CN202921281U - Combined screw head sealing piece of upper pipe plate of sulfonator - Google Patents
Combined screw head sealing piece of upper pipe plate of sulfonator Download PDFInfo
- Publication number
- CN202921281U CN202921281U CN 201220603735 CN201220603735U CN202921281U CN 202921281 U CN202921281 U CN 202921281U CN 201220603735 CN201220603735 CN 201220603735 CN 201220603735 U CN201220603735 U CN 201220603735U CN 202921281 U CN202921281 U CN 202921281U
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- CN
- China
- Prior art keywords
- spiral shell
- screw
- press
- sulfonator
- pipe plate
- 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.)
- Expired - Fee Related
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a combined screw head sealing piece of an upper pipe plate of a sulfonator. Screw threads are formed between the upper pipe plate and a press screw. The combined screw head sealing piece is characterized in that a flat teflon pad is used for sealing between the press screw and a nozzle, and an O-shaped ring is arranged on the upper part of the press screw. According to the combined screw head sealing piece of the upper pipe plate of the sulfonator, the O-shaped ring added to the upper part of the screw thread of the sulfonator is used for preventing nicotinic acid in the upper part of the upper pipe plate from entering into an organic material cavity and isolating sulfur trioxide from the screw thread; and meanwhile, the O-shaped ring is firmly pressed by an O-shaped ring press ring on the press screw, so that the O-shaped ring deforms on the sealing part, the sealing reliability is improved, and the press screw is convenient to detach.
Description
Technical field
The utility model relates to the sealing of sulphonator tube sheet, specifically sulphonator upper perforated plate combination spiral shell head seal.
Background technology
Sulphonator is mainly used in sulfur trioxide gas and certain Organic Ingredients haptoreaction generates surfactant, because the reaction between these organic materials and sulfur trioxide is very rapid, production technology generally adopts organic materials to contact with sulfur trioxide gas with the form of film to react.Simultaneously, in order to improve product yield, sulfonation reactor adopts the multitube form more, to increase the contact area of sulfur trioxide gas and Organic Ingredients.
The two way seal of the sulfur trioxide sealing of sulphonator top and organic materials is the multiple point of problem on sulphonator always, and seal failure or screw-thread rust happen occasionally, and have a strong impact on cycle and continuity that xanthator is produced.The upper perforated plate of prior art sulphonator seals two sealing surfaces simultaneously by phenyl tetrafluoride pad, and reliability is not high; In sulfonation system, a small amount of nicotinic acid is accumulated in sulfur trioxide charging meeting, and after long-term the use, nicotinic acid is easy to be penetrated in the screw thread of pressing spiral shell and upper perforated plate; The characteristics of sulphonator production need to often be opened to press spiral shell to change to regulate pad and adjust flow or cleaning organic matter distribution cavity, often cause screw thread to open in production, or open on back tube sheet the problem such as thread damage with larger external force.
The utility model content
The purpose of this utility model is to provide a kind of sulphonator upper perforated plate combination spiral shell head seal.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of sulphonator upper perforated plate combination spiral shell head seal, upper perforated plate have screw thread with pressing between spiral shell, it is characterized in that, press between spiral shell and nozzle by flat phenyl tetrafluoride pad sealing, and pressure spiral shell top is provided with O type circle.
Described pressure spiral shell is provided with O type circle pressure ring, and O type circle pressure ring is pushed down the tetrafluoro pressure ring, and the tetrafluoro pressure ring is pushed down O type circle.
The beneficial effects of the utility model: the utility model increases O type circle on sulphonator screw thread top, and the nicotinic acid that seals upper perforated plate top does not enter into organic materials chamber, isolation sulfur trioxide and screw thread by screw thread; Press simultaneously the O type circle pressure ring on spiral shell to compress O type circle, make O type circle produce deformation in sealing place, improved the reliability of sealing, dismounting presses spiral shell also convenient.
Description of drawings
Fig. 1 is the utility model structural representation.
In figure: 1, upper perforated plate, 2, O type circle pressure ring, 3, the tetrafluoro pressure ring, 4, O type circle, 5, press spiral shell, 6, phenyl tetrafluoride pad, 7, nozzle, 8, screw thread.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
As Fig. 1.A kind of sulphonator upper perforated plate combination spiral shell head seal, upper perforated plate 1 have screw thread 8 with pressing between spiral shell 5, it is characterized in that, press 7, spiral shell 5 and nozzle to be sealed by flat phenyl tetrafluoride pad 6, and pressure spiral shell 5 tops are provided with O type circle 4.Described pressure spiral shell 5 is provided with O type circle pressure ring 2, and O type circle pressure ring 2 is pushed down tetrafluoro pressure ring 3, and tetrafluoro pressure ring 3 is pushed down O type circle 4.At one O type circle of screw thread 8 tops increases, the nicotinic acid that seals upper perforated plate 1 top does not enter into the organic materials chamber by screw thread 8, simultaneously with pressing the O type circle pressure ring 2 on spiral shell 5 to compress O type circle 4, make O type circle 4 produce deformation in sealing place, improve sealing reliability, during dismounting, first pine one circle O type circle pressure ring 2 resets 4 resiliences of O type circle, easily removes and presses spiral shell 5.
Press 7, spiral shell 5 and nozzle to guarantee that by flat phenyl tetrafluoride pad 6 sealings organic materials can not enter in the sulfur trioxide passage, do not need very large moment just can seal.
Claims (2)
1. a sulphonator upper perforated plate makes up spiral shell head seal, between upper perforated plate (1) and pressure spiral shell (5), screw thread (8) is arranged, it is characterized in that, press spiral shell (5) top to be provided with O type circle (4), press between spiral shell (5) and nozzle (7) to be sealed by flat phenyl tetrafluoride pad (6).
2. sulphonator upper perforated plate according to claim 1 makes up spiral shell head seal, it is characterized in that described pressure spiral shell (5) is provided with O type circle pressure ring (2), O type circle pressure ring (2) is pushed down tetrafluoro pressure ring (3), and tetrafluoro pressure ring (3) is pushed down O type circle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603735 CN202921281U (en) | 2012-11-15 | 2012-11-15 | Combined screw head sealing piece of upper pipe plate of sulfonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603735 CN202921281U (en) | 2012-11-15 | 2012-11-15 | Combined screw head sealing piece of upper pipe plate of sulfonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202921281U true CN202921281U (en) | 2013-05-08 |
Family
ID=48211275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603735 Expired - Fee Related CN202921281U (en) | 2012-11-15 | 2012-11-15 | Combined screw head sealing piece of upper pipe plate of sulfonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202921281U (en) |
-
2012
- 2012-11-15 CN CN 201220603735 patent/CN202921281U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |