CN209706096U - Flue gas-smoke-gas preheater - Google Patents
Flue gas-smoke-gas preheater Download PDFInfo
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- CN209706096U CN209706096U CN201822039061.5U CN201822039061U CN209706096U CN 209706096 U CN209706096 U CN 209706096U CN 201822039061 U CN201822039061 U CN 201822039061U CN 209706096 U CN209706096 U CN 209706096U
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- interface channel
- flue gas
- gas
- seal groove
- smoke
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Abstract
The utility model belongs to the technical field of denitrating flue gas processing equipment, it is related to a kind of flue gas-smoke-gas preheater, it includes shell, with the import interface channel of admission line socket, with the outlet interface channel of outlet pipe socket, the inner sidewall of the import interface channel is bonded with the lateral wall of admission line, the inner sidewall of the outlet interface channel is bonded with the lateral wall of outlet pipe, annular seal groove is offered on the inner sidewall of the import interface channel, stomata is offered on the lateral wall of import interface channel, the stomata is connected to seal groove, stomata is terminated with tracheae backwards to seal groove one, the tracheae is equipped with air pump backwards to stomata one end, the outlet interface channel is arranged referring to import interface channel；The utility model have can stablize, effectively line up junction is sealed, prevent the effect of former flue gas leakage.
Description
Technical field
The utility model relates to the technical fields of denitrating flue gas processing equipment, more particularly, to a kind of flue gas-smoke pre-heating
Device.
Background technique
Waste incinerator can generate a large amount of flue gases during burning away the refuse, because in the rubbish that is incinerated containing big
The S and N of amount need to carry out desulfurization and denitration process just to it to be emitted into so the oxide content of S and N is higher in flue gas
Natural environment.
Flue gas is in desulfurizing tower after desulfurization process, in SCR high temperature denitration.In order to guarantee denitration quality and denitration efficiency,
Need to heat it before flue gas enters SCR, with temperature needed for reaching SCR catalyst denitration, need at this time by
In steam-smoke-gas preheater.For energy saving consideration, it is pre- that flue gas-flue gas can be added before steam-smoke-gas preheater
Hot device preheats low temperature original flue gas using the waste heat of high temperature neat stress after denitration.
Currently, the Chinese patent that notification number is CN201402078Y discloses a kind of gas desulfurization during heat power generation flue gas-
Smoke heat replacing device, it includes upper and lower tube sheet and the heat exchanger tube that is mounted between upper and lower tube sheet, the Single port of all heat exchanger tubes
It is connected with former gas inlet, the another port of all heat exchanger tubes is communicated with former exhanst gas outlet.Space between upper and lower tube sheet is
Neat stress channel is respectively equipped with the import interface channel and outlet interface channel of neat stress, heat exchange at the both ends in neat stress channel
Pipe is attached between heat exchanger tube and upper perforated plate with ring flange and bolt using three-dimensional internal-rib pipe, ring flange and upper perforated plate
Between be equipped with O-ring seal；U-type groove rubber ring is equipped between heat exchanger tube and lower perforated plate.
Flue gas-the smoke heat replacing device is identical as foregoing smoke-smoke-gas preheater principle, and service condition is just the opposite, preceding
Person heats neat stress using former flue gas, and the latter then preheats former flue gas using neat stress, admission line and import
Interface channel is connected, and former flue gas is imported former exhaust gases passes and is preheated, and outlet interface channel is then connected with outlet pipe, will be pre-
Former flue gas after heat is exported out of former exhaust gases passes.
Existing flue gas-smoke-gas preheater has the following deficiencies: the former cigarette for containing a large amount of toxic and harmful gas in order to prevent
Gas leakage is often set in admission line and the junction of import interface channel, the junction of outlet pipe and outlet interface channel
It sets O-ring seal to be sealed, to realize the convenient dismounting of admission line and outlet pipe.But on the one hand, elastic seal ring
Nozzle junction can not be made not have gap, can not be fully sealed；On the other hand, elastic seal ring is easily old in the case of a high temperature
Change, be even more for a long time that can greatly reduce its service life with the oxide interface of S and N, it is too late elastic seal ring replacement often occur
When caused former flue gas leakage.
Utility model content
The purpose of the utility model is to provide a kind of flue gas-smoke-gas preheater, have can stablize, effectively line up
Junction is sealed, and prevents the effect of former flue gas leakage.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of flue gas-smoke-gas preheater, including shell, import interface channel and outlet pipe with admission line socket
The inner sidewall of the outlet interface channel of socket, the import interface channel is bonded with the lateral wall of admission line, and the outlet connects
The inner sidewall for connecting road is bonded with the lateral wall of outlet pipe, offers ring packing on the inner sidewall of the import interface channel
Slot offers stomata on the lateral wall of import interface channel, and the stomata is connected to seal groove, and stomata is terminated backwards to seal groove one
There is tracheae, the tracheae is equipped with air pump backwards to stomata one end, and the outlet interface channel is arranged referring to import interface channel.
By using above-mentioned technical proposal, air pump is set and tracheae conveys air into seal groove, makes the pressure in seal groove
Power is higher than inside and outside shell, constantly has gas to be discharged between import interface channel and admission line in seal groove, prevents in shell
Former flue gas flow between import interface channel and admission line, be also herewith arranged at outlet interface channel, so as to steady
Calmly, effectively line up junction is sealed, and prevents former flue gas from revealing.
The utility model is further arranged to: sidewalls vertical of the seal groove towards shell side, the side wall of the other side
It is obliquely installed, the width of seal groove notch is less than the width of slot bottom.
By using above-mentioned technical proposal, sidewall slope of the seal groove backwards to shell side is arranged, and gas shock is in the side
It is directed to the other side when on wall, so that more gases be made to flow towards enclosure interior, former flue gas is stopped.
The utility model is further arranged to: elastic seal ring, the elastic packing are equipped in the import interface channel
Ring is arranged around admission line, and elastic seal ring is located at seal groove backwards to the side of shell.
By using above-mentioned technical proposal, elastic seal ring is set backwards to shell side in seal groove, is prevented in seal groove
The gas of spilling is moved to outside shell, is flowed it more towards enclosure interior, is stopped to former flue gas；Elastic seal ring
It is arranged at this, because former flue-gas temperature is lower, therefore it is heated to make elastic seal ring, and elastic seal ring is not direct with flue gas
Contact, service life greatly prolong.
The utility model is further arranged to: ring diversion plate is equipped in the shell, it is logical that deflector is located at outlet connection
At road, with outlet interface channel coaxial arrangement, the inner sidewall of deflector and the lateral wall of outlet pipe offset, deflector and shell
Between be equipped with support rod.
By using above-mentioned technical proposal, the inner sidewall of deflector and the lateral wall of outlet pipe offset, in seal groove
When gas flows into shell by the gap between outlet interface channel and outlet pipe, impact on deflector, and along deflector court
It spreads around, avoids the air-flow from liquidating with the high temperature original flue gas for entering outlet pipe, influence the conveying of former flue gas.
The utility model is further arranged to: the inner sidewall of the deflector is set as inclined-plane, and deflector connects towards outlet
The internal diameter for connecting road side is greater than the other side, and outlet pipe is correspondingly provided with chamfering towards deflector one end.
By using above-mentioned technical proposal, the inner sidewall of deflector and the contact surface of escape pipe are inclined-plane, in access outlet
When pipeline, whether it is aligned with deflector without the concern for outlet pipe, if can smoothly penetrate deflector, if tight with deflector
The problems such as closely connected conjunction, need to only be such that outlet pipe and deflector pushes against.
The utility model is further arranged to: the inner sidewall of the deflector is equipped with elastic insert.
By using above-mentioned technical proposal, elastic insert, when the inner sidewall of outlet pipe and deflector offsets, bullet are set
Property bed course stress deformation enable deflector that will effectively overflow gas and shell in seal groove the gap filling between the two
Intracorporal original flue gas is separated.
The utility model is further arranged to: annular baffling slot, institute are offered on the inner sidewall of the import interface channel
The slot bottom for stating baffling slot is equipped at least one piece of outer baffle plate, and the lateral wall of admission line is equipped with baffle plate at least one piece, described
Outer baffle plate and interior baffle plate are coaxially disposed with admission line, and the two is staggered, and the outlet interface channel is referring to import
Interface channel setting.
By using above-mentioned technical proposal, outer baffle plate and interior baffle plate are staggered, and make gas in import interface channel
Flow velocity held stationary between admission line causes former flue gas inversely to pour import connection when partial pressure increase in shell
When between channel and admission line, baffle plate can limit its flow velocity, gather the gas in seal groove by time enough, and
The impact of former flue gas is offset.
In conclusion the advantageous effects of the utility model are as follows:
1, can stablize, effectively line up junction is sealed, prevent former flue gas from revealing；
2, nozzle junction is convenient for disassembly and assembly, it is not necessary that excessive structure is arranged on admission line and outlet pipe.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is in embodiment for embodying the sectional view of import interface channel；
Fig. 3 is in embodiment for embodying the sectional view of outlet interface channel.
