CN1195753A - Heating method for deaeration reaction agent in desorption deaerator - Google Patents
Heating method for deaeration reaction agent in desorption deaerator Download PDFInfo
- Publication number
- CN1195753A CN1195753A CN 97103956 CN97103956A CN1195753A CN 1195753 A CN1195753 A CN 1195753A CN 97103956 CN97103956 CN 97103956 CN 97103956 A CN97103956 A CN 97103956A CN 1195753 A CN1195753 A CN 1195753A
- Authority
- CN
- China
- Prior art keywords
- temperature
- reaction agent
- heating
- reactor
- deaerization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The heating method of deaerization reaction agent in stripping deaerator is characterized by adopting PTC heating element to heat deaerization reaction agent. As compared with traditional electroheating tube mode, said invention possesses the advantages of long heating element life, long effective time of deaerization reaction agent, no temp-control circuit and saving energy. Said invention can make the deaerization reaction continuously implement for a long time at its set temperature, and can automatically control the temp. at any position in the set temp. range.
Description
The present invention relates to the boiler water processing method, especially relate to the method for boiler feedwater deoxygenation.
Existing desorption deaerator generally adopts electric heating tube to give the heating of the deaeration reaction agent in the reactor.The inner electrothermal wire heating's element that adopts of electric heating tube is as the deaeration reaction agent heating element heater.Above-mentioned heating means exist following deficiency: one because the thermal conductivity factor of deaeration reaction agent is very low, can't reach uniform heating with the electric heating tube mode of heating; The thermograde at each position of inside reactor is very big, is difficult to reach and keep desirable deoxygenation reflection temperature; Temperature detecting sensor can not reflect state of temperature from the temperature that sensing point detects comprehensively.They are two years old, if adopt interrupted mode of heating, be that control circuit receives the mode that starts heater behind the boiler replenishing water signal, because the thermal conductivity factor of deaeration reaction agent is very low, can't guarantee to reach the deoxygenation reaction temperature in short time, cause a part of not gas of deoxidation to mix, can not play the water deoxygenation effect with water.Its three, if adopt the continuous mode of heating of automatic control because the thermal conductivity factor of deaeration reaction agent is very low, when the temperature of sensing point reaches the deoxygenation reaction temperature, near the electric heating tube of reactor considerably beyond the deoxygenation reaction temperature, the very fast inefficacy of oxygen scavenger.And, when not giving boiler replenishing water, there is not air to flow in the reactor, electric heater " dry combustion method " very easily burns.Therefore, this kind method power consumption is very big, wastes energy, and the life-span of electric heater and oxygen scavenger is short.
The objective of the invention is to make in the reactor of desorption deaerator can continue for a long time to keep design temperature, the temperature that can control any position again automatically is no more than design temperature.
Another purpose of the present invention is to prolong the effective time limit of oxygen scavenger when guaranteeing reliable deaerating effect.
Another purpose of the present invention is the life-span of effective extension reactor heating system.
A further object of the present invention is effective saves energy.
The key that above-mentioned purpose of the present invention realizes is: adopt the PTC heating element heater, the heating deaeration reaction agent, this mode only needs to consume the electric energy that continues insulation in the reactor that makes desorption deaerator in continuous service, do not need temperature-control circuit, can guarantee that interior each position of reactor of desorption deaerator keeps the deoxygenation reaction temperature automatically.The electric energy that the present invention consumes is much smaller than the electric energy of the lasting heating of other mode of heating.
The present invention compares with traditional electric heating tube mode, has following advantage:
The heater element life-span long, the PTC heater element has temperature automatically controlled characteristic, self temperature can not surpass design temperature, self can not occur and too highly cause that the deaeration reaction agent burning lost efficacy.
2. the deaeration reaction agent effective time limit is long, and according to the characteristic of PTC heater element, any position can not occur that local temperature is too high to cause that the deaeration reaction agent burning lost efficacy in the reactor.
3. there is not temperature-control circuit.The PTC heater element is temperature automatically controlled, temperature control circuit need be set regulate the deaeration reaction agent heating-up temperature.Reduced the unstable link of system.
4. energy-conservation.When reactor continued insulation for a long time, the PTC heater element was regulated the additional heat power demand automatically, does not have unnecessary energy dissipation.
The drawing explanation:
Fig. 1 is the desorption deaerator schematic diagram.
Fig. 2 is PTC heater element resistance a---temperature characteristics.
Fig. 3 is the Facad structure schematic diagram of reactor.
Fig. 4 is the side structure schematic diagram of reactor.
Desorption deaerator principle and structure involved in the present invention are seen accompanying drawing, wherein:
1. be that injector 2. is gas separator for desorption device 3.
4. be that heat exchanger 5. is electrical control cabinet for reactor 6.
7. surveying mouth 8. for oxygen content is that cylindrical shell 9. is feeding cover
10. be that pole 11. is cover plate for PTC heating element heater 12.
13. be binding post
The PTC heater element is a kind of with B
aTio
3Semiconductor is a material, and (positive temperature coefficient refers to that the resistance value of material rises with temperature to have the temperature-sensitive element of unique positive temperature coefficient.) more than Curie temperature tens the degree scopes in, its resistivity can increase 4-10 the order of magnitude, promptly so-called PTC effect.
