CN110939980A - Control method of dual-purpose furnace and dual-purpose furnace system - Google Patents
Control method of dual-purpose furnace and dual-purpose furnace system Download PDFInfo
- Publication number
- CN110939980A CN110939980A CN201811117032.4A CN201811117032A CN110939980A CN 110939980 A CN110939980 A CN 110939980A CN 201811117032 A CN201811117032 A CN 201811117032A CN 110939980 A CN110939980 A CN 110939980A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- water
- expansion
- heating
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/044—Flow sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/046—Pressure sensors
Landscapes
- 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)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention relates to a control method of a dual-purpose furnace, which detects the state of domestic water; when the domestic water is opened, detecting the pressure P1 in the domestic water pipeline; comparing the pressure P1 in the domestic water line with the safe pressure P01 of the expansion tank; if P1 is not more than P01, the expansion water tank is communicated with the domestic water pipeline; if P1 is more than P01, the communication between the expansion tank and the domestic water pipeline is cut off, and the expansion tank drains water. The invention also relates to a dual-purpose furnace system which comprises a heating pipeline, a domestic water pipeline and an expansion water tank, wherein the expansion water tank is provided with a heating water cavity, a domestic water cavity and an air cavity, the heating water cavity is connected with the heating pipeline through a first pipeline provided with a switch valve, the domestic water cavity is connected with the domestic water pipeline through a second pipeline provided with a switch valve, and a third pipeline provided with a switch valve is connected to the expansion water tank. The dual-purpose furnace system and the control method of the invention also ensure the use safety of the expansion water tank on the basis of effectively ensuring the water quantity stability.
Description
Technical Field
The invention relates to a control method of a dual-purpose furnace, and also relates to a dual-purpose furnace system applying the control method of the dual-purpose furnace.
Background
In a high-rise housing, the condition of unstable water pressure often occurs, and the unstable water pressure directly causes the fluctuation of water flow. So when using gas heater, because gas heater's constant temperature performance is limited, can appear the phenomenon that the temperature is suddenly cold and suddenly hot because of the fluctuation of discharge, seriously influence the travelling comfort that hot water used. The fluctuation of discharge is alleviated through setting up expansion tank in the water heater among the prior art, and the undulant principle of expansion tank buffering discharge does: when the water pressure of the pipeline is too high, the expansion water tank can effectively absorb the water flow to split the water entering the water heater, and the water yield of the water heater can be kept basically unchanged within a certain time. When the water pressure of the pipeline is too small, the expansion tank is in a drainage state, thus forming confluence with the water entering the water heater, and ensuring that the water yield of the water heater is basically unchanged within a certain time. The use of an expansion tank can result in an oversized water heater.
The invention discloses a working system of a dual-purpose furnace, and the working system of the dual-purpose furnace is applied to Chinese invention patent with publication number CN108061375A (application number 201710624991.4). The working system of the dual-purpose furnace is disclosed, wherein an expansion water tank is adopted to be provided with three cavities, one of the cavities is connected with a balanced air source, and the other two cavities are respectively connected with a domestic water pipeline and a heating pipeline. The dual-purpose expansion tank meets the dual purposes of heating and domestic water with the minimum volume. In the use process, the water pressure of domestic water is generally in the range of 0-0.3bar, but the maximum pressure can reach 15bar, the expansion water tank is damaged by excessive water pressure, the heating water is generally in the range of 0.5bar-3.5bar, and the heating loop is damaged by the water pressure of the heating water which is more than 3.5 bar. How to safely use the dual-purpose expansion tank is an important problem.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a control method for a dual-purpose furnace capable of effectively protecting the safety of an expansion water tank in view of the above prior art.
The second technical problem to be solved by the present invention is to provide a dual-purpose furnace system that can fully utilize the expansion and contraction amount of the expansion water tank and can ensure the pressure of the expansion water tank to be always within the safe range during the use process, aiming at the prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the control method of the dual-purpose furnace is characterized in that: the method comprises the following steps:
s1, detecting the real-time domestic water state;
s2, if the domestic water is opened, detecting the pressure P1 in the domestic water pipeline;
s3, comparing the pressure P1 in the domestic water pipeline with the safe pressure P01 of the expansion tank;
s4, if P1 is not more than P01, controlling and communicating the expansion water tank with a domestic water pipeline;
if P1 is more than P01, the communication between the expansion tank and the domestic water pipeline is controlled to be cut off, and the expansion tank is controlled to drain.
In order to effectively ensure the safety of the heating pipeline, the pressure P1 in the domestic water pipeline is compared with the safety pressure P02 of the heating pipeline in S3, wherein P02 is less than P01;
in S4, if P1 is less than P02, the expansion water tank is controlled to be respectively communicated with a domestic water pipeline and a heating pipeline box;
if P02 is not less than P1 is not less than P01, controlling to connect the expansion water tank and the domestic water pipeline, and simultaneously controlling to disconnect the expansion water tank and the heating pipeline;
if P1 is more than P01, the communication between the expansion water tank and the domestic water pipeline is controlled to be cut off, the communication between the expansion water tank and the heating pipeline is controlled to be cut off, and the expansion water tank is controlled to drain water.
In order to fully utilize the expansion and contraction quantity of the expansion water tank and effectively protect the use safety of the expansion water tank, the method also comprises the following steps:
s5, if the domestic water is not opened, controlling the expansion water tank and the domestic water pipeline to be in a disconnected state, and controlling the expansion water tank to be communicated with the heating pipeline box; simultaneously detecting the pressure P2 in a cavity communicated with the heating pipeline in the expansion water tank;
s5, if P2 is more than or equal to P02, controlling the expansion tank to drain.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a dual-purpose furnace system applying the control method of the dual-purpose furnace is characterized in that: including heating pipeline, domestic water pipeline and expansion tank, expansion tank has heating water cavity, domestic water cavity and air cavity, the heating water cavity is connected with the heating pipeline through first pipeline, the domestic water cavity is connected with the domestic water pipeline through the second pipeline, still be connected with the third pipeline that is used for the drainage on the expansion tank, the three pipeline is linked together with heating water cavity, domestic water cavity respectively, be provided with first ooff valve on the first pipeline, be provided with the second ooff valve on the second pipeline, be provided with the third ooff valve on the third pipeline.
Preferably, a first pressure sensor is arranged on the first pipeline at a position far away from the expansion tank relative to the first switch valve, and a second pressure sensor is arranged on the second pipeline at a position close to the expansion tank relative to the second switch valve.
In order to conveniently judge whether the domestic water is used, a water quantity sensor is arranged on the domestic water pipeline.
In order to facilitate the drainage of the expansion water tank, a drainage pipeline is connected to the heating pipeline, and the third pipeline is connected with the drainage pipeline.
Compared with the prior art, the invention has the advantages that: according to the control method of the dual-purpose furnace, the pressure in the domestic water pipeline is detected under the state that the domestic water is started, the pressure is compared with the safety pressure of the expansion water tank, whether the water in the expansion water tank needs to be drained or not is judged, the pressure in the expansion water tank is removed, and the use safety of the expansion water tank is guaranteed. According to the dual-purpose furnace system, the expansion water tank is connected with the third pipeline for draining water, the first pipeline, the second pipeline and the third pipeline are respectively provided with the switch valves, and the expansion water tank and the pipelines are protected under the condition of high pressure through on-off of the switch valves, so that the safe use of the expansion water tank can be ensured, and the problem that the use safety of the expansion water tank and the pipelines is affected due to different pressures in a heating pipeline and a domestic water pipeline in the use process is solved.
Drawings
FIG. 1 is a schematic view of a dual-purpose furnace system in an embodiment of the present invention.
Fig. 2 is a side view of an expansion tank in an embodiment of the present invention.
FIG. 3 is a flow chart of a control method of the dual-purpose stove 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 and 2, the dual-purpose furnace system of the present embodiment includes a combustion heat exchange device 6, a heat exchanger 7, a gas pipeline 8, a heating pipeline 1, a domestic water pipeline 2, a water drainage pipeline 5, and an expansion tank 3.
The combustion heat exchange device 6 comprises a heat exchange structure, a combustion chamber and the like, an inlet of the fuel gas pipeline 8 is connected with a fuel gas source, and an outlet of the combustion pipeline is connected with the combustion chamber of the combustion vehicle exchange device.
The heating pipeline 1 is a circulating pipeline, and a part of the heating pipeline 1 passes through the heat exchange structure of the combustion heat exchange device 6, so that heat exchange is realized, and water in the heating pipeline 1 is heated.
The inlet of the domestic water pipeline 2 is connected with a cold water source, and the domestic water pipeline 2 outputs hot water from the outlet of the domestic water pipeline 2 after heat exchange by the heat exchanger 7. Two ends of the heat exchanger 7 are connected between the water outlet section and the water inlet section of the heating pipeline 1 through a three-way valve.
The expansion tank 3 in this embodiment includes a heating water chamber 31, a domestic water chamber 32, and an air chamber 33 arranged in this order, wherein the air chamber 33 is connected to a balance source, and nitrogen is used as a balance gas in this embodiment. The heating water chamber 31 is connected with the heating pipeline 1 through the first pipeline 311, that is, water in the heating water channel enters the heating water chamber 31 through the first pipeline 311, and can also flow into the heating water channel through the heating water chamber 31, so that the heating water chamber 31 provides expansion and contraction amount for the heating water channel according to the water pressure in the heating water channel, and the stability of water supply amount in the heating water channel is ensured. The domestic water cavity 32 is connected to the domestic water pipeline 2 through the second pipeline 321, and the domestic water cavity 32 provides expansion and contraction amount for the domestic water pipeline 2 according to the water pressure in the domestic water pipeline 2, so as to ensure the stability of the water supply amount in the domestic water pipeline 2. The expansion tank 3 is further connected with a third pipeline 34 for draining water, one end of the third pipeline 34 is respectively communicated with the heating water cavity 31 and the domestic water cavity 32, and the other end of the third pipeline 34 is connected with the drainage pipeline 5. The first pipe 311 is provided with a first switch valve 312 to control the on/off of a heating water path and a heating water chamber 31 in the expansion tank 3, the second pipe 321 is provided with a second switch valve 322 to control the on/off of a domestic water pipe 2 and a domestic water chamber 32 in the expansion tank 3, and the third pipe 34 is provided with a third switch valve 341 to control the drainage work of the expansion tank 3.
In addition, a first pressure sensor 313 is disposed on the first pipeline 311 away from the expansion tank 3 with respect to the first switching valve 312, the first pressure sensor 313 can detect water pressure data at the outlet of the heating pipeline 1 in real time, and a second pressure sensor 323 is disposed on the second pipeline 321 near the expansion tank 3 with respect to the second switching valve 322, the second pressure sensor 323 can effectively detect water pressure data at the connection port of the domestic water chamber 32. The water quantity sensor 4 is arranged on the domestic water pipeline 2, and the water quantity sensor 4 can effectively detect whether the domestic water is started or not.
The first switch valve 312, the second switch valve 322, the third switch valve 341, the water amount sensor 4, the first pressure sensor 313 and the second pressure sensor 323 are all connected with a control circuit board in the dual-purpose furnace, and work under the control of the control circuit board.
In the using process, the water pressure of the domestic water is generally in the range of 0-0.3bar, but the maximum pressure can reach 15bar, the expansion water tank 3 is damaged by the excessive water pressure, and the heating pipeline 1 is also damaged if the heating pipeline 1 is not protected. The pressure range of the heating water is generally 0.5bar-3.5bar, and the heating pipeline 1 is damaged when the pressure of the heating water is more than 3.5 bar.
