CN202836257U - Direct air cooling device for power station - Google Patents
Direct air cooling device for power station Download PDFInfo
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- CN202836257U CN202836257U CN 201220370791 CN201220370791U CN202836257U CN 202836257 U CN202836257 U CN 202836257U CN 201220370791 CN201220370791 CN 201220370791 CN 201220370791 U CN201220370791 U CN 201220370791U CN 202836257 U CN202836257 U CN 202836257U
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- power station
- direct air
- air cooling
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Abstract
The utility model discloses a direct air cooling device for a power station, which includes a steam distribution tube, radiator fin tube bundles, an air duct, an axial flow cooling fan, a safety net, a fan bridge frame, and a supporting beam. The direct air cooling device for the power station further includes an unit interior flow guide component, which consists a wind-proof net, is in a cone frustum shape and is divided into an upper part and a lower part; and the unit interior guide flow component is mounted in the direct air cooling device for the power station, fixed on an inner passage, the fan bridge frame and the supporting beam of the direct air cooling device for the power station, and used for regulating air distribution of the direct air cooling device of the power station. According to the direct air cooling device for the power station, a flow guide effect is realized by the wind-proof net with a certain number of meshes, air at the lower part of the air cooling device for the power station moves to the upper part as much as possible, the air distribution in the direct air cooling device of the power station is regulated, and the heat exchanging performance of the direct air cooling device for the power station is improved, so that the safety and economical efficiency of the operation of a direct air cooling unit are improved.
Description
Technical field
The utility model relates to and utilizes Direct Air-Cooling Technology, relates in particular to the power station direct air-cooling device that is furnished with unit internal diversion parts.
Background technology
The regional rich coal lack of water of China " three Norths ", Direct Air-Cooling Technology is with its superior water-saving performance, be the effective measures that solve rich coal poor-water contradiction, can effectively alleviate water resource to the restriction of power industry, for an economy, safe and reliable approach have been opened up in the construction of near coal-mine power plant.Direct Air-cooled Unit as cooling medium, uses axial flow blower to carry out forced ventilation with air, obtains different MAFs by regulating rotation speed of fan with the blades installation angle.But, because the turning effort of fan blade, air more is distributed in the air duct outer rim by the laggard air that enters air duct of blower fan, therefore the also more bottom, unit that is distributed in of the air of inside, unit, cause top, unit allocation of the amount of air less, be unfavorable for the air cooling device heat exchange, affect the performance driving economy of Direct Air-cooled Unit.The problem of Direct Air-cooled Unit unit interior flow field irrational distribution needs to be resolved hurrily.
Studies show that the inner air quantity major part of power station direct air-cooling device is distributed in power station direct air-cooling device bottom, this allocation of the amount of air mode is unfavorable for air cooled fin tube Shu Huanre.Therefore, there are needs to the technology that can improve the inner allocation of the amount of air of power station direct air-cooling device in the prior art.
The utility model content
For the defective that prior art exists, the utility model provides a kind of power station direct air-cooling device inner, effectively solves the unreasonable distribution of the inner air quantity of power station direct air-cooling device to the adverse effect of Direct Air-Cooled device heat exchange.
A kind of power station direct air-cooling device according to embodiment of the present utility model, comprise: steam distributing pipe, the heat radiator fin tube bank, air duct, the axial flow cooling blower, safety net, fan bridge and support beam, described power station direct air-cooling device further comprises the unit internal diversion parts that are comprised of anti-wind net, described unit internal diversion parts are truncated cone shape, and on dividing, lower two parts arrange that it is inner that described unit internal diversion parts are installed on described power station direct air-cooling device, be fixed on the inner passage of described power station direct air-cooling device, on described fan bridge and the support beam, be used for regulating the allocation of the amount of air of described power station direct air-cooling device.
The cone angle of the unit internal diversion parts of described power station direct air-cooling device is 57 °, the angle of restraining with the heat radiator fin of power station direct air-cooling device is identical, and the base diameter of unit internal diversion parts is identical with the air duct outlet diameter of power station direct air-cooling device, and described bottom surface and air duct outlet are in sustained height, thereby the air mass flow pilot unit top that power station direct air-cooling device bottom is larger, make the distribution situation of power station direct air-cooling device interior flow field be tending towards reasonable, improve power station direct air-cooling device heat transfer characteristic, improve Direct Air-cooled Unit Operation safety and economy.
