CN102252547A - Online maintenance and overhaul method of mobile device capable of substituting operation of heat exchanger - Google Patents
Online maintenance and overhaul method of mobile device capable of substituting operation of heat exchanger Download PDFInfo
- Publication number
- CN102252547A CN102252547A CN 201110095182 CN201110095182A CN102252547A CN 102252547 A CN102252547 A CN 102252547A CN 201110095182 CN201110095182 CN 201110095182 CN 201110095182 A CN201110095182 A CN 201110095182A CN 102252547 A CN102252547 A CN 102252547A
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- heat exchanger
- heat
- water
- mobile hot
- mobile
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- 238000012423 maintenance Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000002955 isolation Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Abstract
The invention relates to an online maintenance and overhaul method of a mobile device capable of substituting the operation of a heat exchanger. A mobile heat-exchange device with equal or slightly higher heat-exchange capability than that of an online operating heat exchanger is adopted and is installed on a freely movable workbench; and a make-up water opening is arranged on a water pipeline inside the mobile heat-exchange device, an exhaust opening is arranged at the top of an outlet side, and the online operating heat exchanger is isolated from a system and substituted to be overhauled in an isolated way. By utilizing the mobile heat-exchange device provided by the invention, the maintenance and overhaul of the heat exchanger can be smoothly completed without the need of disabling main electrical equipment; and the method has the advantages of high rate of return on investment, low overhaul risk, zero discharge during overhaul process and the like. The mobile heat-exchange device provided by the invention can be widely applied to the overhaul of a series of water-to-water cooling heat exchangers of high-power rectifier units in the power supply and non-ferrous metal smelting industries, as well as the corresponding heat-exchange equipment on other large-sized corollary equipment required to be frequently overhauled, and production process equipment demanding high requirement on continuous operating time per set of heat-exchange equipment.
Description
Technical field
The present invention relates to a kind of maintenance, maintaining method of online displacement water to water heat exchanger, be specially adapted to supporting trouble hunting and the periodic maintenance when moving continuously of many electrical equipments with the cooling water-water heat exchanger.
Background technology
The heat-exchange device that electric power rectifier device cooling system is commonly used, general water-the water cooling mode that adopts, promptly secondary side (inboard) " deionized water " passes to primary side (outside) " industry water " to the heat that electric equipment operation produced by heat exchanger and distributes.The operation electrical equipment of persistent fever requires the operation continuously of supporting cooling device, and heat exchanger is no less than 2 times the schedule maintenance frequency general every year.Burst maintenance such as obstruction, infiltration appear because of a variety of causes causes heat-exchange apparatus, can cause the main flow electrical equipment malfunction to be stopped transport, cause the main flow electrical equipment time out of service for fear of electrical equipment accident and minimizing heat exchanger fails, the user takes following two kinds of methods more at present:
One, increases the scheduled overhaul frequency of heat exchanger, thereby reduce equipment failure rate.
Two, every electrical equipment cooling device is installed two groups of heat exchangers, and is standby each other, do not influence the main equipment operation during repair and maintenance.
The shortcoming that first method exists is:
1. corresponding electric main equipment must be out of service during the heat exchanger scheduled overhaul, and the scheduled overhaul of high frequency time impacts the continuous operation of electrical equipment, increases to ordinary production when resting platform to affect greatly.
2. to bleed off a large amount of deionized waters during the heat exchanger Maintenance and Repair, shorten resin service life, also increase maintenance cost and operating cost.
When 3. organizing the electrical equipment paired running, one group of equipment interruption maintenance has increased the operation risk of other units more, and particularly the heated term in sweltering heat is particularly nervous.
The shortcoming that second method exists is:
1. investment cost increases, heat-exchange apparatus vacancy rate height.
2. equipment is installed and is taken than large space.
Summary of the invention
The objective of the invention is to design one can online alternative mobile hot switch, switches to substitute former heat exchanger operation, and the main electrical equipment that need not to stop using just can be finished the maintenance of fixed in place installation heat exchanger smoothly.
The technical solution used in the present invention is:
Adopt heat-exchange capacity quite or a little more than the mobile hot switch of on-line operation heat exchanger, be installed on the workbench that can move freely, its inner conduit road is provided with the additional mouth of a river, the outlet side top is provided with exhaust outlet, the heat exchanger of on-line operation is replaced out from system's isolation, the heat exchanger of on-line operation is isolated maintenance.
On-line operation heat exchanger secondary water lines both sides respectively are provided with 1 and reserve the band valve interface, are used for mobile hot switch secondary water lines and connect; One time water trunk line both sides are provided with corresponding reservation band valve interface simultaneously, are used for being connected with water lines of mobile hot switch.
Flexible and the clamping and positioning device with lock of movable workbench.
Water inlet pipe and water outlet pipe all adopts flexible pipe to connect.
The mobile hot switch has whole removable and alternative features.
Good effect of the present invention:
The present invention mainly is the corresponding main electrical equipment problem of must stopping using when solving the maintenance heat exchanger, adopt mobile hot switch of the present invention, can online switching substitute former heat exchanger operation, the main electrical equipment that need not to stop using just can be finished the maintenance of fixed in place installation heat exchanger smoothly, have reduced investment, safe and reliable, overhaul efficiency is high, do not influence the characteristics of main electrical equipment running rate.
Major advantage of the present invention:
1. investment is saved.Multiple devices simultaneously during paired running advantage more outstanding, only need at ordinary times to be equipped with a mobile hot switch as using in emergent and the maintenance process, need not morely a cover to be installed or to be laid in too much heat-exchange device spare part, investment is saved.
2. main equipment running rate height, produce ensure more favourable.Because of need not to have a power failure the maintenance of the online switching that just can finish heat-exchange apparatus and off-line, can effectively improve the main equipment utilization rate, the influence that when reducing in the maintenance process other similar master-failure production is caused reduces the Maintenance and Repair risk, produces guarantee reliability height.
3. handling safety is convenient to use.Reserve valve interface, valve switches and go dried up additional and pipeline exhaust on a small quantity because of only connecting before and after the maintenance, saved main electrical equipment and stopped transmission process, electrical equipment stops sending electric operational risk significantly to reduce, and handling safety is convenient to use.
4. overhaul efficiency height, recondition expense further reduces.Because of need not discharging and changing water in the main equipment cooling water pipe, only need in the mobile hot switch, to replenish small amount of deionized water, the maintenance process water consumption can significantly reduce, can reduce because of pipeline changes the repair time that water causes and prolong and the recondition expense increase, can further improve overhaul efficiency and reduce maintenance cost, realize " zero-emission " of deionized water in the maintenance process.
Description of drawings
Further specify technical characterstic and the method for replacing in actual service work process that substitutes the formula heat-exchange device that move of the present invention below in conjunction with drawings and Examples.
Fig. 1 is a cooling system schematic diagram commonly used.
Fig. 2 is mobile heat-exchange device major technique structural representation.
Fig. 3 is the on-the-spot displacement of a mobile hot switch schematic diagram.
Among the figure: 1. electrical equipment, 2. line heat exchanger, 3. resin container, 4. subsidiary water tank, 5. mobile hot switch fin, water tube hose interface of 6.9., 7. air bleeding valve, 8.10. secondary water tube hose interface, 11. secondary water water injection valves, 12. dolly, 13. universal wheel, 14. locking buckles, 15. mobile hot switches, Q1.Q2.Q 3.Q4. increases the secondary penstock newly, and Z3.Z4. increases a penstock newly.
The specific embodiment
At first in electrical equipment traditional water-water cooling system pipeline, increase by four secondary water route valve Q1 are set, Q2, Q3, Q4 and two water route valve Z3, Z4, when line heat exchanger 2 needs maintenance, mobile hot switch 15 is moved to the scene, with the industrial soft water band with Q3 and interface 8, Q4 and interface 10, Z3 and interface 9, Z4 is connected with interface 6, the mobile hot switch replaces line heat exchanger to devote oneself to work, electrical equipment need not have a power failure out of service, overhaul line heat exchanger this moment, the end-of-job recession removes above connection, recovers the former method of operation of water-water cooling system.
Below introduce the concrete operations step of maintenance process in detail:
The first step: be ready to move alternative formula heat-exchange device, in place in the maintenance position.
Second step: respectively Q3 and interface 8, Q4 and interface 10, Z3 and interface 9, Z4 and interface 6 correspondences are connected with clean industrial soft water band.
The 3rd step: by secondary water water injection valve 11, air bleeding valve 7, will move and substitute the formula heat-exchange device and fill with deionized water, to avoid water pressure fluctuations when the access device pipeline.
The 4th step: open Z3, Z4 valve, connect primary side recirculated water.
The 5th step: open Q3, Q4 valve, connect secondary side recirculated water, move alternative formula heat-exchange device and incorporate work into.
The 6th step: successively close Q1, Q2, Z1, Z2 valve, the heat exchanger of on-line operation is isolated from system, finish displacement for the first time.
The 7th step: the heat exchanger to on-line operation is isolated maintenance.
The 8th step: successively open Z1, Z2, Q1, Q2 valve, check that the heat exchanger of on-line operation is working properly.
The 9th step: successively close Q3, Q4, Z3, Z4 valve, withdraw to move substituting the formula heat-exchange device, cooling system recovers normal operating mode.
The tenth step: will move alternative formula heat-exchange device and keep properly standby.
The scope of application of the present invention:
1. can be widely used in powering and the operation and the maintenance of the high-power serial Rectification Power Factor water one water cooling heat exchanger of nonferrous smelting industry;
2. being applicable to needs on other large-scale corollary equipment frequently to overhaul corresponding heat-exchange apparatus, and on the heat exchanging equipment technological process of production of having relatively high expectations when moving platform continuously.
Claims (5)
1. a mobile hot interchanger substitutes running gear on-line maintenance repair method, it is characterized in that: adopt heat-exchange capacity quite or a little more than the mobile hot switch of on-line operation heat exchanger, be installed on the workbench that can move freely, its inner conduit road is provided with the additional mouth of a river, the outlet side top is provided with exhaust outlet, the heat exchanger of on-line operation is replaced out from system's isolation, the heat exchanger of on-line operation is isolated maintenance.
2. mobile hot interchanger according to claim 1 substitutes running gear on-line maintenance repair method, it is characterized in that: on-line operation heat exchanger secondary water lines both sides respectively are provided with 1 and reserve the band valve interface, are used for mobile hot switch secondary water lines and connect; One time water trunk line both sides are provided with corresponding reservation band valve interface simultaneously, are used for being connected with water lines of mobile hot switch.
3. mobile hot interchanger according to claim 1 substitutes running gear on-line maintenance repair method, it is characterized in that: the flexible and clamping and positioning device with lock of movable workbench.
4. mobile hot interchanger according to claim 1 substitutes running gear on-line maintenance repair method, it is characterized in that: water inlet pipe and water outlet pipe all adopts flexible pipe to connect.
5. mobile hot interchanger according to claim 1 substitutes running gear on-line maintenance repair method, it is characterized in that: the mobile hot switch has whole removable and alternative features.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110095182 CN102252547A (en) | 2011-04-15 | 2011-04-15 | Online maintenance and overhaul method of mobile device capable of substituting operation of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110095182 CN102252547A (en) | 2011-04-15 | 2011-04-15 | Online maintenance and overhaul method of mobile device capable of substituting operation of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102252547A true CN102252547A (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201110095182 Pending CN102252547A (en) | 2011-04-15 | 2011-04-15 | Online maintenance and overhaul method of mobile device capable of substituting operation of heat exchanger |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797640Y (en) * | 2005-04-27 | 2006-07-19 | 扬中市华能电力设备有限公司 | Closed circulation water cooling equipment |
| US20080127662A1 (en) * | 2006-06-19 | 2008-06-05 | Stanfield Michael E | Method, System, and Apparatus for Modular Central Plant |
| CN201348139Y (en) * | 2009-01-07 | 2009-11-18 | 永城科源电子铝箔有限公司 | Cooling water backup pipeline system |
| CN101800085A (en) * | 2009-02-11 | 2010-08-11 | 中国核电工程有限公司 | Auxiliary water supply system used for nuclear power station single reactor and actuating safety function |
-
2011
- 2011-04-15 CN CN 201110095182 patent/CN102252547A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2797640Y (en) * | 2005-04-27 | 2006-07-19 | 扬中市华能电力设备有限公司 | Closed circulation water cooling equipment |
| US20080127662A1 (en) * | 2006-06-19 | 2008-06-05 | Stanfield Michael E | Method, System, and Apparatus for Modular Central Plant |
| CN201348139Y (en) * | 2009-01-07 | 2009-11-18 | 永城科源电子铝箔有限公司 | Cooling water backup pipeline system |
| CN101800085A (en) * | 2009-02-11 | 2010-08-11 | 中国核电工程有限公司 | Auxiliary water supply system used for nuclear power station single reactor and actuating safety function |
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Application publication date: 20111123 |