CN211624322U

CN211624322U - Protection device for rigid enclosure and rigid air conditioning device

Info

Publication number: CN211624322U
Application number: CN201922322181.0U
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 protection device and rigidity gas adjusting device of rigidity enclosure, wherein the protection device of rigidity enclosure, include: a housing including a passage communicating with the outside; and one or more pressure balancing membranes disposed in the channel; wherein the one or more pressure balancing membranes are substantially free of gas exchange when the pressure differential across the channel is below a first threshold. This application is through installing the protection device of rigidity envelope on rigidity airtight envelope, can guarantee that rigidity envelope internal and external pressure is balanced relatively, avoids rigidity envelope to take place to deform or leads to reducing the problem of gas tightness. The protection device of the rigid enclosure has the advantages of simple structure, easy operation, maintenance-free property and the like.

Description

Protection device for rigid enclosure and rigid air conditioning device

Technical Field

The utility model relates to a storage insecticidal technical field especially relates to a protection device and rigidity gas adjusting device of rigidity enclosure.

Background

Modified atmosphere storage of hypoxia and insecticidal techniques are increasingly being used. The traditional Chinese medicinal materials, tobacco, cultural relics, books, files and other articles can be subjected to insect killing, insect prevention, mildew prevention and bacteriostasis and long-term safe storage by a low-oxygen modified atmosphere storage technology; and the method has the advantages of no toxicity, environmental protection, safety, rapidness, economy, effectiveness, simple operation and the like.

At present, the air-conditioned storage space generally adopts a rigid enclosure (such as a rigid storage cabinet) to store articles such as traditional Chinese medicinal materials, tobacco, cultural relics, books and the like. The rigid enclosure has good air tightness and can reach very low daily ventilation rate. However, when the environment of the rigid enclosure changes (such as temperature changes), the internal and external pressure difference is increased, so that the rigid enclosure deforms or the air tightness is reduced, and the safety and the stability of the rigid enclosure are seriously affected.

SUMMERY OF THE UTILITY MODEL

To the technical problem who exists among the prior art, the utility model provides a protection device of rigidity enclosure, include: a housing including a passage communicating with the outside; and one or more pressure balancing membranes disposed in the channel; wherein the one or more pressure balancing membranes are substantially free of gas exchange when the pressure differential across the channel is below a first threshold.

The protection device for the rigid enclosure is characterized in that when the pressure difference between two sides of the channel exceeds a first threshold value, the gas on the high pressure side enters the gas on the low pressure side through the pressure balancing film.

In the protection device for the rigid enclosure, the one or more pressure balance films are molecular-level polymer films.

The protective device for the rigid enclosure comprises a pin body and a pin cap, wherein the channel is arranged in the center of the pin body, and the channel extends to the side face of the pin cap in a turning way.

The rigid enclosure protector as described above, the outer surface of the pin body comprising a thread.

According to another aspect of the application, a rigid modified atmosphere device is provided, comprising: rigid airtight enclosure; and one or more rigid containment protectors as described above.

The rigid gas conditioning apparatus as described above, the rigid gas-tight enclosure comprising a through hole adapted to receive the protection means of the rigid enclosure as described above, the through hole being hermetically sealed with the protection means of the rigid enclosure as described above.

The rigid air conditioning device as described above, the through hole of the rigid airtight enclosure comprises internal threads.

The rigid gas conditioning apparatus as described above, the rigid gas-tight enclosure comprising a plurality of the above-described rigid enclosure protectors at different locations.

The pressure regulating capability of the rigid enclosure protection device is determined by the pressure change caused by gas exchange inside and outside the enclosure, temperature rise and fall and other factors, the volume of the enclosure and other factors.

The pressure regulating capacity of the rigid enclosure protection device as described above is about 5-50 pa/min.

This application is through installing the protection device of rigidity envelope on rigidity airtight envelope, can guarantee that rigidity envelope internal and external pressure is balanced relatively, avoids rigidity envelope to take place to deform or leads to reducing the problem of gas tightness. The protection device of the rigid enclosure has the advantages of simple structure, easy operation, maintenance-free property and the like.

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 cross-sectional view of a protective device according to an embodiment of the present invention;

fig. 2A-B are schematic views of a protective device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a rigid air conditioning apparatus according to an embodiment of the present invention; and

fig. 4 is a schematic structural view of a rigid air conditioning device according to another 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.

Fig. 1 is a cross-sectional view of a protective device according to an embodiment of the present invention. Fig. 2A-B are schematic views of a protective device according to an embodiment of the present invention. As shown, the protective device 100 includes a housing 110 and one or more pressure balancing membranes 120. In some embodiments, the overall shape of the protective device 100 is substantially in the shape of a screw or pin. For example, the housing 110 includes a pin cap 111 and a pin body 112. The pin cap 111 and the pin body 112 are integrally formed. Alternatively, the pin cap 111 and the pin body 112 are connected by a seal, wherein the seal includes, but is not limited to, adding a gasket, applying a sealant, etc.

In some embodiments, the pin body 112 is a hollow cylinder with one end connected to the pin cap 111 and the other end exposed to the atmosphere. The pin cap 111 has an equihexagonal metal cylinder in cross section, and one side thereof is connected to the pin body 112. The size of the hexagon on the pin cap 111 is standard, the pin body 112 includes external threads, and the protector 100 can be installed on the rigid airtight enclosure by using a tool. It will be understood by those skilled in the art that other shapes of the pin cap 111 and the pin 112 may be used in the present embodiment, and are not limited thereto.

In some embodiments, a passage 113 is disposed within the housing 100, wherein the passage 113 includes a first passage 113 and a second passage 114. Wherein the first channel 113 is centrally disposed in the pin body 112 and extends to the center of the pin cap 111. The second passage 114 is provided on the side of the pin cap 111 and extends toward the center to communicate with the first passage 113, and the first passage 113 and the second passage 114 are provided in mutually perpendicular directions, respectively. In some embodiments, the sides of the pin cap 111 are evenly distributed with a plurality of second channels 114, each communicating with the first channel 113. The first channel 113 and the second channel 114 are disposed in the directions perpendicular to each other, so that the pressure balance film 120 can be protected from external damage, and the direction of air flow in the environment is not affected by the communication of the internal air and the external air.

In some embodiments, one or more pressure balancing membranes 120 are disposed in the first channel 113, which separates the first channel 113 into two spaces. When the pressure difference across the pressure balancing membrane 120 is below the first threshold, there is substantially no gas exchange. When the pressure difference across the pressure balancing membrane 120 exceeds a first threshold, gas in the high pressure side passes through the pressure balancing membrane into the low pressure side. In some embodiments, the first threshold value is 500 pa, 300 pa, 200pa, 100 pa, 50 pa, or 10 pa. The first threshold value can be adjusted by changing the type, area and number of the pressure balancing membranes, so that the requirements of rigid airtight enclosure are met.

In some embodiments, the pressure equalization membrane is a molecular weight polymer film. Examples of the polymer membrane include cellulose polymer membranes, regenerated cellulose polymer membranes, Polytetrafluoroethylene (PTFE) polymer membranes, polyvinylidene fluoride (PVDF) polymer membranes, and polypropylene (PP) polymer membranes. The molecular-level polymer film can filter dust, mould, spores, ova and other pollutants in the gas, and ensures that articles in the rigid airtight enclosure are not polluted. In some embodiments, the pressure equalization membrane has the function of separating gases. It will be understood by those skilled in the art that the pressure balance membrane type may be adjusted to separate different gases when installed on different rigid gas-tight enclosures, and is not limited herein.

Fig. 3 is a schematic structural view of a rigid air conditioning device according to an embodiment of the present invention. As shown, the rigid modified atmosphere device 300 includes a protective device 100 and a rigid airtight enclosure 200. Wherein the rigid airtight enclosure 200 comprises a through hole, and the protection device 100 is installed on the side wall of the rigid airtight enclosure 200 through the through hole. In some embodiments, the pin body outer surface of the protector comprises external threads and the opening of the rigid enclosure comprises internal threads, and the protector 100 can be mounted on the rigid gas-tight enclosure 200 by interfitting the threads. In other embodiments, the protective device may be secured to the rigid air tight enclosure 200 by an air tight gasket or sealant.

Fig. 4 is a schematic structural view of a rigid air conditioning device according to another embodiment of the present invention. As shown, the rigid modified atmosphere device 300 includes a plurality of protective devices 100 and a rigid airtight enclosure 200. Wherein a plurality of protective devices 100 are mounted at a top position of the rigid air tight enclosure 200. In some embodiments, the rigid airtight enclosure 200 includes a plurality of rigid enclosure protectors 100 at different locations. To ensure rapid adjustment of the air pressure balance within the rigid enclosure 200, multiple rigid enclosure protectors 100 may be secured at multiple locations of the rigid enclosure (e.g., on the top and sidewalls).

The pressure regulating capability of the rigid enclosure protection device is determined by the pressure change caused by gas exchange inside and outside the enclosure, temperature rise and fall and other factors, the volume of the enclosure and other factors. In some embodiments, the pressure regulating capability of the protective device is about 5-50 Pa/min. For example, the pressure threshold of the protective device is 200Pa, for example. When the pressure in the rigid airtight enclosure is greater than 200Pa of the atmospheric pressure, the protection device discharges the gas at a rate of about 5-10 Pa/min; the pressure regulating capability of the protective device is enhanced with the gradual rise of the pressure in the rigid airtight enclosure, and the gas can be exhausted at the rate of 50 Pa/min at most. Under normal conditions, the pressure difference between the inside and the outside of the rigid airtight envelope structure can not reach 500 Pa. Therefore, the protection device can work stably in the normal fluctuation range of the air pressure, and the safety of the rigid airtight envelope structure is ensured.

The utility model discloses a rigidity enclosure atmospheric pressure protection device, simple structure, convenient to use not only can be applied to the great rigidity enclosure of volume, also can be applied to on the less or other types of rigidity enclosure of volume.

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 protective device for a rigid enclosure, comprising:

a housing including a passage communicating with the outside; and

one or more pressure balancing membranes disposed in the channel;

wherein the one or more pressure balancing membranes are free of gas exchange when the pressure difference across the channel is below a first threshold.

2. The rigid enclosure of claim 1 wherein the one or more pressure balancing membranes allow high pressure side gas to pass through the pressure balancing membrane to the low pressure side when a pressure differential across the passageway exceeds a first threshold.

3. The rigid enclosure protection of claim 1 wherein the one or more pressure equalization membranes are molecular weight polymer films.

4. The rigid enclosure of claim 1 wherein the housing includes a pin body and a pin cap, the channel being centered on the pin body, the channel extending in the pin cap turned to the side of the pin cap.

5. The rigid enclosure of claim 4 wherein the outer surface of the pin body includes threads.

6. A rigid modified atmosphere device, comprising:

rigid airtight enclosure; and

one or more rigid containment protectors as claimed in any one of claims 1 to 5.

7. A rigid modified atmosphere device according to claim 6 wherein the rigid gas-tight enclosure comprises an aperture adapted to receive the protective means of the rigid enclosure, the aperture being hermetically sealed from the protective means of the rigid enclosure.

8. The rigid air conditioning apparatus of claim 7, wherein the through hole of the rigid air-tight enclosure comprises internal threads.

9. A rigid modified atmosphere device according to claim 7 wherein the rigid gas-tight enclosure comprises a plurality of said rigid enclosure protectors at different locations.

10. The rigid modified atmosphere device of claim 7, wherein the pressure regulating capacity of the rigid enclosure protection device is about 5-50 pa/min.