Gas distribution pipe and gas water heater

Abstract

The utility model provides a gas distribution pipe and a gas water heater, and relates to the technical field of water heaters. The gas distribution pipe comprises a fixed plate, a movable plate and a nozzle, a containing cavity is formed between the fixed plate and the movable plate, the movable plate can move to change the size of the containing cavity, so that the resistance of a gas flow channel is changed, the gas flow is changed, the load size is adjusted, the movable plate and the nozzle do not interfere, and the nozzle cannot be blocked when the movable plate moves. Load can be changed without changing the number of the nozzles, the problem of airflow offset is solved, vortex is avoided, abnormal sound of the gas distribution pipe is reduced, a high-precision valve port does not need to be arranged, control difficulty is lowered, reliability is improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and in particular to a gas distribution pipe and a gas water heater. Background Technology

[0002] Currently, gas water heaters on the market typically adjust the load by changing the number of nozzles on the distribution pipe. Changing the number of nozzles causes airflow bias, with air flowing only to one side of the distribution pipe. At higher airflow velocities, this can easily generate abnormal noise due to turbulence. To achieve low-load operation, existing technologies usually reduce the number of nozzles to a minimum, such as one, which further exacerbates the airflow bias problem; or they reduce the valve opening size to achieve low-load operation. However, smaller valve openings require higher control precision, increasing the difficulty of control. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of existing gas water heaters, such as airflow deviation, abnormal noise, and high power requirements of control valves caused by changing the number of nozzles in the gas distribution pipe, and to provide a gas distribution pipe and a gas water heater.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a gas distribution pipe, which includes a fixed plate, a movable plate and a nozzle. A receiving cavity is provided between the fixed plate and the movable plate. The movable plate can move to change the volume of the receiving cavity. The movable plate and the nozzle do not interfere with each other.

[0006] In this solution, the gas distribution pipe includes a fixed plate, a movable plate, and nozzles. A receiving cavity is provided between the fixed plate and the movable plate. The movable plate can move to change the volume of the receiving cavity, thereby changing the gas flow resistance and thus changing the gas flow rate, achieving load adjustment. The movable plate does not interfere with the nozzles, and the movable plate will not block the nozzles when moving. There is no need to change the number of nozzles to change the load, which solves the problem of airflow bias, avoids the generation of eddies, reduces abnormal noise in the gas distribution pipe, and eliminates the need for high-precision valve ports, reducing control difficulty and improving reliability and service life.

[0007] Preferably, the nozzle is disposed on the fixed plate, and the movable plate is capable of moving in directions close to and away from the fixed plate to change the volume of the receiving cavity.

[0008] In this design, by placing the nozzle on the fixed plate, the movable plate can move in directions close to and away from the fixed plate to change the volume of the receiving cavity, thereby altering the resistance of the gas flow through the gas distribution pipe and consequently changing the flow rate of the gas from the nozzle, thus adjusting the load. Placing the nozzle on the fixed plate also fixes its position, resulting in more stable gas output and more stable load regulation.

[0009] Preferably, the gas distribution pipe further includes a housing, the fixing plate is disposed on the housing, the housing includes a recess, and the movable plate is disposed on the recess to form the receiving cavity.

[0010] In this solution, the gas distribution pipe also includes a housing, a fixed plate is disposed on the housing, the housing includes a recess, and a movable plate is disposed on the recess to form a receiving cavity. The gas distribution pipe has a simple structure, which makes it easier to manufacture and install.

[0011] Preferably, the gas distribution pipe further includes a driving component capable of driving the movable plate to move.

[0012] In this design, the gas distribution pipe also includes a driving component, which drives the moving plate to move, thereby changing the volume of the receiving cavity.

[0013] Preferably, the driving element includes an electromagnetic coil and a permanent magnet, one of which is connected to the moving plate, and the electromagnetic coil and the permanent magnet are capable of providing magnetic forces that move them closer to each other and further away from each other.

[0014] In this solution, the driving component includes an electromagnetic coil and a permanent magnet. One of the electromagnetic coil and the permanent magnet is connected to the moving plate. The electromagnetic coil and the permanent magnet can provide magnetic forces that move closer to each other and further away from each other, so that the electromagnetic coil or the permanent magnet drives the moving plate to move through the magnetic force, thereby changing the volume of the receiving cavity.

[0015] Preferably, the gas distribution pipe further includes a connector, which is connected to the movable plate. The connector has a groove, and one of the electromagnetic coil and the permanent magnet is disposed in the groove.

[0016] In this solution, the gas distribution pipe also includes a connector, which is connected to the movable plate. The connector has a groove for placing one of the electromagnetic coil and the permanent magnet, so that the electromagnetic coil or the permanent magnet is more firmly connected to the connector, making the movement of the movable plate driven by the magnetic force more stable, and the gas load regulation more stable.

[0017] Preferably, the gas distribution pipe further includes an elastic element capable of providing elastic force along the moving direction of the movable plate;

[0018] The connecting seat also includes a protrusion, one end of the elastic element is connected to the protrusion, and the other end of the elastic element is connected to the fixing plate.

[0019] In this design, the gas distribution pipe also includes an elastic element that provides elastic force along the moving direction of the movable plate, thereby assisting the electromagnetic coil and permanent magnet in driving the movable plate. The connecting seat also includes a protrusion, with one end of the elastic element connected to the protrusion and the other end connected to the fixed plate. The protrusion facilitates the connection between the elastic element and the connecting seat, making the connection more stable, resulting in more stable movement of the movable plate and more stable gas load regulation.

[0020] Preferably, the plurality of driving components are respectively disposed at both ends of the movable plate.

[0021] In this solution, by setting drive components at both ends of the moving plate, the drive components can drive the moving plate to move at both ends, making the movement of the moving plate more stable and the gas load regulation more stable.

[0022] Preferably, the plurality of nozzles are spaced apart along a first direction, and the extending directions of the moving plate and the fixed plate are consistent with the first direction.

[0023] In this scheme, multiple nozzles are spaced apart along the first direction, and the extension directions of the moving plate and the fixed plate are consistent with the first direction, thereby making the gas distribution more uniform and further improving the stability of gas load regulation.

[0024] This utility model also provides a gas water heater, which includes the gas distribution pipe.

[0025] The positive and progressive effects of this utility model are as follows:

[0026] The gas distribution pipe includes a fixed plate, a movable plate, and nozzles. A receiving cavity is provided between the fixed plate and the movable plate. The movable plate can move to change the volume of the receiving cavity, thereby changing the gas flow resistance and thus changing the gas flow rate, realizing the adjustment of the load. The movable plate does not interfere with the nozzles, and the movable plate will not block the nozzles when it moves. There is no need to change the number of nozzles to change the load, which solves the problem of airflow bias, avoids the generation of eddies, reduces abnormal noise of the gas distribution pipe, and eliminates the need for high-precision valve ports, reducing control difficulty and improving reliability and service life. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a gas distribution pipe according to an embodiment of the present invention.

[0028] Figure 2This is a cross-sectional three-dimensional structural diagram of a gas distribution pipe according to an embodiment of the present invention.

[0029] Figure 3 This is a three-dimensional structural diagram of a movable plate according to an embodiment of the present invention.

[0030] Figure 4 This is a three-dimensional structural schematic diagram of a drive component according to an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] Gas distribution pipe 100

[0033] Casing 200

[0034] Fixed plate 210

[0035] Notch 220

[0036] Mobile board 300

[0037] Nozzle 400

[0038] 500-cubic-meter

[0039] Drive component 600

[0040] Electromagnetic coil 610

[0041] Permanent magnet 620

[0042] Connector 700

[0043] Groove 710

[0044] 720 protrusions

[0045] Elastic element 800

[0046] 900 air intake

[0047] First direction x Detailed Implementation

[0048] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0049] This embodiment provides a gas water heater, which includes a gas distribution pipe 100.

[0050] like Figures 1-4As shown, the gas distribution pipe 100 includes a fixed plate 210, a movable plate 300, an air inlet 900, and a nozzle 400. A receiving cavity 500 is provided between the fixed plate 210 and the movable plate 300. Gas enters the receiving cavity 500 from the air inlet 900 and then flows out from the nozzle 400. The movable plate 300 can move to change the volume of the receiving cavity 500, thereby changing the gas flow resistance and thus changing the gas flow rate, realizing the adjustment of the load. The movable plate 300 and the nozzle 400 do not interfere with each other. The movable plate 300 will not block the nozzle 400 when it moves. There is no need to change the number of nozzles 400 to change the load, which solves the problem of airflow bias, avoids the generation of eddies, reduces abnormal noise of the gas distribution pipe 100, and eliminates the need to set high-precision valve ports, reducing control difficulty and improving reliability and service life.

[0051] Under high load, the movable plate 300 moves to increase the volume of the receiving cavity 500, thereby increasing the gas flow rate and reducing the valve opening, which reduces the power requirement of the control valve and also reduces the airflow velocity. Under low load, the movable plate 300 moves to reduce the volume of the receiving cavity 500, which reduces the gas flow rate without reducing the number of nozzles 400, thus improving the airflow bias.

[0052] In this embodiment, the nozzle 400 is mounted on the fixed plate 210, and the movable plate 300 can move along directions close to and away from the fixed plate 210 to change the volume of the receiving cavity 500, thereby changing the resistance of the gas flow through the gas distribution pipe 100, and thus changing the flow rate of the gas from the nozzle 400, thereby adjusting the load. By mounting the nozzle 400 on the fixed plate 210, the position of the nozzle 400 is fixed, making the gas ejected from the nozzle 400 more stable and the load adjustment more stable.

[0053] In other embodiments, the nozzle 400 may be disposed on the movable plate 300, or on other structures of the non-movable plate 300 and the fixed plate 210. Those skilled in the art can select a suitable placement position for the nozzle 400 according to actual needs.

[0054] The gas distribution pipe 100 also includes a housing 200, a fixing plate 210 disposed on the housing 200, the housing 200 includes a recess 220, and a movable plate 300 is disposed on the recess 220 to form a receiving cavity 500. The gas distribution pipe 100 has a simple structure, which makes it easier to manufacture and install.

[0055] The gas distribution pipe 100 also includes a drive unit 600, which can drive the movable plate 300 to move, thereby changing the volume of the receiving cavity 500.

[0056] The driving component 600 includes an electromagnetic coil 610 and a permanent magnet 620. One of the electromagnetic coil 610 and the permanent magnet 620 is connected to the movable plate 300. The electromagnetic coil 610 and the permanent magnet 620 can provide magnetic forces that move closer to each other and further away from each other, so that the electromagnetic coil 610 or the permanent magnet 620 drives the movable plate 300 to move through the magnetic force, thereby changing the volume of the receiving cavity 500.

[0057] In this embodiment, the permanent magnet 620 is connected to the movable plate 300, and the electromagnetic coil 610 is fixed to other structures besides the movable plate 300. Thus, under the action of magnetic force, the permanent magnet 620 can drive the movable plate 300 to move. In other embodiments, the electromagnetic coil 610 can also be connected to the movable plate 300; those skilled in the art can choose according to actual needs.

[0058] The gas distribution pipe 100 also includes a connecting seat 700, which is connected to the movable plate 300. The connecting seat 700 is provided with a groove 710, and one of the electromagnetic coil 610 and the permanent magnet 620 is located in the groove 710, so that the electromagnetic coil 610 or the permanent magnet 620 is more firmly connected to the connecting seat 700, making the movement of the movable plate 300 driven by the magnetic force more stable, and the gas load regulation more stable.

[0059] The gas distribution pipe 100 also includes an elastic element 800, which provides elastic force along the moving direction of the movable plate 300, thereby assisting the electromagnetic coil 610 and the permanent magnet 620 in driving the movable plate 300. The connecting seat 700 also includes a protrusion 720, one end of the elastic element 800 is connected to the protrusion 720, and the other end of the elastic element 800 is connected to the fixed plate 210. By setting the protrusion 720, it is easier to connect the elastic element 800 and the connecting seat 700, making the connection between the elastic element 800 and the connecting seat 700 more stable, making the movement of the movable plate 300 more stable, and the gas load regulation more stable.

[0060] In this embodiment, the elastic element 800 is a pre-tensioned spring. The pre-tensioned spring provides a spring force that moves the movable plate 300 and the fixed plate 210 away from each other. Therefore, when the driving member 600 does not apply a force to bring the movable plate 300 and the fixed plate 210 closer together, the movable plate 300 can move away from the fixed plate 210, at which point the volume of the receiving cavity 500 is at its maximum. When the driving member 600 applies a force to bring the movable plate 300 and the fixed plate 210 closer together, the movable plate 300 and the fixed plate 210 move closer together, thereby reducing the volume of the receiving cavity 500.

[0061] In other embodiments, the elastic member 800 may also provide an elastic force that brings the movable plate 300 and the fixed plate 210 closer together, and the driving member 600 may apply a force that moves the movable plate 300 and the fixed plate 210 away from each other. Those skilled in the art can select the specific structure of the elastic member 800 and the driving member 600 according to actual needs.

[0062] Multiple driving components 600 are respectively disposed at both ends of the movable plate 300. By setting the driving components 600 at both ends of the movable plate 300, the driving components 600 can drive the movable plate 300 to move at both ends of the movable plate 300, making the movement of the movable plate 300 more stable and the gas load regulation more stable.

[0063] Multiple nozzles 400 are spaced apart along the first direction x, and the extension directions of the moving plate 300 and the fixed plate 210 are consistent with the first direction x, thereby making the gas distribution more uniform and further improving the stability of gas load regulation.

[0064] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0065] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A gas distribution pipe, characterized in that, The gas distribution pipe includes a fixed plate, a movable plate, and a nozzle. A receiving cavity is provided between the fixed plate and the movable plate. The movable plate can move to change the volume of the receiving cavity. The movable plate and the nozzle do not interfere with each other.

2. The gas distribution pipe as described in claim 1, characterized in that, The nozzle is disposed on the fixed plate, and the movable plate can move in directions close to and away from the fixed plate to change the volume of the receiving cavity.

3. The gas distribution pipe as described in claim 2, characterized in that, The gas distribution pipe also includes a housing, the fixed plate is disposed on the housing, the housing includes a recess, and the movable plate is disposed on the recess to form the receiving cavity.

4. The gas distribution pipe as described in claim 1, characterized in that, The gas distribution pipe also includes a drive component, which is capable of driving the movable plate to move.

5. The gas distribution pipe as described in claim 4, characterized in that, The driving component includes an electromagnetic coil and a permanent magnet, one of which is connected to the moving plate. The electromagnetic coil and the permanent magnet are capable of providing magnetic forces that bring them closer together and move them further apart.

6. The gas distribution pipe as described in claim 5, characterized in that, The gas distribution pipe also includes a connector, which is connected to the movable plate. The connector has a groove, and one of the electromagnetic coil and the permanent magnet is located in the groove.

7. The gas distribution pipe as described in claim 6, characterized in that, The gas distribution pipe also includes an elastic element that can provide elastic force along the moving direction of the moving plate; The connecting seat also includes a protrusion, one end of the elastic element is connected to the protrusion, and the other end of the elastic element is connected to the fixing plate.

8. The gas distribution pipe as described in claim 4, characterized in that, The plurality of driving components are respectively disposed at both ends of the movable plate.

9. The gas distribution pipe as described in claim 1, characterized in that, The plurality of nozzles are spaced apart along a first direction, and the extending directions of the moving plate and the fixed plate are consistent with the first direction.

10. A gas water heater, characterized in that, The gas water heater includes a gas distribution pipe as described in any one of claims 1-9.

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