CN111089418A - Working system and working method of dual-purpose furnace - Google Patents
Working system and working method of dual-purpose furnace Download PDFInfo
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- CN111089418A CN111089418A CN201811239707.2A CN201811239707A CN111089418A CN 111089418 A CN111089418 A CN 111089418A CN 201811239707 A CN201811239707 A CN 201811239707A CN 111089418 A CN111089418 A CN 111089418A
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- 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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form using fluid fuel
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- 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
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- 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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
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- 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
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
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- 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
- F24H9/16—Arrangements for water drainage
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- 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
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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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)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to a working system of a dual-purpose furnace, which comprises a combustion heat exchange device, a heating water circulation pipeline and a heat exchanger, wherein part of the heating water circulation pipeline passes through the combustion heat exchange device; part of the domestic water pipeline passes through the heat exchanger, and the three-way valve is connected to the water outlet section of the heating water circulation pipeline, and the heat exchanger is connected to the water return section of the heating water circulation pipeline; the three-way valve is also communicated with a heating water inflow port on the heat exchanger through a connecting pipeline, a water outlet section of the domestic water pipeline is connected with a drainage pipeline, and the drainage pipeline is provided with a drainage valve. The invention also relates to a working method of the dual-purpose furnace, which is characterized in that under the rapid heating working mode, the heating working state is kept, the water quantity is ensured when the domestic water demand exists, and the water in the domestic water pipeline is drained when the domestic water demand does not exist, so that the temperature reduction of heating backwater is ensured, and the continuous operation of heating work is ensured. Meanwhile, the heat exchanger is connected in series on the water return section of the heating water circulation pipeline, so that the function of zero cold water can be effectively realized.
Description
Technical Field
The invention relates to the technical field of dual-purpose furnaces, in particular to a working system of a dual-purpose furnace and a working method of the dual-purpose furnace.
Background
The existing dual-purpose stove can be used for heating and domestic hot water, but the dual-purpose stove has the following problem in the using process, when a house is in a cold state, the dual-purpose stove is used for heating, and the house can be heated up only by waiting for more than 10 hours. In the process, the dual-purpose furnace cannot continuously maintain the combustion state for a long time, mainly because the heat transfer of the ground heating is slow, the temperature of the heating return water is slowly increased after the dual-purpose furnace burns for a period of time, and thus the combustion chamber is quickly in minimum load combustion for keeping the temperature of the outlet water at the set temperature. Finally, the heating outlet water temperature exceeds the heating stop temperature even in the minimum load state, so that the dual-purpose furnace has to stop heating combustion and wait for the heating return water temperature to drop to a lower temperature. For this reason, when the house is initially heated, the dual-purpose stove is in an intermittent combustion state, and the house is heated very slowly.
In addition, as the invention of chinese patent application publication No. CN108006959A (application No. CN201710566911.4), "gas heating and hot water supply dual-purpose furnace system", when the dual-purpose furnace system disclosed therein is in use, when the water for bathing is needed, the dual-purpose furnace enters into a bathing mode, i.e. the automatic three-way valve will automatically switch to the bathing loop, and at this time, the water from the combustion heat exchanger will flow into the plate heat exchanger, and further exchange heat with the water for bathing, so as to heat the bathing water. Because the bath water adopted by the dual-purpose furnace is limited, in a heating state, if the need exists, the water circulation in the heating loop is stopped, the dual-purpose furnace enters a bathing working mode, and the heating is stopped, so that the heating working state of the dual-purpose furnace is interrupted, the heating is interrupted, and the temperature rise speed of a house is further influenced.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a working system of a dual-purpose furnace, which can ensure long-time continuous combustion of the dual-purpose furnace, can realize a zero-cold-water function of domestic water, and can avoid interruption of a heating function in a working mode of the zero-cold-water function.
The second technical problem to be solved by the present invention is to provide a working method of a dual-purpose furnace capable of rapidly increasing heating temperature in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: a working system of a dual-purpose furnace comprises
A combustion heat exchange device;
the heating water circulating pipeline partially passes through the combustion heat exchange device;
a heat exchanger;
the domestic water pipeline partially passes through the heat exchanger;
the three-way valve is connected to the water outlet section of the heating water circulation pipeline;
the method is characterized in that: the heat exchanger is connected to the water return section of the heating water circulation pipeline; the three-way valve is also communicated with a heating water inflow port on the heat exchanger through a connecting pipeline, a water outlet section of the domestic water pipeline is connected with a drainage pipeline, and the drainage pipeline is provided with a drainage valve.
