CN208887086U - A kind of gas heater - Google Patents
A kind of gas heater Download PDFInfo
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- CN208887086U CN208887086U CN201821187195.5U CN201821187195U CN208887086U CN 208887086 U CN208887086 U CN 208887086U CN 201821187195 U CN201821187195 U CN 201821187195U CN 208887086 U CN208887086 U CN 208887086U
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- gas
- wind pressure
- gas heater
- ontology
- combustion chamber
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Abstract
The utility model relates to a kind of gas heaters, including ontology, controller, fire row, the sense fire needle being arranged with the blower of combustion chamber, the combusted proportion valve being arranged on blast tube, close fire row are provided in ontology, the wind pressure sensor of the exhaust ports of ontology is set, and controller is electrically connected with blower, gas ratio valve, the fiery needle of sense and wind pressure sensor respectively.Gas heater in the utility model realizes the adjusting to rotation speed of fan by the comparison to the real-time working electric current and standard operating current of feeling fiery needle.The gas heater is more directly accurate to judgement of the extraneous wind pressure to the combustion effects of gas heater, can guarantee the stability of burning.The Wind-Pressure Resistance control method of the gas heater realizes the thermostatic control to water outlet simultaneously, realizes the temperature uniformity of water outlet, improves user experience.
Description
Technical field
The utility model relates to gas heater technical field, in particular to a kind of gas heater.
Background technique
Gas heater is widely used as a kind of common household electrical appliance.With universal, the combustion of high residential building
The high-rise Wind-Pressure Resistance that gas water heater faces becomes challenge, especially coastal area, and sea wind is bigger, and has a bit of when summer
Wind weather, existing water heater are easy to appear flame-out, burning up to not in the high Wind-Pressure Resistance situation of reply such as summer typhoon weather
To set temperature, flue gas is bad phenomena such as, influence customer's use, user experience is poor.The prior art or be to be not added with wind resistance
Pressure function or be by calculate demand load carry out Wind-Pressure Resistance, load is estimated data, and there are deviations, it may appear that temperature uniformity
Bad phenomenon influences customer's use.Application publication number is in CN107525265D (application No. is 201610472797.4)
State's application for a patent for invention " a kind of blowing type gas water heater compensated using flame temperature detection and wind speed ", disclosed in hot water
Whether device, blocked by measurement chamber temperature judging exhaust outlet or whether extraneous wind pressure is excessive, when measuring burning room temperature
When degree reaches or is higher than certain predetermined value, by improving rotation speed of fan come increasing exhaust amount, but the program is realizing wind resistance
Temperature persistance is given up when pressing function, it is bad to will lead to user experience.In addition, when increasing rotation speed of fan, into combustion chamber
Interior air capacity increases, and indoor air pressure of burning increases, the shadow if aperture of proportioning valve remains unchanged, by burning room pressure
Ring, can accordingly be reduced into gas quantity, it is possible that it is flame-out, pass fire failure, that set temperature, flue gas is not achieved in burning is bad etc. existing
As.
Utility model content
Technical problem to be solved in the utility model is to provide one kind for the above-mentioned prior art to stablize burning, together
When can guarantee water outlet temperature persistance gas heater.
The technical scheme in the invention for solving the above technical problem are as follows: a kind of gas heater, including ontology, it is described
Controller, combustion chamber, fire row are provided in ontology, the combustion gas that combustion gas is supplied with the blower of combustion chamber, for combustion chamber is logical
Road, the gas ratio valve being arranged on blast tube, the controller are electrically connected with blower, gas ratio valve respectively, feature
It is: is additionally provided with the sense fire needle for detecting flame status in the ontology, the fiery needle of the sense is arranged close to fire row, and described
The exhaust ports of body are provided with wind pressure sensor, and the fiery needle of the sense, wind pressure sensor are electrically connected with the controller.
To guarantee the air pressure balance to burn between indoor air pressure and blast tube, between the combustion chamber and blast tube
It is connected with the tube body of perforation.
Preferably, position of one end connection combustion chamber above fire row one end of the tube body, the tube body it is another
End is connected on the gas outlet of gas ratio valve.
In order to facilitate acquisition wind pressure data, it is connected on the exhaust outlet of the ontology for acquiring ontology exhaust ports wind pressure
Wind pressure collection tube, the wind pressure sensor is arranged in the wind pressure collection tube.
Compared with the prior art, the advantages of the utility model are: the electric current that the gas heater is acquired according to fiery needle is felt
Whether data real-time judge external world's wind pressure has an impact to the burning of gas heater, and so extraneous wind pressure is to gas heater
Burning is directly obtained by feeling the variation of fiery needle electric current, more straight to judgement of the extraneous wind pressure to the combustion effects of gas heater
It is accurate to connect, and then realizes the adjusting to blower wind speed, in whole work process, due to being monitored in real time to the fiery needle electric current of sense,
It can guarantee the stability of burning.The Wind-Pressure Resistance control method of the gas heater in the utility model is being realized to blower simultaneously
It on the basis of the adjusting of revolving speed, realizes and PID control is carried out to temperature, realize the thermostatic control to water outlet, it is ensured that the constant temperature of water outlet
Property, improve user experience.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of gas heater in the utility model embodiment.
Fig. 2 is the electrical diagram of gas heater in the utility model embodiment.
Fig. 3 is the flow chart of gas heater Wind-Pressure Resistance control method in the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As depicted in figs. 1 and 2, the gas heater in the present embodiment, including ontology 1.The ontology 1 can be using existing logical
Gas heater structure wherein has combustion chamber 3, fire row 7, blast tube 5, blower 4, feels fiery needle 6, fire in the ontology 1
Row 7 is mounted on combustion chamber 3, and blast tube 5 is connected with combustion chamber 3, and combustion chamber 3 is also provided with and communicated with air duct, and blower 4 is arranged
In air duct.The exhaust ports of combustion chamber 3 are additionally provided with wind pressure sensor 9, in the present embodiment, connect outward in the exhaust outlet of ontology
It is connected to a wind pressure collection tube 91, wind pressure sensor 9 is arranged in the wind pressure collection tube 91, and then is not influencing exhaust outlet row
On the basis of gas, the wind pressure data acquisition to exhaust ports wind pressure is realized.
Blast tube 5 is provided with gas ratio valve 51, feels fiery needle 6 and is located near fire row 7, for detecting the flame of fire row 7
Situation.Controller 2 is additionally provided in ontology 1, the controller 2 respectively with blower 4, gas ratio valve 51, feel fiery needle 6 and wind pressure
Sensor 9 is electrically connected.
In addition, being connected with the tube body 8 of perforation between the combustion chamber 3 in the present embodiment and blast tube 5.It will in the present embodiment
Between 51 gas outlet of top and gas ratio valve for 7 side of fire row that the tube body 8 connection is mounted on combustion chamber 3, which can be protected
The air pressure of 51 gas outlet of air pressure and gas ratio valve in card combustion chamber 3 balances each other, and alleviates the ratio when increasing by 4 revolving speed of blower
Valve electric current enters the phenomenon that combustion gas is reduced in combustion chamber 3 in the case where remaining unchanged.When the air pressure balance of two sides, 4 turns of blower are improved
After speed, the air pressure in combustion chamber 3 remains at the state of a balance, and proportioning valve electric current is constant, and air inflow also remains unchanged, because
This can preferably realize constant temperature to avoid phenomena such as flame-out, biography fire fails, set temperature is not achieved in burning, flue gas is bad
Performance.
At work, controller 2 obtains in real time feels the fiery operating current of needle 6 and the wind pressure data of wind pressure sensor 9, into
And judge influence of the extraneous wind pressure to gas heater combustion case, and then according to the situation control to blower 4 in real time is influenced, protect
It demonstrate,proves in combustion chamber 3 and works normally, guarantee the temperature persistance of leaving water temperature.
As shown in figure 3, in the present embodiment gas heater Wind-Pressure Resistance control method, comprising the following steps:
After S0, gas heater are opened, water-flow signal, after obtaining water-flow signal, controller 2 are detected by controller 2
Control igniting heating；
Whether the current detecting igniting by feeling fiery needle 6 succeeds, and S1 is carried out if lighting a fire successfully, if loss of ignition
Igniting is re-started, while ignition times are counted；
If loss of ignition number is more than the frequency of failure threshold value of setting, gas heater failure is judged；
It after judging gas heater failure, then detects whether water heater failure is eliminated, detects water flow again if eliminating
Signal, and then controlled and lighted a fire according to water-flow signal；
S1, it obtains feel 6 electric current N of fiery needle in real time, obtain the wind pressure data P of exhaust ports in real time, obtain current wind in real time
4 revolving speed w of machine；
S2, gas heater factory before, the corresponding standard electric fluxion of various wind pressure datas can be stored in controller 2
According to wherein normalized current data indicate that external wind pressure burns without constantly 6 electric current of the fiery needle of sense is influenced, in experiment rank on gas heater
Section acquires corresponding burn on gas heater of a certain wind pressure data and constantly feels 6 current value of fiery needle without influence, and then according to average
It calculates and obtains the corresponding normalized current data of a certain wind pressure data；
According to the corresponding normalized current data M of the wind pressure data P of storage, X=is calculated | N-M |；Wherein M is indicated in external wind
6 electric current of fiery needle is constantly felt without influence on gas heater burning when pressure is P；Normalized current data M and in real time 6 electric current of the fiery needle of sense
For N there are when difference, i.e. the burning of gas heater receives the interference of extraneous wind pressure, does phase according to the current deviation value detected
4 speed considerations of blower answered, the actual current for making it feel fiery needle 6 are finally reached normalized current data or normalized current data pair
The normalized current section answered；
Simultaneously judge whether M >=N >=α, if it is not, then judge gas heater break down, wherein α for can Wind-Pressure Resistance when
Flow through the maximum current for feeling fiery needle 6；If it is S3 is carried out；
S3, judge whether X≤D, wherein D is the current threshold of compensating rotational speed adjustment, D=10 μ A in the present embodiment；If
It is to carry out S4, if otherwise carrying out S5；
S4, it is by 4 rotational speed regulation of blowerWherein W is 4 rotary speed data of blower adjusted,For 4 revolving speed of blower
Constant data is compensated,The rated value obtained for the experimental stage；
S5, judgement when time X > D duration t whether be more than compensating rotational speed adjustment time threshold T, if it is, will
4 rotational speed regulation of blower isWherein K is the corresponding penalty coefficient of wind pressure data P of storage, and wherein K is also experiment
The constant value that stage test obtains；T=10s in the present embodiment；
If otherwise carrying out S4；
S6, PID control is carried out to the leaving water temperature of gas heater.
