CN106986419A - It is a kind of to monitor the composite boiler softened water equipment of bating effect in fact - Google Patents
It is a kind of to monitor the composite boiler softened water equipment of bating effect in fact Download PDFInfo
- Publication number
- CN106986419A CN106986419A CN201710362341.7A CN201710362341A CN106986419A CN 106986419 A CN106986419 A CN 106986419A CN 201710362341 A CN201710362341 A CN 201710362341A CN 106986419 A CN106986419 A CN 106986419A
- Authority
- CN
- China
- Prior art keywords
- case
- water
- dissolved salt
- storage tank
- commuting case
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- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The composite boiler softened water equipment of bating effect can be monitored in fact the invention discloses a kind of, including motor, dissolved salt case, water tank, storage tank and commuting case, the bottom of the commuting case is provided with control cabinet, and the top of commuting case is provided with water tank, the side of the control cabinet is provided with dissolved salt case, and the opposite side of control cabinet is provided with storage tank, the middle position at the dissolved salt bottom end is provided with motor, conductivity sensor is installed at the inside of the storage tank bottom, and bottom of the storage tank away from commuting case side is provided with delivery port, the inside of the water tank bottom is provided with pressure sensor.The present invention can be filtered, the impurity in water can be filtered by being provided with primarily efficient filter layer and activated carbon filter layer in water tank to water, it can be prevented effectively from because the impurity in water enters in boiler, it is deposited on furnace wall so that boiler heat-transfer performance is reduced, energy resource consumption increase.
Description
Technical field
It is specially a kind of to monitor the combined type of bating effect in fact the present invention relates to boiler soft water equipment technical field
Boiler soft water equipment.
Background technology
It is well known that boiler plant can safety and economic operation, water treatment be it is very important, boiler feedwater without
Handle or deal with improperly, the inevitable fouling on heating surface makes furnace wall heat transfer property reduction, and increase fuel performance consumption can also be produced
Raw corrosion, or even cause an explosion accident, particularly in the larger area of water hardness, first make mostly before to boiler water supply at present
Water is softened with softened water equipment, to ensure that safe and economical boiler is run, boiler efficiency is improved, prolonged boiler uses the longevity
Life, existing boiler soft water equipment lacks before softening to water, mostly to water purifying means so that the impurity in water
It is deposited in device, even into boiler so that furnace wall heat transfer property is reduced, existing boiler soft water equipment lacks mostly
Back washing device, even if being provided with back washing device, is also directly to mix salt with water, is directly added into back washing device, can not control
The ratio of salt and water in the salt manufacturing aqueous solution, and salt dissolved in water and it is uneven, the regeneration to resin causes totally unfavorable
Influence, existing boiler soft water equipment lacks the monitoring device to water after softening, is reduced in resin ion activity, bating effect
After reduction, it is impossible to learn in time.
The content of the invention
The composite boiler softened water equipment of bating effect can be monitored in fact it is an object of the invention to provide a kind of, to solve
The problem of being proposed in certainly above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：It is a kind of to monitor the combined type of bating effect in fact
Boiler soft water equipment, including motor, dissolved salt case, water tank, storage tank and commuting case, the bottom of the commuting case is provided with control
Case, and the top of commuting case is provided with water tank, the side of the control cabinet is provided with dissolved salt case, and the opposite side of control cabinet is installed
There is storage tank, the bottom of the control cabinet side, which is provided with control panel, and control panel, is provided with display screen, the control
The inside of case is provided with single-chip microcomputer, and the middle position of the commuting case inner bottom is provided with the second suction pump, and second takes out
The output end of water pump is provided with the second water pipe, the top that second water pipe runs through inside the side of commuting case, the commuting case
Uniform be provided with cotton rope, and cotton rope is uniformly fixed with permeable net, and the outside of permeable net has wrapped resin balls, the commuting case
The internal top close to dissolved salt case side is provided with level sensor, and the middle position at the dissolved salt bottom end is provided with electricity
Machine, and the top of motor is provided with rotating shaft, the top of rotating shaft vertically passes through the bottom of dissolved salt case, and the top of the rotating shaft is provided with
Stirring vane, the dissolved salt case is provided with away from the bottom being provided with the top of commuting case side inside charging aperture, and dissolved salt case
First suction pump, the output end of the first suction pump is connected by the first water pipe with commuting case, the inside of the storage tank bottom
Place is provided with conductivity sensor, and bottom of the storage tank away from commuting case side is provided with delivery port, the top of the storage tank
The bottom that the middle position at end is provided with inside buzzer, the storage tank is provided with the 3rd suction pump, and the 3rd suction pump
Input the 3rd water pipe is installed, the top of the 3rd water pipe extends to the inside of commuting case, the water through storage tank
The top of case is provided with water inlet, and the top that is provided with inside pressure sensor, the water tank of inside of water tank bottom is installed
Active charcoal filter layer, and the top of activated carbon filter layer is provided with primarily efficient filter layer, the water tank is close to dissolved salt case side
Bottom is provided with the first aqueduct, and the bottom of the first aqueduct is connected with the top of dissolved salt case, and the water tank is close to water storage
The bottom of case side is provided with the second aqueduct, and the bottom of the second aqueduct is connected with the top of commuting case, the water level
The output end of sensor is electrically connected with by the input of wire and single-chip microcomputer, and the output end of the conductivity sensor is by leading
The input of line and single-chip microcomputer is electrically connected with.
It is preferred that, one end of the dissolved salt case, which is provided with transparent window, and transparent window, is provided with graduation mark.
It is preferred that, it is fixed with sound panel on the side wall of the dissolved salt case.
It is preferred that, one end of the commuting case is provided with cabinet door, and to be provided with rubber close for the junction of cabinet door and commuting case
Packing.
It is preferred that, the top of the water inlet is provided with closure.
Compared with prior art, the beneficial effects of the invention are as follows：The composite boiler softened water equipment, by being provided with friendship
Case, dissolved salt case and water tank are changed, softening plant is combined with back washing device, makes whole device function more comprehensively, and pass through
Pressure sensor is installed in water tank, the consumption of water can be learnt, is easy to adjust the ratio of salt and water in saline solution, and is led to
Cross and motor and stirring vane are installed in fused salt case, salt can be made to be dissolved in water evenly, be conducive to improving resin
Regeneration efficiency, by being provided with primarily efficient filter layer and activated carbon filter layer in water tank, can be filtered to water, miscellaneous in water
Matter can be filtered, and can be prevented effectively from the impurity in water and be entered in boiler, be deposited on furnace wall, so that boiler heat-transfer performance
Reduction, energy resource consumption increase, and by being provided with conductivity sensor in storage tank, water quality can be monitored in real time, and pass through
Single-chip microcomputer control buzzer is installed to be alarmed so that operating personnel can learn softened water quality situation at any time, and to device
Carry out backwash.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is resin balls schematic diagram of the invention；
Fig. 3 is front view of the invention.
In figure：1- motors；2- rotating shafts；3- stirring vanes；4- dissolved salt casees；5- charging apertures；The aqueducts of 6- first；7- water levels are passed
Sensor；8- water tanks；The suction pumps of 9- first；The water pipes of 10- first；The suction pumps of 11- second；12- single-chip microcomputers；13- control cabinets；14- is stored up
Water tank；15- conductivity sensors；16- water inlets；17- primarily efficient filters layer；18- activated carbon filter layers；The aqueducts of 19- second；
20- pressure sensors；21- cotton ropes；22- permeable nets；23- resin balls；24- commuting cases；25- buzzers；The water pipes of 26- second；27-
3rd water pipe；28- delivery ports；The suction pumps of 29- the 3rd；30- cabinet doors；31- display screens；32- control panels.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1-3, a kind of embodiment that the present invention is provided：It is a kind of to monitor the composite boiler of bating effect in fact
Softened water equipment, including motor 1, dissolved salt case 4, water tank 8, storage tank 14 and commuting case 24, the bottom of commuting case 24 is provided with control
Case 13 processed, and the top of commuting case 24 is provided with water tank 8, one end of commuting case 24 is provided with cabinet door 30, and cabinet door 30 is with exchanging
The junction of case 24 is provided with rubber gasket, and the side of control cabinet 13 is provided with dissolved salt case 4, and one end of dissolved salt case 4 is provided with
It is provided with transparent window, and transparent window on graduation mark, the side wall of dissolved salt case 4 and is fixed with sound panel, and control cabinet 13 is another
