CN110762849A - Carbon monoxide detection linkage control system and control method - Google Patents
Carbon monoxide detection linkage control system and control method Download PDFInfo
- Publication number
- CN110762849A CN110762849A CN201910961583.7A CN201910961583A CN110762849A CN 110762849 A CN110762849 A CN 110762849A CN 201910961583 A CN201910961583 A CN 201910961583A CN 110762849 A CN110762849 A CN 110762849A
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- Prior art keywords
- carbon monoxide
- sliding
- cover plate
- air
- control system
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 85
- 229910002091 carbon monoxide Inorganic materials 0.000 title claims abstract description 85
- 238000001514 detection method Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 abstract description 19
- 238000002485 combustion reaction Methods 0.000 abstract description 14
- 239000002737 fuel gas Substances 0.000 abstract description 7
- 230000001502 supplementing effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 4
- 239000013589 supplement Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
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
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- 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 carbon monoxide detection linkage control system and a control method. The system comprises an air inlet adjusting device, a carbon monoxide detector and a main controller. The air inlet adjusting device comprises a cover plate, a slide rail and a slide driving mechanism, wherein the cover plate slides along the slide rail when driven by the slide driving mechanism. The carbon monoxide detector and the sliding driving mechanism are connected with the main controller. The method comprises the following steps: when the gas water heater works, receiving a CO content value detected by a carbon monoxide detector; comparing the received CO content value with a standard value range; and controlling the size of the air inlet according to the comparison result. The system and the method jointly control the variable air supplementing structure and the carbon monoxide detecting instrument, judge whether the air and fuel gas supplementing proportion reaches the optimal mixing state or not by detecting the content of CO under different states, realize that the adjustment of the air input of air participating in combustion is more accurate, the proportion of redundant air taking away heat is lower, and the control of the content of CO is more stable.
Description
Technical Field
The invention relates to a sliding driving structure and a gas detection and control technology, in particular to a carbon monoxide detection linkage control system and a control method.
Background
For consumers, safety and environmental protection of a gas water heater are extremely important indexes, and the influence on safety and environmental protection of the gas water heater on the market is mainly reflected in that when the water heater burns, the mixing ratio of gas and air is controlled to be relatively fuzzy, the gas and air are mixed unevenly, the emission of carbon monoxide and nitride cannot be well controlled, and the gas is wasted.
The reasons are mainly that when the gas water heater is combusted, the supply ratio of gas and air is mainly adjusted by adjusting the air flow of the fan, only part of fire is combusted during the sectional combustion, and the size of an air inlet is unchanged, so that no matter how the air flow of the fan is adjusted, a part of air always passes through an unburned fire zone, and not only can not be mixed with combusted gas to participate in the combustion, but also insufficient mixing of the gas and the air is easily caused for controlling the total flow; in the process of flow passing, the heat of the fuel gas is taken away, the combustion efficiency is reduced, and the phenomenon that the fuel gas and the air are not mixed sufficiently is easy to occur, so that the carbon monoxide exceeds the standard.
Disclosure of Invention
The invention aims to provide a carbon monoxide detection linkage control system and a control method, and solves the problems that the heat of combustion flame is taken away by the supply of redundant air and the carbon monoxide exceeds the standard due to insufficient air supplement for controlling the total flow of air.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one aspect, the invention provides a carbon monoxide detection linkage control system. The carbon monoxide detection linkage control system comprises an air inlet adjusting device, a carbon monoxide detector and a main controller, wherein the air inlet adjusting device comprises a cover plate, a slide rail and a slide driving mechanism, and the cover plate slides along the slide rail when driven by the slide driving mechanism; the carbon monoxide detector and the sliding driving mechanism are connected with the main controller.
Optionally, for carbon monoxide detects coordinated control system, slip actuating mechanism includes the rotation axis, is equipped with the sliding tooth that extends parallel to its slip direction on the apron, and the cover is slided along the slide rail in the cover interlock of sliding tooth that round gear can be put on the rotation axis on with the apron, and the round gear can drive the apron through the rotation of rotation axis is rotatory.
Optionally, for the carbon monoxide detection coordinated control system, the sliding driving mechanism further comprises a driving solenoid valve, the rotating shaft is connected with the driving solenoid valve, and the driving solenoid valve is connected with the main controller.
Optionally, for the carbon monoxide detection linkage control system, the rotating shaft is sleeved with a rotating sleeve on the driving electromagnetic valve, and when the driving electromagnetic valve works and rotates, the rotating shaft is driven to rotate.
Optionally, for the co detection coordinated control system, the edge of the cover plate at the air inlet is provided with serrations arranged along the edge.
