CN106595049A - Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater - Google Patents
Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater Download PDFInfo
- Publication number
- CN106595049A CN106595049A CN201710024943.1A CN201710024943A CN106595049A CN 106595049 A CN106595049 A CN 106595049A CN 201710024943 A CN201710024943 A CN 201710024943A CN 106595049 A CN106595049 A CN 106595049A
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- CN
- China
- Prior art keywords
- motor
- fan
- water heater
- blower fan
- condensation water
- 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.)
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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
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a direct-current frequency-conversion fan assembly of a strong-pumping condensation water heater. A fan assembly is arranged above a heat exchanger of the strong-pumping condensation water heater, an outlet of the fan assembly communicates with the condensation water heater, the fan assembly comprises an air collecting cover, a fan volute arranged on the upper part of the air collecting cover and a wind wheel placed in the volute, a motor is fixed through a support frame arranged on the volute and is further connected with a motor cooling fin assembly, a control circuit board is arranged above the motor and is provided with a connecting and guiding terminal line, and the terminal line is connected with a master controller. The direct-current frequency conversion fan assembly of the strong-pumping condensation water heater is characterized in that the motor is a direct-current frequency-conversion motor, the motor cooling fin assembly is arranged above the control circuit board, the control circuit board is connected with the master controller of the strong-pumping condensation water heater through the terminal line, the master controller receives motor related information transmitted from the terminal line, corresponding motor control information is given, therefore, the wind speed of a fan is changed correspondingly, air supply is guaranteed, a combustion state is guaranteed, wind resistance is improved, and a rotating speed feedback value of the direct-current fan is used as a basis for detecting faults of the fan and blockage of a flue.
Description
Technical field
The present invention relates to take out condensation technical field of water heaters by force, condensation hot water is taken out by force more particularly, to a kind of blower fan structure
Device.
Background technology
Existing condensable product of taking out by force in the industry adopts single speed AC blower fan, and using blast switch blast detection, such as Fig. 1 are carried out
It is shown, condensation water heater is taken out by force mainly by gas ratio valve, water valve, master controller, condensing heat exchanger, burner, heat exchanger
The blower fan composition driven with alternating current generator A, the structure of its alternating current generator part includes wind-collecting cover, is arranged on the wind on wind-collecting cover top
Machine spiral case, the wind wheel being placed in snail cover a, alternating current generator is fixed by the bracing frame being arranged on spiral case, and motor connection has electric capacity
B, is provided with pressure samples mouth C on spiral case, the pressure samples mouth connection blast switch, is examined with the pressure change in volute of blower
Survey blast and stopping state；Be also associated with motor radiating piece component on motor, motor has and draws end line, said structure exist it is following not
Foot：1st, because using single speed AC blower fan (rotating speed is non-adjustable), whole machine maximum wind resistance is less, and in 90Pa or so, (Standard exists
≥80Pa)；2nd, it is because maximum Wind-Pressure Resistance and standard are too close to, then very high to blower fan sampling and blast switch parameter request, it is no
Then will appear from first stopping working and do not report " blast and plugging fault " (not being inconsistent GB) or " blast and plugging fault " to report (not being inconsistent GB) by mistake in advance；
3rd, blast switch fault rate is high.Affected by traditional long-term habits thinking for taking out condensation water heater application by force, at present still nobody
Expect being changed it.
The content of the invention
It is an object of the invention to propose a kind of DC frequency-changing blower fan structure solve that wind resistance is less than normal and blast switch it
It is not enough；Wind resistance is brought up to into more than 300Pa, the DC frequency-changing blower fan structure for cancelling blast switch takes out by force condensation hot water
Device.
In order to reach object above, patent of the present invention is adopted the following technical scheme that：
Taking out by force for the DC frequency-changing blower fan structure of the present invention condenses water heater mainly by gas ratio valve, water valve, main control
Device, condensing heat exchanger, burner, heat exchanger and fan assembly composition, fan assembly is arranged on the top of heat exchanger, blower fan group
Part outlet condensing heat exchanger, fan assembly includes wind-collecting cover, is arranged on the volute of blower on wind-collecting cover top, is placed in snail cover
Wind wheel, a motor fixed by the bracing frame being arranged on spiral case, and motor radiating piece component is also associated with motor, motor
Top is provided with control circuit, and control circuit connects draws end line, and end line is connected with master controller, it is characterised in that the motor
Using direct current variable frequency motor, motor radiating piece component is arranged on the control circuitry, has rotation speed of fan to detect in the master controller
And control circuit, the detection and control circuit receive the motor relevant information that end line transmits and simultaneously provide corresponding motor control
Information, so as to correspondence changes blower fan wind speed, it is ensured that air is supplied, it is ensured that fired state, improves wind resistance, and with DC fan
Speed feedback value is used as detection blower fan failure and the foundation of flue blockage.
Used as the further improvement of such scheme, the detection of the controller and control circuit are to wind according to environment blast
The impact of machine wind speed, the whole load for causing blower fan changes, the corresponding electric current of blower fan and changed power, and master board detects change
After changing signal, change rotation speed of fan instruction is accordingly provided, it is ensured that water heater is good in high blast and the burning of the situation of blocking, overall
Improve wind resistance and combustibility.
Protective cover is additionally provided with outside the heat sink assembly.
Compared with prior art, the condensation water heater of taking out by force of patent offer of the present invention has the advantages that：
Present invention employs direct current variable frequency motor and substitute alternating current generator, and using the control circuit of direct current generator, it can root
Change blower fan wind speed according to environment blast correspondence, it is ensured that air is supplied, it is ensured that fired state, wind resistance is improved, while with direct current
Rotation speed of fan value of feedback is used as detection blower fan failure and the foundation of flue blockage.The above-mentioned technical characteristic of the present invention is improved and takes out cold by force
The Wind-Pressure Resistance value of solidifying product, cancels blast switch, so as to stability and reliability is higher.
Description of the drawings
Fig. 1 is the AC blower fan structural representation of prior art.
Fig. 2 is present invention band DC frequency-changing modular construction schematic diagram according to circumstances.
Fig. 3 is fan assembly structural representation of the present invention.
Description of reference numerals：1st, condensing heat exchanger 2, master controller 3, gas ratio valve 4, water valve 5, burner 6,
Heat exchanger 7, DC frequency-changing fan assembly 8, exhaust fume collecting hood 9, wind wheel 10, volute of blower 11, bracing frame 12, direct current generator
13rd, end line 14, control board 15, the protective cover A of motor radiating piece component 16, alternating current generator B, electric capacity C, pressure samples
Mouth.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to patent of the present invention.
As shown in Fig. 2 this DC frequency-changing blower fan structure take out by force condensation water heater mainly by gas ratio valve 5, water valve 4,
Master controller 2, condensing heat exchanger 1, burner 5, heat exchanger 6 and DC frequency-changing fan assembly 7 are constituted.DC frequency-changing blower fan group
Part 7 is arranged on the top of heat exchanger 6, the outlet condensing heat exchanger 1 of DC frequency-changing fan assembly 7, as shown in figure 3, direct current becomes
Frequency fan assembly 7 includes wind-collecting cover 8, the volute of blower 10 for being arranged on the top of wind-collecting cover 8, the wind wheel 9 being placed in snail cover 10, always
Rheology frequency electric machine assembly 12 is fixed by the bracing frame 11 being arranged on spiral case 10, and motor radiating piece group is also associated with motor 12
Part 15, the top of motor 12 is provided with control board 14, and control circuit 14 connects draws end line 13, end line 13 and master controller 2
It is connected, motor radiating piece component 15 is arranged on the top of control board 14, and protection is additionally provided with outside the heat sink assembly 16
Cover 16.There is rotation speed of fan to detect and control circuit in the master controller 2, the detection and control circuit receive end line and transmit
Motor relevant information and provide corresponding motor control information, so as to correspondence change blower fan wind speed, it is ensured that air supply, it is ensured that
Fired state, improves wind resistance, and using DC fan speed feedback value as detection blower fan failure and the foundation of flue blockage；
The detection of this controller and control circuit are the impacts according to environment blast to blower fan wind speed, and the whole load for causing blower fan becomes
Change (diminishing), the corresponding electric current of blower fan and changed power (diminishing), master board is detected after change (diminishing) signal, accordingly given
Go out to change rotation speed of fan instruction, carry out accommodation, concrete this circuit is existing mature technology, and applicant's here is not made in detail
Describe in detail bright.
This structure of the present invention is taken out by force freezing machine contrast and is with the following changes with industry and the main flow for having technology：
1st, relative to the AC blower fan component of such as Fig. 1, its pressure samples mouth may detect the pressure in volute of blower, outer end
It is connected with blast switch, blast and stopping state situation is detected with the pressure change in volute of blower；
And the DC frequency-changing blower fan shown in Fig. 2, Fig. 3 controls its rotating speed by the circuit board in motor, and its rotating speed is detected, led to
Cross end line feedback rotary speed information and give water heater master controller, reach detection function.A. the operation principle of direct current generator is armature
The alternating electromotive force of the sensing of coil, by diverter the commutation effect of brush is coordinated, and is allowed to from brush end be changed into direct current when drawing
Electromotive force；
Alternating current generator is to change the phase place for starting winding and operation winding with electric capacity, produces rotating excitation field.
A. it is as follows the characteristics of direct current generator relative to alternating current generator：
Overload, starting, braking moment are big；
Speed adjustable range is wide, and is easy to smooth adjustment；
Easily controllable, reliability is high；
It is lost during speed governing little.
B. relative to AC blower fan, DC fan inside increases circuit board, and design circuit board is arranged on upside, away from blower fan
Spiral case (high-temperature flue gas pass through), increases reliability；
C. simultaneously motor radiating piece component is also designed in upper end, and increases protective cover, and its effect is 1.. effectively to motor and
Circuit board is radiated；When 2. working, prevent motor radiating piece from scraping handss, improve safety.
The present invention is not limited solely to using DC frequency-changing blower fan, and also residing in it can be according to water heater external wind pressure environment
Or stopping state automatically adjusts rotation speed of fan, water heater wind resistance is improved.When external wind presses through height or blocking, blower fan
Whole load diminish, the corresponding electric current of blower fan and power diminish, and mainboard detects change small-signal, improve rotation speed of fan, it is ensured that
Water heater is good in high blast and the burning of the situation of blocking, overall to improve wind resistance and combustibility.
If rotation speed of fan can be improved always, in theory water heater can under any blast and stopping state normal work
Make, but be confined to the performance of blower fan and water heater, general Wind-Pressure Resistance value is accomplished by report " blast or blocking event in 300Pa or so
Barrier ".
2. blast switch is cancelled
Industry main flow takes out by force freezing machine because using single speed AC blower fan, and rotation speed of fan is constant, can only use blast switch
Extraneous blast and stopping state are detected according to the pressure change of volute of blower, this kind of detection defect has：1. the pressure of volute of blower
Force fluctuation is big, unstable；2. blast switch has high demands, and fault rate is high.
, as blast is increasing or blocking becomes serious, rotation speed of fan is also increasingly for the DC frequency-changing blower fan of the present invention
Height, by master controller detection blower fan rotating speed extraneous blast and stopping state can be obtained.The method need not be opened using blast
Close, directly by main controller controls, the more stable reliability of test mode, cancelling blast switch also can reduces cost.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these belong to the present invention
Protection domain.
Claims (3)
1. a kind of DC frequency-changing blower fan structure takes out by force condensation water heater, mainly by gas ratio valve, water valve, master controller, cold
Solidifying heat exchanger, burner, heat exchanger and fan assembly composition, fan assembly is arranged on the top of heat exchanger, and fan assembly goes out
Mouth connection condensing heat exchanger, fan assembly includes wind-collecting cover, is arranged on the volute of blower on wind-collecting cover top, the wind being placed in snail cover
Wheel a, motor is fixed by the bracing frame being arranged on spiral case, and motor radiating piece component, the top of motor are also associated with motor
Control circuit is provided with, control circuit connects draws end line, and end line is connected with master controller, it is characterised in that the motor is adopted
Direct current variable frequency motor, motor radiating piece component is arranged on the control circuitry, has rotation speed of fan to detect and control in the master controller
Circuit processed, the detection and control circuit receive the motor relevant information that end line transmits and provide corresponding motor control letter
Breath, so as to correspondence changes blower fan wind speed, and using DC fan speed feedback value as detection blower fan failure and flue blockage according to
According to.
2. a kind of DC frequency-changing blower fan structure according to claim 1 takes out by force condensation water heater, it is characterised in that described
The detection of controller and control circuit are the impacts according to environment blast to blower fan wind speed, and the whole load for causing blower fan changes,
The corresponding electric current of blower fan and changed power, master board is detected after variable signal, accordingly provides change rotation speed of fan instruction.
3. a kind of DC frequency-changing blower fan structure according to claim 1 takes out by force condensation water heater, it is characterised in that described
Protective cover is additionally provided with outside heat sink assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710024943.1A CN106595049A (en) | 2017-01-13 | 2017-01-13 | Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710024943.1A CN106595049A (en) | 2017-01-13 | 2017-01-13 | Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106595049A true CN106595049A (en) | 2017-04-26 |
Family
ID=58585581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710024943.1A Pending CN106595049A (en) | 2017-01-13 | 2017-01-13 | Direct-current frequency-conversion fan assembly of strong-pumping condensation water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106595049A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839433A (en) * | 2017-01-13 | 2017-06-13 | 广东万家乐燃气具有限公司 | A kind of the strong of DC frequency-changing blower fan structure takes out condensation water heater |
| CN114963495A (en) * | 2021-06-23 | 2022-08-30 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater with upward-pumping type direct-current fan and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1422503A (en) * | 1973-06-20 | 1976-01-28 | Saunier Duval | Air flow regulating device for a gas heater |
| CN203116079U (en) * | 2012-12-12 | 2013-08-07 | 广东万家乐燃气具有限公司 | High efficiency gas combustion heating water heater |
| CN204202183U (en) * | 2014-09-29 | 2015-03-11 | 广东万家乐燃气具有限公司 | A kind of type of taking out by force gas heater with direct current generator |
| CN204202138U (en) * | 2014-09-29 | 2015-03-11 | 广东万家乐燃气具有限公司 | One takes out by force type gas heater |
| CN205481772U (en) * | 2016-01-15 | 2016-08-17 | 广东万和新电气股份有限公司 | Take gas heater of direct current fan |
| CN206531279U (en) * | 2017-01-13 | 2017-09-29 | 广东万家乐燃气具有限公司 | A kind of strong DC frequency-changing fan assembly for taking out condensation water heater |
-
2017
- 2017-01-13 CN CN201710024943.1A patent/CN106595049A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1422503A (en) * | 1973-06-20 | 1976-01-28 | Saunier Duval | Air flow regulating device for a gas heater |
| CN203116079U (en) * | 2012-12-12 | 2013-08-07 | 广东万家乐燃气具有限公司 | High efficiency gas combustion heating water heater |
| CN204202183U (en) * | 2014-09-29 | 2015-03-11 | 广东万家乐燃气具有限公司 | A kind of type of taking out by force gas heater with direct current generator |
| CN204202138U (en) * | 2014-09-29 | 2015-03-11 | 广东万家乐燃气具有限公司 | One takes out by force type gas heater |
| CN205481772U (en) * | 2016-01-15 | 2016-08-17 | 广东万和新电气股份有限公司 | Take gas heater of direct current fan |
| CN206531279U (en) * | 2017-01-13 | 2017-09-29 | 广东万家乐燃气具有限公司 | A kind of strong DC frequency-changing fan assembly for taking out condensation water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839433A (en) * | 2017-01-13 | 2017-06-13 | 广东万家乐燃气具有限公司 | A kind of the strong of DC frequency-changing blower fan structure takes out condensation water heater |
| CN114963495A (en) * | 2021-06-23 | 2022-08-30 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater with upward-pumping type direct-current fan and control method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
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| RJ01 | Rejection of invention patent application after publication |