CN111452094B - Operation method under working condition with pressure difference - Google Patents
Operation method under working condition with pressure difference Download PDFInfo
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- CN111452094B CN111452094B CN202010222677.5A CN202010222677A CN111452094B CN 111452094 B CN111452094 B CN 111452094B CN 202010222677 A CN202010222677 A CN 202010222677A CN 111452094 B CN111452094 B CN 111452094B
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- sealing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J21/00—Chambers provided with manipulation devices
- B25J21/02—Glove-boxes, i.e. chambers in which manipulations are performed by the human hands in gloves built into the chamber walls; Gloves therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
- F16J15/48—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Robotics (AREA)
- Physics & Mathematics (AREA)
- Architecture (AREA)
- Fluid Mechanics (AREA)
- Manipulator (AREA)
Abstract
The invention discloses an operation method under the working condition of pressure difference, belongs to the environment with the working condition of pressure difference, and comprises the technical fields of production, design, research and development and instruments and meters. The sealing device comprises a cavity, a stress layer, a sealing layer and a sealing fitting. The invention can be simply used for operation in the working condition with pressure difference, does not need a complex structure, greatly reduces the equipment cost, provides a more convenient and flexible operation scheme, greatly saves the time and the operation skill of operators, can be widely applied to various working conditions with pressure difference, has stronger universality and low maintenance cost, can be widely applied to various working conditions with pressure difference, only needs to replace corresponding parts when a problem occurs, reduces the professional requirement of the operators, and can be operated by ordinary personnel through simple training.
Description
Technical Field
The invention relates to an operation method under the working condition of pressure difference, which belongs to the environment with the working condition of pressure difference, and comprises the technical fields of production, design, research and development and instruments and meters.
Background
When the operation is carried out under the environment with the internal and external pressure difference, a simple scheme used under the working condition is not available on the market, a mechanical arm is designed to operate most of the time, the mechanical arm is connected with the inside of the glove box through a mechanical structure on the outer side, so that the operation is very complicated and expensive, tens of thousands or even hundreds of thousands of the gloves are connected according to the complexity of movement, for example, a vacuum glove box is used, an operator wants to operate the inside of the vacuum glove box, a certain amount of inert gas must be filled into the glove box firstly, when the internal and external pressure differences of the vacuum glove box are basically consistent, a valve at the glove can be opened, otherwise, the glove is stressed to expand and finally break, the experiment fails, and in most cases, a mechanical arm needs to be customized to operate. If the operation can be directly carried out by hands, the flexibility is very high, and the complexity of the operation process is greatly reduced.
Disclosure of Invention
The invention adopts the following technical scheme to realize aiming at the problems mentioned in the background technology:
the operation method under the working condition of pressure difference comprises a cavity, a stress layer, a sealing layer and a sealing fitting, and comprises the following operation steps:
s1, the sealing layer is sleeved in the stress layer, the stress layer and the sealing layer are integrally formed, and the stress layer is arranged in a cavity with the pressure of 10 -4 pa to 0.1Mpa, and the sealing layer is arranged at the side of the cavity with the pressure of 0.1 to 0.2 Mpa;
s2, the sealing fitting is used for sealing the sealing layer and the cavity;
s3, work as when the pressure in the cavity is higher than the cavity is external, when being 0.1 ~ 0.2Mpa pressure state in the cavity promptly, stress layer and sealing layer receive the cavity internal pressure and toward outer inflation simultaneously, this moment stress layer adopts high tensile, high anti-cutting material, and the sealing layer uses sealed material, and the stress layer of high tensile, high anti-cutting material can bear 0.1 ~ 0.2Mpa, and operating personnel only need be pushed into toward the inside of 0.1 ~ 0.2Mpa by high pressure 0.1 ~ 0.2Mpa stress layer and sealing layer that props outward this moment, hard, can carry out corresponding operation in the cavity.
S4, when the cavity internal pressure is less than outside the cavity, when being the vacuum state in the cavity promptly, stress layer and sealing layer receive the extrusion in the cavity of cavity external pressure simultaneously, stress layer adopts high tensile, high anti-cutting material this moment, the sealing layer uses sealed material, high tensile, the stress layer of high anti-cutting material can bear 0.1 ~ 0.2 Mpa' S high pressure, the sealed material of sealing layer is under the pressure, the atress warp, can tightly laminate stress layer, and with the whole even distribution of the power that receives on stress layer, operating personnel only need insert the hand at this moment in the sealing layer can carry out corresponding operation in the cavity.
As a preferable example, the connection mode between the stress layer and the cavity adopts one of the connection modes of screw fastening and welding.
As a preferred example, the sealing means between the sealing fitting and the sealing layer is one of an O-ring seal, a gasket seal, an ISO flange seal, a CF flange seal, and a KF flange seal.
As a preferred example, the sealing fitting seals between the cavity and the sealing layer in an O-ring seal.
As a preferred example, the force-bearing layer and the sealing layer are each in one of a glove shape, a cylindrical shape, and a two-finger shape.
As a preferred example, the stress layer and the sealant layer are both glove-shaped.
Preferably, the glove-shaped material used for the force-bearing layer is one of a cut-resistant stainless steel material and a carbon fiber material.
Preferably, the glove-shaped material used for the sealing layer is one of latex material and PVC material, and the sealing layer is required to have a gas-liquid sealing function.
The invention has the beneficial effects that: the invention can be simply used for operation in the working condition with pressure difference, does not need a complex structure, greatly reduces the equipment cost, provides a more convenient and flexible operation scheme, greatly saves the time and the operation skill of operators, can be widely applied to various working conditions with pressure difference, has stronger universality and low maintenance cost, can be widely applied to various working conditions with pressure difference, only needs to replace corresponding parts when a problem occurs, reduces the professional requirement of the operators, and can be operated by ordinary personnel through simple training.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the stress layer, the sealing layer and the sealing fitting in the invention.
In the figure: cavity 1, stress layer 2, sealing layer 3, seal assembly 4.
Detailed Description
In order to make the technical means, the technical features, the technical purpose and the technical effects of the invention easier to understand, the invention is further described in the following combined with the specific drawings.
Example one
As shown in fig. 1 and fig. 2, an operation method under a differential pressure condition comprises a cavity 1, a stress layer 2, a sealing layer 3 and a sealing fitting 4, and the operation steps are as follows:
s1, the sealing layer 3 is sleeved in the stress layer 2, and the stress layer 2 and the sealing layer 3IThe body is formed, the stress layer 2 is arranged in the cavity 1 with the pressure of 10 -4 pa, sealing layer 3 is set on the side of cavity 1 with pressure 0.1 Mpa;
s2, the sealing fitting 4 is used for sealing the sealing layer 3 and the cavity 1;
s3, when the pressure is higher than outside the cavity 1 in the cavity 1, be when the pressure state of 0.1Mpa in the cavity 1 promptly, stress layer 2 and sealing layer 3 receive 1 internal pressure of cavity and toward the outer inflation simultaneously, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, change into high tensile, stress layer 2 of high anti-cutting material can bear the high pressure of 0.1Mpa, operating personnel only need by high pressure 0.1Mpa toward the stress layer 2 and the sealing layer 3 of outrigger this moment, the inside propulsion of 0.1Mpa toward high pressure hard, can carry out corresponding operation in the cavity 1.
S4, when cavity 1 internal pressure is less than outside the cavity 1, be the vacuum state in the cavity 1 promptly, stress layer 2 and sealing layer 3 receive 1 external pressure of cavity simultaneously and extrude in to cavity 1, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, high tensile, stress layer 2 of high anti-cutting material can bear 0.1Mpa 'S high pressure, sealing layer 3' S sealed material is under the pressure effect, the atress warp, can tightly laminate stress layer 2, and with the whole even distribution of the power that receives on stress layer 2, operating personnel only need insert the hand and can carry out corresponding operation in the sealing layer 3 to cavity 1 this moment.
The stress layer 2 and the cavity 1 are connected by screw fastening.
The sealing fitting 4 seals between the cavity 1 and the sealing layer 3 in an O-ring sealing mode.
The stress layer 2 and the sealing layer 3 are both in the shape of gloves.
The glove-shaped material adopted by the stress layer 2 is anti-cutting stainless steel material.
The glove-shaped material adopted by the sealing layer 3 is a rubber material, and the sealing layer 3 needs to have a gas-liquid sealing function.