The resistance of PTC heater element---the temperature relation curve is seen accompanying drawing 2.
The resistance of PTC heater element---" switching point " T is arranged on the temperature relation curve
b, when temperature reached switching point, resistance sharply increased.Under certain voltage, electric current, power drops to very little, and temperature is in relative equilibrium gradually, near temperature constant state.When temperature was elevated to certain design temperature, resistance can be in " disconnection " state greatly to the two poles of the earth that make the PTC element.This design temperature is according to service condition, by the PTC heater element manufacture and design that parameter determines, be lower than this temperature, the resistance drop low current increases, reach this temperature promptly almost no current pass through.That is to say that do not need temperature-control circuit, the PTC heater element is controlled on the design temperature automatically.And reduce power and energy consumption automatically.
Adopt PTC heater element heating deaeration reaction agent in the reactor of desorption deaerator of the present invention, when reactor temperature was low, the PTC heater element had than low resistance, by bigger than large-current electric power.When temperature was raised to design temperature, PTC heater element resistance skyrocketed, near " opening circuit ".Along with the heat transfer between the deaeration reaction agent, heat radiation in the reactor, the PTC temperature of heating elements descends, and resistance reduces, and has certain electric current to pass through, and is in febrile state again.The size of this process electrical power is along with the change of the speed of the heat transfer between the deaeration reaction agent, heat radiation.Deaeration reaction agent enters insulating process after all reaching design temperature, because the reactor outside is surrounded by insulation material, heat dissipation capacity is very little, and the PTC heater element only needs can keep design temperature in the reactor for a long time with small-power compensatory reaction device dispersed heat very.
When desorption deaerator is in duty to boiler replenishing water, wait to remove carrier of oxygen and be heated to design temperature by other heater earlier, the temperature that enters again in the reactor reaction device can great changes have taken place, descend if any temperature, the PTC heater element can in time be heated, and makes that temperature returns to design temperature in the reactor.
Claims (1)
1, the heating means of deaeration reaction agent in a kind of desorption deaerator is characterized in that: adopt the PTC heating element heater, the heating deaeration reaction agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103956 CN1195753A (en) | 1997-04-08 | 1997-04-08 | Heating method for deaeration reaction agent in desorption deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103956 CN1195753A (en) | 1997-04-08 | 1997-04-08 | Heating method for deaeration reaction agent in desorption deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1195753A true CN1195753A (en) | 1998-10-14 |
Family
ID=5167014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103956 Pending CN1195753A (en) | 1997-04-08 | 1997-04-08 | Heating method for deaeration reaction agent in desorption deaerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1195753A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837646A (en) * | 2017-11-28 | 2018-03-27 | 江苏科威环保技术有限公司 | The safe controlling device of more component organic exhaust gas and its technique |
-
1997
- 1997-04-08 CN CN 97103956 patent/CN1195753A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837646A (en) * | 2017-11-28 | 2018-03-27 | 江苏科威环保技术有限公司 | The safe controlling device of more component organic exhaust gas and its technique |
| CN107837646B (en) * | 2017-11-28 | 2023-07-28 | 江苏科威环保技术有限公司 | Multi-component organic waste gas safety treatment device and process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203731704U (en) | Dry-burning-prevention device and electric water heater | |
| CA2281951A1 (en) | Integral water heater and water temperature sensor | |
| KR101700065B1 (en) | Control apparatus for electrode boiler with intake/exhaust control and electronic valve, and method for controlling electrode boiler using the same | |
| CN109424416A (en) | Cooling hot-water heating system for electric vehicle | |
| US9803886B2 (en) | Instantaneous water-heating dispensing device and heating module thereof | |
| CN1195753A (en) | Heating method for deaeration reaction agent in desorption deaerator | |
| KR20060118822A (en) | A water boiler with carbon tube heater which insided screw | |
| CN204100594U (en) | Anti-dry burning device and electric heater | |
| CN113623871B (en) | Liquid heater and dry-heating-preventing heating control method thereof | |
| CN2297633Y (en) | Desorption deaerator | |
| CN213273843U (en) | Evaporative cooling device with temperature rising and humidity reducing functions | |
| CN2591499Y (en) | Instant heating thermosensitive ceramic electric water heater | |
| CN211174405U (en) | Diesel oil heating device | |
| CN111550333B (en) | Water collecting cup heater for diesel engine | |
| CN209965003U (en) | Temperature control device and temperature control protection device for heating aquarium | |
| CN2518024Y (en) | Electric water heater | |
| CN2862906Y (en) | Insulating pot with temperature control structure | |
| CN217305767U (en) | Mattress temperature control system and intelligent mattress | |
| CN215724126U (en) | Instant heating type constant temperature heater | |
| CN220355741U (en) | Electric heating dry burning prevention structure | |
| CN212691917U (en) | Extremely hot tubular heating system | |
| CN217396160U (en) | Warm air system and vehicle | |
| CN106523203A (en) | Diesel thermostat and control method | |
| CN2369123Y (en) | Electric heater for directly heating water | |
| KR900010499Y1 (en) | Electric underfloor heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |