CN102798317B - Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof - Google Patents
Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof Download PDFInfo
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- CN102798317B CN102798317B CN201210320216.7A CN201210320216A CN102798317B CN 102798317 B CN102798317 B CN 102798317B CN 201210320216 A CN201210320216 A CN 201210320216A CN 102798317 B CN102798317 B CN 102798317B
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Abstract
The invention discloses a cooling system capable of on-line cleaning a heat exchanger, which comprises at least two branches. Each branch comprises a heat exchanger and a water inlet drain valve. Both ends of the heat exchanger are respectively connected with a trunk water inlet pipeline and a trunk backwater pipeline through branch pipes, the trunk backwater pipeline is provided with a trunk backwater valve, and branch pipes on both sides of the heat exchanger are respectively provided with a water inlet valve and a backwater valve; the water inlet drain valve is arranged on the branch pipe between the heat exchanger and the water inlet valve; and the water inlet drain valve is connected with a drain pipe. According to the invention, the drain pipe and the drain valve are arranged on the branch pipeline, so that the cooling system capable of on-line cleaning the heat exchanger can on-line clean the heat exchanger by utilizing the original pipeline and valve of the cooling system so as to avoid offline cleaning, which is labor-consuming and time-consuming. In addition, the cleaning manner with the complicated water inlet or backwater pipeline switch equipment or the cleaning manner of adding a cleaning pipeline pump in the prior art is not required.
Description
Technical field
The present invention relates to the cleaning technique field of cooling water cold heat exchanger, particularly a kind of cooling system and cleaning method thereof of energy on-line cleaning heat exchanger.
Background technology
Modern industry production line, as the machinery of large-scale thin plate continuous hot-rolling mill and electrical equipment adopt clean circulating water cooling system in a large number, wherein water cooling heat exchanger (hereinafter to be referred as heat exchanger) is requisite key equipment in cooling system, for all kinds of media to equipment itself or equipment, carries out circulating cooling.But owing to entering unavoidably some impurity in clean circulating water cool cycles process out of doors, make heat exchanger blockage phenomenon frequently, and then cause equipment cooling bad and cause thus equipment fault, therefore regularly heat exchanger cleans.
The general employing of the at present cleaning of heat exchanger pulled down the mode that heat exchanger carries out off-line cleaning, but this kind of cleaning way is time-consuming and require the downtime of equipment longer.Meanwhile, also there are at present a lot of on-line cleaning methods, but mostly need complicated pipeline switching device, realize cost higher.
Fig. 1 is the pipeline connection of at present general water cooling system, and the cooling system in figure mainly comprises that trunk water inlet pipe 3, trunk return pipe 4, trunk inlet valve 1, trunk backwater valve 2, branch's water inlet pipe 6, branch's return pipe 7, branch's inlet valve 8, branch's backwater valve 9 and heat exchanger 5(system generally comprise a plurality of heat exchangers) etc.
Above-mentioned cooling system cannot be realized heat exchanger on-line cleaning, must utilize the repair time, heat exchanger is changed to rear off-line and clean.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of cooling system of energy on-line cleaning heat exchanger; solve the mode that in prior art, in cooling system, the cleaning of heat exchanger adopts off-line to clean take a lot of work, time-consuming and require the downtime of equipment longer; and adopt on-line cleaning method to need complicated pipeline switching device, realize the problem that cost is higher.
For solving the problems of the technologies described above, the invention provides a kind of cooling system of energy on-line cleaning heat exchanger, cooling system comprises at least two branch roads, described branch road comprises heat exchanger and water inlet blowoff valve, the two ends of described heat exchanger by arm respectively with trunk inlet pipeline, trunk water return pipeline connects, described trunk water return pipeline is provided with trunk backwater valve, on two side branch of described heat exchanger, be separately installed with inlet valve and backwater valve simultaneously, described water inlet blowoff valve is arranged on the bye-pass between described heat exchanger and its inlet valve, described water inlet blowoff valve is connected with blow-off pipe.
For solving the problems of the technologies described above, the present invention also provides a kind of cleaning method of cooling system of energy on-line cleaning heat exchanger, uses and comprises cooling system and described water inlet blowoff valve, can realize the on-line cleaning of heat exchanger.
Further, this cleaning method comprises: the inlet valve of closing the described heat exchanger place branch road that need to be cleaned; Close the trunk backwater valve of trunk water return pipeline; Open the water inlet sewage draining valve of this branch road, close the backwater sewage draining valve of this branch road simultaneously; The valve of other branch roads keeps normal duty, i.e. the equal state in opening of the inlet valve of other branch road and backwater valve, and the return pipe branch road heat exchanger that current enter institute's flushing heat exchanging device through other pipeline heat exchanger carries out back flush.
Cooling system and the cleaning method thereof of energy on-line cleaning heat exchanger provided by the invention, by blow-off pipe and sewage draining valve are installed on bye-pass, realize the on-line cleaning of heat exchanger, avoid time-consuming off-line to clean, also without the complicated cleaning way that enters water return pipeline switching device or add in addition pipe blow-through pump in prior art.
Accompanying drawing explanation
Fig. 1 is the pipeline connection diagram of at present general water-cooled heat-exchange system;
The connection diagram of the cooling system of the energy on-line cleaning heat exchanger that Fig. 2 provides for the embodiment of the present invention.
The specific embodiment
Referring to Fig. 2, the cooling system of a kind of energy on-line cleaning heat exchanger that the embodiment of the present invention provides, comprises at least two branch roads, and this branch road comprises heat exchanger 11 and water inlet blowoff valve 10; The two ends of heat exchanger 11 are connected with trunk inlet pipeline 4, trunk water return pipeline 5 respectively by arm, trunk water return pipeline is provided with trunk backwater valve, on two side branch of heat exchanger 11, be separately installed with inlet valve 6 and backwater valve 7 simultaneously, water inlet blowoff valve 10 is arranged on the arm of 6 of heat exchanger 11 and its inlet valves, and water inlet blowoff valve 10 is connected with blow-off pipe 8.
Wherein, this cooling system is also provided with backwater blowoff valve 12 on the arm of 7 of heat exchanger 11 and its backwater valves, and this backwater blowoff valve 12 is connected with blow-off pipe 9;
Wherein, this cooling system also comprises Yi Ge UNICOM pipeline on the branch road of heat exchanger 11, on this UNICOM's pipeline, UNICOM's valve 13 is installed, and one end of UNICOM's pipeline is connected with the branch road pipeline between trunk inlet pipeline 4 with the inlet valve 6 of heat exchanger 11, the other end is connected with the branch road pipeline between heat exchanger 11 with the backwater valve 7 of heat exchanger 11;
Wherein, this cooling system also connects UNICOM's pipeline between trunk inlet pipeline 4, trunk water return pipeline 5, and UNICOM's valve 3 is installed on UNICOM's pipeline, and one end of UNICOM's pipeline is connected with trunk inlet pipeline 4, and the other end is connected with trunk water return pipeline 5;
Certainly, when this cooling system includes above-mentioned UNICOM's pipeline and UNICOM's valve, no matter be the branch road that is connected to heat exchanger place, or be connected with trunk outlet pipe with trunk water inlet pipe, this cooling system, in the situation that only comprising a branch road, equally also can solve the problem to be solved in the present invention.
For solving the problems of the technologies described above, the present invention also provides a kind of cleaning method of cooling system of energy on-line cleaning heat exchanger, uses and comprises cooling system and water inlet blowoff valve 10, can realize the on-line cleaning of heat exchanger 11;
Wherein, this cleaning method can be realized as follows, comprises reverse cleaning, that is: first, close the inlet valve 6 of the described heat exchanger 11 place branch roads that need to be cleaned, open the water inlet sewage draining valve 10 of this branch road, close the backwater sewage draining valve 12 of this branch road simultaneously; Then, close the trunk backwater valve 2 of trunk water return pipeline 5, the valve of other branch roads keeps normal duty, i.e. the equal state in opening of inlet valve 6 and backwater valve 7; Finally, the backwater of cooling system is all discharged from the water inlet sewage draining valve 10 of this branch road; Certainly, the heat exchanger 11 being cleaned can be one, also can be a plurality of, and the branch road being cleaned at this carries out after back flush, can also close the backwater valve 7 of this branch road, close the water inlet sewage draining valve 10 of this branch road simultaneously, open backwater sewage draining valve 12, open the inlet valve 6 of this branch road, realize forward and clean the object that reaches increase developing result;
Wherein, this cleaning method can also be realized as follows, comprise reverse cleaning, that is: first, UNICOM's pipeline and UNICOM's valve 13 of the heat exchanger 11 place branch roads that use need to be cleaned, open this UNICOM's valve 13, open the water inlet sewage draining valve 10 of this branch road simultaneously, close the backwater sewage draining valve 12 of this branch road; Then, close inlet valve 6 and the backwater valve 7 of this branch road; The backwater of the heat exchanger 11 finally, being cleaned is all directly discharged from the water inlet sewage draining valve 10 of this branch road;
Wherein, this cleaning method can also be realized as follows, comprises reverse cleaning, uses UNICOM's pipeline and the UNICOM's valve 3 in trunk water lines that is:, opens this UNICOM's valve 3 simultaneously, closes the trunk backwater valve on trunk water return pipeline; Close the inlet valve 6 of the heat exchanger 11 place branch roads that need cleaning, open the water inlet sewage draining valve 10 of this branch road, close the backwater sewage draining valve 12 of this branch road simultaneously.
Wherein, this cleaning method, after reverse cleaning, can also comprise forward and rinse, and further strengthens cleaning performance, and it comprises: first open the backwater sewage draining valve 12 of the heat exchanger 11 place branch roads that need to be cleaned, close the water inlet sewage draining valve 10 of this branch road simultaneously; Then, close the backwater valve 7 of this branch road, simultaneously the valve of other branch roads keeps normal duty, i.e. the equal state in opening of inlet valve 6 and backwater valve 7; The backwater of the heat exchanger 11 finally, being cleaned is all directly discharged from the backwater sewage draining valve 12 of this branch road; Certainly, the heat exchanger 11 being cleaned can be one, can be also a plurality of.
Cooling system and the cleaning method thereof of energy on-line cleaning heat exchanger provided by the invention, by blow-off pipe and sewage draining valve are installed on bye-pass, realize the on-line cleaning of heat exchanger, avoid time-consuming off-line to clean, also without the complicated cleaning way that enters water return pipeline switching device or add in addition pipe blow-through pump in prior art.
It should be noted last that, the above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to example, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. the cooling system of an energy on-line cleaning heat exchanger, it is characterized in that, cooling system comprises at least two branch roads, described branch road comprises heat exchanger and water inlet blowoff valve, the two ends of described heat exchanger are connected with trunk inlet pipeline, trunk water return pipeline respectively by arm, described trunk water return pipeline is provided with trunk backwater valve, on two side branch of described heat exchanger, be separately installed with inlet valve and backwater valve simultaneously, described water inlet blowoff valve is arranged on the arm between described heat exchanger and its inlet valve, and described water inlet blowoff valve is connected with blow-off pipe;
On the arm between described heat exchanger and its backwater valve, backwater blowoff valve is also installed, this backwater blowoff valve is connected with blow-off pipe;
On the branch road of described heat exchanger, also comprise Yi Ge UNICOM pipeline, on described UNICOM pipeline, UNICOM's valve is installed, and one end of described UNICOM pipeline is connected with the branch road pipeline between trunk inlet pipeline with the inlet valve of described heat exchanger, the other end is connected with the branch road pipeline between described heat exchanger with the backwater valve of described heat exchanger.
As claimed in claim 1 can on-line cleaning the cooling system of heat exchanger, it is characterized in that, between trunk inlet pipeline, trunk water return pipeline, also connect UNICOM's pipeline, on described UNICOM pipeline, UNICOM's valve is installed, one end of described UNICOM pipeline is connected with trunk inlet pipeline, and the other end is connected with trunk water return pipeline.
3. the cleaning method of the cooling system of an energy on-line cleaning heat exchanger, be applied to the cooling system of energy on-line cleaning heat exchanger as claimed in claim 1, it is characterized in that, use and comprise cooling system and described water inlet blowoff valve, can realize the on-line cleaning of heat exchanger.
4. the cleaning method of the cooling system of energy on-line cleaning heat exchanger as claimed in claim 3, is characterized in that, comprises reverse cleaning, closes the inlet valve of the heat exchanger place branch road that needs cleaning that is:; Close the trunk backwater valve of trunk water return pipeline; Open the water inlet sewage draining valve of this branch road, close the backwater sewage draining valve of this branch road simultaneously; The valve of other branch roads keeps normal duty, i.e. the equal state in opening of the inlet valve of other branch road and backwater valve; The quantity of the described heat exchanger being cleaned at least comprises one.
