CN203797938U - Device for generating circulating hot air - Google Patents
Device for generating circulating hot air Download PDFInfo
- Publication number
- CN203797938U CN203797938U CN201420177820.3U CN201420177820U CN203797938U CN 203797938 U CN203797938 U CN 203797938U CN 201420177820 U CN201420177820 U CN 201420177820U CN 203797938 U CN203797938 U CN 203797938U
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- China
- Prior art keywords
- combustion
- air
- combustion furnace
- heat
- downstream
- 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 - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 13
- 239000002737 fuel gas Substances 0.000 claims description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 239000008393 encapsulating agent Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 abstract 1
- 239000000835 fiber Substances 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 26
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052755 nonmetal Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000015111 chews Nutrition 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Air Supply (AREA)
Abstract
The utility model relates to a device for generating circulating hot air. The device comprises a fan, a combustion furnace connected with the downstream of the fan, a register, an exhaust duct and a chimney, wherein the combustion furnace in the device is formed by combining at least two independent gas combustion furnaces; the combustion furnaces are connected through flanges; a sealing material of aluminum silicate sealed fiber rope is arranged between the flanges. According to the device for generating circulating hot air, disclosed by the utility model, by adoption a heating module unit combination consisting of multiple gas combustion furnaces, combustion in each combustion furnace can be full due to the structure, the defects in the prior art can be overcome, heating units in a corresponding number can be gathered according to the load requirements, and high-power heating needs are met.
Description
Technical field
The utility model relates to a kind of circulating air process units, say be definitely a kind of be applied to chemical industry or other with in hot industry, utilize hot blast as thermal source for the device of heat energy is provided with hot equipment.
Background technology
In chemical industry is produced, the demand that is all accompanied by heat energy such as dry of chemical reaction process and material.The effect of circulating air production system device is exactly to produce the hot equipment of the warm-air supply of certain operating mode, after release heat, loops back and heats, and reaches and meets quantity-produced technological requirement.Prior art adopts more arranges a combustion furnace in system, the high-temperature flue gas being produced by combustion furnace with from mixing with the low-temperature flue gas that hot equipment loops back, obtain stable hot blast.But it is too huge that the ubiquitous problem of prior art is volume, mix uneven and because of defects such as the easy collapse-deformations of the larger furnace wall of burner hearth.Particularly in the time that system thermal power is greater than 5MW, foregoing problems is more outstanding, simultaneously because whole system is very large, cause system transport difficulty, but also it is long to exist installation period, invests the excessive deficiency that waits.
Summary of the invention
The utility model provides one to overcome prior art deficiency, easily obtains the circulating air production system device of relatively high power and higher temperature.
A kind of device that produces circulating air of the present utility model, comprise: blower fan, the combustion furnace, air register, exhausting duct and the chimney that are communicated with blower fan downstream, combustion furnace in device at least two independently fuel gas buring stove combine, between each combustion furnace, connect with flange, between flange, have the encapsulant of alumina silicate sealing cordage.
The backwind tube of the waste heat wind in the device of generation hot blast of the present utility model after the heat absorption of the company's of being provided with interchangeable heat equipment, blower fan used is high-temperature blower.
In the most preferred embodiment of the device of generation circulating air of the present utility model, between the downstream of high-temperature blower and the upstream of first combustion furnace, be provided with an air-return duct, on air-return duct, be communicated with smokejack, the downstream of exhausting duct is communicated with one for heating the heat recovery heat exchanger of combustion air, downstream at heat recovery heat exchanger is communicated with chimney, and combustion air is introduced the heated end of heat recovery heat exchanger by a combustion fan.
From aforementioned content, the heating module unit combination that circulating air generation device of the present utility model is made up of plural fuel gas buring stove forms, the heating module unit combination consisting of multiple fuel gas buring stoves realizes high-power heating plant, as: the power≤250KW of single burner in device, and be internal-mixing structural shape, can ensure that like this burning in each combustion furnace is more abundant, and can avoid producing the some shortcomings of prior art, if do not caused the problems such as furnace wall collapse-deformation because burner hearth is excessive because of furnace chamber.Simultaneously according to the heating unit of the requirement set respective numbers of load, to meet the demand to high-power heat supply.In addition, owing to connecting with flange between each unit of the present utility model, each unit can connect and use with flange again after segmentation manufacture, its architectonic beauty is existing, neat durable and be convenient to install, and make the structure of device more simple with respect to prior art, can overcome many deficiencies of being not easy to transport that prior art volume is too huge and cause simultaneously.
In the utility model, due to combustion furnace is installed in hot air circulation pipeline, make to be reintroduced back in device through the waste heat gas with after heat load, make device have larger heat utilization efficiency.In the utility model, owing to being communicated with smokejack on the air-return duct at device, the downstream of exhausting duct is communicated with one for heating the heat recovery heat exchanger of combustion air, downstream at heat recovery heat exchanger is communicated with chimney, combustion air is introduced the heated end of heat recovery heat exchanger by a combustion fan, after the combustion-supporting gas that combustion fan is introduced is heated in advance, enter in combustion system, this can further improve the burning situation in combustion furnace again, makes burning more abundant effectively.
The utility model has the advantage of:
1, the utility model is taking modular hot-blast stove as supplying heat core, and system integration designs, compact conformation, and between unit parts, matching is strong, and is convenient to transport and installs.
2, modular mode of heating, integrates fuel gas buring stove, function pipeline, mixed wind function, in ensureing systemic-function, has simplified system architecture, thereby has reduced equipment investment.
3, in the utility model, the total heat duties of circulating air production system device is to be determined by the quantity of modular unit, therefore in the high-power hot-air system such as more than 10MW, the technical problems such as the equipment volume brought with respect to the technological measure that increased separate unit burner rating is in the past huge, safe operation protection is poor, the more aobvious advantage of the utility model is outstanding.The utility model only needs to increase module number and can realize.Because combustion power of the present utility model is born by several the burners that are less than 250KW, in the time that certain little burner breaks down, the maintenance of can independently stopping transport, and be unlikely to affect whole system operation, thus ensure whole hot-air system reliability of operation and stability.
4, the utility model structure can make circulation return air directly flow through flame heating region, thereby very easily obtain higher hot blast temperature (800 DEG C～1100 DEG C), and the circulation return air being heated by need due to flame wraps up, effectively reduce the temperature of flame field, thereby can greatly reduce N0
xformation, reach environmental protection service requirement.
5, in system smoke-exhaust pipeline, be provided with heat recovery heat exchanger, utilize smoke discharging residual heat heating combustion air, thereby reduce flue gas loss, reach energy-conservation object.
6, system is provided with full-automatic control system, determines after technique flow at cyclic high-temperature blower fan, and taking hot-blast outlet temperature as controlling target component, automatically regulating gas amount and combustion-supporting air quantity, realizes the full-automatic regulation of system thermic load.
7, device of the present utility model is chemical industry, provides thermal source guarantee in particular for the large-scale production of Coal Chemical Industry industry dry distillation of coal operation.
8, between the each parts of device of the present utility model, use high strength alumina silicate rope as encapsulant, can obtain good sealing property, choose reasonable combustion air proportioning simultaneously, can make Control for Oxygen Content in circulating air system arrive floor level.Can reduce at high temperature oxygen corrosion of equipment on the one hand, the more important thing is in the time that the hot equipment of use (as coal carbonization furnace) producing with inflammable gas breaks down leakage the unlikely security incidents such as detonation that cause.
Brief description of the drawings
Accompanying drawing 1 is the utility model device schematic diagram.Accompanying drawing 2 is a gas module heating unit generalized section. the top view that accompanying drawing 3 is accompanying drawing 2.In figure: 1 is return air adapter; 2 is high-temperature blower; 3 is flexible link; 4 is air-return duct; 5 is gas module formula combustion furnace; 6 is gas burner; 7 is alumina silicate sealing cordage; 8 is hot-blast outlet temperature sensor; 9 is non-metal expansion joint; 10 is air register; 11 is high temperature air channel; 12 is inspection door; 13 is heat-resistance stainless steel protective case; 14 is inside thermal conservation material; 15 is system control cabinet; 16 is gas pressure regulating voltage-stablizer; 17 is air feed main line; 18 is each burner combustion air valve group; 19 is that each burner is for gas valve group; 20 is chimney; 21 for carrying the combustion fan of combustion air; 22 is heat recovery heat exchanger; 23 for supplying combustion air pipeline; 24 is smokejack; 25 is steel construction housing; 26 is module adpting flange; 27 is the adiabatic wall of installing of gas burner; 28 chew brick for burner burns; 29 is the high temperature resistant insulating lining of casing lining; 30 is module mounting base.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figure 1: the hot blast after personal hot equipment heat absorption enters return air through return air inlet and takes over 1, is delivered to air-return duct 4 AM access module formula combustion furnaces 5 by high-temperature blower 2, between high-temperature blower 2 and air-return duct 4,3 be connected with being flexible coupling.Wherein modular combustion furnace 5 is made up of multiple gas modules unit, in the embodiment of Fig. 1, there are 7 combustion furnaces 5, between adjacent gas module unit, connect with flange and seal cordage 7 as encapsulant using alumina silicate, the gas burner 6 of 3-6 power≤250KW is installed in each gas module unit, every gas burner is all furnished with independently for gas valve group 19 with for combustion air valve group 18, after being regulated by voltage regulating and stabilizing device 16, combustion gas is delivered to each gas valve group through being responsible for 17 for combustion gas, supply with gas burner 6, after fully mixing with combustion air, burn and form flame return air is heated, the hot flue gas that burning produces on the other hand is directly sneaked in return air.As can be seen here by organize more modular combustion furnace 5 that fuel gas buring unit forms as burner hearth in completing combustion process, possess the function pipeline of circulating air circulation, process that the more important thing is return air heat temperature raising is automatically to complete in the time that this section is served as pipeline by burner hearth at return.Hot-blast outlet temperature is got parms after information and is reached system control cabinet 15 by sensor 8, automatically after regulating gas amount and air distribution, obtain the predetermined hot blast temperature of process conditions, hot blast is assigned to each interface of backheat equipment by high temperature air channel 11, after heat release, take over 1 access through return air inlet by return air, complete recirculation heating process.Wherein high temperature air channel 11 is internal insulation structure, and inside thermal conservation material 14 protective cases are heat-resistance stainless steel 13.Self-air-heating pipeline 11 is to arranging non-metal expansion joint 9 and air register 10 between the each hot blast import of hot equipment, and wherein the effect of non-metal expansion joint 9 is axially and radially thermal stress that the distortion of elimination system backheat produces, the safe and stable operation of support equipment.The effect of air register 10 is with regulating hot blast feeding amount according to technological requirement in hot device fabrication running.
The total hot blast rate of system is determined by the high-temperature blower 2 of variable frequency adjustment.When with after hot device fabrication steady load, system global cycle air quantity is constant, and after smokejack 24 is connected to heat recovery heat exchanger 22 heat releases, discharged by cigarette fontanel 20 because of the unnecessary gas that constantly burning supplemental heat the subject of knowledge and the object of knowledge produces because of modular combustion furnace 5, system is burnt after required combustion air is delivered to heat recovery heat exchanger 22 and absorbed heat by combustion fan 21 and is assigned to each burner and is participated in burning by combustion air pipeline 23.
System control cabinet 15, except completing foregoing Load Regulation function, is also born system equipment running state monitoring and security of operation interlock protection function.
By the visible gas module heating unit of accompanying drawing 2, the high temperature resistant insulating lining 29 of its steel construction housing 25 liner.Wherein a side arranges the adiabatic wall 27 of installing of gas burner.In this example, adiabatic installation on wall 27 is provided with 4 gas burners, and its burner outlet place is provided with to burn chews brick 28, and each gas module heating unit two ends are provided with adpting flange 26, and mounting base 30 is set.As can be seen here, each gas module heating unit is an independently combustion furnace, can independently bear the heating to return air, its quantity that combines required gas module heating unit is by requiring to determine by the required general power of hot equipment, very succinctly convenient in production application, and because its combustion function is born by many individual burner, in the time that having fault, can accomplish by certain burner on-line maintenance completely.
Claims (3)
1. one kind produces the device of circulating air, comprise: blower fan, the combustion furnace, air register, exhausting duct and the chimney that are communicated with blower fan downstream, it is characterized in that combustion furnace wherein at least two independently fuel gas buring stove combine, between each combustion furnace, connect with flange, between flange, have the encapsulant of alumina silicate sealing cordage.
2. the device of generation circulating air according to claim 1, is characterized in that the backwind tube of the waste heat wind after the heat absorption of the company's of being provided with interchangeable heat equipment in device, and blower fan used is high-temperature blower.
3. the device of generation circulating air according to claim 2, it is characterized in that being provided with an air-return duct between the downstream of high-temperature blower and the upstream of first combustion furnace, on air-return duct, be communicated with smokejack, the downstream of exhausting duct is communicated with one for heating the heat recovery heat exchanger of combustion air, downstream at heat recovery heat exchanger is communicated with chimney, and combustion air is introduced the heated end of heat recovery heat exchanger by a combustion fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177820.3U CN203797938U (en) | 2014-04-14 | 2014-04-14 | Device for generating circulating hot air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420177820.3U CN203797938U (en) | 2014-04-14 | 2014-04-14 | Device for generating circulating hot air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797938U true CN203797938U (en) | 2014-08-27 |
Family
ID=51380143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420177820.3U Expired - Lifetime CN203797938U (en) | 2014-04-14 | 2014-04-14 | Device for generating circulating hot air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983011A (en) * | 2014-04-14 | 2014-08-13 | 兰州泰得燃烧设备工程有限公司 | Device for generating circulating hot air |
-
2014
- 2014-04-14 CN CN201420177820.3U patent/CN203797938U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983011A (en) * | 2014-04-14 | 2014-08-13 | 兰州泰得燃烧设备工程有限公司 | Device for generating circulating hot air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |