The electric heating type evaporative condenser
The utility model belongs to condenser, relates in particular to a kind of electric heating type evaporative condenser.
Evaporative condenser is the condensing unit that utilizes evaporation cooling technique design, and it is the combination of water cooled condenser and air-cooled cooling tower, have more energy-conservation than air cooled condenser, than the advantage of water cooled condenser water saving.Evaporative condenser is the high-power condensing unit that utilizes force air circulation and water evaporates that the cold-producing medium heat is taken away.Evaporative condenser is the heat of high-temperature gas cold-producing medium and make the cold-producing medium in the pipe be cooled to liquid state by gaseous state gradually in the absorption coil when utilizing the outer shower water of coil pipe partly to evaporate.Evaporative condenser is made up of parts such as battery, filler, water drenching device, axial flow blower, water leg, water pump, water collection device, casings.The operation logic of evaporative condenser: shower water is transported to the water in the water leg by water pump the shower at evaporative condenser top; The outer surface that sprays the condensation comb through nozzle forms very thin moisture film; Be evaporated to steam after the heat absorption of part water in the moisture film; All the other fall into water leg, and supply-water pump recycles.The axial flow blower forced air is inhaled into the coil pipe of flowing through from top and lower sidewall; Filler, saturated hot humid air then are discharged in the ambient atmosphere; The part water droplet of carrying secretly in the hot humid air is held back through water collection device; Control water droplet effectively and fly away loss, the lost vapor in the atmosphere that causes replenishes cooling water by ball-cock assembly control in system.At present, along with the development of industries such as food, chemical industry, pharmacy, every profession and trade is to the corresponding increase of demand of refrigeration plant, and box evaporative condenser uses in marketing.The patent No. (ZL200720030599.9) discloses a kind of box type evaporative condenser; Casing, air inlet pipe, discharging tube, water spray thrower, water pump, blower fan, water-collecting tray are arranged, it is characterized in that the HTHP air inlet pipe is connected with vent valve, the HTHP air inlet pipe is communicated with gas tank; Gas tank is communicated with the straight tube bundle of condensation at middle part in the casing; The HTHP air inlet pipe also is communicated with the liquid case, and liquid case bottom is communicated with discharging tube, and there is upper and lower dividing plate at the middle part in the casing; Gas tank and liquid case are arranged respectively on the upper and lower dividing plate, all open aperture on the last lower clapboard; There is the water spray thrower the straight tube bundle of condensation top, and water blocking device is equipped with on water spray thrower top, establishes access door on the side of water blocking device lower part box; Spray thrower stretches out casing through water pipe, and water pipe is communicated with the water-collecting tray of bottom in the casing through water purifier, water pipe, water pump, and water level controller is housed in the water-collecting tray, under the water-collecting tray drain valve is housed; There is packing layer the lower clapboard below; Establish adjustable air inlet below the packing layer on the lower wall of casing.The structure of above-mentioned patent evaporative condenser is representative.But existing evaporative condenser shortcoming is: winter is when using at north cold area; The problem that cooling water freezes can occur, cause water system unavailable, only rely on air circulating system to come condensation; Lose the advantage that evaporative condenser originally has, greatly reduced the service efficiency of system condensing.
The utility model content
The utility model is in order to overcome deficiency of the prior art, provide a kind of winter the electric heating type evaporative condenser in the same available water saving of north cold area, energy-conservation, high insulating effect.
The utility model is for realizing above-mentioned purpose; Realize through following technical scheme; A kind of electric heating type evaporative condenser; Comprise casing, water leg, condenser coil, spray equipment, condenser heat-exchanging chamber, filler heat exchange layers, drain pipe, liquid outlet, air inlet, blast fence, following air inlet, exhaust outlet, axial flow blower, water circulating pump, water fender and access path, said condenser coil is arranged in the condenser heat-exchanging chamber of casing, and said spray equipment is located at the condenser coil top; The air inlet pipe of condenser coil top is provided with air inlet; The below of said condensate and heat exchanger chamber is provided with the cooling water heat switch room, is provided with the filler heat exchange layers in the cooling water heat switch room, and the bottom of said cooling water heat switch room is provided with water leg; Be provided with water fender between said condensation heat exchange chamber, cooling water heat switch room and the exhaust air box, be provided with electric heater in the said water leg.
Be connected with the cabinet insulation layer around the said water leg outer wall, be provided with the temperature sensor that is connected with electric heater in the water leg, the affixed spongy layer of the remainder of said box house except that water leg.
Said filler heat exchange layers is PVC honeycomb type crossing current filler.
Beneficial effect: winter is in same available water saving, energy-conservation, the high insulating effect of north cold area.Cabinet insulation layer that is added with around the water leg and the interior bonding spongy layer of remainder of casing can significantly reduce the heat exchange of box house and external environment condition; Temperature sensor is set in the water leg, guarantees that the temperature of cooling water was unlikely to low.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, casing, 2, temperature sensor, 3 water fenders, 4 cooling water heat switch rooms, 5 axial flow blowers, 6, exhaust outlet; 7 air inlets, 8 condenser heat-exchanging chambers, 9 spray equipments, 10 air inlet pipe, 11 condenser coils; 12 liquid outlets, 13 drain pipes, 14 blast fences, 15 filler heat exchange layers, 16 times air inlets; 17 water leg cabinet insulation layers, 18 electric heaters, 19 water legs, 20 water circulating pumps, 21, access path.
The specific embodiment
Below in conjunction with preferred embodiment; Details are as follows to the specific embodiment that provides according to the utility model: see accompanying drawing for details; A kind of electric heating type evaporative condenser; Comprise casing 1, water leg 19, condenser coil 11, spray equipment 9, condenser heat-exchanging chamber, filler heat exchange layers 15, drain pipe 13, liquid outlet 12, air inlet 7, blast fence 14, following air inlet 16, exhaust outlet 6, axial flow blower 5, water circulating pump 20, water fender 3 and access path 21, said condenser coil is arranged in the condenser heat-exchanging chamber 8 of casing, and said spray equipment is located at condenser coil 11 tops; The air inlet pipe 10 of condenser coil top is provided with air inlet 6; The below of said condensate and heat exchanger chamber is provided with cooling water heat switch room 4, is provided with the filler heat exchange layers in the cooling water heat switch room, and the bottom of said cooling water heat switch room is provided with water leg; Be provided with water fender between said condensation heat exchange chamber, cooling water heat switch room and the exhaust air box, be provided with electric heater 18 in the said water leg.Be connected with cabinet insulation layer 17 around the said water leg outer wall, be provided with the temperature sensor 2 that is connected with electric heater in the water leg, the affixed spongy layer of the remainder of said box house except that water leg.Said filler heat exchange layers has been guaranteed the sufficient contact area of condensed water and filler for PVC honeycomb type crossing current filler, has guaranteed when condensed water flows and the heat-exchange time of air abundance, has better cooling effect.
Temperature sensor is connected with electric heater, and the temperature of cooling water is made feedback, and when cooling water temperature during less than 1 ℃, it is the cooling water heating that electric heater begins; When cooling water temperature during greater than 2 ℃, electric heater is not worked, and guarantees that the temperature of cooling water was unlikely to low.
The course of work:
When work, to open behind the axial flow blower, shower water on the surface of condenser coil, is formed even moisture film and makes coil surface keep moistening by the nozzle spray by the spray equipment on water circulating pump arrival condenser coil top.Under the effect of axial flow blower, form negative pressure in the case, new air gets in the case through upper and lower air inlet, and negative pressure can promote that moisture evaporates fast in the case, reaches the high efficient heat exchanging effect so simultaneously, has also reduced condenser coil surface scale and system energy consumption.Part water evaporation back in the moisture film is taken away by air, and the shower water that is not evaporated flows into the filler heat exchange layers downwards, contacts with the air that gets into from following air inlet, carries out exchange heat, and the back that is cooled flows in the water leg of bottom.After air is inhaled into from the upper and lower air inlet; The saturated hot humid air that behind coil pipe and filler, forms is discharged in the ambient atmosphere through axial flow blower; Water droplet in the hot-air is stopped during through baffle plate; Come back in the water leg, the cabinet insulation layer around the water leg and the spongy layer of all the other box insides have reduced the heat exchange of box house and external environment condition.When water temperature is crossed when low; Electric heater in the water leg will begin just need not stop using water circulation system again at cold district winter like this to the cooling water heating, adds water leg cabinet insulation layer and sponge; Box house has been played heat insulation effect preferably; Can avoid cooling water to freeze phenomenon preferably, guarantee the heat exchange efficiency that evaporative condenser is higher, also reduce the loss of recirculated water simultaneously.
The above only is the preferred embodiment of the utility model, is not the structure of the utility model is done any pro forma restriction.Every technical spirit according to the utility model is to any simple modification, equivalent variations and modification that above embodiment did, all still belongs in the scope of technical scheme of the utility model.