CN110207247A - Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler - Google Patents
Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler Download PDFInfo
- Publication number
- CN110207247A CN110207247A CN201811062918.3A CN201811062918A CN110207247A CN 110207247 A CN110207247 A CN 110207247A CN 201811062918 A CN201811062918 A CN 201811062918A CN 110207247 A CN110207247 A CN 110207247A
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- Prior art keywords
- temperature
- water
- heating
- heat exchanger
- switch valve
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 159
- 238000010438 heat treatment Methods 0.000 claims abstract description 88
- 239000000523 sample Substances 0.000 claims abstract description 76
- 239000008236 heating water Substances 0.000 claims abstract description 39
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F24D15/00—Other domestic- or space-heating systems
-
- 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
Abstract
The invention discloses a waterway system of a household wall-mounted furnace, which comprises a primary side heat exchanger, a water outlet pipeline, a heating water return pipeline, a radiator, a switch valve, a first temperature probe, a second temperature probe and a heat exchange unit, wherein the water outlet end of the primary side heat exchanger is communicated with the water inlet end of the primary side heat exchanger through the water outlet pipeline, the radiator and the heating water return pipeline in sequence to form a heating water return loop, and the switch valve is arranged on the water outlet pipeline and is positioned between the water outlet end of the primary side heat exchanger and the radiator; a bypass of the switch valve is communicated with a heating water return pipeline through a heat exchange unit to form a heating water return heating loop; the first temperature probe is arranged between the water inlet end and the water inlet end of the primary side heat exchanger and the communication part of the heat exchange unit and the heating water return pipeline, and the second temperature probe is arranged between the water outlet end of the primary side heat exchanger and the switch valve; also discloses a household wall-mounted boiler and a control method thereof; the invention can reduce the generation of condensed water on the primary side heat exchanger.
Description
Technical field
The invention belongs to wall-hung boiler technical fields, and in particular to a kind of water circuit system of Domestic wall furnace, Domestic wall furnace
And its control method.
Background technique
Existing wall-hung boiler is in heating state, when heating return water temperature is lower, can generate in primary side heat exchanger big
The condensed water of amount；In same burning load and inflow temperature, condensed water on primary side fin is once generate, and meeting is increasingly
It is more；And influence of the generation of primary side heat exchanger condensed water to product is very big, gently then causes to fall under condensed water in fire row, shadow
The stability of flame is rung, fast erosion that is heavy then leading to complete machine heat exchanger and burner influences product reliability.
Summary of the invention
In order to overcome the above-mentioned problems of the prior art, the main purpose of the present invention is to provide a kind of Domestic wall furnaces
Water circuit system, Domestic wall furnace and its control method.
To achieve the goals above, the present invention specifically uses following technical scheme:
The embodiment of the present invention provides a kind of water circuit system of Domestic wall furnace, including primary side heat exchanger, outlet pipeline, adopts
Warm water return pipeline, radiator, switch valve, first temperature probe, second temperature probe, heat exchange unit, the primary side heat exchanger
Water outlet pass sequentially through the outlet pipeline, radiator, heating water return pipeline connection primary side heat exchanger water inlet end formed
Heating water return loop, the switch valve be arranged on outlet pipeline and be located at primary side heat exchanger water outlet and radiator it
Between；The bypass of the switch valve is connected to form heating return water warm-up circuit with heating water return pipeline through heat exchange unit；Described first
Temp probe be arranged in primary side heat exchanger water inlet end and water inlet end and heat exchange unit and heating water return pipeline connectivity part it
Between, the second temperature probe is arranged between the water outlet and switch valve of primary side heat exchanger.
It further include water pump in above scheme, the water pump is located at first temperature probe and heat exchange unit and heating return pipe
Between the connectivity part of road.
In above scheme, the heat exchange unit includes plate heat exchanger.
In above scheme, the heat exchange unit further includes third temp probe, and the third temp probe is set to described
The water outlet of plate heat exchanger.
Further include controller in above scheme, the controller respectively with switch valve, the first water temperature probe, second temperature
Probe connection.
It further include display in above scheme, the first temperature probe, second temperature probe and third temp probe point
It is not connect with the display.
The embodiment of the present invention also provides a kind of Domestic wall furnace, including furnace body, burner and any one of such as above scheme
The water circuit system of the Domestic wall furnace, the burner and water circuit system are respectively arranged in the furnace body, the burning
Device is used to heat for the water circuit system.
The embodiment of the present invention also provides a kind of control method, this method are as follows: wall-hung boiler meets heating entry condition and supplied
After warm burning, when first temperature T1 the first temperature threshold of < of first temperature probe acquisition, and second temperature probe acquisition
When second temperature T2≤heating stops temperature, the bypass of the switch valve is opened, heating return water warm-up circuit is connected.
In above scheme, the bypass for opening the switch valve, after heating return water warm-up circuit is connected, this method is also
Include: the continuous heating with heating, when the second temperature T2 > second temperature threshold value, turns the bypass of the switch valve down
Aperture, maintain the first temperature T1 be between the first temperature threshold and second temperature threshold value.
In above scheme, this method further include: when the first temperature threshold of the third temperature T3 <, and the second temperature
When T2 > heating stops temperature, stop heating heating.
In above scheme, this method further include: when the first temperature threshold≤third temperature T3≤second temperature threshold value, and
When two temperature T2≤heating temperature, the switch valve opening, continuous heating heating are maintained.
In above scheme, this method further include: this method further include: when the first temperature threshold≤third temperature T3≤the second
Temperature threshold, and when second temperature T2 > heating temperature, turn the aperture of the bypass of the switch valve down.
Compared with prior art, under heating water return loop of the invention is in the conductive state, when the first temperature probe
When collecting the water inlet end water temperature of primary side heat exchanger lower than threshold value, acquired according to first temperature probe, second temperature probe
Water temperature difference determines the conducting of heating return water warm-up circuit, so that a part of high-temperature water in water outlet path pipeline can be by opening
The bypass for closing valve is flowed into heating water return pipeline through heat exchange unit, to neutralize return water temperature, makes heating return water temperature always
Higher than the flue gas dew point temperature under the real-time heat load of complete machine, reduce the generation of the condensed water on primary side heat exchanger, improves
The service life of complete machine and components.
Detailed description of the invention
Fig. 1 is the water circuit system structural schematic diagram of the Domestic wall furnace of the embodiment of the present invention；
Fig. 2 is the flow chart of the control method of the embodiment of the present invention；
In figure, 1, primary side heat exchanger；2, outlet pipeline；3, heating water return pipeline；4, radiator；5, switch valve；6,
One temp probe；7, second temperature probe；8, heat exchange unit；81, plate heat exchanger；82, third temp probe；9, water pump.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The embodiment of the present invention provides a kind of water circuit system of Domestic wall furnace, as shown in Figure 1, include primary side heat exchanger 1,
Outlet pipeline 2, heating water return pipeline 3, radiator 4, switch valve 5, first temperature probe 6, second temperature probe 7, heat exchange unit
8, the water outlet of the primary side heat exchanger 1 passes sequentially through the outlet pipeline 2, radiator 4, the connection of heating water return pipeline 3 one
The water inlet end of secondary side heat exchanger 1 forms heating water return loop, and the switch valve 5 is arranged on outlet pipeline 2 and is located at primary
Between the water outlet and radiator 4 of side heat exchanger 1；The bypass of the switch valve 5 connects through heat exchange unit 8 and heating water return pipeline 3
It is logical to form heating return water warm-up circuit；The water inlet end of the water inlet end sum of primary side heat exchanger 1 is arranged in the first temperature probe 6
Between 3 connectivity part of heat exchange unit 8 and heating water return pipeline, going out for primary side heat exchanger 1 is arranged in the second temperature probe 7
Between water end (W.E.) and switch valve 5；In this way, under the heating water return loop is in the conductive state, when the first temperature probe 6 acquires
To primary side heat exchanger 1 water inlet end water temperature be lower than threshold value when, according to first temperature probe 6, second temperature probe 7 acquire water
Warm temperature difference determines the conducting of heating return water warm-up circuit, so that a part of high-temperature water in water outlet path pipeline 2 can be by opening
The bypass for closing valve 5 is flowed into heating water return pipeline 3 through heat exchange unit 8, to neutralize return water temperature, heating return water temperature is made to begin
The flue gas dew point temperature being higher than under the real-time heat load of complete machine eventually, reduces the generation of the condensed water on primary side heat exchanger, mentions
The high service life of complete machine and components.
It further, further include water pump 9, the water pump 9 is located at first temperature probe 6 and heat exchange unit 8 and heating return pipe
Between 3 connectivity part of road, for returning the water pump in heating water return pipeline 3 in primary side heat exchanger 1, warm return water heating can be accelerated
The cycle efficieny in circuit and warm return water warm-up circuit.
The heat exchange unit 8 includes plate heat exchanger 81.
The water outlet of the plate heat exchanger 8 is connected to water outlet connector, to be added domestic water by plate heat exchanger 8
For people's bathing, wash vegetables etc. after heat.
The heat exchange unit 8 further includes third temp probe 82, and the third temp probe 82 is set to described board-like change
The water outlet of hot device 81, in this way, passing through the water temperature in third temp probe 82 in real time acquisition plate heat exchanger 81.
Further, further include controller, the controller respectively with switch valve 5, the first water temperature pop one's head in 6, second temperature
7 connection of probe.
When the first temperature probe 6 collects the water inlet end water temperature of primary side heat exchanger 1 lower than threshold value, controller root
The conducting of heating return water warm-up circuit is determined according to the water temperature difference that first temperature probe 6, second temperature probe 7 acquire, so that
A part of high-temperature water in water outlet path pipeline 2 can be flowed into heating water return pipeline through heat exchange unit 8 by the bypass of switch valve 5
In 3, to neutralize return water temperature.
It further, further include display, the first temperature probe 6, second temperature probe 7 and third temp probe 82 divide
It is not connect with the display, constantly shows that the temperature, the temperature of heating water outlet and life of heating return water are used by the display
The temperature of hot water.
The switch valve 5 uses triple valve.
The embodiment of the present invention also provides a kind of Domestic wall furnace, which includes furnace body, burner and household wall
The water circuit system of furnace is hung, the burner and water circuit system are respectively arranged in furnace body, which is used to add for the water circuit system
Heat.
As shown in Figure 1, the water circuit system of the Domestic wall furnace includes primary side heat exchanger 1, outlet pipeline 2, heating time
Water lines 3, radiator 4, switch valve 5, first temperature probe 6, second temperature probe 7, heat exchange unit 8, the primary side heat exchange
The water outlet of device 1 passes sequentially through the water inlet that the outlet pipeline 2, radiator 4, heating water return pipeline 3 are connected to primary side heat exchanger 1
End forms heating water return loop, and the water outlet on outlet pipeline 2 and being located at primary side heat exchanger 1 is arranged in the switch valve 5
Between radiator 4；The bypass of the switch valve 5 is connected to form the heating of heating return water with heating water return pipeline 3 through heat exchange unit 8
Circuit；The first temperature probe 6 be arranged in primary side heat exchanger 1 water inlet end and water inlet end and heat exchange unit 8 and heating
Between 3 connectivity part of water return pipeline, the second temperature probe 7 be arranged in primary side heat exchanger 1 water outlet and switch valve 5 it
Between；In this way, under the heating water return loop is in the conductive state, when the first temperature probe 6 collects primary side heat exchanger 1
Water inlet end water temperature be lower than threshold value when, according to first temperature probe 6, second temperature probe 7 acquire water temperature difference determination adopts
The conducting of warm return water warm-up circuit, so that a part of high-temperature water in water outlet path pipeline 2 can be by the bypass of switch valve 5 through changing
Hot cell 8 is flowed into heating water return pipeline 3, to neutralize return water temperature, so that heating return water temperature is consistently higher than complete machine real-time
Flue gas dew point temperature under heat load reduces the generation of the condensed water on primary side heat exchanger, improves complete machine and zero
The service life of part.
It further, further include water pump 9, the water pump 9 is located at first temperature probe 6 and heat exchange unit 8 and heating return pipe
Between 3 connectivity part of road, for returning the water pump in heating water return pipeline 3 in primary side heat exchanger 1, warm return water heating can be accelerated
The cycle efficieny in circuit and warm return water warm-up circuit.
The heat exchange unit 8 includes plate heat exchanger 81.
The water outlet of the plate heat exchanger 8 is connected to water outlet connector, to be added domestic water by plate heat exchanger 8
For people's bathing, wash vegetables etc. after heat.
The heat exchange unit 8 further includes third temp probe 82, and the third temp probe 82 is set to described board-like change
The water outlet of hot device 81, in this way, passing through the water temperature in third temp probe 82 in real time acquisition plate heat exchanger 81.
Further, further include controller, the controller respectively with switch valve 5, the first water temperature pop one's head in 6, second temperature
7 connection of probe.
When the first temperature probe 6 collects the water inlet end water temperature of primary side heat exchanger 1 lower than threshold value, controller root
The conducting of heating return water warm-up circuit is determined according to the water temperature difference that first temperature probe 6, second temperature probe 7 acquire, so that
A part of high-temperature water in water outlet path pipeline 2 can be flowed into heating water return pipeline through heat exchange unit 8 by the bypass of switch valve 5
In 3, to neutralize return water temperature.
It further, further include display, the first temperature probe 6, second temperature probe (7 and third temp probe 82
It is connect respectively with the display, the temperature of heating return water, the temperature and life of heating water outlet is constantly shown by the display
With the temperature of hot water.
The embodiment of the present invention also provides a kind of control method, as shown in Fig. 2, this method are as follows: wall-hung boiler meets heating starting
After condition carries out heating burning, when first temperature T1 the first temperature threshold of < that first temperature probe 6 acquires, and second temperature
When second temperature T2≤heating of 7 acquisition of probe stops temperature, the bypass of the switch valve 5, conducting heating return water heating are opened
Circuit.
The heating water return loop is continuously on state.
The bypass for opening the switch valve 5, after heating return water warm-up circuit is connected, this method further include: with
The continuous heating of heating turns the aperture of the bypass of the switch valve 5 down when the second temperature T2 > second temperature threshold value,
The first temperature T1 is maintained to be between the first temperature threshold and second temperature threshold value.
When the first temperature threshold of the third temperature T3 <, and when second temperature T2 > heating stopping temperature, stop
Heating heating.
This method further include: when the first temperature threshold≤third temperature T3≤second temperature threshold value, and second temperature T2≤
When heating temperature, 5 aperture of switch valve, continuous heating heating are maintained.
This method further include: this method further include: when the first temperature threshold≤third temperature T3≤second temperature threshold value, and
When second temperature T2 > heating temperature, the aperture of the bypass of the switch valve 5 is turned down.
For example, after wall-hung boiler activation heating function, if meeting heating entry condition, wall-hung boiler starting heating burning:
The heating entry condition that meets is that return difference temperature, 2, T2≤setting temperature-return difference temperature are arranged in T2-T3 >=heating
Degree.
1) when monitoring 30 DEG C of T3 <, and when T2≤heating stopping temperature, start triple valve, conducting heating return water heats up back
Road when guaranteeing T3 >=30 DEG C, maintains the current aperture heating heating of triple valve to neutralize return water temperature；
2) with the continuous heating of heating, the return water temperature of heating water return loop can be gradually risen, when 40 DEG C of T3 >, three
Port valve rotates backward certain angle, turns the conducting water flow of heating return water warm-up circuit down, until T3≤40 DEG C, remain T3
Temperature is between 30-40；
3) in heating process, if wall-hung boiler stops heating heating when 30 DEG C of T3 < but T2 > heating stopping temperature；
4) when 30 DEG C≤T3≤40 DEG C and T2≤heating temperature, threeway valve opening, continuous heating heating are maintained；
5) when 30 DEG C≤T3≤40 DEG C and T2 > heating temperature, triple valve counteragent turns down the conducting water flow of circulation A
Amount reduces T3 temperature；
6) no matter triple valve is in any state, always with the raising of heating return water temperature, is guaranteeing T3 >=30 DEG C
Under the premise of, the aperture regulation of heating return water warm-up circuit is guaranteed into the heat supply of heating water return loop with this to minimum as far as possible
Amount.
In order to guarantee that the detection accuracy of T2, T3 temperature, every one step-length of movement of triple valve stop 1min.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (12)
1. a kind of water circuit system of Domestic wall furnace, which is characterized in that including primary side heat exchanger (1), outlet pipeline (2), adopt
Warm water return pipeline (3), radiator (4), switch valve (5), first temperature probe (6), second temperature probe 7, heat exchange unit (8),
The water outlet of the primary side heat exchanger (1) passes sequentially through the outlet pipeline (2), radiator (4), heating water return pipeline (3)
The water inlet end for being connected to primary side heat exchanger (1) forms heating water return loop, and the switch valve (5) is arranged on outlet pipeline (2)
And it is located between the water outlet and radiator (4) of primary side heat exchanger (1)；The bypass of the switch valve (5) is through heat exchange unit
(8) it is connected to form heating return water warm-up circuit with heating water return pipeline (3)；The first temperature probe (6) is arranged in primary side
The water inlet end of heat exchanger (1) and water inlet end and heat exchange unit (8) and heating water return pipeline (3) connectivity part between, described second
Temp probe 7) it is arranged between the water outlet and switch valve (5) of primary side heat exchanger (1).
2. a kind of water circuit system of Domestic wall furnace according to claim 1, which is characterized in that further include water pump (9), institute
Water pump (9) is stated to be located between first temperature probe (6) and heat exchange unit (8) and heating water return pipeline (3) connectivity part.
