CN104566995A - Emission reduction data acquiring unit of gas water heater - Google Patents
Emission reduction data acquiring unit of gas water heater Download PDFInfo
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- CN104566995A CN104566995A CN201410720846.2A CN201410720846A CN104566995A CN 104566995 A CN104566995 A CN 104566995A CN 201410720846 A CN201410720846 A CN 201410720846A CN 104566995 A CN104566995 A CN 104566995A
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Abstract
The invention provides an emission reduction data acquiring unit of a gas water heater for remotely, safely and accurately monitoring the carbon dioxide emission state of the gas water heater. The emission reduction data acquiring unit comprises a test end and a monitoring end, and is characterized in that the test end comprises a gas source interface, an air inlet interface, a water inlet, an anti-explosion safe protecting cover, a sensor unit, a signal acquiring module unit, a loudspeaker and a data transmission module; the monitoring end comprises a micro controller, a displayer, an alarm device unit, a data transmission module, a storage and a timer; the monitoring end regularly sends an acquisition command to the data transmission module through the timer; the test end does communication with the monitoring end in a wireless way; the anti-explosion safe protecting cover covers the to-be-monitored gas water heater. The acquiring unit is high in university, low in cost and high in expandability.
Description
Technical field
The present invention relates to energy-saving and emission-reduction long-distance monitorng device, especially relate to a kind of reduction of discharging data acquisition unit of gas heater.
Background technology
In China, energy-saving and emission-reduction have become an important state basic policy.The combusts fossil energy is the principal element causing carbon dioxide sharply to increase.In fossil energy, coal phosphorus content is the highest, and oil takes second place, and natural gas is minimum.Progressively replace coal to improve atmospheric environment with natural gas, reduce the content of atmospheric greenhouse gas, the content of the pollutants such as the dust in minimizing air and sulfur dioxide.At present, coal in China generated energy accounts for 3/4ths of national gross generation, and in a foreseeable future, coal generating will occupy the dominance status of China's supply of electric power.But along with the fast development of China's economic, the dust that coal burning brings, hazardous emission and carbon emission, cause comparatively serious pollution to air.In recent years, natural gas obtains increasing application in heat supply, generating, and gas utilization efficiency is high, and CO2, SO2, NOx and the flue dust of burning and exhausting are less, can play a significant role in energy-saving and emission-reduction process; The natural gas of a cubic meter, compared with corresponding alternative coal, can save energy 11% ~ 73%, reducing emission of carbon dioxide 47% ~ 84%, nitrogen oxide 44% ~ 95%, sulfur dioxide and flue dust nearly 100%.
Natural gas is a kind of energy of high-quality, has the advantages such as efficient, low stain, low emission.All obviously reduce relative to the discharge capacity of the polluters such as coal, dust, sulfur dioxide, nitride and carbon monoxide.Therefore, be widely used in all many-sides such as the internal combustion engine of the industries such as traffic, metallurgy, electric power, light industry, automobile, steel-making, heat treatment, printing and dyeing, weaving, a large amount of supply resident is as life fuel simultaneously.
Natural gas not still a kind of fuel efficiently is also very important industrial chemicals.Compared with other solid-liquids, industrial chemicals, it has the advantages such as moisture, ashes, sulfide are few.Therefore, natural gas can make production cost reduce as industrial chemicals, raises labour productivity.The application of natural gas in chemical industry is extremely extensive, can produce nearly thousand kinds of chemical products, and the natural gasification chemical product of large-scale production both at home and abroad at present has tens of kinds, and wherein some intermediate products, mainly contains synthetic ammonia, methyl alcohol etc.Data show, and the synthetic ammonia of 84% and the methyl alcohol of 90% are prepared from by natural gas in the world.But from world wide, since the nineties in last century, natural gas is more is applied to resident's fuel and the generating energy, but not industrial chemicals.Current, the natural gas being used to industrial chemicals can not apply 10% of total amount completely.But consider, the coal reserves of China is very abundant, so adopt natural gas to be still the controversial problem of very tool as main fuel.The suggestion opposed can be divided into two classes substantially: one is that natural gas answers priority application in chemical industry as a kind of important industrial chemicals, and should as fuel; Two is by adopting clean coal technology effectively can reduce the coal-fired problem of environmental pollution brought.
