CN202092510U - Online backflushing device of panel heat exchanger - Google Patents
Online backflushing device of panel heat exchanger Download PDFInfo
- Publication number
- CN202092510U CN202092510U CN2011201569740U CN201120156974U CN202092510U CN 202092510 U CN202092510 U CN 202092510U CN 2011201569740 U CN2011201569740 U CN 2011201569740U CN 201120156974 U CN201120156974 U CN 201120156974U CN 202092510 U CN202092510 U CN 202092510U
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- China
- Prior art keywords
- cooling water
- heat exchanger
- water inlet
- backwash
- valve
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- Expired - Fee Related
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to an online backflushing device of a panel heat exchanger, which is reasonable in structure, flexible in operation and small in investment. The online backflushing device comprises the panel heat exchanger. The panel heat exchanger is connected with a cooling water inlet pipeline and a cooling water backwater pipeline. A cooling water inlet operating valve is arranged on the cooling water inlet pipeline, and the cooling water inlet pipeline is further connected with a backflushing drainage pipeline. A backflushing operating valve is arranged on the backflushing drainage pipeline. At least one pressure gauge and at least one pressure transmitter are arranged on the cooling water backwater pipeline and the cooling water inlet pipeline respectively.
Description
Technical field
The utility model relates to a kind of panel type heat exchanger online backflushing cleaning device.
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.
The utility model content
The purpose of this utility model provides a kind of panel type heat exchanger online backflushing cleaning device 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 is connected with a backwash discharge pipe line, is provided with the backwash operation valve on the backwash discharge pipe line; 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 utility model 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 utility model.
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
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
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 (2)
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 is connected with a backwash discharge pipe line, is provided with the backwash operation valve on the backwash discharge pipe line; 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201569740U CN202092510U (en) | 2011-05-17 | 2011-05-17 | Online backflushing device of panel heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201569740U CN202092510U (en) | 2011-05-17 | 2011-05-17 | Online backflushing device of panel heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092510U true CN202092510U (en) | 2011-12-28 |
Family
ID=45367572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201569740U Expired - Fee Related CN202092510U (en) | 2011-05-17 | 2011-05-17 | Online backflushing device of panel heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221305A (en) * | 2011-05-17 | 2011-10-19 | 山东中实易通集团有限公司 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
-
2011
- 2011-05-17 CN CN2011201569740U patent/CN202092510U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221305A (en) * | 2011-05-17 | 2011-10-19 | 山东中实易通集团有限公司 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
| CN102221305B (en) * | 2011-05-17 | 2013-03-27 | 山东中实易通集团有限公司 | On-line back flushing device of panel-type heat exchanger and flushing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20150517 |
|
| EXPY | Termination of patent right or utility model |