3. a kind of water circuit system of Domestic wall furnace according to claim 2, which is characterized in that the heat exchange unit (8)
Including plate heat exchanger (81).
4. a kind of water circuit system of Domestic wall furnace according to claim 3, which is characterized in that the heat exchange unit (8)
It further include third temp probe (82), the third temp probe (82) is set to the water outlet of the plate heat exchanger (81).
5. a kind of water circuit system of Domestic wall furnace according to any one of claims 1-4, which is characterized in that further include
Controller, the controller are connect with switch valve (5), the first water temperature probe (6), second temperature probe (7) respectively.
6. a kind of water circuit system of Domestic wall furnace according to claim 5, which is characterized in that it further include display, institute
First temperature probe (6), second temperature probe (7) and third temp probe (82) is stated to connect with the display respectively.
7. a kind of Domestic wall furnace, which is characterized in that including furnace body, burner and such as family as claimed in any one of claims 1 to 6
With the water circuit system of wall-hung boiler, the burner and water circuit system are respectively arranged in the furnace body, and the burner is for being
The water circuit system heating.
8. a kind of control method, which is characterized in that this method are as follows: wall-hung boiler meets after heating entry condition carries out heating burning,
When first temperature T1 first temperature threshold of < of first temperature probe (6) acquisition, and the second of second temperature probe (7) acquisition
When temperature T2≤heating stops temperature, the bypass of the switch valve (5) is opened, heating return water warm-up circuit is connected.
9. control method according to claim 8, which is characterized in that the bypass for opening the switch valve (5), conducting
After heating return water warm-up circuit, this method further include: with the continuous heating of heating, when second temperature of second temperature T2 >
When spending threshold value, the aperture of the bypass of the switch valve (5) is turned down, the first temperature T1 is maintained to be in the first temperature threshold and the second temperature
It spends between threshold value.
10. control method according to claim 9, which is characterized in that this method further include: as the third temperature T3 <
First temperature threshold, and when second temperature T2 > heating stopping temperature, stop heating heating.
11. control method according to claim 10, which is characterized in that this method further include: when the first temperature threshold≤
Third temperature T3≤second temperature threshold value, and when second temperature T2≤heating temperature, the switch valve (5) aperture is maintained, is continued
Heating.
12. control method according to claim 11, which is characterized in that this method further include: this method further include: when
One temperature threshold≤third temperature T3≤second temperature threshold value, and when second temperature T2 > heating temperature, turn the switch valve down
(5) aperture of bypass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062918.3A CN110207247A (en) | 2018-09-12 | 2018-09-12 | Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811062918.3A CN110207247A (en) | 2018-09-12 | 2018-09-12 | Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110207247A true CN110207247A (en) | 2019-09-06 |
Family
ID=67780060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811062918.3A Pending CN110207247A (en) | 2018-09-12 | 2018-09-12 | Waterway system of household wall-mounted boiler, household wall-mounted boiler and control method of household wall-mounted boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110207247A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174275A (en) * | 2019-12-31 | 2020-05-19 | 华帝股份有限公司 | Anti-freezing control method and anti-freezing system of wall-mounted boiler |
| CN111853926A (en) * | 2020-06-01 | 2020-10-30 | 深圳市合信达控制系统有限公司 | Method, device, terminal and storage medium for preventing wall-hanging stove from generating condensed water |
| CN115540030A (en) * | 2022-09-23 | 2022-12-30 | 宁波奥克斯电气股份有限公司 | Control method of heat pump system, heat pump system and storage medium |
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| CN209310112U (en) * | 2018-09-12 | 2019-08-27 | 华帝股份有限公司 | Waterway system of household wall-mounted furnace and household wall-mounted furnace |
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| JPH1183181A (en) * | 1997-09-16 | 1999-03-26 | Paloma Ind Ltd | Hot water delivery controller for bypass mixing hot water supply unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174275A (en) * | 2019-12-31 | 2020-05-19 | 华帝股份有限公司 | Anti-freezing control method and anti-freezing system of wall-mounted boiler |
| CN111174275B (en) * | 2019-12-31 | 2021-06-08 | 华帝股份有限公司 | Anti-freezing control method and anti-freezing system of wall-mounted boiler |
| CN111853926A (en) * | 2020-06-01 | 2020-10-30 | 深圳市合信达控制系统有限公司 | Method, device, terminal and storage medium for preventing wall-hanging stove from generating condensed water |
| CN115540030A (en) * | 2022-09-23 | 2022-12-30 | 宁波奥克斯电气股份有限公司 | Control method of heat pump system, heat pump system and storage medium |
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