CN2492808Y

CN2492808Y - Plate evaporating condensator

Info

Publication number: CN2492808Y
Application number: CN 01228523
Authority: CN
Inventors: 柯耀霖
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-14
Filing date: 2001-08-14
Publication date: 2002-05-22
Anticipated expiration: 2011-08-14

Abstract

The utility model relates to a plate evaporating condensator which is a condensation device provided with a cooling medium circulating pipe which is communicated with a freezing air conditioner. The condensation device is provided with a plurality of cold plates each of which is welded by two metal plates, and a cooling medium channel is formed between the two metal plates of each cold plate. The cooling medium channels of the cold plates are mutually communicated, and thus a cooling medium of the high-temperature gas can pass through the cooling medium channels in the circulation of the cooling medium circulation line. The arrangement of the cold plates makes the cooling water uniformly sprayed on the cold plates to form water films on the surfaces of the cold plates for generating the effect of the film-type heat transfer, and makes the air flow in the condensation device smooth for lifting the running efficiency of a freezing air conditioning system.

Description

The plate evaporation condenser

[technical field]

The utility model relates to a kind of evaporative condenser, particularly relates to a kind of plate evaporation condenser.

[background technology]

The medium circulation pipeline of general refrigerating and air conditioning system all is communicated with and is provided with condenser, so that the heat absorption back becomes gas coolant heat release condensation in condenser of the condition of high temperature to form the liquid coolant of low temperature, therefore, the quality of described condenser heat-transfer effect can directly affect the running efficiency of refrigerating and air conditioning system, see also Fig. 1, it is the generalized section of shell and tube condenser in the past, as shown in the figure, described shell and tube condenser 1 mainly includes a cylindrical shell 11, be arranged at cylindrical shell 11 two ends respectively and form the two end cap 12 of collecting chamber 120, and several are arranged in the cylindrical shell 11 and are communicated with the cooling tube 13 of two collecting chambers 120, described cylindrical shell 11 tops offer refrigerant inlet 111, and described cylindrical shell 11 bottoms offer a refrigerant exit 112, simultaneously, wherein an end cap 12 offers a water inlet 121 and a delivery port 122, and described two collecting chambers 120 can suitably separate and be some spaces (being secondary circuit single cycle formula shown in the figure), so that cooling water can be flowed in the collecting chamber 120 by water inlet 121, and the cooling water pipe 13 of circulation process back and forth, flow out by delivery port 121 again, in addition, gaseous coolant in the medium circulation pipeline of described freezing air conditioner equipment (not shown) can by refrigerant enter the mouth 111 the input cylindrical shells 11 in, by with cylindrical shell 11 in cooling water in the cooling water pipes 13 produce heat exchange action, and be condensed into liquid refrigerants, and get back to medium circulation pipeline by refrigerant exit 112 outputs, to reach with the lower the temperature effect of condensation of refrigerant, yet, described shell and tube condenser 1 still must be provided with a cooling tower (not shown) when using, after described cooling water being absorbed heat heat up in cylindrical shell 11, can it be cooled off in sending cylindrical shell 11 back to by cooling tower, therefore cause the cost increase is set.

Therefore, for exempting the setting of cooling tower, so develop a kind of evaporative condenser.See also Fig. 2, it is the front elevational schematic of evaporative condenser in the past, as shown in the figure, described evaporative condenser 2 mainly includes a housing 21, one is arranged on the housing 21 and is communicated with the condensing unit 22 of the medium circulation pipeline 3 of freezing air conditioner equipment (not shown), one is arranged at the discharging device 23 of condensing unit 22 tops, one is formed at the aqua storage tank 24 of housing 21 bottoms, cooling water 25 is placed in the aqua storage tank 24, and the pump 26 that cooling water 25 can be pumped in the discharging device 23, please cooperate shown in Figure 3 simultaneously, it is the condensing unit generalized section of evaporative condenser in the past, described condensing unit 22 is made up of several condenser pipes of ganging up 221, and described condenser pipe 221 is parallel being staggered and is arranged on the casing 21, wherein a condenser pipe 221 ' is provided with the refrigerant input port 222 that is communicated with medium circulation pipeline 3, another condenser pipe 221 " then be provided with the refrigerant delivery outlet 223 that is communicated with medium circulation pipeline 3; make the gaseous coolant of medium circulation pipeline 3 import condensing units 22 by refrigerant input port 222; and circulation is through behind the described condenser pipe of ganging up 221; flow out by refrigerant delivery outlet 223 again and get back in the medium circulation pipeline 3; simultaneously; described discharging device 23 can spray cooling water 25 downwards by the top of condensing unit 22, but allow described cooling water 25 water drench on condenser pipe 221, and make the refrigerant in cooling water 25 and the condenser pipe 221 produce heat exchange action, to reach with the lower the temperature effect of condensation of refrigerant, in addition, the cooling water 25 of the described condenser pipe 221 of flowing through also can utilize aqua storage tank 24 to be collected in housing 21 bottoms, and again cooling water 25 pressurizations are sent into discharging device 23 by the running of pump 26, realize the circulation of cooling water 25, in addition, described housing can be provided with a draft fan 27 in addition, and by described draft fan 27 runnings of a fan motor 271 drivings and the motion of generation exhausting, to help the air in the housing 21 to flow, and reach the effect of heat radiation by the convection action of described air, simultaneously, 23 of fan 27 and discharging devices are provided with water filter plate 28 again, to isolate the aqueous vapor that produces when discharging device 23 is sprayed water, avoid aqueous vapor be drawn in the external environment by draft fan 27.