During the gas water heater working, the external world is sentenced with the presence or absence of wind pressure according to the metamorphosis of flame
It is disconnected, i.e., judged by feeling influence of the fiery 6 current versus circle wind pressure of needle to flame.And then by improving 4 revolving speed of DC fan,
Achieve the effect that Wind-Pressure Resistance, while guaranteeing the air pressure phase of 51 gas outlet of air pressure and gas ratio valve in combustion chamber 3 by tube body 8
Balance, and then can ensure to stablize when there is wind pressure in the external world and burn and to be discharged temperature persistance guaranteed.I.e. by structure improve and
The improvement of control method, common realize work to the Wind-Pressure Resistance of gas heater.In this process, feeling fiery 6 electric current of needle is flame
Form visual feedback, the size of fiery 6 electric current of needle is felt by detection to judge whether extraneous wind pressure has an impact more to burning
Directly accurate, regulating effect is more preferable.
Claims (4)
1. a kind of gas heater, including ontology (1), the ontology (1) is interior to be provided with controller (2), combustion chamber (3), fire row
(7), the blower (4) that is connected with combustion chamber (3), the blast tube (5) that combustion gas is supplied for combustion chamber (3), setting are logical in combustion gas
Gas ratio valve (51) on road (5), the controller (2) are electrically connected with blower (4), gas ratio valve (51) respectively, special
Sign is: the sense fire needle (6) for detecting flame status is additionally provided in the ontology, the fiery needle (6) of the sense is close to fire row (7)
Setting, the exhaust ports of the ontology (1) are provided with wind pressure sensor (9), the fiery needle (6) of the sense, wind pressure sensor (9) and control
Device (2) electrical connection processed.
2. gas heater according to claim 1, it is characterised in that: between the combustion chamber (3) and blast tube (5)
It is connected with the tube body (8) of perforation.
3. gas heater according to claim 2, it is characterised in that: one end connection combustion chamber of the tube body (8) is leaned on
Position above nearly fire row (7) one end, the other end of the tube body (8) are connected on the gas outlet of gas ratio valve (51).
4. according to claim 1 to gas heater described in 3 any claims, it is characterised in that: the row of the ontology (1)
The wind pressure collection tube (91) for acquiring ontology (1) exhaust ports wind pressure, wind pressure sensor (9) setting are connected on port
In the wind pressure collection tube (91).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187195.5U CN208887086U (en) | 2018-07-25 | 2018-07-25 | A kind of gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187195.5U CN208887086U (en) | 2018-07-25 | 2018-07-25 | A kind of gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887086U true CN208887086U (en) | 2019-05-21 |
Family
ID=66507461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187195.5U Active CN208887086U (en) | 2018-07-25 | 2018-07-25 | A kind of gas heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208887086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285583A (en) * | 2019-06-18 | 2019-09-27 | 华帝股份有限公司 | Control method of constant-temperature water heater |
| CN110779214A (en) * | 2019-09-29 | 2020-02-11 | 华帝股份有限公司 | Control method of gas water heater |
-
2018
- 2018-07-25 CN CN201821187195.5U patent/CN208887086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285583A (en) * | 2019-06-18 | 2019-09-27 | 华帝股份有限公司 | Control method of constant-temperature water heater |
| CN110779214A (en) * | 2019-09-29 | 2020-02-11 | 华帝股份有限公司 | Control method of gas water heater |
| CN110779214B (en) * | 2019-09-29 | 2021-04-27 | 华帝股份有限公司 | Control method of gas water heater |
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