CN106556151B - A kind of fuel gas of fuel gas water heater automatic pressure unit and method - Google Patents
A kind of fuel gas of fuel gas water heater automatic pressure unit and method Download PDFInfo
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- CN106556151B CN106556151B CN201510640505.9A CN201510640505A CN106556151B CN 106556151 B CN106556151 B CN 106556151B CN 201510640505 A CN201510640505 A CN 201510640505A CN 106556151 B CN106556151 B CN 106556151B
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Abstract
The invention discloses a kind of fuel gas of fuel gas water heater automatic pressure units, the proportioning valve controlled including controller and controller, pressure sensor and combustion gas booster pump are provided in the entry/exit port of proportioning valve or the blast tube of entry/exit port front, controller receives the gaseous-pressure of pressure sensor detection and compared with preset value to control the opening and closing or operating of combustion gas booster pump.The invention also discloses a kind of fuel gas of fuel gas water heater auto-increasing pressures, comprising: obtains the upstream pressure value of proportioning valve；The upstream pressure value that will acquire is compared with preset pressure value range, when upstream pressure value is less than preset pressure value range, starts and controls combustion gas pressurization pump work；Keep upstream pressure value within the scope of preset pressure value.Present invention water heater when upstream pressure is too small is unable to constant temperature combustion, controls the opening and closing of combustion gas booster pump by controller and combustion gas pressurization pump output pressure is adjusted, realize the automatic control to combustion gas booster pump.
Description
Technical field
The present invention relates to technical field of water heaters more particularly to a kind of fuel gas of fuel gas water heater automatic pressure unit and sides
Method.
Background technique
Existing gas heater is generally gas ratio valve using gas valve, plays and adjusts secondary pressure and pressure stabilizing
Effect；Machine is controlled according to burning needs by controller, can arbitrarily regulating gas valve outlet pressure size be pressed with stable
Power, but on condition that gas valve inlet pressure must satisfy requirement, rated pressure is 2000Pa, use scope before natural gas provides valve
For 1000-3000Pa.Gas heater is in use, due to too small etc. with gas peak period or pipe diameter, occurs often
Because gaseous-pressure is inadequate, the problems such as causing gas heater generation to be unable to normal ignition, burning, influence gas heater and just produce to make
With.
The prior art uses the biggish gas nozzle in aperture, but this kind of nozzle can reduce the gas pressure needed when use
Power, while gas nozzle cannot be arbitrarily enlarged, will affect the introducing of primary air amount, impacts to burning.
Summary of the invention
It is an object of the invention to propose a kind of fuel gas of fuel gas water heater automatic pressure unit, it is capable of providing enough gas pressures
Power meets gas heater use.
The present invention also aims to propose a kind of fuel gas of fuel gas water heater auto-increasing pressure, before valve capable of being improved automatically
Pressure, the pressure requirements when upstream pressure after improving being made to reach burning.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of fuel gas of fuel gas water heater automatic pressure unit, including the proportioning valve that controller and controller control, the ratio
It is disposed with pressure sensor and combustion gas booster pump in the entry/exit port of example valve or the blast tube of entry/exit port front,
Controller receives the gaseous-pressure of pressure sensor detection and is compared with preset value to control the opening and closing or operating of combustion gas booster pump.
Preferably, the controller is connected with warning device.
The present invention detects upstream pressure by pressure sensor, and controller receives the upstream pressure that pressure sensor detects
And it is compared with preset value to control the opening and closing of combustion gas booster pump or operating to be capable of providing enough gaseous-pressures and meet gas and hot water
Device uses.
The present invention also provides a kind of fuel gas of fuel gas water heater auto-increasing pressures, certainly using above-mentioned fuel gas of fuel gas water heater
Dynamic supercharging device is controlled, comprising:
Obtain the upstream pressure value of proportioning valve；
The upstream pressure value that will acquire is compared with preset pressure value range, when upstream pressure value is less than preset pressure value range
When, start and controls combustion gas pressurization pump work；
Keep upstream pressure value within the scope of preset pressure value.
Preferably, the acquisition proportioning valve upstream pressure value includes:
Upstream pressure signal is detected by pressure sensor and passes to controller, and the controller before the valve according to pressing
Force signal obtains upstream pressure value.