Strength testing method performed in accordance with example one
Using commercially available vacuum glove boxes, e.g. Weger, mikero, etc. large brand vacuumThe glove box has a standard atmospheric pressure of 0.1Mpa outside the cavity, and is vacuumized through the customized thickness of the glove box, and the vacuum degree can reach 1 × 10 -2 pa, the pressure difference between the inside and the outside of the glove box is 0.1Mpa-0.01pa =99999.9999pa, the size of the glove opening of the glove box is phi 220mm, and the force required to be born by the glove is 3799.39999N according to the pressure formula F =ΔP · S =3799.39999N, when a general user uses the glove opening and the cavity 1, the glove opening and the cavity 1 need to be vacuumized, otherwise the general rubber glove cannot bear the large force at all, after the glove of the stress layer 2 is added, the stress layer 2 is a stainless steel cut-proof glove, and the sealing layer 3 is a thickened Buna rubber glove, so that the force borne by the glove of the sealing layer 3 is distributed on the stress layer 2 uniformly, and the stress layer 2 can bear the 3799.39999N force generated by the pressure difference between the inside and the outside through the experiment, and therefore the user can directly operate the glove box by using hands.
Example two
As shown in fig. 1 and fig. 2, an operation method under a differential pressure condition comprises a cavity 1, a stress layer 2, a sealing layer 3 and a sealing fitting 4, and the operation steps are as follows:
s1, a sealing layer 3 is sleeved inside a stress layer 2, the stress layer 2 and the sealing layer 3 are integrally formed, and the stress layer 2 is arranged in a cavity 1 and has the pressure of 10 -2 pa, sealing layer 3 is set on the side of cavity 1 with pressure 0.1 Mpa;
s2, the sealing fitting 4 is used for sealing the sealing layer 3 and the cavity 1;
s3, when the pressure is higher than outside the cavity 1 in the cavity 1, be when the pressure state of 0.1Mpa in the cavity 1 promptly, stress layer 2 and sealing layer 3 receive 1 internal pressure of cavity and toward the outer inflation simultaneously, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, change into high tensile, stress layer 2 of high anti-cutting material can bear the high pressure of 0.1Mpa, operating personnel only need by high pressure 0.1Mpa toward the stress layer 2 and the sealing layer 3 of outrigger this moment, the inside propulsion of 0.1Mpa toward high pressure hard, can carry out corresponding operation in the cavity 1.
S4, when cavity 1 internal pressure is less than outside the cavity 1, be the vacuum state in the cavity 1 promptly, stress layer 2 and sealing layer 3 receive 1 external pressure of cavity simultaneously and extrude in to cavity 1, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, high tensile, stress layer 2 of high anti-cutting material can bear 0.1Mpa 'S high pressure, sealing layer 3' S sealed material is under the pressure effect, the atress warp, can tightly laminate stress layer 2, and with the whole even distribution of the power that receives on stress layer 2, operating personnel only need insert the hand and can carry out corresponding operation in the sealing layer 3 to cavity 1 this moment.
The stress layer 2 and the cavity 1 are connected by screw fastening.
The sealing fitting 4 seals between the cavity 1 and the sealing layer 3 in an O-ring seal.
The stress layer 2 and the sealing layer 3 are both in the shape of gloves.
The glove-shaped material adopted by the stress layer 2 is a cutting-resistant stainless steel material.
The glove-shaped material adopted by the sealing layer 3 is a rubber material, and the sealing layer 3 needs to have a gas-liquid sealing function.
Strength testing method performed for example two
Using a common vacuum glove box on the market, such as a large-brand vacuum glove box like Weige, mikeluona, etc., wherein the outside of the cavity is a standard atmospheric pressure of 0.1Mpa, the inside of the glove box is vacuumized through the customized thickness of the glove box, and the vacuum degree can reach 1 × 10 -2 pa, the pressure difference between the inside and the outside of the glove box is 0.1Mpa-0.01pa =99999.99pa, the size of the glove opening of the glove box is a standard size phi 220mm, according to the pressure formula F =DELTAP · S =3799.39962N, the force required to be borne by the glove is 3799.39962N, when a common user uses the glove box, the glove opening and the cavity 1 need to be vacuumized, otherwise, the common rubber glove cannot bear the large force at all, after the glove of the stress layer is added, the stress layer 2 is a stainless steel cut-proof glove, the sealing layer 3 is a thickened nitrile rubber glove, the force borne by the glove of the sealing layer 3 is distributed on the stress layer 2 uniformly, and the stress layer 2 can bear the force of 3799.962 39N generated by the pressure difference between the inside and the outside through the experiment, so that the user can directly operate the glove box by hands.