Gas heater is kitchen guarding's electrical equipment of society a lot of families indispensability, be also some factories and miness carry out industrial production use hot water time necessary equipment.But the index of more existing gas heaters is also below standard, and quality is uneven, because the factors such as insufficient, the Flue duct design of burning cause having the hidden danger not meeting modern energy conservation and emission reduction and require.
Summary of the invention
In order to overcome the deficiency of above-mentioned background technology, the present invention proposes a kind of reduction of discharging data acquisition unit of gas heater, realize in test environment to the CO2 emission situation of gas heater long-range, safe, monitor accurately.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of reduction of discharging data acquisition unit of gas heater, comprise test lead and monitoring client, it is characterized in that, described test lead comprises: gas source interface, air inlet interface, water inlet, anti-explosion safety guard shield, sensor group, signal acquisition module group, loudspeaker, and data transmission module, described monitoring client comprises microcontroller, display, alarm group, data transmission module, memory and timer, described monitoring client is by the data transmission module transmission acquisition instructions of timer timing to test lead, and described test lead and monitoring client wirelessly carry out communication, described explosion-proof guard shield covers described gas heater to be monitored.
Further, described sensor group comprise be arranged on gas heater exhaust outlet temperature sensor, carbon dioxide indicator, oxygen sensor, gas pressure sensor, be arranged on temperature sensor in gas heater exhaust passage and baroceptor, and be arranged on the temperature sensor of water inlet.
Further, described signal acquisition module group comprises for the I/V translation circuit of the conversion sensor output signal of telecommunication, for removing the filter circuit of interfering signal and the linear optical coupling buffer circuit for isolating amplification collection signal.
Further, described memory comprises SD card interface circuit and the SD card for storing gas heater monitor data.
Further, described data transmission module comprises A/D converter and 485 communication interfaces.
Further, described alarm group comprises LED display circuit and sound light alarming circuit.
Further, described timer comprises crystal oscillating circuit, reset circuit and for providing the real time clock circuit of time marking.
Further, the signal transmission module of described test lead and the signal transmission module of monitoring client carry out wireless telecommunications by the mode of digital communication.
Further, the structure of described carbon dioxide indicator is a kind of rectangular carbon dioxide inspecting containers, and have 4 mouths, there is inlet below, and there is liquid outlet top, and there is air inlet below, and there is gas outlet top; The discharging tube of the external acetylene generator of inlet, inside connects shower, and what the external acetylene of air inlet pushed away oily device waste air goes out air door, gas outlet externally connected exhaust pipe, the external liquid receiver of liquid outlet; In spray chamber, near bottom, horizontal positioned screen cloth, for intercepting and capturing solid product.
The beneficial effect that the present invention has is:
1. there is very strong versatility, be suitable for gas heater that is all types of, various brands, no matter whether gas heater master controller opens communications protocol, all reliably can collect the operational factor needed for gas heater safety and energy-saving monitoring, and be sent to remote monitoring end.
2. have fine economy, having abandoned measure field often needs to make watch-dog possess the conventional thought of processor or control unit, and cost is low, and cost performance is high, is more conducive to marketing application.
3. communication unit adopts extendible design architecture.When the reduction of discharging of the gas heater in the face of various dissimilar and purposes is measured, new environment and new demand can be met flexibly and rapidly, and not need the circuit board changing measurement device.
4. have superior performance, the signal acquisition module group of band light-coupled isolation ensure that security of system, and the fault that jumbo SD storage card is gas heater and accident investigation provide reliable data supporting.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the reduction of discharging data acquisition unit of gas heater of the present invention;
Fig. 2 shows the structural representation of the carbon dioxide indicator of the reduction of discharging data acquisition unit of gas heater.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the reduction of discharging data acquisition unit of gas heater, comprise test lead and monitoring client, it is characterized in that, described test lead comprises: gas source interface, air inlet interface, water inlet, anti-explosion safety guard shield, sensor group, signal acquisition module group, loudspeaker, and data transmission module, described monitoring client comprises microcontroller, display, alarm group, data transmission module, memory and timer, described monitoring client is by the data transmission module transmission acquisition instructions of timer timing to test lead, and described test lead and monitoring client wirelessly carry out communication, described explosion-proof guard shield covers described gas heater to be monitored.
According to a preferred embodiment of the invention, described explosion-proof guard shield covers described gas heater to be monitored, and has following aperture thereon: gas source interface, air inlet interface, water inlet, loudspeaker sound mouth, data line between signal acquisition module group and sensor group need through aperture.Described gas source interface is for receiving natural gas and making it to enter gas heater to be monitored; Described air inlet is used for providing oxygen for the combustion chamber of described gas heater; Described water inlet is used for providing water source for gas heater to be monitored.
According to one embodiment of present invention, above-mentioned gas source interface, air inlet interface, water inlet, loudspeaker sound mouth, data line between signal acquisition module group and sensor group need through aperture in one or more can concentrating be formed as two: water lines and fulgurite road: wherein, water lines comprises into the pipeline needed for water and water outlet and pipeline through required aperture during this guard shield and pipeline; Fulgurite road comprises the holding wire of sensor group and signal acquisition module group and electric wire through required aperture during described guard shield and pipeline.
Described sensor group comprise be arranged on gas heater exhaust outlet temperature sensor, carbon dioxide indicator, oxygen sensor, gas pressure sensor, be arranged on temperature sensor in gas heater exhaust passage and baroceptor, and be arranged on the temperature sensor of water inlet.
As shown in Figure 2, the structure of described carbon dioxide indicator is a rectangle spray chamber.Carbon dioxide indicator has the mouth of 4 traverses, and there is inlet 71 top, and there is liquid outlet 72 below, and side has air inlet 73 opposite side to have gas outlet 74; The discharging tube of the external acetylene generator of inlet, inside connects shower 75, and what the external acetylene of air inlet pushed away oily device waste air goes out air door, gas outlet externally connected exhaust pipe, the external liquid receiver of liquid outlet; In spray chamber, near bottom, horizontal positioned screen cloth 76, for intercepting and capturing solid product.The effect of spray chamber is: utilize in acetylene generator, and calcium carbide and water react the aqua calcis generated, and spray in the offgas, absorbs the carbon dioxide in waste gas.
The aqua calcis that acetylene generator flows out, sprays downwards from the shower 75 of spray chamber.Acetylene pushes away the waste gas that oily device is discharged, and blows over from spray chamber level.Carbon dioxide in calcium hydroxide and waste gas produces chemical reaction, and the calcium carbonate of generation has been stayed on the screen cloth of spray chamber, and harmless waste gas is discharged into air by exhaust outlet 74.
Industry calcium carbide contains 70% calcium carbide, and all the other impurity are metal oxides, mainly calcium oxide.In theory, calcium carbide and water react the alkaline fluids generated, and can absorb the carbon dioxide of the acetylene combustion generation that same reaction generates completely.Product after calcium hydroxide alkaline fluids absorbing carbon dioxide is calcium carbonate and the solubility calcium bicarbonate of solid.Illustrate: 100 industrial calcium carbide molecules, containing 70 calcium carbide molecule GaG2,30 calcium oxide molecule CaO, these two kinds of molecules are altogether containing 100 calcium atom Ca, and 140 carbon atom C.Calcium carbide and water react and generate calcium hydroxide alkaline fluids, and after alkaline fluids and carbon dioxide reaction, a part generates solid-state calcium carbonate CaCO3, and a calcium atom captures a carbon atom; Another part generates solubility calcium bicarbonate Ca (HCO3) 2, calcium atom and captures two carbon atoms.Finally, substantially, 100 calcium atoms can with 140 carbon atom complete reactions, namely calcium hydroxide alkaline fluids absorbs carbon dioxide completely.
The microcontroller of monitoring client adopts high-performance, low-power consumption, has 8 AVR embedded scm ATmega128L-16AU of advanced RISC framework, and its inside possesses 128K Flash, 4K EEPROM, 4K SRAM, 10,8 tunnel ADC, 53 programmable I/O mouths, 2 serial USART able to programme, 1 road SPI serial line interface, maximum operating frequencies can reach 16MHz.
The input of signal acquisition module group is connected with sensor group, and this module comprises: based on sampling resistor for conversion sensor export the signal of telecommunication I/V translation circuit, for remove interfering signal filter circuit and based on op07 and HCNR201 chip for isolating and amplifying the linear optical coupling buffer circuit of collection signal.The output of this module directly accesses the ADC interface of microcontroller.
Memory comprises SD card interface circuit and the SD card for storing gas heater monitor data.Gas heater state parameter after calculation process, by SPI interface and SD deck and SD cartoon letters, is stored in SD card in the mode of file by microcontroller.Jumbo SD card guarantees to store the gas heater real-time status parameter in nearest 12 hours, for emergency or accident provide real data evidence.
Data transmission module comprises A/D converter and 485 communication interfaces.Wherein, the signal that temperature sensor and gas pressure sensor export is data signal, and the amount that other detecting units in sensor group export is analog signal.These analog signals become data signal after A/D conversion, are transferred to signal acquisition module group by 485 communication interfaces.
Signal acquisition module group adopts MAX485 chip to form two-way RS485 communication interface by the USART interface of microcontroller, wherein a road is used for interconnection network transmitting device, by the gas heater running state parameter access Internet collected, deliver to remote monitoring and administration center, the selection of network transmission device is determined according to the network condition in gas heater room, RS485 can be adopted to turn Eternet or RS485 and turn GPRS bi-directional data transparent transmission device; Another road RS485 communication interface is used for communicating with gas heater master controller, when the open master controller communications protocol of gas heater manufactory, directly extract operational factor from gas heater master controller, collection and the partial simulation signal transducer of switching signal can be saved according to the parameter kind of extracting directly in the case and gather accordingly.
Test lead and monitoring client wirelessly carry out communication.According to a preferred embodiment of the invention, test lead and monitoring client data transmission module is separately under the sequential or clock control of the microprocessor of monitoring client, whether the corresponding port regularly inquiring about the test lead data transmission module be connected with each detecting unit in sensor group respectively has data: if there are data, read in the data transmission module of test lead, and be wirelessly transferred to the data transmission module of monitoring client by modes such as 3G/4G/GSM/GPRS.
The generation of above-mentioned sequential or clock relies on the timer of test lead to realize.Timer comprises crystal oscillating circuit, reset circuit and for providing the real time clock circuit of time marking.Under adopting the external crystal oscillator of 16MHZ to make microcontroller work in the 16MIPS of peak performance.DS1302 chip and reserve battery is adopted to form real time clock circuit, for the gas heater monitoring parameter stored on the spot provides time marking.
Alarm group comprises LED display circuit and sound light alarming circuit.LED display circuit is for showing the duty of each sensor, the acquisition state of switching signal, the insert state of SD card and reading state, the communication state of RS485 interface and the duty of system power supply.Sound light alarming circuit is used for providing alarm signal when monitoring parameter exceeds standard to on-the-spot stoker personnel, adopts alarm lamp in conjunction with the mode of buzzer.
According to one embodiment of present invention, above-mentioned alarm group can comprise a sound and light alarm device (such as, loudspeaker).After each signal that the power supply of this device is exported by sensor group compares with threshold voltage or electric current respectively, then to carry out or computing obtains.
