CN104019512A - Evaporative cooling water and air conditioning system for frequency conversion machine room of power station - Google Patents
Evaporative cooling water and air conditioning system for frequency conversion machine room of power station Download PDFInfo
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- CN104019512A CN104019512A CN201410272858.3A CN201410272858A CN104019512A CN 104019512 A CN104019512 A CN 104019512A CN 201410272858 A CN201410272858 A CN 201410272858A CN 104019512 A CN104019512 A CN 104019512A
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- machine room
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Abstract
The invention discloses an evaporative cooling water and air conditioning system for a frequency conversion machine room of a power station. The evaporative cooling water and air conditioning system for the frequency conversion machine room of the power station comprises a two-stage evaporative cooling cold air/cold water composite air conditioning unit, wherein a return air inlet of the two-stage evaporative cooling cold air/cold water composite air conditioning unit is connected with a first return air pipe, the first return air pipe is communicated with an exhaust duct and a second return air pipe respectively, the second return air pipe is communicated with the frequency conversion machine room, an air supply outlet of the two-stage evaporative cooling cold air/cold water composite air conditioning unit is communicated with a plurality of lower air supply outlets formed in a floor inside the frequency conversion machine room through an air supply pipe, and the two-stage evaporative cooling cold air/cold water composite air conditioning unit is connected with a dry type air blower coil arranged inside the frequency conversion machine room through a water pipe set. The evaporative cooling water and air conditioning system for the frequency conversion machine room of the power station can decrease the indoor temperature within a greater range, reduce cooling loads borne by an air system and reduce investment and energy consumption of an air conditioning air pipe system, and the energy conservation effect is remarkable.
Description
Technical field
The invention belongs to air conditioner technical field, be specifically related to evaporative cooling water-air air-conditioning system for a kind of power plant frequency conversion machine room.
Background technology
Power plant frequency conversion machine room caloric value is large, and sensible heat load proportion is high, mostly adopts at present traditional force ventilation cooling method.In power plant frequency conversion machine room, temperature is higher, easily causes the operating efficiency of frequency conversion equipment to reduce, shorten its service life.Owing to mostly adopting all-air conditioning system in frequency conversion machine room, make that air output is large, air conditioning duct system and power-equipment investment higher, take up room large.
At present, indirect evaporation cooling device mainly contains plate fin type indirect evaporative cooler, horizontal tube indirect evaporation cooler etc., because its channel size is less, there is easily stifled defect in industrial plant in the higher area of air dust content and power plant etc., so limited Evaporative Cooling Air Conditioning equipment applying in such area.
Summary of the invention
The object of the present invention is to provide evaporative cooling water-air air-conditioning system for a kind of power plant frequency conversion machine room, can reduce the temperature in frequency conversion machine room, the investment and the energy consumption that reduce air conditioning duct system adopt standpipe type indirect evaporation cooler simultaneously, have reduced unit floor space.
The technical solution adopted in the present invention is, evaporative cooling water-air air-conditioning system for power plant frequency conversion machine room, include the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit, the return air inlet of the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is connected with the first backwind tube, the first backwind tube respectively with exhaust duct, the second backwind tube is communicated with, the second backwind tube is communicated with frequency conversion machine room, the air outlet of the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is communicated with a plurality of lower air outlet arranging on floor in frequency conversion machine room by ajutage, the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is connected with the dry-type fan coil arranging in frequency conversion machine room by water pipe group.
Feature of the present invention is also:
The termination that the second backwind tube stretches in frequency conversion machine room is provided with a plurality of local exhaust mouths, and local exhaust mouth is corresponding with the frequency conversion equipment of below.
In the second backwind tube, be provided with return fan.
The mouth of pipe place of exhaust duct is provided with exhaust valve.
The cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit, include machine unit shell, machine unit shell is respectively arranged with air inlet, air outlet on relative two side, in machine unit shell, by a wind, enter rear flow direction and be disposed with wind mixed chamber, standpipe type indirect evaporation cooler, hydrokinetic type water injector and pressure fan, on machine unit shell roof corresponding to wind mixed chamber top, be provided with return air inlet, on machine unit shell roof corresponding to standpipe type indirect evaporation cooler top, be provided with auxiliary air entrance.
In air inlet, be provided with air inlet valve; In return air inlet, be provided with air returning valve; In auxiliary air entrance, be provided with overfire air fan.
Standpipe type indirect evaporation cooler, include vertical heat exchanging pipe group, the top of vertical heat exchanging pipe group is provided with water-locator, and the below of vertical heat exchanging pipe group is provided with header tank a, header tank a is connected with water-locator by circulating water pipe, is provided with water circulating pump a on circulating water pipe;
Between vertical heat exchanging Guan Zuyu header tank a, form auxiliary air runner, on machine unit shell two side corresponding to auxiliary air runner, be provided with auxiliary air outlet.
Vertical heat exchanging pipe group is comprised of the many heat exchanger tubes that vertically arrange.
Auxiliary air exit is provided with water fender b.
Hydrokinetic type water injector, includes the water conservancy diversion grid, hydrokinetic type spray chamber and the water fender a that by the mobile direction of primary air, set gradually, and the bottom of water conservancy diversion grid, hydrokinetic type spray chamber and water fender a is provided with header tank b;
Hydrokinetic type spray chamber consists of two hard-wired a plurality of target formula impinging stream nozzles to spray vertically and on the spray row of tubes of parallel interval setting and spray row of tubes, and two spray row of tubes are communicated with;
Header tank b is connected with the water inlet of dry-type fan coil by feed pipe, and spray row of tubes is connected with the delivery port of dry-type fan coil by return pipe, forms closed-loop path, is provided with water circulating pump b on feed pipe.
Beneficial effect of the present invention is:
1) evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant of the present invention, reduces the load that wind system is born, and reduces air output, reduces investment and the operating cost of air-line system.
2) frequency conversion machine room in power plant of the present invention, with in evaporative cooling water-air air-conditioning system, adopts standpipe type indirect evaporation cooler, and primary air is flowed through outside pipe, and runner is wider, slow down runner stops up; In auxiliary air and recirculated water flowing pipe, the gravity of recirculated water prevents from managing inner flow passage from souring and stops up, and reduces floor space simultaneously.
3) frequency conversion machine room in power plant of the present invention is with in evaporative cooling water-air air-conditioning system, and directly evaporative cooling adopts hydrokinetic type spray chamber, and its formula impinging stream nozzle atomizing effect that hits is good, anti-blocking efficient.
4) frequency conversion machine room in power plant of the present invention is with in evaporative cooling water-air air-conditioning system, standpipe type indirect evaporation cooler auxiliary air adopts top forced, auxiliary air and recirculated water following current, prevent that air and water adverse current from causing inside pipe wall moisture film to disperse, be beneficial in pipe and form uniform and stable moisture film, improve heat exchange efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant of the present invention;
Fig. 2 is the structural representation of evaporative cooling water-air air-conditioning system internal riser formula indirect evaporation cooler for frequency conversion machine room in power plant of the present invention.
In figure, 1. air inlet valve, 2. wind mixed chamber, 3. water circulating pump a, 4. header tank a, 5. auxiliary air outlet, 6. vertical heat exchanging pipe group, 7. header tank b, 8. water circulating pump b, 9. water fender a, 10. pressure fan, 11. ajutages, 12. feed pipes, 13. return pipes, 14. dry-type fan coils, 15. frequency conversion machine rooms, 16. local exhaust mouths, 17. frequency conversion equipments, 18. times air outlets, 19. return fans, 20. exhaust valves, 21. air returning valves, 22. overfire air fans, 23. water-locators, 24. water conservancy diversion grids, 25. target formula impinging stream nozzles, 26. water fender b, 27. first backwind tubes, 28. second backwind tubes.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant of the present invention, its structure as shown in Figure 1, include the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit, the return air inlet of the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is connected with the first backwind tube 27, the first backwind tube 27 respectively with exhaust duct, the second backwind tube 28 is communicated with, the second backwind tube 28 is communicated with frequency conversion machine room 15, the air outlet of the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is communicated with a plurality of lower air outlet 18 arranging on the interior floor of frequency conversion machine room 15 by ajutage 11, the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit is connected with the dry-type fan coil 14 of frequency conversion machine room 15 interior settings by water pipe group.
The termination that the second backwind tube 28 stretches in frequency conversion machine room 15 is provided with a plurality of local exhaust mouths 16, and local exhaust mouth 16 is oppositely arranged with the frequency conversion equipment 17 of below.
In the second backwind tube 28, be provided with return fan 19.
The mouth of pipe place of exhaust duct is provided with exhaust valve 20.
Air outlet 18, local exhaust mouth 16 under the interior employing of frequency conversion machine room 15, air current composition is more conducive to the discharge of equipment heating amount, reduces indoor temperature.
The cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit, its structure as shown in Figure 1, include machine unit shell, machine unit shell is respectively arranged with air inlet, air outlet on relative two side, in machine unit shell, by a wind, enter rear flow direction and be disposed with wind mixed chamber 2, standpipe type indirect evaporation cooler, hydrokinetic type water injector and pressure fan 10, on machine unit shell roof corresponding to wind mixed chamber 2 tops, be provided with return air inlet, on machine unit shell roof corresponding to standpipe type indirect evaporation cooler top, be provided with auxiliary air entrance.
In air inlet, be provided with air inlet valve 1; In return air inlet, be provided with air returning valve 21; In auxiliary air entrance, be provided with overfire air fan 22.
Standpipe type indirect evaporation cooler, as shown in Figures 1 and 2, include vertical heat exchanging pipe group 6, the top of vertical heat exchanging pipe group 6 is provided with water-locator 23, the below of vertical heat exchanging pipe group 6 is provided with header tank a4, header tank a4 is connected with water-locator 23 by circulating water pipe, is provided with water circulating pump a3 on circulating water pipe; Between vertical heat exchanging pipe group 6 and header tank a4, form auxiliary air runner, on machine unit shell two side corresponding to auxiliary air runner, be provided with auxiliary air outlet 5.
Vertical heat exchanging pipe group 6, is comprised of the many heat exchanger tubes that vertically arrange.
As shown in Figure 2, auxiliary air exports 5 places and is provided with water fender b26.
Adopt standpipe type indirect evaporation cooler, auxiliary air and recirculated water following current, anti-blocking, reduced floor space, easily form uniform and stable circulation moisture film, raising heat exchange efficiency.
Hydrokinetic type water injector, its structure as shown in Figure 2, include the water conservancy diversion grid 24, hydrokinetic type spray chamber and the water fender a9 that by the mobile direction of primary air, set gradually, the bottom of water conservancy diversion grid 24, hydrokinetic type spray chamber and water fender a9 is provided with header tank b7; Hydrokinetic type spray chamber consists of two hard-wired a plurality of target formula impinging stream nozzles 25 to spray vertically and on the spray row of tubes of parallel interval setting and spray row of tubes, and two spray row of tubes are communicated with; Header tank b7 is connected with the water inlet of dry-type fan coil 14 by feed pipe 12, and spray row of tubes is connected with the delivery port of dry-type fan coil 14 by return pipe 13, forms closed-loop path, is provided with water circulating pump b8 on feed pipe 12.
Adopt hydrokinetic type water injector, use target formula impinging stream nozzle 25, alleviate the obstruction causing because of air dirt.
Evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant of the present invention, its wind system workflow is as follows:
(1) supply air system:
Outdoor air is entered in machine unit shell by air inlet under the effect of air inlet valve 1, mixes wind mixed chamber 2 is interior with the return air being entered by return air inlet under air returning valve 21 effect, and vertical heat exchanging pipe group 6 places of the standpipe type indirect evaporation cooler of then flowing through etc. are but clammy; In cooled air enters hydrokinetic type water injector, the droplet going out with 25 atomizations of target formula impinging stream nozzle in hydrokinetic type spray chamber directly contacts the wet exchange of heat occurs, air themperature is lower, then through water fender a9, collected water, by pressure fan 10, through air outlet, deliver to ajutage 11, by ajutage 11, be delivered to frequency conversion machine room 15 again, finally by a plurality of lower air outlet 18 arranging on the interior floor of frequency conversion machine room 15, send into indoor.
(2) exhaust system:
Under the effect of return fan 19, air in frequency conversion machine room 15 is entered in the second backwind tube 28 by local exhaust mouth 16, and return air is divided into two parts, a part drains into outdoor under the effect of exhaust valve 20, and another part enters the wind mixed chamber 2 in machine unit shell by the first backwind tube 27, return air inlet under the effect of air returning valve 21.
(3) secondary air system of standpipe type indirect evaporation cooler:
Under the effect of overfire air fan 22, outdoor air is pressed in vertical heat exchanging pipe group 6 by the auxiliary air entrance on standpipe type indirect evaporation cooler top, there is the wet exchange of heat with the moisture film pasting at heat exchanger tube inwall, finally by being discharged by auxiliary air outlet 5 after water fender b26 collecting belt water.
Evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant of the present invention, its water system workflow is as follows:
(1) high temperature cold water system:
High temperature cold water in header tank b7, under the effect of water circulating pump b8, is delivered to dry-type fan coil 14 through feed pipe 12, carries out heat exchange with the air in frequency conversion machine room 15, maintains indoor air themperature; The spray row of tubes of high temperature cold water backwater after heat exchange in return pipe 13 is transmitted back to hydrokinetic type spray chamber, is sprayed by 25 atomizations of target formula impinging stream nozzle, contacts the wet transmission cooling of heat occurs with primary air, moves in circles.
(2) tube type indirect evaporative cooler 6 circulations:
Recirculated water is in header tank a4, under the effect of water circulating pump a3, enter circulating water pipe and be delivered to water-locator 23, by water-locator 23, spray and paste the heat exchanger tube inwall at standpipe type indirect evaporation cooler, contact the wet exchange of generation heat with auxiliary air following current from bottom to top simultaneously, and with pipe outside primary air indirect heat exchange, finally fall under gravity in cyclic water tank a4 repetitive cycling.
Frequency conversion machine room in power plant of the present invention with evaporative cooling water-air air-conditioning system mainly by standpipe indirectly-the cooling cold-wind/cold-water combined air conditioner of hydrokinetic type spray chamber double flash evaporation unit, air-line system and frequency conversion machine room form.Adopt evaporative cooling water-air air-conditioning system, the reduction indoor temperature that more traditional force ventilation mode can be wider reduces the refrigeration duty that wind system is born simultaneously, reduces air output, reduces investment and the energy consumption of air conditioning duct system, and energy-saving effect is remarkable.
Claims (10)
1. evaporative cooling water-air air-conditioning system for power plant frequency conversion machine room, it is characterized in that, include the cooling cold-wind/cold-water combined air conditioner of double flash evaporation unit, the return air inlet of the cooling cold-wind/cold-water combined air conditioner of described double flash evaporation unit is connected with the first backwind tube (27), described the first backwind tube (27) respectively with exhaust duct, the second backwind tube (28) is communicated with, described the second backwind tube (28) is communicated with frequency conversion machine room (15), the air outlet of the cooling cold-wind/cold-water combined air conditioner of described double flash evaporation unit is communicated with a plurality of lower air outlet (18) arranging on the interior floor of frequency conversion machine room (15) by ajutage (11), the cooling cold-wind/cold-water combined air conditioner of described double flash evaporation unit is connected with the dry-type fan coil (14) arranging in frequency conversion machine room (15) by water pipe group.
2. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 1, it is characterized in that, the termination that described the second backwind tube (28) stretches in frequency conversion machine room (15) is provided with a plurality of local exhaust mouths (16), and described local exhaust mouth (16) is corresponding with the frequency conversion equipment (17) of below.
3. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 1 and 2, is characterized in that, is provided with return fan (19) in described the second backwind tube (28).
4. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 1, is characterized in that, the mouth of pipe place of described exhaust duct is provided with exhaust valve (20).
5. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 1, it is characterized in that, the cooling cold-wind/cold-water combined air conditioner of described double flash evaporation unit, include machine unit shell, described machine unit shell is respectively arranged with air inlet on relative two side, air outlet, in described machine unit shell, by a wind, enter rear flow direction and be disposed with wind mixed chamber (2), standpipe type indirect evaporation cooler, hydrokinetic type water injector and pressure fan (10), on machine unit shell roof corresponding to described wind mixed chamber (2) top, be provided with return air inlet, on the machine unit shell roof of described standpipe type indirect evaporation cooler top correspondence, be provided with auxiliary air entrance.
6. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 5, is characterized in that, is provided with air inlet valve (1) in described air inlet; In described return air inlet, be provided with air returning valve (21); In described auxiliary air entrance, be provided with overfire air fan (22).
7. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 5, it is characterized in that, described standpipe type indirect evaporation cooler, include vertical heat exchanging pipe group (6), the top of described vertical heat exchanging pipe group (6) is provided with water-locator (23), the below of described vertical heat exchanging pipe group (6) is provided with header tank a (4), described header tank a (4) is connected with water-locator (23) by circulating water pipe, is provided with water circulating pump a (3) on described circulating water pipe;
Between described vertical heat exchanging pipe group (6) and header tank a (4), form auxiliary air runner, on machine unit shell two side corresponding to described auxiliary air runner, be provided with auxiliary air outlet (5).
8. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 7, is characterized in that, described vertical heat exchanging pipe group (6) is comprised of the many heat exchanger tubes that vertically arrange.
9. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 7, is characterized in that, described auxiliary air outlet (5) locates to be provided with water fender b (26).
10. evaporative cooling water-air air-conditioning system for frequency conversion machine room in power plant according to claim 5, it is characterized in that, described hydrokinetic type water injector, include the water conservancy diversion grid (24), hydrokinetic type spray chamber and the water fender a (9) that by the mobile direction of primary air, set gradually, the bottom of described water conservancy diversion grid (24), hydrokinetic type spray chamber and water fender a (9) is provided with header tank b (7);
Hard-wired a plurality of formations of the target formula impinging stream nozzle (25) to spray on the spray row of tubes that described hydrokinetic type spray chamber is vertical by two and parallel interval arranges and spray row of tubes, two spray row of tubes are communicated with;
Described header tank b (7) is connected with the water inlet of dry-type fan coil (14) by feed pipe (12), described spray row of tubes is connected with the delivery port of dry-type fan coil (14) by return pipe (13), form closed-loop path, on described feed pipe (12), be provided with water circulating pump b (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410272858.3A CN104019512B (en) | 2014-06-18 | 2014-06-18 | Evaporative cooling water and air conditioning system for frequency conversion machine room of power station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410272858.3A CN104019512B (en) | 2014-06-18 | 2014-06-18 | Evaporative cooling water and air conditioning system for frequency conversion machine room of power station |
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| CN104019512A true CN104019512A (en) | 2014-09-03 |
| CN104019512B CN104019512B (en) | 2017-01-18 |
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| CN201410272858.3A Expired - Fee Related CN104019512B (en) | 2014-06-18 | 2014-06-18 | Evaporative cooling water and air conditioning system for frequency conversion machine room of power station |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102009008801A1 (en) * | 2009-02-05 | 2010-08-12 | Bam Deutschland Ag | Building and process for tempering and aerating the structure |
| CN202660664U (en) * | 2012-05-28 | 2013-01-09 | 西安工程大学 | Modularized dew point indirect and direct evaporative cooling air-condition |
| CN103104954A (en) * | 2013-02-05 | 2013-05-15 | 西安工程大学 | Air conditioner system with double cold source unified operation to recover indoor exhausted air-cooling heat |
| CN203323274U (en) * | 2013-05-24 | 2013-12-04 | 西安工程大学 | Large-small environment evaporative cooling, mechanical cooling and mixed ventilation composite air conditioning system |
| CN203364295U (en) * | 2013-06-08 | 2013-12-25 | 西安工程大学 | Textile evaporation type energy-saving and purifying air conditioning device |
| CN203907860U (en) * | 2014-06-18 | 2014-10-29 | 西安工程大学 | Evaporative cooling water-air conditioning device for power station frequency conversion machine room |
-
2014
- 2014-06-18 CN CN201410272858.3A patent/CN104019512B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009008801A1 (en) * | 2009-02-05 | 2010-08-12 | Bam Deutschland Ag | Building and process for tempering and aerating the structure |
| CN202660664U (en) * | 2012-05-28 | 2013-01-09 | 西安工程大学 | Modularized dew point indirect and direct evaporative cooling air-condition |
| CN103104954A (en) * | 2013-02-05 | 2013-05-15 | 西安工程大学 | Air conditioner system with double cold source unified operation to recover indoor exhausted air-cooling heat |
| CN203323274U (en) * | 2013-05-24 | 2013-12-04 | 西安工程大学 | Large-small environment evaporative cooling, mechanical cooling and mixed ventilation composite air conditioning system |
| CN203364295U (en) * | 2013-06-08 | 2013-12-25 | 西安工程大学 | Textile evaporation type energy-saving and purifying air conditioning device |
| CN203907860U (en) * | 2014-06-18 | 2014-10-29 | 西安工程大学 | Evaporative cooling water-air conditioning device for power station frequency conversion machine room |
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| CN104019512B (en) | 2017-01-18 |
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Granted publication date: 20170118 Termination date: 20170618 |