EXAMPLE III
As shown in fig. 1 and fig. 2, an operation method under a differential pressure condition comprises a cavity 1, a stress layer 2, a sealing layer 3 and a sealing fitting 4, and the operation steps are as follows:
s1, a sealing layer 3 is sleeved in a stress layer 2, the stress layer 2 and the sealing layer 3 are integrally formed, the stress layer 2 is arranged on one side of a cavity 1 with the pressure of 0.1MPa, and the sealing layer 3 is arranged on one side of the cavity 1 with the pressure of 0.2 MPa;
s2, the sealing fitting 4 is used for sealing the sealing layer 3 and the cavity 1;
s3, when cavity 1 internal pressure is higher than outside the cavity 1, be in the cavity 1 when being 0.2Mpa pressure state promptly, stress layer 2 and sealing layer 3 receive 1 internal pressure of cavity and toward outer inflation simultaneously, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, high tensile, stress layer 2 of high anti-cutting material can bear 0.2 Mpa' S high pressure, operating personnel only need by high pressure 0.2Mpa toward the stress layer 2 and the sealing layer 3 of outrigger this moment, the inside propulsion of 0.2Mpa toward high pressure hard, can carry out corresponding operation in the cavity 1.
S4, when cavity 1 internal pressure is less than outside the cavity 1, be the vacuum state in the cavity 1 promptly, stress layer 2 and sealing layer 3 receive 1 external pressure of cavity simultaneously and extrude in to cavity 1, stress layer 2 adopts high tensile this moment, high anti-cutting material, sealing layer 3 uses sealed material, high tensile, stress layer 2 of high anti-cutting material can bear 0.2Mpa 'S high pressure, sealing layer 3' S sealed material is under the pressure effect, the atress warp, can tightly laminate stress layer 2, and with the whole even distribution of the power that receives on stress layer 2, operating personnel only need insert the hand and can carry out corresponding operation in the sealing layer 3 this moment in to cavity 1.
The stress layer 2 and the cavity 1 are connected by screw fastening.
The sealing fitting 4 seals between the cavity 1 and the sealing layer 3 in an O-ring seal.
The stress layer 2 and the sealing layer 3 are both in the shape of gloves.
The glove-shaped material adopted by the stress layer 2 is anti-cutting stainless steel material.
The glove-shaped material adopted by the sealing layer 3 is a rubber material, and the sealing layer 3 needs to have a gas-liquid sealing function.
Strength test method for example three
The method comprises the steps of using a common vacuum glove box on the market, such as a large-brand vacuum glove box of Weige, mikeluona and the like, wherein standard atmospheric pressure is 0.1Mpa outside a cavity, injecting inert gas into the glove box through the thickness of the customized glove box, wherein the pressure value can reach 0.2Mpa, the pressure difference between the inside and the outside of the glove box is 0.2Mpa-0.1Mpa, the glove opening size of the glove box is phi 220mm, the force required to bear the glove is 3799.4N according to a pressure formula F = delta P & S =3799.4N, when a common user uses the glove box, the glove opening and the cavity 1 need to be vacuumized, otherwise, the common rubber glove cannot bear the large force at all, after the glove of the stress layer 2 is added, the stress layer 2 is a stainless steel anti-cutting glove, the sealing layer 3 is a thickened nitrile rubber glove sealing layer, the force borne by the glove 3 is distributed on the stress layer 2 uniformly, the stress layer 2 can bear the pressure difference, and the pressure difference can be generated by the hand 374, and the pressure in the glove box can be directly operated by the user.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An operation method under the condition of pressure difference comprises a cavity (1), a stress layer (2), a sealing layer (3) and a sealing fitting (4), and is characterized by comprising the following operation steps:
s1, the sealing layer (3) is sleeved in the stress layer (2), the stress layer (2) and the sealing layer (3) are integrally formed, and the stress layer (2) is arranged in a cavity (1) and has the pressure of 10 -4 pa to 0.1Mpa, the sealing layer (3) is arranged at the cavity (1) with the pressure of0.1-0.2 Mpa;
s2, the sealing fitting (4) is used for sealing the sealing layer (3) and the cavity (1);
