CN106091384B - Wall-mounted stove - Google Patents
Wall-mounted stove Download PDFInfo
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- CN106091384B CN106091384B CN201610566913.9A CN201610566913A CN106091384B CN 106091384 B CN106091384 B CN 106091384B CN 201610566913 A CN201610566913 A CN 201610566913A CN 106091384 B CN106091384 B CN 106091384B
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- wall
- water outlet
- heat exchanger
- pipe section
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 239000013013 elastic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Fluid Heaters (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a wall-mounted boiler, relates to the field of household appliances, and mainly aims to reduce the temperature of outlet water when a domestic water outlet end of the wall-mounted boiler is turned off for a period of time and then is turned on again. The main technical scheme adopted is as follows: the wall-mounted furnace is provided with a domestic water outlet and comprises a heat exchanger, the heat exchanger is provided with a water inlet and a water outlet, and the domestic water outlet corresponds to the water outlet of the heat exchanger; the wall-mounted boiler forms a flow passage between a water inlet of the heat exchanger and a domestic water outlet; a connecting port is arranged on the overflowing channel; the wall-mounted stove also comprises a control device, and the control device is used for controlling water in the through-flow channel to flow out of the connecting port to set volume when the domestic water outlet is closed. Wherein, because when domestic water export is closed the controlling means can control the water that overflows in the passageway and follow the connector outflow and set for the volume to can reduce the bulk temperature of the water that overflows in the passageway, and then reduce the temperature of the water that flows out when domestic water export is opened once more.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a wall-mounted stove.
Background
The phenomenon of water supply interruption and temperature rise often occurs in the process of using the wall-mounted boiler, and the water supply interruption and temperature rise of the wall-mounted boiler means that a user can encounter a section of high-temperature water when the user closes the domestic water outlet end of the wall-mounted boiler and reopens the domestic water outlet end for a period of time in the process of using domestic hot water. The main reasons for this are: after a water tap at the domestic water outlet end is turned off, the static domestic hot water in the heat exchanger of the wall-hanging furnace is continuously heated by circulating water serving as a heat transfer medium. The phenomenon of water cut-off and temperature rise of the wall-mounted boiler generally causes the water temperature at the reopened domestic water outlet end to rise by more than eight degrees, and a user is easily scalded at high temperature. Therefore, the phenomenon of water cut-off and temperature rise of the wall-mounted boiler becomes an important factor influencing the comfort of users of the wall-mounted boiler. Reducing the water cut-off and temperature rise of the wall-mounted boiler is an important subject of structural design research of various wall-mounted boiler manufacturers.
Disclosure of Invention
In view of the above, the present invention provides a wall-hanging stove, which mainly aims to reduce the temperature of the outlet water when the domestic water outlet of the wall-hanging stove is turned on again after being turned off for a period of time.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
an embodiment of the invention provides a wall-mounted furnace having a domestic water outlet, the wall-mounted furnace comprising a heat exchanger having a water inlet and a water outlet, the domestic water outlet corresponding to the water outlet of the heat exchanger;
the wall-mounted boiler forms a flow passage between a water inlet of the heat exchanger and the domestic water outlet; a connecting port is arranged on the overflowing channel;
the wall-mounted stove further comprises a control device, and the control device is used for controlling water in the through-flow channel to flow out of the connection port to a set volume when the domestic water outlet is closed.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
In the wall-mounted stove, optionally, the control device is further configured to control at least a part of the set volume of water flowing out of the connection port to flow back into the overflow channel from the connection port when the domestic water outlet is reopened after being closed.
In the wall-mounted furnace, optionally, the flow passage comprises a straight pipe section and a conical pipe section, one end of the straight pipe section is connected with the small-mouth end of the conical pipe section, the other end of the straight pipe section corresponds to the water inlet of the heat exchanger, and the large-mouth end of the conical pipe section corresponds to the domestic water outlet;
the taper pipe section is provided with the connecting port;
wherein the control device comprises the straight pipe section, the taper pipe section and a container with variable volume; the container is connected with the connecting port so as to be communicated with the interior of the overflowing channel.
In the wall-hanging stove, optionally, a valve is arranged between the connecting port and the container.
In the wall-mounted furnace, the connection port is optionally provided on one side of the conical pipe section close to the straight pipe section.
In the aforementioned wall-hanging stove, the container is optionally an expansion tank.
In the wall-hanging stove, the container is a tank made of elastic material.
In the wall-mounted furnace, optionally, one end of the straight pipe section opposite to the conical pipe section is connected to the water outlet of the heat exchanger.
In the aforementioned wall-mounted furnace, optionally, the set volume is 0.2 to 1 times the volume of the heat exchanger.
In the wall-mounted furnace, the heat exchanger is a plate heat exchanger.
By means of the technical scheme, the wall-mounted furnace at least has the following beneficial effects:
in the technical scheme provided by the invention, the connection port is arranged between the water inlet of the heat exchanger and the domestic water outlet of the wall-mounted furnace of the overflowing channel, when the domestic water outlet of the wall-mounted furnace is closed, the control device can control the water in the overflowing channel to flow out of the connection port for setting the volume, at the moment, cold water still flows into the overflowing channel at the water inlet end of the heat exchanger, and the cold water flowing into the overflowing channel is mixed with the residual hot water in the overflowing channel, so that the temperature of the water in the overflowing channel is integrally reduced, when the domestic water outlet of the wall-mounted furnace is opened again, the temperature of the outlet water is lower, and the technical problem that the outlet water is too high when the domestic water outlet of the wall-mounted furnace is closed for a period of time and then is opened again in the prior art is solved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Fig. 1 is a schematic partial structural view of a wall-hanging stove according to an embodiment of the present invention;
fig. 2 is a schematic partial structural view of a flow passage of a wall-hanging stove according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a direction of pressure in a tank when water flows through a flow passage of a wall-hanging stove according to an embodiment of the present invention;
fig. 4 is a schematic view of a direction of pressure in a tank when there is no water flow in a flow passage of a wall-hanging stove according to an embodiment of the present invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the predetermined object, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1, a wall-hanging furnace according to an embodiment of the present invention includes a heat exchanger 1 and a control device 3. The heat exchanger 1 has a water inlet 21 and a water outlet (not shown), and the wall-mounted stove of the present invention has a domestic water outlet 22, and the domestic water outlet 22 corresponds to the water outlet of the heat exchanger 1. The cold water flowing in from the water inlet 21 of the heat exchanger 1 exchanges heat in the heat exchanger 1 and then is heated, and the heated hot water flows out from the domestic water outlet 22 of the wall-hanging stove for users to use, such as bathing. The wall-hanging stove of the present invention forms a flow passage (not shown) between the water inlet 21 of the heat exchanger 1 and the domestic water outlet 22. The overflowing channel is provided with a connecting port 23. The control device 3 can control the water in the overflowing channel to flow out of the set volume from the connecting port 23 when the domestic water outlet 22 is closed. When the wall-mounted furnace works, the overflowing channel is filled with water, and the water inlet 21 of the heat exchanger 1 is always kept in continuous water supply.
In the above technical scheme, when the wall-mounted boiler works, cold water flows into the flow passage from the water inlet 21 of the heat exchanger 1, the cold water is heated after heat exchange in the heat exchanger 1, and hot water after heating flows out from the domestic water outlet 22 for users to use. When the domestic water outlet 22 of the wall-mounted furnace is closed, the control device 3 controls water in the overflowing channel to flow out of the connecting port 23 for a set volume, at the moment, cold water still flows into the overflowing channel at the end of the water inlet 21 of the heat exchanger 1, and the cold water flowing into the overflowing channel is mixed with residual hot water in the overflowing channel, so that the temperature of the water in the overflowing channel is integrally reduced, when the domestic water outlet 22 of the wall-mounted furnace is opened again, the temperature of the outlet water is lower, and the technical problem that the outlet water temperature is too high when the domestic water outlet 22 of the wall-mounted furnace is closed for a period of time and then is opened again in the prior art is solved.
In order to save water resources and reuse the water flowing out of the connection port 23, the control device 3 is further configured to control at least a portion of the set volume of water flowing out of the connection port 23 to flow back from the connection port 23 into the overflow channel when the domestic water outlet 22 is opened again after being closed. Preferably, when the domestic water outlet 22 is opened, the control device 3 controls the set volume of water flowing out of the connection port 23 to flow back into the overflow channel from the connection port 23.
In order to fulfill the function of the aforementioned control device 3, as shown in fig. 2, the aforementioned flow passage comprises a straight pipe section 31 and a conical pipe section 32. The cone segments 32 have a small mouth end and a large mouth end. One end of the straight pipe section 31 is connected with the small end of the conical pipe section 32, and the other end of the straight pipe section 31 corresponds to the water inlet 21 of the heat exchanger. The large opening end of the conical pipe section 32 corresponds to the domestic water outlet 22. The aforementioned connection port 23 is provided on the taper pipe section 32. The control device 3 comprises the straight pipe section 31, the taper pipe section 32 and a container 33 with variable volume. The container 33 is connected to the connection port 23 to communicate with the inside of the overflowing passage. In this example, the volume of the wall-hanging stove of the present invention can be saved by using the straight pipe section 31 and the tapered pipe section 32 of the transfer passage as a part of the control device 3.
The container 33 may be an expansion tank or a tank body made of an elastic material, or the like. Further, the expansion tank may be a plastic expansion tank. Of course, the container 33 may be other variable volume implements, and will not be described in detail herein.
In the above example, the container 33 is exemplified as an expansion tank. As shown in fig. 2, the straight pipe section 31 and the conical pipe section 32 are matched to form a venturi structure, when the wall-hanging stove of the invention works, the expansion tank is filled with gas, the domestic water outlet 22 end of the wall-hanging stove is opened, and when water flows through the conical pipe section 32 from the straight pipe section 31, negative pressure is formed in the expansion tank, as shown in fig. 3; when the domestic water outlet 22 is closed, the dynamic pressure of the water in the overflow channel is completely converted into static pressure, the pressure of the water in the overflow channel is greater than the pressure of the gas in the expansion tank, and positive pressure is formed, as shown in fig. 4, so that part of the water in the overflow channel is squeezed into the expansion tank until the pressure in the overflow channel and the gas pressure in the expansion tank are kept balanced. When the domestic water outlet 22 is opened again, the pressure of the gas in the expansion tank is greater than the pressure of the water in the overflowing channel, the water in the expansion tank is extruded out of the overflowing channel by the gas in the expansion tank, and the process is repeated.
A valve (not shown) may be provided between the connection port 23 and the container 33 to control opening and closing of the container 33. When the container 33 needs to be replaced or maintained, the valve can be closed to detach the container 33 from the connecting port 23, so that the water in the overflowing channel can be effectively prevented from being sprayed out of the connecting port 23.
As shown in fig. 2, the aforementioned connecting opening 23 may be provided on the side of the conical pipe section 32 close to the straight pipe section 31, in other words: the connection port 23 is provided on the side of the taper pipe section 32 near the small-mouth end. Because the negative pressure generated at the connecting port 23 is stronger as the end is closer to the small port end, the volume change of the container 33 can be larger, when the domestic water outlet 22 end of the wall-mounted stove is closed, more hot water can be pressed into the container 33, and correspondingly, more cold water can flow into the water inlet 21 end of the heat exchanger 1 from the overflowing channel, so that the water temperature in the overflowing channel is further reduced, and the situation that the water temperature in the overflowing channel is excessively high and the user is scalded when the domestic water outlet 22 end is opened again is further prevented.
Preferably, one end of the straight pipe section 31 opposite to the tapered pipe section 32 is connected to the water outlet of the heat exchanger 1, so that the wall-hanging furnace of the present invention only needs to change the water path of the rear section of the existing heat exchanger 1, thereby reducing the change of the heat exchanger 1 itself, and saving the change cost of the wall-hanging furnace in the prior art.
In a specific application example, the set volume of the water flowing out from the connection port 23 when the domestic water outlet 22 is closed is 0.2 to 1 times of the volume of the heat exchanger 1, that is, the volume change of the gas in the expansion tank is 0.2 to 1 times of the volume of the heat exchanger 1. In this way, when the end of the domestic water outlet 22 is closed and the cold water flowing from the end of the water inlet 21 of the heat exchanger 1 is mixed with the hot water remaining in the flow passage, the water temperature can reach a moderate level, i.e. the water temperature is not too low to affect the use of the user, and is too high to scald the user. Preferably, the set volume of the water flowing out of the connection port 23 when the domestic water outlet 22 is closed is 0.25 times the volume of the heat exchanger 1, that is, the volume change of the gas in the expansion tank is 0.25 times the volume of the heat exchanger 1.
Here, it should be noted that: in the example in which the container 33 is an expansion tank, the gas pressure in the expansion tank can be adjusted so that the set volume of water flowing out from the connection port 23 when the domestic water outlet 22 is closed is 0.2 to 1 times the volume of the heat exchanger 1, taking the water flow pressure in the flow passage and the venturi structure into consideration.
The heat exchanger 1 may be a plate heat exchanger, etc., and it should be understood by those skilled in the art that the plate heat exchanger 1 is merely an example and is not intended to limit the technical solution of the present embodiment, and other types of heat exchangers 1 are also applicable.
Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above exemplary embodiments with each other according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein again.
