CN205388306U - Novel low -temperature coal economizer - Google Patents
Novel low -temperature coal economizer Download PDFInfo
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- CN205388306U CN205388306U CN201620126094.1U CN201620126094U CN205388306U CN 205388306 U CN205388306 U CN 205388306U CN 201620126094 U CN201620126094 U CN 201620126094U CN 205388306 U CN205388306 U CN 205388306U
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Abstract
The utility model relates to a novel low -temperature coal economizer, including low -level (stack -gas) economizer import header (1), low -level (stack -gas) economizer outlet header (2), coiled pipe (3), prop up supporting beam (4) and stand (5), low -level (stack -gas) economizer import header (1) sets up in low -level (stack -gas) economizer outlet header (2) below, coiled pipe (3) set up between low -level (stack -gas) economizer import header (1) and low -level (stack -gas) economizer outlet header (2), low -level (stack -gas) economizer import header (1) and coiled pipe (3) access connection, low -level (stack -gas) economizer outlet header (2) and coiled pipe (3) exit linkage, it sets up in coiled pipe (3) below to prop up supporting beam (4), it is used for supporting coiled pipe (3) to prop up supporting beam (4), stand (5) set up in coiled pipe (3) one side, coiled pipe (3) are supported on stand (5), the utility model discloses not only heat transfer efficiency is high, compact structure, and the abrasionproof performance is good, and it is effectual to get rid of waste heat recovery, simple to operate, reliable moreover, easy operation.
Description
[technical field]
This utility model relates to boiler preheating recovery technology field, specifically a kind of new type low temperature economizer.
[background technology]
The exhaust gas temperature of the many station boilers of China is higher than design load, about high 20-30 DEG C than design load.So, if exhaust gas temperature can be reduced, it is respectively provided with important practical significance for saving fuel, reducing to pollute.At present, the exhaust gas temperature of domestic station boiler mostly between 120 DEG C-140 DEG C, have even up to more than 160 DEG C.Therefore, the amplitude that the exhaust gas temperature of China can reduce is very big, and the quantity of the standard coal consumption that can reduce accordingly is also very considerable.
[utility model content]
The purpose of this utility model seeks to solve above-mentioned deficiency and provides a kind of new type low temperature economizer, and not only heat transfer efficiency is high, compact conformation, and abrasionproof performance is good, gets rid of waste heat recovery effective, and easy for installation, reliable, simple to operate.
A kind of new type low temperature economizer of design for achieving the above object, including low-level (stack-gas) economizer inlet header 1, low-level (stack-gas) economizer outlet header 2, coil 3, support beam 4 and column 5, described low-level (stack-gas) economizer inlet header 1 is arranged on below low-level (stack-gas) economizer outlet header 2, described coil 3 is arranged between low-level (stack-gas) economizer inlet header 1 and low-level (stack-gas) economizer outlet header 2, described low-level (stack-gas) economizer inlet header 1 is connected with coil 3 import, described low-level (stack-gas) economizer outlet header 2 is connected with coil 3 outlet, described support beam 4 is arranged on below coil 3, described support beam 4 is used for supporting coil 3, described column 5 is arranged on coil 3 side, described coil 3 is supported on column 5.
Water in described coil 3 is to lower and upper flowing, and transversal flow coil 3 tube wall from top to down of the flue gas outside described coil 3, described coil 3 caliber is 32mm.
Described support beam 4 adopts 304 stainless steel materials to make.
Described column 5 adopts I-steel to make, and the material of described column 5 is 304 rustless steels.
Described coil 3 adopts H type extended surface tube as heat exchange element.
This utility model compared with the existing technology, has the advantage that
(1) features such as adopting H type extended surface tube as heat exchange element, have heat transfer efficiency height, compact conformation, dust stratification is few, and abrasionproof performance is good, and overall rigidity is eager to do well in everything, and it is effective to get rid of waste heat recovery；
(2) gas approach manufactures and designs, and enters cigarette uniform, thus effectively reducing abrasion；
(3) adopt sulfuric acid corrosion resistant steel making with smoke contacts parts low-temperature zone, thus it is uniform to enter cigarette, effectively reduce abrasion；
(4) leave maintenance between high temperature section and low-temperature zone and safeguard gap (general 800-900mm), providing convenience for maintenance；
(5) by modular design method, easy for installation, reliable, simple to operate, efficiency is high；
(6) exhaust gas temperature of boiler can be reduced, increase generated energy, reduce coal consumption, save desulfurization water consumption, protect chimney, be worthy of popularization.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model；
In figure: 1, low-level (stack-gas) economizer inlet header 2, low-level (stack-gas) economizer outlet header 3, coil 4, support beam 5, column.
[detailed description of the invention]
This utility model is made further explained below below in conjunction with accompanying drawing:
nullAs shown in Figure 1，This utility model includes: low-level (stack-gas) economizer inlet header 1、Low-level (stack-gas) economizer outlet header 2、Coil 3、Support beam 4 and column 5，Low-level (stack-gas) economizer inlet header 1 is arranged on below low-level (stack-gas) economizer outlet header 2，Coil 3 is arranged between low-level (stack-gas) economizer inlet header 1 and low-level (stack-gas) economizer outlet header 2，Low-level (stack-gas) economizer inlet header 1 is connected with coil 3 import，Low-level (stack-gas) economizer outlet header 2 is connected with coil 3 outlet，Support beam 4 to be arranged on below coil 3，Support beam 4 for coil 3 is supported，Supporting beam 4 adopts 304 stainless steel materials to make，Column 5 is arranged on coil 3 side，Column 5 adopts I-steel to make，I-steel size is determined according to boiler size，The material of column 5 is 304 rustless steels，Coil 3 is supported on column 5；Water in coil 3 is to lower and upper flowing, and the flue gas outside coil 3 is transversal flow coil 3 tube wall from top to down, and to realize the heat exchange between flue gas and feedwater, coil 3 size is 32mm, and coil 3 adopts H type extended surface tube as heat exchange element.
Low-level (stack-gas) economizer described in the utility model, including low-level (stack-gas) economizer inlet header, is arranged on below low-level (stack-gas) economizer, is connected with low-level (stack-gas) economizer outlet header；Low-level (stack-gas) economizer outlet header, is arranged on the top of low-level (stack-gas) economizer；Low-level (stack-gas) economizer coil, is arranged between air inlet-outlet-housing；Support beam, be arranged on coil supported underneath coil；Column, is arranged on by coil, and low-level (stack-gas) economizer inlet header, low-level (stack-gas) economizer outlet header, coil are supported load-bearing；This low-level (stack-gas) economizer can reduce the exhaust gas temperature of boiler, increases generated energy, reduces coal consumption, saves desulfurization water consumption, protects chimney.
The purpose of this utility model is to provide for a kind of under general exhaust gas temperature, and boiler exhaust gas is also the waste heat source that a potentiality is very big, it is possible to use much new technology and equipment reduces the exhaust gas temperature of boiler.Flue gas loss is a most important heat loss in boiler operatiopn, is typically about 5%-12%, accounts for the 60%-70% of boiler heat loss.The principal element affecting heat loss due to exhaust gas is exhaust gas temperature, and generally, exhaust gas temperature often increases by 10 DEG C, and heat loss due to exhaust gas increases 0.6%-1.0%, corresponding many consumption coal 1.2-2.4g/kwh.Reduction exhaust gas temperature has important practical significance for energy-saving and emission-reduction and installs low-level (stack-gas) economizer additional at boiler back end ductwork, it is possible to reaches degree of depth Mist heat recovering, increase generated energy, reduce coal consumption, save the purpose that desulfurization water consumes, protects chimney.
This utility model is not by the restriction of above-mentioned embodiment; other any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (5)
- null1. a new type low temperature economizer，It is characterized in that: include low-level (stack-gas) economizer inlet header (1)、Low-level (stack-gas) economizer outlet header (2)、Coil (3)、Support beam (4) and column (5)，Described low-level (stack-gas) economizer inlet header (1) is arranged on low-level (stack-gas) economizer outlet header (2) lower section，Described coil (3) is arranged between low-level (stack-gas) economizer inlet header (1) and low-level (stack-gas) economizer outlet header (2)，Described low-level (stack-gas) economizer inlet header (1) is connected with coil (3) import，Described low-level (stack-gas) economizer outlet header (2) is connected with coil (3) outlet，Described support beam (4) is arranged on coil (3) lower section，Described support beam (4) is used for supporting coil (3)，Described column (5) is arranged on coil (3) side，Described coil (3) is supported on column (5).
- 2. new type low temperature economizer as claimed in claim 1, it is characterized in that: the extremely lower and upper flowing of the water in described coil (3), described coil (3) flue gas outward transversal flow coil (3) tube wall from top to down, described coil (3) caliber is 32mm.
- 3. new type low temperature economizer as claimed in claim 1 or 2, it is characterised in that: described support beam (4) adopts 304 stainless steel materials to make.
- 4. new type low temperature economizer as claimed in claim 3, it is characterised in that: described column (5) adopts I-steel to make, and the material of described column (5) is 304 rustless steels.
- 5. new type low temperature economizer as claimed in claim 4, it is characterised in that: described coil (3) adopts H type extended surface tube as heat exchange element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126094.1U CN205388306U (en) | 2016-02-18 | 2016-02-18 | Novel low -temperature coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620126094.1U CN205388306U (en) | 2016-02-18 | 2016-02-18 | Novel low -temperature coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388306U true CN205388306U (en) | 2016-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620126094.1U Active CN205388306U (en) | 2016-02-18 | 2016-02-18 | Novel low -temperature coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388306U (en) |
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2016
- 2016-02-18 CN CN201620126094.1U patent/CN205388306U/en active Active
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