Optionally, for the carbon monoxide detection coordinated control system, the edge of the cover plate perpendicular to the edge provided with the saw teeth is provided with a sliding shaft, the sliding rail comprises a sliding groove, and the sliding shaft is installed in the sliding groove of the sliding rail.
On the other hand, the invention provides a control method of the carbon monoxide detection linkage control system. The control method comprises the following steps: when the gas water heater works, receiving the carbon monoxide content value detected by the carbon monoxide detector; comparing the received carbon monoxide content value with a standard value range; the size of the air inlet is controlled according to the comparison result.
Optionally, for the control method, controlling the size of the air intake port according to the comparison result includes: the current size of the air intake port is maintained when the received carbon monoxide content value is within a standard range.
Optionally, for the control method, controlling the size of the air intake port according to the comparison result includes: when the received carbon monoxide content value is lower than the lower limit value of the standard value range, the size of the air inlet is reduced until the detected carbon monoxide content value reaches the standard value range.
Optionally, for the control method, controlling the size of the air intake port according to the comparison result includes: when the received carbon monoxide content value is higher than the upper limit value of the standard value range, the size of the air inlet is increased until the detected carbon monoxide content value reaches the standard value range.
Compared with the prior art, the technical scheme of the invention has the following main advantages:
according to the carbon monoxide detection linkage control system and the control method, the supplementary air inlet is provided with the sliding cover plate and can be adjusted in size in a sliding mode, the sliding cover plate is driven by the rotary electromagnetic valve, the electromagnetic valve is used for driving the sliding cover plate to move in an opening and closing mode, the supplementary air inlet is formed in different sizes, the edge of the synchronous sliding cover plate is provided with the triangular sawtooth structure, turbulence is formed in air circulation, and air mixing capacity is improved. Simultaneously, this mechanism and carbon monoxide detector coordinated control adjust the air input according to the different carbon monoxide content that detects, guarantee that the air that gets into accurately participates in gas co-combustion, improve combustion efficiency, reduce the emission of carbon monoxide and nitride.
The carbon monoxide detection linkage control system and the control method of the embodiment of the invention jointly control the variable air supplementing structure and the carbon monoxide detection instrument, so that whether the air and fuel gas supplementing proportion reaches the optimal mixing state or not is judged by detecting the content of carbon monoxide in different states, the air inflow of air participating in combustion is more accurately adjusted, the proportion of redundant air taking away heat is lower, and the carbon monoxide content is more stably controlled.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1A and fig. 1B are schematic structural diagrams of a co detection linkage control system according to an embodiment of the present invention from different viewing angles;
fig. 2A, 2B and 2C are schematic structural views of the cover plate, the slide rail and the rotation shaft shown in fig. 1A, respectively;
FIG. 3 is a schematic view of the connection of the rotary shaft shown in FIG. 1A to a drive solenoid valve;
fig. 4 is a flowchart of a control method of a carbon monoxide detection linkage control system according to another embodiment of the present invention;
fig. 5A, 5B and 5C are schematic structural diagrams illustrating the air inlet adjusting device of the co detection coordinated control system shown in fig. 1A maintaining the cover open state, reducing the cover open state and increasing the cover open state, respectively.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1A and fig. 1B are schematic structural diagrams of a co detection linkage control system according to an embodiment of the present invention from different viewing angles. As shown in fig. 1A and 1B, a co detection coordinated control system according to an embodiment of the present invention includes an air inlet adjusting device 100, a co detector 200, and a main controller 300. The air inlet conditioning device 100 includes a cover plate 110, a slide rail 120, and a slide driving mechanism, wherein the cover plate 110 slides along the slide rail 120 when driven by the slide driving mechanism. Carbon monoxide detector 200 and the sliding drive mechanism are connected to main controller 300. The carbon monoxide detector 200 transmits a signal to the main controller 300 in real time, and the main controller 300 controls the sliding driving mechanism according to a program.
Fig. 2A, 2B and 2C are respectively schematic structural views of the cover plate, the slide rail and the rotating shaft shown in fig. 1A. Fig. 3 is a schematic view showing the connection of the rotary shaft shown in fig. 1A to the driving solenoid valve. As shown in fig. 2A, 2B and 2C and fig. 3, the sliding driving mechanism may include a rotating shaft 131, a sliding tooth 111 extending parallel to the sliding direction of the cover plate 110 is disposed on the cover plate 110, and a circular gear 133 is sleeved on the rotating shaft 131, and the circular gear 133 can engage with the sliding tooth 111 on the cover plate 110 to drive the cover plate 110 to slide along the sliding rail 120 by the rotation of the rotating shaft 131. The slide driving mechanism may further include a driving solenoid valve 135, the rotation shaft 131 is connected to the driving solenoid valve 135, and the driving solenoid valve 135 is connected to the main controller 300. Further, the rotating shaft 131 is sleeved with the rotating sleeve 137 of the driving solenoid valve 135, and when the driving solenoid valve 135 rotates, the rotating shaft 131 is driven to rotate.
