CN208595839U - A kind of heat recovery heat exchanger elbow area protective device - Google Patents
A kind of heat recovery heat exchanger elbow area protective device Download PDFInfo
- Publication number
- CN208595839U CN208595839U CN201820925347.0U CN201820925347U CN208595839U CN 208595839 U CN208595839 U CN 208595839U CN 201820925347 U CN201820925347 U CN 201820925347U CN 208595839 U CN208595839 U CN 208595839U
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- China
- Prior art keywords
- heat exchanger
- heat recovery
- heat
- elbow area
- recovery heat
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Abstract
A kind of heat recovery heat exchanger elbow area protective device, including heat recovery heat exchanger, header elbow area, heat exchange pipeline, blower；Heat recovery heat exchanger is arranged in flue；Heat exchange pipeline is set to heat recovery heat exchanger front, and connect with heat recovery heat exchanger；Blower is set on the outside of flue and connects heat exchange pipeline；Heat exchange pipeline is attached with header elbow area with pipeline.The utility model can effectively prevent to guarantee the safe operation of unit because of the pipeline leakage problem caused by low-temperature corrosion in unit operation: and its power is smaller, and the power consumption of whole device is small, and energy-saving effect is good;Utility model device structure is simple simultaneously, runs smoothly, safety, applied widely, is particularly suitable for afterheat heat exchanger (low-level (stack-gas) economizer).
Description
Technical field
The utility model relates to energy conservation and environmental protection thermal energy recovery technology fields, are a kind of protections of heat recovery heat exchanger elbow area
Device.This heat recovery heat exchanger elbow area protective device is mainly used in the low heat recovery heat exchanger engineering of power plant.
Technical background
In fields such as electric power, metallurgy, chemical industry, building materials, the flue-gas temperature of discharge is relatively high, causes a part of heat in this way
Amount loss.Heat loss due to exhaust gas is maximum one in station boiler various heat losses.General large and medium-sized station boiler is normally being transported
When row, heat loss due to exhaust gas accounts for the 4%-8% of boiler oil input heat；And every 15 DEG C -25 DEG C of the reduction of exhaust gas temperature, so that it may mention
High boiler efficiency 1% or so.As China's energy conservation deepens continuously, and and coal price rises steadily at present, people
Increasingly pay attention to as high fume temperature and caused by energy waste problem, most of power plant have begun utilizes fume afterheat return
Receiving apparatus reduces the flue-gas temperature of discharge by 20 DEG C -50 DEG C again, and achieves certain effect, in addition, utilizes flue gas waste heat recovery
Device further decreases exhaust gas temperature, and can also improve deduster while saving energy removes the rate that comes into force, and reaches energy-saving ring from face
The purpose of guarantor.
Heat exchanger is the capital equipment that flue gas waste heat recovery apparatus realizes waste heat recycling, arragement construction and is set in flue
Seated position is usually to be determined according to the layout at scene.Since heat recovery heat exchanger is arranged in flue, if leakage will affect
The safe operation of entire unit, therefore to elbow area leakage position, it adopts an effective measure as early as possible outstanding for heat recovery heat exchanger
Its is important.
In view of this, the designer is based on being engaged in practical experience abundant of such product design manufacture many years and profession is known
Know, and cooperate the utilization of scientific principle, be actively subject to research and innovation, to found a kind of low heat recovery heat exchanger elbow area protection dress
It sets, can effectively prevent the elbow area leakage of heat recovery heat exchanger, guarantee the safe operation of unit, with more practical
Property.By constantly studying, designing and after studying sample repeatedly and improving, this reality having practical value is created finally
With novel.
Utility model content
The purpose of this utility model is to provide a kind of heat recovery heat exchanger elbow area protective device, skills to be solved
Art problem is to be avoided because of the pipeline leakage problem caused by low-temperature corrosion in unit operation because of the corruption of heat recovery heat exchanger elbow area
Economic loss caused by erosion leakage causes unit outage and repairs.
The purpose of this utility model and to solve its technical problem be that it is realized by adopting the following technical scheme: a kind of waste heat
Recycle heat exchanger elbow area protective device, including heat recovery heat exchanger, header elbow area, heat exchange pipeline, blower；Waste heat recycling
Heat exchanger is arranged in flue；Heat exchange pipeline is set to heat recovery heat exchanger front, and connect with heat recovery heat exchanger；Wind
Machine is set on the outside of flue and connects heat exchange pipeline；Heat exchange pipeline is attached with header elbow area with pipeline.
Further, header elbow area is equipped with exhaust valve.
Further, the blower sucks cold wind to push the air after heating to be transferred to the header in heat recovery heat exchanger
Elbow area is heated, the air emptying after heating.
The utility model by by outside air be passed through heat exchange pipeline absorb flue gas in heat, after blower makes heating
Air be transmitted to the elbow area of low-temperature space, the air after heating is emptied by exhaust valve, since input elbow area is a large amount of
Heating air can improve the temperature in elbow area and generating positive pressure prevents the flue gas in flue from draining to elbow area, can be effective
Prevent unit run in because of the pipeline leakage problem caused by low-temperature corrosion.
The beneficial effects of the utility model are: the utility model has clear advantage and compared with prior art beneficial to effect
Fruit.By above-mentioned technical proposal, a kind of heat recovery heat exchanger elbow of the utility model area protective device at least has following excellent
Point and the utility model has the advantages that it can effectively prevent to guarantee unit because of the pipeline leakage problem caused by low-temperature corrosion in unit operation
Safe operation: and its power is smaller, and the power consumption of whole device is small, and energy-saving effect is good;Utility model device structure letter simultaneously
It is single, it runs smoothly, safety, it is applied widely, it is particularly suitable for afterheat heat exchanger (low-level (stack-gas) economizer).
Detailed description of the invention
Fig. 1 is the structural schematic diagram of heat recovery heat exchanger elbow area protective device in the utility model.
In Fig. 1: 1: flue, 2: heat recovery heat exchanger, 3: header elbow area, 4: heat exchanger tube, 5: blower, 6: exhaust valve.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose of utility model and being taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes a kind of heat recovery heat exchanger elbow area protect dress
Set detailed description such as.
A kind of heat recovery heat exchanger elbow area protective device as shown in Figure 1:, including heat recovery heat exchanger 2, header are curved
Head Section 3, heat exchange pipeline 4, blower 5；Heat recovery heat exchanger 2 is arranged in flue 1；Heat exchange pipeline 4 is set to waste heat recycling and changes
Hot 2 front of device, and connect with heat recovery heat exchanger 2；Blower 5 is set to 1 outside of flue and connects heat exchange pipeline 4；Heat exchanger tube
Road 4 is attached with header elbow area 3 with pipeline.
Further, header elbow area 3 is equipped with exhaust valve 6.
Further, the blower 5 sucks cold wind to push the air after heating to be transferred to the collection in heat recovery heat exchanger 2
Case elbow area 3 is heated, the air emptying after heating.
The utility model makes to heat by the heat being passed through outside air in the absorption flue gas of heat exchange pipeline 4 by blower
Air afterwards is transmitted to the elbow area of low-temperature space, and the air after heating is emptied by exhaust valve 6, since input elbow area is big
Amount heating air can improve the temperature in elbow area and generating positive pressure prevents the flue gas in flue from draining to elbow area, Ji Keyou
Effect prevent unit run in because of the pipeline leakage problem caused by low-temperature corrosion.
Implementation example recited above is only that preferred embodiments of the present invention are described, not to this reality
It is defined with novel conception and scope, under the premise of not departing from the utility model design conception, ordinary skill in this field
The all variations and modifications that technical staff makes the technical solution of the utility model should all fall into the protection model of the utility model
It encloses, technical content requested for protection of the utility model is all described in the claims.
Claims (3)
1. a kind of heat recovery heat exchanger elbow area protective device, which is characterized in that including heat recovery heat exchanger (2), header
Elbow area (3), heat exchange pipeline (4), blower (5)；Heat recovery heat exchanger (2) setting is in flue (1)；Heat exchange pipeline (4) is set
It is placed in heat recovery heat exchanger (2) front, and is connect with heat recovery heat exchanger (2)；Blower (5) is set on the outside of flue (1)
And connect heat exchange pipeline (4)；Heat exchange pipeline (4) is attached with header elbow area (3) with pipeline.
2. a kind of heat recovery heat exchanger elbow area protective device according to claim 1, which is characterized in that the header is curved
Head Section (3) is equipped with exhaust valve (6).
3. a kind of heat recovery heat exchanger elbow area according to claim 1 or claim 2 protective device, which is characterized in that the wind
Machine (5) sucks cold wind and is added come the header elbow area (3) for pushing the air after heating to be transferred in heat recovery heat exchanger (2)
Heat, the air emptying after heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925347.0U CN208595839U (en) | 2018-06-15 | 2018-06-15 | A kind of heat recovery heat exchanger elbow area protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820925347.0U CN208595839U (en) | 2018-06-15 | 2018-06-15 | A kind of heat recovery heat exchanger elbow area protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595839U true CN208595839U (en) | 2019-03-12 |
Family
ID=65601331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820925347.0U Expired - Fee Related CN208595839U (en) | 2018-06-15 | 2018-06-15 | A kind of heat recovery heat exchanger elbow area protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595839U (en) |
-
2018
- 2018-06-15 CN CN201820925347.0U patent/CN208595839U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190312 Termination date: 20200615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |