CN211173347U

CN211173347U - Inflatable airtight tent

Info

Publication number: CN211173347U
Application number: CN201921509708.4U
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: 2019-09-11
Filing date: 2019-09-11
Publication date: 2020-08-04
Anticipated expiration: 2029-09-11

Abstract

The utility model relates to an airtight tent of inflatable type, include: one or more gas columns; and one or more flexible air barriers; wherein the one or more flexible airtight layers and the one or more air columns form an airtight space. The utility model discloses an airtight tent can fill the gassing and have the characteristics of convenient removal and operation, has extensive application scene.

Description

Inflatable airtight tent

Technical Field

The utility model relates to a storage insecticidal technical field especially relates to an airtight tent of inflatable type.

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.

In the prior art, a rigid airtight enclosure structure is mostly adopted in the process of implementing low-oxygen modified atmosphere storage and disinsection. However, the rigid airtight envelope is complex to install and has poor adaptability to the site, and is inconvenient to carry and move. Therefore, there is a need in the art for a new building envelope that is easy to move and operate and that ensures good air tightness.

Disclosure of Invention

To the technical problem who exists among the prior art, the utility model provides an airtight tent of inflatable type, include: one or more gas columns; and one or more flexible air barriers; wherein the one or more flexible airtight layers and the one or more air columns form an airtight space.

The inflatable airtight tent as described above, wherein one or more of the air columns is a flexible airtight material; one or more air columns provide support for the air-tight space when inflated.

The inflatable airtight tent as described above, the flexible airtight layer includes an opaque or translucent airtight film material.

The inflatable airtight tent has one or more air columns with a diameter of 200-500 mm and an inflation pressure of 15-30 kPa.

The inflatable airtight tent has the advantages that the daily pressure relief amount of one or more air columns is 50-2000 Pa/day; preferably less than 500 Pa/day.

The inflatable, airtight tent as described above, wherein the one or more air columns comprise a vertical column and a bottom air column, wherein the vertical column and the bottom air column are isolated.

The inflatable airtight tent as described above, wherein the vertical columns are vertical columns.

The inflatable airtight tent as described above, wherein the interval between the vertical posts is 1-3 m.

The inflatable airtight tent as described above, wherein the one or more gas columns comprise a top gas column, the top gas column being one of a flat top, a dome top, a triangular top, and a tetrahedral top.

The inflatable airtight tent as described above, wherein the flexible airtight layer comprises an airtight door.

The inflatable airtight tent as described above, wherein the airtight door has a width of less than 3m and a height of less than 4 m.

The inflatable airtight tent as described above, wherein the airtight door comprises a flexible airtight door and a multi-layered flexible soft curtain.

The inflatable, airtight tent as described above, wherein the gas column includes a polymeric interface thereon, the polymeric interface including one or more of a gas fill port, a pressure measurement valve, and a safety valve.

The inflatable airtight tent as described above, wherein the flexible airtight layer includes a merging interface thereon, the merging interface comprising: one or more of an air inlet or an air outlet, an oxygen content detection port, a temperature and humidity detection port and a gas detection port.

The airtight tent of the inflatable type as described above, wherein the air exchange rate of the airtight space is 0.05d or less^-1。

The airtight tent of the inflatable type as described above, wherein the air exchange rate of the airtight space is 0.02d or less^-1。

The airtight inflatable tent according to claim 1, wherein the air exchange rate of the airtight space is measured by an oxygen increase method according to the following calculation formula △ Ct ═ A. exp (-n.t), where △ Ct is the difference between the oxygen content inside and outside the airtight tent at the time t, A is the difference between the oxygen content inside and outside the tent at the start of the measurement, n is the air exchange rate of the tent, and t is the time of the measurement.

The inflatable airtight tent as described above, wherein the airtight space has a volume of 6m or more³。

The inflatable airtight tent described above, wherein the width dimension of the bonding line between the air column and the flexible airtight layer is 5 to 50mm, preferably not less than 8 mm.

The inflatable airtight tent as described above, wherein the bonding line of the air column and the flexible airtight layer is located above or below the self-bonding line of the air column with reference to the self-bonding line of the air column.

According to another aspect of the present application, there is provided an inflatable airtight tent comprising: a top gas column; a facade gas column; a bottom gas column; and one or more flexible air barriers; the flexible airtight layers are positioned between the top air column and the vertical air column and are in airtight connection with the top air column and the vertical air column and the bottom air column.

The utility model discloses an airtight tent can fill the gassing and have the characteristics of convenient removal and operation, has extensive application scene.

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 perspective view illustrating an inflatable airtight tent according to an embodiment of the present invention;

fig. 2 is a schematic view of the front of an inflatable airtight tent according to an embodiment of the present invention;

fig. 3 and 4 are perspective views of an inflatable airtight tent according to an embodiment of the present invention;

fig. 5 and 6 are schematic views of external connections of an airtight tent according to an embodiment of the present invention;

fig. 7 and 8 are schematic views of different structures of airtight tents according to embodiments of the present invention;

fig. 9 is a schematic view of the addition of a vertical air column according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of an additional elevation and top beam air column according to an embodiment of the present invention;

fig. 11 and 12 are schematic views of a flexible airtight tent to facilitate ingress and egress according to an embodiment of the present invention;

fig. 13 and 14 are schematic views of the connection of the gas column and the flexible airtight layer of the airtight tent according to the embodiment of the present invention;

figures 15-19 are schematic views of an airtight door according to an embodiment of the present invention;

fig. 20-22 are schematic diagrams of the hermetic interface of the flexible hermetic layer according to an embodiment of the present invention; and

fig. 23 is a schematic view of an air path interface of a flexible air barrier 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 technical problem of convenient business turn over flexible airtight envelope of haulage equipment or article etc, the utility model provides an airtight envelope of this neotype of inflatable airtight tent. In some embodiments, because the bearing structure of airtight tent has adopted gas filled gas column, the utility model discloses can realize the airtight envelope of a big space full flexibility to this airtight envelope uses convenient, the removal is convenient, but strange land used repeatedly. More importantly, in some embodiments, the air-tight enclosure ventilation rate of the present invention can be less than 0.05d^-1(i.e. the daily ventilation rate is less than 0.05 percent under the conditions of no external power and no pressure difference); in some preferred embodiments, the ventilation rate can be less than 0.01d^-1(i.e. the daily ventilation rate is less than 0.01 percent under the conditions of no external power and no pressure difference). Therefore, the utility model discloses an airtight tent of inflatable type can also realize low power consumption and low-cost operation, thereby makes the utility model discloses an airtight envelope is more environmental protection, also more competitive.

Fig. 1 is a perspective view illustrating an inflatable airtight tent according to an embodiment of the present invention. Fig. 2 is a schematic view of the front of an inflatable airtight tent according to an embodiment of the present invention. Fig. 3 and 4 are perspective views of an inflatable airtight tent according to an embodiment of the present invention.

As shown, the inflatable flexible airtight tent 100 includes: a plurality of air columns 101 and a plurality of flexible air barriers 102 and one or more air tight doors hermetically connected thereto. Wherein, the airtight door is arranged on the flexible airtight layer of the vertical surface of the airtight tent. The airtight space 103 is a space surrounded by the plurality of air columns 101, the plurality of flexible airtight layers 102 connected thereto in an airtight manner, one or more airtight doors, and the like. In some embodiments, the plurality of air columns 101 define a plurality of zones, and the flexible air barrier 102 is disposed between the plurality of air columns 101.

In some embodiments, one or more gas columns 101 are capable of being inflated and deflated. When the air column 101 is inflated, it can provide support for the airtight space 103; when the air column 101 is deflated, it can have flexibility, so that the airtight tent 100 can be moved conveniently and rapidly.

In some embodiments, the air column 101 is made of a flexible airtight material, such as a 0.5-2.0 mm thick double-coated mesh fabric, which has good flexibility after deflation while maintaining airtightness. It will be appreciated by those skilled in the art that other flexible, gas-tight materials may be used for the gas column 101.

In some embodiments, the diameter of the gas column 101 is inversely proportional to the pressure. The thicker the diameter of the gas column 101, the smaller the pressure, and the thinner the diameter, the larger the pressure. In some embodiments, the gas column 101 has a diameter of 200 to 500mm and an inflation pressure of 15 to 30 kPa.

In some embodiments, the daily pressure relief of the gas column 101 measures 50-2000 Pa/day. The less the pressure relief, the better the seal of the gas column 101. Preferably, the daily pressure relief of the air column 101 is measured to be less than or equal to 500 Pa/day to enable the support strength of the air column to be maintained for a long period of time.

In some embodiments, the one or more gas columns 101 comprise: a top gas column, a column, and a bottom gas column. The top gas column, the upright post and the bottom gas column can be independent gas columns, and can also be a top section, an upright post section and a bottom section of one gas column. In the scheme of the embodiment, different gas columns or gas columns in different sections can be combined at will. In other words, the one or more gas columns 101 comprise one or more gas columns or one or more gas column sections. Hereinafter, unless otherwise specified, top gas column, and bottom gas column are not specified to be independent gas columns or sections of gas columns. In some embodiments, the column or the column and the top gas column are also referred to as an upper gas column.

The uprights are the main part providing support. In some embodiments, to make better use of the air-tight space 103, the columns are arranged at the edges to be facade air columns. As shown, the

air column

111 and 114 is a vertical air column. Although the vertical columns are shown in this embodiment as being vertical, the columns may have other configurations as will be appreciated by those skilled in the art.

The top gas column facilitates the expansion of the gas-tight space 103. As shown, the gas column 115-118 is a top gas column. In some embodiments, the top gas column also facilitates stabilization of the entire gas column structure. However, a top gas column is not necessary.

The bottom gas column is beneficial to providing a stable foundation for the whole gas column structure. For better utilization of the air-tight space 103, a bottom air column is provided at the edge. As shown, the gas column 119-122 is a bottom gas column. The bottom gas column is also not necessary in case other supports can be substituted.

In some embodiments, one or more of the top, facade, and bottom air columns form the air column framework of the airtight tent 100. A flexible air barrier is located between one or more of the top air column, the facade air column, and the bottom air column, forming an air tight space 103.

In some embodiments, the inflation port of the gas column 101 is located outside the airtight space 103. In other words, the air column 101 can be inflated and deflated from the outside without affecting the airtight space 103. As shown, bottom inflation port 105 is disposed on bottom air column 120, and can be used for inflating

bottom air column

119 and 122. The vertical air column 112 is provided with an upper inflation port 106 which can inflate the top and

vertical air columns

111 and 118. Those skilled in the art will appreciate that other numbers and locations of inflation ports are possible. In some embodiments, the upper air column may be divided into separate sections depending on the size of the inflatable tent. Each part can independently fill the gassing to be convenient for detect airtight tent gas tightness.

In some embodiments, the flexible air barrier 102 includes, but is not limited to, PVC film, air barrier, and the like air barrier materials. The flexible air barrier 102 may be opaque or translucent. In some embodiments, a transparent PVC film may be used to facilitate viewing of the interior of the tent. In the case of a non-transparent flexible airtight layer, an airtight observation window can be added or a transparent airtight door can be adopted.

The airtight tent 100 also includes an airtight door 104. In some embodiments, the airtight door 104 is a zipper door, a magnetic door, an adhesive door, or the like, such as a zippered soft door, which is tightened to provide a locking function. The size of the airtight door 104 is determined according to the specifications of the stored goods, the vehicle, and the like, and the requirements of personnel access and the like. In a preferred embodiment, the air tight door 104 has a width of less than 3m and a door height of less than 4m to provide good air tightness. One or more airtight doors of different sizes may be provided on the airtight tent 100 according to actual needs.

In some embodiments, referring to fig. 2, a polymerization interface 200 is included on the gas column 101. The aggregation interface 200 includes one or more of a gas fill port 201,

pressure measurement valves

202 and 204, and a relief valve 203. A pressure measuring valve is used to measure the pressure within the gas column 101. The safety valve 203 automatically relieves pressure when the pressure in the gas column 101 exceeds a predetermined threshold value to ensure safety. As shown, the aggregate interface 200 may include a plurality of

pressure measurement valves

202 and 204, the plurality of

pressure measurement valves

202 and 204 being spaced apart.

In some embodiments, referring to fig. 3 and 4, the flexible air barrier 102 includes an air inlet 301 and an air outlet 302 thereon. The gas inlet 301 is used to connect to a hypoxic gas conditioning device or nitrogen gas source, etc., to reduce the oxygen content in the gas-tight space 103. The gas outlet 302 is used to discharge the gas in the airtight space 103. In some embodiments, the outlet 302 may be connected to an exhaust valve, etc., or may be connected to an oxygen content, temperature, humidity, or other detection device. The air inlet 301 may include an air inlet valve or a one-way check valve to prevent air leakage when the air pump line is pulled out after the air inflation is completed. The vent 302 may also include a one-way check valve to prevent the ingress of outside air when a pressure differential exists between the inside and the outside. As shown in the figure, the air inlet 301 may be provided at the upper part of the airtight space 103 or at the lower part thereof; the air outlet 302 is generally disposed at a lower portion of the airtight space 103.

In some embodiments, the flexible air barrier 102 includes an air tight interface thereon. The gas-tight interface includes one or more of a gas inlet 301 or a gas outlet 302, an oxygen content detection port, a temperature and humidity detection port, a gas detection port, and the like. Preferably, detection interfaces such as an oxygen content detection port, a temperature and humidity detection port, and a gas detection port are disposed together with the gas outlet 302.

Fig. 5 and 6 are schematic views illustrating an external connection of an airtight tent according to an embodiment of the present invention. As shown in fig. 5, the inflation port of the gas column 101 of the airtight tent 100 is connected to an inflator 501 to inflate the compressed gas; the inflating device 501 includes an air compressor, an air pump, an air bottle or other devices capable of providing air under a certain pressure. The pressure measuring valve of the gas column 101 is connected to a pressure detecting device 502 to detect the pressure inside the gas column 101. As shown in fig. 6, the air inlet of the flexible air-tight layer 102 of the air-tight tent 100 is connected to the hypoxic air conditioning equipment 601 to charge the air-tight space 103 with nitrogen and reduce oxygen. The oxygen content detection port and the temperature and humidity detection port of the flexible air barrier 102 are connected to the oxygen detection device 602 and the temperature and humidity sensor 603, respectively, to detect the oxygen content and the temperature and humidity in the airtight space 103.

After the airtight tent 100 is sealed, the airtight space 103 is filled with nitrogen to reduce oxygen. In some embodiments, this process is continued until the oxygen content in the net has dropped below 10%, preferably to an oxygen content of ≦ 5%. Then, the air intake and exhaust of the airtight tent 100 is closed, and the airtight tent is left for a while until the air tightness in the tent is uniformly distributed, and then the test is started.

In some embodiments, the oxygen detection device 602 is a diffusion-type oxygen detection device or a pump-suction type oxygen detection device with a built-in power supply, and the detector is preferably arranged in the tent, in some embodiments, the oxygen detection interval of the oxygen detection device 602 is 10-60 min, and the gas production rate Q detected by the pump-suction type oxygen detection device at a time is less than or equal to 0.2L/min.

In some embodiments, the hermetic tent seal (i.e., air exchange rate) is measured using an oxygen growth method. The oxygen increase is calculated as follows:

△Ct＝A·exp(-n·t)

wherein △Ct is the difference of the oxygen content inside and outside the tent at t time; a is the difference value of the oxygen content inside and outside the tent at the beginning of detection; n is the ventilation rate of the tent in units of (d) per day^-1) T is the measured time in days (d) since △ Ct, A, and t are all measurable, it can be used to calculate or estimate the air exchange rate of an airtight tent.

In some embodiments, the ventilation rate of the airtight tent 100 for controlled-atmosphere low oxygen disinfestation is less than or equal to 0.02d^-1(ii) a The ventilation rate of the airtight tent 100 for the low-oxygen controlled atmosphere storage is less than or equal to 0.05d^-1. The airtight tent of the utility model can reach very low daily ventilation rate, and completely meet the requirements of low-oxygen controlled atmosphere disinsection and valuable article storage.

Fig. 7 and 8 are schematic views of airtight tents of different structures according to embodiments of the present invention. In some embodiments, the gas column of the present invention is formed as a unitary frame structure. The air column has various types including but not limited to rectangular parallelepiped, cube, cylinder, multi-face cylinder, etc. The top gas column includes, but is not limited to, a flat top, a dome top, a triangular top, a tetrahedral top, and the like. Fig. 7 and 8 show the structure that the top of the airtight tent is a triangular roof and a dome-shaped roof, and the airtight space is expanded to facilitate the storage and transportation of the goods.

