CN211618716U

CN211618716U - Rigid enclosure device with pressure balance function

Info

Publication number: CN211618716U
Application number: CN201922311499.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Tianjin CNRO Science Technology Co Ltd
Current assignee: Tianjin CNRO Science Technology Co Ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-10-02
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a rigidity enclosure with pressure balance function, include: a rigid airtight enclosure comprising an opening; the flexible pressure regulating device comprises an airtight flexible body which is connected with the opening of the rigid airtight enclosure structure; wherein the flexible pressure regulating device enables the pressure difference between the air pressure in the rigid airtight envelope and the outside to be less than or equal to 500 Pa, 300 Pa, 200 Pa, 100 Pa, 50 Pa or 10 Pa. The flexible pressure regulating device is arranged on the rigid airtight enclosing structure, and when the air pressure of the airtight flexible body in the rigid airtight enclosing structure is increased, the volume is expanded; the volume is reduced when the air pressure inside the rigid airtight envelope is reduced. Therefore, the flexible pressure regulating device can ensure that the air pressure in the rigid airtight enclosure structure is relatively stable, and the air tightness and the working stability of the rigid airtight enclosure structure are protected.

Description

Rigid enclosure device with pressure balance function

Technical Field

The utility model relates to a storage insecticidal technical field especially relates to a rigidity envelope with pressure balance function.

Background

The controlled atmosphere maintenance storage technology is a green, environment-friendly, safe and effective maintenance method; the key point is the whole tightness of the storehouse, which determines the maintenance of temperature, humidity, oxygen concentration, carbon dioxide and the like in an airtight storage space, and the self characteristics are maintained for greatly prolonging the storage time of the articles, inhibiting the propagation of microorganisms, preventing the stored articles from being mildewed by insects and retarding the problems of oxidative deterioration, mildewing and the like of the stored articles in the storage period.

At present, a rigid enclosure device (such as a rigid airtight enclosure structure) is generally adopted in a controlled atmosphere storage space for storing articles such as traditional Chinese medicinal materials, tobacco, cultural relics, books and the like. The rigid enclosure device has good air tightness and can reach very low daily ventilation rate. However, when the environment of the rigid enclosure device changes (for example, temperature changes), the internal and external pressure difference is increased, so that the rigid enclosure device is deformed or the air tightness is reduced, and the safety and the stability of the rigid enclosure device are seriously affected.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model provides a rigidity enclosure with pressure balance function, include: a rigid airtight enclosure comprising an opening; the flexible pressure regulating device comprises an airtight flexible body which is connected with the opening of the rigid airtight enclosure structure; wherein the flexible pressure regulating device enables the pressure difference between the air pressure in the rigid airtight envelope and the outside to be less than or equal to 500 Pa, 300 Pa, 200 Pa, 100 Pa, 50 Pa or 10 Pa.

The rigid enclosure as described above, wherein the air tight flexible body expands in volume as air pressure within the rigid air tight enclosure increases; reducing volume when air pressure within the rigid air tight enclosure is reduced.

The rigid enclosure as described above, wherein the flexible body is a collapsible bag.

The rigid enclosure as described above, wherein the flexible body is an annular bladder.

The rigid enclosure device is characterized in that the thickness of the flexible body is 0.02-1 mm.

The rigid enclosure as described above, wherein the volume of the flexible body is 5% or less of the volume of the rigid airtight enclosure.

The rigid enclosure as described above, wherein the initial volume of gas within the flexible body is 30%, 40%, or 50% of the maximum volume of the flexible body.

The rigid enclosure as described above, wherein the opening is an opening of an air egress assembly of the rigid air tight enclosure.

The rigid enclosure as described above wherein the opening is connected to the flexible body by a hose.

The rigid enclosure as described above wherein the opening includes a bulkhead fitting thereon.

The flexible pressure regulating device is arranged on the rigid airtight enclosing structure, and when the air pressure of the airtight flexible body in the rigid airtight enclosing structure is increased, the volume is expanded; the volume is reduced when the air pressure inside the rigid airtight envelope is reduced. Therefore, the flexible pressure regulating device can ensure that the air pressure in the rigid airtight enclosure structure is relatively stable, and the air tightness and the air stability of the rigid airtight enclosure structure are protected. The application avoids the exchange of gas inside and outside the rigid airtight enclosure structure, and maintains the stability of gas components in the enclosure space for a long time.

Drawings

Preferred embodiments of the present invention will be described in further detail below with reference to the attached drawings, wherein:

fig. 1 is a schematic view of a collapsible bag construction according to an embodiment of the present invention;

FIG. 2 is a schematic view of an annular bladder according to an embodiment of the present invention;

fig. 3 is a schematic view of a rigid containment apparatus according to an embodiment of the present invention; and

fig. 4 is a schematic view of a rigid enclosure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the following detailed description, reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments of the application. In the drawings, like numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized and structural, logical or electrical changes may be made to the embodiments of the present application.

In order to solve the problem of unbalanced air pressure inside and outside the rigid enclosure device, the flexible pressure regulating device is designed and communicated with the rigid enclosure device. The volume is expanded when the air pressure of the rigid enclosure device is increased, and the volume is reduced when the air pressure of the rigid enclosure device is reduced. The flexible pressure regulating device has the characteristics of simple structure, heat resistance, cold resistance and the like.

Fig. 1 is a schematic view of a foldable bag structure according to an embodiment of the present invention. In some embodiments, the flexible pressure regulating device is a collapsible bag. As shown, the collapsible bag 100 includes a flexible tube 110 and a flexible body 120, the flexible tube having one end sealingly connected to the interior of the flexible body 120 and the other end sealingly connected to a rigid enclosure. Wherein the sealing connection mode at least comprises smearing sealing glue, adding a sealing gasket and the like. The flexible body 120 is a flexible bag, and has a sealed space therein, and the inside can bear a certain pressure. In some embodiments, the collapsible bag 100 is made of a material having a thickness of between 0.02 mm and 1mm, which is a flexible material having a tensile strength. In other embodiments, the collapsible bag 100 is made of a flexible material having heat and cold resistance.

In some embodiments, the flexible body 120 is a cube with the back of the pocket provided with one or more creases and one or more elastic memory strips. When there is no gas in the foldable bag, the elastic memory strip automatically folds the flexible body 120 together. As the flexible body 120 is gradually inflated, the gas pressure straightens the elastic memory strip and the flexible body 120 gradually opens. It will be appreciated by those skilled in the art that the flexible body 120 may also be cylindrical or other shapes, and is not limited thereto.

Fig. 2 is a schematic view of an annular bladder according to an embodiment of the present invention. In some embodiments, the flexible pressure regulating device is an annular bladder. As shown, the annular bladder 200 includes a hose 210, a top 220, a bottom 230, and a flexible body 240.

In some embodiments, the top portion 220 and the bottom portion 230 are circular plates, wherein the top portion 220 is provided with an opening for connection with the hose 210. The flexible body 240 is hermetically connected to the top portion 220 and the bottom portion 230, respectively, to form a sealed chamber. Wherein there are a plurality of recesses on the flexible main part, and the flexible main part changes the length of annular gasbag through a plurality of recesses for annular gasbag can stretch out and draw back in certain extent. The annular air bag is reduced, and the volume of the annular air bag is reduced; the annular air bag is stretched, the volume of the annular air bag is increased, and more air can be contained.

In some embodiments, the annular bladder 200 is cylindrical in shape, with the reference radius being adjustable according to the volume of the rigid airtight envelope. Wherein the flexible main body 240 is a flexible part with a thickness of 0.2-2 mm, and the telescopic length is 5-20 cm.

Fig. 3 is a schematic view of a rigid enclosure according to an embodiment of the present invention. As shown, the rigid enclosure 300 includes a rigid airtight enclosure 310 and a collapsible bag 120. Wherein the collapsible bag 120 is in communication with an opening 311 in the rigid air tight containment structure 310 through the hose 110, the opening 311 comprising a through-plate connection. Wherein, the joints of the flexible pipe 110 and the rigid airtight envelope 310 and the foldable bag 120 are hermetically connected. . In some embodiments, the collapsible bag 120 is such that the pressure differential between the air pressure within the rigid airtight enclosure and the outside is less than or equal to 500 pa, 300 pa, 200 pa, 100 pa, 50 pa, or 10 pa. The foldable bag 120 is installed on the rigid airtight enclosure 310, so that the pressure difference between the air pressure inside the rigid airtight enclosure and the outside is not too large, and the air tightness and the working stability of the rigid airtight enclosure are ensured.

In some embodiments, the volume of the collapsible bag 120 is 5% and less of the volume of the rigid airtight enclosure 310. For example, the volume of the rigid air tight enclosure 310 is 100L and the maximum volume of the collapsible bag 120 is at least 5L. The volume of the collapsible bag 120 is configured to match the rigid air-tight envelope 310 to ensure that the collapsible bag 120 can work properly. For example, the volume of the rigid airtight enclosure 310 is 200L, the maximum volume of the foldable bag 120 is 2L, the rigid airtight enclosure 310 is affected by environmental factors, and the air pressure becomes large, wherein air enters into the foldable bag 120. However, the volume of the entering gas is larger than 2L, the foldable bag 120 is burst, the rigid airtight enclosure structure 310 is communicated with the outside, and the stored articles in the cabinet are damaged.