s3, when the pressure in the cavity (1) is higher than that outside the cavity (1), namely when the pressure in the cavity (1) is in a state of 0.1-0.2 Mpa, the stress layer (2) and the sealing layer (3) are simultaneously expanded outwards under the pressure in the cavity (1), at the moment, the stress layer (2) is made of high-tensile and high-cut-resistant materials, the sealing layer (3) is made of sealing materials, the stress layer (2) made of the high-tensile and high-cut-resistant materials can bear 0.1-0.2 Mpa, the stress layer (2) and the sealing layer (3) are both in a glove shape, the stress layer (2) is made of one of cut-resistant stainless steel materials and carbon fiber materials, and at the moment, an operator only needs to push the stress layer (2) and the sealing layer (3) which are outwards supported by the high pressure of 0.1-0.2 Mpa into the interior of the high pressure of the cavity (1) forcibly, so that corresponding operation can be carried out in the cavity (1);
s4, when the pressure in the cavity (1) is lower than the outside of the cavity (1), namely when the cavity (1) is in a vacuum state, the stress layer (2) and the sealing layer (3) are simultaneously extruded into the cavity (1) by the pressure outside the cavity (1), at the moment, the stress layer (2) is made of a high-tensile and high-cut-resistant material, the sealing layer (3) is made of a sealing material, the stress layer (2) made of the high-tensile and high-cut-resistant material can bear 0.1-0.2 Mpa, the sealing material of the sealing layer (3) deforms under the action of pressure under stress, can be tightly attached to the stress layer (2), and can be completely and uniformly distributed on the stress layer (2), and at the moment, an operator only needs to insert a hand into the sealing layer (3) to carry out corresponding operation on the cavity (1).
2. The operating method under the condition of pressure difference exists in the claim 1, characterized in that the connection mode between the stress layer (2) and the cavity (1) adopts one of the connection modes of screw fastening and welding.
3. The method for operating under the condition of pressure difference according to claim 1, wherein the sealing fitting (4) seals the sealing between the cavity (1) and the sealing layer (3) in one of O-ring sealing, gasket sealing, ISO flange sealing, CF flange sealing and KF flange sealing.
4. A method of operation in a pressure differential condition as claimed in claim 3 wherein the sealing fitting (4) seals between the chamber (1) and the seal (3) by means of an O-ring seal.
5. The method for operating under the condition of pressure difference according to claim 1, wherein the glove-shaped material adopted by the sealing layer (3) is one of latex material and PVC material, and the sealing layer (3) has a gas-liquid sealing function.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010222677.5A CN111452094B (en) | 2020-03-26 | 2020-03-26 | Operation method under working condition with pressure difference |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222677.5A CN111452094B (en) | 2020-03-26 | 2020-03-26 | Operation method under working condition with pressure difference |
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| Publication Number | Publication Date |
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| CN111452094A CN111452094A (en) | 2020-07-28 |
| CN111452094B true CN111452094B (en) | 2023-04-07 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE58901139D1 (en) * | 1988-05-18 | 1992-05-21 | Siemens Ag | GLOVE IN PARTICULAR FOR A GLOVE BOX CONTAINING A RADIOACTIVE FABRIC AND METHOD FOR THE PRODUCTION THEREOF. |
| FR2777163B1 (en) * | 1998-04-08 | 2000-06-09 | Piercan Sa | SOFT AND WATERPROOF GLOVE |
| JP2000343479A (en) * | 1999-06-08 | 2000-12-12 | Earekkusu:Kk | Glove mechanism for isolator device |
| FR2819153B1 (en) * | 2001-01-08 | 2003-04-04 | Hutchinson | HIGH MECHANICAL PERFORMANCE GLOVES, AND HIGH RESISTANCE TO CHEMICALS AND / OR RADIOLYSIS, AND PROCESS FOR PRODUCING THE SAME |
| CN102962851B (en) * | 2012-12-11 | 2015-03-18 | 哈尔滨商业大学 | Multi-purpose glove box |
| CN107160435A (en) * | 2015-08-18 | 2017-09-15 | 威格气体纯化科技（苏州）股份有限公司 | A kind of special anti-leak gloves of glove box and anti-leak glove box |
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