CN204787235U - A system's device of high temperature cleaning is hot -blast is provided - Google Patents
A system's device of high temperature cleaning is hot -blast is provided Download PDFInfo
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- CN204787235U CN204787235U CN201420860212.2U CN201420860212U CN204787235U CN 204787235 U CN204787235 U CN 204787235U CN 201420860212 U CN201420860212 U CN 201420860212U CN 204787235 U CN204787235 U CN 204787235U
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Abstract
The utility model discloses a system's device of high temperature cleaning is hot -blast is provided, the device includes outer frame (1), outer frame (1) lower part sets up high temperature heat transfer room (3), the one end of high temperature heat transfer room (3) is connected combustor (4) or is directly adopted flange and high temperature flue gas pipeline to be connected, the other end mixes plenum (15) with the one -level and is connected, the one -level is mixed plenum (15) and is connected through high temperature ripple heat transfer board (5) and second grade muddy plenum (6), the second grade mixes plenum (6) and links to each other with top layer bellows (11) through low temperature needle -like heat transfer board (7). This device adopts indirect heat transfer mode, compact structure, and the convection zone adopts the heat exchange assemblies of the different runners of different patterns, and unit volume heat transfer area is big, and the thermal efficiency is high, can provide the clean air of the high temperature more than 600 DEG C, and can be in safety and stability operation under the high temperature working condition.
Description
Technical field
The utility model relates to a kind of hot air apparatus fluid being carried out to indirect, refers more particularly to the high-temperature hot-air operating mode of gas converting heat temperature more than 600 DEG C, is particularly suitable for providing the combustion-supporting and clean gas of high-temperature air burning to carry out drying materials heating.
Background technology
The high-temperature hot-air device many employings radiation sleeve pipe encountered in iron and steel heat treatment and mineral wool processing industry at present and the combined type heat-exchanger rig of heat convection assembly, structure mostly is through type mechanism, namely front end adopts radiation sleeve pipe, end adopts tube type heat exchange assembly, equipment is heavy and floor space is large, and air exit temp is low, and inner air distribution structure is unreasonable, equipment local easily overtemperature, especially orifice plate easily produces problem of stress concentration.Along with the exploitation of following shale gas technology, and the becoming increasingly conspicuous of recent environmental problems, " coal changes gas " brings into schedule in a lot of industry, and often in transformation process, all faces the problem of place space constraint and temperature increase bottleneck.
Summary of the invention
The utility model is for solving the technical problem existing for above-mentioned prior art, the combined system device that a kind of compact provides the clean hot blast of high temperature is disclosed, this device overcomes the heaviness of existing equipment existence while providing the high temperature air of more than 600 DEG C and floor space is large, inner air distribution structure is unreasonable, equipment local easily overtemperature, especially orifice plate easily produces problem of stress concentration.
The utility model is achieved by the following technical solution:
A kind of system and device that the clean hot blast of high temperature is provided, it comprises outside framework, outside framework bottom arranges high temperature Heat Room, one end of high temperature Heat Room connects combustor or directly adopts flange to be connected with high-temperature flue gas pipeline, the other end is connected with one-level wind mixed chamber, one-level wind mixed chamber is connected with secondary wind mixed chamber by high temperature corrugated heat-exchange plate, and secondary wind mixed chamber is connected with top layer bellows by low temperature needle-like heat exchanger plates.
High temperature Heat Room forms by central high-temperature medium passage with around the cold medium channel around it, in the middle of central authorities' high-temperature medium passage, node cylinder is set, two ends are high temperature Heat Room studded tube, and in the outside of high temperature Heat Room, cold medium channel two ends arrange spiral deflector.Node cylinder is for solving the weld seam drawing crack problem that the thermal stress of metal causes under worst hot case, and it is thin that studded tube makes whole heating surface take full advantage of the initial segment of fluid boundary layer, and the advantage that thermal resistance is little, strengthens the forced convertion of cold medium channel.The spiral deflector that cold medium channel two ends are arranged in outside, increases range ability and the running time of cold medium.Away from the side of combustor interface end in high temperature Heat Room, the air outlet slit communicated with cold medium channel is set with the cold medium channel place of communicating.
Smoke evacuation air-introduced machine is arranged at outside framework top, and connects top layer bellows by exhanst gas outlet pipeline.Air blast is arranged at outside framework top, and air blast connects low temperature needle-like heat exchanger plates by connecting air inlet duct.
