CN104374227A - Cooling tower circulating water overbottom pressure utilization device and method - Google Patents

Cooling tower circulating water overbottom pressure utilization device and method Download PDF

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Publication number
CN104374227A
CN104374227A CN201410686008.8A CN201410686008A CN104374227A CN 104374227 A CN104374227 A CN 104374227A CN 201410686008 A CN201410686008 A CN 201410686008A CN 104374227 A CN104374227 A CN 104374227A
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CN
China
Prior art keywords
cooling tower
water
type hydraulic
pipe type
hydraulic turbine
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201410686008.8A
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Chinese (zh)
Inventor
刘贤成
王亚君
王斌
田风宾
张长明
王玉
王涛
赵福茂
王鑫
李树祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEBEI XINQIYUAN ENERGY TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
HEBEI XINQIYUAN ENERGY TECHNOLOGY DEVELOPMENT Co Ltd
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 HEBEI XINQIYUAN ENERGY TECHNOLOGY DEVELOPMENT Co Ltd filed Critical HEBEI XINQIYUAN ENERGY TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN201410686008.8A priority Critical patent/CN104374227A/en
Publication of CN104374227A publication Critical patent/CN104374227A/en
Pending legal-status Critical Current

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Abstract

The invention provides a cooling tower circulating water overbottom pressure utilization device and method. The device is mainly composed of a water storer, a plurality of fresh water pumps, a cooling tower and a plurality of circulating water pumps, wherein a plurality of draught fans are arranged on a cooling tower, a plurality of water return bypasses are arranged on a main water return pipe of the cooling tower, a pipeline type water turbine is arranged in the horizontal axial direction of each water return bypass, a main shaft of each pipeline type water turbine is connected with a coupler of the corresponding draught fan on the cooling tower, and a liquid outlet of each pipeline type water turbine is communicated with the cooling tower through a water return branch. Through the device and method, industrial circulating water overbottom pressure can be recycled, impellers of the water turbines are pushed to rotate through circulating water overbottom pressure, then the rotation of the impellers is transmitted to the draught fans so that the draught fan can run, and therefore a motor installed on a traditional cooling tower and used for driving the draught fans is replaced, and the purpose of saving electric energy is achieved.