As shown in fig. 3, the control method of the dual-purpose furnace system includes the following steps:
s1, detecting the real-time domestic water state by using the water quantity sensor 4; if the water flow sensor 4 detects a water flow signal, the domestic water is judged to be started for use, and if the water flow sensor 4 does not detect the water flow signal, the domestic water is judged not to be started for use;
s2, when the water flow sensor 4 detects a water flow signal, and the domestic water is judged to be opened at the moment, the first pressure sensor 313 is used for detecting the pressure P1 in the domestic water pipeline 2;
s3, comparing the pressure P1 in the domestic water pipeline 2 with the safe pressure P01 of the expansion water tank 3, and simultaneously comparing the pressure P1 in the domestic water pipeline 2 with the safe pressure P02 of the heating pipeline 1, wherein P02 is less than P01; in the present embodiment, P01 may be set to 12bar, and P02 may be set to 3.5 bar.
S4, if P1 is less than P02, namely the water pressure in the domestic water pipeline 2 is not only in the safe pressure range of the heating pipeline 1, but also in the safe pressure range of the expansion water tank 3, the first switch valve 312 and the second switch valve 322 are controlled and conducted, the third switch valve 341 is closed, so that the expansion water tank 3 is respectively communicated with the domestic water pipeline 2 and the heating pipeline 1, and in the working process, the expansion water tank 3 normally plays the expansion and contraction function, so that the stable water flow in the domestic water pipeline 2 and the heating pipeline 1 is maintained;
if P02 is not less than P1 is not less than P01, that is, the water pressure in the domestic water pipeline 2 exceeds the range of the safety pressure P02 of the heating pipeline 1, but still stays in the range of the safety pressure of the expansion water tank 3, at this time, the first switch valve 312 is controlled to be conducted, the second switch valve 322 is closed, the third switch valve 341 is closed, the expansion water tank 3 is further communicated with the domestic water pipeline 2, and the communication between the expansion water tank 3 and the heating pipeline 1 is simultaneously disconnected, so that the excessive pressure in the expansion water tank 3 cannot be applied to the heating pipeline 1, the influence of the water pressure in the domestic water pipeline 2 on the heating pipeline 1 is cut off, and meanwhile, the water flow in the domestic water pipeline 2 is stabilized through the expansion and contraction action of the expansion water tank 3;
if P1 is more than P01, namely the water pressure in the domestic water pipeline 2 exceeds the safe pressure P02 range of the heating pipeline 1 and the safe pressure range of the expansion water tank 3, the safe use of the expansion water tank 3 can be threatened by overhigh pressure, the important point at the moment is the safety protection of the expansion water tank 3, the warm flow effect of the expansion water tank 3 can be temporarily abandoned when the use safety of the expansion water tank 3 is threatened, at the moment, the first switch valve 312 is controlled to be closed, the second switch valve 322 is closed, the third switch valve 341 is opened, the communication between the expansion water tank 3 and the domestic water pipeline 2 is disconnected, the communication between the expansion water tank 3 and the heating pipeline 1 is disconnected, the expansion water tank 3 is controlled to discharge water, the pressure in the expansion water tank 3 is effectively discharged, and the safety of the expansion water tank 3 is firstly ensured;
s5, if the domestic water is not opened, namely when the water flow sensor 4 does not detect a water flow signal, the second switch valve 322 is closed, the expansion water tank 3 and the domestic water pipeline 2 are controlled to be in a disconnected state, the expansion water tank 3 and the heating pipeline 1 are controlled to be communicated, so that the influence of the water pressure in the domestic water pipeline 2 on the expansion water tank 3 and the heating pipeline 1 can be effectively avoided, meanwhile, the expansion water tank 3 is utilized to play a role in warm flow of the heating pipeline 1,
meanwhile, the second pressure sensor 323 is used for detecting the water pressure in the second pipeline 321, namely, the pressure P2 in the cavity communicated with the heating pipeline 1 in the expansion water tank 3 is detected;
s5, if the pressure of the heating water cavity 31 in the expansion water tank 3 is more than or equal to P02, namely the pressure of the heating water cavity 31 in the expansion water tank 3 exceeds the safety pressure of the heating pipeline 1, the third switch valve 341 is controlled to be turned on, and then the expansion water tank 3 is drained, so that water in the domestic water cavity 32 can be squeezed into the third pipeline 34 under the high-pressure action of the heating water cavity 31 and then drained, the expansion and contraction amount in the expansion water tank 3 can be completely used for the water balance of the heating pipeline 1, the expansion of the corresponding expansion and contraction amount of the heating pipeline 1 is increased, and the water quantity stabilizing effect of the heating pipeline 1 is better.