The cover plate 110 may be provided with serrations 113 along the edge at the air inlet.
The cover plate 110 may be provided with a slide shaft 115 at an edge perpendicular to the edge provided with the saw teeth, and the slide rail 120 may include a slide groove 121, and the slide shaft 115 is mounted in the slide groove 121 of the slide rail 120.
When the cover plate 110 needs to be adjusted to open and close, the driving solenoid valve 135 drives the rotating shaft 131 to rotate, the circular gear 133 on the rotating shaft 131 is meshed with the sliding tooth 111 on the cover plate 110, the cover plate 110 is driven to slide, and the sliding shaft 115 on the cover plate 110 is sleeved in the sliding groove 121 of the sliding rail 120, so that the cover plate 110 is linearly opened and closed along the sliding rail 120.
As shown in FIG. 1B, the gas water heater includes a burner assembly 400, a blower 500, and a carbon monoxide detector 200. Wherein, carbon monoxide detector 200 communicates with each other through air duct 600 with fan 500, and carbon monoxide detector 200 detects the carbon monoxide content in the fan 500 exhaust waste gas.
Fig. 4 is a flowchart of a control method of the above-mentioned carbon monoxide detection linkage control system according to another embodiment of the present invention.
As shown in fig. 4, in step S410, the carbon monoxide content value detected by the carbon monoxide detector 200 is received when the gas water heater is operated.
In step S420, the received co content value is compared with a standard value range.
In step S430, the size of the air inlet port is controlled according to the comparison result.
The specific process of step S430 may include: if the received carbon monoxide content value is within the standard value range, the control drives the solenoid valve 135 to stay in the current position to maintain the current air intake port size. If the received carbon monoxide content value is below the lower limit of the standard range, the drive solenoid valve 135 is controlled to rotate in a first direction to decrease the size of the air inlet port until the detected carbon monoxide content value is within the standard range. If the received carbon monoxide content value is higher than the upper limit value of the standard value range, the control drives the solenoid valve 135 to rotate in a second direction opposite to the first direction to increase the size of the air inlet port until the detected carbon monoxide content value reaches within the standard value range.
Fig. 5A, 5B and 5C are schematic structural diagrams illustrating the air inlet adjusting device of the co detection coordinated control system shown in fig. 1A maintaining the cover open state, reducing the cover open state and increasing the cover open state, respectively. As shown in fig. 5A, when the gas water heater is operated, when the carbon monoxide content is detected by the carbon monoxide detector 200 to be within the standard value range, the electromagnetic valve 135 is driven to maintain the cover plate 110 at the default position. As shown in fig. 5B, when the gas water heater is operated, and the carbon monoxide detector 200 detects that the carbon monoxide content is lower than the standard value range, the main controller 300 determines that oxygen-enriched combustion is performed, and if the air supplement is excessive, the main controller controls the driving solenoid valve 135 to rotate in the first direction, so as to reduce the opening distance of the cover plate 110 until the carbon monoxide content reaches the standard value range. As shown in fig. 5C, when the gas water heater is operated, and the carbon monoxide detector 200 detects that the carbon monoxide content is higher than the standard value range, the main controller 300 determines that the oxygen-reduced combustion is performed, and the air supplement is insufficient, and controls the driving solenoid valve 135 to rotate in a second direction opposite to the first direction, so as to increase the opening distance of the cover plate 110 until the carbon monoxide content reaches the standard value range.
According to the carbon monoxide detection linkage control system and the control method, the supplementary air inlet is provided with the sliding cover plate and can be adjusted in size in a sliding mode, the sliding cover plate is driven by the rotary electromagnetic valve, the electromagnetic valve is used for driving the sliding cover plate to move in an opening and closing mode, the supplementary air inlet is formed in different sizes, the edge of the synchronous sliding cover plate is provided with the triangular sawtooth structure, turbulence is formed in air circulation, and air mixing capacity is improved. Simultaneously, this mechanism and carbon monoxide detector coordinated control adjust the air input according to the different carbon monoxide content that detects, guarantee that the air that gets into accurately participates in gas co-combustion, improve combustion efficiency, reduce the emission of carbon monoxide and nitride.
