Waist beam type gas coat for hot chamber maintenance based on double-cover structure and use method of waist beam type gas coat

Abstract

The invention relates to a waist beam type gas coat for hot chamber maintenance based on a double-cover structure. The waist beam type gas coat comprises a gas coat upper half body, a gas coat lower half body, a gas supply system and the double-cover structure, the air clothes upper half body comprises a helmet, gloves and an air clothes upper half body main body; the lower air garment body comprises foot sleeves, a lower air garment body main body outer layer and a lower air garment body main body inner layer; the gas supply system is connected with the gas coat lower half body and the gas coat upper half body through pipelines; when the maintenance range can be reached, the half-man clothes are used for carrying out maintenance operation; and when the maintenance range is unreachable, the personnel switches the half-person clothes into a waist-shaped whole-body gas clothes using mode, so that the problem that the half-person clothes of the box body in the existing box chamber in the spent fuel field cannot be maintained is solved.

Description

Technical Field

[0001] The invention relates to the technical field of spent fuel, and specifically to a waist-type gas suit for hot chamber maintenance based on a double-cover structure and a method of using the same. Background Art

[0002] In the field of spent fuel and radiation processing and other production and testing sites, wearing protective gas suits is a basic radiation protection method to prevent workers from internal radiation hazards caused by ingesting radioactive aerosols. However, in a certain existing project process hot room, the maintenance principle of the box room is hybrid maintenance, and its work flow is: personnel in the maintenance room 16 use the half-person suit 13 set between the maintenance room 16 and the box body in the hot room 14 for personnel protection to carry out maintenance work ( Figure 1 ), or operate the manipulator in the operation room to carry out inspection and maintenance work. The problems with this method are: the inspection path of some equipment parts in the hot chamber is inaccessible, and the operation range of the half-man suit and the manipulator cannot cover all the equipment in the box in the hot chamber. When the equipment fails, the existing inspection path is inaccessible, which restricts the process operation. Therefore, a waist-type air suit suitable for hot chamber maintenance is designed based on a double-cover structure to solve the problem that the existing half-man suit is inaccessible for inspection. Summary of the invention

[0003] The purpose of the present invention is to design a waist-type gas suit based on a double-cover structure for hot chamber maintenance and a use method thereof, so as to solve the problem that the existing half-person suit is inaccessible for maintenance.

[0004] The technical solution of the present invention is as follows: a waist-type gas suit for hot chamber maintenance based on a double-cover structure, comprising an upper body of the gas suit, a lower body of the gas suit, an air supply system, and a double-cover structure;

[0005] The upper body of the air suit includes a helmet, gloves, and the main body of the upper body of the air suit;

[0006] The lower body of the gas suit includes foot covers, an outer layer of the main body of the lower body of the gas suit, and an inner layer of the main body of the lower body of the gas suit;

[0007] The air supply system is connected to the lower body of the air suit and the upper body of the air suit through pipelines;

[0008] The hot chamber sealing cover is located between the box body and the maintenance small room in the hot chamber, and a half-clothing hole receiving plate is opened on the hot chamber sealing cover.

[0009] The helmet is made of transparent material and is welded to the upper body of the air suit.

[0010] The palm and toes of the glove are provided with raised structures, and the sole of the foot is provided with a raised structure.

[0011] The upper body of the air suit has an orange petal pleated structure between the elbow joints and the lower body of the air suit has an orange petal pleated structure between the knee joints.

[0012] When the half-human garment is in use mode, the upper body of the air garment is installed on the half-human garment hole receiving plate through a double cover mechanism.

[0013] When the whole body air suit is in use mode, the outer layer of the lower body of the air suit is connected to the half-human clothing hole receiving plate, and the inner layer of the lower body of the air suit is connected to the upper body of the air suit.

[0014] A method for using a waist-type gas suit for hot chamber maintenance based on a double-cover structure. When the maintenance range in a box in the hot chamber is accessible to personnel: the personnel enter the maintenance room, the air supply system supplies air to the upper body of the gas suit, the upper body of the gas suit is installed at the half-clothing hole receiving plate through the double-cover mechanism, and the personnel enter the box in the hot chamber with the help of the upper body of the gas suit to carry out work.

[0015] A method for using a waist-type gas suit for hot chamber maintenance based on a double-cover structure comprises the following steps:

[0016] S1: Install the upper body of the gas suit on the half-man suit hole receiving plate in advance, and the personnel enter the maintenance room, put on the lower body of the gas suit, and move to the half-man suit hole receiving plate;

[0017] S2: Connect the lower body of the gas suit to the gas supply system of the gas suit; the personnel drill into the half-human suit hole receiving plate and put on the upper body of the gas suit, connect the outer layer of the lower body of the gas suit with the half-human suit hole receiving plate, and connect the inner layer of the lower body of the gas suit with the upper body of the gas suit;

[0018] S3: Disconnect the upper body of the gas suit from the half-human suit hole receiving plate;

[0019] S4: Personnel enter the box in the hot room to carry out inspection and maintenance work;

[0020] S5: After the operation is completed, the personnel returns to the half-man suit hole receiving plate, puts on the outer layer of the lower body of the gas suit, and makes the outer layer of the lower body of the gas suit connect with the inner layer of the lower body of the gas suit, and the upper body of the gas suit connects with the half-man suit hole receiving plate, the outer layer of the lower body of the gas suit is detached from the half-man suit hole receiving plate, and the personnel enters the maintenance room;

[0021] S6: The personnel takes off the lower part of the gas suit and leaves the maintenance room.

[0022] In S2, the outer layer of the gas suit lower body of the gas suit lower body is connected with the half-human clothing hole receiving plate through the double cover structure, and the inner layer of the gas suit lower body of the gas suit lower body is connected with the gas suit upper body through the double cover structure.

[0023] In S3, the upper body of the air suit is separated from the half-human suit hole receiving plate by the double cover structure.

[0024] The remarkable effects of the present invention are:

[0025] (1) Based on the research on the double-cover structure, a waist-type gas suit structure is designed for hot chamber maintenance. When the maintenance range is accessible, a half-man suit is used to carry out maintenance work; when the maintenance range is not accessible, the personnel switch the half-man suit to a waist-type full-body gas suit, solving the problem that the half-man suit is not accessible for maintenance in the existing chambers in the spent fuel field.

[0026] (2) When the waist-type full-body gas suit is in standby mode, the upper part of the gas suit can serve as a sealed and contained boundary between the box in the hot room and the maintenance room. The atmospheres between the box in the hot room and the maintenance room are isolated from each other, and the atmosphere in the interlayer of the lower part of the gas suit is isolated from the external atmosphere through a double cover structure. During use, the lower part of the gas suit (outer layer) is connected to the half-clothing hole plate, which can serve as a sealed and contained boundary between the box in the hot room and the maintenance room to isolate the atmosphere. The full-body gas suit composed of the upper part of the gas suit and the lower part of the gas suit (inner layer) is a sealed and contained boundary between the internal atmosphere of the box in the hot room and the personnel to isolate the atmosphere. When personnel use the gas suit, the radioactive substances contaminated on the surface are always isolated from the clean external atmosphere, avoiding the problem of cross-contamination caused by the contaminated atmosphere of the personnel using the gas suit and the clean atmosphere. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the existing maintenance work (top view);

[0028] Figure 2 This is a schematic diagram of a waist-type air suit;

[0029] Figure 3 Schematic diagram of the use of half-man suit when it is accessible for maintenance (viewed from above);

[0030] Figure 4 Schematic diagram of the use of a full-body air suit when maintenance is not possible (viewed from above);

[0031] Figure 5 Schematic diagram of the use of waist-type air suit (top view)

[0032] Marks and corresponding parts names in the attached drawings:

[0033] In the figure: 11—personnel; 12—original air supply system; 13—half-man clothing; 14—box in hot room; 15—half-man clothing hole receiving tray; 16—inspection room;

[0034] 21—lower part of the gas suit (double layer); 22—upper part of the gas suit; 23—sealing cover of the hot chamber; 24—double cover structure; 25—gas supply system. DETAILED DESCRIPTION

[0035] Many specific details are described in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0036] The terms used in one or more embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present application. The singular forms of "a", "said" and "the" used in one or more embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present application refers to and includes any or all possible combinations of one or more associated listed items.

[0037] It should be understood that, although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present application, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present application, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0039] A waist-type gas suit for hot chamber maintenance based on a double-cover structure, which is used in a box body 14 in a hot chamber; the box body 14 in the hot chamber is a radiation area, and the maintenance small room 16 is a non-radiation area, the box body 14 in the hot chamber and the maintenance small room 16 are separated by a hot chamber sealing cover 23, and the hot chamber sealing cover 23 is provided with a half-clothing hole receiving plate 15;

[0040] The gas suit comprises an upper body 22, a lower body (double layer) 21, an air supply system 25, and a double cover structure 24. Figure 2 As shown:

[0041] The upper body of the gas suit 22 includes a helmet, gloves, and the main body of the upper body of the gas suit. The helmet is made of transparent material, which is convenient for personnel to observe during maintenance, and is welded to the main body of the upper body of the gas suit; protrusions are set in the palm and fingers of the gloves to increase the friction when the personnel pick up items, and the gloves and the main body of the gas suit are formed in one step; the elbow joints of the upper body of the gas suit adopt an orange segment pleated structure to increase the use space of the elbow joints when the personnel use the gas suit to work, and reduce the resistance of the elbow joints.

[0042] The lower body 21 of the air suit has a double-layer structure, including foot covers, an outer layer of the main body of the lower body of the air suit, and an inner layer of the main body of the lower body of the air suit. The foot covers and the main body of the air suit are formed at one time, and a protrusion is set on the sole of the foot to increase the friction when in contact with the ground; the outer layer of the main body of the lower body of the air suit is larger than the inner layer, which is convenient for personnel replacement; the knee joint of the main body of the lower body of the air suit adopts an orange-segment pleated structure to increase the space for personnel use and reduce resistance during use.

[0043] The air supply system 25 ensures the balanced distribution of the air path in the air suit and the smoothness of the gas exchange.

[0044] Double cover structure 24: respectively installed on the lower body 21 (inner layer) of the gas suit, the lower body 21 (outer layer) of the gas suit, the upper body 22 of the gas suit, and the half-man suit hole receiving plate 15. When it is a half-man suit use mode: the upper body 22 of the gas suit can be used as a sealed and contained boundary between the internal atmosphere of the box 14 in the hot room and the maintenance small room 16; when it is a full-body gas suit use mode: the lower body 21 (outer layer) of the gas suit is connected to the half-man suit hole receiving plate 15, and the lower body (inner layer) 21 of the gas suit is connected to the upper body 22 of the gas suit. At this time, the lower body 21 (outer layer) of the gas suit is the sealed and contained boundary between the box 14 in the hot room and the maintenance small room 16, and the full-body gas suit composed of the upper body 22 of the gas suit and the lower body 21 (inner layer) of the gas suit is the sealed and contained boundary between the internal atmosphere of the box 14 in the hot room and the personnel.

[0045] In the example of the present invention, the upper body of the waist-type full-body air suit is installed on the half-clothing hole receiving plate 15 of the heat chamber sealing cover 23 through the double cover mechanism 24, which is the sealing and containing boundary between the middle box body and the maintenance room.

[0046] 1. When the maintenance range is accessible:

[0047] ① Personnel enter the maintenance room and connect to the gas supply system 25 for gas supply;

[0048] ② The personnel use the upper body of the gas suit 22 to directly carry out the maintenance work of the equipment in the hot room.

[0049] 2. When the maintenance range is unreachable ( Figure 5 ):

[0050] ① The personnel enter the inspection room, put on the lower body 21 (double layer) of the gas suit, and move to the half-clothing hole receiving plate 15 of the hot chamber sealing cover 23;

[0051] ② Connect the gas supply system 25 through the gas suit lower body 21 (double layer); connect the gas suit lower body 21 (outer layer) with the half-clothing hole receiving plate 15 through the double cover structure 24, and connect the inner layer of the gas suit lower body 21 with the gas suit upper body 22 through the double cover structure 24;

[0052] ③ The upper body 22 of the air suit is separated from the half-clothes hole receiving plate 15 through the double cover structure 24;

[0053] ④ Personnel use waist-type full-body air suits to carry out inspection and maintenance work in the hot room;

[0054] ⑤ After the operation is completed, the personnel arrive at the half-man suit hole receiving plate 15, put on the lower body 21 (outer layer) of the gas suit, make the lower body 21 (outer layer) of the gas suit contact with the lower body 21 (inner layer), the upper body 22 of the gas suit contact with the half-man suit hole receiving plate 15, and the outer layer of the lower body of the full-body gas suit is detached from the half-man suit hole receiving plate 15;

[0055] ⑥ The personnel takes off the lower part of the gas suit 21 (double layer) and leaves the maintenance area.

[0056] In the example of the present invention, the structural design is reasonable, and the problem of inaccessibility of existing half-man clothing maintenance is solved under the premise of achieving the function.

[0057] The above description is only a preferred embodiment of this patent and is not intended to limit this patent. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this patent should be included in the scope of protection of this patent.

[0058] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described action sequence, because according to the present application, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0059] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The optional embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the present application. The present application selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can understand and use the present application well.

Claims

1. A waist-type gas suit for hot room maintenance based on a double-cover structure, characterized in that: It comprises an upper body of an air suit (22), a lower body of an air suit (21), an air supply system (25), and a double cover structure (24); The air suit upper body (22) comprises a helmet, gloves and an air suit upper body body; The air suit lower body (21) comprises foot covers, an outer layer of the air suit lower body main body, and an inner layer of the air suit lower body main body; The air supply system (25) is connected to the lower body (21) and the upper body (22) of the air suit through pipelines; The hot chamber sealing cover (23) is located between the box body (14) and the maintenance small room (16) in the hot chamber, and a half-clothing hole receiving plate (15) is opened on the hot chamber sealing cover (23).

2. According to claim 1, a waist-type gas suit for hot chamber maintenance based on a double-cover structure is characterized in that: The helmet is made of transparent material and is welded to the upper body of the air suit.

3. According to claim 1, a waist-type gas suit for hot chamber maintenance based on a double-cover structure is characterized in that: The palm and toes of the glove are provided with raised structures, and the sole of the foot is provided with a raised structure.

4. According to claim 1, a waist-type gas suit for hot chamber maintenance based on a double-cover structure is characterized in that: The upper body of the air suit has an orange petal pleated structure between the elbow joints and the lower body of the air suit has an orange petal pleated structure between the knee joints.

5. According to claim 1, a waist-type gas suit for hot chamber maintenance based on a double-cover structure is characterized in that: When the half-man suit is in use mode, the upper body (22) of the air suit is installed on the half-man suit hole receiving plate (15) through the double cover mechanism (24).

6. According to claim 1, a waist-type gas suit for hot chamber maintenance based on a double-cover structure is characterized in that: When the whole body air suit is in use mode, the outer layer of the air suit lower body (21) is connected to the half-clothing hole receiving plate (15), and the inner layer of the air suit lower body (21) is connected to the air suit upper body (22).

7. A method for using a waist-type gas suit for hot room maintenance based on a double-cover structure, characterized in that: When the maintenance range in the box (14) in the hot chamber is accessible to personnel, the personnel enter the maintenance room (16), the air supply system (25) supplies air to the upper body (22) of the air suit, the upper body (22) of the air suit is installed on the half-clothing hole receiving plate (15) through the double cover mechanism (24), and the personnel enter the box (14) in the hot chamber with the help of the upper body (22) of the air suit to carry out work.

8. A method for using a waist-type gas suit for hot room maintenance based on a double-cover structure, characterized in that: The following steps are involved: S1: The upper body of the gas suit (22) is installed in advance at the half-man suit hole receiving plate (15), and the personnel enter the maintenance room (16), put on the lower body of the gas suit (21), and move to the half-man suit hole receiving plate (15); S2: Connect the gas suit lower body (21) to the gas suit air supply system (25); the person drills into the half-man suit hole receiving plate (15) and puts on the gas suit upper body (22), connects the outer layer of the gas suit lower body main body of the gas suit lower body (21) with the half-man suit hole receiving plate (15), and connects the inner layer of the gas suit lower body main body of the gas suit lower body (21) with the gas suit upper body (22); S3: Disconnect the upper body of the gas suit (22) from the half-man suit hole receiving plate (15); S4: personnel enter the box (14) in the hot chamber to carry out inspection and maintenance work; S5: After the operation is completed, the personnel returns to the half-man clothing hole receiving plate (15), puts on the outer layer of the lower body of the gas suit (21), and makes the outer layer of the lower body of the gas suit (21) contact with the inner layer of the lower body of the gas suit (21), and the upper body of the gas suit (22) is connected with the half-man clothing hole receiving plate (15), and the outer layer of the lower body of the gas suit (21) is disconnected from the half-man clothing hole receiving plate (15), and the personnel enters the maintenance room (16); S6: The personnel takes off the lower part of the gas suit (21) and leaves the inspection room (16).

9. The method for using the waist-type gas suit for hot chamber maintenance based on the double-cover structure according to claim 8 is characterized in that: In the above S2, the outer layer of the gas suit lower body (21) is connected to the half-clothing hole receiving plate (15) through the double cover structure (24), and the inner layer of the gas suit lower body (21) is connected to the gas suit upper body (22) through the double cover structure (24).

10. The method for using the waist-type gas suit for hot chamber maintenance based on a double-cover structure according to claim 8, characterized in that: In the above-mentioned S3, the upper body of the air suit (22) is separated from the half-man suit hole receiving plate (15) by means of the double cover structure (24).

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