CN216745544U

CN216745544U - Cooling tower row

Info

Publication number: CN216745544U
Application number: CN202220106518.3U
Authority: CN
Inventors: 王洵
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-06-14
Anticipated expiration: 2032-01-13

Abstract

The utility model discloses a cooling tower row, which comprises a water return main pipe and an air cylinder type cooling tower, wherein a plurality of mechanical draft cooling towers are arranged above the outer side of an air inlet of the air cylinder type cooling tower and are uniformly and continuously distributed along the circumferential direction of the air cylinder type cooling tower; the water return main pipe is connected with a first water return pipe and a second water return pipe which are provided with valves, the first water return pipe is connected with the spray pipes in the air duct type cooling tower, the second water return pipe is connected with the spray pipes in the mechanical ventilation cooling towers, the mechanical ventilation cooling tower is also connected with a water outlet pipe, the water outlet pipe is connected with a water collecting tank of the air duct type cooling tower, and the water collecting tank is also connected with a water outlet main pipe; in the operation process, water flow in the backwater main pipe can be divided into the air cylinder type cooling tower and the mechanical draft cooling tower, and the mechanical draft cooling tower can obviously increase the air volume discharged by the whole cooling tower and dilute fog at the outlet of the air cylinder type cooling tower.

Description

Cooling tower row

Technical Field

The utility model relates to the field of circulating water cooling equipment, in particular to a cooling tower row.

Background

The wind-tube cooling tower is one of natural ventilation cooling towers, and is cooled by air convection effect formed by air density difference inside and outside the tower or natural wind power, but the cooling tower has the defects of small draught and small air quantity in summer, and white smoke at the outlet of the cooling tower is very obvious even in summer with higher temperature, so that the wind-tube cooling tower is not beneficial to environmental protection.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the background art, it is an object of the present invention to provide a cooling tower row which effectively solves the problems in the background art.

In order to realize the purpose, the utility model adopts the following technical scheme: a cooling tower row comprises a water return main pipe and an air cylinder type cooling tower, wherein a plurality of mechanical draft cooling towers are arranged above the outer side of an air inlet of the air cylinder type cooling tower and are uniformly and continuously distributed along the circumferential direction of the cross section of the air cylinder type cooling tower; the mechanical draft cooling tower is characterized in that a first return pipe and a second return pipe with valves are connected to the return main pipe, the first return pipe is connected with a spray pipe in the air duct type cooling tower, the second return pipe is connected with spray pipes in the mechanical draft cooling towers, a water outlet pipe is further connected to the mechanical draft cooling tower, the water outlet pipe is connected with a water collecting tank of the air duct type cooling tower or connected with the inlet side of a circulating water pump of a cooling water system, and a water outlet main pipe is further connected to the water collecting tank.

Furthermore, the mechanical draft cooling tower is a single-side air inlet transverse flow cooling tower.

Further, be provided with adjustable heat exchange assemblies and draught fan in the single face air inlet crossing current cooling tower, adjustable heat exchange assemblies includes the heat exchanger and the shower that links to each other with the second wet return, the heat exchanger is provided with the second passageway including a plurality of first passageways that evenly set up between the adjacent first passageway, equal opening about first passageway and the second passageway, the shower is including first shower and the second shower that has the valve, the spray water of first shower is whole to get into in the first passageway, the spray water of second shower is whole to get into in the second passageway.

Furthermore, two vertical baffles are arranged on the top surface of the heat exchanger, the two vertical baffles divide the top surface of the heat exchanger into a first area, a second area and a third area, the upper openings of second channels in the first area and the third area are closed, and the upper opening of the first channel in the second area is closed; the first spraying pipe corresponds to the first area and the third area, and the second spraying pipe corresponds to the second area.

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

The utility model has the following beneficial technical effects:

the mechanical draft cooling tower and the air cylinder type cooling tower form a row group, water flow in a return water main pipe can be divided into the air cylinder type cooling tower and the mechanical draft cooling tower according to different proportions in the actual operation process according to meteorological conditions, the mechanical draft cooling tower can complete partial heat load and simultaneously can remarkably increase the air quantity discharged by the whole cooling tower and dilute fog at the outlet of the air cylinder type cooling tower, a large amount of obvious white smoke is prevented from being discharged from the outlet of the air cylinder type cooling tower, and the mechanical draft cooling tower and the air cylinder type cooling tower are beneficial to environmental protection and avoiding panic of surrounding residents.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a forced draft cooling tower according to an embodiment of the present invention.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

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, are only for convenience in describing the present invention and simplifying the description, and 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 should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, the cooling tower row according to the embodiment includes a water return main pipe and an air duct type cooling tower 1, wherein a plurality of mechanical draft cooling towers 2 are arranged above an outer side of an air inlet of the air duct type cooling tower 1, and the plurality of mechanical draft cooling towers 2 are uniformly and continuously distributed along a circumferential direction of a cross section of the air duct type cooling tower 1; the water return main pipe is connected with a first water return pipe and a second water return pipe with valves, the water amount in the first water return pipe and the second water return pipe can be respectively adjusted through the valves, thereby realizing the distribution of water flow in the water return main pipe, the first water return pipe is connected with the spray pipe in the air-duct type cooling tower 1, a packing layer 3 is arranged below the spray pipe in the air-duct type cooling tower 1 and is used for enhancing the heat exchange effect of air flow and water flow, the second water return pipe is connected with the spray pipe in each mechanical draft cooling tower 2, the mechanical draft cooling tower 2 is also connected with a water outlet pipe, the water outlet pipe is connected with a water collecting tank 4 of the air-duct type cooling tower 1 or is directly connected with the inlet side of a circulating water pump of the cooling water system, the circulating water pump is used for sending the cooled water flow to heat exchangers of a condenser and the like to absorb heat, and the pressure head of the circulating water pump can be reduced if the water outlet pipe is connected with the inlet side of the circulating water pump because the mechanical draft cooling tower 2 is higher than the ground, the energy consumption of the circulating water pump can be reduced along with the energy consumption, the energy conservation of the circulating water pump is facilitated, the pipeline laying cost can be increased, the water outlet pipe is connected with the water collecting tank 4, the pipeline cost can be saved, and the water collecting tank 4 is further connected with a water outlet main pipe for sending out water flow which is discharged and cooled through the cooling tower.

The mechanical draft cooling tower 2 can be a single-side air inlet cross flow cooling tower, an adjustable heat exchange assembly and an induced draft fan 5 are arranged in the single-side air inlet cross flow cooling tower, the adjustable heat exchange assembly comprises a heat exchanger and a spray pipe connected with a second water return pipe, the heat exchanger comprises a plurality of first channels which are uniformly arranged, a second channel is arranged between the adjacent first channels, the upper part, the lower part, the left part and the right part of the first channel and the second channel are both opened, the spray pipe comprises a first spray pipe 6 and a second spray pipe 7 which are provided with valves, spray water of the first spray pipe 6 completely enters the first channel, spray water of the second spray pipe 7 completely enters the second channel, specifically, when the first spray pipe 6 is opened and the second spray pipe 7 is closed, water is not in the second channel at the moment, outside air transversely enters the mechanical draft cooling tower 2 from the outside to the inside under the action of the induced draft fan 5, in the process of passing through the heat exchanger, a part of air enters the first channel to contact with water flow for heat exchange to generate wet hot air, the other part of air enters the second channel to exchange heat with the water flow and the air in the first channel of the partition wall to generate dry hot air, the dry hot air and the wet hot air are mixed and driven by the draught fan 5 and then are upwards discharged out of the mechanical draft cooling tower 2 and tend to keep an unsaturated state, the generation of white smoke is fundamentally inhibited, the device has the advantage of reducing the evaporation capacity of circulating water, the exhaust gas of the mechanical draft cooling tower 2 continuously flows upwards and then is mixed with the gas discharged from the outlet at the upper side of the air duct type cooling tower 1, the gas discharged from the outlet at the upper side of the air duct type cooling tower 1 is saturated wet hot air generated in the full wet type cooling process, and the part of saturated wet hot air is wrapped and diluted by the unsaturated air discharged from the mechanical draft cooling tower 2 uniformly distributed around the air duct type cooling tower 1, the method can also inhibit the formation of white smoke at the outlet of the air duct type cooling tower 1, has the function of environmental protection, and has particularly outstanding practicability in winter; can open first shower 6 and second shower 7 simultaneously in summer, all take place the wet-type heat transfer process of air and rivers direct contact in first passageway and the second passageway, this mode heat exchange efficiency is high, is favorable to the cooling of circulating water.

One matching form of the heat exchanger and the spray pipe in the mechanical ventilation cooling tower 2 is as follows: be provided with two vertical baffles 8 on the top surface of heat exchanger, two vertical baffles 8 separate the top surface of heat exchanger for first district, second district and third district, first shower 6 corresponds first district and third district, the upper portion opening of the second passageway in first district and the third district seals, avoid rivers in first shower 6 to get into in the second passageway, second shower 7 corresponds the second district, the upper portion opening of the first passageway in the second district seals, avoid rivers in the second shower 7 to get into in the first passageway, above-mentioned heat exchanger includes a plurality of parallel arrangement's packing piece 9, form above-mentioned first passageway or second passageway between the adjacent packing piece 9, the material of preferred packing piece 9 is PVC.

The working principle of the embodiment is as follows: in the actual operation process, the valve opening degree of the first water return pipe and the valve opening degree of the second water return pipe are respectively adjusted according to production and meteorological conditions, return water of a cooling water circulation system enters a cooling tower from a return water main pipe, one part of water flow enters a spray pipe of a mechanical draft cooling tower 2, the other part of water flow enters a spray pipe of an air duct type cooling tower 1, of course, the water flow in the return water main pipe can also be completely sent into the mechanical draft cooling tower 2, and the mechanical draft cooling tower 2 is used for completing all original heat loads of the air duct type cooling tower 1; as mentioned above, the water flow entering the mechanical draft cooling tower 2 is cooled when passing through the heat exchanger, then is collected by the water collecting tray 10 and sent to the inlet side of the circulating water pump or the water collecting tank 4 in the wind barrel type cooling tower 1, the tower gas is discharged upwards after the mechanical draft cooling tower 2 cools the water flow, when the process is carried out, external air also enters the packing layer 3 in the air cylinder type cooling tower 1 from the air inlet of the air cylinder type cooling tower 1 and takes away the heat of water flow, the part of air is upwards discharged out of the tower by the air cylinder type cooling tower 1, the exhaust of the air cylinder type cooling tower 1 is positioned in the middle, the exhaust of the mechanical ventilation cooling tower 2 surrounds the exhaust of the air cylinder type cooling tower 1 all around, the air quantity discharged by the cooling tower is obviously increased, the outlet fog of the air cylinder type cooling tower 1 is diluted, a large amount of obvious white smoke is prevented from being shown at the outlet of the air cylinder type cooling tower 1, and the environment protection and the panic of residents around are facilitated.

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 utility model 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 utility model and the practical application, and to enable others of ordinary skill in the art to understand the utility model for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A cooling tower row is characterized by comprising a water return main pipe and an air cylinder type cooling tower, wherein a plurality of mechanical draft cooling towers are arranged above the outer side of an air inlet of the air cylinder type cooling tower and are uniformly and continuously distributed along the circumferential direction of the cross section of the air cylinder type cooling tower; the water return main pipe is connected with a first water return pipe and a second water return pipe which are provided with valves, the first water return pipe is connected with a spray pipe in the air duct type cooling tower, the second water return pipe is connected with spray pipes in the mechanical ventilation cooling towers, the mechanical ventilation cooling tower is further connected with a water outlet pipe, the water outlet pipe is connected with the inlet side of a circulating water pump of a cooling water system or a water collecting tank of the air duct type cooling tower, and the water collecting tank is further connected with a water outlet main pipe.

2. A cooling tower row according to claim 1, wherein the forced draft cooling tower is a single sided air intake cross flow cooling tower.

3. The cooling tower row according to claim 2, wherein an adjustable heat exchange assembly and an induced draft fan are arranged in the single-face air inlet cross flow cooling tower, the adjustable heat exchange assembly comprises a heat exchanger and a spray pipe connected with the second water return pipe, the heat exchanger comprises a plurality of first channels which are uniformly arranged, a second channel is arranged between the adjacent first channels, the first channel and the second channel are opened from top to bottom and from left to right, the spray pipe comprises a first spray pipe and a second spray pipe, the first spray pipe and the second spray pipe are provided with valves, spray water of the first spray pipe completely enters the first channel, and spray water of the second spray pipe completely enters the second channel.

4. A cooling tower row according to claim 3, wherein two vertical baffles are arranged on the top surface of the heat exchanger, the two vertical baffles divide the top surface of the heat exchanger into a first zone, a second zone and a third zone, the upper openings of the second channels in the first zone and the third zone are closed, and the upper openings of the first channels in the second zone are closed; the first spray pipe corresponds to the first area and the third area, and the second spray pipe corresponds to the second area.

5. A cooling tower row according to claim 3 or 4, wherein the heat exchanger comprises a plurality of parallel arranged packing sheets, and the first or second channel is formed between adjacent packing sheets.