CN204477298U - Large-scale vacuum tank and jar opening sealer - Google Patents
Large-scale vacuum tank and jar opening sealer Download PDFInfo
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- CN204477298U CN204477298U CN201420867091.4U CN201420867091U CN204477298U CN 204477298 U CN204477298 U CN 204477298U CN 201420867091 U CN201420867091 U CN 201420867091U CN 204477298 U CN204477298 U CN 204477298U
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Abstract
The utility model discloses a kind of large-scale vacuum tank and jar opening sealer, described jar opening sealer, be applied to the tank mouth of tank body, described tank mouth comprises between primary sealing area and secondary sealing area, be arranged in parallel between described primary sealing area and described secondary sealing area, described sealing configuration comprises press strip, lip-type packing and O-ring seals, described press strip is fixedly installed on described primary sealing area or described secondary sealing area, described lip-type packing and O-ring seals are fixedly installed on described press strip, and folder is against between described primary sealing area and described secondary sealing area.The utility model adopts the structure of lip-type packing and O-ring seals fitted seal, easy for installation, make and maintenance cost lower, and sealing is reliably, and working life is longer.
Description
Technical field
The utility model relates to large-scale vacuum tank, especially relevant with the structure of the jar opening sealer of large-scale vacuum tank.
Background technique
The square vacuum drying tank of transformation method drying equipment and Kerosene Vapour-Phase Drying Device, due to bulky (50 ~ 700m3), must adopt the mode of on-the-spot welding to make.The sealing surface of dry can tank mouth cannot carry out integrated type machining, employing be segmentation processing, the mode of on-the-spot welding makes.Soldering group on time degree of accuracy, welding stress, welding deformation and sealing surface itself the factors such as straightness impact under, the planeness after sealing surface welding is difficult to ensure, the impact of this sealability for seal arrangement is all very large.And the requirement of vacuum drying tank to sealing is very high, leak-down rate must control in a very little index.The leakage rate of vacuum tank, what have the greatest impact is exactly the effect of jar opening sealer.In addition, under negative pressure state, the pressure of up to a hundred tons that tank door produces is applied on seal ring, and this proposes higher requirement of withstand voltage to seal arrangement.
Jar opening sealer in the past has single O shape ring type, several seal arrangement such as single abnormity circle, single lip ring type, double-lipped ring type etc. usually.Due to the structural feature of self, all there is short, the defect such as complex structure, difficulty of processing are large, construction requirement is high, sealing reliability is poor in working life in this several seal arrangement.Below describe respectively.
As shown in Figure 1a, structure is simple, and sealing effect is better for the structure of single O shape ring type seal arrangement, but the atmospheric pressure major part of up to a hundred tons that rear tank door of finding time bears is born by seal ring, and the easy pressure break of seal ring, is applicable to small size vacuum room, be used on large-scale vacuum dry can, the life-span is extremely short.
As shown in Figure 1 b, similar to single O shape ring type seal arrangement, owing to being hollow structure, the life-span is slightly long, but complex-shaped, needs die sinking to customize for the structure of single special-shaped ring type seal arrangement.
As illustrated in figure 1 c, close with single special-shaped ring type seal arrangement, higher to the planarity requirements of sealing surface, press strip is complex-shaped, and be difficult to processing, seal ring is complex-shaped equally, needs die sinking to customize for the structure of single lip ring type seal arrangement.
The structure of double-lipped ring type seal arrangement as shown in Figure 1 d, adopts two seals circle, better than single lip circle sealing effect, and compression capability is stronger, but sealing surface planarity requirements is high, seal ring press strip processed complex, and slightly deviation sealing effect is just difficult to ensure.
The structure of two O-ring seals seal arrangement as shown in fig. le, seal with single O shape ring type and also have similar part, good sealing effect, voltage endurance capability is extremely strong, but two O-ring seals seal arrangement is generally applicable to large-scale vacuum tank, need larger pretightening force size two seal rings could be fitted with sealing surface completely, reach good sealing effect, the oil cylinder group number for lock sealing face is just relatively many.
In sum, the seal arrangement bearing capacity of wall scroll seal ring is little, is applicable to small size vacuum room, then can not normally use for large-scale vacuum room.Two O shape seal arrangement voltage endurance capability is good, good sealing effect, can be used for large-scale vacuum room, but need larger pretightening force could by size two seal rings completely and sealing surface fit, reach good sealing effect, the oil cylinder group number for lock sealing face is just relatively many, and oil cylinder group number is more, its synchronism is more difficult to ensure card, and the reliability of corresponding seal arrangement is just difficult to ensure.
Model utility content
For problems of the prior art, the purpose of this utility model for provide a kind of easy for installation, fabricating cost is low, good sealing effect and the jar opening sealer of long service life and use the large-scale vacuum tank of sealing device.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of jar opening sealer, be applied to the tank mouth of tank body, described tank mouth comprises primary sealing area and secondary sealing area, be arranged in parallel between described primary sealing area and described secondary sealing area, described jar opening sealer comprises press strip, lip-type packing and O-ring seals, described press strip is fixedly installed on described primary sealing area or described secondary sealing area, described lip-type packing and O-ring seals are fixedly installed on described press strip, and folder is against between described primary sealing area and described secondary sealing area.
Preferably, described lip-type packing is arranged at the outside of described O-ring seals.
Preferably, the bump of described lip-type packing extends laterally.
Preferably, described press strip is mounted by means of bolts on described primary sealing area or described secondary sealing area.
Preferably, described primary sealing area is arranged on the body structure of described tank body, and described secondary sealing area is arranged on the cover body structure of described tank body, and described press strip is arranged on described primary sealing area.
For achieving the above object, the utility model also provides following technological scheme:
A kind of large-scale vacuum tank, comprise tank body, the tank mouth of described tank body is tightly connected a lid, also comprises jar opening sealer as above, and described jar opening sealer is arranged on described tank mouth.
The beneficial effects of the utility model are, compared with prior art, the utility model adopts the structure of lip-type packing and O-ring seals fitted seal to the utility model, easy for installation, make and maintenance cost lower, and sealing is reliably, and working life is longer.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 a is the structural representation of single O shape ring type seal arrangement;
Fig. 1 b is the structural representation of single special-shaped ring type seal arrangement;
Fig. 1 c is the structural representation of single lip ring type seal arrangement;
Fig. 1 d is the structural representation of double-lipped ring type seal arrangement;
Fig. 1 e is the structural representation of two O-ring seals seal arrangement;
Fig. 2 is the structural representation of jar opening sealer of the present utility model.
Embodiment
The exemplary embodiments embodying the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various changes in different embodiments, it neither departs from scope of the present utility model, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the utility model.
Large-scale vacuum tank of the present utility model is compared with existing large-scale vacuum tank, and the main distinction is the structure of jar opening sealer wherein, and other structures do not repeat them here.
As shown in Figure 2, jar opening sealer of the present utility model is applied to the tank mouth of large-scale vacuum tank, and the tank body 1 of large-scale vacuum tank is provided with tank body sealing surface 11, and tank body sealing surface 11 welds with the tank mouth flange tightness of tank body 1, and surface is provided with tapped hole.Large-scale vacuum tank tank door 2 is provided with tank door sealing face 21, and tank door sealing face 21 is welded with tank door 2 flange tightness, is parallel to each other between tank body sealing surface 11 and tank door sealing face 21.
In the utility model, this jar opening sealer also comprises press strip 3, lip-type packing 4 and O-ring seals 5.Wherein, press strip 3 is fixedly mounted on tank body sealing surface 11 by the tapped hole on bolt and tank body sealing surface 11; Lip-type packing 4 and O-ring seals 5 are fixedly installed on press strip 3, and folder is against between tank body sealing surface 11 and tank door sealing face 21.In addition, lip-type packing 4 is arranged at the outside of O-ring seals 5, and the bump 41 of lip-type packing 4 extends laterally.
When making large-scale vacuum tank, the plane of first segmentation processing tank body sealing surface 11, tank door sealing face 21 and press strip 3, each part section length is identical.Again press strip 3 and tank body sealing surface 11 are joined auger shell keyhole, then bore pressure testing hole, fix with socket head screw after joining brill, one_to_one corresponding carries out mark, takes mixed when preventing from installing.After transporting to erecting bed, tank body sealing surface 11 and tank door sealing face 21 are pressed corresponding order and tank body 1 and tank door 2 assembly welding respectively, and need the deviations from planarity≤3mm ensureing tank body sealing surface 11 and tank door sealing face 21 during assembly welding, joint opens cut through welding.Butt weld is polished flat by postwelding, oilstone polishing.In pressure testing hole, place connects 0.6MPa pressurized air, and soap solution check weld joint air-tight, after confirming that tightness is qualified, can install two seal rings 4,5.Seal ring is twice, and inner side is O RunddichtringO 5, and outside is lip-type packing 4, is fixed by press strip 3 and socket head screw.
The beneficial effect adopting the technical solution of the utility model to reach is: adopt an O-ring seals 5 and a lip-type packing 4 as Sealing, first compared to double-lipped seal ring, reduce the fabricating cost of seal ring, maintenance cost is lower.And corresponding sealing surface form relative simplicity, difficulty of processing reduces, and fabricating cost reduces.
Secondly, the utility model seal arrangement adopts the unique design of an O-ring seals 5 and a lip-type packing 4, O RunddichtringO 5 is inside tank, lip-type packing 4 is outside tank, in the vacuum of large-scale vacuum tank, the bump 41 leaning against the lip-type packing 4 in outside, under atmospheric pressure effect, is adjacent to rapidly tank door sealing face 21, and along with the degree of vacuum raising in large-scale vacuum tank, lip-type packing 4 is tighter with the laminating degree in tank door sealing face 21.So the seal arrangement of this structural type does not need to need powerful oil cylinder as two O-ring seals seal arrangement, and less pretightening force can form satisfactory sealing effect to tank door 2.Seal arrangement reliability is higher, and cost is lower.And pressure is little suffered by two seal rings 4,5, effectively can improve the working life of two seal rings 4,5, comprehensive benefit is obvious.
The technical solution of the utility model is disclosed as above by preferred embodiment.The change that those skilled in the art do when should recognize the scope and spirit of the present utility model disclosed in the claim do not departed from appended by the utility model and retouching, within the protection domain all belonging to claim of the present utility model.
Claims (6)
1. a jar opening sealer, be applied to the tank mouth of tank body, described tank mouth comprises primary sealing area and secondary sealing area, be arranged in parallel between described primary sealing area and described secondary sealing area, it is characterized in that, described jar opening sealer comprises press strip, lip-type packing and O-ring seals, described press strip is fixedly installed on described primary sealing area or described secondary sealing area, described lip-type packing and O-ring seals are fixedly installed on described press strip, and folder is against between described primary sealing area and described secondary sealing area.
2. jar opening sealer as claimed in claim 1, it is characterized in that, described lip-type packing is arranged at the outside of described O-ring seals.
3. jar opening sealer as claimed in claim 1, it is characterized in that, the bump of described lip-type packing extends laterally.
4. jar opening sealer as claimed in claim 1, it is characterized in that, described press strip is mounted by means of bolts on described primary sealing area or described secondary sealing area.
5. the jar opening sealer as described in as arbitrary in claim 1-4, it is characterized in that, described primary sealing area is arranged on the body structure of described tank body, and described secondary sealing area is arranged on the cover body structure of described tank body, and described press strip is arranged on described primary sealing area.
6. a large-scale vacuum tank, comprises tank body, and the tank mouth of described tank body is tightly connected a lid, it is characterized in that, also comprise as arbitrary in claim 1-5 as described in jar opening sealer, described jar opening sealer is arranged on described tank mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867091.4U CN204477298U (en) | 2014-12-30 | 2014-12-30 | Large-scale vacuum tank and jar opening sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420867091.4U CN204477298U (en) | 2014-12-30 | 2014-12-30 | Large-scale vacuum tank and jar opening sealer |
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| Publication Number | Publication Date |
|---|---|
| CN204477298U true CN204477298U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420867091.4U Active CN204477298U (en) | 2014-12-30 | 2014-12-30 | Large-scale vacuum tank and jar opening sealer |
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| CN (1) | CN204477298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333144A (en) * | 2015-11-27 | 2016-02-17 | 深圳市信宇人科技有限公司 | Flush door sealing method, door sealing structure and high-vacuum sealing ring |
-
2014
- 2014-12-30 CN CN201420867091.4U patent/CN204477298U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333144A (en) * | 2015-11-27 | 2016-02-17 | 深圳市信宇人科技有限公司 | Flush door sealing method, door sealing structure and high-vacuum sealing ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528478 Guangdong city of Zhongshan Province Town Ring Road No. 27. Patentee after: Zhongshan triumphant vacuum Polytron Technologies Inc Address before: 528478 Guangdong city of Zhongshan province Henglan Town Yongfeng Industrial Zone Patentee before: Zhongshan Kaixuan Vacuum Technology Project Co., Ltd. |
|
| CP03 | Change of name, title or address |