According to the above embodiments, the wall-hanging stove of the present invention has at least the following advantages:
the wall-mounted boiler provided by the invention is provided with a novel water path structure, and the water path utilizes the Venturi phenomenon to change the gas pressure in an expansion tank connected with the Venturi structure. When the domestic water outlet 22 end of the wall-mounted boiler is opened, water flows through the Venturi structure and forms negative pressure in the expansion tank; when the domestic water outlet 22 end is closed, the dynamic pressure of the water flow in the overflowing channel is completely converted into static pressure, positive pressure is formed in the expansion tank at the moment, and the water flow in the overflowing channel is pressed into the expansion tank, so that cold water still flows into the overflowing channel of the heat exchanger 1 at the water inlet 21 end of the heat exchanger 1 at the moment when the domestic water outlet 22 end is closed, high-temperature water in the overflowing channel flows into the expansion tank from the connecting port 23, and the cold water flowing from the water inlet 21 end of the heat exchanger 1 is mixed with residual hot water in the overflowing channel, so that the temperature of the water flow in the overflowing channel is reduced, and the effect of reducing the water cut-off temperature rise of the wall-hanging furnace is achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (8)
1. A wall-hanging stove having a domestic water outlet, the wall-hanging stove comprising a heat exchanger having a water inlet and a water outlet, the domestic water outlet corresponding to the water outlet of the heat exchanger;
the wall-mounted boiler forms a flow passage between a water inlet of the heat exchanger and the domestic water outlet; a connecting port is arranged on the overflowing channel;
the wall-mounted stove further comprises a control device, and the control device is used for controlling water in the through-flow channel to flow out of the connection port to a set volume when the domestic water outlet is closed; the overflowing channel comprises a straight pipe section and a conical pipe section, one end of the straight pipe section is connected with the small-mouth end of the conical pipe section, the other end of the straight pipe section corresponds to the water inlet of the heat exchanger, and the large-mouth end of the conical pipe section corresponds to the domestic water outlet;
the taper pipe section is provided with the connecting port;
wherein the control device comprises the straight pipe section, the taper pipe section and a container with variable volume; the container is connected with the connecting port to be communicated with the interior of the overflowing channel; the control device is also used for controlling at least one part of the set volume of water flowing out of the connecting port to flow back into the overflowing channel from the connecting port when the domestic water outlet is reopened after being closed.
2. The wall hanging stove of claim 1,
a valve is arranged between the connecting port and the container.
3. The wall hanging stove as claimed in claim 1 or 2,
the connecting port is arranged on one side, close to the straight pipe section, of the conical pipe section.
4. The wall hanging stove of claim 2,
the container is an expansion tank.
5. The wall hanging stove of claim 2,
the container is a tank body made of elastic materials.
6. The wall hanging stove of claim 2,
and one end of the straight pipe section, which is opposite to the conical pipe section, is connected with a water outlet of the heat exchanger.
7. The wall hanging stove according to any one of claims 1 to 2,
the set volume is 0.2 to 1 times the volume of the heat exchanger.
8. The wall hanging stove according to any one of claims 1 to 2,
the heat exchanger is a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566913.9A CN106091384B (en) | 2016-07-15 | 2016-07-15 | Wall-mounted stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566913.9A CN106091384B (en) | 2016-07-15 | 2016-07-15 | Wall-mounted stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106091384A CN106091384A (en) | 2016-11-09 |
| CN106091384B true CN106091384B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610566913.9A Active CN106091384B (en) | 2016-07-15 | 2016-07-15 | Wall-mounted stove |
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| Country | Link |
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| CN (1) | CN106091384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110721625A (en) * | 2019-10-15 | 2020-01-24 | 威尚生物技术（合肥）有限公司 | A equipment for reagent draws |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098653U (en) * | 1991-07-08 | 1992-03-11 | 余启平 | Instantaneously scald-proof safety device for water heater |
| CN2600767Y (en) * | 2003-02-22 | 2004-01-21 | 钟辉安 | Device for controlling water temp. of water heater |
| JP2011158209A (en) * | 2010-02-02 | 2011-08-18 | Osaka Gas Co Ltd | Open type hot water circulation device |
| JP2013245895A (en) * | 2012-05-28 | 2013-12-09 | Paloma Co Ltd | Water heater |
| CN203758013U (en) * | 2014-03-04 | 2014-08-06 | 江门菲普森电器制造有限公司 | Self-regulation safe air energy water heater |
| CN205897556U (en) * | 2016-07-15 | 2017-01-18 | 珠海格力电器股份有限公司 | Wall-mounted stove |
-
2016
- 2016-07-15 CN CN201610566913.9A patent/CN106091384B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098653U (en) * | 1991-07-08 | 1992-03-11 | 余启平 | Instantaneously scald-proof safety device for water heater |
| CN2600767Y (en) * | 2003-02-22 | 2004-01-21 | 钟辉安 | Device for controlling water temp. of water heater |
| JP2011158209A (en) * | 2010-02-02 | 2011-08-18 | Osaka Gas Co Ltd | Open type hot water circulation device |
| JP2013245895A (en) * | 2012-05-28 | 2013-12-09 | Paloma Co Ltd | Water heater |
| CN203758013U (en) * | 2014-03-04 | 2014-08-06 | 江门菲普森电器制造有限公司 | Self-regulation safe air energy water heater |
| CN205897556U (en) * | 2016-07-15 | 2017-01-18 | 珠海格力电器股份有限公司 | Wall-mounted stove |
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| Publication number | Publication date |
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| CN106091384A (en) | 2016-11-09 |
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