CN105423564B - The gas-fired water heater and its control method of self-cleaning - Google Patents
The gas-fired water heater and its control method of self-cleaning Download PDFInfo
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- CN105423564B CN105423564B CN201510987363.3A CN201510987363A CN105423564B CN 105423564 B CN105423564 B CN 105423564B CN 201510987363 A CN201510987363 A CN 201510987363A CN 105423564 B CN105423564 B CN 105423564B
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- Prior art keywords
- solenoid valve
- self
- burner
- cleaning
- gas
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
A kind of gas-fired water heater of self-cleaning, including pre-mixing type combustion apapratus (1), heat exchanger (2) and exhaust fume collecting hood (3), heat exchanger (2) is equipped with heat transfer flue, burner (1) is mounted on above heat exchanger (2) and connect with heat transfer flue inlet seal, exhaust fume collecting hood (3) is mounted below heat exchanger (2) and connect with heat transfer flue exit seal, exhaust fume collecting hood (3) is equipped with smoke outlet (31), nozzle (4) are installed in the mixing chamber of burner (1), the arrival end of nozzle (4) stretches out the shell of burner (1) and is connected to water inlet pipe, burner plate of the outlet end of nozzle (4) towards burner (1), water inlet pipe is serially connected with switch valve.Its energy self-cleaning burner and heat exchanger, guarantee the normal use of gas-fired water heater.
Description
Technical field
The invention belongs to gas-fired water heater fields, are suitable for gas heater, gas-heating water heater etc..
Background technique
In the prior art, the burner of the premixed type gas hot water apparatus such as gas heater, gas-heating water heater goes out
Air vent aperture is smaller, simultaneously because more containing dust in air environment, the impure reasons such as on the high side of combustion gas cause premixed combustion
In use for some time, the venthole of burner gathers the product after dust or burning, while heat exchanger to gas hot water apparatus
Product after being burned blocks at leisure, needs to clean again and just can ensure that normal use.Not only make to bother after sale in this way, and
And can also there be hidden danger in assembly and disassembly cleaning process.To overcome this defect, special gas-fired water heater and its control to self-cleaning
Method processed is developed.
Summary of the invention
The technical problem to be solved by the present invention is to provide the gas-fired water heater and its control method of a kind of self-cleaning,
Its energy self-cleaning burner and heat exchanger, guarantee the normal use of gas-fired water heater.
The technical solution used to solve the technical problems of the present invention is that: it includes pre-mixing type combustion apapratus, heat exchanger sum aggregate cigarette
Cover, heat exchanger are equipped with heat transfer flue, and burner is mounted on above heat exchanger and connect with heat transfer flue inlet seal, exhaust fume collecting hood peace
It is connect below heat exchanger and with heat transfer flue exit seal, exhaust fume collecting hood is equipped with smoke outlet, installation in the mixing chamber of burner
There is a nozzle, the shell that burner is stretched out in the arrival end inclination of nozzle is simultaneously connected to water inlet pipe, and the outlet end of nozzle is towards burner
Burner plate, water inlet pipe is serially connected with switch valve, booster pump and flow sensor, and the output of booster pump is arranged in flow sensor
The bottom at end, the exhaust fume collecting hood is equipped with discharge outlet, and discharge outlet is connected with collector.Switch valve can be Manual structure or electronic knot
Structure.When switch valve is opened, the water sprayed from nozzle washes away the venthole of burner plate, then, flows out from burner plate venthole
Water flows into the heat transfer flue of heat exchanger and washes away heat transfer flue, and last exhaust fume collecting hood collects the waste water after cleaning.
It is of the invention that another example is it further includes controller, and the switch valve is solenoid valve, solenoid valve and controller electricity
Connection.Switch valve uses electronic structure, helps to realize the intelligentized control method of cleaning function.
It is of the invention that another example is it further includes timer, and controller controls electromagnetism according to the signal of timer feedback
Valve is closed.Alternatively, it further includes flowmeter, the signal control solenoid valve that controller is fed back according to flowmeter is closed.
It is of the invention that another example is it further includes the key for triggering self-cleaning and opening solenoid valve.
It is of the invention that another example is the water inlet pipe is also serially connected with booster pump and flow sensor, solenoid valve, pressurization
Pump, flow sensor, nozzle are sequentially connected in series, and the signal control booster pump that controller is fed back according to flow sensor is opened, pressurization
Pump and solenoid valve close synchronously.The setting of booster pump and flow sensor helps to ensure that water flow is steady in cleaning process, keeps away
Exempt to influence cleaning effect because of the water pressure fluctuations of tap water, and the output end that flow sensor is set to booster pump then facilitates to reduce
Influence of the booster pump resistance to water flow guarantees the accuracy of the water flow of cleaning burner and heat transfer flue.
It is of the invention that another example is the bottom of the exhaust fume collecting hood is equipped with discharge outlet, and discharge outlet is connected with collector.Draining
For mouth for draining into the waste water in exhaust fume collecting hood in collector, collector is also used to collect the condensed water generated after flue gas condensing.
The above various examples both can also respectively be shown separately as one embodiment under the premise of guaranteeing reconcilable
Example any combination constitutes combined type embodiment.
Solenoid valve is used for above-mentioned switch valve and is provided with the self-cleaning gas-fired water heater of timer or flowmeter,
Control method the following steps are included:
A, start, into standby mode；
B, self-cleaning function is triggered；
C, judge whether rotation speed of fan and air volume meet nominal value, if then entering step G, if otherwise entering step
Rapid D；
D, solenoid valve is opened, and calculates time or accumulative water flow；
E, judge whether time signal or accumulative water flow signal reach preset value, if then entering step F, if otherwise after
Continuous judgement；
F, solenoid valve is closed, and enters step C；
G, self-cleaning terminates, and issuing terminates prompt.
It is of the invention that another example is the water inlet pipe is also serially connected with booster pump and flow sensor, solenoid valve, pressurization
Pump, flow sensor, nozzle are sequentially connected in series, and the signal control booster pump that controller is fed back according to flow sensor is opened, pressurization
Pump and solenoid valve close synchronously；It is further comprising the steps of before the step D enters step E: d1, to judge instantaneous water flow letter
Number whether be lower than preset value, if then entering step d2, if otherwise continuing to judge；D2, booster pump is opened；And step F is replaced with
Solenoid valve and booster pump are closed, and enters step C.
The above various examples both can also respectively be shown separately as one embodiment under the premise of guaranteeing reconcilable
Example any combination constitutes combined type embodiment.
Detailed description of the invention
Fig. 1 is flow path schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention one；
Fig. 3 is the control method flow chart of the embodiment of the present invention one；
Fig. 4 is the structural schematic diagram of the embodiment of the present invention two；
Fig. 5 is the control method flow chart of the embodiment of the present invention two.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not construed as limiting the claims, on the contrary, this
The embodiment of invention includes all changes fallen within the scope of the spiritual and intension of attached claims, modification and is equal
Object.
Embodiment one
As depicted in figs. 1 and 2, the present embodiment includes pre-mixing type combustion apapratus 1, heat exchanger 2, exhaust fume collecting hood 3, controller and timing
Device (or flowmeter) and the key for triggering self-cleaning.Heat exchanger 2 is equipped with heat transfer flue, and burner 1 is mounted on 2 top of heat exchanger
And connect with heat transfer flue inlet seal, exhaust fume collecting hood 3 is mounted on 2 lower section of heat exchanger and connect with heat transfer flue exit seal, collects
Petticoat pipe 3 is equipped with smoke outlet 31 and the bottom of exhaust fume collecting hood 3 is additionally provided with discharge outlet 32, and discharge outlet 32 is connected with collector 6.Burner 1
Mixing chamber in nozzle 4 is installed, the shell that the arrival end of nozzle 4 stretches out burner 1 simultaneously be connected to water inlet pipe, nozzle 4 out
Towards the burner plate of burner 1, water inlet pipe is serially connected with solenoid valve 5 for mouthful end.Solenoid valve 5 is electrically connected with the controller, and is touched by key
Solenoid valve 5 is opened after cleaning, and the signal control solenoid valve 5 that controller is fed back according to timer (or flowmeter) is closed.
As shown in figure 3, the control method of the present embodiment the following steps are included:
A, start, into standby mode；
B, self-cleaning function is triggered；
C, judge whether rotation speed of fan and air volume meet nominal value, if then entering step G, if otherwise entering step
Rapid D；
D, solenoid valve is opened, and calculates time (or accumulative water flow)；
E, judge whether time signal (or accumulative water flow signal) reaches preset value, if then entering step F, if otherwise
Continue to judge；
F, solenoid valve is closed, and enters step C；
G, self-cleaning terminates, and issuing terminates prompt.
The nominal value of the present embodiment setting blower changes linearly, when the power of gas-fired water heater changes,
Corresponding rotation speed of fan and air quantity range are scaled up or reduce therewith.For example, when gas-fired water heater reaches maximum input
When power, rotation speed of fan 6000rpm, corresponding air force is 105 ~ 110m3/h；When gas-fired water heater reaches minimum defeated
When entering power, rotation speed of fan 1500rpm, corresponding air force is 25 ~ 30m3/h.Under any power, work as rotation speed of fan
When not meeting nominal value with air volume, solenoid valve is opened.
In step E, the preset value of working time is 5min, and the preset value for adding up water flow is 15 ~ 25L.
Embodiment two
As shown in figure 4, the present embodiment is on the basis of example 1, to be serially connected with booster pump 7 in water inlet pipe and flow passes
Sensor 8, solenoid valve 5, booster pump 7, flow sensor 8, nozzle 4 are sequentially connected in series, the letter that controller is fed back according to flow sensor 8
Number control booster pump 7 is opened, booster pump 7 and 5 close synchronously of solenoid valve.
At this point, as shown in figure 5, the control method of the present embodiment is on the basis of one control method of embodiment, in step D
Before entering step E, increase following steps:
D1, judge whether instantaneous water flow signal is lower than preset value, if then entering step d2, if otherwise continuing to judge；
D2, booster pump is opened；
And step F is replaced with and is closed solenoid valve and booster pump, and enters step C.
The preset value of instantaneous water flow is 3 ~ 5L/min in the present embodiment.
Flowmeter is used to calculate the accumulative water flow in single cleaning process in the present invention, and flow sensor is for calculating list
Instantaneous water flow in secondary cleaning process.
The present invention utilizes the venthole of current scour burner and the heat exchange cigarette of heat exchanger when machine is inoperative
Road reaches an automatic cleaning effect, can effectively solve premixed type gas hot water apparatus using after a period of time, produces because burning
Object blocking burner or heat exchanger and cause heat input and the thermal efficiency to reduce, or can not normal use the problem of.
Claims (7)
1. a kind of gas-fired water heater of self-cleaning, including pre-mixing type combustion apapratus (1), heat exchanger (2) and exhaust fume collecting hood (3), heat exchange
Device (2) is equipped with heat transfer flue, and burner (1) is mounted on above heat exchanger (2) and connect with heat transfer flue inlet seal, exhaust fume collecting hood
(3) it is mounted below heat exchanger (2) and is connect with heat transfer flue exit seal, exhaust fume collecting hood (3) is equipped with smoke outlet (31), feature
It is: is equipped with nozzle (4) in the mixing chamber of the burner (1), burner (1) is stretched out in the arrival end inclination of nozzle (4)
Shell is simultaneously connected to water inlet pipe, and towards the burner plate of burner (1), water inlet pipe is serially connected with switch valve, increases for the outlet end of nozzle (4)
The output end in booster pump (7), the bottom of the exhaust fume collecting hood (3) is arranged in press pump (7) and flow sensor (8), flow sensor (8)
Portion is equipped with discharge outlet (32), and discharge outlet (32) is connected with collector (6).
2. the gas-fired water heater of self-cleaning according to claim 1, it is characterised in that: it further includes controller, described to open
Pass valve is solenoid valve (5), and solenoid valve (5) is electrically connected with the controller.
3. the gas-fired water heater of self-cleaning according to claim 2, it is characterised in that: further include timer, controller root
It is closed according to signal control solenoid valve (5) of timer feedback；Alternatively, it further includes flowmeter, controller is fed back according to flowmeter
Signal control solenoid valve (5) close.
4. the gas-fired water heater of self-cleaning according to claim 2, it is characterised in that: it further includes that triggering self-cleaning makes electricity
The key that magnet valve (5) is opened.
5. according to Claims 2 or 3 or the gas-fired water heater of 4 self-cleanings, it is characterised in that: the solenoid valve (5) increases
Press pump (7), flow sensor (8), nozzle (4) are sequentially connected in series, and the signal control that controller is fed back according to flow sensor (8) increases
Press pump (7) is opened, booster pump (7) and solenoid valve (5) close synchronously.
6. a kind of control method of the gas-fired water heater of self-cleaning according to claim 3, it is characterised in that including following
Step:
A, start, into standby mode；
B, self-cleaning function is triggered；
C, judge whether rotation speed of fan and air volume meet nominal value, if then entering step G, if otherwise entering step D；
D, solenoid valve is opened, and calculates time or accumulative water flow；
E, judge whether time signal or accumulative water flow signal reach preset value, if then entering step F, if otherwise continuing to sentence
It is disconnected；
F, solenoid valve is closed, and enters step C；
G, self-cleaning terminates, and issuing terminates prompt.
7. control method according to claim 6, it is characterised in that: the water inlet pipe is also serially connected with booster pump (7) and stream
Quantity sensor (8), solenoid valve (5), booster pump (7), flow sensor (8), nozzle (4) are sequentially connected in series, and controller is according to flow
Signal control booster pump (7) of sensor (8) feedback is opened, booster pump (7) and solenoid valve (5) close synchronously；
It is further comprising the steps of before the step D enters step E:
D1, judge whether instantaneous water flow signal is lower than preset value, if then entering step d2, if otherwise continuing to judge；
D2, booster pump is opened；
And step F is replaced with and is closed solenoid valve and booster pump, and enters step C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987363.3A CN105423564B (en) | 2015-12-27 | 2015-12-27 | The gas-fired water heater and its control method of self-cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987363.3A CN105423564B (en) | 2015-12-27 | 2015-12-27 | The gas-fired water heater and its control method of self-cleaning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423564A CN105423564A (en) | 2016-03-23 |
| CN105423564B true CN105423564B (en) | 2019-05-21 |
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| CN201510987363.3A Active CN105423564B (en) | 2015-12-27 | 2015-12-27 | The gas-fired water heater and its control method of self-cleaning |
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| CN104279759A (en) * | 2014-08-13 | 2015-01-14 | 广东万家乐燃气具有限公司 | Self-cleaning gas water heater and automatic cleaning method thereof |
| CN204176914U (en) * | 2014-10-23 | 2015-02-25 | 广东万和新电气股份有限公司 | Full premixed condensed gas water heater |
| CN205332547U (en) * | 2015-12-27 | 2016-06-22 | 广东万和新电气股份有限公司 | Gas hot water system of self -cleaning |
-
2015
- 2015-12-27 CN CN201510987363.3A patent/CN105423564B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258361A (en) * | 2005-05-20 | 2008-09-03 | 皮特科弗里拉特公司 | Self-cleaning burner system for heaters and burners |
| CN101506578A (en) * | 2006-08-16 | 2009-08-12 | 西门子公司 | Burner cleaning device |
| CN200961872Y (en) * | 2006-09-28 | 2007-10-17 | 福建南方路面机械有限公司 | Air-atomizing burner |
| CN102261731A (en) * | 2011-05-20 | 2011-11-30 | 郑州市中利农养殖专业合作社 | Electric boiler |
| CN104279759A (en) * | 2014-08-13 | 2015-01-14 | 广东万家乐燃气具有限公司 | Self-cleaning gas water heater and automatic cleaning method thereof |
| CN204176914U (en) * | 2014-10-23 | 2015-02-25 | 广东万和新电气股份有限公司 | Full premixed condensed gas water heater |
| CN205332547U (en) * | 2015-12-27 | 2016-06-22 | 广东万和新电气股份有限公司 | Gas hot water system of self -cleaning |
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| Publication number | Publication date |
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| CN105423564A (en) | 2016-03-23 |
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