The control method of the dual-purpose furnace of the invention also ensures the use safety of the expansion water tank 3 and the heating waterway on the basis of effectively ensuring the water quantity stability in the use process.
Claims (7)
1. A control method of a dual-purpose furnace is characterized in that: the method comprises the following steps:
s1, detecting the real-time domestic water state;
s2, if the domestic water is opened, detecting the pressure P1 in the domestic water pipeline (2);
s3, comparing the pressure P1 in the domestic water pipeline (2) with the safe pressure P01 of the expansion water tank (3);
s4, if P1 is not more than P01, controlling and communicating the expansion water tank (3) and the domestic water pipeline (2);
if P1 is more than P01, the communication between the expansion water tank (3) and the domestic water pipeline (2) is controlled to be cut off, and the expansion water tank (3) is controlled to drain water.
2. The control method of the dual-purpose furnace according to claim 1, characterized in that: s3, comparing the pressure P1 in the domestic water pipeline (2) with the safe pressure P02 of the heating pipeline (1), wherein P02 is less than P01;
in S4, if P1 is less than P02, the expansion water tank (3) is controlled to be respectively communicated with the domestic water pipeline (2) and the heating pipeline (1);
if P02 is more than or equal to P1 is more than or equal to P01, controlling to communicate the expansion water tank (3) with the domestic water pipeline (2), and simultaneously controlling to disconnect the communication between the expansion water tank (3) and the heating pipeline (1);
if P1 is more than P01, the communication between the expansion water tank (3) and the domestic water pipeline (2) is controlled to be cut off, the communication between the expansion water tank (3) and the heating pipeline (1) is controlled to be cut off, and meanwhile, the expansion water tank (3) is controlled to drain.
3. The control method of the dual-purpose furnace as set forth in claim 2, wherein: further comprising the steps of:
s5, if the domestic water is not opened, controlling the expansion water tank (3) and the domestic water pipeline (2) to be in a disconnected state, and controlling the expansion water tank (3) to be communicated with the heating pipeline (1); simultaneously detecting the pressure P2 in a cavity communicated with the heating pipeline (1) in the expansion water tank (3);
s5, if P2 is more than or equal to P02, controlling the expansion water tank (3) to drain.
4. A dual-purpose furnace system to which the control method of the dual-purpose furnace according to any one of claims 1 to 3 is applied, characterized in that: the heating water tank comprises a heating pipeline (1), a domestic water pipeline (2) and an expansion water tank (3), wherein the expansion water tank (3) is provided with a heating water cavity (31), a domestic water cavity (32) and an air cavity (33), the heating water cavity (31) is connected with the heating pipeline (1) through a first pipeline (311), the domestic water cavity (32) is connected with the domestic water pipeline (2) through a second pipeline (321), the expansion water tank (3) is further connected with a third pipeline (34) used for draining, the three pipelines are respectively communicated with the heating water cavity (31) and the domestic water cavity (32), a first switch valve (312) is arranged on the first pipeline (311), a second switch valve (322) is arranged on the second pipeline (321), and a third switch valve (341) is arranged on the third pipeline (34).
5. The dual purpose furnace system of claim 4, wherein: and a first pressure sensor (313) is arranged on the first pipeline (311) far away from the expansion water tank (3) relative to the first switch valve (312), and a second pressure sensor (323) is arranged on the second pipeline (321) close to the expansion water tank (3) relative to the second switch valve (322).
6. The dual purpose furnace system of claim 4, wherein: a water quantity sensor (4) is arranged on the domestic water pipeline (2).
7. The dual purpose furnace system of claim 4, wherein: the heating system is characterized in that a drainage pipeline (5) is connected to the heating pipeline (1), and the third pipeline (34) is connected with the drainage pipeline (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117032.4A CN110939980B (en) | 2018-09-25 | 2018-09-25 | Control method of dual-purpose furnace and dual-purpose furnace system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117032.4A CN110939980B (en) | 2018-09-25 | 2018-09-25 | Control method of dual-purpose furnace and dual-purpose furnace system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110939980A true CN110939980A (en) | 2020-03-31 |
| CN110939980B CN110939980B (en) | 2023-10-20 |
Family
ID=69904949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117032.4A Active CN110939980B (en) | 2018-09-25 | 2018-09-25 | Control method of dual-purpose furnace and dual-purpose furnace system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110939980B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100890116B1 (en) * | 2007-09-20 | 2009-03-24 | 이동호 | An upward boiler |
| KR20090054162A (en) * | 2007-11-26 | 2009-05-29 | 양철수 | Vacuum type gas separator and it's control processing |
| CN201981217U (en) * | 2010-12-29 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Circulating cooling water system of small blast-furnace tuyere sleeve |
| CN106016690A (en) * | 2016-07-06 | 2016-10-12 | 珠海格力电器股份有限公司 | Fuel gas wall-hanging stove and control method thereof |
| CN108061375A (en) * | 2017-07-27 | 2018-05-22 | 宁波方太厨具有限公司 | A kind of dual-purpose stove work system |
-
2018
- 2018-09-25 CN CN201811117032.4A patent/CN110939980B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100890116B1 (en) * | 2007-09-20 | 2009-03-24 | 이동호 | An upward boiler |
| KR20090054162A (en) * | 2007-11-26 | 2009-05-29 | 양철수 | Vacuum type gas separator and it's control processing |
| CN201981217U (en) * | 2010-12-29 | 2011-09-21 | 北京京诚科林环保科技有限公司 | Circulating cooling water system of small blast-furnace tuyere sleeve |
| CN106016690A (en) * | 2016-07-06 | 2016-10-12 | 珠海格力电器股份有限公司 | Fuel gas wall-hanging stove and control method thereof |
| CN108061375A (en) * | 2017-07-27 | 2018-05-22 | 宁波方太厨具有限公司 | A kind of dual-purpose stove work system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110939980B (en) | 2023-10-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204648636U (en) | The gas heater of built-in buffer tank | |
| JP5475049B2 (en) | Hot water storage water heater | |
| JP6032931B2 (en) | Hot water system | |
| KR102057367B1 (en) | Heat pump heat supply system | |
| CN207113201U (en) | A kind of gas heater of automatic heating and anti-freezing | |
| JP6017824B2 (en) | Hot water storage water heater | |
| JP5882119B2 (en) | Hot water storage water heater | |
| CN110939980B (en) | Control method of dual-purpose furnace and dual-purpose furnace system | |
| JP6607375B2 (en) | Auxiliary heat source machine | |
| KR101008670B1 (en) | Proportional Control Fluid Heating System | |
| CN204648637U (en) | The gas heater of built-in buffer tank | |
| KR101206945B1 (en) | Hot water system | |
| CN209165581U (en) | A kind of dual-purpose furnace system | |
| JP5712196B2 (en) | Heat pump heating system | |
| KR0153716B1 (en) | Heating apparatus | |
| JP2869700B2 (en) | Water heater | |
| JP2013002666A (en) | Hot water storage system | |
| JP5316439B2 (en) | Water heater | |
| CN206291488U (en) | A kind of water heater buffer tank | |
| JP2011021770A (en) | Water heater | |
| JP4691215B2 (en) | One can two water channel bath water heater | |
| CN108954474A (en) | A kind of gas-heating water heater and control method | |
| CN204535051U (en) | Gas heater | |
| CN2300857Y (en) | Water heater with flow stabilizer | |
| JP5859419B2 (en) | Water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |