CN105435965A - Electric dedusting dust bucket self-control constant-temperature electric heater and control method thereof - Google Patents
Electric dedusting dust bucket self-control constant-temperature electric heater and control method thereof Download PDFInfo
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- CN105435965A CN105435965A CN201510637446.XA CN201510637446A CN105435965A CN 105435965 A CN105435965 A CN 105435965A CN 201510637446 A CN201510637446 A CN 201510637446A CN 105435965 A CN105435965 A CN 105435965A
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Abstract
The invention relates to the technical field of devices for dedusting equipment, in particular to an electric dedusting dust bucket self-control constant-temperature electric heater and a control method thereof. The electric dedusting dust bucket self-control constant-temperature electric heater comprises a cooling fin, a heating material and power source wires. The heating material is arranged in the cooling fin. The heating material is connected with the power source wires. A space between the heating material and the cooling fin is filled with an insulating material. The purpose of automatic constant temperature through self control can be achieved, and under the circumstance, power dissipation is only used for maintaining the temperature of the dust bucket wall, and thus the energy-saving effect is quite obvious.
Description
Technical field
The present invention relates to cleaner device technique field, be specifically related to a kind of electric precipitation ash bucket self-control thermostatic electric heater and control method thereof.
Background technology
PID is adopted to control note panel type electric heater or ring-like electric heating tube for power plant's electric precipitation ash bucket electric heating equipment.Its basic functional principle is that in-built electrical heated filament carries out electrified regulation.Measure temperature in ash bucket by PT100 thermal resistance, carry out PID adjustment.Under temperature in ash bucket is lower than design temperature in limited time, controlled silicon conducting in switch board, heater heats; When temperature in ash bucket is prescribed a time limit higher than on design temperature, in switch board, controllable silicon disconnects, and heater stops heating, maintains the temperature range work of ash bucket temperature in setting with this.Adopt PID closed-loop control to carry out temperature adjustment when full ash bucket ash position is run, when the measuring position of ash bucket ash position lower than PT100 thermal resistance, the temperature that thermal resistance is measured is not ash temperature, but the chamber temperature of ash bucket, i.e. the temperature of air in ash bucket.When the temperature upper limit that the temperature of air in ash bucket is arranged lower than PID adjustment, heater is electrified regulation all the time, and heating energy taken away by the flue gas of electric precipitation, make heater all the time electrified regulation can not disconnect, do not reach PID closed-loop control meaning, waste energy greatly.Old-fashioned plate electric heater is installed and is adopted two ends to be fixed by bolts on ash bucket, and yielding, sky is stuck up in centre, make heat become heat radiation mode from contacting conduction pattern, efficiency is low, wastes energy, electric-heating-wire-heating shortcoming mainly heat conversion is low, and frequent start-stop, easily damage.
Summary of the invention
The object of the invention is to solve the problem, a kind of electric precipitation ash bucket self-control thermostatic electric heater and control method thereof are provided, can solve the problem.
The present invention's adopted technical scheme that solves the problem is:
A kind of electric precipitation ash bucket self-control thermostatic electric heater, comprise fin, exothermic material and power lead, in fin, arrange exothermic material, described exothermic material connects power lead, fill insulant between described exothermic material and fin.
Preferably, described exothermic material is made up of ptc material.
Preferably, described insulating materials is magnesia powder or outsourcing insulating paper.
Preferably, described fin is square.
A kind of control method of electric precipitation ash bucket self-control thermostatic electric heater, described exothermic material is controlled by Open loop temperature, and when to exothermic material heat temperature raising, the resistivity being in the exothermic material of cold conditions is very low, the electric current passed through is comparatively large, exothermic material rapid temperature increases; When temperature reaches exothermic material setting themselves temperature, exothermic material resistivity sharply increases, and electric current drops to stationary value, reaches the automatic constant-temperature object that " oneself " controls.
Preferably, the temperature coefficient of exothermic material is the relative change of the resistance that variations in temperature causes, and represents with temperature coefficient α,
α=(lgR2-lgR1)/(T2-T1)，T1=Tc+15℃，T2=Tc+25℃。
Preferably, described exothermic material setting themselves temperature is arbitrary value in 0-250 DEG C.
The invention has the beneficial effects as follows:
1, the present invention can reach the automatic constant-temperature object that " oneself " controls, and power consumption is only used for maintaining the temperature of grey headwall in this case, and energy-saving effect is fairly obvious.
2, energy of the present invention can use effectively and reasonably.Electric precipitation ash bucket self-control thermostatic electric heater product can only heat supply when needed; Also can select corresponding product according to the radiation loss of equipment, compared with heating with traditional electrical heating wire, energy-saving effect is remarkable especially.
3, product of the present invention is except general environment uses, and can also use in explosion-proof environment.
4, long service life of the present invention, transmission No leakage, free from environmental pollution.
5, holding temperature of the present invention can control effectively, and is unlikely to overheated, to thermal media, and outstanding its superiority of display; Holding temperature scope is large, reaches as high as 250 DEG C or higher.
6, small product size of the present invention is little, flexible, easy construction, and can not increase the heat insulation work amount of equipment, line service amount is little.
7, simple, the heating of present system evenly, temperature accurately, reaction is quick, can selected control or remote control, realize automatic management.Low-temperature condition, fast starting, homogeneous temperature, because each local all can be regulated by the variations in temperature heating place because of it automatically.
8, simple installation of the present invention, safeguard simple, whole day service, automatization level is high, and operation and maintenance expense is low.Safe and reliable, purposes is wide, free from environmental pollution, the life-span is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the relation phenogram of resistance of the present invention and temperature;
Fig. 3 is the relation phenogram of voltage of the present invention and electric current;
Fig. 4 is the relation phenogram of electric current of the present invention and time;
In figure: 1, power lead, 2, fin, 3, insulating materials, 4, exothermic material.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the present invention is described in further detail:
As shown in Figure 1, a kind of electric precipitation ash bucket self-control thermostatic electric heater of the present invention, comprise fin 2, exothermic material 4 and power lead 1, exothermic material 4 is set in fin 2, described exothermic material 4 connects power lead 1, fill insulant 3 between described exothermic material 4 and fin 2.Described exothermic material 4 is made up of ptc material.Described insulating materials 3 is magnesia powder or outsourcing insulating paper.Described fin 2 is square.
A kind of control method of electric precipitation ash bucket self-control thermostatic electric heater, described exothermic material 4 is controlled by Open loop temperature, and when to exothermic material 4 heat temperature raising, the resistivity being in the exothermic material 4 of cold conditions is very low, the electric current passed through is comparatively large, exothermic material 4 rapid temperature increases; When temperature reaches exothermic material 4 setting themselves temperature, exothermic material 4 resistivity sharply increases, and electric current drops to stationary value, reaches the automatic constant-temperature object that " oneself " controls.Power consumption is only used for maintaining the temperature of grey headwall in this case, and energy-saving effect is fairly obvious.
The temperature coefficient of exothermic material 4 is the relative change of the resistance that variations in temperature causes, and represents with temperature coefficient α,
α=(lgR2-lgR1)/(T2-T1)，T1=Tc+15℃，T2=Tc+25℃。
Described exothermic material 4 setting themselves temperature is arbitrary value in 0-250 DEG C.
Resistance-temperature characteristics, usually referred to as resistivity-temperature characteristics, refers under the voltage of regulation, the dependence between exothermic material 4 zero power resistance and resistive element temperature.Zero power resistance, refer at a certain temperature measure exothermic material 4 resistance value time, be added in the ohmically power consumption of exothermic material 4 extremely low, the change in resistance of low exothermic material 4 resistance to causing because of its power consumption is negligible.
As shown in Figure 2, the zero-power resistance that records under referring to environment temperature 25 DEG C of conditions of specified zero power resistance.The important parameter characterizing resistivity-temperature characteristics quality is temperature coefficient α, reflection be the steep of resistance-temperature characteristic curve.Temperature coefficient α is larger, and the reaction of exothermic material 4 pairs of variations in temperature is sensitiveer, and namely exothermic material 4 effect is more remarkable, and the performance of its corresponding exothermic material 4 is also better, and service life is longer.The temperature coefficient of exothermic material 4 is defined as the relative change of the resistance that variations in temperature causes.Generally, T1 gets Tc+15 DEG C to α=(lgR2-lgR1)/(T2-T1), and T2 gets Tc+25 DEG C and carrys out accounting temperature coefficient.
As shown in Figure 3, voltage-current characteristic is called for short C-V characteristic, illustrates exothermic material 4 and is adding under electrical load reaches thermally equilibrated situation, the relation of interdependence of voltage and electric current.The C-V characteristic of exothermic material 4 is broadly divided into three regions: the region between 0-Vk is called linear zone, and the relation of voltage and current around here meets Ohm's law substantially, does not produce obvious nonlinear change, also claims to be failure to actuate district.Region between Vk-Vmax is called transition district, and now because the self-heating of exothermic material 4 heats up, resistance value produces transition, and electric current declines along with the rising of voltage, so this district also claims active region.Be called breakdown region in the region of more than VD, now electric current rises along with the rising of voltage, the resistance exponentially type decline of exothermic material 4, so voltage is higher, electric current is larger, and the temperature of exothermic material 4 is higher, resistance is lower, causes the thermal breakdown of exothermic material 4 very soon.C-V characteristic is the important references characteristic of overload protection exothermic material 4.
As shown in Figure 4, current-time characteristic refers to that exothermic material 4 is being executed in alive process, the time dependent characteristic of electric current.Start to power up the electric current of moment and be called initial current, electric current when reaching thermal balance is called aftercurrent.At certain environment temperature, add an initial current (guarantee is action current) to exothermic material 4, the time experienced when being reduced to 50% of initial current by the electric current of exothermic material 4 is exactly actuation time.Current-time characteristic is the important references characteristic of autodegauss exothermic material 4, delayed startup exothermic material 4, overload protection exothermic material 4.
Energy of the present invention can use effectively and reasonably.Electric precipitation ash bucket self-control thermostatic electric heater product can only heat supply when needed; Also can select corresponding product according to the radiation loss of equipment, compared with heating with traditional electrical heating wire, energy-saving effect is remarkable especially.Product, except general environment uses, can also use in explosion-proof environment.Long service life, transmission No leakage, free from environmental pollution.Holding temperature can control effectively, be unlikely to overheated, to thermal media, outstanding its superiority of display; Holding temperature scope is large, reaches as high as 250 DEG C or higher.Small product size is little, flexible, easy construction, and can not increase the heat insulation work amount of equipment, line service amount is little.System is simple, heating evenly, temperature accurately, reaction is quick, can selected control or remote control, realize automatic management.Low-temperature condition, fast starting, homogeneous temperature, because each local all can be regulated by the variations in temperature heating place because of it automatically.Simple installation, safeguard simple, whole day service, automatization level is high, and operation and maintenance expense is low.Safe and reliable, purposes is wide, free from environmental pollution, the life-span is long.
The Performance comparision of the old-fashioned board-like electric heating system of table 1 and electric precipitation ash bucket self-control thermostatic electric heater
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment to invention has been detailed description, will be understood by those skilled in the art that: still can modify to the present invention or equivalent replacement, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. an electric precipitation ash bucket self-control thermostatic electric heater, it is characterized in that: comprise fin, exothermic material and power lead, in fin, arrange exothermic material, described exothermic material connects power lead, fill insulant between described exothermic material and fin.
2. a kind of electric precipitation ash bucket self-control thermostatic electric heater according to claim 1, is characterized in that: described exothermic material is made up of ptc material.
3. a kind of electric precipitation ash bucket self-control thermostatic electric heater according to claim 2, is characterized in that: described insulating materials is magnesia powder or outsourcing insulating paper.
4. a kind of electric precipitation ash bucket self-control thermostatic electric heater according to claim 3, is characterized in that: described fin is square.
5. the control method of a kind of electric precipitation ash bucket self-control thermostatic electric heater described in claim 1-4, it is characterized in that: described exothermic material is controlled by Open loop temperature, when to exothermic material heat temperature raising, the resistivity being in the exothermic material of cold conditions is very low, the electric current passed through is comparatively large, exothermic material rapid temperature increases; When temperature reaches exothermic material setting themselves temperature, exothermic material resistivity sharply increases, and electric current drops to stationary value, reaches the automatic constant-temperature object that " oneself " controls.
6. the control method of a kind of electric precipitation ash bucket self-control thermostatic electric heater according to claim 5, is characterized in that: the temperature coefficient of exothermic material is the relative change of the resistance that variations in temperature causes, and represents with temperature coefficient α,
α=(lgR2-lgR1)/(T2-T1)，T1=Tc+15℃，T2=Tc+25℃。
7. the control method of a kind of electric precipitation ash bucket self-control thermostatic electric heater according to claim 5, is characterized in that: described exothermic material setting themselves temperature is arbitrary value in 0-250 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510637446.XA CN105435965A (en) | 2015-10-06 | 2015-10-06 | Electric dedusting dust bucket self-control constant-temperature electric heater and control method thereof |
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| CN201510637446.XA CN105435965A (en) | 2015-10-06 | 2015-10-06 | Electric dedusting dust bucket self-control constant-temperature electric heater and control method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109890090A (en) * | 2019-02-25 | 2019-06-14 | 东南大学 | A kind of PTC electric heater unit on ash bucket for electric precipitator |
| CN109939500A (en) * | 2019-03-24 | 2019-06-28 | 新汶矿业集团有限责任公司泰山盐化工分公司 | A kind of calcium carbide deduster and grey feed bin are with firing hazard detection system and working method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2117683U (en) * | 1991-09-27 | 1992-09-30 | 刘玉胜 | Electric heater |
| JPH1133432A (en) * | 1997-07-15 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Hopper heater controller for eletrostatic precipitator |
| CN2728155Y (en) * | 2004-06-10 | 2005-09-21 | 深圳山源电器有限公司 | Positive temperature coefficient thermistor heater |
| CN201372072Y (en) * | 2009-01-12 | 2009-12-30 | 江苏紫光吉地达环境工程科技股份有限公司 | Heater of ash bucket of dust remover |
| CN201644232U (en) * | 2010-04-25 | 2010-11-24 | 陈玉珍 | Electrical dust precipitator with dust hopper and heating sheet |
| CN202460838U (en) * | 2012-03-08 | 2012-10-03 | 沃晓枫 | Electric dust remover with dust hopper heating device |
| CN203294597U (en) * | 2013-05-13 | 2013-11-20 | 镇江市东方节能设备有限公司 | Ash bucket heating device |
| CN205095962U (en) * | 2015-10-06 | 2016-03-23 | 江苏高易电控科技有限公司 | Electric precipitation ash bucket automatic control constant temperature electric heater |
-
2015
- 2015-10-06 CN CN201510637446.XA patent/CN105435965A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2117683U (en) * | 1991-09-27 | 1992-09-30 | 刘玉胜 | Electric heater |
| JPH1133432A (en) * | 1997-07-15 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Hopper heater controller for eletrostatic precipitator |
| CN2728155Y (en) * | 2004-06-10 | 2005-09-21 | 深圳山源电器有限公司 | Positive temperature coefficient thermistor heater |
| CN201372072Y (en) * | 2009-01-12 | 2009-12-30 | 江苏紫光吉地达环境工程科技股份有限公司 | Heater of ash bucket of dust remover |
| CN201644232U (en) * | 2010-04-25 | 2010-11-24 | 陈玉珍 | Electrical dust precipitator with dust hopper and heating sheet |
| CN202460838U (en) * | 2012-03-08 | 2012-10-03 | 沃晓枫 | Electric dust remover with dust hopper heating device |
| CN203294597U (en) * | 2013-05-13 | 2013-11-20 | 镇江市东方节能设备有限公司 | Ash bucket heating device |
| CN205095962U (en) * | 2015-10-06 | 2016-03-23 | 江苏高易电控科技有限公司 | Electric precipitation ash bucket automatic control constant temperature electric heater |
Non-Patent Citations (1)
| Title |
|---|
| 周志敏 等: "《热敏电阻及其应用电路》", 31 January 2013, 中国电力出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109890090A (en) * | 2019-02-25 | 2019-06-14 | 东南大学 | A kind of PTC electric heater unit on ash bucket for electric precipitator |
| CN109890090B (en) * | 2019-02-25 | 2021-09-28 | 东南大学 | PTC electric heating device for ash bucket of electric dust collector |
| CN109939500A (en) * | 2019-03-24 | 2019-06-28 | 新汶矿业集团有限责任公司泰山盐化工分公司 | A kind of calcium carbide deduster and grey feed bin are with firing hazard detection system and working method |
| CN109939500B (en) * | 2019-03-24 | 2021-02-09 | 山东泰汶盐化工有限责任公司 | Calcium carbide dust remover and explosion danger alarm device for ash bin and working method |
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Application publication date: 20160330 |