The carbon monoxide detection linkage control system and the control method of the embodiment of the invention jointly control the variable air supplementing structure and the carbon monoxide detection instrument, so that whether the air and fuel gas supplementing proportion reaches the optimal mixing state or not is judged by detecting the content of carbon monoxide in different states, the air inflow of air participating in combustion is more accurately adjusted, the proportion of redundant air taking away heat is lower, and the carbon monoxide content is more stably controlled.
Compared with the existing non-variable supplementary air inlet, the supplementary air is only mixed with the supplementary air discharged by the ignited fire, so that on the premise of ensuring the effective mixing of air and fuel gas, the heat of the fuel gas is prevented from being taken away by redundant cold air, the combustion state can be controlled more stably, and the generation of carbon monoxide and nitride is controlled, thereby being safe, energy-saving and environment-friendly.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the claims, and all equivalent structures or equivalent processes that are transformed by the content of the specification and the drawings, or directly or indirectly applied to other related technical fields are included in the scope of the claims.
Claims (10)
1. A carbon monoxide detection linkage control system is characterized by comprising an air inlet adjusting device, a carbon monoxide detector and a main controller, wherein,
the air inlet adjusting device comprises a cover plate, a slide rail and a slide driving mechanism, wherein the cover plate slides along the slide rail under the driving action of the slide driving mechanism;
the carbon monoxide detector and the sliding driving mechanism are connected with the main controller.
2. The carbon monoxide detection linkage control system as claimed in claim 1, wherein the sliding driving mechanism comprises a rotating shaft, the cover plate is provided with a sliding tooth extending parallel to the sliding direction of the rotating shaft, the rotating shaft is sleeved with a circular gear, and the circular gear can be engaged with the sliding tooth on the cover plate to drive the cover plate to slide along the sliding rail through the rotation of the rotating shaft.
3. The carbon monoxide detection coordinated control system of claim 2, wherein the sliding driving mechanism further comprises a driving solenoid valve, the rotating shaft is connected with the driving solenoid valve, and the driving solenoid valve is connected with the master controller.
4. The carbon monoxide detection coordinated control system as recited in claim 3, wherein the rotary shaft is sleeved with a rotary sleeve on the driving solenoid valve, and when the driving solenoid valve works and rotates, the rotary shaft is driven to rotate.
5. The co-detection coordinated control system as set forth in claim 1, wherein the edge of the cover plate at the air inlet is provided with serrations arranged along the edge.
6. The carbon monoxide detection linkage control system as claimed in claim 5, wherein a sliding shaft is provided on the edge of the cover plate perpendicular to the edge provided with the saw teeth, the sliding rail comprises a sliding groove, and the sliding shaft is mounted in the sliding groove of the sliding rail.
7. A control method of a carbon monoxide detection linkage control system according to any one of claims 1 to 6, comprising:
when the gas water heater works, receiving the carbon monoxide content value detected by the carbon monoxide detector;
comparing the received carbon monoxide content value with a standard value range;
the size of the air inlet is controlled according to the comparison result.
8. The control method of claim 7, wherein controlling the size of the air intake port based on the comparison comprises:
the current size of the air intake port is maintained when the received carbon monoxide content value is within a standard range.
9. The control method of claim 7, wherein controlling the size of the air intake port based on the comparison comprises:
when the received carbon monoxide content value is lower than the lower limit value of the standard value range, the size of the air inlet is reduced until the detected carbon monoxide content value reaches the standard value range.
10. The control method of any one of claims 7-9, wherein controlling the size of the air intake port based on the comparison comprises:
when the received carbon monoxide content value is higher than the upper limit value of the standard value range, the size of the air inlet is increased until the detected carbon monoxide content value reaches the standard value range.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910961583.7A CN110762849A (en) | 2019-10-11 | 2019-10-11 | Carbon monoxide detection linkage control system and control method |
| PCT/CN2020/114302 WO2021068702A1 (en) | 2019-10-11 | 2020-09-10 | Carbon monoxide detection linkage control system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910961583.7A CN110762849A (en) | 2019-10-11 | 2019-10-11 | Carbon monoxide detection linkage control system and control method |
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| CN110762849A true CN110762849A (en) | 2020-02-07 |
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| CN201910961583.7A Pending CN110762849A (en) | 2019-10-11 | 2019-10-11 | Carbon monoxide detection linkage control system and control method |
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| CN (1) | CN110762849A (en) |
| WO (1) | WO2021068702A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068702A1 (en) * | 2019-10-11 | 2021-04-15 | 珠海格力电器股份有限公司 | Carbon monoxide detection linkage control system and control method |
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| WO2021068702A1 (en) | 2021-04-15 |
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Application publication date: 20200207 |
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