CN206257695U - Steam type airheater - Google Patents
Steam type airheater Download PDFInfo
- Publication number
- CN206257695U CN206257695U CN201621322287.0U CN201621322287U CN206257695U CN 206257695 U CN206257695 U CN 206257695U CN 201621322287 U CN201621322287 U CN 201621322287U CN 206257695 U CN206257695 U CN 206257695U
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- Prior art keywords
- low
- housing
- steam
- pressure
- tube bank
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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
Steam type airheater, including housing, the tube bank of several low pressure has been arranged side by side in the housing, one end of the housing is provided with low-pressure steam inlet, the low-pressure steam inlet is located at the upside at the end, the other end is provided with low-pressure steam outlet, the low-pressure steam outlet is located at the downside at the end, the low-pressure steam inlet is connected with one layer of low pressure tube bank topmost, the low-pressure steam outlet is connected with bottom one layer of low pressure tube bank, the bottom of the housing is provided with air intlet, air outlet slit is provided with the top of the housing, exhaust outlet is additionally provided with the top of the housing, the bottom of the housing is additionally provided with drain port, the upper inwall of the low pressure tube bank is provided with several arc convex, gap is left between the arc convex of arbitrary neighborhood, length of the gap more than arc convex.The utility model, improves heat exchanger effectiveness, while the low pressure tube bank superficial dust cycle is long, is convenient to clean.
Description
Technical field
The utility model is related to steam air heater, belongs to technical field of chemical.
Background technology
Air Leakage is always puzzlement biomass fermentation caused by biomass boiler steam air heater pipe dust stratification, corrosion
What the problem of electric enterprise, dust stratification and corrosion were caused leaks out, and causing air-introduced machine to load increases, the air-supply needed for reducing boiler combustion
Amount, reduces efficiency of combustion, and load band is not enough.Often there is steam leakage phenomenon in heater system, and passed through in fine and closely woven aluminium fin
Often block, clear up extremely difficult, boiler combustion and generation load are directly affected when serious.
Utility model content
In order to solve above-mentioned problem, the utility model discloses steam air heater, its concrete technical scheme
It is as follows：
Steam air heater, including housing, have been arranged side by side the tube bank of several low pressure, the housing in the housing
One end be provided with low-pressure steam inlet, the low-pressure steam inlet is located at the upside at the end, and the other end is provided with low-pressure steam
Outlet, the low-pressure steam outlet is located at the downside at the end, and the low-pressure steam inlet is connected with one layer of low pressure tube bank topmost,
The low-pressure steam outlet is connected with bottom one layer of low pressure tube bank, and the bottom of the housing is provided with air intlet, the shell
Air outlet slit is provided with the top of body, exhaust outlet is additionally provided with the top of the housing, the bottom of the housing is additionally provided with thin
The mouth of a river, the upper inwall of the low pressure tube bank is provided with several arc convex, and gap is left between the arc convex of arbitrary neighborhood,
Length of the gap more than arc convex.
There is row's arc convex in every low pressure tube bank, and arc convex is located at the top that low pressure restrains inwall.
Half of the height of the arc convex less than low pressure bundle diameters.
Neighbouring low pressure tube bank head and the tail two ends order insertion.
The two ends of the low pressure tube bank are respectively arranged with tube bank fixed plate, and the two ends of all low pressure tube banks both pass through corresponding end
Tube bank fixed plate.
The low-pressure steam inlet towards housing top, the low-pressure steam outlet towards housing lower section.
Pressure gauge connection is additionally provided with the top of the housing.
The method for installing steam-air preheater, comprises the following steps：
（1）Choose support：A support is chosen, the length when width of support is more than housing horizontal positioned, support is stood
After on the ground, the top horizontal of support；
（2）Steam-air preheater is installed：Steam-air preheater level is placed in the top of support, support energy
It is enough to fix steam-air preheater so that the low-pressure steam inlet of steam-air preheater towards support it is vertical on
Side, the low-pressure steam outlet of the steam-air preheater towards support vertical lower, now, steam-air preheater
Air intake towards support vertical lower, the vertical direction of the air outlet slit of steam-air preheater towards support；
（3）Connect air access tube：Air access tube is installed in the air intlet of steam-air preheater, air is passed through
Pipe is connected with the flue in workshop, for towards the flue gas that workshop is passed through in air access tube；
（4）Air outlet conduits are installed：Air outlet conduits, the air are installed in the air outlet slit of steam-air preheater
Efferent duct is in flare form, and air outlet conduits are from itself and air outlet slit installation end towards the other end gradually enlarging；
（5）Insertion pressure gauge：Pressure gauge is inserted in the pressure gauge connection of steam-air preheater.
The step（4）In air outlet conduits be provided with thermometer boss, be inserted with thermometer in the thermometer boss.
The step（3）A transition conduit is also equipped between middle air access tube and air intlet, the transition conduit
Open top is consistent with air intlet, and is docked with air intlet sealing, and the bottom opening of transition conduit is consistent with air access tube,
And be passed through the seal of tube with air and dock.
The air outlet conduits and transition conduit are provided with manhole.
Operation principle of the present utility model is：
The utility model, the boiler smoke in biomass workshop is passed into steam-air preheater from air access tube,
Heat exchange is carried out with low-pressure steam in steam-air preheater, is then sent out from air outlet conduits, low-pressure steam is from low
Steam inlet is pressed to enter into low pressure tube bank, low-pressure steam is restrained by low pressure and discharged from low-pressure steam outlet, in steam and sky
During gas heat exchange, some water vapours can be produced in housing, eventually be condensed into water, the water is discharged from drain port, led to
Air pressure in excess pressure table monitoring housing, when air pressure is too high, can control the air pressure in housing by exhaust outlet.
The beneficial effects of the utility model are：
The utility model, low-pressure steam enters from steam air heater low pressure tube bank topmost, low-pressure steam according to
It is secondary to be restrained by all of low pressure, enter eventually into bottom low pressure tube bank, from low-pressure steam outlet discharge, and air from
A bottom low pressure tube bundle flow enters, and sequentially passes through all of low pressure tube bank, goes out from a uppermost low pressure tube bundle flow, air
Sufficient heat exchange can be carried out with steam, heat exchanger effectiveness is improved, while the low pressure tube bank superficial dust cycle is long, is easy to clear
Reason.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the cross-sectional view of low pressure tube bank,
Fig. 3 is the A direction views of Fig. 1,
Fig. 4 is the B direction views of Fig. 1,
Fig. 5 is the view after the utility model is installed with support,
Reference numerals list：1-housing, the tube bank of 2-low pressure, 3-tube bank fixed plate, 4-air access tube, 5-support,
6-transition conduit, 7-air outlet conduits, 8-arc convex, N1-air intlet, N2-air outlet slit, N3-low-pressure steam enters
Mouthful, N4-low-pressure steam outlet, N5-drain port, N6-exhaust outlet, M1-manhole, P1-pressure gauge connection.
Specific embodiment
With reference to the accompanying drawings and detailed description, the utility model is further elucidated.It should be understood that following specific embodiment parties
Formula is merely to illustrate the utility model rather than limits scope of the present utility model.
Arrow in Fig. 1 represents the flow direction of air, this steam air heater visible with reference to accompanying drawing, including housing
1, several low pressure tube bank 2 has been arranged side by side in the housing 1, one end of the housing 1 is provided with low-pressure steam inlet N3, institute
Upsides of the low-pressure steam inlet N3 positioned at the end is stated, the other end is provided with low-pressure steam outlet N4, the low-pressure steam outlet N4
Positioned at the downside at the end, the bottom of the housing 1 is provided with air intlet N1, and the top of the housing 1 is provided with air outlet slit
N2, the top of the housing 1 is additionally provided with exhaust outlet N6, and the bottom of the housing 1 is additionally provided with drain port N5.This practicality is new
Type, housing 1 is used for the heat exchange space that the utility model is installed and forms internal closing, and low-pressure steam is from of the present utility model
Top enters, and from bottom discharge, low-pressure steam have passed through all of low pressure tube bank 2, and the flow direction of air is then from this practicality
New bottom enters, and from bottom discharge, air and low-pressure steam reverse flow being capable of sufficient heat exchanges.
Fig. 2 is the cross-sectional view of low pressure tube bank, visible with reference to accompanying drawing, if the upper inwall of low pressure tube bank is provided with
Dry arc convex 8, leaves gap, length of the gap more than arc convex between the arc convex 8 of arbitrary neighborhood.Every
There is row's arc convex 8 in low pressure tube bank, and arc convex 8 is located at the top that low pressure restrains inwall.The arc convex 8
Highly less than the half of low pressure bundle diameters.Arc convex 8 does not influence low pressure to restrain the flowing of interior condensed water, while can be to low
Pressure steam plays unhurried current effect, allows low-pressure steam to flow slack-off, increases heat exchanger time.
The neighbouring low pressure restrains 2 head and the tail two ends order insertions.Ensure that low-pressure steam has a unobstructed flowing
Channel.
The two ends of the tube bank are respectively arranged with tube bank fixed plate 3, and the two ends of all tube banks both pass through the tube bank of corresponding end
Fixed plate 3.Tube bank fixed plate 3 can maintain static all of tube bank, it is ensured that use safety.
Towards the top of housing 1, the low-pressure steam outlet N4 is towards the lower section of housing 1 for the low-pressure steam inlet N3.Low pressure
Steam can be smoothly flowed therein in low pressure tube bank 2.
The top of the housing 1 is additionally provided with pressure gauge connection P1.Pressure gauge is inserted in pressure gauge connection P1, shell is monitored
Pressure condition in body 1, it is ensured that use safety.
The method for installing steam-air preheater, comprises the following steps：
（1）Choose support 5：Choose a support 5, the length when width of support 5 is more than 1 horizontal positioned of housing, support 5
After standing on the ground, the top horizontal of support 5；
（2）Steam-air preheater is installed：Steam-air preheater level is placed in the top of support 5, support 5
Steam-air preheater can be fixed so that the low-pressure steam inlet N3 of steam-air preheater is towards support 5
Vertical direction, the low-pressure steam outlet N4 of the steam-air preheater towards support 5 vertical lower, now, steam-
, towards the vertical lower of support 5, the air outlet slit N2 of steam-air preheater is towards support 5 for the air intake of air preheater
Vertical direction；
（3）Connect air access tube 4：Air access tube 4, air are installed in the air intlet N1 of steam-air preheater
Access tube 4 is connected with the flue in workshop, for towards the flue gas that workshop is passed through in air access tube 4；
（4）Air outlet conduits 7 are installed：Air outlet conduits 7 are installed in the air outlet slit N2 of steam-air preheater, it is described
Air outlet conduits 7 are in flare form, and air outlet conduits 7 are from itself and air outlet slit N2 installation ends towards the other end gradually enlarging；
（5）Insertion pressure gauge：Pressure gauge is inserted in the pressure gauge connection P1 of steam-air preheater.
This installation method so that steam-air preheater can be used safely, the flue gas with workshop fully carries out hot friendship
Change, and reduce dust stratification, improve the cycle of maintenance.
The step（4）In air outlet conduits 7 be provided with thermometer boss, be inserted with temperature in the thermometer boss
Meter.Temperature by the air discharged after steam-air preheater heat exchange is monitored by thermometer.
The step（3）A transition conduit 6, the transition are also equipped between middle air access tube 4 and air intlet N1
The open top of pipe 6 is consistent with air intlet N1, and is docked with air intlet N1 sealings, the bottom opening and air of transition conduit 6
Access tube 4 is consistent, and is docked with the sealing of air access tube 4.By transition conduit 6, the velocity variations situation of flow of flue gas is buffered, made
Obtaining the utility model has the use environment of stabilization.
The air outlet conduits 7 and transition conduit 6 are provided with manhole M1.Manhole M1 is used to observe steam-sky for operator
The dust stratification situation of air preheater, and other situations in steam-air preheater.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned technological means, also
Including being combined constituted technical scheme by above technical characteristic.
With above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (7)
1. steam air heater, it is characterized in that including housing, the tube bank of several low pressure, institute have been arranged side by side in the housing
The one end for stating housing is provided with low-pressure steam inlet, and the low-pressure steam inlet is located at the upside at the end, and the other end is provided with low
Pressure steam (vapor) outlet, the low-pressure steam outlet is located at the downside at the end, the low-pressure steam inlet and one layer of low-voltage tube topmost
Beam is connected, and the low-pressure steam outlet is connected with bottom one layer of low pressure tube bank, and the bottom of the housing is provided with air intlet,
Air outlet slit is provided with the top of the housing, exhaust outlet is additionally provided with the top of the housing, the bottom of the housing also sets
Drain port is equipped with, the upper inwall of the low pressure tube bank is provided with several arc convex, is stayed between the arc convex of arbitrary neighborhood
There are gap, length of the gap more than arc convex.
2. steam air heater according to claim 1, it is characterized in that having row's arc convex in every low pressure tube bank
Rise, and arc convex is located at the top that low pressure restrains inwall.
3. steam air heater according to claim 2, it is characterized in that the height of the arc convex is less than low-voltage tube
The half of beam diameter.
4. steam air heater according to claim 3, it is characterized in that neighbouring low pressure tube bank head and the tail two
End order insertion.
5. steam air heater according to claim 1, it is characterized in that the two ends of low pressure tube bank are respectively arranged with
Tube bank fixed plate, the two ends of all low pressure tube banks both pass through the tube bank fixed plate of corresponding end.
6. steam air heater according to claim 1, it is characterized in that the low-pressure steam inlet is towards on housing
Side, the low-pressure steam outlet towards housing lower section.
7. steam air heater according to claim 1, it is characterized in that being additionally provided with pressure gauge at the top of the housing
Interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322287.0U CN206257695U (en) | 2016-12-05 | 2016-12-05 | Steam type airheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621322287.0U CN206257695U (en) | 2016-12-05 | 2016-12-05 | Steam type airheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257695U true CN206257695U (en) | 2017-06-16 |
Family
ID=59027362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621322287.0U Expired - Fee Related CN206257695U (en) | 2016-12-05 | 2016-12-05 | Steam type airheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257695U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050536A (en) * | 2017-11-30 | 2018-05-18 | 江苏中科重工股份有限公司 | Low-temperature air preheater |
| CN109469909A (en) * | 2018-09-27 | 2019-03-15 | 上海双木散热器制造有限公司 | Control the steam air heater of dioxin concentration |
-
2016
- 2016-12-05 CN CN201621322287.0U patent/CN206257695U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108050536A (en) * | 2017-11-30 | 2018-05-18 | 江苏中科重工股份有限公司 | Low-temperature air preheater |
| CN108050536B (en) * | 2017-11-30 | 2019-10-29 | 江苏中科重工股份有限公司 | Low-temperature air preheater |
| CN109469909A (en) * | 2018-09-27 | 2019-03-15 | 上海双木散热器制造有限公司 | Control the steam air heater of dioxin concentration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170616 Termination date: 20171205 |