CN107063656A - A kind of low-temperature test groove - Google Patents
A kind of low-temperature test groove Download PDFInfo
- Publication number
- CN107063656A CN107063656A CN201710086257.7A CN201710086257A CN107063656A CN 107063656 A CN107063656 A CN 107063656A CN 201710086257 A CN201710086257 A CN 201710086257A CN 107063656 A CN107063656 A CN 107063656A
- Authority
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- China
- Prior art keywords
- low
- channel
- section steel
- steel reinforcement
- temperature test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims description 30
- 239000007921 spray Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 15
- 230000037361 pathway Effects 0.000 claims description 12
- 239000004593 Epoxy Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000005187 foaming Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910000734 martensite Inorganic materials 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000002277 temperature effect Effects 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a kind of low-temperature test groove, casing including opening upwards, be arranged in the insulation of casing upper end cover, the casing includes the inner bag and outer courage of inside and outside suit, expanded material is filled between inner bag and outer courage, the outer courage includes side plate, bottom plate and L-shaped support base, L-shaped support base one end is fixedly connected with the bottom plate, and the other end is provided with the chute vertically extended and is flexibly connected by the bolt through the chute with the side plate, and side plate can move up and down relative to bottom plate.The test flume can solve the problem that due to caused by low temperature the problem of outer courage flexural deformation, so as to ensure the closure of the test flume.
Description
Technical field
The present invention relates to cryogenic test equipment technical field, and in particular to a kind of low-temperature test groove.
Background technology
With the fast development of the industry such as space division, liquefied natural gas and ethene petrochemical industry, the application of Subzero valve is also increasingly
Extensively, it is the operation safe and reliable at low temperature of guarantee valve, mechanical strength and heat transfer must be considered simultaneously in the design process
Learn and require.
Low temperature valve not only will normal work at normal temperatures, will also at low temperature being capable of normal work.Especially in ultralow temperature ring
Under border, low temperature valve should have enough toughness to prevent brittle fracture, while requiring that material structure is stable, it is ensured that using process
In will not cause change in size because of phase transformation, ultimately result in valve seal failure.The material that low temperature valve is typically chosen is austenite
Stainless steel, because with the decline of temperature, the intensity of austenitic stainless steel is significantly improved, and toughness is to be slightly decreased.But it is big
Part Cr-Ni austenites are in metastable condition at normal temperatures, and can occur geneva because of distortion of lattice in the range of ultralow temperature
Body changes, because martensite specific volume is bigger than austenite, thus caused by volumetric expansion and structural stress can make accessory size
Change, ultimately results in valve leaks, to prevent material from occurring martensite transfor mation in use, it is necessary to a kind of low-temperature test groove
Subzero treatment is carried out to low temperature valve.
Existing low-temperature test groove is mainly used in the low-temperature test of Subzero valve and the subzero treatment of other parts.Should
Test flume includes the upward casing of mouth, and the casing is closed by being disposed thereon lid in the insulation at end.Casing is stainless by 304
Steel bending is welded into double-decker, and it includes the inner bag and outer courage of inside and outside suit.High insulation polymerization is filled between inner bag and outer courage
Thing expanded material.Inner bag is used to place liquid low-temperature receiver, generally liquid nitrogen.Inner bag is larger by low temperature effect, its side wall retracted downward
Deflection is larger；And outer courage side wall is smaller by low temperature effect, the deflection of its side wall retracted downward can be neglected.Due to inner bag
Connected as one with outer courage, the contraction distortion of side wall of inner can cause outer courage side wall to produce serious flexural deformation；The insulation
Upper lid can not be closed to casing, so as to produce Lou heat, parts may be caused to deform or ftracture.It concurrently there are safety hidden
Suffer from.
