CN217355517U - Safety mechanism of medium-high voltage quick-opening structure - Google Patents
Safety mechanism of medium-high voltage quick-opening structure Download PDFInfo
- Publication number
- CN217355517U CN217355517U CN202122815906.7U CN202122815906U CN217355517U CN 217355517 U CN217355517 U CN 217355517U CN 202122815906 U CN202122815906 U CN 202122815906U CN 217355517 U CN217355517 U CN 217355517U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- pin
- opening
- pressure
- equipment
- 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.)
- Active
Links
Images
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model belongs to the switch field, in particular to a safety mechanism with a medium-high pressure quick-opening structure, which is characterized in that a cylinder is communicated with the inside of equipment through a gas delivery pipe, thus the pressure of the cylinder is the same as the pressure in the equipment; a pin is arranged in the cylinder, and positioning plates are arranged on the clamps on the two sides of the cylinder; in a non-working state, the pin falls into the cylinder due to self weight, the opening device can pull the clamp to two sides, and then the flange cover is opened; under operating condition, pressure jacks up the pin, passes the trompil of locating plate, makes the clamp unable removal, even opening device obtains the instruction, also unable pulling clamp. The structure is suitable for medium-pressure and high-pressure equipment allowing trace leakage, can ensure that the quick-opening structure can be opened only under the condition of complete equipment pressure discharge, and prevents the quick-opening structure from being opened due to misoperation and other reasons to cause safety accidents.
Description
Technical Field
The utility model relates to a chemical industry and petrochemical industry field, concretely relates to protection device that opens of equipment is opened soon to this field middling pressure and high pressure.
Background
With the increasing demand of the world for chemical products, the chemical industry and the petrochemical industry develop rapidly. In chemical and petrochemical industries, particularly in reaction equipment, batch operation equipment is adopted in a large amount, and part of the batch operation equipment needs to be opened frequently.
The quick-opening structure of the belt pressing equipment generally comprises a flange, a flat cover, a hoop, a gasket, an opening device and the like. The opening and closing of the device is controlled by the opening device. For equipment with pressure, especially high-pressure equipment, if the quick-opening structure is opened when the pressure in the equipment is not completely released due to misoperation and the like, a very serious safety accident can be caused. In 3.2.16 of TSG 21-2016 safety technology supervision regulations for fixed pressure vessels, a safety interlock should be provided for a quick-opening pressure vessel.
Therefore, a safety mechanism with simple structure and strong reliability is developed, the equipment can be started only after the pressure is released completely, and the safety mechanism has important practical significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safety mechanism of well high pressure quick-open structure. Simple structure, the good reliability ensures that equipment can only be opened after pressure is released completely.
In order to achieve the above purpose, the technical scheme of the utility model is that: a safety mechanism with a medium-high pressure quick-opening structure comprises a cylinder and an opening device, and is characterized in that the cylinder is communicated with the inside of equipment through a gas transmission pipe, so that the pressure in the cylinder is the same as the pressure in the equipment; a pin is arranged in the cylinder, and positioning plates are arranged on the clamps on two sides of the cylinder; the pin is composed of a pin shaft and a pin cap, the length of the pin is larger than that of the cylinder chamber, so that when the pin falls into the bottom of the cylinder, the top of the pin shaft is still positioned in the hole in the top of the cylinder, and the pin shaft is prevented from smoothly entering the hole in the top of the cylinder when the pin moves upwards; the inner diameter of the cylinder is larger than the diameter of the pin cap, the upper surface of the pin cap is provided with a groove, and a gasket is placed to form self-tightening sealing with the inner wall surface of the cylinder; the diameter of the opening on the top of the cylinder and the diameter of the opening of the positioning plate are larger than the diameter of the pin shaft, so that the pin can move up and down freely.
Further, the diameter of the pin cap is determined according to the mass of the pin and the boosting speed of the equipment, and gas can quickly lift the pin to the top of the cylinder when the equipment is boosted.
Further, the pin and the positioning plate should have sufficient strength to ensure that the opening device does not pull the two apart.
Furthermore, the cylinder is divided into an upper cylinder and a lower cylinder which are connected through threads or other openable forms, so that the gasket is convenient to replace.
The utility model provides a safety mechanism of well high pressure quick-open structure is applicable to middling pressure and the high-tension apparatus that allow to have the trace to leak, can ensure only to open the structure soon under the complete circumstances of equipment pressure discharge and just can open, prevents to lead to opening the structure soon because of reasons such as maloperation to open, causes the incident.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings required for the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive changes.
