CN207528079U - A kind of air preheating system of tubular heater - Google Patents
A kind of air preheating system of tubular heater Download PDFInfo
- Publication number
- CN207528079U CN207528079U CN201721679434.4U CN201721679434U CN207528079U CN 207528079 U CN207528079 U CN 207528079U CN 201721679434 U CN201721679434 U CN 201721679434U CN 207528079 U CN207528079 U CN 207528079U
- Authority
- CN
- China
- Prior art keywords
- air
- conducting sleeve
- heat conducting
- receiver
- tubular heater
- 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.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 238000009423 ventilation Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000013022 venting Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a kind of air preheating systems of tubular heater, including heat conducting sleeve, the top and bottom of the heat conducting sleeve are threaded with epimere smoke pipe and hypomere smoke pipe respectively, the heat conducting sleeve is internally provided with the first air receiver and the second air receiver, the lower part of second air receiver is connected by the second ventilation duct with seal thermal-insulation box, the side of the epimere smoke pipe is communicated with air heat exchanger, air-introduced machine is installed on the flue of the air heat exchanger, the air heat exchanger lower part is connected by third venting pipe with seal thermal-insulation box, the air outlet for air pump and the intrinsic combustion chamber of heating furnace.By the design of heat conducting sleeve, air can be heated using the heat in flue, air preheat ample time；By the design of heat conducting sleeve and air heat exchanger, the heat in flue can be made full use of, and does not influence the stable gas pressure in flue, while stable air preheat effect can be provided.
Description
Technical field
The utility model is related to heating furnace technical field, specially a kind of air preheating system of tubular heater.
Background technology
Tubular heater is a kind of direct heated type heating equipment, is mainly used for heating liquid or gas industrial chemicals, institute
Usually there are fuel oil and fuel gas with fuel.The heat transfer type of tubular heater is based on radiant heat transfer.Tubular heater, including
Furnace body and residual neat recovering system are heated, residual neat recovering system includes air preheater, and wherein air preheater is by on-condensing
Two sections of air preheater and condensation regenerative air heater form, and condensate liquid collecting pit, air-introduced machine are additionally provided in residual neat recovering system
And air blower, condensate liquid collecting pit are directly arranged in below condensation regenerative air heater, condensate liquid collecting pit is connected with air-introduced machine,
Air blower is connected with condensation regenerative air heater.The exhaust gas temperature of its heating furnace can be reduced to 100 DEG C or so, realize and contain in flue gas
The partial condensation of sour water steam, and while recovered flue gas low temperature sensible heat, the latent heat of vaporization of energy recovery section steam containing sour water,
Thermal efficiency of heating furnace is further improved, it is energy saving.
However in the air preheating system of existing tubular heater, need to keep certain air pressure can just make in flue
It is abundant to obtain heating furnace burning；Therefore it needs strictly to control speed and the flue gas velocity of air-introduced machine when in use to keep steady in flue
Fixed air pressure, due to the limited speed of air-introduced machine, the heat exchange speed in air heat exchanger heat exchange is slower, it is impossible to fully right
Air is preheated.
Utility model content
The purpose of this utility model is to provide a kind of air preheating systems of tubular heater, air can be carried out double
It preheats again, pre-heat effect is good, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical solution：A kind of air preheat system of tubular heater
System, including heat conducting sleeve, the top and bottom of the heat conducting sleeve are threaded with epimere smoke pipe and hypomere smoke pipe respectively, described
Heat conducting sleeve is internally provided with the first air receiver and the second air receiver, and the lower part of first air receiver passes through the first ventilation duct
It is connected with seal thermal-insulation box, the lower part of second air receiver is connected by the second ventilation duct with seal thermal-insulation box, the epimere
The side of smoke pipe is communicated with air heat exchanger, and air-introduced machine is equipped on the flue of the air heat exchanger, and the air changes
Hot device lower part is connected by third venting pipe with seal thermal-insulation box, and the side of the seal thermal-insulation box is communicated with for air pump, described
For the air outlet of air pump and the intrinsic combustion chamber of heating furnace.
Preferably, the first solenoid valve, are separately installed on first ventilation duct, the second ventilation duct and third venting pipe
Two solenoid valves and gas flow valve.
Preferably, the top of the heat conducting sleeve offers the air inlet convenient for the first air receiver and the second air receiver air inlet
Mouthful.
Preferably, fixing sleeve is connected to muff on the heat conducting sleeve.
Preferably, the hypomere smoke pipe is fixedly connected on the top of heating furnace body.
Preferably, the automatically controlled end of first solenoid valve, second solenoid valve and gas flow valve respectively with dsp controller
Control output end be electrically connected.
Compared with prior art, the beneficial effects of the utility model are：
1st, by the design of heat conducting sleeve, air can be heated using the heat in flue, the air preheat time
Abundance, pre-heat effect are good；
2nd, by the design of heat conducting sleeve and air heat exchanger, than it is independent using air heat exchanger, can make full use of
Heat in flue, and the stable gas pressure in flue is not influenced, while can provide stable air preheat effect.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the A-A cross-sectional views in the utility model Fig. 1；
Fig. 3 is the electric connection system block diagram of the utility model.
In figure：1 heating furnace body, 2 combustion chambers, 3 hypomere smoke pipes, 4 first ventilation ducts, 5 first solenoid valves, 6 muffs, 7
Heat conducting sleeve, 8 first air receivers, 9 air inlets, 10 epimere smoke pipes, 11 air-introduced machines, 12 air heat exchangers, 13 second air receivers, 14
Second solenoid valve, 15 second ventilation ducts, 16 seal thermal-insulation boxes, 17 are for air pump, 18 third venting pipes, 19 gas flow valves, 20
Dsp controller.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：The air preheating system of the tubular heater, packet
Heat conducting sleeve 7 is included, the top and bottom of the heat conducting sleeve 7 are threaded with epimere smoke pipe 10 and hypomere smoke pipe 3, smoke pipe respectively
It is divided into two sections, installation, dismounting and easy to clean, the heat conducting sleeve 7 is internally provided with the first air receiver 8 and the second air receiver
13, the lower part of first air receiver 8 is connected by the first ventilation duct 4 with seal thermal-insulation box 16, second air receiver 13
Lower part is connected by the second ventilation duct 15 with seal thermal-insulation box 16, and the side of the epimere smoke pipe 10 is communicated with air heat exchanger
12, air-introduced machine 11 is installed, the flue gas of flue lower part is led to sky by air-introduced machine 11 on the flue of the air heat exchanger 12
In gas heat exchanger 12, flue is returned to after heat exchange, 12 lower part of air heat exchanger passes through third venting pipe 18（Third venting pipe
18 are used for blowing air）It is connected with seal thermal-insulation box 16, the side of the seal thermal-insulation box 16 is communicated with for air pump 17, the air feed
The air outlet of pump 17 is connected with the combustion chamber 2 in heating furnace body 1.
Specifically, it is separately installed with the first electromagnetism on first ventilation duct 4, the second ventilation duct 15 and third venting pipe 18
Valve 5, second solenoid valve 14 and gas flow valve 19 pass through the first solenoid valve 5 and the on-off action of second solenoid valve 14, Ke Yiyi
Secondary alternating uses the first air receiver 8 and the second air receiver 13, provides the grace time of an air heat-exchange, improves heat exchange
Effect.
Specifically, the top of the heat conducting sleeve 7 offer convenient for 13 air inlet of the first air receiver 8 and the second air receiver into
Air port 9, the design of air inlet 9 are for the ease of air receiver air inlet, while also set up airstrainer on air inlet 9.
Specifically, fixing sleeve is connected to muff 6 on the heat conducting sleeve 7, the effect of muff 6 is to prevent heat from dissipating outward
Hair reduces thermal loss.
Specifically, the hypomere smoke pipe 3 is fixedly connected on the top of heating furnace body 1.
Specifically, the automatically controlled end of first solenoid valve 5, second solenoid valve 14 and gas flow valve 19 respectively with DSP
The control output end of controller 20 is electrically connected, and the first solenoid valve 5 and the second electromagnetism can be achieved by the effect of dsp controller 20
Automatically controlling for valve 14, it is very convenient.
Operation principle：When in use, heat conducting sleeve 7 and air heat exchanger 12 can preheat air, and be communicated to
In seal thermal-insulation box 16, by carrying out air feed for air pump 17；The first air receiver 8 and the second air receiver are provided in heat conducting sleeve 7
13, by the dsp controller 20 successively alternately opening of the first solenoid valve 5 of control and second solenoid valve 14, so as to be used alternatingly the
One air receiver 8 and the second air receiver 13（Interval time is arranged on 5-10 seconds）, the same time, the gas in an air receiver is taken out
Go out to use, the air of another air receiver is preheated（Air has more sufficient preheating time, and pre-heat effect is more preferable）, together
When, cooperation air heat exchanger 12 uses, and effect is more preferable.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case of the principle and spirit for not departing from the utility model, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of air preheating system of tubular heater, including heat conducting sleeve（7）, it is characterised in that：The heat conducting sleeve（7）
Top and bottom be threaded with epimere smoke pipe respectively（10）With hypomere smoke pipe（3）, the heat conducting sleeve（7）Inside setting
There is the first air receiver（8）With the second air receiver（13）, first air receiver（8）Lower part pass through the first ventilation duct（4）With it is close
Seal incubator（16）Connection, second air receiver（13）Lower part pass through the second ventilation duct（15）With seal thermal-insulation box（16）Even
It is logical, the epimere smoke pipe（10）Side be communicated with air heat exchanger（12）, the air heat exchanger（12）Flue on
Air-introduced machine is installed（11）, the air heat exchanger（12）Lower part passes through third venting pipe（18）With seal thermal-insulation box（16）Even
It is logical, the seal thermal-insulation box（16）Side be communicated with for air pump（17）, it is described to supply air pump（17）Air outlet and heating furnace sheet
Body（1）Interior combustion chamber（2）Connection.
2. a kind of air preheating system of tubular heater according to claim 1, it is characterised in that：First ventilation
Pipe（4）, the second ventilation duct（15）With third venting pipe（18）On be separately installed with the first solenoid valve（5）, second solenoid valve（14）
And gas flow valve（19）.
3. a kind of air preheating system of tubular heater according to claim 1, it is characterised in that：The heat conducting sleeve
（7）Top offer convenient for the first air receiver（8）With the second air receiver（13）The air inlet of air inlet（9）.
4. a kind of air preheating system of tubular heater according to claim 1, it is characterised in that：The heat conducting sleeve
（7）Upper fixing sleeve is connected to muff（6）.
5. a kind of air preheating system of tubular heater according to claim 1, it is characterised in that：The hypomere smoke pipe
（3）It is fixedly connected on heating furnace body（1）Top.
6. a kind of air preheating system of tubular heater according to claim 2, it is characterised in that：First electromagnetism
Valve（5）, second solenoid valve（14）And gas flow valve（19）Automatically controlled end respectively with dsp controller（20）Control output end
It is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679434.4U CN207528079U (en) | 2017-12-06 | 2017-12-06 | A kind of air preheating system of tubular heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679434.4U CN207528079U (en) | 2017-12-06 | 2017-12-06 | A kind of air preheating system of tubular heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528079U true CN207528079U (en) | 2018-06-22 |
Family
ID=62577817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721679434.4U Expired - Fee Related CN207528079U (en) | 2017-12-06 | 2017-12-06 | A kind of air preheating system of tubular heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207528079U (en) |
-
2017
- 2017-12-06 CN CN201721679434.4U patent/CN207528079U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 |