The main body of described power station direct air-cooling device internal diversion parts is comprised of anti-wind net, and the anti-wind net material is nylon rope, and the nylon rope string diameter is 2mm, and the order number is 24 ~ 36 orders, and two kinds of form individual layers and bilayer are arranged.
Described power station direct air-cooling device internal diversion component height is about about 6m, is divided into upper and lower two parts according to principle of equipartition, and upper and lower two parts can according to air cooling device heat transfer characteristic and fan performance, be selected respectively the anti-wind net of the different numbers of plies and order number.
The utility model can improve the heat exchange property of power station direct air-cooling device under any operating mode, solved the problem of power station direct air-cooling device interior flow field irrational distribution.Utilize aerodynamic principle, in the power station direct air-cooling device, install unit internal diversion parts additional, make power station direct air-cooling device interior flow field be tending towards rationally having significantly improved the heat exchange efficiency of air cooling tubes condenser.
Description of drawings
Fig. 1 is the primary structure schematic diagram of the power station direct air-cooling device of prior art.
Fig. 2 is according to the primary structure schematic diagram that disposes the power station direct air-cooling device of unit internal diversion parts of the present utility model.
Fig. 3 is the flow field schematic diagram that disposes the power station direct air-cooling device behind the unit internal diversion parts.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to accompanying drawing and enumerate preferred embodiment, the utility model is further described.Yet, need to prove that many details of listing in the specification only are in order to make the reader to one or more aspects of the present utility model a thorough understanding be arranged, even if there are not these specific details also can realize these aspects of the present utility model.
Fig. 1 shows the structural representation of the power station direct air-cooling device of prior art.As shown in Figure 1, the power station direct air-cooling device comprises steam distributing pipe 1, heat radiator fin tube bank 2, air duct 3, axial flow cooling blower 4, safety net 5, fan bridge 6 and support beam 7.
Fig. 2 is according to power station direct air-cooling apparatus structure schematic diagram of the present utility model.As shown in Figure 2, the power station direct air-cooling device comprises steam distributing pipe 1, heat radiator fin tube bank 2, air duct 3, axial flow cooling blower 4, safety net 5, fan bridge 6, support beam 7 and unit internal diversion parts 8.
As shown in Figure 2, unit internal diversion parts 8 are installed between the fan bridge 6 and support beam 7 of power station direct air-cooling device inside, and are fixed on fan bridge 6, inner passage, unit and the support beam 7.Unit internal diversion component shape is the frustum of a cone, and its cone angle is identical with the angle of heat radiator fin tube bank 2.Preferably, described cone angle is 57 °.According to ruuning situation and the fan performance of different power station direct air-cooling devices, can carry out to a certain degree adjustment to described cone angle.The bottom surface diameter of unit internal diversion parts 8 is identical with the air duct outlet diameter, and is in sustained height.Unit internal diversion parts 8 total heights are 6m.According to upper and lower principle of dividing equally, unit internal diversion parts 8 are divided into upper and lower two parts, upper and lower two parts form by anti-wind net.
Unit of the present utility model internal diversion parts use anti-wind net.In the utility model, anti-wind net can be 24-36 purpose anti-wind net, the material of anti-wind net is nylon rope, and the nylon rope string diameter is 2mm.Internal diversion parts employed anti-wind net in unit can be individual layer 24 order anti-wind nets; Internal diversion parts employed anti-wind net in unit can be 36 order anti-wind nets; Internal diversion parts employed anti-wind net in unit also can be double-deck 24 order anti-wind nets; Internal diversion parts employed anti-wind net in unit can also be double-deck 36 order anti-wind nets.Can select respectively above-mentioned four kinds of different combinations by adjusting order number and the number of plies of upper and lower two parts anti-wind net, reach the purpose of regulon allocation of the amount of air.The air quantity of 8 pairs of power station direct air-cooling devices of internal diversion parts inside, unit plays again distributional effects, namely change air cooling device interior flow field distribution situation, the air guide top that the bottom of power station direct air-cooling device is excessive, thereby guide functions is played in the flow field to power station direct air-cooling device inside, improve the heat transfer characteristic of power station direct air-cooling device, improve the economy of Air-cooled Unit operation.Simultaneously, under the cold meteorological condition, described unit internal diversion parts also can reduce the air mass flow of the bottom low-temperature region of power station direct air-cooling device, have resistance to frost to a certain degree in the winter time, improve the security of Air-cooled Unit.
Fig. 3 is installation unit internal diversion parts 8 rear air cooling device inner flow-line figure.
In power station direct air-cooling device shown in Figure 1, because the turning effort of axial flow cooling blower 4, air moves upward with spiral form after by blower fan, increase gradually from the blower fan center to the blade edge air velocity, so that enter the air of air duct more be distributed in the air duct outer rim, directly flow out from the air cooling device bottom, cause unit upper air flow less, be unfavorable for the unit heat exchange.And in the Direct Air-Cooled device that disposes unit internal diversion parts 8 as shown in Figure 2, regulate the allocation of the amount of air of described power station direct air-cooling device by unit internal diversion parts 8.Particularly, unit internal diversion parts 8 are the kinetic energy of the power station direct air-cooling device bottom air transverse movement kinetic energy that moves upward that is converted into as much as possible, thereby increase the air mass flow on top, unit, improve the heat transfer characteristic of air cooling device.
The above only is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. power station direct air-cooling device, comprise: steam distributing pipe, the heat radiator fin tube bank, air duct, the axial flow cooling blower, safety net, fan bridge and support beam, it is characterized in that, described power station direct air-cooling device further comprises the unit internal diversion parts that are comprised of anti-wind net, and described unit internal diversion parts are truncated cone shape, and minute upper and lower two parts are arranged, it is inner that described unit internal diversion parts are installed on described power station direct air-cooling device, and be fixed on the inner passage of described power station direct air-cooling device, described fan bridge and the support beam.
2. power station direct air-cooling device according to claim 1 is characterized in that, the pass of the anti-wind net of described unit internal diversion parts is even, and the mesh number is 24～36, and described anti-wind net is that nylon rope consists of, and the about 2mm of nylon rope string diameter.
3. power station direct air-cooling device according to claim 1 is characterized in that, the cone angle of the described frustum of a cone and described heat radiator fin tube bank angle are 57 °.
4. power station direct air-cooling device according to claim 1, it is characterized in that, the base diameter of described unit internal diversion parts is identical with the air duct outlet diameter of described power station direct air-cooling device, and described unit internal diversion parts total height is 6m, and upper and lower two parts respectively are 3m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370791 CN202836257U (en) | 2012-07-27 | 2012-07-27 | Direct air cooling device for power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220370791 CN202836257U (en) | 2012-07-27 | 2012-07-27 | Direct air cooling device for power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202836257U true CN202836257U (en) | 2013-03-27 |
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ID=47947945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220370791 Expired - Fee Related CN202836257U (en) | 2012-07-27 | 2012-07-27 | Direct air cooling device for power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202836257U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN104075588A (en) * | 2014-06-23 | 2014-10-01 | 华北电力大学 | Direct air cooling unit interior guide plate framework and mounting structure thereof |
| CN108167207A (en) * | 2018-02-26 | 2018-06-15 | 北京百正创源科技有限公司 | Cooling blower device and the cooling equipment with the device |
-
2012
- 2012-07-27 CN CN 201220370791 patent/CN202836257U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829647A (en) * | 2012-09-20 | 2012-12-19 | 哈尔滨工业大学（威海） | Finned-tube bundle freezing prevention device for direct air-cooling unit of power station |
| CN104075588A (en) * | 2014-06-23 | 2014-10-01 | 华北电力大学 | Direct air cooling unit interior guide plate framework and mounting structure thereof |
| CN104075588B (en) * | 2014-06-23 | 2016-05-18 | 华北电力大学 | A kind of Direct Air-Cooled unit internal diversion plate framework and mounting structure thereof |
| CN108167207A (en) * | 2018-02-26 | 2018-06-15 | 北京百正创源科技有限公司 | Cooling blower device and the cooling equipment with the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20130727 |