Side is provided with storage tank 14, the bottom of the side of control cabinet 13 be provided with control panel 32, and control panel 32 be provided with it is aobvious
Display screen 31, the inside of control cabinet 13 is provided with single-chip microcomputer 12, and single-chip microcomputer 12 can be in AT89C51 single-chip microcomputers, commuting case 24 herein
The middle position of portion bottom is provided with the second suction pump 11, and the second suction pump 11 can be ISGD single-stage water pumps, and second herein
The output end of suction pump 11 is provided with the second water pipe 26, and the second water pipe 26 runs through inside the side of commuting case 24, commuting case 24
Top, which is uniformly provided with cotton rope 21, and cotton rope 21, is uniformly fixed with permeable net 22, and the outside of permeable net 22 has wrapped resin
Ball 23, the inside of commuting case 24 is provided with level sensor 7 close to the top of the side of dissolved salt case 4, and level sensor 7 can be herein
WMB-FS level sensors, the middle position of the bottom of dissolved salt case 4 is provided with motor 1, and motor 1 can be Y90S-2 motors herein,
And the top of motor 1 is provided with rotating shaft 2, the top of rotating shaft 2 vertically passes through the bottom of dissolved salt case 4, and the top of rotating shaft 2, which is provided with, to be stirred
Blade 3 is mixed, dissolved salt case 4 is provided with away from the bottom being provided with the top of the side of commuting case 24 inside charging aperture 5, and dissolved salt case 4
First suction pump 9, the first suction pump 9 can be ISGD single-stage water pumps herein, and the output end of the first suction pump 9 passes through the first water pipe 10
It is connected with commuting case 24, conductivity sensor 15 is installed at the inside of the bottom of storage tank 14, herein conductivity sensor 15
Can be M344481 conductivity sensors, and bottom of the storage tank 14 away from the side of commuting case 24 is provided with delivery port 28, storage tank
The bottom that the middle position on 14 top is provided with inside buzzer 25, storage tank 14 is provided with the 3rd suction pump 29, herein
3rd suction pump 29 can be ISGD single-stage water pumps, and the input of the 3rd suction pump 29 is provided with the 3rd water pipe 27, the 3rd water pipe
27 top extends to the inside of commuting case 24 through storage tank 14, and the top of water tank 8 is provided with water inlet 16, water inlet 16
Top is provided with closure, and the inside of the bottom of water tank 8 is provided with pressure sensor 20, and pressure sensor 20 can be herein
Top inside CYYZ11 pressure sensors, water tank 8 is provided with activated carbon filter layer 18, and the top peace of activated carbon filter layer 18
Equipped with primarily efficient filter layer 17, water tank 8 is provided with the first aqueduct 6 close to the bottom of the side of dissolved salt case 4, and the first aqueduct 6
Bottom is connected with the top of dissolved salt case 4, and water tank 8 is provided with the second aqueduct 19, and close to the bottom of the side of storage tank 14
The bottom of two aqueducts 19 is connected with the top of commuting case 24, and the output end of the level sensor 7 passes through wire and monolithic
The input of machine 12 is electrically connected with, and the output end of the conductivity sensor 15 is electrical by the input of wire and single-chip microcomputer 12
Connection.
Operation principle：Before use, first device switches on power, water, the pressure sensing of the bottom of water tank 8 are added into water tank 8
Device 20 is monitored in real time, and is come out data display by the display screen 31 on control panel 32, allows operating personnel to understand the use of water
Amount, is added after appropriate water, opens the second aqueduct 19, and water is flowed into commuting case 24, then fastens the second aqueduct 19, and water is being handed over
Change in case 24 and resin balls 23 carry out ion conversion, so that water is softened, after softening terminates, opened by control panel 32
Water is pumped into storage tank 14 by the 3rd suction pump 29, the 3rd suction pump 29 by the 3rd water pipe 27, the conductance of the bottom of storage tank 14
Rate sensor 15 is monitored in real time, and transfers data to single-chip microcomputer 12, when the data that conductivity sensor 15 is monitored are more than list
During piece 12 default threshold value of machine, the control buzzer 25 of single-chip microcomputer 12 sends the sound and alarmed, and then operating personnel pass through control
Panel 32 closes the 3rd suction pump 29, and opens the second suction pump 11 by control panel 32, and the second suction pump 11 passes through the
Waste water in water tank 8 is extracted out and gone by two water pipes 26, opens the first aqueduct 6 again afterwards, appropriate water is injected into dissolved salt case 4
Afterwards, then put the first aqueduct 6 into, and appropriate salt is added into dissolved salt case 4 by charging aperture 5, open motor 1, motor 1 passes through
Rotating shaft 2 drives the rotation of stirring vane 3 to be stirred, and makes salt solution dissolving evenly, after stirring terminates, closes motor 1, passes through control
Panel 32 processed opens the first suction pump 9, and saline solution is pumped into commuting case 24 by the first suction pump 9 by the first water pipe 10, salt
The aqueous solution carries out regenerative process with resin balls 23, during saline solution to be pumped into the first suction pump 9 commuting case 24, commuting case
The level sensor 7 at 24 tops is monitored in real time, and the data monitored are transferred into single-chip microcomputer 12, when the data monitored are more than
During the threshold value of single-chip microcomputer 12, single-chip microcomputer 12 controls the first suction pump 9 to be stopped, after regeneration ending, by control panel 32 dozens
The second suction pump 11 is driven, the second suction pump 11 extracts waste liquid out commuting case 24, the second aqueduct 19 opened afterwards, to commuting case 24
Add after appropriate water, fasten the second aqueduct 19, water is opened to being rinsed in commuting case 24 finally by control panel 32
Second suction pump 11, the second suction pump 11 extracts the waste water after flushing out, after operation terminates, and closes power supply.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the claim involved by limitation.
Claims (5)
1. a kind of can monitor the composite boiler softened water equipment of bating effect, including motor (1), dissolved salt case (4), water tank in fact
(8), storage tank (14) and commuting case (24), it is characterised in that：The bottom of the commuting case (24) is provided with control cabinet (13), and
The top of commuting case (24) is provided with water tank (8), and the side of the control cabinet (13) is provided with dissolved salt case (4), and control cabinet
(13) opposite side is provided with storage tank (14), and the bottom of control cabinet (13) side is provided with control panel (32), and control
Display screen (31) is installed, the inside of the control cabinet (13) is provided with single-chip microcomputer (12), the commuting case on panel (32) processed
(24) middle position of inner bottom is provided with the second suction pump (11), and the output end of the second suction pump (11) is provided with
Two water pipes (26), second water pipe (26) runs through the side of commuting case (24), and the internal top of the commuting case (24) is uniform
It is provided with cotton rope (21), and cotton rope (21) and is uniformly fixed with permeable net (22), the outside of permeable net (22) has wrapped resin
Ball (23), the internal top close to dissolved salt case (4) side of the commuting case (24) is provided with level sensor (7), the dissolved salt
The middle position of case (4) bottom is provided with motor (1), and the top of motor (1) is provided with rotating shaft (2), the top of rotating shaft (2)
The vertical bottom through dissolved salt case (4), the top of the rotating shaft (2) is provided with stirring vane (3), and the dissolved salt case (4) is remote
Charging aperture (5) is provided with the top of commuting case (24) side, and the internal bottom of dissolved salt case (4) is provided with the first suction pump (9),
The output end of first suction pump (9) is connected by the first water pipe (10) with commuting case (24), storage tank (14) bottom
Internal place is provided with conductivity sensor (15), and bottom of the storage tank (14) away from commuting case (24) side is provided with delivery port
(28), the middle position on the top of the storage tank (14) is provided with buzzer (25), the internal bottom of the storage tank (14)
End is provided with the 3rd suction pump (29), and the input of the 3rd suction pump (29) is provided with the 3rd water pipe (27), the 3rd water
The top of pipe (27) extends to the inside of commuting case (24) through storage tank (14), and the top of the water tank (8) is provided with into water
Mouth (16), and the inside of water tank (8) bottom is provided with pressure sensor (20), the internal top of the water tank (8) is provided with work
Property charcoal filter layer (18), and the top of activated carbon filter layer (18) is provided with primarily efficient filter layer (17), and the water tank (8) is close to molten
The bottom of salt box (4) side is provided with the first aqueduct (6), and bottom and the top phase of dissolved salt case (4) of the first aqueduct (6)
Connection, the water tank (8) is provided with the second aqueduct (19), and the second aqueduct (19) close to the bottom of storage tank (14) side
Bottom be connected with the top of commuting case (24), the output end of the level sensor (7) passes through wire and single-chip microcomputer (12)
Input be electrically connected with, the output end of the conductivity sensor (15) is electrical by the input of wire and single-chip microcomputer (12)
Connection.
2. according to claim 1 a kind of the composite boiler softened water equipment of bating effect, its feature can be monitored in fact
It is：One end of the dissolved salt case (4), which is provided with transparent window, and transparent window, is provided with graduation mark.
3. according to claim 1 a kind of the composite boiler softened water equipment of bating effect, its feature can be monitored in fact
It is：Sound panel is fixed with the side wall of the dissolved salt case (4).
4. according to claim 1 a kind of the composite boiler softened water equipment of bating effect, its feature can be monitored in fact
It is：One end of the commuting case (24) is provided with cabinet door (30), and cabinet door (30) and the junction of commuting case (24) are provided with
Rubber gasket.
5. according to claim 1 a kind of the composite boiler softened water equipment of bating effect, its feature can be monitored in fact
It is：The top of the water inlet (16) is provided with closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362341.7A CN106986419A (en) | 2017-05-22 | 2017-05-22 | It is a kind of to monitor the composite boiler softened water equipment of bating effect in fact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362341.7A CN106986419A (en) | 2017-05-22 | 2017-05-22 | It is a kind of to monitor the composite boiler softened water equipment of bating effect in fact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106986419A true CN106986419A (en) | 2017-07-28 |
Family
ID=59420483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362341.7A Pending CN106986419A (en) | 2017-05-22 | 2017-05-22 | It is a kind of to monitor the composite boiler softened water equipment of bating effect in fact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106986419A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650575A (en) * | 2019-02-21 | 2019-04-19 | 成都信息工程大学 | A kind of intelligent water purification device |
| CN111439809A (en) * | 2020-03-27 | 2020-07-24 | 山东省特种设备检验研究院潍坊分院 | Boiler feed water control system |
| CN111718012A (en) * | 2019-08-19 | 2020-09-29 | 开能健康科技集团股份有限公司 | Water softener |
| CN112142162A (en) * | 2020-06-19 | 2020-12-29 | 山东华通环境科技股份有限公司 | Full-automatic feeding operation softened water treatment device |
| CN112146182A (en) * | 2020-09-15 | 2020-12-29 | 珠海格力电器股份有限公司 | Cooling device and method for air conditioner external unit and air conditioner |
| CN116202217A (en) * | 2023-05-05 | 2023-06-02 | 上海能誉科技股份有限公司 | Electric heating boiler |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202484972U (en) * | 2011-12-31 | 2012-10-10 | 贵州中烟工业有限责任公司 | Boiler inflow monitoring system |
| CN104944520A (en) * | 2015-05-29 | 2015-09-30 | 广东龙正节能环保科技有限公司 | Automatic soft water system for three-tower boiler and softening technology thereof |
-
2017
- 2017-05-22 CN CN201710362341.7A patent/CN106986419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202484972U (en) * | 2011-12-31 | 2012-10-10 | 贵州中烟工业有限责任公司 | Boiler inflow monitoring system |
| CN104944520A (en) * | 2015-05-29 | 2015-09-30 | 广东龙正节能环保科技有限公司 | Automatic soft water system for three-tower boiler and softening technology thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650575A (en) * | 2019-02-21 | 2019-04-19 | 成都信息工程大学 | A kind of intelligent water purification device |
| CN109650575B (en) * | 2019-02-21 | 2023-08-25 | 深圳市天鹤科技有限公司 | Intelligent water purifying device |
| CN111718012A (en) * | 2019-08-19 | 2020-09-29 | 开能健康科技集团股份有限公司 | Water softener |
| CN111439809A (en) * | 2020-03-27 | 2020-07-24 | 山东省特种设备检验研究院潍坊分院 | Boiler feed water control system |
| CN112142162A (en) * | 2020-06-19 | 2020-12-29 | 山东华通环境科技股份有限公司 | Full-automatic feeding operation softened water treatment device |
| CN112146182A (en) * | 2020-09-15 | 2020-12-29 | 珠海格力电器股份有限公司 | Cooling device and method for air conditioner external unit and air conditioner |
| CN116202217A (en) * | 2023-05-05 | 2023-06-02 | 上海能誉科技股份有限公司 | Electric heating boiler |
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Application publication date: 20170728 |
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