In order to ensure the outlet water temperature of the domestic water, a bypass pipe is connected between the outlet pipe of the domestic water pipeline and the inlet pipe of the domestic water pipeline, and a water regulating valve is arranged on the bypass pipe.
Preferably, a first temperature sensor is arranged on the domestic water pipeline close to a domestic water outflow port of the heat exchanger, a second temperature sensor is arranged at a water outlet of the domestic water pipeline, and a third temperature sensor is arranged at a water inlet of the domestic water pipeline.
In order to effectively acquire real-time water quantity information, a water quantity sensor is arranged on the water inlet section of the domestic water pipeline.
Preferably, a first water pump is arranged on the domestic water pipeline and close to the domestic water outlet port on the heat exchanger.
Preferably, a second water pump is arranged on the heating water circulation pipeline and close to a heating water outlet port of the heat exchanger.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a working method of a dual-purpose furnace is characterized in that: the method comprises the following steps:
s1, starting a rapid heating working mode by a user according to the requirement;
s2, judging whether the current mode is in a quick heating working mode; if so, go to S3;
s3, judging whether the current user has the domestic water requirement; if so, go to S4; if not, go to S5;
s4, keeping the heating working state;
judging whether the flow of the domestic water of the user reaches the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode, if not, opening the drain valve and adjusting the opening of the drain valve so that the sum of the flow of the domestic water of the user and the water flow in the drain pipeline is larger than the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode;
and S5, controlling to open the drain valve.
In order to ensure that the outlet water temperature meets the requirements of users, in step S4, detecting whether the outlet water temperature at the outlet port of the domestic water on the heat exchanger is higher than a set temperature, and if so, controlling to open the water regulating valve and regulating the opening degree of the water regulating valve; the temperature of the outlet water of the domestic water pipeline is adjusted to reach the set temperature.
In the step S2, if the heating device is not in the rapid heating working mode at present, whether the zero cold water function is started is judged; if the zero cold water function is started, the first water pump is controlled to be started, so that water in the domestic water pipeline is driven to circularly flow, and preheating is carried out through the heat exchange effect of the heat exchanger.
Compared with the prior art, the invention has the advantages that: according to the working system of the dual-purpose furnace, the heat exchanger is connected to the water return section of the heating water circulation pipeline in series, and the working method of the dual-purpose furnace can be used for cooling the heating water return in the heating water circulation pipeline through the water flow in the domestic water pipeline, so that the phenomenon that heating is stopped due to overhigh water temperature in the heating water circulation pipeline when the temperature of a space to be heated is not raised is avoided. Therefore, the continuity of the heating working state of the dual-purpose furnace can be ensured, the working time of the dual-purpose furnace in the heating working state is long, and the purpose of rapid space heating is achieved. Simultaneously because at the heating in-process, heat exchanger is in operating condition, and hydroenergy in the domestic water pipeline can carry out effectual heat transfer, when there is the domestic water demand, has realized the effect of zero cold water, and this zero cold water's function can not break heating work, can go on simultaneously with the heating.
Drawings
FIG. 1 is a diagram of a working system of a dual-purpose furnace according to an embodiment of the present invention.
FIG. 2 is a flow chart of a working method of the dual-purpose furnace in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, the working system of the dual-purpose furnace in the present embodiment includes a combustion heat exchanger 1, a heating water circulation pipe 2, a heat exchanger 3, a domestic water pipe 4, a three-way valve 5, a bypass pipe 7, a first temperature sensor 41, a second temperature sensor 42, a third temperature sensor 43, a water amount sensor 44, a first water pump 45, and a second water pump 21.
Wherein the combustion heat exchange device 1 is arranged in the furnace body of the dual-purpose furnace and obtains heat through gas combustion.
Heating water circulating line 2 is a closed circulation channel, and this heating water circulating line 2 part is through burning heat transfer device 1, and heating water in the heating water circulating line 2 can carry out the heat exchange with burning heat transfer device 1, and partly process heating device 8 in addition, and then make the temperature degree that the water that flows to heating device 8 in the heating water circulating line 2 corresponds rise, and heating device 8 then sets up in the space of treating the heating, if place in the room. The heating water flowing through the heating apparatus 8 releases heat to the outside to exchange heat with the outside air, thereby heating the room.
