CN209371532U - The control system of gas heater and gas heater with it - Google Patents
The control system of gas heater and gas heater with it Download PDFInfo
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- CN209371532U CN209371532U CN201821875278.3U CN201821875278U CN209371532U CN 209371532 U CN209371532 U CN 209371532U CN 201821875278 U CN201821875278 U CN 201821875278U CN 209371532 U CN209371532 U CN 209371532U
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Abstract
The utility model relates to a kind of control systems of gas heater, including data acquisition circuit, master controller, Proportion valve controlling circuit, gas ratio valve, blower power supply circuit, draught fan control circuit and DC speed control fan；The output end of data acquisition circuit, the input terminal of Proportion valve controlling circuit, the control terminal of blower power supply circuit, draught fan control circuit input terminal connect respectively with master controller, the output end of Proportion valve controlling circuit is connect with gas ratio valve；The feeder ear of blower power supply circuit, the output end of draught fan control circuit are connect with DC speed control fan respectively.Control system provided by the utility model pass through compare in real time the real-time output load of gas heater with the case where reference load to determine whether needing that gas ratio valve electric current and blower electric current is adjusted, to which gas ratio valve, DC speed control fan be adjusted, gas heater is worked stablely, reliable and energy-saving under different gas sources, improves gas heater adaptive ability.
Description
Technical field
The utility model relates to gas heater technical fields, more particularly, to a kind of control system of gas heater
System and with its gas heater.
Background technique
The gas heater that the prior art provides is to carry out air volumematching according to the specific benchmark gas source used in design
Proportion, gas heater also can guarantee normal combustion in the case where appropriate variation occurs for gas source component of the same race, but when gas source component is sent out
When life is larger or substantially changes, gas heater just will appear various abnormal phenomenon, and gas heater can not be normal when serious
Work brings inconvenience to user's life.
With the implementation of European EN26 standard, requirements at the higher level are proposed to gas heater comprehensive performance, are surveyed under benchmark gas source
Try NOXDischarge amount will meet less than 56mg/kwh, and test burning will stablize under various limit gas, and CO discharge index will meet sternly
The prescribed requirement of lattice, gas heater in the prior art are difficult to meet the requirements, and more performance requirement restricts in EN26 standard
The paces of domestic most producers outlets.
Utility model content
The utility model is to solve the gas heater that provides of the prior art to occur larger in gas source component or substantially become
The technological deficiency that existing gas heater can not work normally when change provides a kind of control system of gas heater.
To realize the above purpose of utility model, the technical solution adopted is that:
A kind of control system of gas heater, including data acquisition circuit, master controller, Proportion valve controlling circuit, combustion
Gas proportioning valve, blower power supply circuit, draught fan control circuit and DC speed control fan；Output end, the proportioning valve of data acquisition circuit
The input terminal of control circuit, the control terminal of blower power supply circuit, draught fan control circuit input terminal connect respectively with master controller,
The output end of Proportion valve controlling circuit is connect with gas ratio valve；The feeder ear of blower power supply circuit, draught fan control circuit it is defeated
Outlet is connect with DC speed control fan respectively.
In above scheme, data acquisition circuit is used for acquisition parameter, and the parameter of acquisition is transmitted to master controller, master control
Device processed calculates the real-time output load of gas heater based on the parameter of acquisition, by comparing the real-time defeated of gas heater in real time
Out load with the case where reference load to determine whether needing that gas ratio valve electric current and blower electric current is adjusted, if then
Gas ratio valve electric current is adjusted by Proportion valve controlling circuit, and by draught fan control circuit to DC speed control fan
Electric current is adjusted, so that gas ratio valve, DC speed control fan be adjusted.
Wherein blower power supply circuit provides working power, control of the draught fan control circuit in master controller for DC speed control fan
System is lower to provide pwm pulse modulated square wave for DC speed control fan, can be provided by changing PWM duty cycle for DC speed control fan
Corresponding control voltage and current, is rotated dc motor and is rotated with impeller.
Preferably, the data acquisition circuit includes inflow temperature sensor, leaving water temperature sensors and water flow sensing
Device, the output end of the output end of inflow temperature sensor, the output end of leaving water temperature sensors and water flow sensor respectively with
Master controller connection.In the parameter of control system acquisition provided by the utility model, including inflow temperature, leaving water temperature and water flow
Amount calculates the real-time output load of gas heater by these three parameters.
Preferably, control system further includes having current feedback circuit, the input terminal and DC speed regulation wind of current feedback circuit
Machine connection, the output end of current feedback circuit are connect with master controller.Current feedback circuit is master controller Real-time Feedback direct current
The current signal of adjustable speed fan.
Preferably, the control system further includes having speed feedback circuit, the input terminal and direct current tune of speed feedback circuit
Fast blower connection, the output end of speed feedback circuit are connect with master controller.Speed feedback circuit is master controller Real-time Feedback
The tach signal of DC speed control fan.
Preferably, the control system further includes having default display device, and default display device is connect with master controller.In advance
If display device is used to show the parameters such as parameter, gas ratio valve electric current, the blower electric current of acquisition.
Meanwhile the utility model additionally provides a kind of gas heater using the above control system.
Compared with prior art, the utility model has the beneficial effects that
Control system provided by the utility model passes through the real-time output load for comparing gas heater in real time and benchmark is negative
The case where lotus to determine whether need that gas ratio valve electric current and blower electric current is adjusted, thus to gas ratio valve, straight
Stream adjustable speed fan is adjusted, and gas heater is worked stablely, reliable and energy-saving under different gas sources, is mentioned
High gas heater adaptive ability brings comfortable domestic hot-water's demand for user.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of control system.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
The utility model is further elaborated below in conjunction with drawings and examples.
Embodiment 1
A kind of control system of gas heater is present embodiments provided, as shown in Figure 1, its specific scheme is as follows:
Including data acquisition circuit, master controller 1, Proportion valve controlling circuit 2, gas ratio valve 3, blower power supply circuit 4,
Draught fan control circuit 5 and DC speed control fan 6；The output end of data acquisition circuit, the input terminal of Proportion valve controlling circuit 2, wind
The control terminal of machine power supply circuit 4, the input terminal of draught fan control circuit 5 are connect with master controller 1 respectively, Proportion valve controlling circuit 2
Output end connect with gas ratio valve 3；The feeder ear of blower power supply circuit 4, draught fan control circuit 5 output end respectively and directly
Adjustable speed fan 6 is flowed to connect.
In above scheme, data acquisition circuit is used for acquisition parameter, and the parameter of acquisition is transmitted to master controller 1, main
Controller 1 calculates the real-time output load of gas heater based on the parameter of acquisition, by the reality for comparing gas heater in real time
When output load with the case where reference load to determine whether need that 3 electric current of gas ratio valve and blower electric current is adjusted,
If then 3 electric current of gas ratio valve is adjusted by Proportion valve controlling circuit 2, and by draught fan control circuit 5 to straight
Stream 6 electric current of adjustable speed fan is adjusted, so that gas ratio valve 3, DC speed control fan 6 be adjusted.
Wherein blower power supply circuit 4 is that DC speed control fan 6 provides working power, and draught fan control circuit 5 is in master controller 1
Control under be that DC speed control fan 6 provides pwm pulse modulated square wave, by change PWM duty cycle can be DC speed regulation wind
Machine 6 provides corresponding control voltage and current, rotates dc motor and is rotated with impeller.
In the present embodiment, the data acquisition circuit includes inflow temperature sensor 7, leaving water temperature sensors 8 and water flow
Quantity sensor 9, the output end of inflow temperature sensor 7, the output end of leaving water temperature sensors 8 and water flow sensor 9 it is defeated
Outlet is connect with master controller 1 respectively.In the parameter of control system provided by the utility model acquisition, including inflow temperature, go out
Coolant-temperature gage and water flow calculate the real-time output load of gas heater by these three parameters.
