Pressure-bearing greenhouse

Abstract

The utility model discloses a pressure-bearing greenhouse, and relates to the technical field of contaminated soil excavation. The pressure-bearing greenhouse film body comprises a film body, an air supply system arranged at an air supply outlet of the film body and an air exhaust system arranged at an air exhaust outlet of the film body, and in the operation process of the air supply system and the air exhaust system, the pressure in the working space can be larger than that of the external space on the outer side of the film body, so that the pressure in the working space is larger than that of the external space on the outer side of the film body. Therefore, a stable cover body shape is formed. According to the pressure-bearing greenhouse, the working space is formed through air pressure supporting, the arrangement of a supporting structure is omitted, therefore, the size limitation of the supporting structure is eliminated, the application range is expanded, the pressure-bearing greenhouse is particularly suitable for a large-area working scene, and the manufacturing cost of the supporting structure is further saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of polluted soil excavation, particularly relates to a pressure-bearing type greenhouse. BACKGROUND

[0002] The greenhouse is a facility widely used in agricultural, environmental protection and industrial fields, and plays an important role especially in the process of polluted soil treatment. For example, in the process of excavating polluted soil, the greenhouse is used to cover the polluted soil to reduce the diffusion of pollutants or contaminated air.

[0003] The existing greenhouse usually adopts the negative pressure principle, that is, the pressure in the working space of the membrane body is reduced by the air extraction equipment to present negative pressure, and a support structure is arranged inside the working space, so that the membrane body can maintain a stable state.

[0004] However, when the above-mentioned greenhouse is applied to the excavation of large-area soil, a large-size support structure is required, and the large-size support structure is high in cost or difficult to realize. Therefore, the use scene of the greenhouse is very limited. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pressure-bearing type greenhouse, which aims to solve the technical problem that the use scene of the existing greenhouse is limited.

[0006] To achieve the above-mentioned purpose, the utility model provides a pressure-bearing type greenhouse, which comprises: a membrane body for covering soil, a working space is formed between the inner side of the membrane body and the soil; the membrane body is provided with an air supply port and an air exhaust port; an air supply system is arranged at the air supply port, and the air supply system is used for sending air into the working space; and an air exhaust system is arranged at the air exhaust port, and the air exhaust system is used for extracting air in the working space; wherein the air supply system and the air exhaust system can make the pressure in the working space greater than the pressure of the external space outside the membrane body during operation.

[0007] In an embodiment, further comprising: an isolation structure connected to the membrane body, and an isolation space is formed in the interior of the isolation structure; the isolation space can be selected to communicate with one of the working space and the external space.

[0008] In an embodiment, the isolation structure comprises: a transportation channel structure connected to the membrane body, and a transportation space for vehicle access is formed in the interior of the transportation channel structure, and the isolation space comprises the transportation space; the transportation channel structure comprises a first door body and a second door body correspondingly arranged at opposite ends of the transportation space; wherein in the state that the first door body is opened, the transportation space communicates with the working space; in the state that the second door body is opened, the transportation space communicates with the external space.

[0009] In an embodiment, the first door is arranged close to the membrane, and the second door is arranged away from the membrane.

[0010] In an embodiment, the membrane further has an entrance for personnel to enter or exit, and the isolation structure further comprises a rotating door arranged at the entrance, the rotating door being connected to the membrane; during rotation of the rotating door, the rotating door always closes the entrance.

[0011] In an embodiment, the rotating door comprises a door cover having a first opening in communication with the working space and a second opening in communication with the external space, a rotating shaft extending from a top of the door cover to a mounting ground, and at least three door wings each arranged around the rotating shaft; an included angle space for accommodating personnel is formed between two adjacent door wings, and the isolation space comprises the included angle space; during rotation of the rotating shaft, each included angle space is sequentially and alternately positioned at the first opening and / or the second opening.

[0012] In an embodiment, the isolation structure further comprises a foundation wall arranged along an edge of the membrane, and a pre-embedded part arranged along the edge of the membrane and partially embedded in the foundation wall, the pre-embedded part penetrating the membrane, and a compression part connected to the pre-embedded part and compression-bonded to the edge of the membrane.

[0013] In an embodiment, the pre-embedded part comprises an insertion part extending in a vertical direction, and an extension part extending transversely from one end of the insertion part embedded in the foundation wall; the compression part is screwed to one end of the insertion part exposed to the foundation wall.

[0014] In an embodiment, the isolation structure further comprises a steel cable compression-bonded to an outer side of the membrane and extending from one side of the foundation wall to the other side of the foundation wall in a width direction and / or a length direction of the membrane.

[0015] In an embodiment, an outer wall of the steel cable is provided with a wrapping layer, and the wrapping layer is compression-bonded to the membrane.

[0016] The technical solution of this utility model, by setting up an air supply system and an exhaust system, ensures that the pressure inside the membrane body is greater than the pressure outside, allowing the membrane body 1 to maintain a stable cover shape, thereby forming a working space inside the membrane body 1. This pressure-bearing greenhouse forms the working space through air pressure support, eliminating the need for a supporting structure and thus overcoming the size limitations of the supporting structure, expanding its application range. It is understood that a large-sized membrane body 1 is easier to manufacture and transport than a large-sized steel structure support. Therefore, the pressure-bearing greenhouse provided by this utility model not only overcomes the size limitations of the supporting structure, enabling flexible use in more application scenarios, especially suitable for large-area work scenarios, but also saves on the manufacturing costs of the supporting structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A cross-sectional view along the thickness direction of the membrane in an embodiment of the pressure-bearing greenhouse provided by this utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of a medium-pressure greenhouse along the length of the membrane structure;

[0020] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0021] Figure 4 for Figure 2 A schematic diagram of the first three-dimensional structure of the revolving door in the image;

[0022] Figure 5 for Figure 2 A schematic diagram of the second three-dimensional structure of the revolving door in the diagram;

[0023] Figure 6 for Figure 1 A schematic diagram of the foundation wall of a medium-pressure greenhouse.

[0024] Explanation of reference numerals: 1, membrane body; 10, working space; 11, air supply port; 12, air exhaust port; 13, entrance and exit; 2, air supply system; 3, air exhaust system; 4, isolation structure; 41, transportation channel structure; 411, first door body; 412, second door body; 42, rotating door; 420, included angle space; 4201, first included angle space; 4202, second included angle space; 4203, third included angle space; 4204, fourth included angle space; 421, cover body; 4211, second opening; 422, rotating shaft; 423, door wing; 4231, first door wing; 4232, second door wing; 4233, third door wing; 4234, fourth door wing; 40, canvas; 5, external space; 6, base wall; 7, embedded part; 61, insertion part; 62, extension part; 8, compression part; 9, steel cable.

[0025] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0028] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, taking "A and / or B" as an example, including A solution, or B solution, or A and B solutions are satisfied. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0029] The existing greenhouse is provided with an air extraction device for extracting air from the interior of the greenhouse, so that the interior of the greenhouse is in a state of negative pressure, thereby preventing the diffusion of contaminated air in the interior of the greenhouse. The support structure is supported in the interior of the greenhouse to prevent the interior of the greenhouse from being extracted by the air extraction device, thereby maintaining a relatively stable working space 10 in the interior of the greenhouse to facilitate the excavation of the workers and / or equipment. However, since the interior of the greenhouse is under negative pressure, the working space 10 needs to rely on the support structure, which is limited by the size of the support structure. It can be understood that a large size support structure requires high cost or is difficult to realize.

[0030] Therefore, in order to get rid of the limitation of the support structure, the utility model provides a greenhouse with a working space 10 maintained at a positive pressure state, i.e. a pressure-bearing greenhouse, to enhance the flexibility of the application scenarios of the greenhouse and reduce the construction cost.

[0031] As shown in Figure 1 and Figure 2 The pressure-bearing greenhouse includes a membrane body 1, an air supply system 2 and an air exhaust system 3. The membrane body 1 is arranged above the soil, and can be arranged on the contaminated soil to be applied to the treatment of the contaminated soil. Of course, it can also be applied to other scenarios, such as a sports field. The material of the membrane body 1 can be plastic or canvas 40, as long as it is a foldable flexible material. For example, the membrane body 1 is made of white polyester fiber film material, the surface of which is treated with PVDF, and has flame retardant performance. The inner side of the membrane body 1 and the soil form a working space 10, which is an operable space for the workers and / or equipment excavating the soil.

[0032] The membrane body 1 is provided with an air supply port 11 and an air exhaust port 12 for the air supply system 2 and the air exhaust system 3 respectively. The air supply port 11 and the air exhaust port 12 can be provided with one or more than one respectively, and the air supply system 2 and the air exhaust system 3 can be provided with one or more than one respectively. The air supply system 2 is arranged at the air supply port 11, and is used to send air into the working space 10. The air supply system 2 can send the air in the external space 5 outside the membrane body 1 into the working space 10, or send the gas (such as clean air containing oxygen) in the special device into the working space 10, so as to provide an oxygen environment for the personnel in the working space 10. Specifically, the air supply system 2 can include a blower and a matching pipeline assembly. The blower can be selected from centrifugal type or axial type, the former is suitable for large flow working conditions, and the latter is suitable for high lift occasions. Taking a small centrifugal blower as an example, a filter screen is arranged at the air inlet to prevent dust from entering, and a soft connecting pipe is connected to the air outlet and the main pipeline to facilitate later maintenance. At the same time, the pipeline design adopts a modular concept, and the standard units of each section are spliced by means of quick connectors, so as to facilitate flexible adjustment of the length. The air exhaust system 3 is arranged at the air exhaust port 12, and is used to exhaust the air in the working space 10. Specifically, the air exhaust system 3 can include an ejector and an exhaust gas purification device. The multi-stage nozzle array inside the ejector helps to accelerate the exhaust speed and reduce the noise level; the exhaust gas purification device such as an activated carbon adsorption tower or a wet scrubbing tower can remove harmful substances in a targeted manner to ensure that the emission meets the environmental protection regulations.

[0033] During the operation of the air supply system 2 and the air exhaust system 3, the pressure in the working space 10 inside the membrane body 1 is greater than the pressure in the external space 5 outside the plastic, so that the pressure in the working space 10 is positive with respect to the external space 5. In this way, the membrane body 1 is supported by the air pressure inside it and can maintain a stable cover shape, thereby stably covering the soil.

[0034] In order to make the pressure in the working space 10 greater than the pressure in the external space 5, specifically during operation, the air supply speed of the air supply system 2 can be greater than the air exhaust speed of the air exhaust system 3. In addition, since the air exhaust system mainly plays a role in purifying air when applied to the excavation of contaminated soil, when the pressure-bearing greenhouse is in use, there is no contaminated gas in the working space 10, so the air exhaust system can be omitted, or an opening can be directly made on the membrane body 1 to facilitate ventilation.

[0035] The utility model example provides a pressure type greenhouse, including membrane body 1, air supply system 2 and exhaust system 3, membrane body 1 is used for covering on soil, and the inside of membrane body 1 and soil form working space 10 between, membrane body 1 is provided with air inlet 11 and exhaust port 12, air supply system 2 sets up at air inlet 11, and air supply system 2 is used for sending air into working space 10, and, exhaust system 3 sets up at exhaust port 12, and exhaust system 3 is used for extracting the air in working space 10, wherein, air supply system 2 and exhaust system 3 in the process of operation, can make the pressure in working space 10 greater than the pressure of the outside space 5 of the outside of membrane body 1, the utility model example is through setting up air supply system 2 and exhaust system 3 and makes the pressure of the inside of membrane body 1 greater than the pressure of the outside of membrane body 1, makes membrane body 1 can maintain stable cover body 421 shape, to form working space 10 in the inside of membrane body 1, that is to say, the pressure support of this pressure type greenhouse utilizes the inside of membrane body 1 and forms cover body 421 shape, namely forms working space 10, this pressure type greenhouse dispenses with the setting of support structure, to get rid of the size limit of support structure, expands the application range, it can be understood that the membrane body 1 of large size is more easily made relative to the steel structure support piece of large size, and is more easily transported, therefore, the pressure type greenhouse provided by the utility model not only gets rid of the size limit of support structure, can be flexibly used in more use scenarios, especially applicable to large area working scene, also dispenses with the manufacturing cost of support structure.

[0036] Please refer to Figure 1 It can be understood that the working space 10 in the inside of the membrane body 1 is in a positive pressure state, and the gas in the membrane body 1 is prone to leakage; especially when the pressure type greenhouse is applied to the excavation of contaminated soil, the contaminated gas in the membrane body 1 will leak during the process of the construction personnel entering and / or the car transporting the soil.

[0037] In an embodiment of the utility model, in order to reduce the leakage of the contaminated gas in the membrane body 1, the pressure type greenhouse further comprises an isolation structure 4, please refer to Figure 2 The isolation structure 4 is connected to the membrane body 1, and an isolation space is formed in the inside of the isolation structure 4. Please refer to Figure 1 and Figure 2 The isolation space can be communicated with one of the working space 10 and the external space 5, that is, the isolation space can be communicated with only the working space 10 or only the external space 5. It can be understood that the state that the isolation space is communicated with only the working space 10 and the state that the isolation space is communicated with only the external space 5 do not form the state that the working space 10 is communicated with the external space 5, therefore, the contaminated air in the working space 10 will not leak to the external space 5.

[0038] Please refer to Figure 1 and Figure 2The process that the personnel or the vehicle enters the working space 10 from the external space 5 is that: firstly, in the state that the isolation space is only communicated with the external space 5, the personnel or the vehicle enters the isolation space from the external space 5; then, in the state that the isolation space is only communicated with the working space 10, the personnel or the vehicle enters the working space 10 from the isolation space.

[0039] The utility model example through setting up isolation structure 4, this isolation structure 4 connects membrane body 1, and the inside of isolation structure 4 is formed with isolation space;Isolation space can select and communicate with one of working space 10 and external space 5.Such, working space 10 and external space 5 are separated by isolation structure 4 directly all the time, and thus the contaminated gas in working space 10 is difficult to reach external space 5, namely reduce the contaminated air in membrane body 1 leakage to external space 5;Also facilitate the personnel or the vehicle's entry and exit.

[0040] In the utility model one embodiment, please refer to Figure 2 Isolation structure 4 includes transport passage structure 41.Transport passage structure 41 connects membrane body 1, exemplarily: canvas 40 can be set between transport passage structure 41 and membrane body 1, and this canvas 40 makes transport passage structure 41 and membrane body 1 form soft connection;Since canvas 40 can adaptively deform, then when the transport vehicle passes through from the inside of transport passage structure 41, canvas 40 can reduce the direct impact on membrane body 1, avoids the breakage of membrane body 1;Of course, the setting of canvas 40 also helps membrane body 1 to resist the deformation caused by wind force.

[0041] Please refer to Figure 3 Transport passage structure 41 forms transport space for the entry and exit of vehicle in the inside, and this transport space belongs to one of the isolation space.The transport passage structure 41 includes the first door body 411 and the second door body 412 that are correspondingly arranged at opposite ends of the transport space;Wherein, in the state that the first door body 411 is opened, the transport space is communicated with the working space 10;In the state that the second door body 412 is opened, the transport space is communicated with the external space 5.

[0042] It can be understood that, in order to reduce the pollution space of working space 10 excretion, generally, the first door body 411 and the second door body 412 all maintain the closed state.If the vehicle needs to enter the working space 10 from the external space 5, then: first open the second door body 412, close the second door body 412 after the vehicle completely enters the transport space from the external space 5, then open the first door body 411.The opposite is also true.

[0043] The isolation structure 4 of the utility model example comprises a transportation passage structure 41, the transportation passage structure 41 is connected membrane body 1, the inside of transportation passage structure 41 is formed with the transportation space for the vehicle to go in and out, and the isolation space comprises the transportation space;The transportation passage structure 41 comprises a first door body 411 and a second door body 412 that are correspondingly arranged at opposite ends of the transportation space;Wherein, in the state that the first door body 411 is opened, the transportation space is communicated with the working space 10;In the state that the second door body 412 is opened, the transportation space is communicated with the external space 5.By only opening one of the first door body 411 and the second door body 412, the partition between the working space 10 and the external space 5 is realized, that is, the pollution air in the working space 10 is reduced to leak out.Meanwhile, the transportation space can accommodate vehicles, so that vehicles can go in and out of the transportation space, and then can go in and out of the working space 10.And, the setting structure is simple and easy to realize.

[0044] In an embodiment of the utility model, please refer to Figure 3 , the first door body 411 is arranged close to the membrane body 1, and the second door body 412 is arranged away from the membrane body 1.In this way, the transportation passage structure 41 is completely located outside the membrane body 1, thereby reducing the occupation of the transportation space to the working space 10.

[0045] In an embodiment of the utility model, please refer to Figure 2 , the isolation structure 4 further comprises a revolving door 42.The membrane body 1 is further provided with an entrance and exit for personnel to go in and out, the revolving door 42 is arranged at the entrance and exit, and the revolving door 42 is connected to the membrane body 1.The way that the revolving door 42 is connected to the membrane body 1 can also adopt the soft connection mode of the canvas 40, which will not be described here again.In the process of rotating the revolving door 42, the revolving door 42 always closes the entrance and exit.In this way, the setting of the revolving door 42 not only reduces the leakage of the pollution air in the membrane body 1, but also facilitates personnel to go in and out.

[0046] In an embodiment of the utility model, please refer to Figure 4 and Figure 5 , the revolving door 42 comprises a door cover 421, a rotating shaft 422 and at least three door wings 423 Figure 4 It is shown that the revolving door 42 has four door wings 423.The door cover 421 has a first opening (the first opening is not shown in the figure, but it can be inferred from Figure 4 that the position of the first opening is opposite to the position of the second opening 4211) communicated with the working space 10 and a second opening 4211 communicated with the external space 5.

[0047] Specifically, please refer to Figure 4 and Figure 5, the rotating shaft 422 extends from the top of the door cover 421 to the installation ground; each door wing 423 is arranged around the rotating shaft 422; the included angle space 420 for accommodating personnel is formed between adjacent two door wings 423, and the included angle space 420 belongs to one of the isolation spaces; in the rotating process of the rotating shaft 422, each included angle space 420 reaches the first opening and / or the second opening 4211 in turn.

[0048] Please refer to Figure 4 and Figure 5 , the principle of how the rotating door 42 closes the entrance of the film body 1 in the process of personnel access, taking the four included angle spaces 420 (first included angle space 4201, second included angle space 4202, third included angle space 4203 and fourth included angle space 4204) in the figure as an example: when the first included angle space 4201 is close to the second opening 4211, the second included angle space 4202 is away from the second opening 4211, the first door wing 4231 and the third door wing 4233 close the entrance of the film body 1; when the first included angle space 420 is opposite to the second opening 4211, the third door wing 4233 and the fourth door wing 4234 close the entrance of the film body 1; the other states of the included angle space 420 are not described herein. In this way, after personnel enter any one of the included angle spaces 420, they can move from the external space 5 to the working space 10, or from the working space 10 to the external space 5.

[0049] The rotating door 42 of the utility model example comprises a door cover, a rotating shaft 422 and at least three door wings 423; the door cover is provided with a first opening communicated with the working space 10 and a second opening 4211 communicated with the external space 5; the rotating shaft 422 extends from the top of the door cover to the installation ground; each door wing 423 is arranged around the rotating shaft 422; the included angle space 420 for accommodating personnel is formed between adjacent two door wings 423, and the isolation space comprises the included angle space 420; in the rotating process of the rotating shaft 422, each included angle space 420 reaches the first opening and / or the second opening 4211 in turn. In this way, the door wing 423 and the cover body 421 structure of the rotating door 42 make the working space 10 and the external space 5 be cut off, and sealing is realized.

[0050] In an embodiment of the utility model, please refer to Figure 6The pressure-bearing greenhouse also includes a foundation wall 6, embedded parts 7, and clamping parts 8. The foundation wall 6 is set along the edge of the membrane 1; exemplaryly, the foundation wall 6 can be cast using building materials such as mortar, pebbles, or plain cement slurry. The embedded parts 7 are set along the edge of the membrane 1 and are partially embedded within the foundation wall 6. The embedded parts 7 penetrate the membrane 1, and the clamping parts 8 connect to the embedded parts 7 and press against the edge of the membrane 1. Thus, the edge of the membrane 1 is locked and sealed.

[0051] In one embodiment of this utility model, please refer to Figure 6 The embedded part 7 includes an insertion part 71 and an extension part 72. The insertion part 71 extends vertically; the extension part 72 extends laterally from one end of the insertion part 71 embedded in the foundation wall 6; wherein, the clamping part 8 is screwed to the insertion part 71 and exposed at one end of the foundation wall 6.

[0052] This utility model embodiment uses a pre-embedded part 7 and a clamping part 8 connected by screws, which facilitates the disassembly of the membrane body 1 and allows the membrane body 1 to be reused.

[0053] In one embodiment of this utility model, please refer to Figure 2 The pressure-bearing greenhouse also includes 9 steel cables (in) Figure 2 (Represented by intersecting thin lines). Steel cable 9 is crimped to the outside of membrane 1, and extends along the width of membrane 1 (in...). Figure 2 (represented by a double arrow 'a' in the text) and / or the length direction (in the text) Figure 1 The foundation wall 6 on one side (represented by double arrow b) extends to the foundation wall 6 on the other side.

[0054] This utility model embodiment, through the setting of steel cable 9, can effectively resist weather factors such as wind, so that the membrane 1 can effectively maintain the shape of the cover.

[0055] In one embodiment of this utility model, please refer to Figure 2 The outer wall of the steel cable 9 is provided with a wrapping layer, which is pressed against the membrane 1. It is understood that the surface of the steel wire rope is wavy and made of rigid material; if it directly contacts the membrane 1, it can generate significant friction. This utility model embodiment, through the provision of the wrapping layer, can reduce the damage to the membrane 1 caused by friction from the steel wire rope.

[0056] For example, the wrapping layer can be made of a soft material such as plastic, which can further protect the membrane 1.

[0057] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A pressure-bearing greenhouse, characterized in that, The application relates to a film body for covering soil, wherein an inner side of the film body and the soil form a working space; the film body is provided with air supply ports and air exhaust ports; an air supply system is arranged at the air supply ports and used for supplying air into the working space; an air exhaust system is arranged at the air exhaust ports and used for exhausting air in the working space; and the air supply system and the air exhaust system can make the pressure in the working space greater than the pressure of an external space outside the film body during operation. The application further relates to an isolation structure connected to the film body and forming an isolation space inside the isolation structure; the isolation space can be selectively communicated with one of the working space and the external space. The isolation structure comprises a transportation channel structure connected to the film body and forming a transportation space for vehicle access inside the transportation channel structure; the isolation space comprises the transportation space; the transportation channel structure comprises a first door body and a second door body arranged at opposite ends of the transportation space in one-to-one correspondence; the transportation space is communicated with the working space when the first door body is opened; and the transportation space is communicated with the external space when the second door body is opened. The first door body is arranged close to the film body, and the second door body is arranged away from the film body. The film body is further provided with an entrance for personnel access; and the isolation structure further comprises a rotating door arranged at the entrance and connected to the film body; the rotating door always closes the entrance during rotation of the rotating door. The rotating door comprises a door cover having a first opening communicated with the working space and a second opening communicated with the external space; a rotating shaft extending from a top of the door cover to a mounting ground; and at least three door wings each arranged around the rotating shaft; an included angle space for accommodating personnel is formed between two adjacent door wings; and the isolation space comprises the included angle space; each included angle space sequentially reaches the first opening and / or the second opening during rotation of the rotating shaft.

2. The pressure tunnel according to claim 1, characterized in that The application further relates to a foundation wall arranged along edges of the film body; a pre-embedded part arranged along the edges of the film body and partially embedded in the foundation wall, the pre-embedded part penetrating the film body; and a compression part connected to the pre-embedded part and compressed to the edges of the film body. The pre-embedded part comprises an insertion part extending along a vertical direction; and an extension part extending laterally from one end of the insertion part embedded in the foundation wall; and the compression part is screwed to one end of the insertion part exposed to the foundation wall. The application further relates to a steel cable compressed to the outer side of the film body and extended from one side of the foundation wall to the other side of the foundation wall in the width direction and / or the length direction of the film body.

3. The pressure tunnel according to claim 2, characterized in that An outer wall of the steel cable is provided with a wrapping layer compressed to the film body. ​ ​ 4. The pressure tunnel according to claim 3, characterized in that ​ 5. The pressure tunnel according to claim 2, characterized in that ​ ​ 6. The pressure tunnel according to claim 5, characterized in that ​ ​ ​ ​ ​ 7. The pressure tunnel according to claim 1, characterized in that ​ ​ ​ ​ 8. The pressure tunnel according to claim 7, characterized in that ​ ​ ​ ​ 9. The pressure tunnel according to claim 7, characterized in that ​ ​ 10. The pressure tunnel according to claim 9, characterized in that ​

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