Preferably, the upstream pressure value that will acquire includes: compared with preset pressure value
The controller sets preset pressure value, and the upstream pressure value that will acquire is compared with the preset pressure value
Compared with.
Preferably, the holding upstream pressure value includes: within the scope of preset pressure value
Whether real-time detection upstream pressure value is within the scope of default upstream pressure value, when upstream pressure value is not before default valve
When range of pressure values, the opening/closing adjusting of controller control combustion gas booster pump makes upstream pressure value within the scope of default upstream pressure value.
Preferably, the holding upstream pressure value is within the scope of preset pressure value further include:
Whether detection combustion gas booster pump operates.
Preferably, the upstream pressure value does not include: in default upstream pressure value range
Upstream pressure value is less than pressure value before default minimum valve and upstream pressure value greater than pressure value before default maximal valve.
It is preset most preferably, the upstream pressure value is greater than less than pressure value before default minimum valve and upstream pressure value
Big upstream pressure value includes:
Detection upstream pressure value is less than when pressure value and when combustion gas booster pump operates, detection combustion gas is pressurized before default minimum valve
Whether pump output is maximum output；
It detects when upstream pressure value is less than pressure value before default minimum valve and combustion gas booster pump is without operating, then start combustion gas increasing
Press pump progressively increases to upstream pressure within the scope of default upstream pressure value；
Upstream pressure value is detected greater than when pressure value and when combustion gas booster pump operates, then controller controls before default maximal valve
Combustion gas booster pump shuts down.
Preferably, when the detection upstream pressure value is less than pressure value before default minimum valve and combustion gas booster pump operates
When, whether detection combustion gas booster pump output is that maximum output includes:
When the output for detecting combustion gas booster pump is maximum output, whether detection upstream pressure value is less than preset failure detection valve
Preceding pressure value；Whether the detection upstream pressure value is less than preset failure detection upstream pressure value
When detecting upstream pressure value less than preset failure detection upstream pressure value, controller is sounded an alarm, and prompts user's gas
Pressure is insufficient；Can controller judgement work normally, and gas heater shuts down and reports failure if cisco unity malfunction.
The above method through the invention, when upstream pressure is too small to start gas heater, controller can be automatic
Control combustion gas booster pump is pressurized the combustion gas not by proportioning valve, to start gas heater；When upstream pressure is not achieved
It, can be by the output pressure of regulating gas booster pump, to realize the tune to combustion gas upstream pressure when the rating requirements of water heater
Section.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the fuel gas of fuel gas water heater automatic pressure unit that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of fuel gas of fuel gas water heater automatic pressure unit provided by Embodiment 2 of the present invention；
Fig. 3 is the flow chart for the fuel gas of fuel gas water heater auto-increasing pressure that the embodiment of the present invention three provides；
Fig. 4 is the flow chart for the fuel gas of fuel gas water heater auto-increasing pressure that the embodiment of the present invention four provides；
Fig. 5 is the flow chart for the fuel gas of fuel gas water heater auto-increasing pressure that the embodiment of the present invention five provides.
In figure:
1, controller；2, proportioning valve；3, pressure sensor；4, combustion gas booster pump；5, blast tube.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and pass through tool
Body embodiment to further illustrate the technical scheme of the present invention.
Embodiment one
Referring to FIG. 1, Fig. 1 is the structural schematic diagram of fuel gas of fuel gas water heater automatic pressure unit provided by the invention.
The present invention provides a kind of fuel gas of fuel gas water heater automatic pressure unit, the ratio controlled including controller 1 and controller 1
Example valve 2 is disposed with pressure sensor 3 and combustion gas pressurization in the air inlet of proportioning valve 2 or the blast tube 5 in air inlet epistome
Pump 4, wherein controller 1 receives the gaseous-pressure that pressure sensor 3 detects and compares with preset value to control combustion gas booster pump 4
Opening and closing or operating come the output pressure of regulating gas booster pump 4, values when combustion gas upstream pressure being made to reach burning.
As optimal technical scheme, controller 1 is connected with warning device in the present embodiment, for the upstream pressure when detection
Value proposes alarm when being less than preset failure detection upstream pressure value, prompts user's insufficient pressure.
The present embodiment is pressed before the valve of 3 detection ratio valve of pressure sensor first when gas heater starts or in starting
Force value, while the upstream pressure value signal that will test of pressure sensor 3 passes to controller 1, controller 1 will receive
Upstream pressure value signal is converted into upstream pressure value and compares with preset value, and controller 1 controls combustion according to comparative information
The opening and closing or operating of gas booster pump 4 are so that the pressure before fuel gas buring reaches the pressure of needs.
Embodiment two
Incorporated by reference to Fig. 2, figure, 2 be the structure of fuel gas of fuel gas water heater automatic pressure unit provided by Embodiment 2 of the present invention
Schematic diagram.
In the present embodiment with embodiment one the difference is that:
Pressure sensor 3 and combustion gas are disposed in the gas outlet of proportioning valve or the blast tube 5 in outlet epistome
Booster pump 4.
Structure in the uniform embodiment one of other structures is identical, and details are not described herein.
Embodiment three
It is the process of fuel gas of fuel gas water heater auto-increasing pressure provided in this embodiment please further refer to Fig. 3, Fig. 3
Figure.
The present embodiment provides a kind of fuel gas of fuel gas water heater auto-increasing pressures, using in embodiment one or embodiment two
Fuel gas of fuel gas water heater automatic pressure unit is controlled, this method comprises:
The upstream pressure value of step 101 acquisition proportioning valve；
Upstream pressure signal is detected by the pressure sensor in admission line and passes to controller, and controller is according to valve
Preceding pressure signal obtains upstream pressure value.
It should be noted that the acquisition of upstream pressure value can be before gas water heater ignition in the present embodiment,
For judging upstream pressure needed for whether combustion gas upstream pressure reaches hot gas Water heater igniting, to guarantee that gas heater is normal
Igniting starting；It is also possible to obtain during user uses gas heater, for judging whether upstream pressure reaches burning
The range of pressure values of Shi Suoxu；It is also possible to before gas water heater ignition with gas heater in use, i.e., first
Judge to measure before gas valve whether reach gas water heater ignition needed for upstream pressure, when gas heater normal ignition starts
Afterwards, then judge upstream pressure needed for whether upstream pressure reaches combustion gas.
The upstream pressure value that step 102 will acquire is compared with preset pressure value range, when upstream pressure value is less than default pressure
When force value range, starts and control combustion gas pressurization pump work.
It is obtaining into after upstream pressure value, upstream pressure value range is preset with by controller, it is above-mentioned in the present embodiment
Default upstream pressure value range is upstream pressure value needed for gas water heater ignition；It is pressed before the valve that then will acquire by controller
Force value is compared with default upstream pressure value range, is pressed before the upstream pressure value obtained into pressure sensor is less than default valve
When the minimum value (being known as pressure value before minimum valve in the present embodiment) of force value range, controller controls combustion gas booster pump and opens, and
Gradually plus the output pressure of combustion gas booster pump enters combustion gas when upstream pressure value is within the scope of default upstream pressure value
The pressure needed for reaching gas water heater ignition by the upstream pressure value before proportioning valve of the combustion gas in channel.
Step 103 keeps upstream pressure value within the scope of preset pressure value.
Such as upstream pressure value is between 1500pa-3000pa in the present embodiment, i.e. upstream pressure value is in preset pressure value
In range.
The burning of step 104 constant temperature of water heater.
Example IV
It is the process of fuel gas of fuel gas water heater auto-increasing pressure provided in this embodiment please further refer to Fig. 4, Fig. 4
Figure.
The present embodiment is further increased based on the fuel gas of fuel gas water heater auto-increasing pressure that embodiment three provides
Real-time detection upstream pressure value wants detection to fire not within the scope of default upstream pressure value after lighting a fire successfully to determine
Gas booster pump whether real-time motion the step of, and in the present embodiment, upstream pressure value is obtained after gas water heater ignition
It takes, default upstream pressure value range upstream pressure value required when being according to gas water heater ignition is set.
Incorporated by reference to Fig. 3, fuel gas of fuel gas water heater auto-increasing pressure includes: in the present embodiment
The upstream pressure value of step 201 acquisition proportioning valve；
The upstream pressure value that step 202 will acquire is compared with preset pressure value range, when upstream pressure value is less than default pressure
When force value range, starts and control combustion gas pressurization pump work；
Step 203 detects upstream pressure value and is less than pressure value before minimum valve, and whether detection combustion gas booster pump operates.
In the present embodiment, this step in use carries out upstream pressure value needs for gas heater,
Upstream pressure value is obtained during user uses gas heater, then by upstream pressure value and default upstream pressure value
Range is compared, when into upstream pressure value not within the scope of default upstream pressure value and be less than minimum valve before pressure value when (this
Pressure value is 1500pa before minimum valve in embodiment), illustrate that gas heater combustion is not achieved in the upstream pressure value in admission line
Required upstream pressure value when burning.
If combustion gas booster pump thens follow the steps 204 without operating, if combustion gas booster pump operates, 205 are thened follow the steps；
The pressurization of step 204 combustion gas booster pump, makes the predetermined upstream pressure value of upstream pressure, then executes step 210.
Start combustion gas booster pump at this time and be gradually increased the output pressure of combustion gas booster pump, until being pressurized by combustion gas booster pump
The upstream pressure of combustion gas when being maintained within the scope of default upstream pressure value, meet the needs of water heater is to upstream pressure value.This
Predetermined upstream pressure value is 2000Pa in embodiment, can guarantee pressure needed for upstream pressure value is increased to gas heater in this way
Within the scope of force value.
Step 205 detects whether combustion gas booster pump is maximum output, if maximum output, thens follow the steps 206, if not
Maximum output then directly executes step 207.
Step 206 controls the operation of combustion gas booster pump maximum power.
Whether step 207 detection upstream pressure value is less than preset failure detection upstream pressure value, if more than thening follow the steps
210,208 are thened follow the steps if being less than.
Step 208 water heater alarm pressure is insufficient and can self-examination burn, if can burn, thens follow the steps 210,
If cannot burn thens follow the steps 209.
Step 209 water heater is shut down and is sounded an alarm.
Step 210 constant temperature combustion.
At this time check combustion gas booster pump whether be maximum output, while also need to detect upstream pressure value whether be less than it is default
Whether fault detection upstream pressure value is less than preset failure detection upstream pressure value in detection upstream pressure value, which also wraps
Include following situations:
Embodiment five
It is the process of fuel gas of fuel gas water heater auto-increasing pressure provided in this embodiment please further refer to Fig. 5, Fig. 5
Figure.
The present embodiment is further increased based on the fuel gas of fuel gas water heater auto-increasing pressure that embodiment three provides
Detection upstream pressure value is greater than pressure value before maximal valve after lighting a fire successfully, to determine whether detection combustion gas booster pump is transported in real time
The step of turning, and in the present embodiment, upstream pressure value is obtained after gas water heater ignition, and upstream pressure value is preset
Range upstream pressure value required when being according to gas water heater ignition is set.
Incorporated by reference to Fig. 4, fuel gas of fuel gas water heater auto-increasing pressure includes: in the present embodiment
The upstream pressure value of step 301 acquisition proportioning valve；
The upstream pressure value that step 302 will acquire is compared with preset pressure value range, when upstream pressure value is less than default pressure
When force value range, starts and control combustion gas pressurization pump work；
Step 303 detects upstream pressure value and is greater than pressure value before maximal valve, while detecting whether combustion gas booster pump operates；If
The operating of combustion gas booster pump thens follow the steps 304, if inoperative then follow the steps 305.
In the present embodiment, this step in use carries out upstream pressure value needs for gas heater,
Upstream pressure value is obtained during user uses gas heater, then by upstream pressure value and default upstream pressure value
Range is compared, when into upstream pressure value not within the scope of default upstream pressure value and be greater than maximal valve before pressure value when (this
Pressure value is 3000pa before maximal valve in embodiment), illustrate that the upstream pressure value in admission line reaches gas heater burning
When required upstream pressure value, but the upstream pressure value in the admission line may control at this time beyond in safe range
Whether device detection combustion gas booster pump operates, and stops the operating of combustion gas booster pump if the operating of combustion gas booster pump；Keep upstream pressure
Within the scope of default upstream pressure value, meets the needs of water heater is to upstream pressure value.
Step 304 stops the rotation of combustion gas booster pump.
The burning of step 305 constant temperature of water heater.
Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in above embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed range of the invention is by appended
Claims and its equivalent thereof.
Claims (4)
1. a kind of fuel gas of fuel gas water heater auto-increasing pressure, using fuel gas of fuel gas water heater automatic pressure unit, the combustion gas
Water heater combustion gas automatic pressure unit includes the proportioning valve (2) of controller (1) and controller (1) control, the proportioning valve (2)
Pressure sensor (3) and combustion gas booster pump are disposed in entry/exit port or the blast tube (5) of entry/exit port front
(4),
Before controller (1) receives the upstream pressure value signal of the proportioning valve (2) of pressure sensor (3) detection and is converted into valve
Pressure value is simultaneously compared with preset value, and to control the opening and closing or operating of combustion gas booster pump (4), the controller (1) is connected with
Warning device characterized by comprising
Obtain the upstream pressure value of proportioning valve；
The upstream pressure value that will acquire is compared with preset pressure value range, when upstream pressure value is less than preset pressure value range,
Start and controls combustion gas pressurization pump work；
Keep upstream pressure value within the scope of preset pressure value；
The holding upstream pressure value includes: within the scope of preset pressure value
Whether real-time detection upstream pressure value is within the scope of default upstream pressure value, when upstream pressure value is not in default upstream pressure
When being worth range, the opening/closing adjusting of controller control combustion gas booster pump makes upstream pressure value within the scope of default upstream pressure value,
The upstream pressure value do not include: in default upstream pressure value range
Upstream pressure value is less than pressure value before default minimum valve and upstream pressure value greater than pressure value before default maximal valve；
The upstream pressure value is less than pressure value before default minimum valve and upstream pressure value greater than pressure value before default maximal valve
Include:
Upstream pressure value is detected less than when pressure value and when combustion gas booster pump operates, detection combustion gas booster pump is defeated before default minimum valve
It whether is out maximum output；
It detects when upstream pressure value is less than pressure value before default minimum valve and combustion gas booster pump is without operating, then start combustion gas pressurization
Pump progressively increases to upstream pressure within the scope of default upstream pressure value；
Upstream pressure value is detected greater than when pressure value and when combustion gas booster pump operates, then controller controls combustion gas before default maximal valve
Booster pump shuts down.
2. fuel gas of fuel gas water heater auto-increasing pressure according to claim 1, which is characterized in that the acquisition proportioning valve
Upstream pressure value, comprising: upstream pressure signal is detected by pressure sensor and passes to controller, the controller is according to institute
It states upstream pressure signal and obtains upstream pressure value.
3. the fuel gas of fuel gas water heater auto-increasing pressure according to claim 2 or 1, which is characterized in that described to will acquire
Upstream pressure value include: compared with preset pressure value
The controller sets preset pressure value, and the upstream pressure value that will acquire is compared with the preset pressure value.
4. fuel gas of fuel gas water heater auto-increasing pressure according to claim 1, which is characterized in that pressed before the holding valve
Force value is within the scope of preset pressure value further include:
Whether detection combustion gas booster pump operates.
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| CN201510640505.9A CN106556151B (en) | 2015-09-30 | 2015-09-30 | A kind of fuel gas of fuel gas water heater automatic pressure unit and method |
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| CN201510640505.9A CN106556151B (en) | 2015-09-30 | 2015-09-30 | A kind of fuel gas of fuel gas water heater automatic pressure unit and method |
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| CN106556151B true CN106556151B (en) | 2019-10-01 |
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| CN110645713B (en) * | 2019-09-02 | 2021-08-31 | 华帝股份有限公司 | Control method of gas water heater |
| CN113686015B (en) * | 2020-05-18 | 2023-06-02 | 青岛经济技术开发区海尔热水器有限公司 | Zero cold water gas water heater |
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