Air blast, combustor and air exit temp sensor chain, air blast adopt VFC, chain with air exit temp sensor, combustor can regulate by adoption rate, determines according to air exit temp, and alarm temperature sensor is set in one-level wind mixed chamber, ensure device interior not overtemperature.Outside framework top air-introduced machine, one-level wind mixed chamber comprises deflection plate, honeycomb distribution grid, automatic control storm door, secondary wind mixed chamber arranges wind pressure sensor, electric operator and this pressure-measuring-point of air-introduced machine and automatic control storm door are chain, and air-introduced machine blast requires to mate with high temperature Heat Room operating pressure, ensure that whole device runs at micro-vacuum state.
The utility model high temperature section heat convection assembly adopts two-way high temperature corrugated heat-exchange plate arranged in parallel, the length on the long limit of plate is 2.5-3 times of bond length, the long side weld of the heat exchanger plates that two panels is adjacent connects formation heat exchange unit, high-temperature flue gas chamber is formed in the middle of heat exchange unit, and between two adjacent heat exchange units, two minor faces of each relative heat exchanger plates weld together, between adjacent two heat exchange units, form cold medium channel, and namely plate adopts the flanging mode of " two just two anti-".Ripple extension direction and the high-temperature flue gas of high temperature corrugated heat-exchange plate move towards consistent, ensureing that the resistance of flue gas when flowing through high temperature section is unlikely to excessive, reducing the blast requirement of smoke exhaust fan, and can the part thermal expansion of absorbing material when high temperature.Wave height is 7 ~ 10mm, left and right two panels heat exchanger plates ripple inversion-symmetric is arranged, during such guarantee two panels adjacent heat exchanger plates welding assembly, in the heat medium flow channel that about two long limits of the inverted plate of ripple are formed when assembly welding, all there is the self-supporting point of two strong points the both sides of each crest, ensure rigidity when equipment is hot.Same reason, when welding minor face and forming cold medium channel, the concave surface of above-mentioned plate and the concave surface of another plate also can form self supporting structure.
Low-temperature zone heat convection assembly adopts two-way low temperature needle-like heat exchanger plates arranged in parallel, the length on the long limit of plate is 2.5-3 times of bond length, the long side weld of the heat exchanger plates that two panels is adjacent connects formation heat exchange unit, high-temperature flue gas chamber is formed in the middle of heat exchange unit, and between two adjacent heat exchange units, two minor faces of each relative heat exchanger plates weld together, between adjacent two heat exchange units, form cold medium channel, and namely plate adopts the flanging mode of " two just two anti-".This plate is needle form, and needle-like wave height is 3 ~ 5mm.During two panels plate cooperation assembling, cold medium channel forms three subregions, and namely aciculiform lines is distributed in three, the left, center, right district of plate, and two groups of plate minor face welding form cold medium channel, all needle-like lines can form the strong point at crosspoint place, meet the rigid requirements of plate assembly.Between three districts, electric resistance welding L-type flanged plate is formed and cuts off, and partition is highly the wave height of 2 times.Like this, air enters high temperature plate at aciculiform plate after three backhauls, high-temperature flue gas is when flowing through this assembly, along with the reduction gas specific volume of temperature significantly reduces, by this needle-like plate, make full use of the feature that medium side interlayer the initial segment thermal resistance is little, heat convection effect is strengthened in abundant disturbance.
High temperature corrugated heat-exchange plate and low temperature needle-like heat exchanger plates all adopt the heat exchange mode of cross cross-flow, it is 14-20mm that high temperature corrugated heat-exchange plate current leads to spacing, preferred 20mm, low temperature needle-like heat exchanger plates circulation spacing is 6-10mm, from top to bottom, along with hot fluid temperature reduces gradually, material can reduce according to grade heat-exchanging component, as high temperature section uses 310S stainless steel or 316L stainless steel, low-temperature zone uses 304 stainless steels or 201 stainless steel steel.Fluid passage spacing reduces successively, then counterpiece number increases gradually, as shown in Figure 2.
One-level wind mixed chamber side is provided with alarm temperature sensor and automatic control storm door, arranges honeycomb distribution grid between automatic control storm door and one-level wind mixed chamber.
One-level wind mixed chamber and high temperature Heat Room, between one-level wind mixed chamber and high temperature corrugated heat-exchange plate, junction all arranges excessive expansion and saves, and can arrange deflector therein.Combustor adoption rate regulates, and determines according to air exit temp.
