Flow adjusting device and water heater

Abstract

According to the flow adjusting device and the water heater, the first flow channel passes through the flow stabilizing valve, the opening and closing valve can open or close the second flow channel, when the water heater is in a normal working state, the opening and closing valve closes the first flow channel, fluid only passes through the second flow channel, and the flow stabilizing valve plays a role in stabilizing the flow of all the fluid; when the water heater is in a pressurizing or circulating state, the opening and closing valve is opened, fluid passes through the first flow channel and the second flow channel at the same time, and the flow stabilizing valve only stabilizes the fluid passing through the second flow channel, so that the fluid passing through the flow stabilizing valve is still maintained to be close to the flow demand. And the flow stabilizing valve is prevented from increasing pipeline resistance, generating noise, reducing circulating flow and increasing the pressurizing effect.

Description

Technical Field

[0001] The utility model relates to the field of water heaters, in particular to a flow regulating device and a water heater. Background Art

[0002] When the gas water heater is in normal working condition, a flow stabilizing valve needs to be installed on the output water path to reduce flow fluctuations and limit the maximum flow, so as to stabilize the fluid volume and water temperature at the user end to ensure the user experience. However, under the pressurization and circulation state, the flow stabilizing valve will increase pipeline resistance, generate noise, reduce circulation flow and pressurization effect. The existing technology fails to achieve the state in which the fluid passing through the flow stabilizing valve remains close to normal under the pressurization and circulation state, so as to avoid the flow stabilizing valve increasing pipeline resistance, generating noise, reducing circulation flow and pressurization effect. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect of the prior art that the fluid passing through the flow regulating valve is unable to maintain a nearly normal state under the pressure-increasing and circulating state, and to provide a flow regulating device and a water heater.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A flow regulating device includes a flow stabilizing valve; the flow regulating device also includes a first flow channel, a second flow channel, and an opening and closing valve, the first flow channel passes through the flow stabilizing valve, and the opening and closing valve can open or close the second flow channel.

[0006] In the present technical solution, by setting the first flow channel to pass through the flow stabilizing valve, the opening and closing valve can open or close the second flow channel. When the flow demand is small, the opening and closing valve can close the second flow channel, and the fluid only passes through the first flow channel, and the flow stabilizing valve has a flow stabilizing effect on all the fluids; when the flow demand is large, the opening and closing valve is opened, and the fluid passes through the first flow channel and the second flow channel at the same time, and the flow stabilizing valve only has a flow stabilizing effect on the fluid passing through the first flow channel, so that the fluid passing through the flow stabilizing valve is still maintained close to the flow demand when it is small, thereby avoiding the flow stabilizing valve increasing the pipeline resistance, generating noise, and reducing the circulation flow and pressurization effect.

[0007] Preferably, the second flow channel includes a cylindrical first communicating portion, and the first flow channel includes an annular portion, and the annular portion surrounds the first communicating portion.

[0008] In the present technical solution, by arranging the second flow channel to include a cylindrical first connecting portion, the first flow channel to include an annular portion, and the annular portion surrounding the first connecting portion, the integration of the flow regulating device can be improved with a relatively simple structure.

[0009] Preferably, the flow regulating device also includes a sealing plug, which separates the annular portion and the first connecting portion to form a diversion chamber, and the sealing plug is provided with a first channel respectively connecting the first connecting portion and the diversion chamber and a second channel respectively connecting the annular portion and the diversion chamber, and the opening and closing valve can open or close the first channel.

[0010] In the present technical solution, a sealing plug is provided to separate the first silencer chamber and the connecting part to form a diversion chamber, and a first channel and a second channel are provided on the sealing plug. Part of the fluid flowing through the first silencer chamber flows into the diversion chamber through the second channel, and then flows into the connecting part from the first channel. An opening and closing valve is provided to open or close the first channel, thereby achieving fluid buffering with a relatively simple structure.

[0011] Preferably, the on-off valve further includes a movable portion, and the movable portion is capable of opening or closing the first channel.

[0012] In the present technical solution, by providing a movable part capable of opening or closing the first channel, the fluid passing through the flow stabilizing valve can be maintained at a level close to that when the flow demand is relatively small with a relatively simple structure.

[0013] Preferably, the first channel is located at the center of the sealing plug, and the two second channels are symmetrically distributed relative to the first channel.

[0014] In this technical solution, by arranging the first channel at the center of the sealing plug and the two second channels being symmetrically distributed relative to the first channel, the fluid entering the diversion cavity and the connecting part can be evenly distributed, avoiding the local concentrated distribution of the fluid to generate noise.

[0015] Preferably, the flow regulating device comprises a first inner wall and a second inner wall, the second flow channel comprises a second connecting portion, and the first flow channel comprises a third connecting portion;

[0016] One end of the second communicating portion is connected to the first communicating portion, and the first inner wall separates the second communicating portion and the annular portion;

[0017] One end of the third communicating portion is connected to the annular portion, the other end of the third communicating portion is connected to the steady flow valve, and the second inner wall separates the second communicating portion from the third communicating portion.

[0018] In the present technical solution, the second flow channel includes a second connecting part, and the first flow channel includes a third connecting part; one end of the second connecting part is connected to the first connecting part, and the first inner wall separates the second connecting part and the annular part; one end of the third connecting part is connected to the annular part, the other end of the third connecting part is connected to the flow stabilizing valve, and the second inner wall separates the second connecting part and the third connecting part; the integration of the flow regulating device can be improved with a relatively simple structure.

[0019] Preferably, the flow stabilizing valve comprises a pressure plate and a base, the pressure plate is provided with a first magnet, the base is provided with a second magnet, and a fluid gap is provided between the pressure plate and the base.

[0020] In the present technical solution, by setting up a flow stabilizing valve with the structure as above, the first magnet and the second magnet repel each other through the magnetic field; the pressure plate faces the direction of the fluid, and when the pressure of the fluid flowing through the flow stabilizing valve increases, the pressure plate moves toward the base, so that the fluid gap is reduced and the flow rate becomes smaller, thereby playing a flow stabilizing role with a relatively simple structure.

[0021] Preferably, the first magnet is a permanent magnet; and / or,

[0022] The second magnet is a permanent magnet or a coil.

[0023] In the technical solution, by setting the first magnet as a permanent magnet and the second magnet as a permanent magnet, the structural stability of the flow control valve can be improved. By setting the first magnet as a permanent magnet and the second magnet as a coil, the magnitude of the repulsive force between the first magnet and the second magnet can be conveniently controlled.

[0024] Preferably, the second flow channel passes by the side of the steady flow valve, and the fluid in the first flow channel and the fluid in the second flow channel converge at a side of the steady flow valve away from a direction of the fluid.

[0025] In this technical solution, by setting a second flow channel passing by the side of the flow stabilizing valve, the fluid in the first flow channel and the fluid in the second flow channel converge on the side of the flow stabilizing valve away from the direction of the fluid, thereby improving the integration of the flow regulating device with a relatively simple structure.

[0026] A water heater comprises the flow regulating device as described above, wherein the flow regulating device is located at the water outlet of the water pump of the water heater.

[0027] In the present technical solution, by providing a water heater and setting the above structure, when the water heater is in normal working state, the opening and closing valve closes the first flow channel, and the fluid only passes through the second flow channel, and the flow stabilizing valve plays a flow stabilizing role for all the fluids; when the water heater is in a pressurized or circulating state, the opening and closing valve is opened, and the fluid passes through the first flow channel and the second flow channel at the same time, and the flow stabilizing valve only plays a flow stabilizing role for the fluid passing through the second flow channel, so that the fluid passing through the flow stabilizing valve is still maintained close to the flow demand is small, thereby avoiding the flow stabilizing valve increasing the pipeline resistance, generating noise, reducing the circulation flow and the pressurization effect.

[0028] The positive and progressive effects of the utility model are:

[0029] By providing a flow regulating device and a water heater, a first flow channel is arranged to pass through a flow stabilizing valve, and the opening and closing valve can open or close the second flow channel. When the water heater is in a normal working state, the opening and closing valve can close the first flow channel, and the fluid only passes through the second flow channel, and the flow stabilizing valve has a flow stabilizing effect on all the fluids; when the water heater is in a pressurized or circulating state, the opening and closing valve is opened, and the fluid passes through the first flow channel and the second flow channel at the same time, and the flow stabilizing valve only has a flow stabilizing effect on the fluid passing through the second flow channel, so that the fluid passing through the flow stabilizing valve is still maintained close to the flow demand when it is small, thereby avoiding the flow stabilizing valve increasing the pipeline resistance, generating noise, and reducing the circulation flow and pressurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the longitudinal section structure of the flow regulating device of Example 1 of the utility model.

[0031] Figure 2 This is a schematic cross-sectional structure diagram of the flow regulating device of Example 1 of the utility model.

[0032] Figure 3 This is a schematic diagram of the structure of the flow stabilizing valve of Example 1 of the utility model.

[0033] Figure 4 This is a schematic diagram of the structure of the flow stabilizing valve of Example 2 of the utility model.

[0034] Description of reference numerals:

[0035] First inner wall 01

[0036] Second inner wall 02

[0037] Diversion cavity 03

[0038] Ring portion 11

[0039] The third connecting portion 12

[0040] The first communication portion 21

[0041] The second communication portion 22

[0042] Open and close valve 5

[0043] Putter 511

[0044] Core 512

[0045] Driving coil 521

[0046] Return spring 522

[0047] Sealing plug 6

[0048] First channel 61

[0049] Second hole 62

[0050] Flow control valve 8

[0051] Fluid gap 81

[0052] Base 82

[0053] The second magnet 821

[0054] Pressure plate 83

[0055] The first magnet 831 DETAILED DESCRIPTION

[0056] Two preferred embodiments are given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0057] Example 1

[0058] like Figure 1-Figure 3 As shown, this embodiment provides a flow regulating device, which includes a flow stabilizing valve 8; the flow regulating device also includes a first flow channel, a second flow channel, and an opening and closing valve 5. The first flow channel passes through the flow stabilizing valve 8, and the opening and closing valve 5 can open or close the second flow channel.

[0059] In this way, by setting the first flow channel to pass through the flow stabilizing valve 8, the opening and closing valve 5 can open or close the second flow channel. When the flow demand is small, the opening and closing valve 5 can close the second flow channel, and the fluid only passes through the first flow channel. The flow stabilizing valve 8 has a flow stabilizing effect on all the fluids; when the flow demand is large, the opening and closing valve 5 is opened, and the fluid passes through the first flow channel and the second flow channel at the same time. The flow stabilizing valve 8 only has a flow stabilizing effect on the fluid passing through the first flow channel, so that the fluid passing through the flow stabilizing valve 8 is still maintained close to the flow demand is small, avoiding the flow stabilizing valve 8 to increase the pipeline resistance, generate noise, reduce the circulation flow and the boosting effect.

[0060] In this embodiment, the second flow channel includes a cylindrical first communicating portion 21 , and the first flow channel includes an annular portion 11 , and the annular portion 11 surrounds the first communicating portion 21 .

[0061] In this way, by arranging the second flow channel to include the cylindrical first connecting portion 21, the first flow channel to include the annular portion 11, and the annular portion 11 surrounding the first connecting portion 21, the integration of the flow regulating device can be improved with a relatively simple structure.

[0062] In this embodiment, the flow regulating device also includes a sealing plug 6, which separates the annular portion 11 and the first connecting portion 21 to form a diversion chamber 03. The sealing plug 6 is provided with a first channel 61 respectively connecting the first connecting portion 21 and the diversion chamber 03 and a second channel 62 respectively connecting the annular portion 11 and the diversion chamber 03. The opening and closing valve 5 can open or close the first channel 61.

[0063] In this way, by setting a sealing plug 6 that separates the first silencing chamber and the connecting part to form a diversion chamber 03, and setting a first channel 61 and a second channel 62 on the sealing plug 6, part of the fluid flowing through the first silencing chamber flows into the diversion chamber 03 through the second channel 62, and then flows into the connecting part from the first channel 61, and an opening and closing valve 5 is set to open or close the first channel 61, thereby achieving fluid buffering with a relatively simple structure.

[0064] In this embodiment, the on-off valve 5 further includes a movable portion, and the movable portion can open or close the first channel 61 .

[0065] In this way, by setting a movable part capable of opening or closing the first channel 61, the fluid passing through the flow-stabilizing valve 8 can be maintained at a level close to that when the flow demand is small with a relatively simple structure. Specifically, in the present embodiment, the movable part includes a push rod 511 and an iron core 512, and the on-off valve 5 also includes a driving coil 521 and a reset spring 522. When the driving coil 521 is energized, the driving coil 521 pushes the iron core 512 and the push rod 511 connected thereto toward the first channel 61 by electromagnetic force until the first channel 61 is closed; when the driving coil 521 is de-energized, the reset spring 522 pushes the iron core 512 and the push rod 511 connected thereto by elastic force away from the first channel 61, thereby opening the first channel 61. Of course, in other embodiments, the on-off valve 5 can also be set to other structures capable of opening or closing the first channel 61.

[0066] In this embodiment, the first hole 61 is located at the center of the sealing plug 6 , and the two second holes 62 are symmetrically distributed relative to the first hole 61 .

[0067] In this way, by setting the first channel 61 at the center of the sealing plug 6 and the two second channels 62 being symmetrically distributed relative to the first channel 61, the fluid entering the diversion cavity 03 and the connecting part can be evenly distributed, avoiding the local concentrated distribution of the fluid to generate noise.

[0068] In this embodiment, the flow regulating device includes a first inner wall 01 and a second inner wall 02, the second flow channel includes a second connecting portion 22, and the first flow channel includes a third connecting portion 12;

[0069] One end of the second communicating portion 22 is connected to the first communicating portion 21, and the first inner wall 01 separates the second communicating portion 22 and the annular portion 11;

[0070] One end of the third communicating portion 12 is connected to the annular portion 11 , and the other end of the third communicating portion 12 is connected to the steady flow valve 8 . The second inner wall 02 separates the second communicating portion 22 and the third communicating portion 12 .

[0071] In this way, by setting the second flow channel including the second connecting part 22, the first flow channel includes the third connecting part 12; one end of the second connecting part 22 is connected to the first connecting part 21, and the first inner wall 01 separates the second connecting part 22 and the annular part 11; one end of the third connecting part 12 is connected to the annular part 11, and the other end of the third connecting part 12 is connected to the steady flow valve 8, and the second inner wall 02 separates the second connecting part 22 and the third connecting part 12; the integration of the flow regulating device can be improved with a relatively simple structure.

[0072] In this embodiment, the flow stabilizing valve 8 includes a pressure plate 83 and a base 82 . The pressure plate 83 is provided with a first magnet 831 , the base 82 is provided with a second magnet 821 , and a fluid gap 81 is provided between the pressure plate 83 and the base 82 .

[0073] In this way, by setting up a flow stabilizing valve 8 with the structure as above, the first magnet 831 and the second magnet 821 repel each other through the magnetic field; the pressure plate 83 faces the direction of the fluid, and when the pressure of the fluid flowing through the flow stabilizing valve 8 increases, the pressure plate 83 moves toward the base 82, so that the fluid gap 81 is reduced and the flow rate becomes smaller, thereby playing a flow stabilizing role with a relatively simple structure.

[0074] In this embodiment, the first magnet 831 and the second magnet 821 are both permanent magnets.

[0075] In this way, by setting the first magnet 831 as a permanent magnet and the second magnet 821 as a permanent magnet, the structural stability of the flow regulating valve 8 can be improved.

[0076] In this embodiment, the second flow channel passes by the side of the steady flow valve 8, and the fluid in the first flow channel and the fluid in the second flow channel converge at the side of the steady flow valve 8 away from the direction of the fluid.

[0077] In this way, by setting the second flow channel passing by the side of the steady flow valve 8, the fluid in the first flow channel and the fluid in the second flow channel converge on the side of the steady flow valve 8 away from the direction of the fluid, the integration of the flow regulating device can be improved with a relatively simple structure.

[0078] This embodiment also provides a water heater (not shown in the figure), which includes a flow regulating device as described above, and the flow regulating device is located at the water outlet of the water pump of the water heater.

[0079] In this way, by providing a water heater and setting up the above structure, when the water heater is in a normal working state, the opening and closing valve 5 closes the first flow channel, and the fluid only passes through the second flow channel, and the flow stabilizing valve 8 has a flow stabilizing effect on all the fluids; when the water heater is in a pressurized or circulating state, the opening and closing valve 5 is opened, and the fluid passes through the first flow channel and the second flow channel at the same time, and the flow stabilizing valve 8 only has a flow stabilizing effect on the fluid passing through the second flow channel, so that the fluid passing through the flow stabilizing valve 8 is still maintained close to the flow demand is small, thereby avoiding the flow stabilizing valve 8 increasing the pipeline resistance, generating noise, reducing the circulation flow and the pressurization effect.

[0080] Example 2

[0081] like Figure 4 As shown, this embodiment also provides a flow regulating device, and its structure is substantially the same as that of the flow regulating device in Embodiment 1. The difference is that in this embodiment, the first magnet 831 is a permanent magnet, and the second magnet 821 is a coil. In this way, the magnitude of the repulsive force between the first magnet 831 and the second magnet 821 can be conveniently controlled.

[0082] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A flow regulating device, comprising a flow regulating valve; characterized in that: The flow regulating device further includes a first flow channel, a second flow channel, and an opening and closing valve. The first flow channel passes through the flow stabilizing valve, and the opening and closing valve can open or close the second flow channel.

2. The flow regulating device according to claim 1, characterized in that: The second flow channel includes a cylindrical first communication portion, and the first flow channel includes an annular portion surrounding the first communication portion.

3. The flow regulating device according to claim 2, characterized in that: The flow regulating device also includes a sealing plug, which separates the annular portion and the first connecting portion to form a diversion chamber. The sealing plug is provided with a first channel respectively connecting the first connecting portion and the diversion chamber and a second channel respectively connecting the annular portion and the diversion chamber. The opening and closing valve can open or close the first channel.

4. The flow regulating device according to claim 3, characterized in that: The on-off valve further includes a movable portion, and the movable portion is capable of opening or closing the first channel.

5. The flow regulating device according to claim 3, characterized in that: The first hole is located at the center of the sealing plug, and the two second holes are symmetrically distributed relative to the first hole.

6. The flow regulating device according to claim 2, characterized in that: The flow regulating device comprises a first inner wall and a second inner wall, the second flow channel comprises a second connecting portion, and the first flow channel comprises a third connecting portion; One end of the second communicating portion is connected to the first communicating portion, and the first inner wall separates the second communicating portion and the annular portion; One end of the third communicating portion is connected to the annular portion, the other end of the third communicating portion is connected to the steady flow valve, and the second inner wall separates the second communicating portion from the third communicating portion.

7. The flow regulating device according to claim 1, characterized in that: The flow stabilizing valve comprises a pressure plate and a base. The pressure plate is provided with a first magnet, the base is provided with a second magnet, and a fluid gap is provided between the pressure plate and the base.

8. The flow regulating device according to claim 7, characterized in that: The first magnet is a permanent magnet; and / or, The second magnet is a permanent magnet or a coil.

9. The flow regulating device according to claim 1, characterized in that: The second flow channel passes by the side of the steady flow valve, and the fluid in the first flow channel and the fluid in the second flow channel converge at a side of the steady flow valve away from a direction of the fluid.

10. A water heater, characterized in that: It comprises a flow regulating device as described in any one of claims 1 to 9, wherein the flow regulating device is located at the water outlet of the water pump of the water heater.

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