In the present embodiment, control system further includes having current feedback circuit 10, the input terminal of current feedback circuit 10 and straight
It flows adjustable speed fan 6 to connect, the output end of current feedback circuit 10 is connect with master controller 1.Current feedback circuit 10 is main control
The current signal of 1 Real-time Feedback DC speed control fan 6 of device.
In the present embodiment, the control system further includes having speed feedback circuit 11, the input terminal of speed feedback circuit 11
It is connect with DC speed control fan 6, the output end of speed feedback circuit 11 is connect with master controller 1.Based on speed feedback circuit 11
The tach signal of 1 Real-time Feedback DC speed control fan 6 of controller.
In the present embodiment, the control system further includes having default display device 12, presets display device 12 and main control
Device 1 connects.Default display device 12 is used to show the parameters such as parameter, 3 electric current of gas ratio valve, the blower electric current of acquisition.
Embodiment 2
Present embodiments provide a kind of gas heater of control system described in Application Example 2.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (6)
1. a kind of control system of gas heater, it is characterised in that: including data acquisition circuit, master controller (1), proportioning valve
Control circuit (2), gas ratio valve (3), blower power supply circuit (4), draught fan control circuit (5) and DC speed control fan (6)；Number
According to the output end of Acquisition Circuit, the input terminal of Proportion valve controlling circuit (2), the control terminal of blower power supply circuit (4), air-blower control
The input terminal of circuit (5) is connect with master controller (1) respectively, the output end of Proportion valve controlling circuit (2) and gas ratio valve (3)
Connection；The feeder ear of blower power supply circuit (4), the output end of draught fan control circuit (5) connect with DC speed control fan (6) respectively
It connects.
2. the control system of gas heater according to claim 1, it is characterised in that: the data acquisition circuit includes
Inflow temperature sensor (7), leaving water temperature sensors (8) and water flow sensor (9), the output of inflow temperature sensor (7)
The output end at end, the output end of leaving water temperature sensors (8) and water flow sensor (9) is connect with master controller (1) respectively.
3. the control system of gas heater according to claim 1, it is characterised in that: the control system further includes having
The input terminal of current feedback circuit (10), current feedback circuit (10) is connect with DC speed control fan (6), current feedback circuit
(10) output end is connect with master controller (1).
4. the control system of gas heater according to claim 1, it is characterised in that: the control system further includes having
The input terminal of speed feedback circuit (11), speed feedback circuit (11) is connect with DC speed control fan (6), speed feedback circuit
(11) output end is connect with master controller (1).
5. the control system of gas heater according to claim 1, it is characterised in that: the control system further includes having
Default display device (12), default display device (12) are connect with master controller (1).
6. a kind of gas heater, it is characterised in that: apply the described in any item control systems of claim 1 ~ 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875278.3U CN209371532U (en) | 2018-11-14 | 2018-11-14 | The control system of gas heater and gas heater with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821875278.3U CN209371532U (en) | 2018-11-14 | 2018-11-14 | The control system of gas heater and gas heater with it |
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| Publication Number | Publication Date |
|---|---|
| CN209371532U true CN209371532U (en) | 2019-09-10 |
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ID=67836898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821875278.3U Active CN209371532U (en) | 2018-11-14 | 2018-11-14 | The control system of gas heater and gas heater with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209371532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609560A (en) * | 2020-04-20 | 2020-09-01 | 芜湖美的厨卫电器制造有限公司 | Control method of gas water heater, gas water heater and computer readable storage medium |
| CN112113347A (en) * | 2020-09-14 | 2020-12-22 | 华帝股份有限公司 | Control method of water heater and water heater |
-
2018
- 2018-11-14 CN CN201821875278.3U patent/CN209371532U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609560A (en) * | 2020-04-20 | 2020-09-01 | 芜湖美的厨卫电器制造有限公司 | Control method of gas water heater, gas water heater and computer readable storage medium |
| CN111609560B (en) * | 2020-04-20 | 2022-05-31 | 芜湖美的厨卫电器制造有限公司 | Control method of gas water heater, gas water heater and computer readable storage medium |
| CN112113347A (en) * | 2020-09-14 | 2020-12-22 | 华帝股份有限公司 | Control method of water heater and water heater |
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