Forced draft cooling system
The utility model relates to a kind of forced draft cooling system, belongs to cooling device technical field.
Closed cooling tower is conventional cooling device in producing, and it is generally that pipe heat exchanger is placed in tower, the heat exchange assurance cooling-down effect of air, shower water and recirculated water by circulation.Owing to being closed cycle, it can guarantee that water quality is not contaminated, has well protected the efficient operation of main equipment, has improved service life.When outside air temperature is lower, can cut off water-spray system, play water-saving result.Along with national energy-saving reduces discharging the enforcement of policy and the scarcity day by day of water resource, closed cooling tower was widely used in industries such as Ferrous Metallurgy, power electronics, machining, air-conditioning systems in recent years.But in the higher occasion of some cooling requirement, existing closed cooling tower cannot meet the demands, if need to strengthen cooling capacity, will increase cooling tower volume, and this can greatly be subject to the restriction of installing space.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of forced draft cooling system is provided, and it is simple in structure, reasonable in design, good cooling results.
The technical scheme providing according to the utility model: forced draft cooling system, comprise exhaust tube, blower fan, coil system and spray thrower, it is characterized in that: described exhaust tube one side is provided with air inlet, described assembling is at air inlet place, and described exhaust tube top is provided with ventilation window; Described coil system is arranged in exhaust tube, and the hot fluid import of coil system is upper, cold fluid outlet under; Described coil system comprises dry type fin cooling coil and vaporation-type coil pipe, described dry type fin cooling coil is arranged on the topmost in exhaust tube, described spray thrower is arranged under dry type fin cooling coil, and described vaporation-type coil pipe is arranged under spray thrower; Described exhaust tube bottom is provided with water receiving tank, and described water receiving tank bottom one side is provided with discharge outlet, and discharge outlet is connected with the water inlet of spray thrower with circulation line by spray pump.
As further improvement of the utility model, under described vaporation-type coil pipe, be provided with filler in the space directly over water receiving tank.
As further improvement of the utility model, the version of described filler is honeycomb fashion.
As further improvement of the utility model, in the space under described spray thrower top, dry type fin cooling coil, be provided with dehydrator.
As further improvement of the utility model, on described water receiving tank, be provided with water supplement port, overfall and sewage draining exit.
compared with prior art, advantage is the utility model:the utility model is simple in structure, reasonable in design, dry type fin cooling coil in coil system dispels the heat for the first time to entering the hot fluid of coil system, and then it is interior cooling by shower water and cold dry air to enter vaporation-type coil pipe, has greatly improved cooling effectiveness; By increased filler in exhaust tube, extend the cooling water time of staying in addition, increased heat exchange area, increased heat exchange amount, improved cooling effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in the figure: the forced draft cooling system in embodiment is mainly comprised of parts such as exhaust tube 1, blower fan 2, water receiving tank 3, spray pump 4, circulation line 5, filler 6, coil system 7, spray thrower 8 and dehydrators 9.
As shown in Figure 1, described exhaust tube 1 one sides are provided with air inlet, and described blower fan 2 is arranged on air inlet place, and described exhaust tube 1 top is provided with ventilation window; Described coil system 7 is arranged in exhaust tube 1, and the hot fluid import 7a of coil system 7 is upper, cold fluid outlet 7b under; Described coil system 7 comprises dry type fin cooling coil 7.1 and vaporation-type coil pipe 7.2 two parts, the topmost that described dry type fin cooling coil 7.1 is arranged in exhaust tube 1, described spray thrower 8 is arranged under dry type fin cooling coil 7.1, and described vaporation-type coil pipe 7.2 is arranged under spray thrower 8; Described exhaust tube 1 bottom is provided with water receiving tank 3, and described water receiving tank 3 bottom one sides are provided with discharge outlet, and discharge outlet is connected with the water inlet of spray thrower 8 with circulation line 5 by spray pump 4; Described filler 6 is arranged under coil system 7, in the space directly over water receiving tank 3, and filler 6 can extend the cooling water time of staying, increases heat exchange area, increases heat exchange amount.In the utility model embodiment, the version of described filler 6 is honeycomb fashion.
As shown in Figure 1, the steam vapour amount of taking out of when reducing Bas Discharged, extends the moisturizing time, in the space under described spray thrower 8 tops, dry type fin cooling coil 7.1, is provided with dehydrator 9.
In addition; on described water receiving tank 3, be provided with water supplement port, overfall and sewage draining exit, water supplement port is used for supplementing the lack of moisture causing because of cooling water evaporation, and overfall is used for preventing the interior hypervolia of water receiving tank 3; protection cooling tower, sewage draining exit is used for clearing up the foreign-matter contamination in water receiving tank 3.
During concrete application, hot fluid enters coil system 7 from hot fluid import 7a, after the 7.1 interior fluid interchanges of dry type fin cooling coil under enter vaporation-type coil pipe 7.2, after the interior fluid interchange of vaporation-type coil pipe 7.2, from cold fluid outlet 7b, flow out; In said process, blower fan 2 starts, suck cold dry air and blow in exhaust tube 1, cold dry air is in the interior bottom-up circulation of exhaust tube 1, cold dry air when by filler 6 and cooling water realize exchange heat one time, when by vaporation-type coil pipe 7.2, carry out again secondary exchange heat, then by discharging after dehydrator 9 dehydration, can greatly improve heat exchange efficiency like this, strengthen cooling effect.
It should be noted that, above-mentioned description is only used for description and interpretation the utility model, is not the restriction to the utility model protection domain.For the person of ordinary skill of the art, the simple modification that the technical scheme of recording with reference to the utility model is carried out or simply replacement, all within protection domain of the present utility model.