CN107389274A - A kind of online automatic leak detection apparatus for examination and repair of heat exchanger - Google Patents
A kind of online automatic leak detection apparatus for examination and repair of heat exchanger Download PDFInfo
- Publication number
- CN107389274A CN107389274A CN201710814425.XA CN201710814425A CN107389274A CN 107389274 A CN107389274 A CN 107389274A CN 201710814425 A CN201710814425 A CN 201710814425A CN 107389274 A CN107389274 A CN 107389274A
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- Prior art keywords
- heat exchanger
- leak detection
- repair
- examination
- detection apparatus
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of heat exchanger online automatic leak detection apparatus for examination and repair, including distribute module, confluence module, module to be provided with xegregating unit.Automation leak detection apparatus for examination and repair is connected with the heat exchanger tube row of heat exchanger, can isolate all devices according to setting program and connect heat exchanger tube row, can also isolate single heat exchange tube row.Isolation controlling organization can access control system and be used to open and close each corresponding path of pipe row.The present invention proposes a kind of new heat exchanger with online automatic leak detection apparatus for examination and repair, after being mounted with device proposed by the present invention, heat exchanger can by program, gradually isolation module or monodromy heat pipe be arranged by row in the process of running, and necessary data is recorded by control system, realize automatic Macro or mass analysis in real time, when data analysis exception, system can send alarm and automatically determine processing scheme, cut-off leakage pipeline, ensure equipment normal operation, so as to realize full-automatic leak detection repair process, Human disturbance is reduced, is advantageous to improve equipment service life and efficiency.
Description
Technical field
The present invention relates to technical field of heat exchange such as electric power, environmental protection, chemical industry, the energy, in particular it relates to which a kind of heat exchanger is used in
Line automatic leak detection apparatus for examination and repair.
Background technology
For environmental protection, meet the discharge standard requirement of country, thermal power plant is in dry electric precipitation device or desulfurizing tower
Preceding setting GGH or low-level (stack-gas) economizer, with Mist heat recovering, dust collector efficiency is improved, reaches the purpose of energy-conserving and environment-protective.In recent years
Come domestic power plant and utilize water --- flue gas heat-exchange unit extensively, it is heat exchange module (by changing that the principal mode of heat exchanger is most of
Heat pipe, housing composition) and header, external pipe assemble to form the heating agent circulatory system, for utilization space as far as possible, improve heat exchange
Efficiency, heat exchanger tube mainly use spiral fin coil or H type finned tubes, manage and equal S-type dense arrangement, due to work of electric power system
Environment is more severe, and dust content is higher in flue gas, heat exchange element dense arrangement, and heat exchanger tube quantity is in water in terms of 100,000,
Ash, gas intersection temperature change environment in, easily occur abrasion and corrosion and damage, the leakage and maintenance of heat exchanger tube are each heat exchange
The problem that device operation will necessarily run into.Conventional maintenance means are required for implementing after a shutdown, can be direct in maintenance process
What is observed and operate is a small amount of heat exchanger tube on the outside of heat exchange module, if inner tube leaks, needs to remove whole heat exchange
Device shell, cut portion heat exchanger tube are checked that time-consuming, and step is complicated, and manpower consumption is big.Usually connect normally for maintenance is convenient
Pipe row isolates together, and heat exchanging device exchange capability of heat causes largely to waste.This is the long-time failure free operation band of heat exchanger
Very big difficulty is carried out.
Through retrieval, Chinese patent literature CN101408466A (application number 200810174216.4) discloses a kind of detection side
The leakage detection method and device of method and device, particularly shell-and-tube heat exchanger, the detection means include helium mass spectrometer leak detector, true
Empty pump, it is characterised in that air inlet pipe is arranged on airscoop shroud, and airscoop shroud is connected with the sealing of shell-and-tube heat exchanger one end, and hood is close
Envelope is provided with blast pipe, vavuum pump clearance Pipe installing is in shell installed in the other end of shell-and-tube heat exchanger on hood
On the shell of formula heat exchanger, the air inlet of helium mass spectrometer leak detector is connected with vacuum pump outlet.Such as need to utilize this method, then exchange heat
Pipe must have a side opening, it is still desirable to cut off part heat exchanger tube and connecting bend.
Through retrieval, Chinese patent literature CN204388656 U (application number 201420869275.4) disclose a kind of heat exchange
Device, there are some heat exchange layers, each heat exchange layer has some heat exchange modules, and the heat exchange module is arranged including heat exchanger tube, same
Module connecting tube is connected between the adjacent heat exchange module of the heat exchange layer, in addition to is connected to the water inlet of the heat exchanger
Bypass connecting tube between main header and the main header of water outlet, described bypass are provided with interface in connecting tube, pass through the interface and institute
State the connection of module connecting tube；Bypass connecting tube pipeline section corresponding with each heat exchange module, which is provided with, bypasses on-off valve.When
During a certain heat exchange module leak, the leakage module is cut off, each heat exchange layer is not cut off integrally, does not influence other heat exchange moulds
The normal heat exchange of block, and the unbalanced problem of heat exchange caused by overcoming traditional approach, and the loss of heat exchange area is reduced as far as possible.
The loss of hot face can be reduced to single heat exchange module by the patent in maintenance, but can not be accomplished in more efficient Utilizing question module
Normal pipe row.
Through retrieval, Chinese patent literature CN201707932 U (application number 201020212440.0) disclose a kind of heat exchange
Device pipe excretion leak detection clamping coupling device.Including cylinder, cylinder is provided with one end cylinder cap of piston rod and is fixed with sleeve, sleeve
The other end be connected with the end sleeve of bottom lock, multiple conduits are extended in the bottom of end sleeve, end sleeve it is another
Hold end face to be provided with the bellows being fixed on end sleeve, the barrel of end sleeve is provided with leak detection air flue, bellows it is another
One end is provided with static sealing ring, and the draw-bar guide of connection piston rod is provided with sleeve, and the pull bar of conduit, pull bar are provided through on draw-bar guide
Free end be provided with head, dynamic seal ring is provided between head and the free end of conduit.The leak detection means are still for single
Pipe or single row of tubes row, heat exchanger tube need at least one end open.
Therefore in order to solve the above problems, certainly will need a kind of simple and convenient, the change of heat exchanging device is smaller, monitoring in real time and
The automation equipment of leak detection maintenance.The deficiency of summary patent, needed with reference to actual maintenance, coordinate the apparatus for examination and repair of heat exchanger
It must have the characteristics that：
1. the leakage of heat exchanger can be monitored on-line.
2. it can determine that heat exchanger reveals position online.
3. heat exchanging device leak site it can be checked and be isolated online.
The content of the invention
For deficiency of the prior art, it is an object of the invention to provide a kind of device for realizing automation maintenance, one
Body degree is high, without miscellaneous equipment in running and maintenance process, you can single tube row is monitored and checked online
Isolation, overhaul efficiency is greatly improved, shorten the repair time, reduce maintenance workload.
To realize object above, the present invention provides a kind of heat exchanger for realizing automation maintenance leak detection apparatus for examination and repair, bag
Distribute module, confluence module are included, module is provided with xegregating unit.The heat exchanger tube of automation leak detection apparatus for examination and repair and heat exchanger is arranged
It is connected, can isolates all devices according to setting program and connect heat exchanger tube row, single heat exchange tube row can also be isolated.Isolation control
Mechanism processed can access control system and be used to open and close each corresponding path of pipe row.
Preferably, a kind of described heat exchanger with online automatic leak detection apparatus for examination and repair distribute module and confluence module respectively with
Heat exchanger tube row is connected, can be with compounding practice for centralized Control heating agent.
Preferably, a kind of described heat exchanger can be isolated with set xegregating unit in online automatic leak detection apparatus for examination and repair module
All devices connect heat exchanger tube row or any single pipe row.
Preferably, a kind of described heat exchanger can with set isolation controlling organization in online automatic leak detection apparatus for examination and repair module
Access control system is used to open and close each corresponding path of pipe row.
Preferably, the online automatic leak detection apparatus for examination and repair access control system of described a kind of heat exchanger, is grasped online
Make.Different leakage Rule of judgment is combined according to the various floor datas of cumulative record, completes on-line automatic leak detection maintenance.Control
System has self-learning function, can automatically analyze the Monitoring Data diagnosed under various operating conditions and judge, give automatically
Go out processing scheme.
Preferably, a kind of described heat exchanger is welding with online automatic leak detection apparatus for examination and repair body module and xegregating unit
Or design and manufacture are integrally formed, the requirement of heating agent design pressure can be born.
Above-mentioned each preferred feature description can cause this kind to realize the heat exchanger leak detection maintenance dress of automation maintenance
Put and adjust arrangement in the case of varying environment, manufacture requirement and installation requirement, meet practical application.
Compared with prior art, the present invention has following beneficial effect：
Heat exchanger of the present invention is designed with xegregating unit in distribution with online automatic leak detection apparatus for examination and repair with confluence module,
It can isolate all devices according to setting program and connect heat exchanger tube row, single heat exchange tube row can also be isolated.
Common heat exchanger is after checking module heat exchanger tube and having leakage, it is necessary to close outside corresponding to inlet and outlet header
Pipe path, after equipment is out of service by water or gas be used as medium exchange heat pipe checked, if blow-by tube be in hardly possible
With the module inner side observed directly, it is also necessary to remove housing, cut off the connecting portion of header and heat exchanger tube, to connection after inspection
Position is recovered, and is related to largely cutting, welding job, set valve instrument on the spot heat exchanger be also required to manual site by
Individual valve instrument carries out operational observations, and to personnel, time and construction quality have certain requirement.
Using the present invention, automation leak detection apparatus for examination and repair is connected with the heat exchanger tube row of heat exchanger, can according to setting program,
Isolate any heat exchanger tube row.After the device access control system, it can be combined not according to the various floor datas of cumulative record
Same leakage Rule of judgment, complete on-line automatic leak detection maintenance.Control system has self-learning function, can automatically analyze diagnosis
Monitoring Data under various operating conditions simultaneously judges, and provides processing scheme automatically.By the service work of heat exchanger from artificial
Stage, which checks, is changed into real-time intelligentization monitoring and analysis, not only greatlys save time and manpower that heat exchanger maintenance is brought
Material resources consume, and the long-term normal table operation of heat exchanging device also functions to whole guaranteeing role.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the front view of the on-line automatic leak detection apparatus for examination and repair of one embodiment of the invention；
Fig. 2 is the left view of the on-line automatic leak detection apparatus for examination and repair of one embodiment of the invention；
In figure：1 is distribution/confluence module, and 2 be xegregating unit mechanism, and 3 be to distribute/conflux branch pipe.
Fig. 3 is to overhaul functional diagram with the supporting on-line automatic leak detection of the present apparatus.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
As shown in Figure 1 and Figure 2, the online automatic leak detection apparatus for examination and repair of a kind of heat exchanger.Sequence number 1 is distribution/confluence module,
Sequence number 2 is xegregating unit mechanism, and sequence number 3 is to distribute/conflux branch pipe.
In the preferred embodiment of part：
The branch pipe 3 that confluxes is connected for distribution/confluence module 1 and heat exchanger tube row are by distributing/, on device body integrated design have
Xegregating unit mechanism 2, connect heat exchanger tube row available for all devices are isolated, single heat exchange tube row can also be isolated.
Conflux branch pipe 3 for distribution/confluence module 1 distributes with each/, and welding is in xegregating unit mechanism 2 or is integrally formed design system
Make, the requirement of heating agent design pressure can be born.
In operation or maintenance process, pass through parameter index (such as heating agent water, flow velocity, the pressure of the monitoring of system first
Deng) according to the various floor datas of cumulative record combine different leakage Rule of judgment, judge the heat exchanger tube row that leakage be present, it is complete
Into on-line automatic leak detection maintenance.Control system has self-learning function, can automatically analyze the prison diagnosed under various operating conditions
Survey data and judge, provide processing scheme automatically.Operation maintenance personnel is verified according to monitoring result.Realize whole heat exchange system
System status monitoring and the automation and intelligentification of maintenance, cause what heat exchanger system interrupted after can heat exchanger tube be gone wrong
Influence is preferably minimized.
In the above-described embodiments, device specification material in itself, the quantity for the heat exchanger tube being connected with device and form are (single
Pipe, biexhaust pipe or even multi coil connect simultaneously), the quantity of xegregating unit, position and form, all in accordance with practical application project needs
It is determined that described without prejudice to present disclosure.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (6)
1. a kind of heat exchanger is set with online automatic leak detection apparatus for examination and repair, including distribute module, confluence module, module provided with isolation
Standby, automation leak detection apparatus for examination and repair is connected with the heat exchanger tube row of heat exchanger, can isolate all device institutes according to setting program
Even heat exchanger tube row, can also isolate single heat exchange tube row, and isolation controlling organization can access control system and be used to open and close each pipe row couple
Answer path, it is characterised in that：Device is connected with heat exchanger tube row, and distribution and confluence module are provided with xegregating unit, and xegregating unit can
For isolating the heat exchanger tube being arbitrarily connected row, device access control system can carry out on-line operation, according to each of cumulative record
Kind floor data combines different leakage Rule of judgment, completes on-line automatic leak detection maintenance function.
A kind of 2. online automatic leak detection apparatus for examination and repair of heat exchanger according to claim 1, it is characterised in that distribute module
It is connected respectively with heat exchanger tube row with confluence module, can be with compounding practice for centralized Control heating agent.
A kind of 3. online automatic leak detection apparatus for examination and repair of heat exchanger according to claim 1, it is characterised in that the device mould
Set xegregating unit can isolate all devices and connect heat exchanger tube row or any single pipe row on block.
A kind of 4. online automatic leak detection apparatus for examination and repair of heat exchanger according to claim 1, it is characterised in that the device mould
Set isolation controlling organization can access control system and be used to open and close each corresponding path of pipe row on block.
5. the online automatic leak detection apparatus for examination and repair of a kind of heat exchanger according to claim 1, it is characterised in that the device connects
Enter control system, carry out on-line operation.Different leakage Rule of judgment is combined according to the various floor datas of cumulative record, is completed
On-line automatic leak detection maintenance.Control system has self-learning function, can automatically analyze the monitoring diagnosed under various operating conditions
Data simultaneously judge, and provide processing scheme automatically.
A kind of 6. online automatic leak detection apparatus for examination and repair of heat exchanger according to claim 1, it is characterised in that the device sheet
Module for welding or is integrally formed design and manufacture with xegregating unit, can bear the requirement of heating agent design pressure.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814425.XA CN107389274A (en) | 2017-09-11 | 2017-09-11 | A kind of online automatic leak detection apparatus for examination and repair of heat exchanger |
| CN201811039841.8A CN109323828A (en) | 2017-09-11 | 2018-09-06 | A kind of online leak detection apparatus for examination and repair of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710814425.XA CN107389274A (en) | 2017-09-11 | 2017-09-11 | A kind of online automatic leak detection apparatus for examination and repair of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107389274A true CN107389274A (en) | 2017-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710814425.XA Pending CN107389274A (en) | 2017-09-11 | 2017-09-11 | A kind of online automatic leak detection apparatus for examination and repair of heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN107389274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357553A (en) * | 2017-11-26 | 2019-02-19 | 上海电气电站环保工程有限公司 | A kind of pipe heat exchanger of easy access |
| CN109540406A (en) * | 2019-01-10 | 2019-03-29 | 广州灵帕机电科技有限公司 | The automatic creeping helium leak test system of heat exchanger tube and sealing weld seam in heat exchanger tube sheet |
| CN114061865A (en) * | 2020-07-31 | 2022-02-18 | 芜湖美的厨卫电器制造有限公司 | Detection device, heat exchange assembly and detection method |
-
2017
- 2017-09-11 CN CN201710814425.XA patent/CN107389274A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357553A (en) * | 2017-11-26 | 2019-02-19 | 上海电气电站环保工程有限公司 | A kind of pipe heat exchanger of easy access |
| CN109540406A (en) * | 2019-01-10 | 2019-03-29 | 广州灵帕机电科技有限公司 | The automatic creeping helium leak test system of heat exchanger tube and sealing weld seam in heat exchanger tube sheet |
| CN109540406B (en) * | 2019-01-10 | 2024-04-16 | 广州灵帕机电科技有限公司 | Automatic crawling helium leakage detection system for heat exchange tube and sealing weld joint in heat exchanger tube plate |
| CN114061865A (en) * | 2020-07-31 | 2022-02-18 | 芜湖美的厨卫电器制造有限公司 | Detection device, heat exchange assembly and detection method |
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Application publication date: 20171124 |
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