Though above-mentioned evaporative condenser in the past 2 can reach the effect of condensation refrigerant, still have following shortcoming on actual the use:

1 cooling water flow is big:

Owing to the condensing unit 22 of evaporative condenser 2 is in the past ganged up to be provided with by parallel staggered condenser pipe 221 and is formed, when discharging device 23 makes cooling water 25 be sprayed by condensing unit 22 tops, cooling water 25 can flow to the condenser pipe 25 that is positioned at lower floor gradually by the condenser pipe 25 that is positioned at the upper strata, because described condenser pipe 221 is cylindrical, and be staggered independent the setting, thereby cause cooling water 25 inhomogeneous in the flow direction of 221 of described condenser pipes, make the condenser pipe 25 of certain part position drenched by the water of cooling water 25, cause inhomogeneous cooling even, and reduced effect to the refrigerant condensation in the condenser pipe 22, therefore, be the effect of guaranteeing the refrigerant condensation and the running efficiency of refrigerating and air conditioning system, described evaporative condenser 2 need increase the flow of cooling water 25 when turning round, to improve the uneven phenomenon of flow direction, so just cause the load of pump 26 to increase, and consume more electric power energy.

2 clean and maintenance are difficult for, easy scaling:

Because the condensing unit 22 of evaporative condenser 2 was the effects that reach the condensation refrigerant in the mode that cooling water 25 water drench in the past, therefore the peripheral tube wall of described condenser pipe 221 uses and forms incrustation scale long afterwards easily, must be regularly with its clean and maintenance, to guarantee its heat-transfer effect, yet described condenser pipe 221 is cylindrical, and staggered again independent the setting, if with cleaning brush with its grooming one by one, quite difficult in the construction, if spray chemical liquids by condensing unit 22 tops in the Chemical cleaning mode, also easily because of the current inequality of chemical liquids in 22 of described condenser pipes, cause the erosion of upper strata condenser pipe 22 excessive, and lower floor's condenser pipe 22 clean incomplete phenomenon, in addition, so the difficult meeting of clean and maintenance causes condensing unit 22 easy scalings, causes the shortening of dispelling the heat bad and service life.

3 windages are big, fan motor need have high-power:

Because being staggered the arrangement, the condenser pipe 221 of described condensing unit 22 is provided with, make air in the described condensing unit 22 flow interrupted easily and produce convection current and have some setbacks, can be taken out of outside the housing rapidly by the heat that condenser pipe 221 spreads out of for guaranteeing refrigerant, so must strengthen the horsepower of fan motor, the air that could drive smoothly in the condensing unit 22 flows, simultaneously, because the exhausting strength of fan 27 is big, also easily aqueous vapor is extracted out, so the setting of water filter plate 28 need be arranged again, so just causing in the past, the equipment cost and the running electricity expense of evaporative condenser 2 promote.

[summary of the invention]

Main purpose of the present utility model is to provide a kind of plate evaporation condenser, and is little with the cooling water flow that reaches condenser, be difficult for scaling and the little effect of windage.

For achieving the above object, plate evaporation condenser of the present utility model, comprise a housing, one is arranged on the housing and is communicated with the condensing unit of the medium circulation pipeline of freezing air conditioner equipment, one is arranged at the discharging device of condensing unit top, one is formed at the aqua storage tank of housing bottom, cooling water is placed in the aqua storage tank, and the pump that cooling water can be pumped in the discharging device, so that described cooling water can be drenched on condensing unit by water injector output and water, be characterized in: described condensing unit has several cold plates, and described cold plate is welded by two metallic plates, its periphery is sealing state, space between described two metallic plates except that weld forms refrigerant passage, the refrigerant passage of described cold plate is ganged up mutually, and the medium circulation pipeline of described freezing air conditioner equipment is connected with described refrigerant passage of ganging up mutually, so that refrigerant is negotiable through refrigerant passage in the circulation of described medium circulation pipeline.

Adopt such scheme of the present utility model, setting by cold plate in the condensing unit, make cooling water evenly water drench on described cold plate, and, produce the effect of membranaceous heat transfer, simultaneously in its surface formation moisture film, also make the air in the condensing unit flow smooth and easy, and clean and maintenance is easy, reach cooling water flow little, be difficult for scaling, windage little, the little effect in space is set, to promote the running efficiency of refrigerating and air conditioning system.

[description of drawings]

Below by preferred embodiment and accompanying drawing to being elaborated of the utility model plate evaporation condenser, in the accompanying drawing:

Figure 1 shows that the generalized section of shell and tube condenser in the past;

Figure 2 shows that the front elevational schematic of evaporative condenser in the past;

Figure 3 shows that the condensing unit generalized section of evaporative condenser in the past;

Figure 4 shows that the positive cross-sectional schematic of the utility model one preferred embodiment;

Figure 5 shows that the side cross-sectional schematic of the utility model one preferred embodiment;

Figure 6 shows that the cold plate schematic perspective view of the utility model one preferred embodiment;

Figure 7 shows that the cold plate generalized section of the utility model one preferred embodiment.

[specific embodiment]

See also Fig. 4 and Fig. 5, they are the positive cross-sectional schematic and the side cross-sectional schematic thereof of the utility model one preferred embodiment.As shown in the figure, the plate evaporation condenser 4 of present embodiment mainly includes a housing 41, one is arranged on the housing 41 and is communicated with the condensing unit 42 of the medium circulation pipeline 5 of freezing air conditioner equipment (not shown), one is arranged at the discharging device 43 of condensing unit 42 tops, one is formed at the aqua storage tank 44 of housing 41 bottoms, cooling water 45 is placed in the aqua storage tank 44, one can pump into cooling water 45 pump 46 in the discharging device 43, an and draft fan 47 that is arranged on the housing 41, described housing 41 offers an air outlet 411 in draft fan 47 places are set, and described draft fan 47 orders about rotation by a motor 471, and the running that makes described draft fan 47 can produce exhausting motion, and the air that causes housing 41 inside can produce convection action with the external world and reach the effect of heat radiation.

Continuous Fig. 6 and Fig. 7 of please consulting simultaneously, they are the cold plate schematic perspective view and the generalized section thereof of the utility model one preferred embodiment, and please cooperate and consult Fig. 4, as shown in the figure, described condensing unit 42 has several and is vertically installed in cold plate 421 in the housing 41, and the two refrigerant input pipes 422 and the two refrigerant efferent ducts 423 that are communicated with cold plate 421, described cold plate 421 selects the metallic plate 424 of unlike material to be welded (as shown in Figure 6) by two according to purposes, its periphery is sealing state, make 424 spaces except weld of described two metallic plates form refrigerant passage 425, simultaneously, each cold plate 421 all is provided with refrigerant import 426 and the refrigerant exit 427 that is communicated with inner refrigerant passage, and described refrigerant import 426 is to be connected by refrigerant input pipe 422, described refrigerant exit 427 then is to be connected by a refrigerant efferent duct 423, the refrigerant passage 425 of described cold plate 421 can be ganged up mutually, described refrigerant input pipe 422 and refrigerant efferent duct 423 are to be connected with the medium circulation pipeline 5 of described freezing air conditioner equipment, like this, gaseous coolant in the described medium circulation pipeline 5 can be from refrigerant input pipe 422 by the refrigerant import 426 input cold plates 42, and in described cold plate 421 circulation through the described refrigerant passage of ganging up 425 and after the condensation, get back in the medium circulation pipeline 5 by refrigerant exit 427 outputs and by refrigerant efferent duct 423 again, simultaneously, described discharging device 43 has a ccontaining tank 431, and the position of the described relatively cold plate 421 in described ccontaining tank 431 bottoms offers several infiltration holes 432, so that described ccontaining tank 431 can be accepted the cooling water 45 that pumped into by pump 46, and hole 432 is oozed out by seeping water and even water drenches on cold plate 421 to make cooling water 45, and in cold plate 421 surface formation moisture films, produce the effect of membranaceous heat transfer, make the refrigerant generation heat exchange action in the refrigerant passages 425 in described cooling water 45 and the cold plate 421, to reach with the lower the temperature effect of condensation of refrigerant, in addition, the cooling water 45 of the described cold plate 421 of flowing through can utilize aqua storage tank 44 to be collected in housing 41 bottoms again, and again cooling water 45 pressurizations are sent into discharging device 43 by the running of pump 46, to realize the circulation of cooling water 45.

Described by last embodiment, and shown in the conjunction with figs. as can be known, the utlity model has following advantage and effect:

1 cooling water flow is little:

Owing to the condensing unit 42 of the utility model plate evaporation condenser 4 is ganged up to be provided with by the cold plate 421 that is arranged in parallel and is formed, its flat design forms when discharging device 43 is flow down cooling water 45 by condensing unit 42 tops, cooling water 45 water uniformly drenches in each sheet cold plate 421 surface, the flow direction that can not produce cooling water 45 is indefinite, cause the even phenomenon of inhomogeneous cooling, simultaneously, described cold plate 421 surfaces can form moisture film, produce the effect of membranaceous heat transfer, because it is big that its heat passes area, can make the refrigerant in the refrigerant passage 425 reach good condensation effect, and further promote the running efficiency of refrigerating and air conditioning system, therefore, the utility model does not need big discharge, can guarantee the effect of refrigerant condensation and the running efficiency of refrigerating and air conditioning system, the load of pump 46 is reduced, save electric power energy.

2 clean easily, are difficult for scaling:

Though the condensing unit 42 of the utility model plate evaporation condenser 4 also is the effect that reaches the condensation refrigerant in the mode that cooling water 45 water drench, therefore can't avoid cold plate 421 to use and form incrustation scale long afterwards, it is right because described cold plate 421 is to be plane tabular, and but vertical parallel is arranged setting, therefore during clean and maintenance, if come grooming with cleaning brush, quite easy in the construction, or utilize the Chemical cleaning mode and by spraying chemical liquids in condensing unit 42 tops, also because of the current of chemical liquids evenly water drench in cold plate 421 surfaces, can avoid, the cold plate 421 of lower end cleans uneven phenomenon, so clean and maintenance is easy to advantage the incrustation scale on cold plate 421 surfaces can thoroughly be removed, and also can guarantee to dispel the heat good and helps the condensing unit growth in 42 service lifes.

3 windages are little, fan motor only needs the tool fraction horsepower:

Described before continuous, because the cold plate 421 of described condensing unit 42 is to be plane tabular, and but vertical parallel is arranged setting, it is interrupted very little that the air that described draft fan 47 is driven flows in 42 institutes of described condensing unit, therefore, only need to use the fan motor 471 of fraction horsepower, can make in the housing 41, the outer cross-ventilation that is produced is quite smooth and easy, and refrigerant can be taken out of outside the housing 41 rapidly by the heat that cold plate 421 spreads out of, also help the to dispel the heat effect of cooling, simultaneously, because the exhausting strength of draft fan 47 is little, aqueous vapor can not extracted out, so need not to be provided with in addition as water filter plate in the past, like this, can save equipment cost and running electricity expense usefulness really, also can dwindle overall volume, save the space that is provided with of condensing unit 42.

In sum, the utility model plate evaporation condenser is by the design of cold plate in the condensing unit, can reach really cooling water flow little, be difficult for scaling, windage little, the little effect in space is set, to promote the effect of refrigerating and air conditioning system running efficiency.

Claims

1. plate evaporation condenser, comprise a housing, one is arranged on the housing and is communicated with the condensing unit of the medium circulation pipeline of freezing air conditioner equipment, one is arranged at the discharging device of condensing unit top, one is formed at the aqua storage tank of housing bottom, and cooling water is placed in the aqua storage tank, and a pump that cooling water can be pumped in the discharging device, so that described cooling water can be drenched on condensing unit by water injector output and water, it is characterized in that:

Described condensing unit has several cold plates, and described cold plate is welded by two metallic plates, its periphery is sealing state, space between described two metallic plates except that weld forms refrigerant passage, the refrigerant passage of described cold plate is ganged up mutually, the medium circulation pipeline of described freezing air conditioner equipment is connected with described refrigerant passage of ganging up mutually, so that refrigerant is negotiable through refrigerant passage in the circulation of described medium circulation pipeline.

2. plate evaporation condenser as claimed in claim 1 is characterized in that:

Described each cold plate all forms the refrigerant import and the refrigerant exit of the inner refrigerant passage of at least one connection, described refrigerant import is connected by a refrigerant input pipe, described refrigerant exit then is to be connected by a refrigerant efferent duct, and described refrigerant input pipe and refrigerant efferent duct are connected with the medium circulation pipeline of described freezing air conditioner equipment.

3. plate evaporation condenser as claimed in claim 1 is characterized in that:

Offer an air outlet on the described housing, described housing is provided with a draft fan in the air outlet place, and described draft fan produces the exhausting motion by Motor Drive running.