In some embodiments, to enhance the overall structural strength of the air column frame, the upper air column may add a top beam air column, a facade support air column, or the like. Fig. 9 is a schematic view of adding a vertical air column according to an embodiment of the present invention, and fig. 10 is a schematic perspective view of adding a top beam air column 125 and a vertical

support air column

123 and 124 on the basis of fig. 1. If some embodiments of the utility model show, on the one hand, the gas column diameter of airtight tent should not be undersize, prevents that parts such as inflation inlet, relief valve, single face pressure-measuring valve from aerifing the back because the gas column is tight and probably produce fracture, gap. On the other hand, the air column of the airtight tent is directly not too large, so that the influence of too small pressure which can be borne by the air column on the supporting effect is prevented. In some embodiments, the diameter of the air column of the airtight tent is related to the volume of the airtight tent as follows:

tent volume (m)³)	6～10	10～40	＞40
				Diameter range of air column (mm)	150～250	200～300	250～400

The volume of an airtight tent is typically 6m³The above. In order to increase the volume of the airtight space, a pillar (e.g., a facade air pillar) may be added as shown in fig. 9. In some embodiments, the distance between two adjacent air columns is controlled to be 1-3m, preferably 2m, so as to ensure sufficient support degree of the airtight tent.

Fig. 11 and 12 are schematic views of a flexible airtight tent facilitating access according to an embodiment of the present invention. The air column frame of the airtight tent comprises two parts of air columns: an upper gas column and a bottom gas column which can be independently inflated and deflated; wherein the upper air column may further comprise a top air column and a vertical column (e.g., a facade air column). As shown, this isolation design allows the bottom column to be independently charged and discharged. When a forklift, a cart and the like need to enter and exit, the bottom inflatable column can be emptied so as to facilitate the entering and exiting of the transport means. In some embodiments, the bottom airtight columns are deflated to withstand repeated crushing (more than 10 times) of not less than 500kg of crushing weight of a forklift or other handling equipment to facilitate handling of the pallet or item. In some embodiments, the inflation port of the bottom air column is not located on the bottom air column to which the airtight door corresponds. Thus, the inflation inlet can be prevented from being damaged by rolling and the air column can be prevented from being damaged.

As shown in fig. 12, when the cargo is transported, the bottom air column is completely deflated. At this time, the upper gas column can still take on the supporting role of the airtight space. Next, the airtight door is opened to carry the goods. And (5) after the goods are transported, inflating the bottom air column and sealing the airtight door.

In some embodiments, in the case of deflation of the bottom inflatable column, the lower edge line of the airtight door is not higher than the height of the bottom inflatable column membrane after complete deflation, so as to avoid easy damage to the airtight door during cargo handling, which leads to the damage to the tightness of the flexible airtight tent. Taking the bottom air column as a cylinder as an example, the height of the lower edge of the airtight door is equal to or lower than the height of the position where the width of the inflated bottom air column is the maximum radius.

In another embodiment, the bottom gas column comprises a plurality of gas columns. Of the air columns, only the air column corresponding to the airtight door can be independently inflated and deflated. The other air columns in the bottom air column still keep the inflated state. The upper gas column also remains inflated. Other air columns in the upper air column and the bottom air column can jointly play a role in supporting an airtight space, and a goods shelf or goods can be conveniently put in and taken out.

Fig. 13 and 14 are schematic views illustrating connection of an air column and a flexible airtight layer of an airtight tent according to an embodiment of the present invention. The air column and the flexible air-tight layer can be connected in a heat seal compression joint mode in an air-tight mode, and the whole air tightness is guaranteed. In order to prevent the adhesion strength from being insufficient and the air leakage phenomenon from easily occurring, in some embodiments, the width dimension of the adhesion line between the air column and the flexible air-tight layer should be controlled to be 5-50 mm, preferably not less than 8 mm.

As shown in fig. 13, the inflation port 1301 of the air column is on the outside of the tent. In some embodiments, the air inlet 1301 of the bottom air column is disposed below the bonding line 1302 of the flexible air barrier and the bottom air column, and the distance between the flexible air barrier and the bonding line is not less than 5mm, so as to prevent the air inlet from being bonded to the bottom air column with insufficient strength to generate air leakage. Preferably, the inflation port 1301 of the bottom air column faces away from the side of the airtight door to prevent damage to the inflation column or inflation port due to crushing.

The utility model discloses the people discovery, when the self bonding line of gas post and the bonding line of flexible air barrier and gas post are in same position, there is the risk of leaking gas easily. In some embodiments, the two bonds are staggered as shown in FIG. 14. The flexible air barrier can be bonded to the air column either above 1402 or below 1403, based on the air column's self-bond line 1401. In some embodiments, the two are separated by at least 5 mm. The distance between the lower edge of the airtight door (or the airtight zipper of the airtight door) and the bonding line of the flexible airtight layer and the bottom air column is moderate, and preferably 5-50 mm.

