CN201779641U - Intelligent full-automatic boiler energy-saving control equipment - Google Patents
Intelligent full-automatic boiler energy-saving control equipment Download PDFInfo
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- CN201779641U CN201779641U CN2010201056707U CN201020105670U CN201779641U CN 201779641 U CN201779641 U CN 201779641U CN 2010201056707 U CN2010201056707 U CN 2010201056707U CN 201020105670 U CN201020105670 U CN 201020105670U CN 201779641 U CN201779641 U CN 201779641U
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Abstract
The utility model provides intelligent full-automatic boiler energy-saving control equipment which has the advantages of controllable smoke exhaust temperature, controllable and adjustable working medium temperature after waste heat recovery, calculable discharge value and effective prevention of low-temperature corrosion. The equipment comprises a smoke ingredient analyzer, a heat exchanger, a boiler barrel, a flowmeter, a frequency conversion circulating pump, electrical regulating valves, a sensor, a main controller and a computer workstation. In the utility model, a working medium with a temperature T0 enters from a system inlet, after the working medium comes out of the boiler barrel, the temperature is changed into T1, and then the working medium enters the heat exchanger in a smoke pipeline through the frequency conversion circulating pump; a smoke inlet is provided with the smoke analyzer; the temperature T1 is jointly regulated by M1 and M3 to ensure that the T1 is stabilized at a set value; the temperature of the smoke after reaching an outlet through the heat exchanger is changed into T4; the temperature of the working medium at the outlet of the heat exchanger is changed into T2, and the working medium respectively enters the boiler barrel and the system outlet; the temperature of the working medium passing through the electrical regulating valve M3 is changed into T3; and T3 can be regulated by M2 so as to meet different requirements of clients.
Description
Technical field
The utility model relates to a kind of Industrial Boiler low-temperature waste heat reclaimer, especially a kind of intelligent full-automatic boiler energy-saving control apparatus.
Background technology
Have middle-size and small-size fuel oil, combustion gas and the coal-burned industrial boiler of One's name is legion in the city, be used in public places such as business office building, hotel, hospital.The common single-machine capacity of this class boiler is little, and exhaust gas temperature is higher, and heat loss due to exhaust gas is big, and boiler efficiency is low.But operating cost proportion is little, does not cause boiler holder's care, because of the custom thinking of market economy, does not also cause the attention of government administration section again, or does not propose clear and definite energy-conservation requirement.
Compare abroad, industrial boilers in China exists fuel composition to change greatly, the general phenomenon on the low side of service efficiency.Therefore, the energy-saving potential of Industrial Boiler is very big.If numerous Industrial Boilers is taked effective conservation measures more, even make boiler efficiency improve three to five percentage points on existing basis, the energy-conservation value of the Industrial Boiler in a city is very considerable.This is energy-conservation, the GHG emissions mitigation of response government, the effective practical action that the protection environment is called.Middle-size and small-size Industrial Boiler occupies very big proportion in the urban industry boiler.
The exhaust gas temperature of common middle-size and small-size Industrial Boiler is higher, and particularly fuel oil, gas fired-boiler exhaust gas temperature can reach about about 200 ℃, and exhaust gas temperature is dropped to below 130 ℃, can save the energy and can improve five percentage points of boiler efficiencies.But exhaust gas temperature is dropped to this temperature levels, also should avoid consequential cold end corrosion.
Summary of the invention
The purpose of this utility model be to provide that a kind of exhaust gas temperature is controlled, the working medium Controllable Temperature after the Waste Heat Recovery is adjustable, discharge capacity can be calculated, effectively prevent the intelligent full-automatic boiler energy-saving control apparatus of cold end corrosion.
The utility model is achieved in that intelligent full-automatic boiler energy-saving control apparatus, it is characterized in that comprising exhaust gas components analyzer, heat exchanger, drum, flowmeter, frequency conversion circulating pump, electric control valve and sensor, master controller and computer work.
Its control principle is:
(1). in flue, install the fume component analysis instrument additional, every data that master controller records in real time according to the fume component analysis instrument, calculate the setting value of real-time flue gas acid dew point temperature and definite T1 (being heat exchanger import working medium temperature), working medium is generally water, and the temperature requirement of T1 is set greater than acid dew-point temperature here.When described acid dew point is meant the sulphur-containing substance burning, can partly generate sulfur trioxide, sulfur trioxide and water form sulfuric acid, and under than the high temperature of normal dew point, sulfuric acid is in a liquid state and separates out, and temperature at this moment claims acid dew point.The strong corrosion of heat-transfer area or metal covering suffered sulfuric acid under this temperature claims cold end corrosion or acid dew piont corrosion.In the utility model, when the fuel composition of boiler changes, but the composition of automatic diagnosis flue gas determining the real-time acid dew-point temperature of flue gas, thereby adjust the setting value of T1 automatically, avoid cold end corrosion.Register is set in the drum, integrates functions such as temperature adjustment, accumulation of heat, retaining, when boiler load changed, T1 (the working medium temperature of heat exchanger inlets) remained unchanged.
(2) .T1 is regulated jointly by M1 and M3, makes T1 be stabilized in setting value.Described M1 and M3 are electric control valve.
(3). if exhaust gas temperature T4 is greater than setting value, and the frequency of then heightening the frequency conversion circulating pump makes T4 be stabilized in setting value to increase discharge.Otherwise then turn down the frequency of frequency conversion circulating pump, reduce discharge and make T4 be stabilized in setting value.
