CN206670897U - A kind of low-temperature test groove - Google Patents
A kind of low-temperature test groove Download PDFInfo
- Publication number
- CN206670897U CN206670897U CN201720144393.2U CN201720144393U CN206670897U CN 206670897 U CN206670897 U CN 206670897U CN 201720144393 U CN201720144393 U CN 201720144393U CN 206670897 U CN206670897 U CN 206670897U
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- low
- channel
- section steel
- steel reinforcement
- temperature test
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Abstract
The utility model discloses a kind of low-temperature test groove, casing including opening upwards, it is arranged in the insulation of casing upper end and covers, the casing includes the inner bag of inside and outside suit and outer courage, expanded material is filled between inner bag and outer courage, it is characterized in that, 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, 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.
Description
Technical field
It the utility model is related 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, to ensure valve operation safe and reliable at low temperature, 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 require that material structure is stable, ensure 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 simply slightly decreased.It is but big
Part Cr-Ni austenites are in metastable condition at normal temperatures, and geneva can occur because of distortion of lattice in the range of ultralow temperature
Body changes, because martensite specific volume is bigger than austenite, therefore caused by volumetric expansion and structural stress can make accessory size
Change, ultimately results in valve leaks, to prevent material from martensite transfor mation occurs 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 of inside and outside suit and outer courage.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, Lou hot so as to produce, and parts may be caused to deform or ftracture.It is hidden to concurrently there are safety
Suffer from.
Utility model content
The utility model makes improvements for existing technical problem, i.e., technical problem to be solved in the utility model is
There is provided a kind of low-temperature test groove, the test flume can solve the problem that due to the outer courage flexural deformation caused by low temperature the problem of, so as to ensure
The closure of the test flume.To solve the above problems, technical scheme provided by the utility model is：
A kind of low-temperature test groove, including the casing of opening upwards, be arranged in the insulation of casing upper end and cover, the casing bag
The inner bag of inside and outside suit and outer courage 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 are 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 forms, 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
Several horizontally arranged daughter boards between upper junction plate and lower connecting plate, it is connected with each other by connection strap between daughter board, 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, and 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 are 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 liner at the bottom.
Further, in addition to the epoxy support stick below the inner bag, the upper end of epoxy support stick connect inner bag, 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, can be moved up and down by the mating connection side plate of pin and chute 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 closure of the present utility model.Generally, need to fill out between inner bag and outer courage
Fill expanded material.In foaming process, in fact it could happen that condensation, the leakage enthusiasm condition of frosting.Due to the local detachable of panel, Neng Goujin
Row Local treatment, 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 described in the utility model is made up of four panels, and each panel is spliced by multiple sub-panels, is set on side plate
There is channel-section steel reinforcement, be advantageous to reduce deflection of the side plate in foaming process.By taking the subzero treatment of Subzero valve as an example, if low
The temperature in use of warm valve is liquid nitrogen temperature, it is necessary to be imported liquid nitrogen from liner at the bottom by the second feed pathway, directly to low
Warm valve or the cooling of other parts；If the temperature in use of Subzero valve is higher than liquid nitrogen temperature, by the first feed pathway and
Spray equipment sprays into downwards liquid nitrogen from casing top, the gas liquid mixture that control spray equipment sprays, so as to adjust out difference
Temperature.Described epoxy support stick has the advantages of high intensity, good heat preservation performance.Be advantageous to increase entirety of the present utility model strong
Degree, reduce leakage heat；In addition, when the utility model lifts, cushioning effect is played to the impact that the utility model is subject to.To low temperature
When valve is tested, Subzero valve can be clamped by fixation by test specimen fixed mount.
The utility model has the advantage that：
1. the utility model can solve the problem that due to the outer courage flexural deformation caused by low temperature the problem of, ensure the envelope of the test flume
Closing property.
2. the utility model can pull down the Lou daughter board at heat and carry out Local treatment.
3. the utility model is advantageous to reduce deflection of the side plate in foaming process.
4. the utility model on the basis of bulk strength is ensured, reduces leakage heat.
In lifting, 5. its impact being subject to is buffered the utility model.
6. two kinds of cooling methods can be made by the utility model, different temperature can adjust out.
7. the utility model 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 present utility model.
Fig. 2 is the enlarged diagram at A in Fig. 1.
Fig. 3 is front view of the present utility model.
Fig. 4 is side view of the present utility model.
Fig. 5 is top view of the present utility model.
Fig. 6 is the internal structure schematic diagram of side plate described in the utility model.
Embodiment
With reference to embodiment and accompanying drawing, the utility model is described further.
Specific kind embodiment of the present utility model, 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
A horizontally arranged daughter board 1213 is done, is connected with each other between 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 connect.
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 vertically set with the surface soldered of lower connecting plate 1214, the second channel-section steel reinforcement 32 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 connects 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 the outer courage flexural deformation caused by low temperature the problem of, the closing of guarantee test groove
Property.It can be moved up and down by the mating connection side plate 121 of pin and chute relative to bottom plate 122.
2. present embodiment can pull down the Lou daughter board at heat and carry 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, can pull down Lou at heat
Daughter board 1213 carry out Local treatment, i.e., daughter board 1213 is pulled down from connection strap 1212.
3. present embodiment is advantageous to reduce deflection of the side plate in foaming process.In foaming process, outer courage can produce
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 liner at the 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, different so as to adjust out
Temperature.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the spirit and scope of the utility model is not departed from
Kind changes and improvements, these changes and improvements are both fallen within claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (10)
1. a kind of low-temperature test groove, including the casing of opening upwards, it is arranged in the insulation of casing upper end and covers, the casing includes
The inner bag of inside and outside suit and outer courage, expanded material is filled 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 are 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
Plate, it is connected with each other by connection strap between daughter board, 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 is provided with the of horizontal direction
One channel-section steel reinforcement, the connection strap surface are 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 connect 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 are 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 include 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 liner at the bottom connection.
9. the low-temperature test groove as any one of claim 1 to 5, it is characterised in that also include being located 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 include being arranged on box house
Test specimen fixed mount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720144393.2U CN206670897U (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 |
|---|---|---|---|
| CN201720144393.2U CN206670897U (en) | 2017-02-17 | 2017-02-17 | A kind of low-temperature test groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206670897U true CN206670897U (en) | 2017-11-24 |
Family
ID=60378405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720144393.2U Expired - Fee Related CN206670897U (en) | 2017-02-17 | 2017-02-17 | A kind of low-temperature test groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206670897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063656A (en) * | 2017-02-17 | 2017-08-18 | 安徽万瑞冷电科技有限公司 | A kind of low-temperature test groove |
-
2017
- 2017-02-17 CN CN201720144393.2U patent/CN206670897U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063656A (en) * | 2017-02-17 | 2017-08-18 | 安徽万瑞冷电科技有限公司 | A kind of low-temperature test groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20190217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |