CN202501959U - Detection system of internal leak of heat exchanger - Google Patents
Detection system of internal leak of heat exchanger Download PDFInfo
- Publication number
- CN202501959U CN202501959U CN2012200483183U CN201220048318U CN202501959U CN 202501959 U CN202501959 U CN 202501959U CN 2012200483183 U CN2012200483183 U CN 2012200483183U CN 201220048318 U CN201220048318 U CN 201220048318U CN 202501959 U CN202501959 U CN 202501959U
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- valve
- detection system
- detection
- gas
- heat
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Abstract
The utility model relates to a detection system of internal leak of a heat exchanger. The objective of the detection system is to solve the problems of difficulty, low efficiency and incapability of satisfying needs of industrial production in internal leak detection in devices and methods in the prior art. The detection system is provided with an air inlet port and an air outlet port; a first valve, a buffer tank, a pressure reducing valve, a gas tank, a compressor, a second valve, a detection chamber and a third valve are connected successively between the air inlet port and the air outlet port; a probe of a gas detector is arranged inside the detection chamber; and a vent valve and a vacuum pump are arranged on the detection chamber in a communicatable manner. The detection system of the utility model has the advantages of simple structure, easy operation, wide application range, high detection efficiency, capability of satisfying the needs of the industrial production, comprehensive function, economical characteristic and environmental protection.
Description
Technical field
The utility model relates to the online detection instrument technical field of heat-exchanger rig, is specifically related to a kind of heat interchanger internal leakage detection system.
Background technology
All kinds such as that heat-exchanger rig comprises is stacked, parallel flow type, pipe type, their structure is all different, but identical structure is: inside is provided with crooked runner, and cold-producing medium flows along the circuit of setting.In heat-exchanger rig exists during leakage, cold-producing medium can not be fully in internal flow, thereby heat exchanging device heat exchanger effectiveness has very big influence.Leakage is difficult to come to light in producing and installing in the heat-exchanger rig, is under the situation that has seriously influenced heat exchange property, just to come to light mostly, has caused more serious consequence this moment.In order to address this problem, there is the producer of minority to adopt the bench simulation test detection method, in the heat interchanger operational process, determine whether to exist the interior phenomenon of leaking through the temperature difference of measuring the heat interchanger both sides.But this equipment and method also exist weak point:
One, detection is difficult, efficient is low: mainly be used for detecting at present the inner case of laminated evaporator, operating process is complicated, and shows to differentiate whether the internal leakage accuracy is relatively poor through temperature, and detection efficiency is lower.
Two, can't satisfy suitability for industrialized production: because it is longer to detect required time, dissimilar heat interchanger need mate with different systems, is difficult to satisfy complete in batches inspection, also can't carry out online efficient detection.
Summary of the invention
The utility model provides a kind of heat interchanger internal leakage detection system, has difficulty and the problem that can't satisfy suitability for industrialized production of detecting to overcome prior art.
In order to overcome the problem that prior art exists, the technical scheme that the utility model provides is:
A kind of heat interchanger internal leakage detection system; Comprise intake interface and give vent to anger interface; At intake interface with give vent to anger and be connected with first valve, surge tank, reduction valve, gas-holder, compressor, second valve, sensing chamber and the 3rd valve between the interface in turn; The probe of gas detecting instrument is arranged at sensing chamber inside, also is communicated with drain tap and vacuum pump in the sensing chamber.
Compared with prior art, the utility model has the advantages that:
1, simple in structure, implement easily.
2, applied widely: as can to detect the internal leakage situation that comprises multiple heat interchanger such as stacked, parallel flow type, pipe type.
3, detection efficiency is high: can detect as long as the intake interface and the interface of giving vent to anger is connected on the import and export of heat-exchanger rig, an equipment only needs 30 seconds to 1 minute time to detect, and has improved the efficient that detects greatly.
4, can satisfy need of industrial production: the utility model can satisfy the batch of heat interchanger to be examined entirely, can realize online efficient detection simultaneously.
5, complete function: whether exist interior the leakage except that differentiating, also can make accurate evaluation according to the order of severity that the concentration of probe gas in the sensing chamber 7 is internally leaked.
6, economic environmental protection: probe gas can carry out recycling, reduces and detects cost, reduces the pollution to environment.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Description of reference numerals is following:
1-first valve, 2-surge tank, 3-reduction valve, 4-gas-holder, 5-compressor, 6-second valve, 7-sensing chamber, 8-the 3rd valve, 9-drain tap, 10-vacuum pump, 11-gas detecting instrument, 12-heat-exchanger rig.
Embodiment
To combine accompanying drawing that the utility model is at length explained below.
Referring to Fig. 1; A kind of heat interchanger internal leakage detection system; Comprise intake interface and give vent to anger interface; At intake interface with give vent to anger and be connected with first valve 1, surge tank 2, reduction valve 3, gas-holder 4, compressor 5, second valve 6, sensing chamber 7 and the 3rd valve 8 between the interface in turn, the probe of gas detecting instrument 11 is arranged at sensing chamber 7 inside, also is communicated with drain tap 9 and vacuum pump 10 in the sensing chamber 7.
It detects principle: probe gas is at pressure differential △ P=P
2-P
1Effect under, the heat interchanger inside of flowing through, along the flow passage of bending until outlet; When there is internal leakage in heat interchanger; The part runner must be drawn the part probe gas and arrive outlet through bypass path by bypass, exists flow process poor between bypass path and the normal route.Native system distinguishes through this flow process difference of probe gas whether core body exists internal leakage.
During test, the intake interface of the system that the import and export of heat-exchanger rig 12 are provided through quick union and the utility model respectively joins with the interface of giving vent to anger, and after the heat exchanging device vacuumizes, the probe gas of certain pressure is fed heat-exchanger rig from intake interface.Control the 3rd valve 8, make its just at probe gas through normal runner, close when being about to arrive before the sensing chamber 7 (the shut-in time point that can whether report to the police to confirm the 3rd valve 8 according to gas detecting instrument 11); When there is not leakage in heat interchanger inside; Probe gas is through normal flow passage, and the probe gas that at every turn gets in the heat exchanger core body all is certain, and before stopping at sensing chamber 7 just; There is not probe gas to have gas detecting instrument 11 attonitys in the sensing chamber 7.
Exist to leak or during bypass, carry out aforesaid operations when inside, must have the part probe gas " to take a shortcut ", through by the flow passage of bypass, arrive first than normal runner and to reach outlet.When the 3rd valve 8 is closed as usual; Existing part probe gas passes through from the 3rd valve 8, gets into sensing chamber 7, detect probe gas after; Gas detecting instrument 11 is reported to the police; Explain internal leakage has taken place, gas detecting instrument 11 readings are high more, and the heat exchange property influence of expression internal leakage heat exchanging device is big more.
After test was accomplished, the inner probe gas of heat-exchanger rig can reclaim through the compressor 5 and second valve 6, pulls out quick union after the completion.Total test process is divided into and connects quick union, vacuumizes, detects, reclaims, pulls out quick union five steps completion.
Claims (1)
1. a heat interchanger internal leakage detection system comprises intake interface and gives vent to anger interface, it is characterized in that:
At intake interface with give vent to anger and be connected with first valve (1), surge tank (2), reduction valve (3), gas-holder (4), compressor (5), second valve (6), sensing chamber (7) and the 3rd valve (8) between the interface in turn;
The probe of gas detecting instrument (11) is arranged at sensing chamber (7) inside, also is communicated with drain tap (9) and vacuum pump (10) in the sensing chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200483183U CN202501959U (en) | 2012-02-15 | 2012-02-15 | Detection system of internal leak of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200483183U CN202501959U (en) | 2012-02-15 | 2012-02-15 | Detection system of internal leak of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202501959U true CN202501959U (en) | 2012-10-24 |
Family
ID=47038570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200483183U Expired - Fee Related CN202501959U (en) | 2012-02-15 | 2012-02-15 | Detection system of internal leak of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202501959U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589811A (en) * | 2012-02-15 | 2012-07-18 | 西安泰德实业有限公司 | Method and system for detecting interior leakage of heat exchanger |
| CN104931213A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test apparatus and test method for simulating inner leakage of gas valve |
| CN115219113A (en) * | 2022-09-20 | 2022-10-21 | 中国核动力研究设计院 | Leakage detection method for micro-channel heat exchanger |
-
2012
- 2012-02-15 CN CN2012200483183U patent/CN202501959U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589811A (en) * | 2012-02-15 | 2012-07-18 | 西安泰德实业有限公司 | Method and system for detecting interior leakage of heat exchanger |
| CN104931213A (en) * | 2015-05-27 | 2015-09-23 | 中国石油化工股份有限公司 | Test apparatus and test method for simulating inner leakage of gas valve |
| CN104931213B (en) * | 2015-05-27 | 2017-07-18 | 中国石油化工股份有限公司青岛安全工程研究院 | The experimental rig and test method of leakage in a kind of simulation gas valve |
| CN115219113A (en) * | 2022-09-20 | 2022-10-21 | 中国核动力研究设计院 | Leakage detection method for micro-channel heat exchanger |
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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: 20121024 Termination date: 20150215 |
|
| EXPY | Termination of patent right or utility model |