CN102221305A - On-line back flushing device of panel-type heat exchanger and flushing method thereof - Google Patents
On-line back flushing device of panel-type heat exchanger and flushing method thereof Download PDFInfo
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- CN102221305A CN102221305A CN2011101267618A CN201110126761A CN102221305A CN 102221305 A CN102221305 A CN 102221305A CN 2011101267618 A CN2011101267618 A CN 2011101267618A CN 201110126761 A CN201110126761 A CN 201110126761A CN 102221305 A CN102221305 A CN 102221305A
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Abstract
The invention relates to an on-line back flushing device of a panel-type heat exchanger and a flushing method thereof. The device has a reasonable structure, is flexible to operate and has less investment, and comprises a panel-type heat exchanger; the panel-type heat exchanger is connected with a cooling water inlet pipeline and a cooling water return pipeline; the cooling water inlet pipeline is provided with a cooling water inlet operating valve, and is also provided with a back flush drain pipeline; the back flush drain pipeline is provided with a back flush operating valve; the cooling water return pipeline and the cooling water inlet pipeline are also respectively provided with at least one pressure gauge and at least one pressure transmitter.
Description
Technical field
The present invention relates to a kind of panel type heat exchanger online backflushing cleaning device and purging method thereof.
Background technology
Water is as the panel type heat exchanger of cooling medium, it is the heat transmission equipment of power plant extensive use, this type of heat exchanger does not often design back purge system, along with system's long-time running, quality of cooling water is variation gradually, often cause that the heat exchanger cooling water side stops up, the heat exchange effect worsens, the medium temperature that is cooled rises rapidly, is forced to stop equipment operations such as electrically driven feed pump, washes or clear up heat exchanger subsequently, could recover heat exchanger behind the end-of-job for clearance, equipment is put into operation, such processing mode work of treatment amount on the one hand is very big again, on the other hand owing to needing outaged equipment to cause economic loss; When heat exchanger stops up when serious even also can cause fatefulue injury accident such as running device bearing shell fusion to take place.
Summary of the invention
Purpose of the present invention provides a kind of panel type heat exchanger online backflushing cleaning device and purging method thereof exactly for addressing the above problem, and it is rational in infrastructure, and flexible operation is invested less.
For achieving the above object, the utility model adopts following technical scheme:
A kind of panel type heat exchanger online backflushing cleaning device, it comprises the panel type heat exchanger, the panel type heat exchanger is connected with the CWR road with the cooling water inlet pipe road, on the cooling water inlet pipe road, be provided with cooling water water inlet operation valve, the cooling water inlet pipe road also with a backwash discharge pipe line, on the backwash discharge pipe line, be provided with the backwash operation valve; On on the CWR road and cooling water inlet pipe road, also be respectively equipped with at least one Pressure gauge and at least one pressure transmitter.
Described CWR road is divided into the pipeline of two parallel connections, wherein a pipeline is provided with cooling water backwater bypass operation valve, and another pipeline is provided with successively the isolating valve behind isolating valve, cooling water backwater control valve and the cooling water backwater control valve before the cooling water backwater control valve that connects.
A kind of panel type heat exchanger online backflushing cleaning device, its step is:
(1) in a single day finds that panel type heat exchanger heat exchange effect worsens, at first reduce running device and exert oneself, prepare to carry out backwash operation;
(2) open cooling water backwater bypass operation valve, standard-sized sheet cooling water backwater control valve strengthens the cooling water circling water flow rate that is used for backwash;
(3) open the backwash operation valve, close cooling water water inlet operation valve simultaneously, backwash operation begins to put into operation;
(4) according to cooling water advance, backwater pressure reduction numerical value determines backwashing time, along with backwash is carried out, this pressure reduction will reduce and tend towards stability gradually, treats that differential pressure can stop backwash after stable;
When (5) needing to finish backwash, open cooling water water inlet operation valve earlier, close the backwash operation valve simultaneously, and then close cooling water backwater bypass operation valve, and cooling water backwater control valve driveed to the appropriate location, again exerting oneself of running device is adjusted to normal operating condition as required, online backflushing is washed EO;
(6) during backwash is carried out, constantly monitor the panel type heat exchanger cooling effect of panel type heat exchanger, in case finding panel type heat exchanger exit oil temperature rises rapidly, the cooling effect that be described this moment runs down, and the operation of serious threat running device, should take to continue to reduce running device and exert oneself the measure of the equipment that perhaps shuts down operation, after EO subject to backwash and the recovery, again equipment is resumed operation.
Advantage of the present invention is as follows: (1) is design one tunnel backwash drainage pipeline between heat exchanger cooling water water inlet operation valve and heat exchanger, and this discharge outlet inserted not have press waterpipe, such design helps reducing the backwash resistance of water drainage, strengthens the effect of heat exchanger backwash; (2) operation valve of design on the backwash discharge pipe line, this valve was in closed condition when heat exchanger normally moved, and opened this operation valve during backwash; (3) on cooling water water inlet and water return pipeline, 1 Pressure gauge and 1 pressure transmitter are installed respectively, by a distant place or local operation related valve, realize online backwash, heat exchanger still has certain cooling effect in the backwash process, the equipment so needn't shut down, thus economic loss can be reduced; (4) to the transformation of original panel type heat exchanger with this back purge system is installed, method is simple, and flexible operation, practicality are invested less; (5) this back-flushing method and device first Application are in certain power plant, and effect is very good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Wherein, 1. valve is operated in the cooling water water inlet; 2. cooling water backwater bypass operation valve; 3. the isolating valve before the cooling water backwater control valve; 4. cooling water backwater control valve; 5. the isolating valve behind the cooling water backwater control valve; 6. backwash operation valve, 7. panel type heat exchanger.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
Among Fig. 1, a kind of panel type heat exchanger online backflushing cleaning device, it comprises panel type heat exchanger 7, panel type heat exchanger 7 is connected with the CWR road with the cooling water inlet pipe road, on the cooling water inlet pipe road, also be provided with a backwash discharge pipe line, on the backwash discharge pipe line, be provided with backwash operation valve 6; On on the CWR road and cooling water inlet pipe road, also be respectively equipped with at least one Pressure gauge and at least one pressure transmitter.The cooling water inlet pipe road is provided with cooling water water inlet operation valve 1.
Described CWR road is divided into the pipeline of two parallel connections, wherein a pipeline is provided with cooling water backwater bypass operation valve 2, and another pipeline is provided with successively the isolating valve 5 behind isolating valve 3, cooling water backwater control valve 4 and the cooling water backwater control valve before the cooling water backwater control valve that connects.
A kind of panel type heat exchanger online backflushing cleaning device, its step is:
(1) in a single day finds that panel type heat exchanger heat exchange effect worsens, at first reduce running device and exert oneself, prepare to carry out backwash operation;
(2) open cooling water backwater bypass operation valve 2 standard-sized sheet cooling water backwater control valves 4 and strengthen the cooling water circling water flow rate that is used for backwash;
(3) opening backwash operation valve 6 closes cooling water water inlet operation valve 1 backwash operation simultaneously and begins to put into operation;
(4) according to cooling water advance, backwater pressure reduction numerical value determines backwashing time, along with backwash is carried out, this pressure reduction will reduce and tend towards stability gradually, treats that differential pressure can stop backwash after stable;
When (5) needing to finish backwash, open earlier cooling water water inlet operation valve 1 close backwash operation valve 6 simultaneously and then close cooling water backwater bypass operation valve 2 and with cooling water backwater control valve 4 to the appropriate location, again exerting oneself of running device is adjusted to normal operating condition as required, online backflushing is washed EO;
(6) during backwash is carried out, constantly monitor panel type heat exchanger 7 oily device cooling effects, in case finding panel type heat exchanger exit oil temperature rises rapidly, the cooling effect that be described this moment runs down, and the operation of serious threat running device, should take to continue to reduce running device and exert oneself the measure of the equipment that perhaps shuts down operation, after EO subject to backwash and the recovery, again equipment is resumed operation.
Claims (3)
1. panel type heat exchanger online backflushing cleaning device, it comprises the panel type heat exchanger, the panel type heat exchanger is connected with the CWR road with the cooling water inlet pipe road, on the cooling water inlet pipe road, be provided with cooling water water inlet operation valve, it is characterized in that, the cooling water inlet pipe road also with a backwash discharge pipe line, on the backwash discharge pipe line, be provided with the backwash operation valve; On on the CWR road and cooling water inlet pipe road, also be respectively equipped with at least one Pressure gauge and at least one pressure transmitter.
2. panel type heat exchanger online backflushing cleaning device as claimed in claim 1, it is characterized in that, described CWR road is divided into the pipeline of two parallel connections, wherein a pipeline is provided with cooling water backwater bypass operation valve, and another pipeline is provided with successively the isolating valve behind isolating valve, cooling water backwater control valve and the cooling water backwater control valve before the cooling water backwater control valve that connects.
3. one kind is adopted the described panel type heat exchanger of claim 1 online backflushing cleaning device, it is characterized in that its step is:
(1) in a single day finds that panel type heat exchanger heat exchange effect worsens, at first reduce running device and exert oneself, prepare to carry out backwash operation;
(2) open cooling water backwater bypass operation valve, standard-sized sheet cooling water backwater control valve strengthens the cooling water circling water flow rate that is used for backwash;
(3) open the backwash operation valve, close cooling water water inlet operation valve simultaneously, backwash operation begins to put into operation;
(4) according to cooling water advance, backwater pressure reduction numerical value determines backwashing time, along with backwash is carried out, this pressure reduction will reduce and tend towards stability gradually, treats that differential pressure can stop backwash after stable;
When (5) needing to finish backwash, open cooling water water inlet operation valve earlier, close the backwash operation valve simultaneously, and then close cooling water backwater bypass operation valve, and cooling water backwater control valve driveed to the appropriate location, again exerting oneself of running device is adjusted to normal operating condition as required, online backflushing is washed EO;
(6) during backwash is carried out, constantly monitor the panel type heat exchanger cooling effect of panel type heat exchanger, in case finding panel type heat exchanger exit oil temperature rises rapidly, the cooling effect that be described this moment runs down, and the operation of serious threat running device, should take to continue to reduce running device and exert oneself the measure of the equipment that perhaps shuts down operation, after EO subject to backwash and the recovery, again equipment is resumed operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110126761 CN102221305B (en) | 2011-05-17 | 2011-05-17 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110126761 CN102221305B (en) | 2011-05-17 | 2011-05-17 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102221305A true CN102221305A (en) | 2011-10-19 |
| CN102221305B CN102221305B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110126761 Expired - Fee Related CN102221305B (en) | 2011-05-17 | 2011-05-17 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
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| CN (1) | CN102221305B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315920A (en) * | 2014-09-29 | 2015-01-28 | 神华集团有限责任公司 | Method for cleaning plate heat exchanger and plate heat exchanger adopting method |
| CN107300339A (en) * | 2017-07-31 | 2017-10-27 | 湖南军信环保股份有限公司 | The full-automatic online backflushing cleaning device of MBR plate type heat exchangers and purging method |
| CN112554967A (en) * | 2020-12-07 | 2021-03-26 | 江苏南通发电有限公司 | Operation optimization method under limited plate number of closed coolers |
| CN113324696A (en) * | 2021-06-22 | 2021-08-31 | 中国核动力研究设计院 | Back-flushing isolation device of nuclear reactor differential pressure and pressure transmitter and maintenance method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275871A (en) * | 1988-09-09 | 1990-03-15 | Toshiba Corp | Cooling water supplying apparatus |
| JPH07305997A (en) * | 1994-05-10 | 1995-11-21 | Hitachi Ltd | Cooling system equipment |
| CN1271847A (en) * | 2000-04-26 | 2000-11-01 | 巴陵石化鹰山石油化工厂 | Industrial air conditioner on-line cleaning method |
| CN201463410U (en) * | 2009-08-28 | 2010-05-12 | 机械工业第三设计研究院 | Water source side device for flowing water source heat pumps |
| CN201476684U (en) * | 2009-09-15 | 2010-05-19 | 鞍钢股份有限公司 | Online cleaning system for heat exchanger of continuous annealing furnace |
| CN201589576U (en) * | 2010-01-15 | 2010-09-22 | 浙江日风电气有限公司 | Back-washing system of plate type heat exchanger |
| CN201607162U (en) * | 2009-12-17 | 2010-10-13 | 山东省鲁洲食品集团有限公司 | Plate-type heat exchanger device capable of automatically reversely washing on line |
| CN201811646U (en) * | 2010-09-10 | 2011-04-27 | 中国石油化工股份有限公司 | Backwashing device for circulating water heat exchanger |
| CN202092510U (en) * | 2011-05-17 | 2011-12-28 | 山东中实易通集团有限公司 | Online backflushing device of panel heat exchanger |
-
2011
- 2011-05-17 CN CN 201110126761 patent/CN102221305B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275871A (en) * | 1988-09-09 | 1990-03-15 | Toshiba Corp | Cooling water supplying apparatus |
| JPH07305997A (en) * | 1994-05-10 | 1995-11-21 | Hitachi Ltd | Cooling system equipment |
| CN1271847A (en) * | 2000-04-26 | 2000-11-01 | 巴陵石化鹰山石油化工厂 | Industrial air conditioner on-line cleaning method |
| CN201463410U (en) * | 2009-08-28 | 2010-05-12 | 机械工业第三设计研究院 | Water source side device for flowing water source heat pumps |
| CN201476684U (en) * | 2009-09-15 | 2010-05-19 | 鞍钢股份有限公司 | Online cleaning system for heat exchanger of continuous annealing furnace |
| CN201607162U (en) * | 2009-12-17 | 2010-10-13 | 山东省鲁洲食品集团有限公司 | Plate-type heat exchanger device capable of automatically reversely washing on line |
| CN201589576U (en) * | 2010-01-15 | 2010-09-22 | 浙江日风电气有限公司 | Back-washing system of plate type heat exchanger |
| CN201811646U (en) * | 2010-09-10 | 2011-04-27 | 中国石油化工股份有限公司 | Backwashing device for circulating water heat exchanger |
| CN202092510U (en) * | 2011-05-17 | 2011-12-28 | 山东中实易通集团有限公司 | Online backflushing device of panel heat exchanger |
Non-Patent Citations (2)
| Title |
|---|
| 乔志清等: "冷油器、空冷器加设反冲洗装置", 《黑龙江电力技术》 * |
| 陈钢: "板式换热器的反冲洗排污", 《机电工程技术》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315920A (en) * | 2014-09-29 | 2015-01-28 | 神华集团有限责任公司 | Method for cleaning plate heat exchanger and plate heat exchanger adopting method |
| CN107300339A (en) * | 2017-07-31 | 2017-10-27 | 湖南军信环保股份有限公司 | The full-automatic online backflushing cleaning device of MBR plate type heat exchangers and purging method |
| CN112554967A (en) * | 2020-12-07 | 2021-03-26 | 江苏南通发电有限公司 | Operation optimization method under limited plate number of closed coolers |
| CN113324696A (en) * | 2021-06-22 | 2021-08-31 | 中国核动力研究设计院 | Back-flushing isolation device of nuclear reactor differential pressure and pressure transmitter and maintenance method |
| CN113324696B (en) * | 2021-06-22 | 2022-03-18 | 中国核动力研究设计院 | Method for maintaining back-flushing isolation device of nuclear reactor differential pressure and pressure transmitter |
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| Publication number | Publication date |
|---|---|
| CN102221305B (en) | 2013-03-27 |
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