Good effect of the present utility model is compared with the prior art: the flue-gas temperature that the high-temperature flue gas entered or gas-firing obtain is 1500 DEG C about-1600 DEG C, and through this flow process, exhaust gas temperature is lower than 100 DEG C; And each device arrangement is reasonable, adopt indirect heat exchange mode, compact conformation, less by more than 1/2 than existing same device floor space, convection section adopts the heat-exchanging component of the different runner of different types, and heat exchange area per unit volume is large, and convective heat-transfer coefficient can reach 45W/ (m
2dEG C) more than, the thermal efficiency is high, can provide the high temperature pure air of more than 600 DEG C; Device interior has done many places safeguard measure, effectively solves the thermal stress concentration problem of worst hot case, can at safe and stable operation under worst hot case, extension device service life; Equipment adopts blower fan to adopt variable frequency adjustment, and combustor adoption rate regulates, and sets up manual adjustments air door, and regulating measure is enriched; Utilize gaseous fuel as thermal source, clean environment firendly, smoke evacuation can directly be discharged.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is high temperature Heat Room and the heat-exchanging component sectional view of the utility model device;
In Fig. 1: 1 is outside framework, 2 is combustor reducer pipe, 3 is high temperature Heat Room, 4 is combustor, 5 is high temperature corrugated heat-exchange plate, 6 is secondary wind mixed chamber, 6-1 is pressure sensor, 7 is low temperature needle-like heat exchanger plates, 8 is air intlet, 9 is air air-supply air blast, 10 is flue gas smoke evacuation air-introduced machine, 11 is exhanst gas outlet pipeline, 12 is top layer bellows, 13 is excessive expansion joint, 14-1 is automatic control storm door, 14-2 is honeycomb distribution grid, 15 is one-level wind mixed chamber, 16 is alarm temperature sensor, 17 is air outlet slit, 18 is high temperature Heat Room studded tube, 19 is spiral deflector, 20 is node cylinder.
Fig. 3-1 to harden composition for high temperature corrugated heat-exchange.
Fig. 3-2 to turn clockwise 180 ° of structure charts for high temperature corrugated heat-exchange plate.
Fig. 3-3 two high temperature corrugated heat-exchange plate assembly weldings form self supporting structure figure.
In figure, the round dot in Fig. 3-3 is self-supporting point.
Fig. 4-1 low temperature needle-like heat exchanger plates structure chart.
Fig. 4-2 low temperature needle-like heat exchanger plates stands up and rotate 180 ° of structure charts in paper.
Fig. 4-3 two low temperature needle-like heat exchanger plates assembly weldings form self supporting structure figure.
In figure, 21 is that " L " type flanging cuts off.
Detailed description of the invention
Be described in detail providing the system and device of the clean hot blast of high temperature below by example with reference.
The system and device that the clean hot blast of high temperature is provided of the present embodiment, its front sectional view as shown in Figure 1, comprise outside framework 1, outside framework 1 bottom arranges high temperature Heat Room 3, one end of high temperature Heat Room 3 connects combustor 4 or directly adopts flange to be connected with high-temperature flue gas pipeline, and the other end is then connected with one-level wind mixed chamber 15; One-level wind mixed chamber 15 is connected with secondary wind mixed chamber 6 by middle high temperature corrugated heat-exchange plate 5, and secondary wind mixed chamber 6 is connected with top layer bellows 11 by low temperature needle-like heat exchanger plates 7, and the exhanst gas outlet pipeline finally by framework 1 top is connected with smoke evacuation air-introduced machine 10.Air blast 9 and air inlet duct 8 are also positioned at outside framework 1 top simultaneously, and air blast 9 connects low temperature needle-like heat exchanger plates 7 by the pipeline 8 connecting air intlet.Smoke evacuation air-introduced machine 10 is arranged at outside framework 1 top, and connects top layer bellows 12 by exhanst gas outlet pipeline 11.
High temperature Heat Room 3 forms by central high-temperature medium passage with around the cold medium channel around it, in the middle of central authorities' high-temperature medium passage, node cylinder 20 is set, two ends are high temperature Heat Room studded tube 18, and spiral deflector 19 is set at high temperature Heat Room 3 outside cold medium channel two ends, in the side of high temperature Heat Room 3 inside away from combustor interface end, air outlet slit 17 is set with the cold medium channel place of communicating; One-level wind mixed chamber 15 side is provided with alarm temperature sensor 16 and automatic control storm door 14-1, arranges honeycomb distribution grid 14-2 between automatic control storm door 14-1 and one-level wind mixed chamber 15.One-level wind mixed chamber 15 and high temperature Heat Room 3, between one-level wind mixed chamber 15 and high temperature corrugated heat-exchange plate 5, junction all arranges excessive expansion and saves 13, and arranges deflector therein.
