CN203464241U - Bare tube type fractional waste heat recovery coal economizer - Google Patents
Bare tube type fractional waste heat recovery coal economizer Download PDFInfo
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- CN203464241U CN203464241U CN201320581796.5U CN201320581796U CN203464241U CN 203464241 U CN203464241 U CN 203464241U CN 201320581796 U CN201320581796 U CN 201320581796U CN 203464241 U CN203464241 U CN 203464241U
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- perforated plate
- smoke
- box
- housing
- waste heat
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The utility model relates to a bare tube type fractional waste heat recovery coal economizer. The coal economizer is characterized in that a casing is in a cylinder shape; a plurality of heat exchange chambers and smoke chambers are arranged inside the casing; upper and lower tube plates are distributed in parallel in an inclined way; a vertical bare tube group, a vertical baffle and a horizontal baffle are arranged between the upper and lower tube plates, so as to form a plurality of heat exchange chambers with the casing; an upper smoke chamber is formed between the upper tube plate and the upper casing; and smoke inlet and outlet chambers are formed among the lower tube plate, a smoke baffle and the lower casing. Smoke sequentially passes through all the heat exchange chambers inside the bare tube from high temperature to low temperature. Fed water adversely flows through all the heat exchange chambers outside the bare tube from low temperature to high temperature. By arranging heating surfaces in quantity and simultaneously increasing the temperature difference between gas phase and liquid phase and the flow rate of gas phase and liquid phase, the purposes of improving heat exchange efficiency and thoroughly recycling waste heat are achieved. The coal economizer is applicable to waste heat recovery in fields of industrial boilers, kilns and the like.
Description
Technical field
The utility model relates to a kind of light pipe type classification waste heat recovery economizer, belongs to the heat recovery technology field in the fields such as Industrial Boiler, kiln.
Background technology
At present, in Industrial Boiler waste heat recovery, using more is cast iron gilled tube economizer, and its drawback is: 1, heating surface is arranged few; 2, flue gas resistance is large; 3, can not Continuous Heat Transfer.Recovery only has surplus heat when boiler feedwater; 4, easily block up ash, and then affect the normal operation of boiler; 5, there is potential safety hazard.When boiler stops feeding water, the water bumping in economizer pipeline, may cause the security incidents such as booster.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of existing economizer, and a kind of light pipe type classification waste heat recovery economizer is provided.
The technical solution of the utility model is: a kind of light pipe type classification waste heat recovery economizer, it is characterized in that: housing is cylinder, and a plurality of Heat Rooms and smoke-box are established in inside; Described Heat Room consists of upper perforated plate, lower perforated plate, lateral partitions, vertical clapboard, vertical light pipe and housing; Lateral partitions is located on the housing between upper perforated plate and lower perforated plate; Lateral partitions is provided with paddle hole; Between upper perforated plate and lower perforated plate, be provided with vertical light pipe and vertical clapboard; Between vertical clapboard and upper perforated plate, be provided with apopore; Described upper perforated plate, lower perforated plate, lateral partitions, vertical clapboard, vertical light pipe and housing form 4 Heat Rooms; It between upper perforated plate and upper body, is upper smoke-box; Upper smoke-box one side is provided with manhole; Between lower perforated plate, smoke baffle plate and housing, form into smoke-box and go out smoke-box, it is respectively equipped with shoot door; Between upper perforated plate and lower perforated plate, a plurality of light pipes are set through diaphragm plate, respectively with enter smoke-box, upper smoke-box, go out smoke-box and communicate; Be provided with into mouth entering smoke-box one side; Be provided with outlet flue going out smoke-box one side; In case top, be provided with water supply tank and connect water distributor, water distributor is provided with water distributing pore; On the housing of upper perforated plate and housing junction, be provided with blow-down pipe; On the housing of lower perforated plate and housing junction, be provided with blow-off pipe, outlet pipe.
Upper perforated plate described in the utility model, lower perforated plate, lateral partitions be oblique being arranged in parallel all.
The circular arc place that is arranged on the lateral partitions left and right sides into and out of water hole in lateral partitions described in the utility model is semi-circular hole.
Apopore between vertical clapboard described in the utility model and upper perforated plate is semi-circular hole.
Blow-down pipe described in the utility model is arranged on the housing at the high-end place of upper perforated plate.
Blow-off pipe described in the utility model, outlet pipe are arranged on the housing of lower perforated plate lower end.
During operation, flue gas is from entering successively each Heat Room by high temperature to low temperature in light pipe, feedwater from light pipe by low temperature to high temperature reverse flow through each Heat Room.By a large amount of layout heating surfaces, increase the temperature difference and the flow velocity of vapour-liquid two-phase simultaneously, reach the object that improves heat exchange efficiency and abundant recovery waste heat.
The beneficial effects of the utility model are: 1, heating surface arranges that waste heat recovery is abundant greatly; 2, automatic water supplement, Continuous Heat Transfer, whether pipe boiler is not interrupted water inlet, in economizer, all can keep ordinary water level, thereby accomplishes Continuous Heat Transfer; 3, be difficult for dust stratification, resistance is little, because light pipe is arranged vertically, flue gas flows at light pipe inwall, the dust in flue gas is difficult for being attached on the inwall of light pipe; 4, safety, operation with no pressure, the bubble and the steam that in Heat Room, produce are upward through lateral partitions, upwards along upper perforated plate, enter blow-down pipe again and enter in the air, the water hammer of having avoided the bubble on upper perforated plate liquid level to break and produce, has also avoided generation pressure in Heat Room; 5, heat exchange efficiency is high, owing to cheating, the flow direction of water is just in time contrary with flue gas flow direction, in objectively having increased, the temperature difference of the indoor gas-liquid two-phase of low-temperature heat exchange, simultaneously by suitably improving the flow velocity of gas-liquid two-phase, and then raising heat exchange efficiency, exhaust gas temperature can be down to 60 degree Celsius; 6, easy maintenance, the dirt producing in Heat Room can regularly be discharged from blow-off pipe, and the flue dust in smoke-box can be from the periodic cleaning of Chilly ash door, and the cigarette ash on light pipe inwall can enter regularly clear Xian from manhole; 7, be conducive to the normal operation of boiler feed pump, because turnover smoke-box is arranged in economizer bottom, its extra feed tank position, top is higher in addition, and entrance of water-supplying pump end static pressure is larger, can effectively avoid high-temperature water in the arrival end generation cavitation of pump.
Accompanying drawing explanation
Fig. 1 is the utility model generalized section;
Fig. 2 is vertical clapboard schematic diagram;
Fig. 3 is lateral partitions schematic diagram.
In figure: 1, housing; 2, manhole; 3, outlet pipe; 4, blow-off pipe; 5, enter mouth; 6, left shoot door; 7, bracket; 8, smoke baffle plate; 9, right shoot door; 10, outlet flue; 11, blow-down pipe; 12, water supply tank; 13, enter smoke-box; 14, upper smoke-box; 15, go out smoke-box; 16, upper perforated plate; 17, lower perforated plate; 18, vertical clapboard; 19, lateral partitions; 20, light pipe group; 21, high temperature Heat Room; 22, middle high temperature Heat Room; 23, middle low-temperature heat exchange chamber; 24, low-temperature heat exchange chamber; 25, water distributor.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Shown in Fig. 1, Fig. 2, Fig. 3, the utility model is by housing 1, manhole 2, outlet pipe 3, blow-off pipe 4, enter mouth 5, left shoot door 6, bracket 7, smoke baffle plate 8, right shoot door 9, outlet flue 10, blow-down pipe 11, water supply tank 12, enters smoke-box 13, upper smoke-box 14, goes out smoke-box 15, upper perforated plate 16, lower perforated plate 17, vertical clapboard 18, lateral partitions 19, light pipe group 20, high temperature Heat Room 21, middle high temperature Heat Room 22, middle low-temperature heat exchange chamber 23, low-temperature heat exchange chamber 24, water distributor 25 forms.Whole equipment is placed on bracket 7.
During equipment operation, flue gas enters into smoke-box 13 from entering mouth 5, in light pipe 20, upwards passes through high temperature Heat Room 21, and middle high temperature Heat Room 22 enters smoke-box 14, enter successively middle low-temperature heat exchange chamber 23 downwards again, low-temperature heat exchange chamber 24 arrives out smoke-box 15, through outlet flue 10, enters deduster.During boiler feed water, feedwater enters water distributor 25 from water supply tank 12, from the some water distributing pores of water distributor, enter low-temperature heat exchange chamber 24, upwards the semi-circular hole through lateral partitions 19 enters middle low-temperature heat exchange chamber 23, upwards through vertical clapboard 18 upper end semi-circular hole, enter middle high temperature Heat Room 22 again, through lateral partitions half circular hole, enter high temperature Heat Room 21 downwards again, then through bottom outlet pipe 3, enter boiler feed pump downwards.The bubble producing in Heat Room and steam upwards enter blow-down pipe along upper perforated plate through lateral partitions.Dirt regularly discharges from bottom blow-down pipe.Into and out of the dust in smoke-box from left and right shoot door periodic cleaning.Black dirt in light pipe enters regularly clear Xian from upper smoke-box manhole.
Claims (6)
1. a light pipe type classification waste heat recovery economizer, is characterized in that: housing is cylinder, and a plurality of Heat Rooms and smoke-box are established in inside; Described Heat Room consists of upper perforated plate, lower perforated plate, lateral partitions, vertical clapboard, vertical light pipe and housing; Lateral partitions is located on the housing between upper perforated plate and lower perforated plate; Lateral partitions is provided with paddle hole; Between upper perforated plate and lower perforated plate, be provided with vertical light pipe and vertical clapboard; Between vertical clapboard and upper perforated plate, be provided with apopore; Described upper perforated plate, lower perforated plate, lateral partitions, vertical clapboard, vertical light pipe and housing form 4 Heat Rooms; It between upper perforated plate and upper body, is upper smoke-box; Upper smoke-box one side is provided with manhole; Between lower perforated plate, smoke baffle plate and housing, form into smoke-box and go out smoke-box, it is respectively equipped with shoot door; Between upper perforated plate and lower perforated plate, a plurality of light pipes are set through lateral partitions, respectively with enter smoke-box, upper smoke-box, go out smoke-box and communicate; Be provided with into mouth entering smoke-box one side; Be provided with outlet flue going out smoke-box one side; In case top, be provided with water supply tank and connect water distributor, water distributor is provided with water distributing pore; On the housing of upper perforated plate and housing junction, be provided with blow-down pipe; On the housing of lower perforated plate and housing junction, be provided with blow-off pipe, outlet pipe.
2. light pipe type classification waste heat recovery economizer according to claim 1, is characterized in that: upper perforated plate, lower perforated plate, lateral partitions be oblique being arranged in parallel all.
3. light pipe type classification waste heat recovery economizer according to claim 1, is characterized in that: the circular arc place that is arranged on the lateral partitions left and right sides into and out of water hole in lateral partitions is semi-circular hole.
4. light pipe type classification waste heat recovery economizer according to claim 1, is characterized in that: the apopore between vertical clapboard and upper perforated plate is semi-circular hole.
5. light pipe type classification waste heat recovery economizer according to claim 1, is characterized in that: blow-down pipe is arranged on the housing at the high-end place of upper perforated plate.
6. light pipe type classification waste heat recovery economizer according to claim 1, is characterized in that: blow-off pipe, outlet pipe are arranged on the housing of lower perforated plate lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581796.5U CN203464241U (en) | 2013-09-22 | 2013-09-22 | Bare tube type fractional waste heat recovery coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581796.5U CN203464241U (en) | 2013-09-22 | 2013-09-22 | Bare tube type fractional waste heat recovery coal economizer |
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| Publication Number | Publication Date |
|---|---|
| CN203464241U true CN203464241U (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581796.5U Withdrawn - After Issue CN203464241U (en) | 2013-09-22 | 2013-09-22 | Bare tube type fractional waste heat recovery coal economizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203464241U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486565A (en) * | 2013-09-22 | 2014-01-01 | 艾韬 | Light tube type graded waste heat recycling economizer |
-
2013
- 2013-09-22 CN CN201320581796.5U patent/CN203464241U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486565A (en) * | 2013-09-22 | 2014-01-01 | 艾韬 | Light tube type graded waste heat recycling economizer |
| CN103486565B (en) * | 2013-09-22 | 2014-12-24 | 艾韬 | Light tube type graded waste heat recycling economizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20141224 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20141224 |
|
| RGAV | Abandon patent right to avoid regrant |