CN215063845U

CN215063845U - Dry-wet integrated heat exchange device

Info

Publication number: CN215063845U
Application number: CN202120323966.4U
Authority: CN
Inventors: 王进友
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-12-07
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a dry-wet integrated heat exchange device, which comprises a heat exchanger body, wherein a plurality of first channels with upper and lower openings are arranged on the heat exchanger body, a second channel with upper and lower openings is arranged between the adjacent first channels, a plurality of concave seals are uniformly distributed on the upper opening or the lower opening of each first channel, the concave seals on the adjacent first channels correspond to each other to form a through groove on the heat exchanger body, wherein when the concave seals are positioned at the upper opening of the first channels, a spray pipe is arranged on the through groove in a matching way, a valve is arranged on the spray pipe, and the spray pipe is connected with a water inlet pipe of a cooling tower; when the concave seal is located first passageway downside opening part, second passageway downside opening part is equipped with end seal, and end seal covers the second passageway downside opening and the end seal below except that link up the groove and still corresponds there is the open-ended new trend passageway in the top, and this application has satisfied the user and has dispelled white cigarette and refrigerated different weights to the cooling tower under different seasons and weather condition, is fit for using widely.

Description

Dry-wet integrated heat exchange device

Technical Field

The utility model relates to an industrial circulating water treatment facility field, concretely relates to do wet integrated heat transfer device and this device's application method.

Background

The cooling tower is a common industrial circulating water cooling treatment device, the core heat exchange device in the cooling tower comprises a heat exchanger (a packing block or a heat exchange plate or a pipe) and a spraying water distribution system, along with the improvement of the environmental protection requirement, the problems of fog dissipation and white smoke dissipation of the cooling tower become problems which need to be solved urgently, the combination with the prior art can be known that water flow in a dry cooling tower flows in the heat exchange plate and the pipe, no white smoke is generated because the water flow and the air flow are not contacted during heat exchange, the environment is very friendly, but the cooling efficiency of the dry cooling tower is lower, the problems of rusting, scaling and dust accumulation easily occur to the heat exchange plate and the pipe, the cooling of heat load can not be well completed in hot summer, the water flow is sprayed on the packing block as a comparative wet cooling tower, the water flow is directly contacted with the air flow, the heat exchange efficiency is higher than that of the dry cooling tower, and the cooling of the heat load can be well completed even in summer, however, in winter, the mode of direct contact heat exchange between water flow and air flow is easy to generate a large amount of white smoke, and cannot well meet the environmental protection requirement, so a dry-wet hybrid integrated heat exchange device is needed to meet the requirements of white smoke elimination and heat load completion of a cooling tower.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the background art, the utility model aims to provide a do wet integrated heat transfer device, it has effectively solved the problem that exists among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dry-wet integrated heat exchange device comprises a heat exchanger body, wherein a plurality of first channels which are parallel to each other are arranged on the heat exchanger body, the upper side and the lower side of each first channel are both provided with an opening, a second channel with the upper side and the lower side both provided with openings is arranged between the adjacent first channels, a plurality of concave seals are uniformly distributed on the upper side opening or the lower side opening of each first channel, the concave seals on the adjacent first channels correspond to each other, a through groove is formed on the heat exchanger body, when the concave seals are positioned at the upper side opening of each first channel, a spray pipe is arranged on the through groove in a matched manner, a valve is arranged on the spray pipe, and the spray pipe is communicated with a cooling tower water inlet pipe; when the concave seal is positioned at the lower side opening of the first channel, a bottom seal is arranged at the lower side opening of the second channel, the bottom seal covers the lower side opening of the second channel except the through groove, and a fresh air channel with an upper side opening is correspondingly arranged below the bottom seal.

Further, the heat exchanger body comprises a plurality of mutually parallel packing sheets, and the first channel and the second channel are formed between the adjacent packing sheets.

Further, the recessed seal is U-shaped or V-shaped.

Furthermore, the left side and the right side of the first channel and the second channel are both opened.

The utility model discloses following beneficial technological effect has:

the heat exchanger body of the utility model respectively sends out dry hot air and wet hot air in the first channel and the second channel under the white smoke eliminating mode, the dry hot air and the wet hot air are discharged after being mixed, the cooling tower air out of the tower is in an unsaturated state, the formation of a large amount of white smoke is effectively avoided, and the heating process of the dry hot air in the first channel completes a part of cooling tower heat load, and the part of heat load is completed without the evaporation of moisture, thereby reducing the evaporation capacity of the cooling tower, the water saving rate and the sewage discharge reduction rate of the cooling tower are effectively improved, in addition, the air flow overflowing resistance of the concave seal is small, the energy conservation of a fan is facilitated, meanwhile, the distribution of the air flow and the water flow in the heat exchanger body can be more uniform, the heat exchange efficiency of the heat exchanger body is effectively improved, the design of the heat exchanger is novel, the requirements of the cooling tower user on white smoke elimination and different cooling of the cooling tower under different seasons and different weather conditions are met, is suitable for popularization and application.

Drawings

FIG. 1 is a front view of an embodiment of the present invention recessed sealed over an upper opening of a first channel;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of an embodiment of the present invention recessed sealed over the opening on the underside of the first channel;

fig. 4 is a bottom view of fig. 3 with the fresh air channel removed.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 and fig. 2, the dry-wet integrated heat exchange device according to the embodiment includes a heat exchanger body 1, a plurality of first channels 2 parallel to each other are disposed on the heat exchanger body 1, both upper and lower sides of the first channels 2 are open, a second channel 3 with both upper and lower sides open is disposed between adjacent first channels 2, a plurality of concave seals 4 are uniformly disposed on the upper side opening of the first channel 2 along the left-right direction, the concave seals 4 on adjacent first channels 2 correspond to each other to form a through groove on the heat exchanger body 1, the through groove extends forward and backward, a spray pipe 5 is disposed on the through groove in a matching manner, the spray pipe 5 is provided with a valve and the spray pipe 5 is communicated with a water inlet pipe of a cooling tower, preferably, the spray pipe 5 is not higher than the upper edge of the heat exchanger body 1, which is beneficial for the spray pipe 5 to completely feed water into the second channel 3, the first channels 2 are under the action of the concave seals 4, the spray pipe 5 does not spray the circulating water to be cooled into the first passage 2;

the heat exchanger body 1 comprises a plurality of parallel packing sheets 6, a first channel 2 and a second channel 3 are formed between the adjacent packing sheets 6, the concave seal 4 is U-shaped or V-shaped, the winding performance is good, the over-flow resistance when the airflow reaches the concave seal 4 is small, the energy conservation of a fan is facilitated, meanwhile, the distribution of the airflow and the water flow in the heat exchanger body 1 can be more uniform, the heat exchange efficiency of the heat exchanger body 1 is effectively improved, the left side and the right side of the first channel 2 and the left side of the second channel 3 are both opened, so that the air can horizontally flow into and out of the heat exchanger body 1, and the application of the heat exchanger body 1 in a cross-flow cooling tower is met.

The working principle of the embodiment is as follows:

taking a counter-flow cooling tower as an example, a packing layer of the cooling tower is partially or completely replaced by a heat exchanger body 1, a spray pipe 5 is connected with a water inlet pipe of the cooling tower, when the heat load of the cooling tower is preferentially completed, the spray pipe 5 does not work, the original spray water distribution pipe of the cooling tower sprays circulating water to be cooled from the upper part, the circulating water enters a first channel 2 and a second channel 3 because the upper sides of the first channel 2 and the second channel 3 are both provided with opening parts, meanwhile, outside air enters the tower through air inlets at two sides of the bottom of the cooling tower under the action of a fan of the cooling tower and enters the first channel 2 and the second channel 3 from bottom to top, air flow and water flow contact for heat exchange, the air flow absorbs heat and is humidified to become wet hot air flow, the temperature of the water flow is reduced and flows out of the heat exchanger body 1 and then drops into a water pool of the cooling tower, the process is the same as that of the existing wet-type counter-flow cooling tower, the heat exchange efficiency is ensured, the temperature of circulating water can be effectively reduced, and the completion of the heat load of the cooling tower is facilitated;

when white smoke is preferentially eliminated, the original spraying water distribution pipe of the cooling tower is closed, the spraying pipe 5 on the heat exchange device is opened, at the moment, circulating water to be cooled is sprayed into the second channel 3 through the upper opening of the second channel 3 through the spraying pipe 5, no water flow flows down in the first channel 2 due to the action of the concave seal 4, outside air enters the tower from air inlets at two sides of the bottom of the cooling tower under the action of a fan of the cooling tower, then one part of the outside air enters the first channel 2 through the lower opening of the first channel 2, the other part of the outside air enters the second channel 3 through the lower opening of the second channel 3, the air entering the second channel 3 directly contacts with the water flow for heat exchange, a wet-type heat exchange process is generated, moist and hot air is generated, the air entering the first channel 2 and the water flow and the air flow in the adjacent second channel 3 generate partition wall heat exchange through the filler sheets 6, the air in the first channel 2 is heated to become dry and hot air flow, the dry hot air flow and the wet hot air flow are respectively discharged out of the heat exchanger body 1 through the upper opening of the first channel 2 and the upper opening of the second channel 3, the mixed gas tends to keep an unsaturated state, the formation of white smoke is fundamentally inhibited, in addition, a part of heat load of the cooling tower is also completed in the temperature rising process of the gas in the first channel 2, the part of heat load has no water evaporation, and in addition, the part of water in the wet hot air flow in the second channel 3 is cooled and condensed, so the evaporation capacity of the cooling tower is reduced, and the water saving rate and the sewage emission reduction rate of the cooling tower are effectively improved.

Example two

As shown in fig. 3 and fig. 4, the difference between this embodiment and the first embodiment is that the concave seal 4 is disposed at the lower opening of the first channel 2, except for the shower pipe 5, the lower opening of the second channel 3 is provided with a bottom seal 7, the bottom seal 7 covers the lower opening of the second channel 3 except the through groove, and a fresh air channel 8 with an upper opening is correspondingly disposed below the bottom seal 7, other structures of this embodiment are the same as the first embodiment, and are not repeated herein;

the working principle of the embodiment is as follows;

the heat exchanger body 1 is arranged above an original spray water distribution pipe of a cooling tower, the heat exchanger body 1 is used for partially or completely replacing an original water collector layer of the cooling tower, a fresh air channel 8 is arranged on a tower body in a penetrating way, the inlet side of the fresh air channel 8 is communicated with the outside atmosphere, the upper side opening of the fresh air channel 8 is an outlet side, the outlet side of the outlet side enters a first channel 2, the inlet side of the fresh air channel 8 is a front side and a rear side, the front side and the rear side of the fresh air channel are arranged on the tower wall of the cooling tower, taking a counter-flow cooling tower as an example, the moist heat air sent out upwards from a packing layer of the cooling tower passes through a gap opening between adjacent bottom seals 7 at the lower side opening of the second channel 3 to enter the second channel 3, the outside air, namely the fresh air directly passes through the fresh air channel 8 to enter the first channel 2 upwards, and the bottom seals 7 are arranged at the lower side opening of the second channel 3 corresponding to the upper side opening of the fresh air channel 8, therefore, the fresh air cannot enter the second channel 3, the wet hot air flow in the second channel 3 and the fresh air in the first channel 2 generate partition wall heat exchange, the fresh air is heated to generate dry hot air flow, the dry hot air flow and the wet hot air flow are respectively sent out through the upper opening of the first channel 2 and the upper opening of the second channel 3, the mixed combined gas tends to keep an unsaturated state, the formation of white smoke is fundamentally inhibited, in addition, the heating process of the gas in the first channel 2 also completes a part of heat load of the cooling tower, the part of heat load is free of water evaporation, the heat absorption and the heating of the gas in the first channel 2 also enable a part of evaporated water in the air flow of the second channel 3 to be condensed and recycled, the evaporation capacity of the cooling tower is reduced, and the water saving rate and the sewage emission reduction rate of the cooling tower are both improved.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A dry-wet integrated heat exchange device is characterized by comprising a heat exchanger body, wherein a plurality of first channels which are parallel to each other are arranged on the heat exchanger body, the upper side and the lower side of each first channel are both provided with an opening, a second channel with the upper side and the lower side both provided with openings is arranged between the adjacent first channels, a plurality of concave seals are uniformly distributed on the upper side opening or the lower side opening of each first channel, the concave seals on the adjacent first channels correspond to each other to form a through groove on the heat exchanger body, when the concave seals are positioned at the upper side opening of each first channel, a spray pipe is arranged on the through groove in a matched manner, a valve is arranged on the spray pipe, and the spray pipe is communicated with a cooling tower water inlet pipe; when the concave seal is positioned at the lower side opening of the first channel, a bottom seal is arranged at the lower side opening of the second channel, the bottom seal covers the lower side opening of the second channel except the through groove, and a fresh air channel with an upper side opening is correspondingly arranged below the bottom seal.

2. The dry-wet integrated heat exchange device according to claim 1, wherein the heat exchanger body comprises a plurality of mutually parallel packing sheets, and the first channel and the second channel are formed between adjacent packing sheets.

3. The dry and wet integrated heat exchange device of claim 2 wherein the recessed seal is U-shaped or V-shaped.

4. The dry-wet integrated heat exchange device according to claim 1, wherein the first channel and the second channel are open on both left and right sides.