Fig. 1 is a schematic diagram of a safety mechanism when a medium-high voltage quick-opening structure is closed.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a cross-sectional view of the cylinder and the retainer plate when the medium-high pressure quick opening structure is closed.
Fig. 4 is a cross-sectional view of a pin and a shim.
Fig. 5 is a schematic view of a safety mechanism when the medium and high pressure quick opening structure is opened.
Fig. 6 is a top view of fig. 5.
Fig. 7 is a cross-sectional view of the cylinder and the positioning plate when the medium-high pressure quick-opening structure is opened.
Description of reference numerals: the device comprises a gas delivery pipe 1, a lower cylinder 2, an upper cylinder 3, a pin 4, a pin shaft 4-1, a pin cap 4-2, an opening device 5, a telescopic arm 6, a clamp 7, a flange 8, a flat cover 9, a positioning plate 10 and a gasket 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the scope protected by the present invention.
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 7, a safety mechanism of a medium-high pressure quick-opening structure comprises an opening device 5, a telescopic arm 6, a hoop 7, a flange 8 and a flat cover 9, and is characterized in that a cylinder is communicated with the inside of equipment through a gas transmission pipe 1, so that the pressure of the cylinder is the same as the pressure of the equipment; a pin 4 is arranged in the cylinder, and positioning plates 10 are arranged on the hoops 7 on the two sides; in a non-working state, the pin 4 falls into the cylinder due to self weight, the opening device 5 can pull the hoop 7 to two sides, and then the flange cover 8 is opened; under operating condition, pressure jacks up pin 4, passes the trompil of locating plate 10, makes the clamp unable removal, even opening device 5 obtains the instruction, also unable pulling clamp 7, ensures that the incident can not appear.
The upper surface of the pin cap 4-2 is provided with a groove, and a gasket 11 is placed to form self-tightening sealing with the inner wall surface of the cylinder.
The diameter of the pin cap 4-2 is determined according to the mass of the pin 4 and the pressure boosting speed of the equipment, and the pin 4 can be quickly jacked to the top of the cylinder by gas when the equipment is boosted.
The pin 4 and the positioning plate 10 should have sufficient strength to ensure that the opening device 5 does not pull the two apart. The diameter of the pin is usually 20-40 mm, and the thickness of the positioning plate is usually 15-30 mm.
The inner diameter of the cylinder is slightly larger than the diameter of the pin cap 4-2. The diameter difference between the two should be determined by calculation based on the mass of the pin 4, the pressure increase speed and the bottom area of the pin cap 4-2. The diameter of the opening at the top of the cylinder and the opening of the positioning plate 10 is slightly larger than that of the pin shaft 4-1 so as to ensure that the pin 4 can freely move up and down. The diameter of the opening is usually 2mm to 4mm larger than the diameter of the pin shaft 4-1.
The cylinder divide into upper cylinder 3 and lower cylinder 2 two parts, and both pass through screw thread or other openable type connection, conveniently change gasket 11. The thickness of the cylinder should be determined by calculation based on the pressure of the equipment. The gasket 11 is usually an octagonal gasket or the like suitable for high pressure conditions.
The length of the pin 4 is larger than that of the cylinder chamber, so that when the pin 4 falls into the bottom of the cylinder, the top of the pin shaft 4-1 is still located in the hole in the top of the cylinder, and the pin shaft 4-1 is prevented from smoothly entering the hole in the top of the cylinder when the pin 4 moves upwards.
The material of the gas transmission pipe 1, the cylinder and the pin 4 is consistent with that of the equipment body, and the material of the positioning plate 10 can be ordinary carbon steel (such as Q345R).
The structure can cause trace gas to leak from the gap between the pin 4 and the cylinder in the pressure boosting and pressure releasing stages of the equipment, so that the structure is suitable for medium-pressure and high-pressure equipment allowing trace leakage.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the scope of the present invention.
Claims (5)
1. A safety mechanism with a medium-high pressure quick-opening structure comprises a cylinder and an opening device (5), and is characterized in that the cylinder is communicated with the inside of equipment through a gas transmission pipe (1), so that the pressure of the cylinder is the same as the pressure in the equipment; a pin (4) is arranged in the cylinder, and positioning plates (10) are arranged on the hoops (7) on the two sides of the cylinder; the pin (4) consists of a pin shaft (4-1) and a pin cap (4-2), and the length of the pin (4) is larger than that of the cylinder chamber, so that when the pin (4) falls into the bottom of the cylinder, the top of the pin shaft (4-1) is still positioned in the opening at the top of the cylinder, and the pin shaft (4-1) is prevented from smoothly entering the opening at the top of the cylinder when the pin (4) moves upwards; the inner diameter of the cylinder is larger than the diameter of the pin cap (4-2), the upper surface of the pin cap (4-2) is provided with a groove, and a gasket (11) is placed to form self-tightening sealing with the inner wall surface of the cylinder; the diameters of the opening at the top of the cylinder and the opening of the positioning plate (10) are larger than the diameter of the pin shaft (4-1) so as to ensure that the pin (4) can move up and down freely.
2. The safety mechanism of a medium-high pressure quick-opening structure as claimed in claim 1, characterized in that the diameter of the pin cap (4-2) is determined according to the mass of the pin (4) and the pressure rise speed of the equipment, so as to ensure that the gas can quickly lift the pin (4) to the top of the cylinder when the equipment is boosted.
3. A safety mechanism with a medium-high pressure quick-opening structure as claimed in claim 1, characterized in that the pin (4) and the retaining plate (10) have sufficient strength to ensure that the opening means (5) does not break the two.
4. The safety mechanism with the medium-high pressure quick-opening structure as claimed in claim 1, 2 or 3, wherein the cylinder is divided into an upper cylinder (3) and a lower cylinder (2), and the upper cylinder and the lower cylinder are connected through threads, so that the gasket (11) can be replaced conveniently.
5. The safety mechanism with the medium-high pressure quick-opening structure as claimed in claim 4, wherein the cylinder is divided into an upper cylinder (3) and a lower cylinder (2), and the upper cylinder and the lower cylinder are connected in an openable manner, so that the gasket (11) can be conveniently replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122815906.7U CN217355517U (en) | 2021-11-17 | 2021-11-17 | Safety mechanism of medium-high voltage quick-opening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122815906.7U CN217355517U (en) | 2021-11-17 | 2021-11-17 | Safety mechanism of medium-high voltage quick-opening structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217355517U true CN217355517U (en) | 2022-09-02 |
Family
ID=83009480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122815906.7U Active CN217355517U (en) | 2021-11-17 | 2021-11-17 | Safety mechanism of medium-high voltage quick-opening structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217355517U (en) |
-
2021
- 2021-11-17 CN CN202122815906.7U patent/CN217355517U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102426142B (en) | Mechanics experiment system apparatus and experimental method for external pressure deformation of tubing | |
| US3819479A (en) | Supporting and sealing device applicable to rotary seal plugs in nuclear reactor shield slabs | |
| CN217355517U (en) | Safety mechanism of medium-high voltage quick-opening structure | |
| CN205424267U (en) | Gas piping presses plugging device in area | |
| CN217003052U (en) | Leakage-free safety mechanism of quick-opening structure | |
| CN101649946A (en) | Method for atmospheric leakage stopping | |
| CN206146592U (en) | A auxiliary locking device for valve compression test | |
| CN106838538B (en) | A kind of Pressurized plugging clamp and application method for blind flange end face sand holes | |
| CN101706028A (en) | Plugging method | |
| CN2450478Y (en) | Reusable relief valve | |
| CN205175833U (en) | Detecting instrument pressure resistance test installation in submarine pipeline | |
| CN208642597U (en) | A kind of safety-type polymeric kettle emergency stopping system | |
| CN107763049A (en) | A kind of reactor pressure vessel hydraulic nut | |
| CN201326736Y (en) | Improved safety interlock device for quick-open doors | |
| CN202350992U (en) | Device for section helium spectrum leakage detecting for power reactor irradiated fuel rod | |
| CN206694734U (en) | A kind of Pressurized plugging clamp for blind flange end face sand holes | |
| CN105759388A (en) | High-pressure container peep device | |
| CN218863899U (en) | Safety early warning device with limit switch for gas drainer | |
| CN205287688U (en) | Open extraction cauldron fast | |
| CN205581376U (en) | High pressure vessel peeies at device | |
| CN212722026U (en) | Large-diameter butt-welding type butterfly valve pressure test clamp | |
| CN218444358U (en) | Emergency release detection device | |
| CN208606969U (en) | A kind of safety valve testing table and detector for safety valve | |
| CN212775592U (en) | Pressure-equalizing blow-off valve pressing device | |
| CN216200442U (en) | Special air-conducting plug for high-temperature and high-pressure container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |