CN102997708A - Low-temperature cooling tower - Google Patents

Low-temperature cooling tower Download PDF

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Publication number
CN102997708A
CN102997708A CN2012104784714A CN201210478471A CN102997708A CN 102997708 A CN102997708 A CN 102997708A CN 2012104784714 A CN2012104784714 A CN 2012104784714A CN 201210478471 A CN201210478471 A CN 201210478471A CN 102997708 A CN102997708 A CN 102997708A
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CN
China
Prior art keywords
tower
cooling
water
air
cooled
Prior art date
Application number
CN2012104784714A
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Chinese (zh)
Inventor
张育仁
Original Assignee
张育仁
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张育仁 filed Critical 张育仁
Priority to CN2012104784714A priority Critical patent/CN102997708A/en
Publication of CN102997708A publication Critical patent/CN102997708A/en

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Abstract

The invention discloses a low-temperature cooling tower. The cooling tower comprises a tower body which is provided with a cavity. The cavity is surrounded by a shell, is used for cooling water to be cooled and comprises a cooling zone and an evaporation zone; a spraying device of the water to be cooled is arranged between the cooling zone and the evaporation zone; the cooling zone is provided with a filler layer positioned at the lower part of the spraying device; the evaporation zone is provided with an air outlet and a fan guiding water mist in the cavity out of the tower body; the shell of the tower body is provided with at least one air preprocessing device; each air preprocessing device is provided with an air ventilation channel surrounded by the shell and comprises an inlet end communicated with an environment outside the tower body, and an outlet end communicated with the cavity of the tower body; and a cooling device is arranged in the channel between the inlet end and the corresponding outlet end. The low-temperature cooling tower can reduce the degree of approximation to be about 1 DEG C, and plays roles in improving the working efficiency, reducing the energy consumption and saving energy aiming at related equipment working with the cooling water.

Description

Low-temp cooling tower

Technical field

The present invention relates to a kind of low-temp cooling tower.

Background technology

Fields such as electricity generation system, air-conditioning system is comparatively widely for the use of cooling tower, the water-cooled effect of circulating confession is relevant with the air dielectric that enters cooling tower, in the higher situation of the temperature of tower body outside, external air temperature may be higher than the temperature of tower body inside, in the tower body internal heat exchange process with contact heat-exchanging, evaporation and heat-exchange, it directly has influence on the cooling effect of cooling tower.

For air-conditioning system, if the temperature that is lowered from cooling tower cooling water out can accomplish to descend 1 ℃, be to produce positive effect for the raising of the main frame efficient of air-conditioning system.Such as being about 37 ℃ from air-conditioner host coolant-temperature gage to be cooled out, and traditional cooling tower can be accomplished about cooling water temperature to 32 °, if can further reduce the temperature of cooling water, then air-conditioner host further reduces in power consumption last time, because air-conditioner host is the equipment of highly energy-consuming, does not meet current energy-conservation development trend.Same is that electricity generation system also directly has influence on the problem of energy consumption height for the water temperature of the cooling water of supplying with.

Summary of the invention

Purpose of the present invention is exactly in order to address the above problem, and a kind of low-temp cooling tower that can further reduce the cooling effect of cooling tower is provided.

To achieve these goals, the present invention adopts following technical scheme:

A kind of low-temp cooling tower, it has tower body, this tower body has one and is gone along with sb. to guard him by housing and to form and for water-cooled cavity to be cooled, described cavity contains cooled region and evaporation region, be provided with water spray system to be cooled between described cooled region and evaporation region, described cooled region is provided with the packing layer that is positioned at the spray equipment bottom, described evaporation region has an air outlet and a fan of the water smoke of cavity being derived tower body, it is characterized in that, the housing of described tower body is provided with at least one air pretreatment device, this air pretreatment device has one and is gone along with sb. to guard him the air communication channel that forms by housing, this passage contains an arrival end that communicates with the tower body external environment condition and a port of export that communicates with the tower body cavity, and the passage between arrival end and the port of export is provided with cooling device.

Further, described cooling device contains: evaporative cooling module and the spray module that cooperates the evaporative cooling module.

Further, described spray module has shower nozzle, is positioned at passage and as the water of cooling source, water extraction is risen to water pump and the spray piping that evaporative cooling module top sprays.

Further, described evaporative cooling module adopts cooling tower filler.

Further, also comprise: the inlet duct of being located at passage.

Further, described air pretreatment device is positioned at the sidewall of cooling tower shell, and magnitude setting is two.

The invention has the beneficial effects as follows: (1) installs the air pretreatment device at cooling tower, can effectively reduce the effective temperature of extraneous air, and then so that the water in this part air and the cooling tower is further realized heat exchange, thereby reduce the temperature of water to be cooled; (2) cooperate this low-temp cooling tower in fields such as air-conditioning system, electricity generation systems, can effectively improve the efficient of air-conditioner host, steam turbine, but also can carry out preferably energy-saving effect; (3) the air pretreatment device is as the structure of sealing, and its installation is comparatively convenient, and the energy consumption of single air pretreatment device is lower, and only water pump need to expend certain energy; (4) this cooling tower can further reduce the temperature of water to be cooled about 4 ℃ on the original basis, is quite obvious for energy-conservation effect.

Description of drawings

Fig. 1 is the low-temp cooling tower structural representation.

Fig. 2 is I place enlarged drawing among Fig. 1.

The specific embodiment

For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.

The below is with the air-conditioning system example, that join with cooling tower is air-conditioner host F, this air-conditioner host has the cooling circulating water outlet pipe P1 that links to each other with cooling tower and is connected to the cooling circulating water return pipe P2 of cooling tower bottom, air-conditioner host cools off via cooling tower from cooling off circulating water outlet pipe outflow air-conditioner host through the cooling water that heat exchange temperature raises, generally, from the water temperature of the water to be cooled of cooling circulating water outlet pipe about 37 ℃, and traditional cooling tower can only have level about 32 ℃ to water outlet with water treatment to be cooled, this is for air-conditioner host, and this leaving water temperature can allow air-conditioner host consume more electric energy equally.

As shown in Figure 1, a kind ofly degree of approximation (degree of approximation=cooling tower leaving water temperature one wet-bulb temperature) can be contracted to the low-temp cooling tower about 1 ℃, it has tower body 1, this tower body has one and is gone along with sb. to guard him by housing and to form and for water-cooled cavity 2 to be cooled, described cavity contains cooled region and evaporation region, be provided with water spray system to be cooled between described cooled region and evaporation region, water-locator is common spray mode, described cooled region is provided with the packing layer that is positioned at the spray equipment bottom, water to be cooled is ejected in this structure via spray equipment and carries out heat exchange, packing layer is according to the size setting of cooled region, arrange along the cooling tower shell inwall, the temporary transient regional intercommunication that stops of cooling water that evaporation region and cooled region below do not occur is advisable, described evaporation region has an air outlet 3 and a fan 4 of the water smoke of cavity being derived tower body, air outlet is positioned at the top of cooling tower, fan has the effect of the water smoke after the outside discharging heat exchange, the housing of described tower body is provided with two air pretreatment devices 5, air pretreatment device 5 can be symmetrically arranged in the sidewall of housing, this air pretreatment device has one and is gone along with sb. to guard him the air communication channel that forms by housing 50, whole device can be regular or irregular profile, the profile of rule is such as square, circular etc., this passage contains an arrival end 51 that communicates with the tower body external environment condition and a port of export that communicates with the tower body cavity, filler setting on the cooling tower inwall can arrange support at port of export place, local filler covers support, and the port of export arranges certain distance with the filler that is in same level, certainly, also can adopt the port of export is arranged network, filler directly is installed on this network, passage between arrival end and the port of export is provided with cooling device, for cooling device, cooling off with the form that produces the cascade curtain is simple and the most economical and the most practical means.

Described cooling device contains: evaporative cooling module 53 and the spray module that cooperates the evaporative cooling module, the evaporation module adopts the passage interstitital texture that contains some spaces, such as filler etc., be convenient to passing through of sky G﹠W, and, help finishing of heat exchange, the passage of air pretreatment device adopts linear type structure, is positioned at then that the entrance point of passage and the port of export then arrange local crowning and the cavity that holds that forms low-temperature receiver.

Referring to Fig. 2, described spray module has shower nozzle, be positioned at passage and as the water 55 of cooling source, water extraction is risen to water pump 54 and the spray piping that evaporative cooling module top sprays, shower nozzle roughly is positioned at the gap location of filler and passage, be positioned at the filler top and be evenly arranged, the low-temperature receiver that water is located immediately at passage holds cavity.

Described evaporative cooling module adopts cooling tower filler, the cross section of filler and the cross section of passage are unanimous on the whole, the assemblage gap that only leaves spray equipment gets final product, this gap should not be too large, otherwise, hot-air taps into the cooling effect that then can affect us into cooling tower by this part direct clearance, the kind of filler is more, and what conventional means can obtain has: S ripple filler, step Trapezium oblique wave filler, some ripple filler, two-way ripple filler, bias ripple filler, the wrong filler of oblique, the sinusoidal wave filler of poor position formula.

The air pretreatment device also comprises: the inlet duct 52 of being located at passage, it is as the guiding mechanism of passage air-flow, extraneous air is constantly sucked in a steady stream the cavity of cooling tower, for inlet duct, can select fan, in the porch of passage comparatively ideal is set, the support that fan is set in the porch can be finished layout.

For summer, air themperature is higher, air themperature is higher than the inflow temperature of cooling tower often, the contact heat-exchanging direction is airborne heat transferred recirculated water, heat exchanging is disadvantageous, although evaporation and heat-exchange is greater than contact heat-exchanging, but the air quantity that blower fan produces is certain, therefore when environment temperature is higher, enter the water to be cooled that cooling tower carries out cooling operations and under the impact of hot-air, be difficult to further cooling, and take this air pretreatment device, then hot-air such as in 40 ℃ the situation from arrival end by the fan introduction channel after, under the cooling exchange interaction of filler, water temperature can be reduced to 35 ℃, and compared to without overcooled hot-air, its advantage is significant, adopt our low-temp cooling tower, 28 ℃ of wet-bulb temperature, cooling tower leaving water temperature can drop to 29~30 ℃, about low 2 degree of leaving water temperature than common cooling tower, in the situation that the cooling water reduction is 1 ℃, air-conditioner host Energy Efficiency Ratio (COP) can improve 5~10%.In air-conditioner host refrigeration, the heat transfer of water and air is the forward heat exchange, and certain, we also can utilize reverse heat-exchange, and namely air is to the mode of heat transfer water energy saving in addition.

Claims (6)

1. low-temp cooling tower, it has tower body, this tower body has one and is gone along with sb. to guard him by housing and to form and for water-cooled cavity to be cooled, described cavity contains cooled region and evaporation region, be provided with water spray system to be cooled between described cooled region and evaporation region, described cooled region is provided with the packing layer that is positioned at the spray equipment bottom, described evaporation region has an air outlet and a fan of the water smoke of cavity being derived tower body, it is characterized in that, the housing of described tower body is provided with at least one air pretreatment device, this air pretreatment device has one and is gone along with sb. to guard him the air communication channel that forms by housing, this passage contains an arrival end that communicates with the tower body external environment condition and a port of export that communicates with the tower body cavity, and the passage between arrival end and the port of export is provided with cooling device.
2. low-temp cooling tower according to claim 1 is characterized in that, described cooling device contains: evaporative cooling module and the spray module that cooperates the evaporative cooling module.
3. low-temp cooling tower as claimed in claim 1 is characterized in that, described spray module has shower nozzle, be positioned at passage and as the water of cooling source, water extraction is risen to water pump and the spray piping that evaporative cooling module top sprays.
4. low-temp cooling tower as claimed in claim 1 is characterized in that, described evaporative cooling module adopts cooling tower filler.
5. low-temp cooling tower as claimed in claim 1 is characterized in that, also comprises: the inlet duct of being located at passage.
6. low-temp cooling tower as claimed in claim 1 is characterized in that, described air pretreatment device is positioned at the sidewall of cooling tower shell, and magnitude setting is two.
CN2012104784714A 2012-11-22 2012-11-22 Low-temperature cooling tower CN102997708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104784714A CN102997708A (en) 2012-11-22 2012-11-22 Low-temperature cooling tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104784714A CN102997708A (en) 2012-11-22 2012-11-22 Low-temperature cooling tower

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CN102997708A true CN102997708A (en) 2013-03-27

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154780A (en) * 2014-07-22 2014-11-19 张家港市金腾化工机械制造有限公司 Cooling recycling device
CN111023856A (en) * 2019-12-21 2020-04-17 江苏唐问节能环保科技有限公司 Heat pipe fan heater

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341796A (en) * 1986-08-06 1988-02-23 Mitsui Toatsu Chem Inc Cooling tower
CN101050924A (en) * 2007-05-15 2007-10-10 株洲市兴民科技有限公司 Method for improving noise of off tower air flow and its air cooling tower
CN101169299A (en) * 2007-11-30 2008-04-30 清华大学 Indirect evaporation type cooling/condensing device
CN201327307Y (en) * 2008-10-15 2009-10-14 上海汽车资产经营有限公司 Open-type multi-source double-effect energy tower
CN202973950U (en) * 2012-11-22 2013-06-05 张育仁 Low-temperature cooling tower

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6341796A (en) * 1986-08-06 1988-02-23 Mitsui Toatsu Chem Inc Cooling tower
CN101050924A (en) * 2007-05-15 2007-10-10 株洲市兴民科技有限公司 Method for improving noise of off tower air flow and its air cooling tower
CN101169299A (en) * 2007-11-30 2008-04-30 清华大学 Indirect evaporation type cooling/condensing device
CN201327307Y (en) * 2008-10-15 2009-10-14 上海汽车资产经营有限公司 Open-type multi-source double-effect energy tower
CN202973950U (en) * 2012-11-22 2013-06-05 张育仁 Low-temperature cooling tower

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154780A (en) * 2014-07-22 2014-11-19 张家港市金腾化工机械制造有限公司 Cooling recycling device
CN111023856A (en) * 2019-12-21 2020-04-17 江苏唐问节能环保科技有限公司 Heat pipe fan heater

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Application publication date: 20130327