The heating water circulation pipeline 2 comprises a water outlet section and a water return section, the water outlet section of the heating water circulation pipeline 2 is positioned between the combustion heat exchange device 1 and the inlet end of the heating device 8, and the water return section of the heating water circulation pipeline 2 is positioned between the outlet end of the heating device 8 and the combustion heat exchange device 1. The three-way valve 5 is arranged on the water outlet section of the heating water circulation pipeline 2, the three-way valve 5 is also communicated with a heating water inflow port on the heat exchanger 3 through a connecting pipeline, and when the water heater is used, a working circuit corresponding to heating water or a working circuit corresponding to domestic water can be switched on through the switching of the three-way valve 5, namely, heating work or bathing work is correspondingly carried out.
The heating water outlet port of the heating water circulation pipeline 2 close to the heat exchanger 3 is provided with a second water pump 21, and in the heating process, the second water pump 21 always keeps in a working state, so that the water in the heating water circulation pipeline 2 can be continuously circulated, and the heating work is orderly carried out.
The heat exchanger 3 is connected in series to a return water section of the heating water circulation pipe 2. The domestic water pipeline 4 part is through heat exchanger 3, and the heating return water that flows through carries out the heat exchange in the water in the domestic water pipeline 4 and the heat exchanger 3, and then realizes heating the water in the domestic water pipeline 4, guarantees that the outlet water temperature can satisfy user's needs to supply washing, bath to use. The water outlet section of the domestic water pipeline 4 is connected with a water drainage pipeline 6, and the water drainage pipeline 6 is provided with a water drainage valve 61.
A water quantity sensor 44 is arranged on the water inlet section of the domestic water pipeline 4 and used for detecting the water inlet quantity of the domestic water pipeline 4. The domestic water outlet of the domestic water pipeline 4 close to the heat exchanger 3 is provided with a first temperature sensor 41, the water outlet of the domestic water pipeline 4 is provided with a second temperature sensor 42, and the water inlet of the domestic water pipeline 4 is provided with a third temperature sensor 43. The first temperature sensor 41, the second temperature sensor 42 and the third temperature sensor 43 respectively detect the temperature data of the water at the corresponding positions, so as to conveniently control the outlet water temperature of the domestic water pipeline 4 to meet the water temperature required by the user.
A bypass pipe 7 is connected between the water outlet pipe of the domestic water pipeline 4 and the water inlet pipe of the domestic water pipeline 4, a water regulating valve 71 is arranged on the bypass pipe 7, the water regulating valve 71 can be connected or disconnected with the bypass pipe 7, when the second temperature sensor 42 detects that the outlet water temperature is higher than the temperature for setting, the inlet cold water can be guided in from the bypass pipe 7 by opening the water regulating valve 71, the outlet water temperature is further reduced, and the outlet water temperature of the domestic water pipeline 4 meets the water temperature required by a user. The outlet water temperature of the domestic water pipeline 4 can be detected and obtained according to the third temperature sensor 43. On the other hand, the opening degree of the water adjustment valve 71 can be obtained by comprehensively calculating the detection values of the water amount sensor 44 by the second temperature sensor 42 and the first temperature sensor 41, and the flow rate of the mixed cold water can be controlled.
In addition, the domestic water outlet port of the domestic water pipeline 4 close to the heat exchanger 3 is provided with a first water pump 45 for circulating the water in the domestic water pipeline 4.
As shown in fig. 2, the working method of the dual-purpose furnace in the embodiment includes the following steps:
s1, starting a rapid heating working mode by a user according to the requirement; when heating is started, the temperature in the room is low, and even if the temperature of the outlet water of the heating water circulation pipeline 2 is higher, the whole temperature of the room is required to be raised to a stable temperature for a long time, and the state needs to be kept continuously, so that the whole temperature of the room is raised continuously; in order to ensure that the heating process is not interrupted due to the high temperature of the outlet water of the heating water circulation pipeline 2, and achieve the purpose of rapid heating, the dual-purpose stove in the embodiment has a rapid heating working mode, and a user opens or closes the rapid heating working mode according to the requirement;
s2, judging whether the current mode is in a quick heating working mode;
if not, the dual-purpose furnace is in a common working mode, and in the heating process under the common working mode, if a flow signal of domestic water is detected, the three-way valve 5 is communicated to the heat exchanger 3, and then the heated heating water flowing out of the water outlet section of the heating water circulating pipeline 2 flows into the heat exchanger 3, the domestic water exchanges heat with the heating water in the heat exchanger 3, further heating the domestic water to make the water flowing out of the domestic water pipeline 4 reach the set temperature, in the process, if the first temperature sensor 41 detects that the temperature of the outlet water on the domestic water pipeline 4 close to the domestic water outlet port on the heat exchanger 3 is higher than the set temperature, the water regulating valve 71 is controlled to be opened, then the cold water input into the domestic water pipeline 4 is mixed, the water temperature is reduced, and the outlet water temperature at the water outlet of the domestic water pipeline 4 reaches the set temperature;
judging whether a zero cold water function is started or not in a common working mode; if the zero cold water function is started, the first water pump 45 is controlled to be started, so that water in the domestic water pipeline 4 is driven to circularly flow, and preheating is carried out through the heat exchange effect of the heat exchanger 3. In the process, if domestic water is needed, when the domestic water is just opened, the domestic water pipeline 4 is preheated, so that the condition of cold water in the earlier stage is avoided. Meanwhile, the three-way valve 5 is switched to conduct the connecting pipeline, so that water heated by the combustion heat exchange device 1 in the heating water circulation pipeline 2 flows into the heat exchanger 3 to exchange heat with water in the domestic water pipeline 4, water in the domestic water pipeline 4 is heated, and the water outlet temperature in the domestic water pipeline 4 meets the requirements of users. In the using process of domestic water, the first temperature sensor 41 monitors the outlet water temperature of the domestic water outlet port of the domestic water pipeline 4 close to the heat exchanger 3 at any time, the second temperature sensor 42 monitors the outlet water temperature of the domestic water outlet port of the domestic water pipeline 4 at any time, and the third temperature monitors the inlet water temperature of the domestic water pipeline 4 at any time, so that the outlet water temperature can be effectively controlled to meet the set requirement;
if so, the dual-purpose furnace performs a rapid heating working mode, namely S3;
s3, judging whether the current user has the domestic water requirement; if so, go to S4; if not, go to S5;
s4, keeping the heating working state;
judging whether the flow of the domestic water of the user reaches the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode, if not, opening the drain valve 61 and adjusting the opening degree of the drain valve 61, so that the sum of the flow of the domestic water of the user and the water flow in the drainage pipeline 6 is larger than the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode;
when the domestic water heat exchanger is used for requiring domestic water, in the process of heat exchange between water in the domestic water pipeline 4 and heating water, the outlet water temperature of the domestic water pipeline 4 is possibly higher than a set temperature, and whether the outlet water temperature of a domestic water outlet port on the heat exchanger 3 is higher than the set temperature or not needs to be detected; if not, because the water in the domestic water pipeline 4 always flows in the process of the rapid heating working mode, namely the water is always subjected to heat exchange with the heating water in the heat exchanger 3, the condition that the outlet water is cold water cannot occur, namely the function of zero cold water is automatically realized; if so, controlling to open the water regulating valve 71 and regulating the opening degree of the water regulating valve 71; the outlet water temperature of the domestic water pipeline 4 is adjusted to reach the set temperature.
S5, the opening of the drain valve 61 is controlled, water in the domestic water pipeline 4 is directly drained from the drain pipeline 6 to a water outlet or used as other water in a family, the water in the domestic water pipeline 4 can be guaranteed to flow all the time, water in the domestic water pipeline 4 exchanges heat with heating water in the heat exchanger 3, the return water temperature of the heating water is reduced, long-time continuous heating work of the dual-purpose furnace is guaranteed, the phenomenon that the heating work is interrupted due to overhigh heating water outlet temperature is avoided, and the heating rate is increased.
According to the working system of the dual-purpose furnace, the heat exchanger 3 is connected to the water return section of the heating water circulating pipeline 2 in series, the heating water in the heating water circulating pipeline 2 can be cooled through water flow in the domestic water pipeline 4 by using the working method of the dual-purpose furnace, and the phenomenon that heating is stopped due to overhigh water temperature in the heating water circulating pipeline 2 when the temperature of a space needing heating is not raised is avoided. Therefore, the continuity of the heating working state of the dual-purpose furnace can be ensured, the working time of the dual-purpose furnace in the heating working state is long, and the purpose of rapid space heating is achieved. Meanwhile, as the heat exchanger is in a working state during heating, water in the domestic water pipeline 4 can be effectively exchanged, when domestic water is needed, the effect of zero cold water is realized, and the function of the zero cold water can not interrupt heating work and can be carried out simultaneously with heating.
Claims (9)
1. A working system of a dual-purpose furnace comprises
A combustion heat exchange device (1);
a heating water circulating pipeline (2), wherein part of the heating water circulating pipeline passes through the combustion heat exchange device (1);
a heat exchanger (3);
a domestic water pipe (4) partially passing through the heat exchanger (3);
the three-way valve (5) is connected to the water outlet section of the heating water circulating pipeline (2);
the method is characterized in that: the heat exchanger (3) is connected to a water return section of the heating water circulation pipeline (2); the three-way valve (5) is communicated with a heating water inflow port on the heat exchanger (3) through a connecting pipeline, a water outlet section of the domestic water pipeline (4) is connected with a water drainage pipeline (6), and a water drainage valve (61) is arranged on the water drainage pipeline (6).
2. The dual-purpose furnace working system according to claim 1, wherein: a bypass pipe (7) is connected between the water outlet pipe of the domestic water pipeline (4) and the water inlet pipe of the domestic water pipeline (4), and a water regulating valve (71) is arranged on the bypass pipe (7).
3. The dual-purpose furnace operating system of claim 2, wherein: a first temperature sensor (41) is arranged on the domestic water pipeline (4) close to a domestic water outflow port on the heat exchanger (3), a second temperature sensor (42) is arranged at a water outlet of the domestic water pipeline (4), and a third temperature sensor (43) is arranged at a water inlet of the domestic water pipeline (4).
4. The dual-purpose furnace working system according to claim 1, wherein: a water quantity sensor (44) is arranged on the water inlet section of the domestic water pipeline (4).
5. The dual-purpose furnace operation system as set forth in any one of claims 1 to 4, wherein: a first water pump (45) is arranged on the domestic water pipeline (4) close to the domestic water outlet port on the heat exchanger (3).
6. The dual-purpose furnace operation system as set forth in any one of claims 1 to 4, wherein: and a second water pump (21) is arranged on the heating water circulating pipeline (2) close to a heating water outlet port of the heat exchanger (3).
7. A working method of a dual-purpose furnace is characterized in that: the method comprises the following steps:
s1, starting a rapid heating working mode by a user according to the requirement;
s2, judging whether the current mode is in a quick heating working mode; if so, go to S3;
s3, judging whether the current user has the domestic water requirement; if so, go to S4; if not, go to S5;
s4, keeping the heating working state;
judging whether the flow of the domestic water of the user reaches the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode, if not, opening the drain valve (61) and adjusting the opening degree of the drain valve (61) to ensure that the sum of the flow of the domestic water of the user and the water flow in the drain pipeline (6) is greater than the minimum water quantity meeting the backwater cooling requirement in the rapid heating working mode;
and S5, controlling to open the drain valve (61).
8. The operating method of the dual-purpose furnace as set forth in claim 7, wherein: in S4, simultaneously detecting whether the outlet water temperature of the domestic water outlet port on the heat exchanger (3) is higher than a set temperature, if so, controlling to open the water regulating valve (71) and regulating the opening degree of the water regulating valve (71); the outlet water temperature of the domestic water pipeline (4) is adjusted to reach the set temperature.
9. The operating method of the dual-purpose furnace as set forth in claim 7 or 8, wherein: in the step S2, if the heating device is not in the rapid heating working mode at present, whether the zero cold water function is started is judged; if the zero cold water function is started, the first water pump (45) is controlled to be started, so that water in the domestic water pipeline (4) is driven to circularly flow, and preheating is carried out through the heat exchange effect of the heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239707.2A CN111089418A (en) | 2018-10-24 | 2018-10-24 | Working system and working method of dual-purpose furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811239707.2A CN111089418A (en) | 2018-10-24 | 2018-10-24 | Working system and working method of dual-purpose furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457578A (en) * | 2020-05-13 | 2020-07-28 | 珠海格力电器股份有限公司 | Gas water heating system and control method thereof |
| CN112268365A (en) * | 2020-10-27 | 2021-01-26 | 宁波方太厨具有限公司 | Dual-purpose stove |
| CN113883725A (en) * | 2021-10-28 | 2022-01-04 | 宁波方太厨具有限公司 | Water heater start-stop control method, water heater and readable storage medium |
-
2018
- 2018-10-24 CN CN201811239707.2A patent/CN111089418A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457578A (en) * | 2020-05-13 | 2020-07-28 | 珠海格力电器股份有限公司 | Gas water heating system and control method thereof |
| CN112268365A (en) * | 2020-10-27 | 2021-01-26 | 宁波方太厨具有限公司 | Dual-purpose stove |
| CN112268365B (en) * | 2020-10-27 | 2022-01-28 | 宁波方太厨具有限公司 | Dual-purpose stove |
| CN113883725A (en) * | 2021-10-28 | 2022-01-04 | 宁波方太厨具有限公司 | Water heater start-stop control method, water heater and readable storage medium |
| CN113883725B (en) * | 2021-10-28 | 2022-10-11 | 宁波方太厨具有限公司 | Water heater start-stop control method, water heater and readable storage medium |
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