CN209588087U - A kind of rotary air heater of hydrophobic side automatic adjustment - Google Patents
A kind of rotary air heater of hydrophobic side automatic adjustment Download PDFInfo
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- CN209588087U CN209588087U CN201920153214.0U CN201920153214U CN209588087U CN 209588087 U CN209588087 U CN 209588087U CN 201920153214 U CN201920153214 U CN 201920153214U CN 209588087 U CN209588087 U CN 209588087U
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- air heater
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- steam air
- hydrophobic
- heat exchange
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- 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
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Abstract
A kind of rotary air heater of hydrophobic side automatic adjustment, steam air heater includes the valve assembly being arranged on the hydrophobic lateral line of steam air heater and the rotating mechanism for changing steam air heater heat exchange element direction；Steam air heater heat exchange element one end connects steam inlet pipe, and the other end connects drain pipe；Rotating mechanism includes speed reducer, and speed reducer drives steam air heater heat exchange element to rotate between 0 ° -90 ° by link mechanism；Valve assembly includes the hand stop valve being arranged on steam air heater hydrophobic pipeline, pneumatic control valve, and pneumatic control valve adjusts the height of steam air heater water level inside using the cold side metal wall temperature of air preheater as adjustment signal.The utility model is conducive to improve heat transfer temperature difference, reduces steam air heater heat exchange area, reduces manufacturing cost.Heat exchange element is rotated to downstream direction when steam air heater is stopped transport, can reduce boiler air collateral resistance, saves station service.
Description
Technical field
The utility model relates to boiler accessory machineries, and in particular to a kind of rotary air heater of hydrophobic side automatic adjustment.
Background technique
Station boiler generally using steam air heater preheat wind-warm syndrome by the way of to solve machine unit in winter and underrun when boiler
The low-temperature corrosion problem of back-end surfaces, steam air heater are arranged in the import air duct of air preheater, utilize the steam extraction of steam turbine
Cryogenic air is preheated to improve the tube wall temperature of heated surface at the end of boiler, is usually with the cold side metal wall temperature of air preheater
Regulated variable.
The control mode of conventional steam air heater is adjusted using steam inlet side, heat exchange element is fixedly mounted, such design side
Case has the following problems: 1) adjust heating quantity of steam while, since steam air heater internal pressure decreases, and saturation temperature
Also it decreases, i.e., the steam consumption and temperature of steam air heater are all in synchronous change；2) under summer or boiler higher load operating condition, warm wind
Heat exchange element can not move when device is stopped transport, and increase primary and secondary air collateral resistance and primary air fan, air-supply electromechanics when boiler operatiopn
Consumption.
Utility model content
The purpose of this utility model is that being directed to above-mentioned the problems of the prior art, a kind of automatic adjustment of hydrophobic side is provided
Rotary air heater, temperature-controlled package are arranged on hydrophobic lateral line, by adjusting hydrophobic flow control steam air heater internal water
The height of position realizes the adjusting of steam air heater thermic load；Additional resistance and energy consumption are not increased when steam air heater is stopped transport.
To achieve the goals above, the rotary air heater of the utility model hydrophobic side automatic adjustment, including setting is warm
Valve assembly on the hydrophobic lateral line of wind device and the rotating mechanism for changing steam air heater heat exchange element direction；Described is warm
Wind device heat exchange element is arranged in shell, and steam air heater heat exchange element one end connects steam inlet pipe, and the other end connects drain pipe；Rotation
Mechanism includes speed reducer, and speed reducer drives steam air heater heat exchange element to rotate between 0 °~90 ° by link mechanism；The tune
Saving valve module includes that the second hand stop valve, pneumatic control valve, third being arranged on the hydrophobic export pipeline of steam air heater are cut manually
Only valve and the 4th hand stop valve.Second hand stop valve, pneumatic control valve and the third hand stop valve is successively gone here and there
On the first leg, the 4th hand stop valve is arranged in second branch connection arrangement, and the first branch is in parallel with second branch, will dredge
Water drains into condenser；Pneumatic control valve adjusts steam air heater internal water using the cold side metal wall temperature of air preheater as adjustment signal
The height of position.
The drain regulation valve module includes the third branch in parallel with the first branch and second branch, third branch
The 5th hand stop valve of road setting, when hydrophobic pipeline blocking or the 5th hand stop valve of pneumatic control valve fail-open.
There are station pointer and dial in the speed reducer surface, when station pointer is directed toward 0 ° of dial, represents warm
Wind device is in running order, when station pointer is directed toward 90 ° of dial, represents steam air heater and is in off working state.
The steam air heater heat exchange element passes through steam inlet pipe using several finned tubes being arranged side by side, the steam inlet pipe
Case is connected with one end of all finned tubes, and the other end of all finned tubes connects drain pipe by hydrophobic bobbin carriage.
The flange and anti-flange that the steam air heater heat exchange element is exported using steam inlet pipe import with drain pipe adjust it
Direction afterwards is fixed.Steam air heater heats steam and comes from extracted steam from turbine vapour source, the hydrophobic export pipeline setting first of steam air heater
Hand stop valve.
The adjusting method of the utility model steam air heater, comprising: when the cold side metal wall temperature of air preheater is lower than setting value
When, extracted steam from turbine vapour source enters steam air heater, carries out heat exchange with bis- cold wind of a ﹑；The 4th in second branch is cut manually
Only valve is normally opened hydrophobic unobstructed to guarantee；According to air preheater cold-end air tube wall temperature, the pneumatic control valve in the first branch is controlled,
By adjusting hydrophobic flow to change the height of steam air heater water level inside, and then change the power output that heat transfer area adjusts steam air heater；
When steam air heater stop transport when, steam air heater heat exchange element is rotated to downstream direction by speed reducer, make steam air heater heat exchange element with
Air duct is parallel.
Preferably, in the adjusting method of the utility model steam air heater, third branch is set with the first and second branch circuit parallel connection,
When hydrophobic pipeline blocking or the 5th hand stop valve of pneumatic control valve fail-open third branch road.
Preferably, steam inlet pipe import and drain pipe are utilized after the direction of the utility model steam air heater heat exchange element is adjusted in place
The flange of outlet and anti-flange are fixed, and the bolt of flange and anti-flange is opened when rotation, is rotated further by the handwheel of speed reducer.
Compared with prior art, the rotary air heater of the utility model hydrophobic side automatic adjustment, will adjust temperature components
It is arranged on hydrophobic lateral line, in winter or under boiler at low load operating condition, with the cold end gold of air preheater when steam air heater puts into operation
Category wall temperature is adjustment signal, realizes steam air heater thermic load by adjusting the height of hydrophobic flow control steam air heater water level inside
It adjusts；Under summer or boiler higher load operating condition, heat exchange element is rotated to downstream direction when steam air heater is stopped transport, is formed straight
Ventilating duct, to reduce by one ﹑ Secondary Air collateral resistance of pot furnace and a wind machine ﹑ pressure fan power consumption.The utility model steam air heater goes out
Power adjustable range is big, and drain temperature is lower than the saturation temperature of steam, and heat utilization rate is high, is conducive to the steam for selecting lower pressure
Vapour source improves the efficiency of extracted steam from turbine backheat.The utility model is conducive to improve heat transfer temperature difference, reduces steam air heater heat-transfer surface
Product reduces manufacturing cost.When steam air heater is stopped transport, Guo Lu mono- ﹑ Secondary Air collateral resistance can be greatly lowered, save station service.
Detailed description of the invention
The valve assembly structure principle chart of Fig. 1 the utility model steam air heater；
The overall structure diagram of Fig. 2 the utility model steam air heater；
Structural schematic diagram when Fig. 3 the utility model steam air heater puts into operation；
Structural schematic diagram when Fig. 4 the utility model steam air heater is stopped transport；
In figure: 1- extracted steam from turbine vapour source；2- steam air heater；3- first manual shut-off valve；The second hand stop valve of 4-；5- gas
Dynamic regulating valve；6- third hand stop valve；The 4th hand stop valve of 7-；The 5th hand stop valve of 8-；9- is hydrophobic to drain into condenser；
10- shell；11- steam inlet pipe；12- steam inlet pipe case；13- finned tube；The hydrophobic bobbin carriage of 14-；15- drain pipe；16- speed reducer；17- connects
Linkage.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
Referring to Fig. 1-2, the rotary air heater of the utility model hydrophobic side automatic adjustment, include in structure shell 10,
Steam inlet pipe 11, steam inlet pipe case 12, finned tube 13, hydrophobic bobbin carriage 14, drain pipe 15, speed reducer 16 and link mechanism 17.
Steam air heater heat exchange element is arranged in shell 10, and steam air heater heat exchange element one end connects steam inlet pipe 11, the other end
Connect drain pipe 15；Rotating mechanism includes speed reducer 16, and speed reducer 16 drives steam air heater heat exchange element to exist by link mechanism 17
It being rotated between 0 °~90 °, there are station pointer and dial in 16 surface of speed reducer, when station pointer is directed toward 0 ° of dial, generation
Table steam air heater is in running order, when station pointer is directed toward 90 ° of dial, represents steam air heater and is in off working state.
Steam air heater heat exchange element passes through steam inlet pipe case 12 and institute using several finned tubes 13 being arranged side by side, steam inlet pipe 11
There is one end of finned tube 13 to be connected, the other end of all finned tubes 13 connects drain pipe 15 by hydrophobic bobbin carriage 14.
Steam air heater heat exchange element using steam inlet pipe and hydrophobic interface tube flange and anti-flange to its direction adjusted into
Row is fixed.Steam air heater heats steam and comes from extracted steam from turbine vapour source 1, and first manual shut-off valve is arranged in the hydrophobic export pipeline of steam air heater
3。
Drain regulation valve is manual including the second hand stop valve 4, pneumatic control valve 5, third hand stop valve the 6, the 4th
Shut-off valve 7 and the 5th hand stop valve 8, the second hand stop valve 4, pneumatic control valve 5 and third hand stop valve 6 are successively gone here and there
On the first leg, the 4th hand stop valve 7 is arranged in second branch connection arrangement, and the 5th hand stop valve 8 is arranged in third
Branch road, the first branch, second branch and third branch circuit parallel connection drain into condenser 9 for hydrophobic.
The pneumatic control valve 5 of the utility model adjusts warm wind using the cold side metal wall temperature of air preheater as adjustment signal
The height of device water level inside.When hydrophobic pipeline blocking or the 5th hand stop valve 8 of 5 fail-open of pneumatic control valve.
Referring to Fig. 3-4, the adjusting method of the utility model steam air heater the following steps are included:
When the cold side metal wall temperature of air preheater is lower than setting value, enter steam air heater from extracted steam from turbine vapour source 1,
Heat exchange is carried out with bis- cold wind of a ﹑, the 4th hand stop valve 7 is normally opened hydrophobic unobstructed to guarantee, pneumatic control valve 5 is pre- with air
Hot device cold side metal wall temperature is transferred signal, changes biography by adjusting hydrophobic flow with the height for changing steam air heater water level inside
Heat area guarantees the power output of steam air heater.Hydrophobic pipeline blocking or the 5th hand stop valve 8 of 5 fail-open of pneumatic control valve.
There are station pointer and dial in 16 surface of speed reducer, when station pointer is directed toward 0 ° of dial, represents steam air heater
In running order (put into operation state) represents steam air heater and is in off working state when station pointer is directed toward 90 ° of dial
(i.e. stoppage in transit state).When steam air heater changes into off working state by working condition, first 11 import of steam inlet pipe and drain pipe 15 are gone out
The bolt of the flange and anti-flange of mouth is all dismantled, and the handwheel of speed reducer 16 is rotated further by, and is passed through link mechanism 17 and is rotated steam inlet pipe
11 make the fin bobbin carriage 13 in steam air heater do 0 °~90 ° rotations, keep steam air heater fin bobbin carriage parallel with air duct, to reduce wind
Resistance；When speed reducer turns pointer and is directed toward 90 ° (i.e. stoppage in transit state), then bolt loaded onto, is tightened；Conversely, similarly.
The above is only the preferred embodiment of the present invention, not to do in any form to the utility model
It limits, it will be apparent to a skilled person that this is practical new under conditions of not departing from the spirit of the present invention and principle
Type can also carry out several modifications or simple replacement, these modifications and replacement also each fall within the model delimited by submitted claim
Within enclosing.
Claims (6)
1. a kind of rotary air heater of hydrophobic side automatic adjustment, it is characterised in that: including being arranged in the hydrophobic lateral line of steam air heater
On valve assembly and rotating mechanism for changing steam air heater heat exchange element direction；The steam air heater heat exchange element cloth
It sets in shell (10), steam air heater heat exchange element one end connects steam inlet pipe (11), and the other end connects drain pipe (15)；Whirler
Structure includes speed reducer (16), and speed reducer (16) drives steam air heater heat exchange element to turn between 0 °~90 ° by link mechanism (17)
Dynamic, the valve assembly includes the second hand stop valve (4) being arranged on the hydrophobic export pipeline of steam air heater, pneumatic adjusting
Valve (5), third hand stop valve (6) and the 4th hand stop valve (7), second hand stop valve (4), pneumatic adjusting
Valve (5) and third hand stop valve (6) are sequentially connected in series arrangement on the first leg, and the 4th hand stop valve (7) is arranged second
Branch road, the first branch is in parallel with second branch, drains into condenser (9) for hydrophobic；The pneumatic control valve (5) is with air preheat
The cold side metal wall temperature of device is adjustment signal, adjusts the height of steam air heater water level inside.
2. the rotary air heater of hydrophobic side automatic adjustment according to claim 1, it is characterised in that: steam air heater heats steam
From extracted steam from turbine vapour source (1), hydrophobic export pipeline setting first manual shut-off valve (3) of steam air heater.
3. the rotary air heater of hydrophobic side automatic adjustment according to claim 1, it is characterised in that: the hydrophobic side tune
Section valve includes the third branch in parallel with the first branch and second branch, and the 5th hand stop valve (8) is arranged in third branch road,
When hydrophobic pipeline blocking or the 5th hand stop valve (8) of pneumatic control valve (5) fail-open.
4. the rotary air heater of hydrophobic side automatic adjustment according to claim 1, it is characterised in that: the speed reducer
(16) there are station pointer and dial in surface, and when station pointer is directed toward 0 ° of dial, it is in running order to represent steam air heater,
When station pointer is directed toward 90 ° of dial, represents steam air heater and be in off working state.
5. the rotary air heater of hydrophobic side automatic adjustment according to claim 1, it is characterised in that: the steam air heater changes
Thermal element passes through steam inlet pipe case (12) and all wings using several finned tubes (13) being arranged side by side, the steam inlet pipe (11)
One end of piece pipe (13) is connected, and the other end of all finned tubes (13) passes through hydrophobic bobbin carriage (14) connection drain pipe (15).
6. the rotary air heater of hydrophobic side automatic adjustment according to claim 1, it is characterised in that: steam air heater heat exchange element
Its direction adjusted is fixed in the flange and anti-flange exported using steam inlet pipe (11) import with drain pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153214.0U CN209588087U (en) | 2019-01-29 | 2019-01-29 | A kind of rotary air heater of hydrophobic side automatic adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153214.0U CN209588087U (en) | 2019-01-29 | 2019-01-29 | A kind of rotary air heater of hydrophobic side automatic adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209588087U true CN209588087U (en) | 2019-11-05 |
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ID=68381182
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920153214.0U Active CN209588087U (en) | 2019-01-29 | 2019-01-29 | A kind of rotary air heater of hydrophobic side automatic adjustment |
Country Status (1)
| Country | Link |
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| CN (1) | CN209588087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681904A (en) * | 2019-01-29 | 2019-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of rotary air heater and its adjusting method of hydrophobic side automatic adjustment |
-
2019
- 2019-01-29 CN CN201920153214.0U patent/CN209588087U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681904A (en) * | 2019-01-29 | 2019-04-26 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of rotary air heater and its adjusting method of hydrophobic side automatic adjustment |
| CN109681904B (en) * | 2019-01-29 | 2024-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | Rotary type heater with automatically-adjusted drainage side and adjusting method thereof |
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