CN109506371A - A kind of ventilation water heater and its method for testing security - Google Patents
A kind of ventilation water heater and its method for testing security Download PDFInfo
- Publication number
- CN109506371A CN109506371A CN201811128531.3A CN201811128531A CN109506371A CN 109506371 A CN109506371 A CN 109506371A CN 201811128531 A CN201811128531 A CN 201811128531A CN 109506371 A CN109506371 A CN 109506371A
- Authority
- CN
- China
- Prior art keywords
- speed
- motor
- air blower
- water heater
- gas
- 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.)
- Pending
Links
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
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)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of ventilation water heater and its method for testing security, comprising: burner；Gas valve in fuel gas conduit is set, for controlling the gas supply of burner；Air blower has to burner and provides the motor of air；Detector, the directly speed of the motor of detection air blower；Operating device, with the computing unit being electrically connected with detector, wherein operating device is stored with the reference velocity range of the air blower under various gas supplies, the reference velocity range of air blower is between the low critical speed and higher critical velocity of the motor of air blower, low critical speed is the minimum allowable speed of motor, and it is greater than zero, higher critical velocity is the maximum permission speed of motor, operating device determines whether air blower works normally according to the speed that detector detects after the predetermined acceleration time of motor, when the speed detected is when except the reference velocity range of air blower, gas valve is controlled to cut off gas supply.
Description
Technical field
The present invention relates to ventilation water heater technical field, specifically a kind of ventilation water heater and its method for testing security.
Background technique
It is to endanger very much going out gas by convective burning heel row for being mounted on for indoor traditional ventilation water heater
Danger because when accumulated gases in a room when, by ventilation water heater generate carbon monoxide be fatal.Existing one kind changes
Into ventilation water heater, directly ventilation or ventilation water heater, be provided with air blower with after combustion by gas (including one oxidation
Carbon) discharge is outdoor and improves efficiency of combustion.Air blower can provide more combustion gas to generate more heats, air blower blocking
Or aging causes the air draught in ventilation water heater bad, burning can generate more carbon monoxide.However, using directly arranging
The user of gas ventilation water heater may think that he/her be it is safe, without recognize direct exhaust ventilation water heater have card
Firmly or the air blower of aging is still dangerous.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of ventilation water heater and its method for testing security, solve
It is existing that be mounted on indoor ventilation water heater burning heel row to go out gas be very dangerous problem.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of ventilation water heater and its security test side
Method, comprising: burner；Gas valve in fuel gas conduit is set, for controlling the gas supply of burner；Air blower, have to
The motor of burner offer air；Detector, the directly speed of the motor of detection air blower；Operating device has and inspection
The computing unit of device electrical connection is surveyed, wherein operating device is stored with the reference velocity range of the air blower under various gas supplies,
Between the low critical speed and higher critical velocity of the motor of air blower, low critical speed is the reference velocity range of air blower
The minimum allowable speed of motor, and be greater than zero, higher critical velocity is the maximum permission speed of motor, operating device according to
The speed that detector detects after the predetermined acceleration time of motor determines whether air blower works normally, and when detection
When the speed arrived is within the scope of reference velocity, operating device determines that air blower works normally, when the speed detected is in air blower
Reference velocity range except when, control gas valve to cut off gas supply.
Preferably, low critical speed is 0.7 times of theoretical velocity, and theoretical velocity is the sky to burn under current gas supply
The speed of the motor of the optimum mixture ratio of gas and gas.
Preferably, higher critical velocity is 1.04 times of theoretical velocity, and the theoretical velocity is fired under current gas supply
The speed of the motor of the optimum mixture ratio of the air and gas of burning.
Preferably, the motor of air blower is DC Brushless Motor, and detector is Hall sensor.
It preferably, further include delay controller, the delay controller is electrically connected to the air blower, in the combustion gas
Valve cuts off the motor running predetermined time that the gas supply keeps the air blower later.
It preferably, further include alarm device, the alarm device is electrically connected to the operating device, in the gas valve
Signal is provided when cutting off the gas supply.
The present invention also provides a kind of ventilation water heater and its method for testing security, comprising:
Detector detects the speed of the motor of air blower；
Operating device judges the speed of motor whether within the scope of the reference velocity of air blower, when the speed of motor exists
When within the scope of the reference velocity of air blower, air blower work normally, when motor speed air blower reference velocity range
Except when, control gas valve cut off gas supply.
(3) beneficial effect
The present invention provides a kind of ventilation water heater and its method for testing security.Have it is following the utility model has the advantages that
Detector detects the motor speed of air blower, and operating device has the computing unit for being electrically connected to detector.Operation
Device stores the reference velocity range under various gas supplies, to detect that the electromotor velocity of air blower is more than ginseng in detector
Control air valve cut-off gas supply when examining velocity interval, provides a kind of side for quickly and effectively testing ventilation water heater safety
Method.
Detailed description of the invention
Fig. 1 is the schematic diagram of the ventilation water heater of the preferred embodiment of the present invention；
Fig. 2 is the flow chart of the ventilation water heater method for testing security of the preferred embodiment of the present invention；
Fig. 3 is the schematic diagram of the motor of the preferred embodiment of the present invention；
Fig. 4 provides the curve graph of gas supply for the present invention；
Fig. 5 is the curve graph of electromotor velocity provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figs. 1-5, the present invention provides a kind of technical solution:
The ventilation water heater 1 of the preferred embodiment of the present invention include burner 10, gas valve 20, air blower 30, detector 40,
Operating device 50 and warning device 60.Burner 10 is located at water pipe 101 following for the water in heating pipe 101, burner 10
Burning after gas be discharged by exhaust pipe 102.Gas valve 20 is connected to tracheae 103 and is supplied with the gas adjusted to burner 10
It answers.Gas valve 20 can be gas flow rate control valve, and wherein for gas valve by current control, gas supply is directly proportional to electric current.Appoint
The gas valve of what type, such as rotary valve can be combined and be supplied in the present invention with regulating gas.
Air blower 30 is located at 10 lower section of burner, is provided with DC brushless motor 32.Air blower 30 has entrance 30a
With outlet 30b, motor 32 passes through entrance 30a sucking air and compressed air and is blown out to burner by exporting 30b
10.It is easily understood that the speed of motor 32 is directly proportional to air supply, that is to say, that the speed of motor 32 is higher, drum
The air supply that blower 30 provides is more.On the contrary, the speed of motor 32 is lower, the air supply of air blower 30 is fewer.
As shown in figure 3, detector 40 is the Hall sensor being arranged in air blower 30, for detecting the speed of motor
Degree.The device of any motor sensor speed can be comprising in the present invention.
Operating device 50 has the computing unit 51 for being electrically connected to detector 40, and computing unit 51 is supplied according to various gases
It is stored with theoretical velocity.Theoretical velocity is based on following theory.As shown in figure 4, it shows must have optimal air and gas mixed
Composition and division in a proportion is for burning.Gas supply can be known from gas valve 20.It can be according to the best of gas supply and air and combustion gas
Mixing ratio calculates air supply, and therefore, it can obtain the theoretical velocity of motor 32 according to air.For old-fashioned air blast
Machine usually has low-down speed when starting motor 32.Low critical speed is defined as when electromotor velocity is low by we
The speed of more carbon monoxide will be generated when the low critical speed.For the air blower of blocking, including Partial Blocking or complete
Blocking, it generates very big pressure in air blower, and motor must quickly accelerate to compensate it.We determine higher critical velocity
Justice is speed, i.e., the maximum permission speed before abnormal acceleration.When the speed of motor is higher than higher critical velocity, due to blocking,
It can generate more carbon monoxide.Motor 32 is usually in the ginseng between low critical speed and higher critical velocity in its speed
Work when examining in velocity interval, it is notable that different motor has different low critical speed and higher critical velocity.
When manufacturing ventilation water heater, low critical speed and higher critical velocity have been preset in ventilation water heater.In Fig. 5, curve A indicates gas
Body is for giving the relationship between the speed of functional electric machine 32.The speed of motor 32 rises between time a and time b, and
And speed is kept constant after time b.Theoretical velocity is the constant speed of motor 32.In the present invention, low critical speed
It is 0.7 times of theoretical velocity, higher critical velocity is 1.04 times of theoretical velocity.It should be noted that low critical speed and higher critical velocity
It can be adjusted according to the type of motor.Detector 40 starts to detect the speed of motor 32 after time b, and when inspection
When the result measured is in reference velocity range, it indicates that air blower 30 is worked normally to supply air.
On the contrary, curve B indicates the relationship between gas supply and the speed of aging motor 32.Due to power loss, electricity
Motivation 32 cannot accelerate, and the speed that detector 40 detects is lower than low critical speed.Its improper ventilation in ventilation water heater 1,
And carbon monoxide is generated due to imperfect combustion, this will lead to fatal danger.
Curve C indicates the relationship between speed of the gas for giving blocking motor 32.Pressure in air blower 30 is in drum
The starting of blower 30 and speed rise rapidly after keeping high.When ventilation water heater 10 works, exhaust pipe may block suddenly.
It still makes the speed of the pressure rapid increase in air blower 30 and motor 32 steeply rise (curve D).The two conditions
So that the speed that detector 40 detects is higher than higher critical velocity and leads to imperfect combustion to generate carbon monoxide.
When operating device 50 detects the speed of motor 32 more than reference velocity range, operating device 50 controls combustion gas
Valve 20 is to cut off gas supply.Meanwhile warning device 60 can provide the signal about such case, such as " air blower aging " or
" blocking ", to remind user to repair or clean ventilation water heater 1.
Operating device 50 also has delay controller after gas valve 20 cuts off gas supply, is electrically connected to air blower 30
To keep the motor 32 of air blower to run the predetermined time.Ventilation water heater 1 can be discharged in remaining carbon monoxide by it.
Based on this, the present invention also provides ventilation water heaters described in a kind of method for testing ventilation water heater safety to include drum
Blower and gas supply device, which comprises
Operating device is provided, the electromotor velocity of ventilation water heater air blower is detected；
The speed of motor is checked by comparing the speed of motor and the reference velocity range of air blower；Wherein air blast
For the reference velocity range of machine between the low critical speed and higher critical velocity of blower motor, low critical speed is aging air blast
The minimum allowable speed of the motor of machine, and it is greater than zero, higher critical velocity is the maximum allowable of motor before being vented blockage
Speed；
Operating device judges the speed of motor whether within the scope of the reference velocity of air blower, when the speed of motor exists
When within the scope of the reference velocity of air blower, air blower work normally, when motor speed air blower reference velocity range
Except when, control gas valve cut off gas supply.
Ventilation water heater further includes exhaust pipe, for the exhaust gas of burner to be discharged.
To sum up, purpose according to the present invention, ventilation water heater include burner, gas valve, air blower, detector and operation
Device.The gas supply that burner is controlled in fuel gas conduit is arranged in gas valve.Air blower has motor to mention to burner
For air, detector detects the motor speed of air blower, and operating device has the computing unit for being electrically connected to detector, operation dress
It sets with the reference velocity range storage under the supply of various gases, to detect that the electromotor velocity of air blower is more than ginseng in detector
Control gas valve cutting gas supply when examining velocity interval.Method for testing ventilation water heater safety, including sensing are logical
The speed of the motor of the air blower of wind-heat hydrophone, and when the speed sensed is more than theoretical velocity, check the speed of sensing
For degree to cut off gas supply, theoretical velocity is the desired speed of motor, the gas under the current gas supply based on gas valve
It is obtained with the optimum mixture ratio of air.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of ventilation water heater and its method for testing security, it is characterised in that: include: burner；It is arranged in fuel gas conduit
Gas valve, for controlling the gas supply of burner；Air blower has to burner and provides the motor of air；Detector,
Directly detect the speed of the motor of air blower；Operating device has the computing unit being electrically connected with detector, wherein operation dress
Set the reference velocity range for the air blower being stored under the supply of various gases, the electricity of the reference velocity range of air blower in air blower
Between the low critical speed and higher critical velocity of motivation, low critical speed is the minimum allowable speed of motor, and is greater than zero,
Higher critical velocity is the maximum permission speed of motor, and operating device is according to the detector after the predetermined acceleration time of motor
The speed detected determines whether air blower works normally, and when the speed detected is within the scope of reference velocity, operation
Device determines that air blower works normally, and when the speed detected is when except the reference velocity range of air blower, controls gas valve
To cut off gas supply.
2. a kind of ventilation water heater according to claim 1 and its method for testing security, it is characterised in that: low critical speed
Degree is 0.7 times of theoretical velocity, and theoretical velocity is the optimum mixture ratio of the air and gas that burn under current gas supply
The speed of motor.
3. a kind of ventilation water heater according to claim 1 and its method for testing security, which is characterized in that high critical speed
Degree is 1.04 times of theoretical velocity, and the theoretical velocity is that the air to burn under current gas supply is mixed with the best of gas
The speed of the motor of ratio.
4. a kind of ventilation water heater according to claim 3 and its method for testing security, which is characterized in that air blower
Motor is DC Brushless Motor, and detector is Hall sensor.
5. a kind of ventilation water heater according to claim 4 and its method for testing security, which is characterized in that further include prolonging
Slow controller, the delay controller are electrically connected to the air blower, after the gas valve cuts off the gas supply
Kept for the motor running predetermined time of the air blower.
6. a kind of ventilation water heater according to claim 5 and its method for testing security, which is characterized in that further include police
Reporting device, the alarm device are electrically connected to the operating device, to provide when the gas valve cuts off the gas supply
Signal.
7. a kind of a kind of ventilation water heater such as of any of claims 1-6 and its method for testing security, feature
It is, comprising:
Detector detects the speed of the motor of air blower；
Operating device judges the speed of motor whether within the scope of the reference velocity of air blower, when the speed of motor is in air blast
When within the scope of the reference velocity of machine, air blower is worked normally, when the speed of motor is except the reference velocity range of air blower
When, control gas valve cuts off gas supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128531.3A CN109506371A (en) | 2018-09-27 | 2018-09-27 | A kind of ventilation water heater and its method for testing security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811128531.3A CN109506371A (en) | 2018-09-27 | 2018-09-27 | A kind of ventilation water heater and its method for testing security |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109506371A true CN109506371A (en) | 2019-03-22 |
Family
ID=65746149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811128531.3A Pending CN109506371A (en) | 2018-09-27 | 2018-09-27 | A kind of ventilation water heater and its method for testing security |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506371A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374641A (en) * | 2010-08-09 | 2012-03-14 | 关隆股份有限公司 | Storm type water heater and safety detection method thereof |
| CN109520138A (en) * | 2018-09-26 | 2019-03-26 | 中山市恒乐电器有限公司 | A kind of water heater and its detection method with detection device |
-
2018
- 2018-09-27 CN CN201811128531.3A patent/CN109506371A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374641A (en) * | 2010-08-09 | 2012-03-14 | 关隆股份有限公司 | Storm type water heater and safety detection method thereof |
| CN109520138A (en) * | 2018-09-26 | 2019-03-26 | 中山市恒乐电器有限公司 | A kind of water heater and its detection method with detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102630303B (en) | Flue gas analyzes safety equipment | |
| CN113048657B (en) | Wind-resistant control method for gas water heater and gas water heater | |
| CN110081605B (en) | Exhaust safety detection method of water heater | |
| CN109539568A (en) | A kind of more gas source self-adaptation control methods of gas utensil and its system | |
| US9249988B2 (en) | Direct vent/power vent water heater and method of testing for safety thereof | |
| CN109506371A (en) | A kind of ventilation water heater and its method for testing security | |
| JP2511219B2 (en) | Filter clogging detection device for air conditioner | |
| CN209926582U (en) | Gas water heater | |
| JPH08224425A (en) | Method for detecting filter clogging | |
| CN211601074U (en) | Water heating device | |
| CN107869740A (en) | A kind of cooking stove and the intelligent linkage system of fume emission equipment | |
| CN206683241U (en) | A kind of gas combustion apparatus for realizing monitoring and control combustion conditions | |
| CN111023088A (en) | Method for using zirconium oxide oxygen sensor in natural gas combustion and flow calculation | |
| JPH0656262B2 (en) | Combustion type hot air heater controller | |
| JP3736929B2 (en) | Combustion device | |
| CN110454986A (en) | Combustion control system | |
| JP3795817B2 (en) | Gas combustion equipment | |
| JP5319308B2 (en) | Open combustion equipment | |
| KR0146011B1 (en) | Combustion terminating device in incomplete combustion of combustion instrument | |
| KR100432156B1 (en) | Hot air room heater | |
| CN109520138A (en) | A kind of water heater and its detection method with detection device | |
| CN216203708U (en) | Warmer for monitoring falling prevention of flue | |
| CN217763412U (en) | Precision detection execution control system of combustion heat exchanger | |
| JP4166208B2 (en) | Gas type discrimination method and combustion apparatus using the same | |
| JP3654607B2 (en) | Incomplete combustion prevention device for gas combustion equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190322 |
|
| RJ01 | Rejection of invention patent application after publication |