CN102889445B - Withstand test machine, withstand test system and method for microchannel tube - Google Patents
Withstand test machine, withstand test system and method for microchannel tube Download PDFInfo
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- CN102889445B CN102889445B CN201210351756.1A CN201210351756A CN102889445B CN 102889445 B CN102889445 B CN 102889445B CN 201210351756 A CN201210351756 A CN 201210351756A CN 102889445 B CN102889445 B CN 102889445B
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Abstract
The invention discloses a high pressure microchannel tube joint, a withstand test machine, a withstand test system and a method thereof. The withstand test system comprises an air compressor which provides working pressure, a water pressure system which provides working water flow and performs water pressure collection and control, and a withstand test machine which is mainly composed of a high-pressure gas-driven liquid pump, a high-pressure microchannel tube connector, a pressure plugging device and a working table. The method aims to test pressure endurance capability of a microchannel flat tube. The pressure endurance capability is tested through the method of sealing one end of the microchannel flat tube and injecting high-pressure water into the other end. By adopting the withstand test system and the method, a withstand test on relatively soft metal tubes made of copper, aluminium and the like, and on tubes with circular cross sections and non-circular cross sections and with small rigidity can be achieved; and in addition, with adoption of the withstand test system, a pressure blasting test and a pressure maintenance test can be achieved on both microchannel extruded tubes and folded tubes, especially tabular cross-section tubes and particularly tubes of which cross sections are provided with vesicular structures and singular pore structures.
Description
Technical field
The present invention relates to the pressure test system of micro-channel tubes, this device can be realized pressurize test, the bursting test of the micro-channel tubes of all size, particularly, to thering is the pressure test of the micro-channel flat of porous structure and unusual hole structure on pipe cross section, the invention still further relates to a kind of micro-channel tubes withstand voltage test method.
Background technique
At present air conditioner industry and automobile industry at home international all develop more rapidly present the thriving development trend of a slice, future prospect is valued by a lot of farsighted investor.And heat exchanger has very important effect in the middle of these two industries, and annual requirement is all very large.Especially in air-conditioning manufacturing industry, the quality of heat exchanger directly has influence on refrigeration and the heating performance of air-conditioning.Therefore high-performance, high efficiency, safe and reliable heat exchanger can not only bring abundant economic benefit and reputation for producer, also to user, provide a kind of energy-conservation, safe living environment simultaneously.
No matter be the minitype air conditioner of family expenses or larger central air-conditioner, its heat exchanger is all that on the cross section of being made by copper or aluminium, the tubing (micro-channel tubes) with a plurality of micropores is connected and forms with the sheet metal of small size substantially.By inject the cryogenic fluid of high pressure, high speed in micro-channel tubes, realize the object of refrigeration, thereby just proposed requirement for the withstand voltage properties of micro-channel tubes.More particularly, need exactly the pressure of knowing that definitely micro-channel tubes can bear and the pressure range of trouble free service.
Through retrieval, having application number is that 201010524896.5 patent names are: a kind of thin-wall steel tube hydrostatic pressure testing method of end face seal.In this patent, there are related seals and pressure test method, but the method cannot realize the pressure test of wanting soft a lot of aluminium matter thin-wall pipes, flat cross section tubing, low rigidity tubing with respect to steel, and the pressure test of the tubing of small bore multi-pore channel (as shown in Figure 1).And just can solve these problems in the present invention.
Summary of the invention
An object of the present invention is to provide a kind of high pressure micro-channel tubes joint for micro-channel tubes pressure test, for connecting micro-channel tubes and high pressure water circuit, can under high pressure (tens MPas), still can keep excellent sealing effect.
High pressure micro-channel tubes joint of the present invention, by joint overcoat, joint inner core, tapered sealing rubber plug forms, tapered sealing rubber plug is positioned at joint inner core inside, joint inner core and tapered caulking gum are equipped with beyond the Great Wall for inserting the through hole of micro-channel tubes, micro-channel tubes, along inserting in the through hole of joint inner core end face, inserts the through hole of tapered sealing rubber plug simultaneously again; Joint inner core and joint overcoat are by being positioned at outside thread on joint inner core and being positioned at the internal thread that joint puts outward and being connected.
Preferably, described joint inner core end has groove, and this groove is embedded in O type circle, for sealing.
Preferably, described joint overcoat adopts and is threaded with joint inner core, is tied with raw meal belt for sealing on screw thread.
Preferably, all there is rectangular block at described joint overcoat and joint inner core two ends in order to facilitate jointing.
Preferably, the micro-channel tubes shape setting that described joint inner core and tapered caulking gum shape of through holes beyond the Great Wall can be tested as required, such as being applicable to the circular hole of circular micro-channel tubes, or is applicable to the narrow slit of flat tube, or other special shapes etc.
Above-mentioned high pressure micro-channel tubes joint, micro-channel tubes, along inserting in the through hole of joint inner core end face, inserts the through hole of tapered sealing rubber plug simultaneously again, then O type circle is embedded in joint inner core groove.
Another object of the present invention is to provide a kind of compression tester that comprises above-mentioned high pressure micro-channel tubes joint, can well realize micro-channel tubes end face seal, can complete copper, aluminium matter etc. and relatively want the pressure test of soft tubing, especially for thering is the micro-channel flat of porous structure and unusual hole structure on flat tube cross section.
Compression tester of the present invention mainly consists of high pressure gas drive liquid pump, high pressure micro-channel tubes joint, pressure block apparatus and worktable; High pressure micro-channel tubes joint and pressure block apparatus are arranged on worktable, and high pressure micro-channel tubes joint is used for connecting hydraulic pressure system and micro-channel tubes, press block apparatus that one end of micro-channel tubes is blocked; High pressure gas drive liquid pump is arranged on worktable below, and high pressure gas drive liquid pump connects hydraulic pressure system.
Preferably, described pressure block apparatus Shi Yi oil cylinder press mechanism.Further, described oil cylinder press mechanism is provided with briquetting and cushion block, and one end of micro-channel tubes is arranged between briquetting and cushion block, and briquetting moves one end of micro-channel tubes is blocked under oil pressure cylinder effect.
Preferably, two guide rods have been installed on described worktable, high pressure micro-channel tubes joint and pressure block apparatus are connected on this guide rod, thereby make the distance between micro-channel tubes, high pressure micro-channel tubes joint, pressure block apparatus adjustable, to adapt to the demand of the micro-channel tubes pressure test of different length.
Still a further object of the present invention is to provide a kind of micro-channel tubes pressure test system that comprises above-mentioned compression tester, can complete copper, aluminium matter etc. and relatively want the pressure test of soft tubing, especially for thering is the micro-channel flat of porous structure and unusual hole structure on flat tube cross section.
Micro-channel tubes pressure test system of the present invention comprises:
The air compressor of working pressure is provided, and the high pressure gas drive liquid pump that this air compressor is mainly in compression tester body provides pressurized gas;
The hydraulic pressure system that working flow is provided and carries out hydraulic pressure collection and control, this hydraulic pressure system is connected with the high pressure gas drive liquid pump in compression tester, so that high-pressure water to be provided;
Compression tester, mainly consists of high pressure gas drive liquid pump, high pressure micro-channel tubes joint, pressure block apparatus and worktable; High pressure micro-channel tubes joint and pressure block apparatus are arranged on worktable, and high pressure micro-channel tubes joint is used for connecting hydraulic pressure system and micro-channel tubes, press block apparatus that one end of micro-channel tubes is blocked; High pressure gas drive liquid pump is arranged on worktable below, and high pressure gas drive liquid pump connects hydraulic pressure system.
Preferably, described hydraulic pressure system, mainly by a plurality of pressure transducers, microcomputer and pressure regulator valve, formed, wherein pressure transducer is for detection of hydraulic pressure (high pressure water of flat tube joints sleeve is sent in detection to), according to pressure transducer feedack, then manual tune or just can change on request the hydraulic pressure that passes into micro-channel tubes inner high voltage water by microcomputer automatic control pressure regulator valve, to adapt to the needs of different tests object.
Last object of the present invention is to provide a kind of experimental technique that adopts above-mentioned micro-channel tubes pressure test system to carry out, can complete copper, aluminium matter etc. and relatively want the pressure test of soft tubing, especially for thering is the micro-channel flat of porous structure and unusual hole structure on flat tube cross section.
A kind of micro-channel tubes withstand voltage test method of the present invention comprises the steps:
1) installation of flat tube
The micro-channel tubes of accomplishing fluently aperture is inserted to joint inner core and continues to insert tapered sealing rubber plug; Again joint overcoat is connected with the joint inner core that micro-channel tubes is installed; Wherein joint inner core is to rely on the outside thread being positioned on joint inner core to realize and being connected with the internal thread on joints sleeve with joint overcoat; On screw thread, be tied with raw meal belt for sealing;
2) water flowing
Whether to passing into low-pressure water in the micro-channel tubes connecting, to detect water route unobstructed and observe whether blocking phenomenon of each port hole of micro-channel tubes;
3) sealing of micro-channel tubes one end
Start to press block apparatus to realize the compression to micro-channel tubes, then continue to apply one end that impacting force makes micro-channel tubes and blocked to guarantee can not penetrate and cause pressure release at ensuing test mesohigh current;
4) pressurization explosion
In the present invention, can be by manual tune (directly by manual tune pressure regulator valve) or automatically regulate the mode of (realizing controls by PC) control hydraulic pressure, make it by both provisioning request variations until flat tube is pressed quick-fried.
The invention provides a kind of about having withstand voltage test method and the system of the micro-channel tubes of multi-pore channel, by the present invention, can complete the pressure test that copper, aluminium matter etc. is wanted soft tubing relatively, no matter and be that micro passage extruded tube or collapsible tubing can complete pressure bursting test and pressurize test on this testing apparatus, the joint of mesohigh of the present invention water route and micro-channel tubes adopts special construction and sealing principle to make the present invention can be competent at the pressure test of the micro-channel flat with various unusual port hole.
Accompanying drawing explanation
Fig. 1 is different micro-channel flat sectional views;
Fig. 2 is the mounting type figure of flat tube and joint;
In Fig. 2: tapered sealing rubber plug 21, joint inner core 22, O type circle 23, joint overcoat 24, micro-channel flat 4;
Fig. 3 presses block apparatus, presses stifled flat tube schematic diagram;
In Fig. 3: cushion block 31, briquetting 32, oil hydraulic cylinder 33, micro-channel flat 4;
Fig. 4 flat tube joint sealing schematic diagram;
In Fig. 4: tapered sealing rubber plug 21, joint inner core 22, micro-channel flat 4, high pressure water B;
Fig. 5 Withstand test device schematic diagram;
In Fig. 5: worktable 1, high pressure micro-channel tubes joint 2, presses block apparatus 3, micro-channel flat 4, gas drive liquid pump 5, hydraulic station 6, pressure oil A, high pressure water B.
Embodiment
Below embodiments of the invention are elaborated, the present embodiment be take technical solution of the present invention and is implemented as prerequisite, provided detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.Take below the performance of micro-channel flat as example explanation system and method for the present invention.
The present embodiment provides a kind of high pressure micro-channel flat joint for micro-channel tubes pressure test, for connecting hydraulic pressure system and micro-channel flat.
As shown in Figure 2, be high pressure micro-channel flat joint schematic diagram, flat tube joint consists of joint overcoat 24, flat tube joint inner core 22, tapered sealing rubber plug 21 and an O type circle 23.Tapered sealing rubber plug 21 is positioned at flat tube joint inner core 22 inside, on flat tube joint inner core 22 and tapered sealing rubber plug 21, be equipped with for inserting the narrow slit of micro-channel tubes, micro-channel tubes inserts along the narrow slit of flat tube joint inner core end face, inserts the narrow slit of tapered sealing rubber plug simultaneously again; Micro-channel tubes is provided with an aperture, at micro-channel tubes, inserts after flat tube joint inner core 22, tapered sealing rubber plug 21; At flat tube joint inner core 22 end face grooves, embed O type circle 23; Flat tube joint inner core 22 is connected with the internal thread that flat tube is positioned on joint overcoat 24 by the outside thread being positioned on flat tube joint inner core 22 with flat tube joint overcoat 24.
In the present embodiment, described flat tube joint inner core 22 is provided with groove, for placing O type circle.
Described in the present embodiment during jiont treatment, first by micro-channel flat 4 along inserting in the narrow slit of flat tube joint inner core 22 end faces, then insert again rubber sealing boot plug, and then O type circle 23 pins embedded and are positioned at the groove on flat tube joint inner core 22.After completing above-mentioned steps, flat tube joint inner core 22 and flat tube joint overcoat 24 can be coupled together.
In the present embodiment, by tapered sealing rubber plug 21, flat tube joint inner core 22 and flat tube joint overcoat 24, cooperatively interacted and the structure that forms can still can keep excellent sealing effect under high pressure (tens MPas).The installation of flat tube joint is a tapered sealing rubber plug 21 with its core of sealing, and the feature of sealing rubber stopper is to have utilized the yielding feature of rubber.As shown in Figure 4, in the time of on the large bottom surface of the Water Pressure up to tens MPas at tapered sealing rubber plug 21, the internal surface of joint inner core 22 can produce reaction force to tapered sealing rubber plug 21, thereby tapered rubber stopper 21 inwardly compresses flat tube 4 realization sealings under this reaction force.The sealing effect of being not difficult to find out the larger sealing rubber stopper 21 of hydraulic pressure from figure is just better.
The present embodiment provides the compression tester of joint described in a kind of embodiment of comprising 1.
As shown in Figure 3 and Figure 5, described compression tester mainly consists of high pressure gas drive liquid pump 5, high pressure micro-channel flat joint, pressure block apparatus 3 and worktable 1; High pressure micro-channel flat joint and pressure block apparatus 3 are arranged on worktable 1, and high pressure micro-channel flat joint is used for connecting hydraulic pressure system and micro-channel flat 4, press block apparatus 3 that one end of micro-channel flat 4 is blocked; High pressure gas drive liquid pump 5 is arranged on worktable 1 below, and high pressure gas drive liquid pump 5 connects hydraulic pressure system.
In the present embodiment, described pressure block apparatus Shi Yi oil cylinder press mechanism, oil cylinder press mechanism is provided with briquetting 32, simultaneously, this mechanism is also provided with cushion block 31, and one end of micro-channel flat is arranged between briquetting 32 and cushion block 31, and briquetting 32 moves one end of micro-channel flat is blocked under oil pressure cylinder effect.Preferably, the briquetting 32 of oil cylinder press mechanism is arranged on cushion block 31 tops, and briquetting 32 moves downward one end of micro-channel tubes is blocked.Hydraulic station 6 is connected with pressing block apparatus 3, has oil hydraulic pump for pressing block apparatus 3 that high pressure oil is provided in it.
In the present embodiment, two guide rods have been installed on described worktable 1, high pressure micro-channel flat joint and pressure block apparatus are connected on this guide rod, thereby make micro-channel flat, high pressure micro-channel flat joint, press the distance between block apparatus adjustable, to adapt to the demand of the micro-channel flat pressure test of different length.
The high pressure oil (A in Fig. 5) that oil hydraulic cylinder 33 top accesses are provided by hydraulic station 6, its underpart and briquetting 32 are connected; High pressure oil can drive briquetting 32 in the vertical directions to move up and down after passing into oil hydraulic cylinder 33, to realize the compression to micro-channel flat.
The present embodiment can well be realized micro-channel tubes end face seal, can be used for the pressure test that copper, aluminium matter etc. is wanted soft tubing relatively, especially for having the micro-channel flat of porous structure and unusual hole structure on flat tube cross section.
The present embodiment provides the micro-channel tubes pressure test system of compression tester described in a kind of embodiment of comprising 2.
As shown in Figure 5, micro-channel tubes pressure test system comprises:
The air compressor of working pressure is provided, and the high pressure gas drive liquid pump that this air compressor is mainly in compression tester body provides pressurized gas; Under nominal working conditions, this air compressor can be for the pressurized gas of 0.6Mpa is provided, and this pressurized gas directly accesses gas drive liquid pump 5 so that high-pressure water to be provided, and what in the present embodiment, adopt is the gas drive liquid pump of 1:100 pressure ratio.
The hydraulic pressure system that working flow is provided and carries out hydraulic pressure collection and control, this hydraulic pressure system is connected with the high pressure gas drive liquid pump in compression tester, so that high-pressure water to be provided; Hydraulic pressure system is mainly comprised of a plurality of pressure transducers, microcomputer and pressure regulator valve, wherein pressure transducer is for detection of hydraulic pressure, according to pressure transducer feedack, then manual tune or just can change on request the hydraulic pressure that passes into micro-channel tubes inner high voltage water by microcomputer automatic control pressure regulator valve, to adapt to the needs of different tests object.
Compression tester, structure as described in Example 2.
That the present embodiment can complete is copper, aluminium matter etc. wanted the pressure test of soft tubing relatively, and especially for having the micro-channel flat of porous structure and unusual hole structure on flat tube cross section, concrete complete process can be referring to embodiment 4.
The present embodiment provides the micro-channel flat withstand voltage test method of system described in a kind of embodiment of employing 3, comprises the steps:
1) installation of flat tube
As shown in Figure 2, the flat tube 4 of accomplishing fluently aperture is inserted to joint inner core 22 and continues to insert tapered sealing rubber plug 21; After the embedding of O type circle is put in place, joint overcoat 24 can be connected with the joint inner core 22 that flat tube is installed; Wherein flat tube joint inner core 22 is to rely on the outside thread being positioned on joint inner core 22 to realize and being connected with the internal thread on joints sleeve 24 with joints sleeve 24, is tied with raw meal belt for sealing on screw thread;
2) water flowing
Whether to passing into low-pressure water in the flat tube connecting, to detect water route unobstructed and observe whether blocking phenomenon of each port hole of flat tube;
3) sealing of flat tube one end
Starting the oil hydraulic cylinder of pressing in block apparatus 3 makes briquetting 32 descending, the distance (wherein cushion block is fixed on and presses below block apparatus) of rely on controlling as shown in Figure 3 between briquetting 32 and cushion block 31 can realize the compression to flat tube, then continues lifting hydraulic cylinder and is applied to impacting force on flat tube 4 and makes one end of flat tube 4 be blocked to guarantee can not penetrate and cause pressure release at ensuing test mesohigh current;
4) pressurization explosion
The parameter of input control variation in water pressure in microcomputer; By microcomputer, control hydraulic pressure system, realize the demand for control to hydraulic pressure.Certainly, in other embodiments, also can directly in manual mode, regulate pressure regulator valve.
In the present embodiment, flat tube joint inner core 22 relies on the outside thread being positioned on flat tube joint inner core 22 to be connected with the internal thread on flat tube joint overcoat 24 with flat tube joint overcoat 24.In experiment, the screw thread of tight flat tube joint inner core and flat tube joint overcoat must be tightened, prevent from producing pressure release phenomenon when high pressure.
As shown in Figure 5, flat tube 4 is correctly fit into after flat tube joint, adjust flat tube 4 attitudes and make it maintenance level, and the joint that packs flat tube into is correctly fixed in flat tube joint overcoat 24, the hexagon socket head cap screw that has a radial arrangement on this cover 24, this hexagon socket head cap screw can be fixed on joint in joint overcoat.Complete after aforesaid operations and can be first to passing into low-pressure water in flat tube 4, to detect whether connect water route unobstructed.If can see, current penetrate and can proceed test equably from flat tube 4 each passages.Then by actual conditions, regulate the distance of pressing between block apparatus 3 and joint that the other end of flat tube 4 just in time can be placed between the briquetting 32 and cushion block 31 in pressure block apparatus 3 in water route and flat tube 4 passages disconnections.Open to press oil hydraulic cylinder in block apparatus 3 to make briquetting 32 descending and compress flat tube 4, continue lifting hydraulic cylinder and be applied to impacting force on flat tube 4 and make flat tube be blocked to guarantee can not penetrate and cause pressure release at ensuing test mesohigh current.Complete can opening the water route being connected with flat tube 4 after the compression work of flat tube 4 and constantly promoting hydraulic pressure.According to pressure transducer feedack, then regulate pressure regulator valve just can change on request the hydraulic pressure that passes into flat tube 4 inner high voltage water, to adapt to the needs of different tests object.
By said apparatus and method, can complete that copper, aluminium matter etc. is relative wants soft metal pipe and the little circular cross-section of rigidity and the pressure test of noncircular cross section tubing, be mainly used at present the pressure test of the micro-channel flat in air-condition heat exchanger, no matter and be micro passage extruded tube or collapsible tubing, the tubing particularly on flat cross section tubing, especially cross section with porous structure and unusual hole structure can complete pressure bursting test and pressurize test on this testing apparatus.
Although content of the present invention has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention, the present invention can also be applied to the pressure-bearing test of the micro-channel tubes of other shapes.Those skilled in the art, read after foregoing, for multiple modification of the present invention with to substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a high pressure micro-channel tubes joint, be used for connecting micro-channel tubes and high pressure water circuit, it is characterized in that: mainly by joint overcoat, joint inner core and tapered sealing rubber plug, formed, tapered sealing rubber plug is positioned at joint inner core inside, joint inner core and tapered caulking gum are equipped with beyond the Great Wall for inserting the through hole of micro-channel tubes, micro-channel tubes, along inserting in the through hole of joint inner core end face, inserts the through hole of tapered sealing rubber plug simultaneously again; Joint inner core and joint overcoat are by being positioned at outside thread on joint inner core and being positioned at the internal thread that joint puts outward and being connected.
2. high pressure micro-channel tubes joint according to claim 1, is characterized in that: described joint inner core end has groove, and this groove is embedded in the O type circle for sealing.
3. high pressure micro-channel tubes joint according to claim 1 and 2, is characterized in that: described joint overcoat adopts and is threaded with joint inner core, is tied with raw meal belt for sealing on screw thread; Described joint overcoat all has rectangular block to be connected in order to convenient with joint inner core two ends.
4. a compression tester that comprises joint described in claim 1-3, is characterized in that: mainly by high pressure gas drive liquid pump, high pressure micro-channel tubes joint, press block apparatus and worktable to form; High pressure micro-channel tubes joint and pressure block apparatus are arranged on worktable, and high pressure micro-channel tubes joint is used for connecting hydraulic pressure system and micro-channel tubes, press block apparatus that one end of micro-channel tubes is blocked; High pressure gas drive liquid pump is arranged on worktable below, and high pressure gas drive liquid pump connects hydraulic pressure system.
5. compression tester according to claim 4, it is characterized in that: described pressure block apparatus Shi Yi oil cylinder press mechanism, described oil cylinder press mechanism is provided with briquetting and cushion block, one end of micro-channel tubes is arranged between briquetting and cushion block, and briquetting moves one end of micro-channel tubes is blocked under oil pressure cylinder effect.
6. according to the compression tester described in claim 4 or 5, it is characterized in that: two guide rods have been installed on described worktable, high pressure micro-channel tubes joint and pressure block apparatus are connected on this guide rod, thereby make micro-channel tubes, high pressure micro-channel tubes joint, press the distance between block apparatus adjustable, to adapt to the demand of the micro-channel tubes pressure test of different length.
7. a micro-channel tubes pressure test system that comprises compression tester described in claim 4-6, is characterized in that: comprising:
The air compressor of working pressure is provided, and the high pressure gas drive liquid pump that this air compressor is mainly in compression tester body provides pressurized gas;
The hydraulic pressure system that working flow is provided and carries out hydraulic pressure collection and control, this hydraulic pressure system is connected with the high pressure gas drive liquid pump in compression tester, so that high-pressure water to be provided;
Compression tester, mainly consists of high pressure gas drive liquid pump, high pressure micro-channel tubes joint, pressure block apparatus and worktable; High pressure micro-channel tubes joint and pressure block apparatus are arranged on worktable, and high pressure micro-channel tubes joint is used for connecting hydraulic pressure system and micro-channel tubes, press block apparatus that one end of micro-channel tubes is blocked; High pressure gas drive liquid pump is arranged on worktable below, and high pressure gas drive liquid pump connects hydraulic pressure system.
8. micro-channel tubes pressure test system according to claim 7, it is characterized in that: described hydraulic pressure system, mainly by a plurality of pressure transducers, microcomputer and pressure regulator valve, formed, wherein pressure transducer is for detection of the high pressure water hydraulic pressure of sending flat tube joints sleeve to, according to pressure transducer feedack, then manual tune pressure regulator valve or just can change on request the hydraulic pressure that passes into micro-channel tubes inner high voltage water by microcomputer automatic control, to adapt to the needs of different tests object.
9. adopt the micro-channel tubes withstand voltage test method that system is carried out described in claim 7-8, it is characterized in that: comprise the steps:
1) installation of micro-channel tubes
The micro-channel tubes of accomplishing fluently aperture is inserted to joint inner core and continues to insert tapered sealing rubber plug; Again joint overcoat is connected with the joint inner core that micro-channel tubes is installed; Wherein joint inner core is to rely on the outside thread being positioned on joint inner core to realize and being connected with the internal thread on joints sleeve with joint overcoat; On screw thread, be tied with raw meal belt for sealing
2) water flowing
Whether to passing into low-pressure water in the micro-channel tubes connecting, to detect water route unobstructed and observe whether blocking phenomenon of each port hole of micro-channel tubes;
3) sealing of micro-channel tubes one end
Start to press block apparatus to realize the compression to micro-channel tubes, then continue to apply one end that impacting force makes micro-channel tubes and blocked to guarantee can not penetrate and cause pressure release at ensuing test mesohigh current;
4) pressurization explosion.
10. micro-channel tubes withstand voltage test method according to claim 9, it is characterized in that: described pressurization explosion refers to: directly by manual tune pressure regulator valve, control hydraulic pressure, or control hydraulic pressure by the mode that PC is realized control, make it to change until flat tube is pressed quick-fried by both provisioning requests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351756.1A CN102889445B (en) | 2012-09-20 | 2012-09-20 | Withstand test machine, withstand test system and method for microchannel tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210351756.1A CN102889445B (en) | 2012-09-20 | 2012-09-20 | Withstand test machine, withstand test system and method for microchannel tube |
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| Publication Number | Publication Date |
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| CN102889445A CN102889445A (en) | 2013-01-23 |
| CN102889445B true CN102889445B (en) | 2014-01-29 |
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| CN201210351756.1A Expired - Fee Related CN102889445B (en) | 2012-09-20 | 2012-09-20 | Withstand test machine, withstand test system and method for microchannel tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104614248B (en) * | 2013-11-05 | 2018-02-27 | 珠海格力电器股份有限公司 | Pipe testing apparatus |
| CN111707558A (en) * | 2020-07-23 | 2020-09-25 | 临沂大学 | Micro-channel heat dissipation aluminum profile pressure resistance experiment device and experiment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042935A (en) * | 2010-10-29 | 2011-05-04 | 马利芳 | Method for detecting hydrostatic pressure of thin-wall steel pipe under end face seal condition |
| CN202203552U (en) * | 2011-07-29 | 2012-04-25 | 上海瑞斯乐复合金属材料有限公司 | Multi-hole micro-channel flat tube airtight joint device |
| CN202955375U (en) * | 2012-09-20 | 2013-05-29 | 无锡凯博易机电科技有限公司 | High-pressure microchannel pipe joint, compression tester and microchannel pipe pressure-tight test system |
-
2012
- 2012-09-20 CN CN201210351756.1A patent/CN102889445B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042935A (en) * | 2010-10-29 | 2011-05-04 | 马利芳 | Method for detecting hydrostatic pressure of thin-wall steel pipe under end face seal condition |
| CN202203552U (en) * | 2011-07-29 | 2012-04-25 | 上海瑞斯乐复合金属材料有限公司 | Multi-hole micro-channel flat tube airtight joint device |
| CN202955375U (en) * | 2012-09-20 | 2013-05-29 | 无锡凯博易机电科技有限公司 | High-pressure microchannel pipe joint, compression tester and microchannel pipe pressure-tight test system |
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| CN102889445A (en) | 2013-01-23 |
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