Fig. 15-19 are schematic views of an airtight door according to an embodiment of the present invention. The sealing of the airtight door is a difficult problem for airtight tents. In some embodiments, the multi-layer flexible airtight door for airtight tent of the present invention creates an airtight and stable storage environment for the storage articles in the tent.

As shown, air tight door 1500 includes door seal 1502 and multi-layer

flexible drapes

1504 and 1506. The door seal 1502 includes an airtight zipper, a magnetic strip, an adhesive strip, and the like. If the airtight door is sealed by a zipper, a single-head or double-head split zipper can be selected, and the double-head split zipper is preferred. According to the selected form of the sealing assembly, the edge of the airtight door 104 and the corresponding airtight door opening edge of the flexible airtight layer 102 are provided with a zipper or a magnetic strip in a butt joint or lap joint mode. The door seal 1502 on the one hand fulfills the basic sealing requirements and on the other hand forms a planar structure with a certain strength with the tent air tight membrane after sealing.

In some embodiments, the flexible curtain may also be an adhesive flexible curtain covering the outside of the door seal. The number of layers of the flexible soft curtain can be selected according to the requirement, for example, the number of the flexible soft curtain is 2-5, so that multi-layer sealing is realized, and a low-oxygen airtight space in the airtight tent is ensured. In some embodiments, the edge of the flexible drapery should be 5-40 mm beyond the adjacent door seal or flexible drapery edge.

As shown, a flexible soft curtain 1504 is disposed on the outside of the door seal. In some embodiments, the length and width exceed the door seal by, for example, 10-15 mm. In some embodiments, the flexible drapery should extend beyond the edge of the adjacent inner flexible drapery; and then the edge of the flexible soft curtain is stuck with the flexible airtight layer by using airtight adhesive tapes or double-sided adhesive tapes and the like, so that a low-oxygen airtight space in the tent is ensured.

In some embodiments, where multiple layers of flexible draperies are provided, the outer flexible draperies are sequentially extended beyond the edge of the adjacent inner flexible draperies, and the flexible draperies 1506 are disposed outside the flexible draperies 1504 and sealed to the flexible air barrier as shown. In some embodiments, the length and width exceed the flexible soft drape 1504 by, for example, 10-15 mm.

When goods are transported, the upper air column can be filled first to form the flexible airtight envelope structure with certain strength. The article to be stored or maintained is placed in an airtight tent, and then the bottom air column is inflated. If the inflatable column of the airtight tent is of an integrated structure, the air can be inflated once and then the goods can be transported.

After the end of the cargo handling, the door seal 1502 is first closed. Then, the outer airtight soft curtain is sequentially adhered and sealed with the flexible airtight layer 102 layer by layer in a cladding manner.

The door seal shown in fig. 15 is of ∪ type construction the door seal shown in fig. 16 and 17 is of ∩ type and

the structure of the door sealing piece is that the airtight zipper, the magnetic attraction strip and the like shown in figure 18 can be of a full-covering type, and the types of the door sealing piece are not limited to ∪ type, ∩ type, magnetic attraction strip and the like,

The model is,

And L, in some embodiments, the corner of the door sealing element can be a right angle or a round angle, when the corner of the door sealing element is a round angle, the round radius of the corner is 2-20 cm, preferably 5-10 cm., the distance between the lower edge of the door sealing element and the bonding line of the flexible air barrier and the bottom air column is preferably controlled to be 5-50 mm.

In some embodiments, the airtight flexible curtain can also be made∪ type, ∩ type,

The model is,

Type ∪∩ combination type,

Combination, all-over, etc. except for the all-over type, the remaining airtight zippers, which have one side firmly adhered to the flexible airtight layer of the existing airtight tent, which are not adhered to the flexible airtight layer, are sealed by adhesion using a reusable tape, a double-sided tape, etc. in some embodiments, ∪∩ combination type, full-over type, etc,

The combined equal-overlapping lapping distance is controlled to be 5-15 cm.

As shown in fig. 19, one or more airtight doors with different sizes can be designed on the airtight tent according to the requirements, so that the requirements of cargo transportation, daily patrol of workers and the like are met, and the use is more flexible.

The utility model discloses compare in current inflatable tent have following advantage:

the multi-layer flexible airtight door of the airtight tent adopts the door sealing element to fix and the multi-layer airtight soft curtain to seal, and has the advantages of simple structural design, convenient operation and use and effectively ensures the low-oxygen storage environment in the tent.