In figure, 1, shell；2, import interface channel；3, interface channel is exported；4, heat exchanger tube；5, neat stress import；6, net
Exhanst gas outlet；7, admission line；8, outlet pipe；9, seal groove；10, stomata；11, tracheae；12, air pump；13, elastic packing
Circle；14, deflector；15, support rod；16, elastic insert；17, baffling slot；18, outer baffle plate；19, interior baffle plate；20, connecting rod.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
It referring to Fig.1, is a kind of flue gas-smoke-gas preheater disclosed by the utility model, including shell 1, shell 1 is interior along vertical
Direction be equipped with heat exchanger tube 4,1 top of shell be equipped with neat stress import 5, bottom end be equipped with neat stress outlet 6, the two with heat exchanger tube 4
Connection.1 side of shell is equipped with import interface channel 2, is socketed with admission line 7, and 1 other side of shell is equipped with outlet interface channel 3,
It is socketed with outlet pipe 8.
Referring to Fig. 2, the inner sidewall of import interface channel 2 is bonded with the lateral wall of admission line 7, offers on inner sidewall
Seal groove 9, seal groove 9 in a ring, are coaxially disposed with import interface channel 2, and slot bottom offers stomata 10.Stomata 10 and import
The axis of interface channel 2 is vertical, and is connected to the lateral wall of import interface channel 2.
Referring to Figures 1 and 2, the lateral wall of import interface channel 2 is equipped with tracheae 11, and 11 one end of tracheae and stomata 10 connect
Logical, the other end is connected with air pump 12.Air pump 12 conveys air into stomata 10 by tracheae 11, keeps the air pressure in seal groove 9 high
In in shell 1, constantly there is air-flow to overflow out of seal groove 9, the gap stream between import interface channel 2 and admission line 7
Enter shell 1, the former flue gas in shell 1 is prevented to flow between import interface channel 2 and admission line 7.
Referring to Fig. 2, the width of rebate of seal groove 9 is less than slot bottom width, towards the side wall and its own axis of 1 side of shell
Line is vertical, and the side wall backwards to 1 side of shell is then obliquely installed.When air flows into seal groove 9 from stomata 10, more towards
1 side of shell is mobile, is effectively stopped to the former flue gas in shell 1.
Referring to Fig. 2, be equipped with elastic seal ring 13 between import interface channel 2 and admission line 7, elastic seal ring 13 with into
Feed channel 7 is coaxially disposed, and is located at seal groove 9 backwards to 1 side of shell, prevents the air-flow overflowed in seal groove 9 towards the sidesway
It is dynamic.
Referring to Fig. 2, baffling slot 17 is offered on the inner sidewall of import interface channel 2, baffling slot 17 in a ring, connects with import
It connects road 2 to be coaxially disposed, and is located at seal groove 9 towards 1 side of shell.The slot bottom of baffling slot 17 is connected with two pieces of outer baffle plates 18
With three pieces in baffle plate 19, wherein outer baffle plate 18 is connected directly with slot bottom, and interior baffle plate 19 is erected at baffling by connecting rod 20
In slot 17, offset backwards to the side of 17 slot bottom of baffling slot and the lateral wall of admission line 7.
Referring to Fig. 2, outer baffle plate 18 and interior baffle plate 19 in a ring, and are coaxially disposed with admission line 7, along air inlet pipe
The interlaced arrangement of the length direction in road 7, forms baffling area, and air-flow flow speed stability when by this fluctuates smaller.
Referring to Figure 1 and Figure 3, it exports and also offers seal groove 9 and baffling slot 17 on the inner sidewall of interface channel 3, outside
Tracheae 11 and air pump 12 are then connected on wall, above structure is arranged referring to import interface channel 2.
Referring to Fig. 3, deflector 14 is provided in shell 1, deflector 14 is located at the inlet of outlet interface channel 3, passes through
Support rod 15 and 1 inner wall of shell are affixed, and deflector 14 is in a ring, coaxial with outlet interface channel 3.
Referring to Fig. 3, the inner sidewall of deflector 14 is set as inclined-plane, and the internal diameter towards outlet 3 side of interface channel is larger,
Internal diameter backwards to outlet 3 side of interface channel is smaller, is equipped with elastic insert 16 made of spring steel thereon.Outlet pipe 8
It is equipped with chamfering towards one end in shell 1, and chamfer angle is identical as the tilt angle of 14 inner sidewall of deflector, by outlet pipe
8 when pressing to deflector 14, and lateral wall is pressed on just on elastic insert 16, is offseted with the inner sidewall of deflector 14.
When the gas overflowed out of seal groove 9 is flow to from deflector 14, stopped by deflector 14, airflow direction changes, back
It is spread to the axle center of outlet pipe 8, to be staggered with the high temperature original flue gas for entering outlet pipe 8, high temperature original flue gas is avoided to pour
It exports between interface channel 3 and outlet pipe 8, and speed when high temperature original flue gas is flowed out out of shell 1 is unaffected.
The implementation principle of above-described embodiment are as follows:
Air pump 12 conveys air into seal groove 9 by tracheae 11, increases air pressure in seal groove 9, gas overflowing.It overflows
Gas between import interface channel 2 and admission line 7 gap flowing, flowing to the air-flow inside shell 1 can effectively hinder
Former flue gas in block shell body 1 enters the gap between import interface channel 2 and admission line 7, thus to import interface channel 2
Carry out hermetic seal.Outlet interface channel 3 is also herewith arranged.
The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this
The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical
Within novel protection scope.
Claims (7)
1. a kind of flue gas-smoke-gas preheater including shell (1), the import interface channel (2) being socketed with admission line (7) and goes out
The outlet interface channel (3) of feed channel (8) socket, the inner sidewall of the import interface channel (2) and the outside of admission line (7)
Wall fitting, it is described outlet interface channel (3) inner sidewall be bonded with the lateral wall of outlet pipe (8), it is characterised in that: it is described into
It is offered annular seal groove (9) on the inner sidewall of mouth interface channel (2), offers gas on the lateral wall of import interface channel (2)
Hole (10), the stomata (10) are connected to seal groove (9), and stomata (10) is terminated with tracheae (11) backwards to seal groove (9) one, described
Tracheae (11) is equipped with air pump (12) backwards to stomata (10) one end, and the outlet interface channel (3) sets referring to import interface channel (2)
It sets.
2. flue gas-smoke-gas preheater according to claim 1, it is characterised in that: the seal groove (9) is towards shell (1)
The sidewalls vertical of side, the sidewall slope setting of the other side, the width of seal groove (9) notch are less than the width of slot bottom.
3. flue gas-smoke-gas preheater according to claim 2, it is characterised in that: be equipped in the import interface channel (2)
Elastic seal ring (13), the elastic seal ring (13) are arranged around admission line (7), and elastic seal ring (13) is located at seal groove
(9) backwards to the side of shell (1).
4. flue gas-smoke-gas preheater according to claim 3, it is characterised in that: be equipped with annular water conservancy diversion in the shell (1)
Plate (14), deflector (14) are located at outlet interface channel (3), are coaxially disposed with outlet interface channel (3), deflector (14)
Inner sidewall and the lateral wall of outlet pipe (8) offset, and are equipped with support rod (15) between deflector (14) and shell (1).
5. flue gas-smoke-gas preheater according to claim 4, it is characterised in that: the inner sidewall of the deflector (14) is set
It is set to inclined-plane, the internal diameter of deflector (14) towards outlet interface channel (3) side is greater than the other side, and outlet pipe (8) direction is led
Flowing plate (14) one end is correspondingly provided with chamfering.
6. flue gas-smoke-gas preheater according to claim 5, it is characterised in that: the inner sidewall of the deflector (14) is spread
Equipped with elastic insert (16).
7. flue gas-smoke-gas preheater according to claim 1, it is characterised in that: the inside of the import interface channel (2)
Annular baffling slot (17) is offered on wall, the slot bottom of the baffling slot (17) is equipped at least one piece of outer baffle plate (18), air inlet pipe
The lateral wall in road (7) is equipped with baffle plate (19) at least one piece, and the outer baffle plate (18) and interior baffle plate (19) are and air inlet
Pipeline (7) coaxial arrangement, the two are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039061.5U CN209706096U (en) | 2018-12-05 | 2018-12-05 | Flue gas-smoke-gas preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822039061.5U CN209706096U (en) | 2018-12-05 | 2018-12-05 | Flue gas-smoke-gas preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209706096U true CN209706096U (en) | 2019-11-29 |
Family
ID=68637171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822039061.5U Active CN209706096U (en) | 2018-12-05 | 2018-12-05 | Flue gas-smoke-gas preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209706096U (en) |
-
2018
- 2018-12-05 CN CN201822039061.5U patent/CN209706096U/en active Active
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