High temperature section heat convection assembly adopts two-way high temperature corrugated heat-exchange plate arranged in parallel, the length on the long limit of plate is 2.5-3 times of bond length, the long side weld of the heat exchanger plates that two panels is adjacent connects formation heat exchange unit, high-temperature flue gas chamber is formed in the middle of heat exchange unit, and between two adjacent heat exchange units, two minor faces of each relative heat exchanger plates weld together, between adjacent two heat exchange units, form cold medium channel, and namely plate adopts the flanging mode of " two just two anti-".Ripple extension direction and the flue gas of high temperature corrugated heat-exchange plate 5 move towards consistent, wave height is 7 ~ 10mm, left and right two panels heat exchanger plates ripple inversion-symmetric is arranged (as shown in Fig. 3-1,3-2,3-3, ripple dash area is perpendicular to paper outwardly convex, ripple blank parts is perpendicular to paper indent inwards,), during such guarantee two panels adjacent heat exchanger plates welding assembly, in the heat medium flow channel that about two long limits of the inverted plate of ripple are formed when assembly welding, all there is the self-supporting point of two strong points the both sides of each crest.Equally, when welding minor face and forming cold medium channel, the concave surface of above-mentioned plate and the concave surface of another plate also form self supporting structure.
Low-temperature zone heat convection assembly adopts two-way low temperature needle-like heat exchanger plates arranged in parallel, the length on the long limit of plate is 2.5-3 times of bond length, the long side weld of the heat exchanger plates that two panels is adjacent connects formation heat exchange unit, high-temperature flue gas chamber is formed in the middle of heat exchange unit, and between two adjacent heat exchange units, two minor faces of each relative heat exchanger plates weld together, between adjacent two heat exchange units, form cold medium channel, and namely plate adopts the flanging mode of " two just two anti-".Low temperature needle-like heat exchanger plates 7 is needle form, needle-like wave height is that 3 ~ 5mm is (as Fig. 4-1, shown in 4-2 and 4-3, needle-like dash area is perpendicular to paper outwardly convex, needle-like colourless part is perpendicular to paper indent inwards), during two mould punchings plate out (see Fig. 4-1 and Fig. 4-2) cooperation assembling, cold medium channel forms three subregions, namely aciculiform lines is distributed in three, the left, center, right district of plate, between each district, electric resistance welding L-type is cut off, partition is highly the wave height of 2 times, and all needle-like lines form self-supporting point at crosspoint place.
High temperature section heat convection assembly and low-temperature zone heat convection assembly all adopt the heat exchange mode of cross-flow, heat exchange plate all adopts the mode of self-supporting, it is 14-20mm that high temperature corrugated heat-exchange plate current leads to spacing, preferred 20mm, low temperature needle-like heat exchanger plates circulation spacing is 6-10mm, from top to bottom, along with hot fluid temperature reduces gradually, material rate reduces, and high temperature section uses 310S stainless steel or 316L stainless steel, and low-temperature zone uses 304 stainless steels or 201 stainless steel steel.Fluid passage spacing reduces successively, then counterpiece number increases gradually, as shown in Figure 2.
The course of work of this hot air apparatus is, natural gas is lighted at high temperature Heat Room by combustor, the high-temperature flue gas produced is successively by high temperature Heat Room, one-level wind mixed chamber, high temperature corrugated assembly, secondary wind mixed chamber, low temperature needle-like assembly, top layer bellows, the flue gas of last low temperature is discharged outdoor by smoke evacuation air-introduced machine.Meanwhile, the air of cleaning is sent into from superposed air inlet by the air blast at top, contrary with the flow process of heat smoke, cold and hot medium forms the type of flow of adverse current, hot-air is got rid of from air outlet slit, the while that hot blast temperature can being added to sufficiently high by assurance function equipment, exhaust gas temperature is enough low, reduces the flue gas loss of equipment.
Claims (11)
1. one kind provides the system and device of the clean hot blast of high temperature, it comprises outside framework (1), it is characterized in that: outside framework (1) bottom arranges high temperature Heat Room (3), one end of high temperature Heat Room (3) connects combustor (4) or directly adopts flange to be connected with high-temperature flue gas pipeline, the other end is connected with one-level wind mixed chamber (15), one-level wind mixed chamber (15) is connected with secondary wind mixed chamber (6) by high temperature corrugated heat-exchange plate (5), and secondary wind mixed chamber (6) is connected with top layer bellows (11) by low temperature needle-like heat exchanger plates (7).
2. the system and device that the clean hot blast of high temperature is provided according to claim 1, it is characterized in that: high temperature Heat Room (3) forms by central high-temperature medium passage with around the cold medium channel around it, arrange node cylinder (20) in the middle of central authorities' high-temperature medium passage, two ends are high temperature Heat Room studded tube (18).
3. the system and device providing the clean hot blast of high temperature according to claim 1, is characterized in that: outside at high temperature Heat Room (3), cold medium channel two ends arrange spiral deflector (19).
4. the system and device providing the clean hot blast of high temperature according to claim 1, is characterized in that: in the side of high temperature Heat Room (3) away from combustor interface end, arrange air outlet slit (17) with the cold medium channel place of communicating.
5. the system and device providing the clean hot blast of high temperature according to claim 1, is characterized in that: smoke evacuation air-introduced machine (10) is arranged at outside framework (1) top, and connects top layer bellows (12) by exhanst gas outlet pipeline (11); Air blast (9) is arranged at outside framework (1) top, and air blast (9) connects low temperature needle-like heat exchanger plates (7) by the pipeline connecting air intlet (8).
6. the system and device that the clean hot blast of high temperature is provided according to claim 1, it is characterized in that: ripple extension direction and the high-temperature flue gas of high temperature corrugated heat-exchange plate (5) move towards consistent, wave height is 7 ~ 10mm, left and right two panels heat exchanger plates ripple is inverted and is arranged symmetrically with, two panels adjacent heat exchanger plates welding assembly, all there is the self-supporting point of two strong points the both sides of each crest.
7. the system and device that the clean hot blast of high temperature is provided according to claim 1, it is characterized in that: low temperature needle-like heat exchanger plates (7) is needle form, needle-like wave height is 3 ~ 5mm, two panels plate soldering group dresses up the cold medium channel with three subregions, between each district, electric resistance welding L-type is cut off, partition is highly the wave height of 2 times, and all needle-like lines form self-supporting point at crosspoint place.
8. the system and device providing the clean hot blast of high temperature according to claim 1, is characterized in that: high temperature corrugated heat-exchange plate (5) circulation spacing is 14-20mm, preferred 20mm, and low temperature needle-like heat exchanger plates (7) circulation spacing is 6-10mm.
9. the system and device providing the clean hot blast of high temperature according to claim 8, is characterized in that: high temperature corrugated heat-exchange plate (5) circulation spacing is 20mm.
10. the system and device that the clean hot blast of high temperature is provided according to claim 1, it is characterized in that: one-level wind mixed chamber (15) side is provided with alarm temperature sensor (16) and automatic control storm door (14-1), arranges honeycomb distribution grid (14-2) between automatic control storm door (14-1) and one-level wind mixed chamber (15).
11. system and devices that the clean hot blast of high temperature is provided according to claim 1, it is characterized in that: one-level wind mixed chamber (15) and high temperature Heat Room (3), between one-level wind mixed chamber (15) and high temperature corrugated heat-exchange plate (5), junction all arranges excessive expansion and saves (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860212.2U CN204787235U (en) | 2014-12-30 | 2014-12-30 | A system's device of high temperature cleaning is hot -blast is provided |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860212.2U CN204787235U (en) | 2014-12-30 | 2014-12-30 | A system's device of high temperature cleaning is hot -blast is provided |
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| Publication Number | Publication Date |
|---|---|
| CN204787235U true CN204787235U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860212.2U Withdrawn - After Issue CN204787235U (en) | 2014-12-30 | 2014-12-30 | A system's device of high temperature cleaning is hot -blast is provided |
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| CN (1) | CN204787235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566957A (en) * | 2014-12-30 | 2015-04-29 | 南京宜热纵联节能科技有限公司 | System device for supplying high-temperature clean hot air |
| CN113834108A (en) * | 2021-11-05 | 2021-12-24 | 吉林建筑大学 | Device with heat recovery and high-efficient purification |
-
2014
- 2014-12-30 CN CN201420860212.2U patent/CN204787235U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566957A (en) * | 2014-12-30 | 2015-04-29 | 南京宜热纵联节能科技有限公司 | System device for supplying high-temperature clean hot air |
| CN104566957B (en) * | 2014-12-30 | 2017-03-29 | 南京宜热纵联节能科技有限公司 | A kind of system and device that high temperature cleaning hot blast is provided |
| CN113834108A (en) * | 2021-11-05 | 2021-12-24 | 吉林建筑大学 | Device with heat recovery and high-efficient purification |
| CN113834108B (en) * | 2021-11-05 | 2024-02-20 | 吉林建筑大学 | Device with heat recovery and high-efficient purification |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20170329 |
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| AV01 | Patent right actively abandoned |