CN109099455A - A kind of gas ratio valve preset and method - Google Patents
A kind of gas ratio valve preset and method Download PDFInfo
- Publication number
- CN109099455A CN109099455A CN201810920160.6A CN201810920160A CN109099455A CN 109099455 A CN109099455 A CN 109099455A CN 201810920160 A CN201810920160 A CN 201810920160A CN 109099455 A CN109099455 A CN 109099455A
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- Prior art keywords
- valve
- gas ratio
- ratio valve
- gas
- pressure
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/025—Regulating fuel supply conjointly with air supply using electrical or electromechanical means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2227/00—Ignition or checking
- F23N2227/12—Burner simulation or checking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2235/00—Valves, nozzles or pumps
- F23N2235/12—Fuel valves
- F23N2235/16—Fuel valves variable flow or proportional valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2239/00—Fuels
- F23N2239/04—Gaseous fuels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2241/00—Applications
- F23N2241/04—Heating water
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The present invention discloses a kind of gas ratio valve preset, it include: gas circuit, pressure regulator valve, gas ratio valve installation position, premixed device, frequency conversion fan and nozzle flow resistance module in the gas circuit are set, the pressure regulator valve is located at the upstream of the gas ratio valve installation position, the premixed device is located at the downstream of the gas ratio valve installation position, and the frequency conversion fan and the nozzle flow resistance module are connect with the premixed device；The corresponding gas ratio valve installation position is equipped with pressure tappings, Smaller load pressure tap and big load pressure tap before valve, output pressure when output pressure and gas ratio valve maximum opening when being respectively intended to obtain primary pressure, gas ratio valve minimum aperture；The corresponding gas ratio valve installation position and the frequency conversion fan are equipped with controller, for controlling the on-off of gas ratio valve and the air quantity of frequency conversion fan.The present invention has debugging convenient and simple, time saving and energy saving, facilitates the characteristics of realizing batch application.The present invention also provides a kind of presetting methods of gas ratio valve.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of gas proportion preset and methods.
Background technique
In current wall-hung boiler and water heater, there are mainly two types of gas valves, and one is electric mechanical valves, and one is pneumatic operated valves.
The former has set up the minimum and maximum limit value of mechanical opening when leaving the factory, in complete machine in application, need to only control electric signal assigns machine
The opening size of tool valve；And pneumatic operated valve is then different, electric signal can only control the on off operating mode of pneumatic operated valve, not can control combustion
The opening size of air valve.It is typically employed in that full premix combustion is technical, cooperates the pre- of DC frequency-changing blower and corresponding opening size
Mixed device.In use, pneumatic operated valve becomes larger with becoming larger for air quantity after limiting minimum and maximum aperture, becomes smaller and become smaller.But
It is often least readily, to be typically necessary by flue gas analyzer, root when limiting the minimum and maximum aperture of pneumatic operated valve
According to CO after complete machine fuel gas buring2Discharge content depending on, and flue gas analyzer instrument is more expensive, precision it is poor 3~50,000, precision
It is calibrated up to 30~400,000 (equipment configured depending on instrument flue gas analysis method).Very time-consuming, laborious, technology content
Height, cost configuration rates are also expensive.Furthermore in the full premix wall-hung boiler of production or water heater, valve body is debugged than relatively time-consuming, need to be borrowed
Help flue gas analyzer.Or when after-sale service needs replacing pneumatic type gas valve, it is also necessary to be equipped with flue gas analyzer, otherwise without
Method judgement or debugging, replacement valve body, if debugging matching is uneven, full premix combustion igniting may occur detonation, generate ignition noise
Bad phenomenon.
Summary of the invention
Aiming at the problems existing in the prior art, the purpose of the present invention is to provide one kind without flue gas analyzer,
Debug conveniently gas ratio valve preset.
To achieve the above objectives, the present invention adopts the following technical scheme that.
A kind of gas ratio valve preset characterized by comprising gas circuit, be arranged in pressure regulator valve in the gas circuit,
Gas ratio valve installation position, premixed device, frequency conversion fan and nozzle flow resistance module, the pressure regulator valve are located at gas ratio valve peace
The upstream of position is filled, the premixed device is located at the downstream of the gas ratio valve installation position, the frequency conversion fan and the nozzle stream
Resistance module is connect with the premixed device；The corresponding gas ratio valve installation position be equipped with pressure tappings before valve, Smaller load pressure tap and
Big load pressure tap, output pressure and gas ratio valve when being respectively intended to obtain primary pressure, gas ratio valve minimum aperture are most
Output pressure when big aperture；The corresponding gas ratio valve installation position and the frequency conversion fan are equipped with controller, for controlling
The on-off of gas ratio valve and the air quantity of frequency conversion fan.
As a further illustration of the above scheme, being equipped with pressure reducing valve in the gas circuit, the pressure reducing valve is located at the tune
The upstream of pressure valve.
As a further illustration of the above scheme, the moisture separation device for being used to remove water is equipped in the gas circuit, it is described
Moisture separation device is located at the upstream of the gas ratio valve installation position.
It is used to carry out the dry filter device of removal of impurities as a further illustration of the above scheme, being equipped in the gas circuit,
The filter device is located at the upstream of the gas ratio valve installation position.
As a further illustration of the above scheme, being equipped with shut-off valve in the gas circuit, the shut-off valve is located at the combustion
The upstream of gas proportioning valve installation position.
As a further illustration of the above scheme, being equipped with flowmeter in the gas circuit.
The present invention also provides a kind of presetting methods of gas ratio valve, which comprises the following steps:
1) using cooperate machine debugging good gas ratio valve as standard valve, complete machine includes wall-hung boiler and water heater；
2) complete machine gas circuit is simulated, to standard valve one set input air pressure PA, changes standard valve using frequency conversion fan
Aperture measures standard valve the output pressure PB in minimum aperture and the output pressure PC in maximum opening；
3) do not change the structure of simulation complete machine gas circuit and the running parameter of frequency conversion fan, it is same to the input of presetting gas ratio valve
The air pressure PA of sample measures standard valve the output pressure PB ' in minimum aperture and the output pressure PC ' in maximum opening；
4) if PB and PB ' is identical or in error range and PC and PC ' is identical or in error range, determine to adjust
Examination is accurate, and any group of comparison data has deviation or beyond error range, then needs further to debug.
As a further illustration of the above scheme, the input air pressure is formed by the compressed air for being passed through gas circuit.
As a further illustration of the above scheme, the compressed air carries out before entering standard valve or presetting gas ratio valve
Steam separating treatment and filtration treatment.
As a further illustration of the above scheme, the input air pressure PA, output pressure PB and output pressure PC are adopted respectively
It is measured with different minute-pressures, step 3) uses and the consistent differential manometer of step 2).
The beneficial effects of the present invention are:
One, by simulating the gas circuit structure of gas-fired equipment, pre- timing facilitates letter without the equipment such as flue gas analyzer, debugging
It is single, time saving and energy saving, facilitate realization batch application, gas ratio valve debugging efficiency is effectively provided.
Two, using compressed air as gas source, safety coefficient is high, no poisoning hidden danger.
Three, using to mark principle, for gas ratio valve production and provide a kind of convenient, reliable presetting method after sale.
Detailed description of the invention
Fig. 1 show gas ratio valve preset structural schematic diagram provided by the invention.
Description of symbols:
1: gas circuit, 2: pressure regulator valve, 3: gas ratio valve installation position, 4: premixed device, 5: frequency conversion fan, 6: nozzle flow resistance mould
Block, 7: pressure tappings before valve, 8: Smaller load pressure tap, 9: big load pressure tap, 10: controller, 11: pressure reducing valve, 12: steam separation
Device, 13: filter, 14: shut-off valve, 15: loose joint or grafting connector.
Specific embodiment
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term " center " for the noun of locality
To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top",
The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position
Relationship is set, the narration present invention is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary
It constructs and operates with specific orientation, with particular orientation, should not be understood as limiting specific protection scope of the invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include
One or more this feature, in the present description, " at least " are meant that one or more, unless otherwise clearly having
The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term
Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It is also possible to mechanical connect
It connects；It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For ability
For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In invention, unless otherwise specified and limited, fisrt feature second feature "upper" or "lower" may include
First and second features directly contact, also may include fisrt feature and second feature be not direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " include fisrt feature
Right above two features and oblique upper, or be only to indicate that first feature horizontal height is higher than the height of second feature.Fisrt feature
Second feature " on ", " under " and " below " include that fisrt feature is directly under or diagonally below the second feature, or only table
Show first feature horizontal height lower than second feature.
Below with reference to the attached drawing of specification, a specific embodiment of the invention is further described, is made of the invention
Technical solution and its benefits are clearer.It describes embodiment below with reference to attached drawing to be exemplary, it is intended to solve
The present invention is released, and is not considered as limiting the invention.
As shown in Figure 1, a kind of gas ratio valve preset characterized by comprising gas circuit 1 is arranged in the gas circuit
Pressure regulator valve 2, gas ratio valve installation position 3, premixed device 4, frequency conversion fan 5 and nozzle flow resistance module 6 on 1, the pressure regulator valve 2
In the upstream of the gas ratio valve installation position 3, the premixed device 4 is located at the downstream of the gas ratio valve installation position 3, described
Frequency conversion fan 5 and the nozzle flow resistance module 6 are connect with the premixed device 4；The corresponding gas ratio valve installation position 3 is equipped with valve
Preceding pressure tappings 7, Smaller load pressure tap 8 and big load pressure tap 9, are respectively intended to obtain primary pressure, gas ratio valve minimum aperture
When output pressure and gas ratio valve maximum opening when output pressure；The corresponding gas ratio valve installation position 3 and described
Frequency conversion fan 5 is equipped with controller 10, for controlling the on-off of gas ratio valve and the air quantity of frequency conversion fan.
Wherein, the upstream, downstream are determined with the gas flow direction in air flue 1, and position that gas first reaches is upper
Trip, the position reached afterwards are downstream.
Loose joint or grafting connector 15 are equipped on the gas ratio valve installation position 3.Practical pre- timing, using calibration method.
1) it is the gas valve for cooperating complete machine burning to debug, also referred to as standard valve to mark gas valve, standard valve is packed into gas ratio valve
In installation position 3, under the upstream pressure of general PA=2000pa or so, controller control is in minimum or maximum DC fan and is somebody's turn to do
When standard valve action, which contains minimum aperture pressure detecting interface and maximum opening pressure detecting interface, respectively with micro-
Pressure meter records its pressure value PB, PC, as to mark benchmark reference point.2) by standard valve to after mark, be changed to pre-debug valve body,
Keep pressure size constant, controller control signal is constant to be waited under the same terms, and the minimum and maximum for adjusting pneumatic operated valve respectively is opened
Degree, so that PB, PC base of the minimum aperture pressure detection value PB ' and maximum opening pressure detection value PC ' of gas valve and standard valve
Quasi- reference point is carried out to mark, it is identical or debug in error range it is accurate, if having deviation or debugging valve beyond error range
And there is also deviations for the maximum or minimum aperture of reference valve, need to further debug.
The input air pressure PA, output pressure PB and output pressure PC are respectively adopted different minute-pressures and measure, presetting
When, gas ratio valve is only replaced, differential manometer is not replaced.
In the present embodiment, the input air pressure is formed by the compressed air for being passed through gas circuit, and safety is without poisoning hidden danger.Due to pressure
The air pressure of contracting air is much higher, and combustion gas air pressure requires, so pressure reducing valve need to be configured, to make to press in 2000pa or so when normal use
The pressure of contracting air is consistent with pressure when normal use.Compressed air typically contains steam or granule foreign, and when use needs water
Vapour separating treatment and filtering avoid the internal structure of damage pre-debug valve.Thus correspondingly, in the gas ratio valve installation position
Upstream be equipped with pressure reducing valve 11, moisture separation device 12 and filter 13.And it is DC fan in pre-debug device, matched
Premixed device, nozzle flow resistance module and equal-wattage section complete machine configuration be consistent, power section it is different ought to matched premixed device,
Blower and nozzle flow resistance module should also change, with complete machine configuration consistency.
Further, it is equipped with shut-off valve 14 and flowmeter, in the gas circuit 1 to control the logical of gas circuit 1 as needed
It is disconnected and observe gas flow in solution gas circuit 1.
Gas ratio valve preset provided in this embodiment, by simulate gas-fired equipment gas circuit structure, pre- timing without
The equipment such as flue gas analyzer are needed, it is convenient and simple, time saving and energy saving to debug, and facilitates realization batch application, effectively offer gas ratio valve
Debugging efficiency.Meanwhile using compressed air as gas source, safety coefficient is high, provides for production and after sale a kind of convenient, reliable
Presetting method.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the present invention not office
It is limited to above-mentioned specific embodiment, this hair is all fallen within using the improvement of techniques well known and substitution on the basis of the present invention
Bright protection scope, protection scope of the present invention should limit it by each claim and its equivalent.In specific embodiment
The part not illustrated is the prior art or common knowledge.
Claims (10)
1. a kind of gas ratio valve preset characterized by comprising gas circuit, the pressure regulator valve being arranged in the gas circuit fire
Gas proportioning valve installation position, premixed device, frequency conversion fan and nozzle flow resistance module, the pressure regulator valve are located at gas ratio valve installation
The upstream of position, the premixed device are located at the downstream of the gas ratio valve installation position, the frequency conversion fan and the nozzle flow resistance
Module is connect with the premixed device；The corresponding gas ratio valve installation position is equipped with pressure tappings before valve, Smaller load pressure tap and big
Load pressure tap, the output pressure and gas ratio valve when being respectively intended to obtain primary pressure, gas ratio valve minimum aperture are maximum
Output pressure when aperture；The corresponding gas ratio valve installation position and the frequency conversion fan are equipped with controller, for controlling combustion
The on-off of gas proportioning valve and the air quantity of frequency conversion fan.
2. a kind of gas ratio valve preset according to claim 1, which is characterized in that be equipped with and subtract in the gas circuit
Pressure valve, the pressure reducing valve are located at the upstream of the pressure regulator valve.
3. a kind of gas ratio valve preset according to claim 1, which is characterized in that be equipped with and use in the gas circuit
Come the moisture separation device removed water, the moisture separation device is located at the upstream of the gas ratio valve installation position.
4. a kind of gas ratio valve preset according to claim 1, which is characterized in that be equipped with and use in the gas circuit
The dry filter device of removal of impurities is carried out, the filter device is located at the upstream of the gas ratio valve installation position.
5. a kind of gas ratio valve preset according to claim 1, which is characterized in that be equipped with and cut in the gas circuit
Only valve, the shut-off valve are located at the upstream of the gas ratio valve installation position.
6. a kind of gas ratio valve preset according to claim 1, which is characterized in that be equipped with stream in the gas circuit
Meter.
7. a kind of presetting method of gas ratio valve, which comprises the following steps:
1) using cooperate machine debugging good gas ratio valve as standard valve, complete machine includes wall-hung boiler and water heater；
2) complete machine gas circuit is simulated, to standard valve one set input air pressure PA, change the aperture of standard valve using frequency conversion fan,
Measure output pressure P of the standard valve in minimum apertureBWith the output pressure P in maximum openingC；
3) do not change the structure of simulation complete machine gas circuit and the running parameter of frequency conversion fan, it is same to the input of presetting gas ratio valve
Air pressure PA, measure output pressure P of the standard valve in minimum apertureB' and output pressure P in maximum openingC′；
If 4) PBAnd PB' identical or in error range and PCAnd PC' identical or in error range, then determine that debugging is accurate,
Any group of comparison data has deviation or beyond error range, then needs further to debug.
8. a kind of presetting method of gas ratio valve according to claim 7, which is characterized in that the input air pressure is by being passed through
The compressed air of gas circuit is formed.
9. a kind of presetting method of gas ratio valve according to claim 8, which is characterized in that the compressed air enters mark
Steam separating treatment and filtration treatment are carried out before quasi- valve or presetting gas ratio valve.
10. a kind of presetting method of gas ratio valve according to claim 7, which is characterized in that the input air pressure PA, it is defeated
Air pressure P outBWith output pressure PCDifferent minute-pressures is respectively adopted to measure, step 3) uses and the consistent differential manometer of step 2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810920160.6A CN109099455A (en) | 2018-08-14 | 2018-08-14 | A kind of gas ratio valve preset and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810920160.6A CN109099455A (en) | 2018-08-14 | 2018-08-14 | A kind of gas ratio valve preset and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099455A true CN109099455A (en) | 2018-12-28 |
Family
ID=64849436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810920160.6A Pending CN109099455A (en) | 2018-08-14 | 2018-08-14 | A kind of gas ratio valve preset and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300066A (en) * | 1997-04-25 | 1998-11-13 | Toto Ltd | Proportional valve adjustor for combustion apparatus |
| CN1948938A (en) * | 2006-10-31 | 2007-04-18 | 浙江春晖智能控制股份有限公司 | Method for testing flow proportional valve characteristic curve |
| CN102563886A (en) * | 2012-01-06 | 2012-07-11 | 广东万家乐燃气具有限公司 | Adaptive gas water heater, system thereof and method for automatically judging gas types |
| CN104903695A (en) * | 2014-09-19 | 2015-09-09 | 杨顺伟 | Static characteristic testing system and testing method for an industrial control valve |
| CN204987014U (en) * | 2015-07-07 | 2016-01-20 | 广东诺科冷暖设备有限公司 | Hanging stove closed loop low -nitrogen combustion control system |
| CN106970608A (en) * | 2017-04-01 | 2017-07-21 | 成都中科慧源科技有限公司 | A kind of gas fired water heater main controller automatic test fixture and method of testing |
| CN107869492A (en) * | 2017-11-24 | 2018-04-03 | 中山市铧禧电子科技有限公司 | A kind of proportioning valve is performance test bed |
| CN209026850U (en) * | 2018-08-14 | 2019-06-25 | 万家乐热能科技有限公司 | A kind of gas ratio valve preset |
-
2018
- 2018-08-14 CN CN201810920160.6A patent/CN109099455A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10300066A (en) * | 1997-04-25 | 1998-11-13 | Toto Ltd | Proportional valve adjustor for combustion apparatus |
| CN1948938A (en) * | 2006-10-31 | 2007-04-18 | 浙江春晖智能控制股份有限公司 | Method for testing flow proportional valve characteristic curve |
| CN102563886A (en) * | 2012-01-06 | 2012-07-11 | 广东万家乐燃气具有限公司 | Adaptive gas water heater, system thereof and method for automatically judging gas types |
| CN104903695A (en) * | 2014-09-19 | 2015-09-09 | 杨顺伟 | Static characteristic testing system and testing method for an industrial control valve |
| CN204987014U (en) * | 2015-07-07 | 2016-01-20 | 广东诺科冷暖设备有限公司 | Hanging stove closed loop low -nitrogen combustion control system |
| CN106970608A (en) * | 2017-04-01 | 2017-07-21 | 成都中科慧源科技有限公司 | A kind of gas fired water heater main controller automatic test fixture and method of testing |
| CN107869492A (en) * | 2017-11-24 | 2018-04-03 | 中山市铧禧电子科技有限公司 | A kind of proportioning valve is performance test bed |
| CN209026850U (en) * | 2018-08-14 | 2019-06-25 | 万家乐热能科技有限公司 | A kind of gas ratio valve preset |
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