CN217685901U - Water heater - Google Patents
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- CN217685901U CN217685901U CN202221917077.1U CN202221917077U CN217685901U CN 217685901 U CN217685901 U CN 217685901U CN 202221917077 U CN202221917077 U CN 202221917077U CN 217685901 U CN217685901 U CN 217685901U
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Abstract
The utility model provides a water heater, which comprises a heat exchanger, a water outlet pipe, a water inlet pipe, a bidirectional circulating pump, a switch valve and a controller; the water outlet end of the heat exchanger is connected with one end of the water outlet pipe, the water inlet end of the heat exchanger is connected with one end of the water inlet pipe, and the other end of the water outlet pipe is connected with the other end of the water inlet pipe through the bidirectional circulating pump and the switch valve to form a circulating pipeline; the heat exchanger is electrically connected with the controller; the controller is respectively electrically connected with the bidirectional circulating pump and the switch valve and is used for controlling the bidirectional circulating pump to run in the forward direction or the reverse direction and the switch valve to be switched on or switched off. The water at the water inlet end of the water outlet pipe and the water at the water inlet end of the heat exchanger are preheated through the bidirectional circulating pump and the switch valve, so that the energy waste is reduced while the water demand of a user is met.
Description
Technical Field
The utility model relates to a domestic hot water field, in particular to water heater.
Background
With the development of science and technology, the requirements of people on the quality of life are higher and higher. People are using the in-process of water heater, when just starting, can not in time rise temperature when cold water passes through the water heater, lead to the shortcoming of transient cold water to appear in the middle of the hot water, have influenced user's water use greatly and have experienced.
In the prior art, part of the water heaters with the preheating function need to preheat water for all pipelines, on one hand, when a user needs to produce cold water, the pipelines can only provide hot water, and on the other hand, energy waste can be caused by preheating water for all the pipelines.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a water heater in order to overcome the defect of untimely and energy waste of intensification among the prior art.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a water heater comprises a heat exchanger, a water outlet pipe, a water inlet pipe, a bidirectional circulating pump, a switch valve and a controller;
the water outlet end of the heat exchanger is connected with one end of the water outlet pipe, the water inlet end of the heat exchanger is connected with one end of the water inlet pipe, and the other end of the water outlet pipe is connected with the other end of the water inlet pipe through the bidirectional circulating pump and the switch valve to form a circulating pipeline; the heat exchanger is electrically connected with the controller;
the controller is respectively electrically connected with the bidirectional circulating pump and the switch valve and is used for controlling the bidirectional circulating pump to run in the forward direction or the reverse direction and the switch valve to be switched on or switched off.
Preferably, the water heater further comprises an inlet water temperature sensor; the water inlet temperature sensor is arranged at the water inlet end of the heat exchanger and electrically connected with the controller.
Preferably, the water heater further comprises an outlet water temperature sensor; the water outlet temperature sensor is arranged at the water outlet end of the heat exchanger and is electrically connected with the controller.
Preferably, the water heater further comprises: a water flow sensor; the water flow sensor is arranged in the water inlet pipe and electrically connected with the controller.
Preferably, the outlet pipe is connected with one or more water taps.
Preferably, the water heater further comprises a fire grate, the fire grate is arranged below the heat exchanger, and the fire grate is electrically connected with the controller.
Preferably, at least one section valve is further installed on the fire grate, and the section valve is electrically connected with the controller.
Preferably, a gas proportional valve is further mounted on the fire grate and electrically connected with the controller.
Preferably, the water heater further comprises a temperature relay, and the temperature relay is arranged at the water outlet end of the heat exchanger and electrically connected with the controller.
Preferably, the switch valve is a bidirectional switch valve.
The utility model discloses an actively advance the effect and lie in: the water heater is internally provided with the two-way circulating pump, the two-way circulating pump is controlled to firstly run in the forward direction so as to preheat water in the water outlet pipe, and then the two-way circulating pump runs in the reverse direction so as to reserve sufficient hot water at the water inlet end of the heat exchanger, so that energy can be saved while the condition of cold water is avoided when a user uses hot water. In addition, the switch valve can be controlled to be closed after heating is finished, so that the hot water temperature reduction caused by the fact that cold water in the water inlet pipe interferes with hot water in the water outlet pipe is avoided.
Drawings
Fig. 1 is a water heater according to an exemplary embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of a water heater according to an exemplary embodiment of the present invention; the water heater comprises a heat exchanger 3, a water inlet pipe 1, a water outlet pipe 2, a bidirectional circulation pump 4, a switch valve 5 and a controller, wherein the controller is not shown in the figure.
The water outlet end of the heat exchanger 3 is connected with one end of the water outlet pipe 2, the water inlet end of the heat exchanger 3 is connected with one end of the water inlet pipe, and the other end of the water outlet pipe 2 is connected with the other end of the water inlet pipe 1 through the bidirectional circulating pump 4 and the switch valve 5 to form a circulating pipeline.
The heat exchanger 3 is used for heating the water flow input by the water inlet pipe 1 and outputting the heated water flow from the water outlet pipe 2 through the water outlet pipe 2. The heat exchanger 3 is electrically connected with the controller to heat the water flow according to the heating instruction of the controller, wherein the heating instruction includes but is not limited to heating temperature and heating time.
In one specific example, the controller may respond to a heating command from a user and control the heat exchanger 3 to heat for a preset heating time period, so that a sufficient amount of hot water can flow into the outlet pipe and a sufficient amount of hot water can be provided in the outlet pipe when the user needs the hot water. The preset heating time can be determined according to the hot water requirement of the user and the length of the water outlet pipe 2, and is not particularly limited herein
The bidirectional circulating pump 4 is used for controlling the flow direction of water flow in the circulating pipeline, when the bidirectional circulating pump 4 runs in a forward direction, the water flow flows into the water outlet pipe 2 from the heat exchanger 3 and flows into the heat exchanger 3 from the water inlet pipe 1, and when the bidirectional circulating pump 4 runs in a reverse direction, the water flow flows into the water inlet pipe 1 from the heat exchanger 3 and flows into the heat exchanger 3 from the water outlet pipe 2. The bidirectional circulation pump 4 is electrically connected with the controller to control the operation of the bidirectional circulation pump 4 according to the operation instruction of the controller, wherein the operation instruction includes, but is not limited to, the operation direction and the operation time of the bidirectional circulation pump 4.
In a specific example, the controller may control the bidirectional circulation pump 4 to operate in the forward direction for a first preset time period in response to a preheating instruction issued by a user, so that a sufficient amount of hot water flows into the water outlet pipe 2; and then the bidirectional circulating pump 4 is controlled to reversely run for a second preset time so that sufficient hot water is reserved at the water inlet end connected with the heat exchanger.
The first preset time period can be determined according to the proportion of the water outlet pipe in the circulating pipeline and the whole pipe heating time period, and can also be determined according to the water demand of a user. The full-pipe preheating time period may specifically be a time period required for all water flows in the circulating pipeline to be heated. The second preset time period is usually determined according to the performance of the water heater, and specifically may be the time required for the water heater to heat to the set temperature, and may also be determined according to the water demand of the user.
The bidirectional circulating pump firstly operates in the forward direction to preheat water in the water outlet pipe, and then operates in the reverse direction to reserve sufficient hot water at the water inlet end of the heat exchanger, so that the water at the water inlet end of the water outlet pipe and the water at the water inlet end of the heat exchanger can be preheated, and energy can be saved while cold water is prevented from being used by a user.
In addition, when responding to a preheating instruction sent by a user for the first time, the controller controls the bidirectional circulating pump 4 to be continuously and forwardly started until water flow in the circulating pipeline is heated so as to obtain the full-pipe heating time length.
The switch valve 5 can be opened or closed, when the switch valve 5 is opened, water flow can flow from the water inlet pipe to the water outlet pipe or from the water outlet pipe to the water inlet pipe according to water demand, and the flow direction of the water flow is not limited in the pipeline; when the switch valve 5 is closed, water flow does not flow from the water inlet pipe 1 to the water outlet pipe 2 and/or from the water outlet pipe 2 to the water inlet pipe 1 any more, so as to avoid cold water in the water inlet pipe 1 from interfering with hot water in the water outlet pipe 2 and influencing the water demand of a user. The switch valve 5 is electrically connected with the controller to control the opening and closing of the switch valve according to the opening and closing instruction of the controller.
Wherein, the switch valve 5 is a two-way switch valve, when the switch valve 5 is opened, the water flow can flow in two ways in the circulating pipeline.
In a specific example, the controller may control the on-off valve 5 to be opened in response to a warm-up command issued by a user so that water may circulate in the circulation pipe; after the first preset time period and the second preset time period, the on-off valve 5 is controlled to be closed to limit the flow of the water flow.
In an embodiment, a water tap 16 is further disposed in the circulation pipeline, and the water tap 16 can be connected to the two pipelines of the water outlet pipe 2 and the water inlet pipe 1, and can select cold water or hot water according to the water demand of a user.
In an embodiment, the water heater further comprises an inlet water temperature sensor 7; temperature sensor 7 of intaking install in heat exchanger 3's the end of intaking, temperature sensor 7 of intaking with the controller electricity is connected.
The water inlet temperature sensor 7 is used for collecting the water inlet temperature of the heat exchanger 3 and sending the water inlet temperature to the controller, and the controller determines the heating time of the whole pipe according to the change of the water inlet temperature. When the change of the inlet water temperature is larger than a change threshold value, all water flows in the circulating pipeline can be considered to be heated, and meanwhile, the time when the change of the inlet water temperature reaches the change threshold value is determined as the whole-pipe heating time length. The changeover threshold may be set by a hot water temperature set by a user.
In an embodiment, the water heater further comprises an outlet water temperature sensor 8; the outlet water temperature sensor 8 is arranged at the outlet end of the heat exchanger 3 and is electrically connected with the controller.
And the outlet water temperature sensor 8 is used for acquiring the outlet water temperature of the heat exchanger 3 and sending the outlet water temperature to the controller. The controller controls the heating of the heat exchanger 3 according to the outlet water temperature. When the temperature of the outlet water does not reach the preset temperature, the heating power of the heat exchanger 3 is increased; when the outlet water temperature is higher than the preset temperature, the heating power of the heat exchanger 3 is reduced. The preset temperature is set by a user according to the hot water demand.
In an embodiment, the water heater further comprises: a water flow rate sensor 9; the water flow sensor 9 is arranged in the water inlet pipe, and the water flow sensor 9 is electrically connected with the controller. The water flow sensor is used for collecting the water flow of the heat exchanger 3 and sending the water flow to the controller.
In an embodiment, a fire grate 10 is arranged below the water heater, the fire grate 10 is electrically connected with the controller, and the fire grate 10 provides a proper heating temperature for the heat exchanger 3 by burning gas. The fire row 10 is provided with one or more segment valves 11. The segment valve 11 is electrically connected to the controller, and the segment valve 11 is used for adjusting the fire grate segment.
In an embodiment, a gas proportional valve 12 is further installed on the fire grate 10, the gas proportional valve 12 is electrically connected with the controller, and the gas proportional valve 12 is used for adjusting the gas quantity of the fire grate.
In an implementation manner, the water heater further comprises a temperature relay 13, and the temperature relay 13 is arranged at the water outlet end of the heat exchanger 3 and is electrically connected with the controller. When the temperature of the outlet water is higher than the protection threshold value, the temperature relay 13 is controlled to be closed to stop the water heater to heat, and potential safety hazards caused by overhigh temperature are avoided. The protection threshold may be set by an administrator at the time of shipment.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A water heater is characterized by comprising a heat exchanger, a water outlet pipe, a water inlet pipe, a bidirectional circulating pump, a switch valve and a controller;
the water outlet end of the heat exchanger is connected with one end of the water outlet pipe, the water inlet end of the heat exchanger is connected with one end of the water inlet pipe, and the other end of the water outlet pipe is connected with the other end of the water inlet pipe through the bidirectional circulating pump and the switch valve to form a circulating pipeline; the heat exchanger is electrically connected with the controller;
the controller is respectively electrically connected with the bidirectional circulating pump and the switch valve and is used for controlling the bidirectional circulating pump to run in the forward direction or the reverse direction and the switch valve to be switched on or switched off.
2. The water heater of claim 1, further comprising an incoming water temperature sensor; the water inlet temperature sensor is arranged at the water inlet end of the heat exchanger and electrically connected with the controller.
3. The water heater of claim 1, further comprising a leaving water temperature sensor; the outlet water temperature sensor is arranged at the water outlet end of the heat exchanger and is electrically connected with the controller.
4. The water heater of claim 1, further comprising: a water flow sensor; the water flow sensor is arranged in the water inlet pipe and electrically connected with the controller.
5. The water heater as recited in claim 1, wherein said outlet pipe is connected to one or more water taps.
6. The water heater as recited in claim 1 further comprising a fire grate, said fire grate being disposed below said heat exchanger, said fire grate being electrically connected to said controller.
7. The water heater according to claim 6, wherein said fire bank further has at least one sectionalizing valve mounted thereon, said sectionalizing valve being electrically connected to said controller.
8. The water heater according to claim 6, wherein a gas proportional valve is further mounted on said fire bank, said gas proportional valve being electrically connected to said controller.
9. The water heater of claim 1, further comprising a temperature relay disposed at the water outlet end of the heat exchanger and electrically connected to the controller.
10. The water heater as recited in claim 1, wherein said switch valve is a two-way switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917077.1U CN217685901U (en) | 2022-07-21 | 2022-07-21 | Water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221917077.1U CN217685901U (en) | 2022-07-21 | 2022-07-21 | Water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217685901U true CN217685901U (en) | 2022-10-28 |
Family
ID=83720551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221917077.1U Active CN217685901U (en) | 2022-07-21 | 2022-07-21 | Water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217685901U (en) |
-
2022
- 2022-07-21 CN CN202221917077.1U patent/CN217685901U/en active Active
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