The content of the invention
The present invention makes improvements for existing technical problem, i.e., the technical problems to be solved by the invention are to provide one kind
Low-temperature test groove, the test flume can solve the problem that due to caused by low temperature the problem of outer courage flexural deformation, so as to ensure the test flume
Closure.To solve the above problems, the technical scheme that the present invention is provided is：
A kind of low-temperature test groove, including opening upwards casing, be arranged in the insulation of casing upper end cover, the casing bag
The inner bag and outer courage of inside and outside suit are included, expanded material is filled between inner bag and outer courage, the outer courage includes side plate, bottom plate and L
Shape support base, L-shaped support base one end is fixedly connected with the bottom plate, and the other end is provided with the chute vertically extended and passed through
Bolt through the chute is flexibly connected with the side plate, and side plate can move up and down relative to bottom plate.
Further, the side plate is sequentially connected by four head and the tail surrounds the panel of rectangle and constitutes, and each panel is by multiple
Sub-panel is spliced, and the connection between the sub-panel of part is detachable connection.
Further, the sub-panel includes superposed upper junction plate, the lower connecting plate positioned at bottom and embedded installation
It is connected with each other between several horizontally arranged daughter boards between upper junction plate and lower connecting plate, daughter board by connection strap, it is described
Connection strap is bolted with daughter board, its upper end connection upper junction plate, its lower end connection lower connecting plate.
Further, the upper junction plate surface is provided with the first channel-section steel reinforcement of horizontal direction, and the connection strap surface is set
There is the second channel-section steel reinforcement of vertical direction, the lower connecting plate surface is provided with the 3rd channel-section steel reinforcement of horizontal direction, second
The upper end of channel-section steel reinforcement connects the first channel-section steel reinforcement, and lower end connects the 3rd channel-section steel reinforcement.
Further, the first channel-section steel reinforcement is welded on the upper junction plate surface, the second channel-section steel reinforcement weldering
The connection strap surface is connected on, the 3rd channel-section steel reinforcement is welded on the lower connecting plate surface.
Further, in addition to inside the inner bag and in insulation the spray equipment covered, spray equipment can spray
Gas liquid mixture, the casing is provided with the first feed pathway connected with spray equipment.
Further, the spray equipment is shower.
Further, the casing is additionally provided with the second feed pathway, and it is connected with the inner bag bottom.
Further, the epoxy support stick in addition to below the inner bag, the upper end connection inner bag of epoxy support stick, under
Hold connecting bottom board.
Further, in addition to it is arranged on the test specimen fixed mount of box house.
In the above-mentioned technical solutions, by the mating connection of pin and chute side plate can be moved up and down relative to bottom plate.
Under cold service, side wall of inner retracted downward drives the side plate of outer courage to move downward, and the lower end of side plate is not limited by bottom plate,
Side plate flexural deformation is avoided, so as to ensure the closure of the present invention.Generally, filling is needed to send out between inner bag and outer courage
Foam material.In foaming process, in fact it could happen that condensation, the leakage enthusiasm condition of frosting.Due to the local detachable of panel, office can be carried out
Portion is handled, and the daughter board leaked at heat is pulled down from connection strap.In addition, in foaming process, outer courage can produce slight deformation.
Side plate of the present invention is made up of four panels, and each panel is spliced by multiple sub-panels, and side plate adds provided with channel-section steel
Strengthening tendons, is conducive to reducing deflection of the side plate in foaming process.By taking the subzero treatment of Subzero valve as an example, if Subzero valve
Temperature in use is liquid nitrogen temperature, it is necessary to be imported liquid nitrogen from inner bag bottom by the second feed pathway, directly to Subzero valve or
Person's other parts cooling；If the temperature in use of Subzero valve is higher than liquid nitrogen temperature, pass through the first feed pathway and spray equipment
Liquid nitrogen is sprayed into downwards from casing top, the gas liquid mixture that control spray equipment sprays, so as to adjust out different temperature.Institute
The epoxy support stick stated has the advantages that intensity height, good heat preservation performance.Be conducive to the bulk strength of the increase present invention, reduce leakage heat；
In addition, in present invention lifting, cushioning effect is played to the impact that the present invention is subject to., can be with when testing Subzero valve
Subzero valve is clamped by fixation by test specimen fixed mount.
The device have the advantages that：
1. the present invention can solve the problem that due to caused by low temperature the problem of outer courage flexural deformation, it is ensured that the closing of the test flume
Property.
2. the daughter board that the present invention can pull down at Lou heat carries out Local treatment.
3. the present invention is conducive to reducing deflection of the side plate in foaming process.
4. the present invention is on the basis of bulk strength is ensured, leakage heat is reduced.
5. the present invention is in lifting, its impact being subject to is buffered.
6. two kinds of cooling methods can be made by the present invention, different temperature are can adjust out.
7. the present invention can be clamped fixation by test specimen fixed mount to Subzero valve.
Brief description of the drawings
Fig. 1 is internal structure schematic diagram of the invention.
Fig. 2 is the enlarged diagram at A in Fig. 1.
Fig. 3 is front view of the invention.
Fig. 4 is side view of the invention.
Fig. 5 is top view of the invention.
Fig. 6 is the internal structure schematic diagram of side plate of the present invention.
Embodiment
With reference to embodiment and accompanying drawing, the present invention will be further described.
The specific kind embodiment of the present invention, as shown in Figures 1 to 6.
A kind of low-temperature test groove, including lid 2, channel-section steel reinforcement 3, spray equipment 4, epoxy support stick 5 on casing 1, insulation
With test specimen fixed mount 6.
The opening upwards of casing 1, it includes the inner bag 11 and outer courage 12 of inside and outside suit, filled out between inner bag 11 and outer courage 12
Filled with expanded material.Outer courage 12 includes side plate 121, bottom plate 122 and active connection 123, and active connection 123 supports for L-shaped
Seat, the support base one end is fixedly connected with bottom plate 122, and the other end is provided with the chute vertically extended and by through the cunning
The bolt of groove is flexibly connected with side plate, and side plate 121 can move up and down relative to bottom plate 122.Side plate 121 is connected successively by four head and the tail
The panel composition for surrounding rectangle is connect, each panel is spliced by multiple sub-panels.Sub-panel includes superposed upper company
If fishplate bar 1211, the lower connecting plate 1214 positioned at bottom and insertion are arranged between upper junction plate 1211 and lower connecting plate 1214
It is connected with each other between dry horizontally arranged daughter board 1213, daughter board by connection strap 1212, connection strap 1212 passes through with daughter board 1213
Bolt connection, its upper end connection upper junction plate 1211, its lower end connection lower connecting plate 1214.Daughter board 1213 and connection strap 1212 it
Between connection be detachable connection.Casing 1 is provided with the first feed pathway and the second feed pathway, the second feed pathway and inner bag
12 bottoms are connected.
Lid 2 is arranged on the upper end of casing 1 in the insulation.
The channel-section steel reinforcement 3 is by the first channel-section steel reinforcement 31, the second channel-section steel reinforcement 32 and the 3rd channel-section steel reinforcement 33
Composition, the first channel-section steel reinforcement 31 it is horizontally disposed and with the surface soldered of upper junction plate 1211, the 3rd channel-section steel reinforcement 33
It is horizontally disposed and with the surface soldered of lower connecting plate 1214, the second channel-section steel reinforcement 32 vertically sets and with being connected
The surface soldered of bar 1212.The upper end of second channel-section steel reinforcement 32 connects the first channel-section steel reinforcement 31, and lower end connects the 3rd channel-section steel and added
Strengthening tendons 33.Here, in order to save space, channel-section steel reinforcement 3 is arranged on to the inner surface of side plate 121.
The spray equipment 4 is arranged on the inside of inner bag 11 and close to the upper lid 2 of insulation, for spraying gas liquid mixture.First
Feed pathway is connected with spray equipment 4.Spray equipment 4 is shower.
The epoxy support stick 5 is located at the lower section of inner bag 11, the upper end connection inner bag 11 of epoxy support stick 5, lower end connection bottom
Plate 122.
The test specimen fixed mount 6 is arranged on inside casing 1.When present embodiment is tested Subzero valve, pass through examination
Subzero valve is clamped fixation by part fixed mount 6.
The characteristics of this kind of embodiment：
1. present embodiment can solve the problem that due to caused by low temperature the problem of outer courage flexural deformation, it is ensured that the closing of test flume
Property.By the mating connection of pin and chute side plate 121 can be moved up and down relative to bottom plate 122.
2. the daughter board that present embodiment can pull down at Lou heat carries out Local treatment.Generally, inner bag 11 and outer courage 12
Between need filling-foam material.In foaming process, in fact it could happen that condensation, the leakage enthusiasm condition of frosting.Now, it can pull down at Lou heat
Daughter board 1213 carry out Local treatment, i.e., daughter board 1213 is pulled down from connection strap 1212.
3. present embodiment is conducive to reducing deflection of the side plate in foaming process.In foaming process, outer courage can be produced
Slight deformation.Panel described in present embodiment is spliced by multiple sub-panels and side plate 121 is provided with channel-section steel reinforcement
3, deflection of the side plate in foaming process is reduced with this.
4. two kinds of cooling methods can be made by present embodiment.By taking the subzero treatment of Subzero valve as an example, if low temperature valve
The temperature in use of door is liquid nitrogen temperature, it is necessary to be imported liquid nitrogen from inner bag bottom by the second feed pathway, directly to low temperature valve
Door or the cooling of other parts；If the temperature in use of Subzero valve is higher than liquid nitrogen temperature, pass through the first feed pathway and spray
Device 4 sprays into downwards liquid nitrogen from casing top, the gas liquid mixture that control spray equipment 4 sprays, so as to adjust out different
Temperature.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (10)
1. a kind of low-temperature test groove, including opening upwards casing, be arranged in the insulation of casing upper end and cover, the casing includes
The inner bag of inside and outside suit and outer courage, are filled with expanded material between inner bag and outer courage, it is characterised in that the outer courage includes side
Plate, bottom plate and L-shaped support base, L-shaped support base one end are fixedly connected with the bottom plate, and the other end is provided with what is vertically extended
Chute and it is flexibly connected by the bolt through the chute with the side plate, side plate can move up and down relative to bottom plate.
2. low-temperature test groove as claimed in claim 1, it is characterised in that the side plate is sequentially connected by four head and the tail and surrounds square
The panel composition of shape, each panel is spliced by multiple sub-panels, and the connection between the sub-panel of part is detachable company
Connect.
3. low-temperature test groove as claimed in claim 2, it is characterised in that the sub-panel includes superposed upper connection
Plate, the lower connecting plate positioned at bottom and embedded several horizontally arranged sons being arranged between upper junction plate and lower connecting plate
It is connected with each other between plate, daughter board by connection strap, the connection strap is bolted with daughter board, its upper end connection upper junction plate,
Its lower end connects lower connecting plate.
4. low-temperature test groove as claimed in claim 3, it is characterised in that the upper junction plate surface provided with horizontal direction the
One channel-section steel reinforcement, the connection strap surface is provided with the second channel-section steel reinforcement of vertical direction, and the lower connecting plate surface is provided with
3rd channel-section steel reinforcement of horizontal direction, the upper end of the second channel-section steel reinforcement connects the first channel-section steel reinforcement, lower end connection the 3rd
Channel-section steel reinforcement.
5. low-temperature test groove as claimed in claim 4, it is characterised in that the first channel-section steel reinforcement is welded on the upper company
Fishplate bar surface, the second channel-section steel reinforcement is welded on the connection strap surface, and the 3rd channel-section steel reinforcement is welded on described
Lower connecting plate surface.
6. the low-temperature test groove as any one of claim 1 to 5, it is characterised in that also including in the inner bag
Portion and the spray equipment covered in insulation, spray equipment can spray gas liquid mixture, and the casing is provided with to be connected with spray equipment
The first logical feed pathway.
7. low-temperature test groove as claimed in claim 6, it is characterised in that the spray equipment is shower.
8. low-temperature test groove as claimed in claim 6, it is characterised in that the casing is additionally provided with the second feed pathway, its with
The inner bag bottom connection.
9. the low-temperature test groove as any one of claim 1 to 5, it is characterised in that also including under the inner bag
The epoxy support stick of side, the upper end connection inner bag of epoxy support stick, lower end connecting bottom board.
10. the low-temperature test groove as any one of claim 1 to 5, it is characterised in that also including being arranged on box house
Test specimen fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086257.7A CN107063656A (en) | 2017-02-17 | 2017-02-17 | A kind of low-temperature test groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710086257.7A CN107063656A (en) | 2017-02-17 | 2017-02-17 | A kind of low-temperature test groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107063656A true CN107063656A (en) | 2017-08-18 |
Family
ID=59621704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710086257.7A Pending CN107063656A (en) | 2017-02-17 | 2017-02-17 | A kind of low-temperature test groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107063656A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907321A (en) * | 2017-12-15 | 2018-04-13 | 江苏克劳特低温技术有限公司 | One kind leakage heat test device and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445790A (en) * | 1982-04-07 | 1984-05-01 | United Technologies Corporation | Apparatus for cryogenic proof testing of rotating parts |
| JPH05196029A (en) * | 1992-01-22 | 1993-08-06 | Ishikawajima Harima Heavy Ind Co Ltd | Fixing method of linear plate for side wall of outer tank in low temperature storage tank |
| CN201002759Y (en) * | 2007-01-05 | 2008-01-09 | 安庆市曙光包装有限责任公司 | Detachable metal tray box capable of being filled liquid |
| CN102713401A (en) * | 2010-01-28 | 2012-10-03 | 大阪瓦斯株式会社 | Low-temperature tank |
| CN104477518A (en) * | 2014-11-07 | 2015-04-01 | 北京卫星环境工程研究所 | Packaging box with active/passive temperature control combined control system |
| CN105758598A (en) * | 2016-04-22 | 2016-07-13 | 上海市特种设备监督检验技术研究院 | Low temperature test device of valve performance |
| CN205642816U (en) * | 2016-05-06 | 2016-10-12 | 上海沪东造船阀门有限公司 | Cryrogenic proof box suitable for marine super low temperature valve of liquefied natural gas |
| CN206670897U (en) * | 2017-02-17 | 2017-11-24 | 安徽万瑞冷电科技有限公司 | A kind of low-temperature test groove |
-
2017
- 2017-02-17 CN CN201710086257.7A patent/CN107063656A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4445790A (en) * | 1982-04-07 | 1984-05-01 | United Technologies Corporation | Apparatus for cryogenic proof testing of rotating parts |
| JPH05196029A (en) * | 1992-01-22 | 1993-08-06 | Ishikawajima Harima Heavy Ind Co Ltd | Fixing method of linear plate for side wall of outer tank in low temperature storage tank |
| CN201002759Y (en) * | 2007-01-05 | 2008-01-09 | 安庆市曙光包装有限责任公司 | Detachable metal tray box capable of being filled liquid |
| CN102713401A (en) * | 2010-01-28 | 2012-10-03 | 大阪瓦斯株式会社 | Low-temperature tank |
| CN104477518A (en) * | 2014-11-07 | 2015-04-01 | 北京卫星环境工程研究所 | Packaging box with active/passive temperature control combined control system |
| CN105758598A (en) * | 2016-04-22 | 2016-07-13 | 上海市特种设备监督检验技术研究院 | Low temperature test device of valve performance |
| CN205642816U (en) * | 2016-05-06 | 2016-10-12 | 上海沪东造船阀门有限公司 | Cryrogenic proof box suitable for marine super low temperature valve of liquefied natural gas |
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Non-Patent Citations (1)
| Title |
|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907321A (en) * | 2017-12-15 | 2018-04-13 | 江苏克劳特低温技术有限公司 | One kind leakage heat test device and its application method |
| CN107907321B (en) * | 2017-12-15 | 2024-02-02 | 江苏克劳特低温技术有限公司 | Heat leakage testing device and using method thereof |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |
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