Wall-hanging stove control method and wall-hanging stove

Abstract

The invention discloses a wall-hanging stove control method which comprises a summer mode and a winter mode, and in the summer mode, the method comprises the following steps that 1, when a user uses bathing water, a valve body is in a bathing state; 2, after the user uses the bathing water, the valve body continues to be kept in the bathing state, and the water pump drives the water flow to conduct post-circulation for T1 time; 3, the valve body is switched to the heating state, and the valve body is switched back to the bathing state after T2 time; wherein T < 2lt >; t1. In the summer mode, after a user uses bathing water, the valve body is still kept in the bathing state, at the moment, the heating flow channel is kept closed, the bathing flow channel is kept open, and circulation is smooth after the water pump is used; due to the fact that the heating flow channel is closed, water flow cannot flow to the heating pipeline, water pressure of the inner pipeline cannot be increased, abnormal sound cannot be generated, and the phenomenon of shaft clamping caused by the fact that the valve body is not switched for a long time can be effectively avoided after bathing water is switched for a short time every time, and reliability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wall-mounted boilers, in particular to a control method for a wall-mounted boiler and the wall-mounted boiler. Background Art

[0002] A wall-mounted boiler generally includes a water pump, a main heat exchanger, a plate heat exchanger and a valve body. The valve body is provided with a motor to drive the valve body to switch between the heating state and the bathing state. The existing control logic of the wall-mounted boiler on the market is that in summer mode, after the user has used up the domestic hot water, the valve body switches to the heating state, and the water pump drives the hot water from the plate heat exchanger to the main heat exchanger and then to the plate heat exchanger for post-circulation, and finally drives the water to the heating pipeline (after the whole machine is burned and operated, the water pump will post-circulate, that is, it will continue to run for one or two minutes, the purpose is to transfer the heat as much as possible to prevent the heat exchanger from collecting too much heat and generating scale). However, in summer, since users do not need heating, the heating water outlet valve is in a closed state. At this time, the water flow driven by the water pump post-circulation cannot flow to the heating pipeline, causing the water pressure in the internal pipeline of the wall-mounted boiler to increase, causing impact, abnormal noise of the three-way motor, etc. In order to prevent water from flowing into the heating pipes, the prior art keeps the valve body in the bathing state after the user has finished using the bathing water. However, this will keep the valve body in the bathing state throughout the summer, which may easily cause the valve body to become stuck. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide a control method and a wall-mounted boiler that can avoid the increase of water pressure in the internal pipeline and avoid valve body axis jamming.

[0004] The control method of the wall-mounted boiler according to the first embodiment of the present invention includes a summer mode and a winter mode, and the summer mode includes the following steps:

[0005] Step 1: When the user uses bathing water, the valve body is in the bathing state;

[0006] Step 2: After the user has finished using the bathing water, the valve body continues to remain in the bathing state, and the water pump drives the water flow to circulate for a period of time T1;

[0007] Step 3, the valve body switches to the heating state, and then switches back to the bathing state after T2 time;

[0008] Among them, T2 <T1。

[0009] According to some embodiments of the present invention, in winter mode, the following steps are included:

[0010] Step S1, when the user uses bathing water, the valve body switches to a bathing state;

[0011] Step S2, after the user has finished using the bathing water, the valve body switches to the heating state, and the water pump circulates to drive the water to the heating pipeline.

[0012] According to some embodiments of the present invention, the value range of T1 is 1 to 2 minutes, and the value range of T2 is 1 to 5 seconds.

[0013] According to the wall-mounted boiler of the second aspect of the embodiment of the present invention, the control method of the wall-mounted boiler mentioned above is applied, including the valve body, a main channel is formed inside the valve body, a heating channel and a bathing channel respectively connected to the main channel are provided on the valve body, a switching shaft extending along its axial direction and movable and a sealing ring arranged on the switching shaft are provided in the main channel, and when the switching shaft moves, it can drive the sealing ring to selectively seal the heating channel and the bathing channel.

[0014] The control method of the wall-mounted boiler and the wall-mounted boiler according to the embodiment of the present invention have at least the following beneficial effects: in summer mode, after the user uses the bathing water, the valve body remains in the bathing state. At this time, the heating flow channel remains closed, the bathing flow channel remains open, and the water pump back-circulation is unobstructed; because the heating flow channel is closed, the water flow will not flow to the heating pipeline, the water pressure in the internal pipeline will not increase, and no abnormal noise will occur. After the back-circulation T1 time, the valve body switches to the heating state, at which time the heating flow channel is open and the bathing flow channel is closed. After a short T2 time, the valve body switches back to the bathing state, at which time the heating flow channel is closed and the bathing flow channel is open, waiting for the next user to use bathing water; after each bathing water use, a short switch can effectively avoid the phenomenon of the valve body not switching for a long time and causing the shaft to get stuck, thereby improving reliability.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is the structural diagram of the valve body and plate heat exchanger of the wall-mounted boiler;

[0018] Figure 2 This is a schematic diagram of the heat source cycle of a wall-mounted boiler. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention 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 present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated 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 should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including 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.

[0022] Reference Figure 1 to Figure 2 The present invention provides a control method for a wall-mounted boiler, including a summer mode and a winter mode, and the summer mode includes the following steps:

[0023] Step 1, when the user uses bathing water, the valve body 30 is in a bathing state;

[0024] Step 2: After the user has finished using the bathing water, the valve body 30 continues to remain in the bathing state, and the water pump 40 drives the water flow to perform a post-circulation for a time period of T1;

[0025] Step 3, the valve body 30 switches to the heating state, and then switches back to the bathing state after T2 time;

[0026] Among them, T2 <T1。

[0027] In winter mode, the following steps are included:

[0028] Step S1, when the user uses bathing water, the valve body 30 switches to the bathing state;

[0029] Step S2, after the user has finished using the bathing water, the valve body 30 switches to the heating state, and the water pump circulates to drive the water to flow to the heating pipeline.

[0030] That is, in summer mode, when the wall-mounted boiler is powered on, before the user uses the bathing water, the valve body 30 is already in the bathing state. After the user uses the bathing water, the valve body 30 remains in the bathing state. At this time, the heating flow channel remains closed, the bathing flow channel remains open, and the water pump 40 circulates smoothly. Since the heating flow channel is closed, the water will not flow to the heating pipeline, the water pressure in the internal pipeline will not increase, and no abnormal noise will occur. After the post-circulation T1 time, the valve body 30 switches to the heating state, at which time the heating flow channel is open and the bathing flow channel is closed. After a short T2 time, the valve body 30 switches back to the bathing state, at which time the heating flow channel is closed and the bathing flow channel is open, waiting for the next user to use the bathing water. After each bathing water use, a short switch can effectively avoid the phenomenon of the valve body 30 not switching for a long time and causing the shaft to get stuck, thereby improving reliability.

[0031] In some embodiments, the value range of T1 is 1 to 2 minutes. After the combustion operation of the whole machine is completed, the water pump will circulate, that is, it will continue to operate for one or two minutes. The purpose is to transfer the heat as much as possible to prevent the heat exchanger from collecting too much heat and generating scale.

[0032] In some embodiments, the value range of T2 is 1 to 5s; further, T2 is 3 to 5s; after a large number of sample tests, T2 is preferably 5s, at which time the amount of water flowing to the heating pipeline is small, which will not cause the internal pipe pressure to increase, and 5s is enough for the program, motor 60 and valve body 30 to react and switch reliably. After each bathing water is switched briefly, the valve body 30 can be effectively prevented from being stuck due to long-term non-switching, thereby improving reliability.

[0033] The present invention also protects a wall-mounted boiler, which uses the above-mentioned control method for the wall-mounted boiler. The wall-mounted boiler includes a valve body 30, a main channel 31 is formed inside the valve body 30, and the valve body 30 is provided with a heating flow channel and a bathing flow channel respectively connected to the main channel 31. The main channel 31 is provided with a switching shaft 310 extending and movable along its axial direction and a sealing ring arranged on the switching shaft 310. When the switching shaft 310 moves, it can drive the sealing ring to selectively seal the heating flow channel and the bathing flow channel.

[0034] like Figure 2The wall-mounted boiler includes a main heat exchanger 10, a plate heat exchanger 20 and a pump body 40. The valve body 30 is provided with a bathing water outlet 32 ​​and a first hot water inlet 33, a first hot water outlet 34 and a heating water outlet 35 respectively connected to the main channel 31. The plate heat exchanger 20 is provided with a cold water inlet 21, a second hot water inlet 22, a second hot water outlet 23 connected to the cold water inlet 21 and a warm water outlet 24 connected to the second hot water inlet 22. The warm water outlet 24 is connected to the water inlet of the main heat exchanger 10, the water outlet of the main heat exchanger 10 is connected to the first hot water inlet 33, the first hot water outlet 34 is connected to the second hot water inlet 22, and the second hot water outlet 23 is connected to the bathing water outlet 32; wherein the first hot water inlet 33 and the heating water outlet 35 form a heating flow channel, and the first hot water inlet 33, the first hot water outlet 34 and the bathing water outlet 32 ​​form a bathing flow channel. The sealing ring includes a first sealing ring 321 and a second sealing ring 322. When the switching shaft 310 moves, it can drive the sealing ring to selectively seal the heating water outlet 35 and the first hot water outlet 34. When the user uses a bath, the second sealing ring 322 seals the heating water outlet 35, and the hot water from the main heat exchanger 10 enters the main heat exchanger 10 through the first hot water inlet 33, the first hot water outlet 34, the second hot water inlet 22, and the warm water outlet 24 in sequence, thereby realizing a small bathing cycle. At the same time, the heat source performs heat exchange with the cold water coming from the cold water outlet in the plate heat exchanger 20, and the cold water becomes hot water and flows out through the second hot water outlet 23 and the bathing water outlet 32 ​​in sequence. When the user uses heating, the first sealing ring 321 seals the first hot water outlet 34, opens the heating water outlet 35, and the hot water flows out through the heating water outlet 35, thereby realizing indoor heating.

[0035] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0036] 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's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A control method for a wall-mounted boiler, including a summer mode and a winter mode, characterized in that: The summer mode includes the following steps: Step 1, when the user uses bathing water, the valve body (30) is in a bathing state; Step 2: After the user has finished using the bathing water, the valve body (30) continues to remain in the bathing state, and the water pump drives the water flow to perform a post-circulation for a time period of T1; Step 3, the valve body (30) switches to the heating state, and then switches back to the bathing state after T2 time; Among them, T2 <T1。 2. The control method of the wall-mounted boiler according to claim 1, characterized in that: In winter mode, the following steps are included: Step S1, when the user uses bathing water, the valve body (30) switches to a bathing state; Step S2, after the user has finished using the bathing water, the valve body (30) switches to the heating state, and the water pump circulates to drive the water to flow to the heating pipeline.

3. The control method of the wall-mounted boiler according to claim 1, characterized in that: The value range of T1 is 1 to 2 minutes, and the value range of T2 is 1 to 5 seconds.

4. A wall-mounted boiler, using the control method of the wall-mounted boiler according to any one of claims 1 to 3, characterized in that: The invention comprises a valve body (30), wherein a main channel (31) is formed inside the valve body (30), and a heating channel and a bathing channel respectively connected to the main channel (31) are provided on the valve body (30), and a switching shaft (310) extending in an axial direction and movable therein and a sealing ring provided on the switching shaft (310) are provided in the main channel (31), and when the switching shaft (310) moves, it can drive the sealing ring to selectively seal the heating channel and the bathing channel.

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