According to still another embodiment of the invention, above-mentioned alarm group can comprise multiple identical or different sound and light alarm device, exceedes the signal of predetermined voltage or electric current with each in respective sensor group respectively.Thus make the staff at test lead scene can know which signal rapidly and accurately to have occurred that fault has appearred in which detecting unit in problem or sensor group.
Above-mentioned detailed description of the invention is used for explaining and the present invention is described, instead of limits the invention, and in the protection domain of spirit of the present invention and claim, any amendment make the present invention and change, all fall into protection scope of the present invention.
Claims (9)
1. the reduction of discharging data acquisition unit of a gas heater, comprise test lead and monitoring client, it is characterized in that, described test lead comprises: gas source interface, air inlet interface, water inlet, anti-explosion safety guard shield, sensor group, signal acquisition module group, loudspeaker, and data transmission module, described monitoring client comprises microcontroller, display, alarm group, data transmission module, memory and timer, described monitoring client is by the data transmission module transmission acquisition instructions of timer timing to test lead, and described test lead and monitoring client wirelessly carry out communication, described explosion-proof guard shield covers described gas heater to be monitored.
2. the reduction of discharging data acquisition unit of gas heater according to claim 1, it is characterized in that: described sensor group comprise be arranged on gas heater exhaust outlet temperature sensor, carbon dioxide indicator, oxygen sensor, gas pressure sensor, be arranged on temperature sensor in gas heater exhaust passage and baroceptor, and be arranged on the temperature sensor of water inlet.
3. the reduction of discharging data acquisition unit of gas heater according to claim 1, it is characterized in that: the structure of described carbon dioxide indicator is a kind of rectangular carbon dioxide inspecting containers, there are 4 mouths, there is inlet below, there is liquid outlet top, there is air inlet below, and there is gas outlet top; The discharging tube of the external acetylene generator of inlet, inside connects shower, and what the external acetylene of air inlet pushed away oily device waste air goes out air door, gas outlet externally connected exhaust pipe, the external liquid receiver of liquid outlet; In spray chamber, near bottom, horizontal positioned screen cloth, for intercepting and capturing solid product.
4. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: described signal acquisition module group comprises for the I/V translation circuit of the conversion sensor output signal of telecommunication, for removing the filter circuit of interfering signal and the linear optical coupling buffer circuit for isolating amplification collection signal.
5. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: described memory comprises SD card interface circuit and the SD card for storing gas heater monitor data.
6. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: described data transmission module comprises A/D converter and 485 communication interfaces.
7. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: described alarm group comprises LED display circuit and sound light alarming circuit.
8. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: described timer comprises crystal oscillating circuit, reset circuit and for providing the real time clock circuit of time marking.
9. the reduction of discharging data acquisition unit of gas heater according to claim 1, is characterized in that: the signal transmission module of described test lead and the signal transmission module of monitoring client carry out wireless telecommunications by the mode of digital communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410720846.2A CN104566995A (en) | 2014-12-02 | 2014-12-02 | Emission reduction data acquiring unit of gas water heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410720846.2A CN104566995A (en) | 2014-12-02 | 2014-12-02 | Emission reduction data acquiring unit of gas water heater |
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| CN104566995A true CN104566995A (en) | 2015-04-29 |
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| CN201410720846.2A Pending CN104566995A (en) | 2014-12-02 | 2014-12-02 | Emission reduction data acquiring unit of gas water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990478A (en) * | 2017-12-29 | 2019-07-09 | 芜湖美的厨卫电器制造有限公司 | The conversion method of gas heater and its parameter codes, device |
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2014
- 2014-12-02 CN CN201410720846.2A patent/CN104566995A/en active Pending
Patent Citations (7)
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| US6087924A (en) * | 1996-04-18 | 2000-07-11 | Mikuni Corporation | Gas sensors and methods of manufacturing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109990478A (en) * | 2017-12-29 | 2019-07-09 | 芜湖美的厨卫电器制造有限公司 | The conversion method of gas heater and its parameter codes, device |
| CN109990478B (en) * | 2017-12-29 | 2020-06-30 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and method and device for converting parameter codes thereof |
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