CN211778961U - Sealing structure for heating hydrofluoric acid - Google Patents
Sealing structure for heating hydrofluoric acid Download PDFInfo
- Publication number
- CN211778961U CN211778961U CN202020094262.XU CN202020094262U CN211778961U CN 211778961 U CN211778961 U CN 211778961U CN 202020094262 U CN202020094262 U CN 202020094262U CN 211778961 U CN211778961 U CN 211778961U
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- cover
- main body
- sealing
- flange
- bearing main
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Abstract
The utility model discloses a sealing structure for heating hydrofluoric acid, which comprises a bearing main body, wherein a sealing end cover is arranged at the opening of the bearing main body, the sealing end cover comprises an inner cover and an outer cover which are mutually buckled, the inner cover is sleeved in the bearing main body and is in interference fit with the bearing main body, one end of the outer wall of the inner cover extends outwards to form a flange, the flange is clamped on the opening end of the bearing main body, a sealing ring is arranged between the flange and the opening end of the bearing main body, a groove is arranged in the middle of the outer wall of the inner cover, and the sealing ring is; the outer cover is in interference fit with the bearing main body, an annular groove is formed in the top surface of the outer cover, a sealing ring is installed in the annular groove, a plurality of flange holes are correspondingly formed in the outer cover and the inner cover, a flange cover is installed on the outer cover and is in contact with the sealing ring in the annular groove, and the bearing main body, the outer cover and the inner cover are all made of polytetrafluoroethylene. The utility model discloses heat-resisting, corrosion-resistant, the security is high and the suitable industrial production of cost.
Description
Technical Field
The utility model relates to an acidizing fluid heating device field, in particular to a seal structure for heating hydrofluoric acid.
Background
In the pickling industry, hydrofluoric acid is mostly used for pickling components, and is heated to improve the pickling efficiency and performance, but the hydrofluoric acid is used as acid with strong corrosivity and has higher safety performance requirements on equipment for heating the hydrofluoric acid. However, the problem that how to design a sealed loading structure with good sealing performance, heat resistance, hydrofluoric acid corrosion resistance, good safety performance and low cost is urgently needed to be solved is that hydrofluoric acid resistant materials are few, most of the materials are high in price and are not suitable for industrial production.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat-resisting, corrosion-resistant and the good seal structure that is used for heating hydrofluoric acid of security performance to solve the problem that above-mentioned background art provided.
In order to realize the above purpose, the technical scheme of the utility model is as follows:
a sealing structure for heating hydrofluoric acid comprises a bearing main body and a sealing end cover, wherein the sealing end cover comprises an inner cover and an outer cover which are mutually buckled, the inner cover is sleeved in the bearing main body and is in interference fit with the bearing main body, one end of the inner cover extends outwards to form a flange, the flange is clamped on an opening end of the bearing main body, a first sealing ring is arranged between the flange and the opening end of the bearing main body, a groove is formed in the middle of the outer wall of the inner cover, and a second sealing ring is arranged in the groove; the enclosing cover and the main part interference fit of holding, open the enclosing cover top surface has the ring channel, installs the third sealing washer in the ring channel, it has several flange hole all to correspond to open on enclosing cover and the interior lid, installs the blind flange on the enclosing cover, and the terminal surface of blind flange contacts with the third sealing washer in the ring channel, main part, enclosing cover and the inner cup of holding all adopt polytetrafluoroethylene to make.
Preferably, the inner wall of the opening end of the bearing main body is provided with an installation groove, and the inner cover is clamped in the installation groove.
Preferably, the outer wall of the opening end of the containing main body is retracted inwards.
Preferably, the outer wall of the containing main body is provided with a deformation joint close to the outer cover.
Preferably, the bearing main body is tubular, and sealing end covers are arranged at two ends of the bearing main body.
Preferably, the first sealing ring, the second sealing ring and the third sealing ring are all made of nylon.
Preferably, the flange hole formed on the inner cover is a blind hole.
Preferably, the outer side surface of the flange is aligned with the outer side surface of the open end of the body.
The utility model has the advantages that:
the container is made of heat-resistant and corrosion-resistant polytetrafluoroethylene, the cost is suitable for industrial production, and the sealing performance of the container can be effectively improved through the matching of the inner cover, the outer cover, the deformation joint and each sealing ring, so that the safety of the device is improved, and the safety of an industrial production environment is ensured.
Drawings
FIG. 1 is an overall view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic structural view of the outer cover of the present invention;
fig. 4 is a schematic structural view of the inner cover of the present invention.
The labels in the figure are: 1-a bearing main body, 11-a mounting groove, 12-a deformation joint, 2-an outer cover, 3-an inner cover, 31-a flange, 41-a first sealing ring, 42-a second sealing ring, 43-a third sealing ring and 5-a flange cover.
Detailed Description
The technical solutions in the present embodiments will be clearly and completely described below with reference to the accompanying drawings in the present embodiments, which, however, should not be construed as limiting the present invention to specific embodiments, but are for explanation and understanding only:
as shown in fig. 1, 2, 3 and 4, the present embodiment provides a sealing structure for heating hydrofluoric acid, including a housing body 1, a sealing end cap and a flange cap 5.
The bearing main body 1 is tubular, and the equal opening in bearing main body 1 both ends, it has mounting groove 11 to hold 1 open end inner wall of dress main body, the inside indentation of 1 open end outer wall of bearing main body, it has movement joint 12 to hold 1 outer wall of dress main body and open near enclosing cover 2 department, and among the acidizing fluid heating process, movement joint 12 can avoid holding 1 and take place the breathing out and warp and lead to the sealing performance to descend because of temperature variation.
The end cover includes two, and two end cover install respectively at the opening part of holding dress main part 1 both ends, and end cover includes inner cup 3 and enclosing cover 2 of mutual lock, 3 joints of inner cup in mounting groove 11 and with hold dress main part 1 inner wall interference fit, 3 outer wall one ends of inner cup outwards extend and form flange 31, flange 31 card is put on holding dress main part 1's opening end, the outside surface of flange 31 aligns with the outside surface of holding dress main part 1 open end to guarantee the installation of enclosing cover 2. The flange 31 closely installs first sealing washer 41 with holding between the dress main part 1 open end, and the outside surface of first sealing washer 41 aligns with the outside surface of holding the dress main part 1 open end, and the enclosing cover 2 of being convenient for is installed on inner cup 3, inner cup 3 outer wall middle part is equipped with the annular recess of round, installs second sealing washer 42 in the recess, second sealing washer 42 in the recess with hold dress main part 1 inner wall contact.
Enclosing cover 2 and the 1 outer wall interference fit of holding dress main part, 2 top surfaces of enclosing cover are opened there is the ring channel, installs third sealing washer 43 in the ring channel, it has several flange hole all to correspond to open on enclosing cover 2 and the inner cup 3, open the flange hole on inner cup 3 and be the blind hole, install flange lid 5 on the enclosing cover 2, flange lid 5 passes through the bolt to be connected with enclosing cover 2 and inner cup 3, and the terminal surface and the third sealing washer 43 contact of flange lid 5, and in this embodiment, the flange lid adopts polytetrafluoroethylene to make.
The bearing body 1, the outer cover 2 and the inner cover 3 are all made of polytetrafluoroethylene, the polytetrafluoroethylene is heat-resistant and can resist hydrofluoric acid corrosion, and the manufacturing cost is relatively low in the manufacturing field of preventing hydrofluoric acid corrosion.
The first seal ring 41, the second seal ring 42 and the third seal ring 43 are all made of nylon, and the seal rings made of nylon have the characteristics of oil resistance, heat resistance, good wear resistance, high compressive strength, good impact resistance and corrosion resistance.
It is to be understood that the above examples are merely illustrative for clarity of description and are not limiting on the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (8)
1. A sealing structure for heating hydrofluoric acid, comprising a containing body (1), characterized in that: the sealing structure is characterized by further comprising a sealing end cover, wherein the sealing end cover comprises an inner cover (3) and an outer cover (2) which are buckled with each other, the inner cover (3) is sleeved in the bearing main body (1) and is in interference fit with the bearing main body (1), one end of the inner cover (3) extends outwards to form a flange (31), the flange (31) is clamped on the opening end of the bearing main body (1), a first sealing ring (41) is arranged between the flange (31) and the opening end of the bearing main body (1), a groove is formed in the middle of the outer wall of the inner cover (3), and a second sealing ring (42) is arranged in the groove; enclosing cover (2) and holding dress main part (1) interference fit, enclosing cover (2) top surface is opened there is the ring channel, installs third sealing washer (43) in the ring channel, it has the several flange hole all to correspond to open on enclosing cover (2) and inner cup (3), installs flange lid (5) on enclosing cover (2), and the terminal surface of flange lid (5) contacts with third sealing washer (43) in the ring channel, hold dress main part (1), enclosing cover (2) and inner cup (3) and all adopt polytetrafluoroethylene to make.
2. A sealing structure for heating hydrofluoric acid according to claim 1, wherein: the inner wall of the opening end of the bearing main body (1) is provided with a mounting groove (11), and the inner cover (3) is connected in the mounting groove (11) in a clamping manner.
3. A sealing structure for heating hydrofluoric acid according to claim 2, wherein: the outer wall of the opening end of the containing body (1) retracts inwards.
4. A sealing structure for heating hydrofluoric acid according to claim 3, wherein: the outer wall of the bearing main body (1) is provided with a deformation joint (12) near the outer cover (2).
5. A sealing structure for heating hydrofluoric acid according to claim 1, wherein: the bearing main body (1) is tubular, and sealing end covers are arranged at two ends of the bearing main body (1).
6. A sealing structure for heating hydrofluoric acid according to claim 1, wherein: the first sealing ring (41), the second sealing ring (42) and the third sealing ring (43) are all made of nylon.
7. A sealing structure for heating hydrofluoric acid according to claim 1, wherein: the flange hole formed on the inner cover (3) is a blind hole.
8. A sealing structure for heating hydrofluoric acid according to claim 1, wherein: the outer side surface of the flange (31) is aligned with the outer side surface of the open end of the body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020094262.XU CN211778961U (en) | 2020-01-16 | 2020-01-16 | Sealing structure for heating hydrofluoric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020094262.XU CN211778961U (en) | 2020-01-16 | 2020-01-16 | Sealing structure for heating hydrofluoric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211778961U true CN211778961U (en) | 2020-10-27 |
Family
ID=72893434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020094262.XU Expired - Fee Related CN211778961U (en) | 2020-01-16 | 2020-01-16 | Sealing structure for heating hydrofluoric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211778961U (en) |
-
2020
- 2020-01-16 CN CN202020094262.XU patent/CN211778961U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20220116 |