Description

Cooling tower circulating water excess pressure utilizes device and method
Technical field
The present invention relates to industrial circulating water energy-saving equipment technical field, be specifically related to a kind of cooling tower circulating water excess pressure and utilize device and method.
Background technology
The pressure energy more than needed of the circulation of existing enterprise, mainly come from the potential energy that cooling water produces when high-order heat transmission equipment flows down and enters cooling tower, in most cases in order to ensure the water-distributing device that cooling water does not destroy by rush of water in tower, also need to consume this part energy with valve; In addition, because when design cycle water system, general computing system resistance estimates by rule of thumb, also will consider safety coefficient, and the water pump rated head selected is general just bigger than normal, and the actual energy being supplied to recirculated water of water pump just necessarily has more than needed.
But this part overbottom pressure is not generally all recycled and utilizes and waste in the circulation of existing most of enterprise.As shown in Figure 1, cooling-tower circulating water device is primarily of water grain bin, fresh water pump, cooling tower and water circulating pump composition, and recirculated water directly enters cooling tower by return main, has some driven by motor blower fan runnings, cool recirculated water above cooling tower.Such circulating water device, not only makes system overbottom pressure waste, but also will spend into and originally consume this part energy.
Summary of the invention
The invention provides a kind of cooling tower circulating water excess pressure and utilize device and method, the circulating water excess pressure existed to solve prior art can not get the problem recycled.
Apparatus of the present invention are primarily of water grain bin, some fresh water pumps, cooling tower and some water circulating pumps composition, some blower fans are set above cooling tower, solve on return main that technical scheme that its technical problem adopts is cooling tower and some backwater bypasses are set, in every bar backwater bypass level, a pipe type hydraulic turbine is axially set, the main shaft of pipe type hydraulic turbine is connected with the shaft coupling of the blower fan on cooling tower, and the liquid outlet of pipe type hydraulic turbine is communicated with cooling tower by backwater branch road.
A butterfly valve is installed in the bypass of above-mentioned every bar backwater, butterfly valve is directly communicated with cooling tower by pipeline, for controlling and regulating the water yield entering pipe type hydraulic turbine, open this butterfly valve opening large, the water yield that can reduce to enter pipe type hydraulic turbine can reduce pipe type hydraulic turbine rotating speed, avoids blower fan to overrun, during pipe type hydraulic turbine maintenance, can open this butterfly valve, current enter cooling tower by former pipeline.
A kind of cooling tower circulating water excess pressure Application way, in the apparatus of the present, utilize the pressure energy more than needed in existing cooling-tower circulating water device to promote pipe type hydraulic turbine wheel rotation, then drive to blower fan and make it operate to cool recirculated water, concrete grammar step is as follows:
Recirculated water is delivered in return main by water circulating pump, controlled by the butterfly valve that backwater bypass is installed and regulate the water yield entering pipe type hydraulic turbine, recirculated water is by the valve in backwater bypass and telescopic joint, horizontal axis is introduced in pipe type hydraulic turbine, driving pipe type hydraulic turbine does work, current are delivered in cooling tower by backwater branch road by pipe type hydraulic turbine again, pipe type hydraulic turbine is arranged on the motor place of former blower fan, the main shaft of pipe type hydraulic turbine is directly connected with the original shaft coupling of cooling tower, by original power transmission shaft, decelerator drives the running of the blower fan of cooling tower to carry out cooling down to recirculated water, when pipe type hydraulic turbine overhauls, can opened butterfly valve, recirculated water directly enters in cooling tower.
Project of the present invention belongs to overbottom pressure and utilizes project, and before technological transformation, power consumption is 1330.91 ten thousand degree circulating water device year; Year water consumption 120,000 tons.After technological transformation device year power consumption 1030.91 degree; Year water consumption 120,000 tons.Known project year economizes on electricity 3,000,000 degree, and amount to standard coal 1050tce, energy-saving effect is remarkable.
Present invention achieves the recycling of industrial circulating water overbottom pressure, utilize circulating water excess pressure to promote turbine impeller and rotate, then drive to blower fan and make it operate, thus substitute the motor being used for driving blower fan that traditional cooling tower is installed, reach the object of saving electric energy.
Accompanying drawing illustrates:
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of cooling-tower circulating water device in prior art;
Fig. 2 is the structural representation of apparatus of the present invention.
1 return main, 2 backwater bypasses, 3 pipe type hydraulic turbines, 4 blower fans, 5 backwater branch roads, 6 butterfly valves in figure.
Detailed description of the invention:
As shown in Figure 2, a kind of cooling tower circulating water excess pressure utilizes device, store up primarily of water, some fresh water pumps, cooling tower and some water circulating pumps composition, some blower fans are set above cooling tower, the return main 1 of cooling tower arranges some backwater bypasses 2, every bar backwater bypass 2 horizontal axis arranges a pipe type hydraulic turbine 3, the main shaft of pipe type hydraulic turbine 3 is connected with the shaft coupling of the blower fan 4 on cooling tower, the liquid outlet of pipe type hydraulic turbine 3 is communicated with cooling tower by backwater branch road 5, a butterfly valve 6 is installed in every bar backwater bypass 2, butterfly valve 6 is directly communicated with cooling tower by pipeline, for controlling and regulating the water yield entering pipe type hydraulic turbine 3, open this butterfly valve 6 aperture large, the water yield that can reduce to enter pipe type hydraulic turbine 3 can reduce rotational speed of water turbine, blower fan is avoided to overrun, when pipe type hydraulic turbine 3 overhauls, this butterfly valve 6 can be opened, current enter cooling tower by former pipeline.
A kind of cooling tower circulating water excess pressure Application way, in the apparatus of the present, utilize the pressure energy more than needed in existing cooling-tower circulating water device to promote pipe type hydraulic turbine 3 wheel rotation, then drive to blower fan 4 and make it operate to cool recirculated water, concrete grammar step is as follows:
Recirculated water is delivered in return main 1 by water circulating pump, control by the butterfly valve 6 that backwater bypass 2 is installed and regulate the water yield entering pipe type hydraulic turbine 3, recirculated water is by the valve in backwater bypass 2 and telescopic joint, horizontal axis is introduced in pipe type hydraulic turbine 3, pipe type hydraulic turbine 3 is driven to do work, current are delivered in cooling tower by backwater branch road 5 by pipe type hydraulic turbine 3 again, pipe type hydraulic turbine 3 is arranged on the motor place of former blower fan, the main shaft of pipe type hydraulic turbine 3 is directly connected with the original shaft coupling of cooling tower, by original power transmission shaft, decelerator drives the running of the blower fan of cooling tower to carry out cooling down to recirculated water, when pipe type hydraulic turbine overhauls, can opened butterfly valve, recirculated water directly enters in cooling tower.

Claims (3)

1. a cooling tower circulating water excess pressure utilizes device, primarily of water grain bin, some fresh water pumps, cooling tower and some water circulating pumps composition, some blower fans are set above cooling tower, the return main that it is characterized in that cooling tower arranges some backwater bypasses, in every bar backwater bypass level, a pipe type hydraulic turbine is axially set, the main shaft of pipe type hydraulic turbine is connected with the shaft coupling of the blower fan on cooling tower, and the liquid outlet of pipe type hydraulic turbine is communicated with cooling tower by backwater branch road.
2. cooling tower circulating water excess pressure according to claim 1 utilizes device, it is characterized in that a butterfly valve is installed in the bypass of every bar backwater, and butterfly valve is directly communicated with cooling tower by pipeline.
3. a cooling tower circulating water excess pressure Application way, it is characterized in that utilizing in device at cooling tower circulating water excess pressure according to claim 1, utilize the pressure energy more than needed in existing cooling-tower circulating water device to promote pipe type hydraulic turbine wheel rotation, drive to blower fan again to make it operate to cool recirculated water, concrete grammar step is as follows:
Recirculated water is delivered in return main by water circulating pump, controlled by the butterfly valve that backwater bypass is installed and regulate the water yield entering pipe type hydraulic turbine, recirculated water is by the valve in backwater bypass and telescopic joint, horizontal axis is introduced in pipe type hydraulic turbine, driving pipe type hydraulic turbine does work, current are delivered in cooling tower by backwater branch road by pipe type hydraulic turbine again, pipe type hydraulic turbine is arranged on the motor place of former blower fan, the main shaft of pipe type hydraulic turbine is directly connected with the original shaft coupling of cooling tower, by original power transmission shaft, decelerator drives the running of the blower fan of cooling tower to carry out cooling down to recirculated water, when pipe type hydraulic turbine overhauls, can opened butterfly valve, recirculated water directly enters in cooling tower.
CN201410686008.8A 2014-11-19 2014-11-19 Cooling tower circulating water overbottom pressure utilization device and method Pending CN104374227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410686008.8A CN104374227A (en) 2014-11-19 2014-11-19 Cooling tower circulating water overbottom pressure utilization device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410686008.8A CN104374227A (en) 2014-11-19 2014-11-19 Cooling tower circulating water overbottom pressure utilization device and method

Publications (1)

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CN104374227A true CN104374227A (en) 2015-02-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913659A (en) * 2015-06-21 2015-09-16 唐山瓦特合同能源管理有限公司 Circulating water delivery system capable of realizing closed-loop recovery of excess backwater pressure and operation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202814147U (en) * 2012-09-06 2013-03-20 刘昌建 Hydraulic fan cooling tower with bypass safety control device
CN203081642U (en) * 2012-12-24 2013-07-24 重庆堪文节能科技有限公司 Water turbine water supply make-up system and cooling tower with same
CN103868399A (en) * 2014-03-31 2014-06-18 上海宝要节能科技有限公司 Pipeline flow merging and distribution structure of external water turbine cooling tower
CN204255171U (en) * 2014-11-19 2015-04-08 河北新启元能源技术开发股份有限公司 Cooling tower circulating water excess pressure utilizes device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202814147U (en) * 2012-09-06 2013-03-20 刘昌建 Hydraulic fan cooling tower with bypass safety control device
CN203081642U (en) * 2012-12-24 2013-07-24 重庆堪文节能科技有限公司 Water turbine water supply make-up system and cooling tower with same
CN103868399A (en) * 2014-03-31 2014-06-18 上海宝要节能科技有限公司 Pipeline flow merging and distribution structure of external water turbine cooling tower
CN204255171U (en) * 2014-11-19 2015-04-08 河北新启元能源技术开发股份有限公司 Cooling tower circulating water excess pressure utilizes device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104913659A (en) * 2015-06-21 2015-09-16 唐山瓦特合同能源管理有限公司 Circulating water delivery system capable of realizing closed-loop recovery of excess backwater pressure and operation method
CN104913659B (en) * 2015-06-21 2017-03-01 唐山瓦特合同能源管理有限公司 Backwater remaining energy closed loop reclaims circulation water conveying system and operation method

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Application publication date: 20150225

RJ01 Rejection of invention patent application after publication