CN203837514U - Heat dissipation unit and direct air cooling system - Google Patents
Heat dissipation unit and direct air cooling system Download PDFInfo
- Publication number
- CN203837514U CN203837514U CN201420191789.9U CN201420191789U CN203837514U CN 203837514 U CN203837514 U CN 203837514U CN 201420191789 U CN201420191789 U CN 201420191789U CN 203837514 U CN203837514 U CN 203837514U
- Authority
- CN
- China
- Prior art keywords
- heat
- cable
- header
- accompanying
- sink unit
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 43
- 230000017525 heat dissipation Effects 0.000 title abstract 10
- 230000005855 radiation Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000007710 freezing Methods 0.000 abstract description 12
- 230000008014 freezing Effects 0.000 abstract description 12
- 208000033999 Device damage Diseases 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000010257 thawing Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 238000000629 steam reforming Methods 0.000 description 1
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a heat dissipation unit and a direct air cooling system. An internal flow path for a heat dissipation medium to flow in the heat dissipation unit is arranged in the heat dissipation unit. The heat dissipation unit is characterized by comprising a power supply device and a heat tracing cable (5) arranged in the internal flow path. The heat tracing cable (5) is electrically connected to the power supply device and is continuously arranged along the internal flow path. According to the technical scheme, due to the fact that the continuous heat tracing cable is arranged in the internal flow path, the heat dissipation unit can be internally heated comprehensively, internal freezing of the heat dissipation unit is avoided, the heat dissipation unit can be used normally in cold weather, device damage caused by the internal freezing of the heat dissipation unit is reduced, the cost is reduced, and production efficiency is improved.
Description
Technical field
The utility model relates to cooling unit, particularly, and the direct air cooling system that relates to a kind of heat-sink unit for cooling steam and comprise this heat-sink unit.
Background technology
At present, in order to tackle the water resource contradiction becoming increasingly conspicuous, Generator Set generally all adopts Direct Air-Cooling Technology, particularly in rich coal water-deficient area.Compare with the clammy unit of routine, Direct Air-cooled Unit can reduce water consumption 2/3 left and right.Coal in China enrichment area is in northern severe cold areas, and due to lack of water, thermal power generation unit in this area's generally adopts turbine discharge Direct Air-Cooling Technology.
Steam turbine air cooling system very easily freezes in the winter time, and due to huge (the 300000 kilowatts of units of an air cooling of air cooling area, air cooling area is 839040 ㎡), in high-altitude benefit, the difficulty of thawing, when serious, can make air cooled fin tube gross distortion, cracking so that cannot repair, affect unit vacuum, unit economy is declined.
In order to prevent that air cooling system from freezing, technical staff has adopted multiple freezing proof technique, but equal Shortcomings:
1) close air cooling cell isolation valve technology, close a part of air cooling unit and prevent that to increase other cooling unit thermic loads it from freezing, yet because separation valve door latus rectum is excessive, the tightness of cold examination, when hot due to valve body, door plate deformation factor, the tightness of valve is difficult to guarantee, a small amount of steam air cooling unit of separation valve door off-the-line that directly bleeds, still can freeze;
2) cooling blower inversion technique, be only applicable to small size partial freezing, can adopt cooling blower reversing not freeze the hot blast that finned tube is discharged near taking out, the icing of finned tube inside thaws, once larger area or whole unit, freeze, for cooling unit lower collecting box and condensate line, freeze helpless;
3) electric tracing technology, this technology is at pipeline, device external wrap round heat tracing band, in heating tape outside, install the freezing proof technique of insulation additional, only for the frozen condensate line in part, exhaust pipeline, the scope of thawing and limited in one's ability, and power consumption is larger, for cooling unit lower collecting box and finned tube pipe row, due to outside, cannot arrange and install accompanying-heat cable and insulation additional, cannot thaw.
In view of this heat-sink unit that needs to provide a kind of steam pipework that can effectively prevent from dispelling the heat to freeze.
Utility model content
Problem to be solved of the present utility model is to provide a kind of heat-sink unit, and this heat-sink unit steam pipework that can effectively prevent from dispelling the heat freezes.
In addition, the problem that the utility model also will solve is to provide a kind of direct air cooling system, and the heat-sink unit of this direct air cooling system steam pipework that can effectively prevent from dispelling the heat freezes.
In order to address the above problem, the utility model provides a kind of heat-sink unit, in this heat-sink unit, have for supplying heat eliminating medium at the mobile internal flow path of described heat-sink unit, it is characterized in that, described heat-sink unit comprises supply unit and be arranged on the accompanying-heat cable in described internal flow path, and this accompanying-heat cable is electrically connected to described supply unit and arranges continuously along described internal flow path.
Preferably, this heat-sink unit comprises the first header, a plurality of finned tube, the second header and discharge pipe, a plurality of described finned tube each intervals arrangements and two ends separately respectively fluid are communicated with described the first header and described the second header, heat eliminating medium can be entered by the entrance of described the first header, and via being collected to described the second header after described finned tube heat radiation, finally by the described discharge pipe being communicated with described the second header fluid, discharge; Wherein, from finned tube described in each, via described the second header, to described discharge pipe, be formed with a plurality of described internal flow paths, at least part of described internal flow path, be provided with continuous described accompanying-heat cable.
Preferably, described in each, in finned tube, described the second header and described discharge pipe, be provided with described accompanying-heat cable, and the described accompanying-heat cable arranging in finned tube described in each distributes and forms overlap joint with the interior described accompanying-heat cable arranging of described the second header, and the described accompanying-heat cable arranging in the described accompanying-heat cable of setting and described discharge pipe in described the second header forms overlap joint.
Preferably, described accompanying-heat cable is stainless steel armouring accompanying-heat cable.
Preferably, the diameter of described armored cable is less than or equal to 8 millimeters.
Preferably, the power of described armored cable is 15-269W/m.
Preferably, the upper limit temperature of heat tolerance of described armored cable is 600 ℃.
The utility model also provides a kind of direct air cooling system, this direct air cooling system comprises Air-Cooling Island and jet chimney, described Air-Cooling Island comprises the heat-sink unit described in a plurality of above any one schemes, and a plurality of described heat-sink units are connected in parallel to each other and described internal flow path is separately communicated with described jet chimney.
Preferably, the discharge duct that described jet chimney is steam turbine.
Pass through technique scheme, owing to having arranged continuous accompanying-heat cable in the internal flow path of heat-sink unit, therefore can heat in all directions the inside of heat-sink unit, prevent that heat-sink unit inside from freezing, guarantee that heat-sink unit is in the normal use of cold snap, reduced because of heat-sink unit inside and freezed to have caused device damage, reduced cost and improved production efficiency.
Other feature and advantage of the present utility model partly in detail are described the specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for description, is used from explanation the utility model, but does not form restriction of the present utility model with the specific embodiment one below.In the accompanying drawings:
Fig. 1 is according to the structural representation of the heat-sink unit of a kind of specific embodiment of the present utility model.
Description of reference numerals
1 first header 2 finned tubes
3 second header 4 discharge pipes
5 accompanying-heat cables
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
The utility model provides a kind of heat-sink unit, in this heat-sink unit, have for supplying heat eliminating medium at the mobile internal flow path of described heat-sink unit, wherein, described heat-sink unit comprises supply unit and be arranged on the accompanying-heat cable 5 in described internal flow path, and this accompanying-heat cable 5 is electrically connected on described supply unit and arranges continuously along described internal flow path.
Described heat-sink unit can be a part for large-scale cooling system, this heat-sink unit for corresponding heat eliminating medium (for example has complete internal flow path, water, steam etc.) heat radiation of flowing therein, particularly, heat eliminating medium can enter from the entrance of this heat-sink unit and from outlet, discharge to facilitate recovery after the mobile heat radiation completing described internal flow path.In order to prevent that described heat eliminating medium from freezing because temperature is too low in internal flow path, heat-sink unit of the present utility model is provided with accompanying-heat cable 5 in described internal flow path.Accompanying-heat cable 5 is electrically connected to for electrical heating with described supply unit, and accompanying-heat cable 5 flow direction along described heat eliminating medium in described internal flow path arranges continuously, therefore can carry out comprehensive, without the heating at dead angle, solve operation.Thereby accompanying-heat cable 5 can be single longer cable to be arranged in a plurality of parts of described heat-sink unit, can be also that multi-cable is connected to form continuous inside heating arrangement with (can the be non-electric-connecting) form together that is connected to each other.
According to a kind of specific embodiment of the present utility model, as shown in Figure 1, described heat-sink unit comprises the first header 1, a plurality of finned tube 2, the second header 3 and discharge pipe 4, a plurality of finned tube 2 each intervals arrangements and two ends separately respectively fluid are communicated with the first header 1 and the second header 2, heat eliminating medium can be entered by the entrance of the first header 1, and via being collected to the second header 3 after finned tube 2 heat radiations, finally by the discharge pipe 4 being communicated with the second header 3 fluids, discharge; Wherein, from each finned tube 2, via the second header 3, to discharge pipe 4, be formed with a plurality of described internal flow paths, at least part of described internal flow path, be provided with continuous accompanying-heat cable 5.
The above is a kind of concrete form of described heat-sink unit, in this heat-sink unit, the first header 1 receives heat eliminating medium be transported to finned tube 2, finned tube 2 is main thermal component, and described heat eliminating medium enters for reclaiming the second header 3 of heat eliminating medium and discharging from discharge pipe 4 after finned tube 2 flows heat radiation.Be arranged on accompanying-heat cable 5 in finned tube 2, the second header 3 and discharge pipe 4 can by the through hole on each parts be arranged on outside power supply and be connected, and accompanying-heat cable 5 can be connected to each other (can be non-electric-connecting) to be arranged in continuously in the described internal flow path of part.
In operating process, after can freezing at the heat eliminating medium of heat-sink unit inside, opening described power supply is accompanying-heat cable 5 power supplies, accompanying-heat cable 5 is heated up and melt the described heat eliminating medium freezing in described internal flow path, makes described internal flow path recover fluid and is communicated with; Also can be according to concrete weather conditions, interval predetermined time is opened described power supply, by 5 pairs of described internal flow paths heating of accompanying-heat cable, prevents that it from freezing; Can also remain described electric power starting, guarantee that minimum temperature in described internal flow path freezes preventing.
For guaranteeing that heat-sink unit is carried out to omnibearing thawing, in each finned tube 2, the second header 3 and discharge pipe 4, be provided with accompanying-heat cable 5, and the accompanying-heat cable 5 of each finned tube 2 interior settings distributes and forms overlap joint with the accompanying-heat cable 5 of the second header 3 interior settings, and the accompanying-heat cable 5 of the second header 3 interior settings forms overlap joint with the accompanying-heat cable of discharge pipe 4 interior settings 5.Higher and the flow velocity of the temperature of the described heat eliminating medium receiving due to the first header 1 is more generally not easy to freeze, therefore accompanying-heat cable 5 is not set, certainly under specific condition, (climatological region that temperature is low especially) also can arrange accompanying-heat cable 5 in the first header 1; The general good material of heat-conductive characteristic that adopts of finned tube 2 is made, and described heat eliminating medium is significantly cooling (for example steam-reforming is water) rapidly therein, so finned tube 2 is easy to freeze at cold snap, therefore accompanying-heat cable 5 need to be set; What in the second header 3 and discharge pipe 4, flow transmission is the described heat eliminating medium after heat radiation, therefore more needs to arrange accompanying-heat cable 5.Accompanying-heat cable in each several part 5 is overlapped and can prevent the breakpoint that thaws.
Particularly, accompanying-heat cable 5 is preferably stainless steel armouring accompanying-heat cable.Stainless steel armouring accompanying-heat cable be a kind of using metal as oversheath, thermo electric material as heater element, magnesia powder the special heating cables as insulation, there is good mechanical strength, corrosion-resistant, airtight insulating properties are good, can prevent electric leakage, can heat medium not produced and be polluted and impact, safe and reliable.
According to a kind of specific embodiment of the present utility model, the diameter of armored cable 5 is less than or equal to 8 millimeters, and particularly, the diameter of armored cable 5 is 4-8mm.Because the area of section of armored cable 5 is very little, therefore in the internal flow path of described heat-sink unit, arrange after armored cable 5, the resistance that armored cable 5 can be not larger to the mobile generation of heat eliminating medium, can not affect the normal circulation of heat eliminating medium.
In addition, the power of armored cable 5 is 15-269W/m.The power of the unit length of armored cable 5 is relevant with the resistance of the element length of armored cable 5, in the situation that the resistance of armored cable 5 is constant, the voltage of the power supply that can access by adjusting regulates the heating power of armored cable 5.
In addition, the upper limit temperature of heat tolerance of armored cable 5 is 600 ℃.Because the temperature of described heat-sink unit inside is very high at some time point and/or some position, therefore need armored cable 5 to there is higher temperature capacity, to guarantee the not damaged normal use of armored cable 5.
In addition, the utility model also provides a kind of direct air cooling system, this direct air cooling system comprises Air-Cooling Island and jet chimney, wherein, described Air-Cooling Island comprises the heat-sink unit described in the above any one scheme of a plurality of bases, and a plurality of described heat-sink units are connected in parallel to each other and described internal flow path is separately communicated with described jet chimney.Described jet chimney is transported to described Air-Cooling Island by the water vapour of high temperature, described Air-Cooling Island can be a plurality of be connected in parallel to each other be erected at high aerial described heat-sink unit, water vapour enters after the internal flow path heat radiation of described heat-sink unit and is converted into after condensed water reclaims by discharge pipe 4 and again utilizes.
Particularly, the discharge duct that described jet chimney is steam turbine, described direct air cooling system is cooling for the water vapour of thermoelectric generator.Certainly, described direct air cooling system also can be for the heat radiation of other fluids, as gas, liquid or gas-liquid mixture.
Below describe by reference to the accompanying drawings preferred embodiment of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characterictic described in the above-mentioned specific embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible combinations.
In addition, between various embodiment of the present utility model, also can be combined, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. a heat-sink unit, in this heat-sink unit, have for supplying heat eliminating medium at the mobile internal flow path of described heat-sink unit, it is characterized in that, described heat-sink unit comprises supply unit and be arranged on the accompanying-heat cable (5) in described internal flow path, and this accompanying-heat cable (5) is electrically connected on described supply unit and arranges continuously along described internal flow path.
2. heat-sink unit according to claim 1, it is characterized in that, this heat-sink unit comprises the first header (1), a plurality of finned tubes (2), the second header (3) and discharge pipe (4), the arrangement of a plurality of described finned tubes (2) each interval and two ends separately respectively fluid are communicated with described the first header (1) and described the second header (2), heat eliminating medium can be entered by the entrance of described the first header (1), and via being collected to described the second header (3) after described finned tube (2) heat radiation, finally by the described discharge pipe (4) being communicated with described the second header (3) fluid, discharge,
Wherein, from finned tube described in each (2), via described the second header (3), to described discharge pipe (4), be formed with a plurality of described internal flow paths, at least part of described internal flow path, be provided with continuous described accompanying-heat cable (5).
3. heat-sink unit according to claim 2, it is characterized in that, in finned tube described in each (2), described the second header (3) and described discharge pipe (4), be provided with described accompanying-heat cable (5), and the described accompanying-heat cable (5) arranging in finned tube described in each (2) forms overlap joint with the described accompanying-heat cable (5) of the interior setting of described the second header (3) respectively, in described the second header (3), the described accompanying-heat cable (5) of setting forms overlap joint with the interior described accompanying-heat cable (5) arranging of described discharge pipe (4) respectively.
4. heat-sink unit according to claim 2, is characterized in that, described accompanying-heat cable (5) is stainless steel armouring accompanying-heat cable.
5. heat-sink unit according to claim 4, is characterized in that, the diameter of described armored cable (5) is less than or equal to 8 millimeters.
6. heat-sink unit according to claim 4, is characterized in that, the power of described armored cable (5) is 15-269W/m.
7. heat-sink unit according to claim 4, is characterized in that, the upper limit temperature of heat tolerance of described armored cable (5) is 600 ℃.
8. a direct air cooling system, this direct air cooling system comprises Air-Cooling Island and jet chimney, it is characterized in that, described Air-Cooling Island comprises a plurality of according to the heat-sink unit described in any one in claim 2-7, and a plurality of described heat-sink units are connected in parallel to each other and described internal flow path is separately communicated with described jet chimney.
9. direct air cooling system according to claim 8, is characterized in that, the discharge duct that described jet chimney is steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191789.9U CN203837514U (en) | 2014-04-18 | 2014-04-18 | Heat dissipation unit and direct air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420191789.9U CN203837514U (en) | 2014-04-18 | 2014-04-18 | Heat dissipation unit and direct air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837514U true CN203837514U (en) | 2014-09-17 |
Family
ID=51515340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420191789.9U Expired - Lifetime CN203837514U (en) | 2014-04-18 | 2014-04-18 | Heat dissipation unit and direct air cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806097A (en) * | 2014-12-30 | 2016-07-27 | 重庆联合机器制造有限公司 | Multi-passage multi-flow air cooler and manufacturing method thereof |
| CN108444313A (en) * | 2018-04-30 | 2018-08-24 | 郑丽 | A kind of combustion engine compressor and air blower inlet deicing, defrosting and dehumidification device |
-
2014
- 2014-04-18 CN CN201420191789.9U patent/CN203837514U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806097A (en) * | 2014-12-30 | 2016-07-27 | 重庆联合机器制造有限公司 | Multi-passage multi-flow air cooler and manufacturing method thereof |
| CN108444313A (en) * | 2018-04-30 | 2018-08-24 | 郑丽 | A kind of combustion engine compressor and air blower inlet deicing, defrosting and dehumidification device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202483610U (en) | Device for cooling underground cable tunnel | |
| CN109638378B (en) | Heat management device of new energy automobile battery power system | |
| CN203837514U (en) | Heat dissipation unit and direct air cooling system | |
| CN103618479A (en) | Power-generating and energy-storing system based on waste heat of diesel generating set of South-Pole astronomical observation station in South Pole | |
| CN104061644B (en) | Rapid cooling device | |
| CN104867526A (en) | Passive containment cooling system provided with heat pipe liquid guide devices | |
| CN203503757U (en) | Battery box heat management system of electric automobile | |
| CN106455417B (en) | Converter valve cooling system and direct current transmission equipment using same | |
| CN202748445U (en) | Thermal-vacuum testing system of satellite travelling wave tube | |
| CN207006903U (en) | condenser and heat energy utilization system | |
| CN104727283B (en) | Prevent the water surface to freeze the protection device of bridge pier and using method thereof | |
| CN203980706U (en) | A kind of liquid nitrogen gasification refrigeration system | |
| CN209910186U (en) | Stepped heating solar air heat collector | |
| CN103075894B (en) | Steam discharge pipeline structure for directly preventing freezing of air condenser in winter | |
| CN210892820U (en) | Automatic heat preservation system of coal mine | |
| CN207438702U (en) | A kind of instant heating type electric heating furnace of far infrared | |
| CN201306598Y (en) | Easy-deicing air-bath gasifier | |
| CN101424374A (en) | Ice-easy-removing air-bathing gasifier | |
| CN201909574U (en) | Air cooler pipe box with flow deflectors | |
| CN206256956U (en) | Double air pump cooling devices of radiator of car engine | |
| CN206256957U (en) | The quickly cooling device of radiator of car engine | |
| CN206256955U (en) | Air cooling device of water tank of automobile | |
| CN107166984A (en) | Condenser and heat energy utilization system | |
| CN104165405B (en) | Heating device of purification room applied after biomass gasification station is provided with firewall | |
| CN210049902U (en) | Cold-proof and anti-freezing structure of hot water pipe network at tunnel portal section |
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: 20140917 |