In some embodiments, the initial volume of gas within the collapsible bag 120 is 30%, 40%, or 50% of the maximum volume of the collapsible bag 120. The air pressure within the rigid air tight enclosure 310 may become greater or less subject to environmental influences. The collapsible bag 120 expands in volume as the air pressure within the rigid airtight enclosure 310 increases; the volume is reduced when the air pressure inside the rigid airtight enclosure 310 is reduced. Thus, the collapsible bag 120 needs to be filled with at least 30% gas prior to operation. Wherein the gas filling corresponds to the gas species in the rigid gas tight enclosure 310.

In some embodiments, the rigid air tight enclosure 310 includes an air intake assembly 311 and an air outlet assembly 312. By filling the gas inlet assembly 311 with an inert gas, the gas in the rigid gas-tight enclosure can be displaced through the gas outlet assembly 312. Referring to fig. 3, the opening 311 in the rigid air tight enclosure 310 is provided at the top rear side thereof and the collapsible bag 120 is secured to the top of the rigid air tight enclosure 310. The foldable bag 120 may be glued to the rigid air-tight enclosure 310, or one or more clips may be used to detachably secure the foldable bag 120 to the rigid air-tight enclosure 310. It will be appreciated by those skilled in the art that the opening 311 in the rigid air tight enclosure 310 may be located elsewhere on the rigid air tight enclosure 310 (e.g., on a side wall of the rigid air tight enclosure 310), without limitation.

Fig. 4 is a schematic diagram of a pressure self-balancing method for airtight building envelope according to an embodiment of the present invention. As shown, the airtight enclosure includes a rigid airtight enclosure 310 and an annular bladder 200 with a pressure self-balancing method. The rigid air tight enclosure 310 includes an air intake assembly 312 and an air exhaust assembly 313. The annular bladder 200 includes a hose 210.

In some embodiments, the opening to which the hose 210 is connected is an opening in the air exit member 313. A three-way component is added on the air outlet component 313, one end of the three-way component is connected with an outlet of the air outlet component 313, one end of the three-way component is connected with one end of the hose 210, and the other end of the three-way component is exposed in the atmosphere and is connected with the atmosphere. The interface of the annular air bag 200 is connected with the air outlet assembly 313, so that the interfaces on the rigid enclosure device can be reduced, and the problems of air leakage and the like can be effectively prevented.

The above embodiments are provided only for the purpose of illustration, and are not intended to limit the present invention, and those skilled in the relevant art can make various changes and modifications without departing from the scope of the present invention, and therefore, all equivalent technical solutions should also belong to the scope of the present invention.

Claims

1. A rigid enclosure with pressure equalization comprising:

a rigid airtight enclosure comprising an opening; and

the flexible pressure regulating device comprises an airtight flexible body which is connected with the opening of the rigid airtight enclosure structure;

the flexible pressure regulating device enables the pressure difference between the air pressure in the rigid airtight envelope structure and the outside to be less than or equal to 500 Pa.

2. The rigid enclosure of claim 1 wherein the flexible pressure adjustment device causes a pressure differential between the air pressure inside the rigid air tight enclosure and the outside to be less than or equal to 300 pa.

3. The rigid enclosure of claim 1 wherein the flexible pressure adjustment device causes a pressure differential between the air pressure inside the rigid air tight enclosure and the outside to be less than or equal to 200 pa.

4. The rigid enclosure of claim 1 wherein the flexible pressure adjustment device causes a pressure differential between the air pressure inside the rigid air tight enclosure and the outside to be less than or equal to 100 pa.

5. The rigid enclosure of claim 1 wherein the flexible pressure adjustment device causes a pressure differential between the air pressure inside the rigid air tight enclosure and the outside to be less than or equal to 50 pa.

6. The rigid enclosure of claim 1 wherein the flexible pressure adjustment device causes a pressure differential between the air pressure inside the rigid air tight enclosure and the outside to be less than or equal to 10 pa.

7. The rigid enclosure of claim 1 wherein the airtight flexible body expands in volume as air pressure within the rigid airtight enclosure increases; reducing volume when air pressure within the rigid air tight enclosure is reduced.

8. The rigid enclosure of claim 1 wherein the flexible body is a collapsible bag.

9. The rigid enclosure of claim 1 wherein the flexible body is an annular bladder.

10. The rigid enclosure of claim 1 wherein the flexible body has a thickness of 0.02 mm to 1 mm.

11. The rigid enclosure of claim 1 wherein the volume of the flexible body is 5% or less of the volume of the rigid gas tight enclosure.

12. The rigid enclosure of claim 1 wherein the initial volume of gas within the flexible body is 30%, 40%, or 50% of the maximum volume of the flexible body.

13. The rigid enclosure of claim 1 wherein the opening is an opening of an air outlet assembly of the rigid air tight enclosure.

14. The rigid enclosure of claim 1 wherein the opening is connected to the flexible body by a hose.

15. The rigid enclosure of claim 1 wherein the opening includes a bulkhead fitting thereon.