And (II) the airtight tent is flexible in design, and the number of layers of the airtight soft curtain can be increased or reduced according to actual requirements. The airtight door can also be designed into one or more airtight doors with different sizes, so that the use is more convenient.

Fig. 20-22 are schematic diagrams of an airtight interface for a flexible air barrier according to an embodiment of the present invention. Another factor affecting the air tightness of an airtight tent is the gas circuits and cables going in and out of the airtight tent. The utility model discloses a set up the problem that gas circuit and cable were solved to airtight interface on airtight tent's the flexible air tight layer. The airtight interface may include one or more air circuit interfaces and/or one or more cable interfaces. However, typically an airtight interface comprises only one of the air inlet, the air outlet and a cable interface, without any two of them being provided in the same airtight interface. Of course, other air path interfaces may be configured as the same airtight interface as the air inlet, the air outlet, or the cable interface.

The technical solution of the present invention will be further described below by taking an airtight interface including an exhaust port as an example. As shown in fig. 20, the airtight interface 2000 includes: an exhaust port 2002, an oxygen content detection port 2004, a temperature and humidity detection port 2006 and a multilayer thickened airtight layer 2008; one or more of the exhaust port 2002, the oxygen content detection port 2004, the temperature and humidity detection port 2006 and the gas detection port 2010 are arranged on the multilayer thickened airtight layer 2008. Of course, it may be distributed on the plurality of thickened airtight membranes 2008 according to the requirement to ensure the firm installation of the valve body pipeline and the like. For example, exhaust port 2002, oxygen content detection port 2004, gas detection port 2010, and the like are provided in one or more thick airtight layers 2008.

In some embodiments, multilayer thickened air barrier 2008 includes multiple layers of bonded air barrier films having a total bond thickness of 1-10 mm, preferably 3-8 mm. In some embodiments, multilayer thickened air barrier 2008 may include multiple air barrier films bonded within and/or outside of a flexible air barrier to increase the thickness and strength of the opening location and to make the connection with rigid valve bodies, pipelines, etc. more secure and stable.

In some embodiments, multilayer thickened air barrier 2008 is spaced at least 30-50 mm from each via edge. In some embodiments, the multi-layer thickened airtight layer 2008 is not less than 50-200 mm from the edge of the inner air column. In some embodiments, adjacent via edges are retained a distance of 30-50 mm. The shape of the multi-layer thickened airtight layer 2008 is not limited, including but not limited to rectangle, square, circle, etc., and should match with the specifications of valves, pipelines, etc., to ensure the valve body pipelines, etc., to be installed firmly.

As shown in fig. 21 and 22, the multi-layer thickened airtight layer 2008 can be reserved at diagonal positions such as a plane and a vertical plane of the airtight tent, and can also be laid diagonally through a built-in pipeline, so as to meet the requirements of the airtight tent for air inlet, air outlet, detection and the like.

Fig. 23 is a schematic view of an air path interface of a flexible air barrier according to an embodiment of the present invention. As shown, the air path interface 2300 includes: a plate penetrating joint 2301 and a fastening bolt 2302, a plurality of sealing

rubber rings

2303 and 2304; wherein, the plate penetrating joint 2301 and the fastening bolt 2302 clamp a plurality of layers of thickened air-tight layers 2305 through sealing

rubber rings

2303 and 2304 to realize the sealing connection of the air passage. Valve component 2306 (e.g., a ball valve) is in turn sealingly connected to a bulkhead fitting 2301.

The specific installation process is that the plate penetrating joint 2301 and the fastening bolt 2302 are taken down firstly; stringing a sealing rubber ring 2303 on the plate penetrating joint 2301, penetrating the plate penetrating joint 2301 into an air inlet of a multi-layer thickened air-tight layer 2305, then padding the sealing rubber ring 2304, and then screwing a matched fastening bolt 2302; and then the corresponding valve assembly 2306.

In the embodiment of fig. 23, when a pipeline valve is installed on the multilayer thickened airtight membrane, a threading plate joint or the like with a thread fastening function is used to firmly install the pipeline valve with the multilayer thickened airtight membrane; the sealing component such as a flexible silica gel pad, a rubber ring and the like or the sealant can be matched for use, so that the integral sealing performance of joints such as pipeline valves of the airtight tent is ensured.

In some embodiments, the pipeline valve mounted on the multilayer thickened airtight membrane can be configured with a bracket, so as to avoid the problem that the valve pipeline and the like sag under the influence of self gravity.

The utility model discloses a flexible airtight tent, except the mobility, still have following advantage:

and (I) the air tightness is good. Not only can guarantee the stability of the hypoxic gas environment in the tent, but also can reduce the use frequency of nitrogen charging equipment, effectively reduces the use cost of oxygen reduction, and prolongs the service life of the nitrogen charging equipment.

And (II) the structure is stable. The whole frame structure formed by the air columns has good pressure resistance and can ensure the stability of the tent and the durability of the strength of the whole structure.

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. An inflatable, airtight tent, comprising:

one or more gas columns; and

one or more flexible air barriers;

wherein the one or more flexible airtight layers and the one or more air columns form an airtight space.

2. The inflatable, airtight tent of claim 1 wherein one or more of the air columns is a flexible, airtight material; one or more air columns provide support for the air-tight space when inflated.

3. The inflatable airtight tent of claim 1, wherein the one or more air columns have a diameter of 200 to 500mm and an inflation pressure of 15 to 30 kPa.

4. The inflatable, airtight tent of claim 1, wherein the daily pressure relief amount of one or more air columns is 50 to 2000 Pa/day.

5. The inflatable, airtight tent of claim 1 wherein the daily pressure relief amount of one or more of the air columns is less than 500 Pa/day.

6. The inflatable, airtight tent of claim 1 wherein the one or more air columns comprise a vertical column and a bottom air column, wherein the vertical column and the bottom air column are isolated.

7. The inflatable, airtight tent of claim 6 wherein the vertical columns are vertical columns.

8. The inflatable, airtight tent of claim 7, wherein the interval between the facade air pillars is 1-3 m.

9. The inflatable, airtight tent of claim 6 wherein the one or more gas columns comprise a top gas column, the top gas column being one of flat top, dome top, triangular top, tetrahedral top.

10. The inflatable, airtight tent of claim 6 wherein the flexible, airtight layer comprises an airtight door.

11. The inflatable, airtight tent of claim 10, wherein the airtight door has a width of less than 3m and a height of less than 4 m.

12. The inflatable, airtight tent of claim 10 wherein the airtight door comprises a flexible airtight door and a multi-layered flexible soft curtain.

13. The inflatable, airtight tent of claim 1 wherein the gas column includes a polymeric interface thereon, the polymeric interface including one or more of an inflation port, a pressure measurement valve, and a safety valve.

14. The inflatable, airtight tent of claim 1 wherein the flexible, airtight layer includes a combination interface thereon, the combination interface comprising: one or more of an air inlet or an air outlet, an oxygen content detection port, a temperature and humidity detection port and a gas detection port.

15. The inflatable airtight tent of claim 1, wherein the airtight space has a ventilation rate of 0.05d or less^-1。

16. The inflatable, airtight tent of claim 1 wherein the airtight space thereinThe intermittent ventilation rate is less than or equal to 0.02d^-1。

17. The inflatable airtight tent of claim 1, wherein the air exchange rate of the airtight space is measured by an oxygen increase method using the following calculation formula:

ΔCt＝A·exp(-n·t)

wherein, the delta Ct is the difference value of the oxygen content inside and outside the airtight tent at the time of t; a is the difference value of the oxygen content inside and outside the tent when the measurement is started; n is the air exchange rate of the tent; t is the time of measurement.

18. The inflatable airtight tent of claim 1, wherein the airtight space has a volume of 6m or more³。

19. The inflatable airtight tent of claim 1, wherein the width dimension of the bonding line between the air column and the flexible airtight layer is 5 to 50 mm.

20. The inflatable airtight tent of claim 1, wherein the width dimension of the bonding line between the air column and the flexible airtight layer is not less than 8 mm.

21. The inflatable, airtight tent of any of claims 19 or 20, wherein the bonding line of the air column to the flexible, airtight layer is located above or below the bonding line of the air column itself, with reference to the bonding line of the air column itself.

22. The inflatable, airtight tent of claim 1 wherein the flexible, airtight layer comprises an opaque or translucent airtight film material.

23. An inflatable, airtight tent, comprising:

a top gas column;

a facade gas column;

a bottom gas column; and

one or more flexible air barriers;

the flexible airtight layers are positioned between the top air column and the vertical air column and are in airtight connection with the top air column and the vertical air column and the bottom air column.