(4). under the prerequisite of T3 (system outlet working medium temperature) smaller or equal to T2, the setting value of T 3 can be set according to user's requirement.T3 is adjusted to setting value by M2 (electric control valve).When T3 greater than when setting value, the aperture that increases M2 makes T3 be stabilized in setting value.When T3 less than when setting value, then reduce the aperture of M2.
(5). adopt the utility model, the user can directly obtain actual amount of energy saving in computer work.(for example: actual economize on coal, the CER of fuel-economizing, solar term and carbon dioxide) adopts the utility model, into and out of the working medium temperature of the heat exchanger temperature that all do not reach capacity, fouling and clogging phenomenon can not occur after the use.
In sum, flow process of the present utility model is: system's import working medium enters, and its temperature is T0, and its flow is controlled by electric control valve M1.Import working medium enters in the drum, coming out afterwards from drum, its variations in temperature is T1 (a heat exchanger inlets working medium temperature), enter heat exchanger in the flue by the frequency conversion circulating pump, described heat exchanger adopts the helix fin tubular type, compact conformation, it is little to take up space, and is fit to very much the narrow and small user's of most of medium small boiler back-end ductwork installing spaces demand; Gas approach is provided with flue gas analyzer, calculating the acid dew point of different flue gases, and sends instruction to M1 and M3; T1 is regulated jointly by M1 and M3, makes T1 be stabilized in setting value (this sets value greater than acid dew point); Flue gas becomes T4 (being exhaust gas temperature) to the temperature of outlet behind over-heat-exchanger.The heat exchanger outlet working medium temperature of coming out from heat exchanger becomes T2, and enters drum and system outlet respectively.By the working medium of system outlet, through electric control valve M3, temperature becomes T3 (system outlet working medium temperature), and described T 3 can be regulated by M2, to satisfy the different needs of client.Above temperature controlling is to be based upon on the basis of sensor thermometric.All above processes, and the action of each parts are carried out automated intelligent control by master controller and computer work, to realize whole flow process unmanned.
So the utility model is that a kind of exhaust gas temperature is controlled, the working medium Controllable Temperature after the Waste Heat Recovery is adjustable, discharge capacity can be calculated, effectively prevent the intelligent full-automatic boiler energy-saving control apparatus of cold end corrosion.
Description of drawings
Fig. 1 is the workflow block diagram of the utility model embodiment;
Among the figure: 1 exhaust gas components analyzer, 2 heat exchangers, 3 drums, 4 flowmeters, 5 frequency conversion circulating pumps, 6,7,8 electric control valves, 9,10,11,12 conduit temperature sensors, 13 flue temperature sensors, 14 master controllers, 15 computer works.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.
In Fig. 1, the utility model comprises exhaust gas components analyzer 1, heat exchanger 2, drum 3, flowmeter 4, frequency conversion circulating pump 5, electric control valve 6-8 and sensor 9-13, master controller 14 and computer work 15.System's import working medium enters, and its temperature is T 0, and its flow is controlled by electric control valve M1.Import working medium enters in the drum 3, coming out afterwards from drum 3, its variations in temperature is T1, enter heat exchanger 2 in the flue by frequency conversion circulating pump 5, described heat exchanger adopts the helix fin tubular type, compact conformation, it is little to take up space, and is fit to very much the narrow and small user's of most of medium small boiler back-end ductwork installing spaces demand; Gas approach is provided with exhaust gas components analyzer 1, calculating the acid dew point of different flue gases, and sends instruction to M1 and M3; T1 is regulated jointly by M1 and M3, makes T1 be stabilized in setting value (this sets value greater than acid dew point); Flue gas becomes T4 to the temperature of outlet behind over-heat-exchanger 2.The heat exchanger outlet working medium temperature of coming out from heat exchanger 2 becomes T2, and enters drum 3 and system outlet respectively.By the working medium of system outlet, through electric control valve M3, temperature becomes T3, and described T3 can be regulated by M2, to satisfy the different temperature needs of client.Above temperature controlling is to be based upon on the basis of sensor 9-13 thermometric, conduit temperature sensor 9-12 that described sensor comprises and flue temperature sensor 13.All above processes, and the action of each parts are carried out automated intelligent control by master controller 14 and computer work 15, to realize whole flow process unmanned.
Claims (2)
1. intelligent full-automatic boiler energy-saving control apparatus is characterized in that comprising tube connector, and tube connector is connected drum, frequency conversion circulating pump and helix fin pipe in pipe successively; Working medium is arranged in the tube connector; The import of described drum is provided with sensor and electric control valve, and the outlet of drum links to each other with electric control valve, sensor and flowmeter; Described helix fin pipe in pipe links to each other with flue again, and the inlet of flue is provided with the exhaust gas components analyzer; The frequency conversion circulating pump is connected with computer work with master controller with electric control valve.
2. intelligent full-automatic boiler energy-saving control apparatus as claimed in claim 1 is characterized in that being provided with register in the described drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201056707U CN201779641U (en) | 2010-02-01 | 2010-02-01 | Intelligent full-automatic boiler energy-saving control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201056707U CN201779641U (en) | 2010-02-01 | 2010-02-01 | Intelligent full-automatic boiler energy-saving control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779641U true CN201779641U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201056707U Expired - Fee Related CN201779641U (en) | 2010-02-01 | 2010-02-01 | Intelligent full-automatic boiler energy-saving control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779641U (en) |
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2010
- 2010-02-01 CN CN2010201056707U patent/CN201779641U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20170201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |