structure pipeline that inputs the gas into the secondary gas distribution chamber.

[0010] Preferably, each of the gas pipes through which the proportional valve outputs gas is provided with a primary control valve;

[0011] The corresponding primary control valve is arranged on the main pipe connected to the proportional valve in the pipeline of the parallel structure.

[0012] More preferably, the height of the inner cavity of each of the secondary gas distribution chambers is smaller than that of the other gas distribution chambers, and the corresponding secondary control valve mounting seats arranged near the bottom for mounting the secondary control valve are located above the primary control valve mounting seats of all the primary control valves.

[0013] More preferably, each of the secondary control valves and each of the primary control valves are solenoid valves.

[0014] Preferably, it comprises a gas distribution chamber with 12 gas outlets, a gas distribution chamber with 3 gas outlets, and a secondary gas distribution chamber with 3 gas outlets;

[0015] The secondary gas distribution chamber is adjacent to the gas distribution chamber with the three gas outlets, and is connected to the proportional valve through a pipeline of a parallel structure;

[0016] By controlling the primary control valve of the two gas distribution chambers and the opening and closing of the secondary control valve of the secondary gas distribution chamber, 3 gas outlets, 6 gas outlets, 12 gas outlets, 15 gas outlets or 18 gas outlets can be formed.

[0017] Beneficial effects of the utility model:

[0018] The utility model can solve the problems that the gas distribution device of the gas water heater has fewer gears and the installation space of the control valve used for control inside is tight.

[0019] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural schematic diagram showing one side of a primary control valve and a secondary control valve in one embodiment of the utility model is shown.

[0021] Figure 2 A structural schematic diagram showing one side of an embodiment of the utility model in which a primary control valve, a secondary control valve and a proportional valve are arranged.

[0022] Figure 3 A schematic diagram showing the gas outlet states of three gas outlets in one embodiment of the utility model.

[0023] Figure 4 A schematic diagram showing the gas outlet states of six gas outlets in one embodiment of the utility model.

[0024] Figure 5 A schematic diagram showing the gas outlet states of 12 gas outlets in one embodiment of the utility model.

[0025] Figure 6 A schematic diagram showing the gas outlet states of 18 gas outlets in one embodiment of the utility model. DETAILED DESCRIPTION

[0026] Example

[0027] like Figure 1 and Figure 2 As shown, a gas distribution pipe structure of a water heater capable of realizing multi-state combustion includes a plurality of gas distribution chambers 2 connected to a proportional valve 1 of an air intake main pipe through a gas pipe; all gas distribution chambers 2 are arranged in a straight line to form a flush top, and a plurality of gas outlets 3 arranged in a straight line are provided on the side near the top, and the plurality of gas outlets 3 belong to different gas distribution chambers 2 respectively; it is characterized in that all gas distribution chambers 2 include at least one secondary gas distribution chamber 21;

[0028] The gas inlet of the secondary gas distribution chamber 21 is connected to the proportional valve 1 through a pipeline of a parallel structure with another adjacent gas distribution chamber 2;

[0029] Furthermore, a secondary control valve 4 is provided on the branch line for inputting the gas into the secondary gas distribution chamber 21 in the parallel structure pipeline.

[0030] In some embodiments, each gas pipe through which the proportional valve 1 outputs gas is provided with a primary control valve 5;

[0031] A corresponding primary control valve 5 is provided on the main pipe connected to the proportional valve 1 in the pipeline of the parallel structure.

[0032] The present invention can separately set the corresponding secondary control valve 4 and the primary control valve 5 of the remaining gas distribution chambers 2 at different positions by setting the secondary gas distribution chamber 21, thereby improving the distribution capacity without enhancing the function of the proportional valve 1.

[0033] In some embodiments, the height of the inner cavity of each secondary gas distribution chamber 21 is smaller than that of the other gas distribution chambers 2, and the corresponding secondary control valve mounting seats 41 arranged near the bottom for installing the secondary control valve 4 are located above the primary control valve mounting seats 51 of all the primary control valves 5.

[0034] In some embodiments, each secondary control valve 4 and each primary control valve 5 are solenoid valves.

[0035] like Figures 3 to 6 As shown, in some embodiments, a gas distribution chamber 2 with 12 gas outlets 3, a gas distribution chamber 2 with 3 gas outlets 3, and a secondary gas distribution chamber 21 with 3 gas outlets 3 are included;

[0036] The secondary gas distribution chamber 21 is adjacent to the gas distribution chamber 2 with three gas outlets 3, and is connected to the proportional valve 1 through a pipeline of a parallel structure;

[0037] By controlling the primary control valve 5 of the two gas distribution chambers 2 and the opening and closing of the secondary control valve 4 of the secondary gas distribution chamber 21, 3 gas outlets 3 for gas outlets, 6 gas outlets 3 for gas outlets, 12 gas outlets 3 for gas outlets, 15 gas outlets 3 for gas outlets or 18 gas outlets 3 for gas outlets can be formed.

[0038] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A gas distribution pipe structure for a water heater capable of realizing multi-state combustion, comprising a plurality of gas distribution chambers (2) connected to a proportional valve (1) of an air intake main pipe through a gas pipe; all the gas distribution chambers (2) are arranged in a straight line to form a flush top, and a plurality of gas outlets (3) arranged in a straight line are provided on the side close to the top, and the plurality of gas outlets (3) belong to different gas distribution chambers (2); characterized in that: All of the gas distribution chambers (2) include at least one secondary gas distribution chamber (21); The gas inlet of the secondary gas distribution chamber (21) is connected to the proportional valve (1) through a pipeline of a parallel structure with another adjacent gas distribution chamber (2); Furthermore, a secondary control valve (4) is provided on the branch line of the parallel structure pipeline that inputs the gas into the secondary gas distribution chamber (21).

2. The water heater gas distribution pipe structure capable of realizing multi-state combustion according to claim 1, characterized in that: Each of the gas pipes through which the proportional valve (1) outputs gas is provided with a primary control valve (5); The corresponding primary control valve (5) is provided on the main pipe connected to the proportional valve (1) in the pipeline of the parallel structure.

3. The water heater gas distribution pipe structure capable of realizing multi-state combustion according to claim 2, characterized in that: The height of the inner cavity of each of the secondary gas distribution chambers (21) is smaller than that of the other gas distribution chambers (2), and the corresponding secondary control valve mounting seats (41) arranged near the bottom for mounting the secondary control valve (4) are located above the primary control valve mounting seats (51) of all the primary control valves (5).

4. The water heater gas distribution pipe structure capable of realizing multi-state combustion according to claim 2 or 3, characterized in that: Each of the secondary control valves (4) and each of the primary control valves (5) is a solenoid valve.

5. The water heater gas distribution pipe structure capable of realizing multi-state combustion according to claim 1, characterized in that: It comprises a gas distribution chamber (2) with 12 gas outlets (3), a gas distribution chamber (2) with 3 gas outlets (3), and a secondary gas distribution chamber (21) with 3 gas outlets (3); The secondary gas distribution chamber (21) is adjacent to the gas distribution chamber (2) having the three gas outlets (3), and is connected to the proportional valve (1) via a pipeline in a parallel structure; By controlling the primary control valves (5) of the two gas distribution chambers (2) and the opening and closing of the secondary control valve (4) of the secondary gas distribution chamber (21), gas outlets (3) can be formed at three gas outlets (3), six gas outlets (3), twelve gas outlets (3), fifteen gas outlets (3) or eighteen gas outlets (3).

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