As claimed in claim 3 can on-line cleaning the cleaning method of cooling system of heat exchanger, it is characterized in that, this cleaning method can also be realized as follows, comprise reverse cleaning, that is: UNICOM's pipeline and UNICOM's valve of the described heat exchanger place branch road that use need to be cleaned, open this UNICOM's valve; Close inlet valve and the backwater valve of this branch road; Open the water inlet sewage draining valve of this branch road, close the backwater sewage draining valve of this branch road simultaneously; The quantity of the described heat exchanger being cleaned at least comprises one.
6. the cleaning method of the cooling system of an energy on-line cleaning heat exchanger, be applied to the cooling system of energy on-line cleaning heat exchanger as claimed in claim 2, it is characterized in that, this cleaning method can be realized as follows, comprise reverse cleaning, that is: use UNICOM's pipeline and the UNICOM's valve in trunk water lines, open this UNICOM's valve simultaneously, close the trunk backwater valve on trunk water return pipeline; Close the inlet valve of the heat exchanger place branch road that needs cleaning, open the water inlet sewage draining valve of this branch road, close the backwater sewage draining valve of this branch road simultaneously.
7. the cleaning method of the cooling system of the energy on-line cleaning heat exchanger as described in claim 4 to 6 any one, it is characterized in that, at described heat exchanger, be reversed after cleaning, also carry out forward cleaning, that is: close the backwater valve of the described heat exchanger place branch road that need to be cleaned; Open the backwater sewage draining valve of this branch road, close the water inlet sewage draining valve of this branch road simultaneously; Open the inlet valve of this branch road, the quantity of the described heat exchanger being cleaned at least comprises one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210320216.7A CN102798317B (en) | 2012-08-31 | 2012-08-31 | Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210320216.7A CN102798317B (en) | 2012-08-31 | 2012-08-31 | Cooling system capable of on-line cleaning heat exchanger and cleaning method thereof |
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| CN102798317A CN102798317A (en) | 2012-11-28 |
| CN102798317B true CN102798317B (en) | 2014-04-16 |
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Families Citing this family (8)
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| CN104102849B (en) * | 2014-07-31 | 2017-03-22 | 攀钢集团西昌钢钒有限公司 | Method for calculating downtime of hot continuous rolling production process |
| CN105780871A (en) * | 2016-05-11 | 2016-07-20 | 句容市恒盛电子水表厂 | Water outlet cleaning device for tap water pipe |
| CN107401858A (en) * | 2017-08-02 | 2017-11-28 | 江苏世林博尔制冷设备有限公司 | Source of sewage self-cleaning dry evaporator and control method |
| CN107846115A (en) * | 2017-11-20 | 2018-03-27 | 山西太钢不锈钢股份有限公司 | Finishing mill frame main motor cooling means |
| CN108571915A (en) * | 2018-04-27 | 2018-09-25 | 张家港韶液液压技术有限公司 | The on-line automatic back purge system of water cooler |
| CN108869412A (en) * | 2018-06-29 | 2018-11-23 | 东方电气集团东方汽轮机有限公司 | A kind of the combustion engine compressor blade cleaning device and method of automatic control |
| CN110274515A (en) * | 2019-07-22 | 2019-09-24 | 联峰钢铁（张家港）有限公司 | A kind of cooler pipeline on-line cleaning device |
| CN110715566A (en) * | 2019-10-28 | 2020-01-21 | 珠海格力电器股份有限公司 | Shell-and-tube heat exchanger, air conditioning unit and descaling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US3850741A (en) * | 1973-05-23 | 1974-11-26 | Cesco Inc | Method of cleaning heat exchangers |
| CN201497421U (en) * | 2009-08-07 | 2010-06-02 | 自贡东方通用能源有限公司 | Cooler on-road cleaning device |
| CN102252560B (en) * | 2010-05-20 | 2012-09-12 | 中国石油化工股份有限公司 | On-line cleaning method for polyethylene pelletizing plate heat exchanger |
| CN101865630B (en) * | 2010-06-08 | 2012-09-05 | 山东电力研究院 | Method and system for thermally washing pipeline |
| CN202002548U (en) * | 2010-12-22 | 2011-10-05 | 山东华星石油化工集团有限公司 | Circulating water cooler with backwashing function |
| CN202757524U (en) * | 2012-08-31 | 2013-02-27 | 首钢京唐钢铁联合有限责任公司 | Cooling system capable of washing heat exchanger in on-line mode |
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