CN201926348U

CN201926348U - Multichannel plate-fin dew-point indirect evaporative cooling heat exchanger

Info

Publication number: CN201926348U
Application number: CN201120027711XU
Authority: CN
Inventors: 张宜万; 殷敏伟; 蒋彩琴; 余国海
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-27
Filing date: 2011-01-27
Publication date: 2011-08-10
Anticipated expiration: 2021-01-27

Abstract

The utility model relates to a multichannel plate-fin dew-point indirect evaporative cooling heat exchanger and is characterized in that the heat exchanger comprises a support and a dew-point heat exchanger core, wherein the dew-point heat exchanger core is composed of a plurality of heat exchange units which are sequentially connected with one another; each heat exchange unit is composed of a wet air channel, a thermal medium channel, another wet air channel and a dry air channel which are separated from each other by clapboards and are sequentially connected with one another; each thermal medium channel is internally provided with at least one layer of laminated plate; vertical fins are arranged in the wet air channel; and small holes communicated with the wet air channels are arranged on the clapboards at the two sides of each dry air channel. The heat exchanger is formed by combining the plurality of channels, takes the parallel counter-current heat exchange wet air channels and the counter-current heat exchange dry air channels to cool thermal media in the thermal medium channels and improves the heat exchange efficiency; the air or liquid media are cooled to be near the air dew-point temperature; the temperature fall is greater than that of other evaporative cooling heat exchangers; the energy consumption is lowered; therefore, the purposes of energy saving and emission reduction are achieved.

Description

Multichannel plate-fin dew point indirect evaporation cooling heat exchanger

Technical field

The utility model relates to a kind of heat-exchange device, especially relates to a kind of multichannel plate-fin dew point indirect evaporation cooling heat exchanger.

Background technology

2003, Russia scholar doctor ValeriyMaisotsenko has proposed the new Cyclical Theory of thermodynamics with its naming, it utilizes moisture in the refrigeration naturally of air evaporation heat absorption gas or liquid medium cooling to be cooled off, can be under the situation of not using compressor and cold-producing medium, any gas or liquid medium are cooled to dew-point temperature near air.China has begun to occur and go deep into gradually for the application study of above-mentioned theory, various experimental dew point indirect evaporative cooling heat exchangers and other dew point indirect evaporative cooler have entered test phase, some relevant national patents are also arranged, but also in engineering reality, effectively do not used, especially also there is not to be effective to the dew point indirect evaporative cooling heat exchanger of the sweat cooling of Industrial Engineering and normal domestic project, to realize effectively reducing the purpose of energy resource consumption and energy-saving and emission-reduction.In addition, general indirect evaporation cooling heat exchanger adopts the structure of humid air and two passages of thermal medium in the prior art, and heat exchange efficiency is lower, the medium that is cooled directly can't be cooled to the air dew point temperature.

The utility model content

The applicant is at above-mentioned problem, having carried out research improves, a kind of multichannel plate-fin dew point indirect evaporation cooling heat exchanger is provided, improve heat exchange efficiency, under the situation of not using refrigeration machine and cold-producing medium, gas or liquid medium are cooled near the air dew point temperature, realize the temperature drop bigger, reduce energy resource consumption, reach the purpose of energy-saving and emission-reduction than other evaporative cooling heat exchangers.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:

A kind of multichannel plate-fin dew point indirect evaporation cooling heat exchanger, comprise support and dew point heat exchange movement, in turn in abutting connection with constituting, each heat exchange unit is separated by dividing plate and humid air passage, hot media channel, humid air passage and the dry air passage of adjacency constitute in turn by several heat exchange units for described dew point heat exchange movement; Be provided with one deck level course plate at least in the described hot media channel, the end socket at horizontal laminate and dew point heat exchange movement two ends constitutes the runner that comes and goes baffling, and the orlop runner connects the medium inlet joint, and the superiors' runner connects the media outlet pipe joint; Be provided with the fin of vertical direction in the described humid air passage; The dividing plate of described dry air passage both sides is provided with the aperture that several are communicated with described humid air passage, and the both sides of described dew point heat exchange movement bottom are provided with the dry air inlet connector tube, and dry air passage connects the dry air inlet connector tube.

Further:

Be provided with the serrated fin of vertical direction in the described hot media channel.

Be provided with the serrated fin of vertical direction in the described dry air passage.

Described fin is a rippled fin.

Technique effect of the present utility model is:

The disclosed a kind of multichannel plate-fin dew point indirect evaporation cooling heat exchanger of the utility model, constitute by multichannel, adopting the humid air passage of countercurrent flow in parallel and dry air passage is that thermal medium in the hot media channel cools, improve heat exchanger effectiveness, under the situation of not using refrigeration machine and cold-producing medium, gas or liquid medium are cooled near the air dew point temperature, realize the temperature drop bigger, reduce energy resource consumption, reach the purpose of energy-saving and emission-reduction than other evaporative cooling heat exchangers.

Description of drawings

Figure 1A is front view of the present utility model (humid air stream is to signal).

Figure 1B is Figure 1A left view (humid air stream is to signal).

Fig. 1 C is Figure 1A upward view (humid air stream is to signal).

Fig. 2 A is front view of the present utility model (heat medium flow is to signal).

Fig. 2 B is Fig. 2 A left view (heat medium flow is to signal).

Fig. 3 A is front view of the present utility model (flow of dried air is to signal).

Fig. 3 B is Fig. 3 A left view (flow of dried air is to signal).

Fig. 4 is the partial perspective enlarged drawing of dew point heat exchange movement.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

Shown in Fig. 1～4, the utility model comprises support 1 and dew point heat exchange movement 2, as Fig. 4, dew point heat exchange movement 2 by several heat exchange units 3 in turn in abutting connection with constituting, each heat exchange unit 3 is separated also the humid air passage 5 of adjacency in turn by dividing plate 4, hot media channel 6, humid air passage 5 and dry air passage 7 constitute, that is to say, the passage permutation and combination of dew point heat exchange movement 2 is a humid air passage 5, hot media channel 6, humid air passage 5, dry air passage 7, humid air passage 5, hot media channel 6, humid air passage 5, dry air passage 7 ... the multichannel dew point heat exchange movement 2 of arranging thus and constituting, its hot media channel 6 both sides are humid air passage 5, and the both sides of dry air passage 7 are similarly humid air passage 5.Be provided with 2 layers of horizontal laminate 8 in the hot media channel 6, (not drawing in the drawings) sealed with strip of paper used for sealing in the both sides up and down of hot media channel 6, horizontal laminate 8 constitutes the runner (Fig. 2 B) that comes and goes baffling with the end socket 9 at dew point heat exchange movement 2 two ends, the orlop runner connects medium inlet joint 10, the superiors' runner connects media outlet pipe joint 11, at least should be provided with 1 layer of horizontal laminate 8 in the hot media channel 6, quantity is set determines according to actual needs of horizontal laminate 8, in the present embodiment, be provided with the serrated fin 15 of vertical direction in the hot media channel 6, the thermal medium of bottom horizontal flow sheet flows through from the slit of serrated fin 15, and serrated fin 15 can improve the heat exchanger effectiveness of thermal medium in the hot media channel 6.Be provided with the fin 12 of vertical direction in the humid air passage 5, in the present embodiment, fin 12 is a rippled fin.The dividing plate 4 of dry air passage 7 both sides is provided with several apertures 13 that is communicated with humid air passage 5, the both sides of dew point heat exchange movement 2 bottoms are provided with dry air inlet connector tube 14(Fig. 3 A, 3B), dry air passage 7 connects dry air inlet connector tube 14, seal by strip of paper used for sealing around the dry air passage 7, dry air enters dry air passage 7 from dry air inlet connector tube 14, and aperture 13 enters humid air passage 5 from the dry air passage 7 both sides dividing plates 4, in the present embodiment, be provided with the serrated fin 16 of vertical direction in the dry air passage 7, the dry air that enters dry air passage 7 is flowed from the bottom up, and aperture 13 enters humid air passage 5 from the dry air passage 7 both sides dividing plates 4, and serrated fin 16 improves the heat exchanger effectiveness of dry air in the dry air passage 7.

In actual use, as Figure 1A, Figure 1B, Fig. 1 C, shown in Figure 4, humid air passes through the humid air passage 5 of dew point heat exchange movement 2 vertically downward by the arrow A direction, and humid air is mixed with shower water or spray water by cold wind and forms; As Fig. 3 A, Fig. 3 B, shown in Figure 4, dry air enters dry air inlet connector tube 14 by the arrow C direction, flow from the bottom up between the serrated fin 16 in dry air passage 7, and aperture 13 enters humid air passage 5 from the dry air passage 7 both sides dividing plates 4, and dry air mixes with humid air in humid air passage 5 and flows from top to bottom with humid air.As Fig. 2 A, Fig. 2 B, shown in Figure 4, need the gas or the liquid medium of cooling to enter hot media channel 6 through medium inlet joint 10 by the arrow B direction, the medium along continuous straight runs is successively upwards flowed through and is come and gone the runner of baffling, medium progressively is cooled in flow process, and the medium that is cooled to air dew point flows out from media outlet pipe joint 11.Thermal medium is turned back in hot media channel 6 in the process of flowing, the thermal medium bottom horizontal flow sheet is laterally skimmed over humid air passage 5 from top to down and is cooled more than twice or twice, simultaneously extraneous cold dry air enter dry air passage 7 and from go up down with humid air passage 5 humid air become the adverse current state and be cooled, in the dry air passage 7 gradually by etc. the cold dry air of wet cooling constantly enter adjacent humid air passage 5 through the aperture on the both sides dividing plate 4 13, make the continuous humidification of humid air in the humid air passage 5, saturated, heat up, and then make medium in the adjacent hot media channel 6 be cooled to air dew point temperature gradually near there and then.The utility model patent has changed the structure of plate-fin heat exchanger humid air of the prior art and two passages of thermal medium, adopt the humid air passage and the dry air passage of countercurrent flow in parallel, and the cold dry air in the dry air passage in parallel enters the humid air passage by aperture, and the temperature and the water capacity that constantly lower humid air impel the thermal medium in the hot media channel further to cool off.

Claims

1. multichannel plate-fin dew point indirect evaporation cooling heat exchanger, it is characterized in that: comprise support and dew point heat exchange movement, in turn in abutting connection with constituting, each heat exchange unit is separated by dividing plate and humid air passage, hot media channel, humid air passage and the dry air passage of adjacency constitute in turn by several heat exchange units for described dew point heat exchange movement; Be provided with one deck level course plate at least in the described hot media channel, the end socket at horizontal laminate and dew point heat exchange movement two ends constitutes the runner that comes and goes baffling, and the orlop runner connects the medium inlet joint, and the superiors' runner connects the media outlet pipe joint; Be provided with the fin of vertical direction in the described humid air passage; The dividing plate of described dry air passage both sides is provided with the aperture that several are communicated with described humid air passage, and the both sides of described dew point heat exchange movement bottom are provided with the dry air inlet connector tube, and dry air passage connects the dry air inlet connector tube.

2. according to the described multichannel plate-fin dew point of claim 1 indirect evaporation cooling heat exchanger, it is characterized in that: the serrated fin that is provided with vertical direction in the described hot media channel.

3. according to the described multichannel plate-fin dew point of claim 1 indirect evaporation cooling heat exchanger, it is characterized in that: the serrated fin that is provided with vertical direction in the described dry air passage.

4. according to the described multichannel plate-fin dew point of claim 1 indirect evaporation cooling heat exchanger, it is characterized in that: described fin is a rippled fin.