CN114411986A - Laboratory sealing structure and construction method thereof - Google Patents
Laboratory sealing structure and construction method thereof Download PDFInfo
- Publication number
- CN114411986A CN114411986A CN202210168000.7A CN202210168000A CN114411986A CN 114411986 A CN114411986 A CN 114411986A CN 202210168000 A CN202210168000 A CN 202210168000A CN 114411986 A CN114411986 A CN 114411986A
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- laboratory
- stainless steel
- steel wallboard
- welding
- exhaust device
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- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 102
- 239000010935 stainless steel Substances 0.000 claims abstract description 102
- 238000003466 welding Methods 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000003292 glue Substances 0.000 claims abstract description 30
- 239000004814 polyurethane Substances 0.000 claims abstract description 20
- 229920002635 polyurethane Polymers 0.000 claims abstract description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 7
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 7
- 238000009434 installation Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000012634 fragment Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 229920006335 epoxy glue Polymers 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/08—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of metal, e.g. sheet metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/16—Flooring, e.g. parquet on flexible web, laid as flexible webs; Webs specially adapted for use as flooring; Parquet on flexible web
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/181—Insulating layers integrally formed with the flooring or the flooring elements
Abstract
The invention discloses a laboratory sealing structure which comprises a stainless steel wallboard, a first PVC coiled material and an exhaust device, wherein the stainless steel wallboard is arranged on the first PVC coiled material; the stainless steel wallboards are connected in a full-welding mode, and polyurethane glue is coated at the welding seams of the stainless steel wallboards; the first PVC coiled material is fixedly connected with the ground of a laboratory by utilizing polyurethane glue; epoxy resin glue is filled around the exhaust device and the stainless steel wallboard, the bottom of the exhaust device is in full-welding connection with the contact gap around the stainless steel wallboard, and the welding seam of the exhaust device is coated with silica gel. The invention also discloses a construction method of the laboratory sealing structure. The invention has reasonable structural design, realizes the omnibearing and efficient sealing of the side wall, the ground, the top, the exhaust device and the like of the laboratory, and ensures the structural maintenance performance of the laboratory.
Description
Technical Field
The invention relates to the technical field of laboratory sealing, in particular to a laboratory sealing structure and a construction method thereof.
Background
The BSL-3 laboratory is a biological safety protection three-level laboratory, which is short for short, the whole laboratory is completely sealed, and the inside of the laboratory is in a negative pressure state, so that the internal gas cannot leak to the outside to cause pollution. Through people flow, commodity circulation, air current unidirectional flow, ensure that the pollutant of the inside can not leak to the outside and cause the pollution, the safety of the operating personnel of core zone is guaranteed to the at utmost. The laboratory sets up twice buffers, and the first is the negative pressure, and the second buffers are in the both sides of one entering door, about one meter. The negative pressure requirement of each core workshop of the BSL-3 laboratory is high, the pressure difference value between the air pressure (negative pressure) and the outdoor atmospheric pressure is not less than 40Pa, and the pressure difference value (negative pressure) between the air pressure (negative pressure) and the adjacent area is not less than 15 Pa. In order to achieve the high negative pressure index, the requirement on the sealing performance of the enclosure structure is high.
Disclosure of Invention
The invention aims to provide a sealing structure for a laboratory and a construction method thereof, which can realize the omnibearing efficient sealing of the laboratory and ensure the structural maintenance performance of the laboratory.
The invention is realized by the following steps:
a laboratory sealing structure comprises a plurality of stainless steel wallboards which are spliced and installed on the side wall and the top of a laboratory, a first PVC coiled material which is paved and attached on the floor of the laboratory, and an exhaust device which is installed on the stainless steel wallboards on the top of the laboratory in a penetrating way;
fully welding and connecting the stainless steel wallboards, and coating polyurethane glue on welding seams of the stainless steel wallboards;
the first PVC coiled material is fixedly connected with the ground of a laboratory by utilizing polyurethane glue;
epoxy resin glue is filled around the exhaust device and the stainless steel wallboard, the bottom of the exhaust device is in full-welding connection with the contact gap around the stainless steel wallboard, and the welding seam of the exhaust device is coated with silica gel.
Install at the laboratory parapet the square pipe skeleton is connected with between stainless steel wallboard and the laboratory parapet, and install at the laboratory parapet it has the glass magnesium board to fill between stainless steel wallboard and the laboratory parapet.
Install at the laboratory room lateral wall both ends are all done the circular arc and are handled about the stainless steel wallboard, and install at the laboratory room lateral wall the welding of stainless steel wallboard corner has the reentrant corner strip.
Install at laboratory room lateral wall stainless steel wallboard lower extreme is spread through polyurethane glue and is pasted and be fixed with the second PVC coiled material, second PVC coiled material and first PVC coiled material overlap joint welding are in the same place.
Install at laboratory room lateral wall stainless steel wallboard installs and is used for right the sealing bead that second PVC coiled material tip compressed tightly.
Install at the laboratory top stainless steel wallboard up end is connected with the reinforcement fossil fragments, all be connected with a plurality of jibs between reinforcement fossil fragments and exhaust device and the laboratory top surface.
Laboratory seal structure still includes sealing door and window, sealing door and window full weld welding is on installing the stainless steel wallboard of laboratory lateral wall, and its welding seam department coats and is scribbled polyurethane glue.
A construction method of a laboratory sealing structure comprises the following steps:
s1, installing the side wall board of the laboratory: fixedly mounting corresponding stainless steel wallboards on the side wall of the laboratory chamber in sequence;
s2, installing a top plate of a laboratory: hoisting the corresponding stainless steel wallboard to a corresponding height, and fixing the hoisted stainless steel wallboard with the stainless steel wallboard arranged on the side wall of the laboratory chamber;
s3, installing a sealing door and window in a laboratory: transferring the sealed door and window to the installation position, and fixing the sealed door and window with the stainless steel wallboard by using spot welding;
s4, installing an exhaust device at the top of the laboratory: a hole is formed in a corresponding stainless steel wallboard at the top of the laboratory, the air exhaust device is hoisted into the hole, and the air exhaust device is fixedly sealed;
s5, seamless construction of laboratory ground: paving and sticking an integral first PVC coiled material on the ground of a laboratory;
s6, sealing the connection part: sealing the joint of the stainless steel wallboard, paving and pasting a second PVC coiled material at the lower end of the stainless steel wallboard installed on the side wall of the laboratory chamber, and lap-welding the second PVC coiled material and the first PVC coiled material together.
In step S4, the fixing and sealing of the air discharge device specifically includes the steps of:
s41, fully welding the contact gap between the bottom of the exhaust device and the periphery of the stainless steel wallboard;
s42, filling epoxy resin glue in the gap between the opening and the exhaust device;
and S43, cleaning the welding seam and coating silica gel on the cleaned welding seam.
In step S6, the sealing of the joint of the stainless steel wall panel specifically includes the following steps:
s61, performing argon arc welding full-length welding treatment on the joint of the stainless steel wall plates;
and S62, cleaning the welding line and coating polyurethane glue on the cleaned welding line.
The invention realizes the omnibearing and efficient sealing of the side wall, the ground, the top, the exhaust device and the like of the laboratory, thereby ensuring the structural maintenance performance of the laboratory.
Drawings
FIG. 1 is a schematic view of the overall construction of a laboratory seal according to the present invention;
FIG. 2 is a schematic view of the mounting of the venting device in the laboratory seal of the present invention;
fig. 3 is an enlarged view of the structure of fig. 2 according to the present invention.
In the figure, 1, a stainless steel wallboard; 2. a first PVC web; 3. an air exhaust device; 4. polyurethane glue; 5. epoxy resin glue; 6. silica gel; 7. a second PVC web; 8. reinforcing the keel; 9. sealing and pressing strips; 10. a boom.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 to 3, a sealing structure for a laboratory comprises a plurality of stainless steel wallboards 1 installed on the side wall and the top of the laboratory in a splicing manner, a first PVC coil 2 laid on the floor of the laboratory, a sealing door and window 9, and an air exhaust device 3 installed on the stainless steel wallboards 1 on the top of the laboratory in a penetrating manner;
the stainless steel wallboards 1 are connected in a full-welding mode, and polyurethane glue 4 is coated at the welding seams;
the first PVC coiled material 2 is fixedly connected with the ground of a laboratory by utilizing polyurethane glue 4;
epoxy resin glue 5 is filled all around between exhaust device 3 and the stainless steel wallboard 1, the full weld of contact gap department is connected around exhaust device 3 bottom and the stainless steel wallboard 1, and its welding seam department coats and is scribbled silica gel 6.
Sealing door and window 9 full weld welds on installing stainless steel wallboard 1 at the laboratory room lateral wall, and its welding seam department coats and is scribbled polyurethane glue 4.
Install at the laboratory parapet the square pipe skeleton is connected with between stainless steel wallboard 1 and the laboratory parapet, and install at the laboratory parapet it has the glass magnesium board to fill between stainless steel wallboard 1 and the laboratory parapet. In the embodiment, the square pipe framework is made of stainless steel through welding, and the compressive strength of the enclosure structure and the flatness of the wall plate are met by utilizing the square pipe framework and the glass magnesium plate.
Install at the laboratory room lateral wall both ends are all done the circular arc and are handled about stainless steel wallboard 1, and install at the laboratory room lateral wall 1 corner welding of stainless steel wallboard has the reentrant corner strip. In the embodiment, the upper end and the lower end of the stainless steel wallboard 1 arranged on the side wall of the laboratory are both subjected to arc treatment, so that the internal stress of the stainless steel wallboard 1 can be fully released, the deformation of subsequent processing is reduced, and the corners of the laboratory can be ensured to be arc-shaped by matching with the internal corner strips, so that the requirement that the inner wall of the laboratory is easy to clean is met; optionally, the radius of the internal corner strip is 50mm, so that excessive arc is guaranteed.
Install at laboratory side wall 1 lower extreme of stainless steel wallboard is spread through polyurethane glue 4 and is pasted and be fixed with second PVC coiled material 7, second PVC coiled material 7 and 2 lap-joint welding of first PVC coiled material are in the same place. In the present embodiment, the second PVC coil 7 further improves the sealing property between the stainless steel panel 1 attached to the side wall of the laboratory chamber and the floor.
Install at laboratory lateral wall stainless steel wallboard 1 installs and is used for right the sealing bead 9 that the second PVC coiled material 7 tip compressed tightly. In the embodiment, the arrangement of the sealing pressing strip 9 improves the appearance and plays a certain sealing role.
Install at the laboratory top 1 up end of stainless steel wallboard is connected with and consolidates fossil fragments 8, it all is connected with a plurality of jibs 10 to consolidate between fossil fragments 8 and exhaust device 3 and the laboratory top surface. In this embodiment, in the laboratory of large-span, its top need carry out the concatenation of polylith stainless steel wallboard 1, for the intensity that promotes laboratory top stainless steel wallboard 1, span the installation on the laboratory top and consolidate fossil fragments 8.
The construction method of the laboratory sealing structure comprises the following specific steps:
s1, installing the side wall board of the laboratory: fixedly mounting corresponding stainless steel wallboards 1 on the side wall of the laboratory chamber in sequence;
specifically, before the installation of the stainless steel wallboard 1 of the laboratory side wall, the reinforced long stainless steel ribs 8 are arranged on the laboratory side wall, the glass magnesium board is filled, the paying-off before the installation is carried out, the installation position is determined, after the first stainless steel wallboard 1 is erected, the first stainless steel wallboard is immediately leveled and fixed, the bottom of the first stainless steel wallboard is fixed with the ground through an M10 expansion pipe, the top of the first stainless steel wallboard is fixed with a civil engineering wall through an M10 expansion pipe, after the first stainless steel wallboard is installed, the subsequent stainless steel wallboard 1 is installed, measuring instruments such as a laser ruler and an angle ruler are used for calibrating the wallboards, the horizontal and vertical of each stainless steel wallboard 1 are guaranteed, meanwhile, the gap error between each stainless steel wallboard 1 is adjusted in time.
S2, installing a top plate of a laboratory: hoisting the corresponding stainless steel wallboard 1 to a corresponding height, and fixing the hoisted stainless steel wallboard 1 and the stainless steel wallboard 1 installed on the side wall of the laboratory chamber;
specifically, the back is accomplished in the installation of the stainless steel wallboard 1 of laboratory side wall, carries out the corresponding mounted position department of lifting to the stainless steel wallboard 1 of installing at the laboratory top, with it with 1 welded connection of stainless steel wallboard of laboratory side wall, to the great laboratory of span, need in advance at its top installation reinforcing keel 8, utilize reinforcing keel 8 and 1 welding of stainless steel wallboard to add intensity.
S3, installing a laboratory sealing door and window 9: transferring the sealing door and window 9 to an installation position, and fixing the sealing door and window with the stainless steel wallboard 1 by using spot welding;
s4, installing the top exhaust device 3 in the laboratory: a hole is formed in the corresponding stainless steel wallboard 1 at the top of the laboratory, the air exhaust device 3 is hoisted to the hole, and the air exhaust device 3 is fixedly sealed;
specifically, the diagonal line of the size of the opening is not more than or equal to 2mm, and the size of the opening is more than 15-20 mm of the size of the air exhaust device, so that the air exhaust device can be conveniently installed;
specifically, the fixing and sealing of the air exhaust device 3 specifically includes the following steps:
s41, fully welding the contact gap between the bottom of the exhaust device 3 and the periphery of the stainless steel wallboard to avoid glue leakage during glue pouring;
s42, filling epoxy resin glue 5 into the gap between the opening and the exhaust device 3, wherein the glue injection depth is 20-30 mm, and the sealing performance is ensured;
and S43, cleaning the welding seam, and coating silica gel on the cleaned welding seam to further improve the sealing property.
S5, seamless construction of laboratory ground: paving and sticking an integral first PVC coiled material 2 on the ground of a laboratory;
specifically, before first PVC coiled material 2 was laid, pour into polyurethane glue 4 on ground and carry out the gap filling, utilize polyurethane glue 4 to realize that first PVC coiled material 2 tiles fixedly on ground.
S6, sealing the connection part: sealing the joint of the stainless steel wallboard 1, paving and sticking a second PVC coiled material 7 at the lower end of the stainless steel wallboard 1 arranged on the side wall of the laboratory chamber, and lap-welding the second PVC coiled material 7 and the first PVC coiled material 2 together.
Specifically, the sealing of the joint of the stainless steel wallboard comprises the following steps:
firstly, carrying out argon arc welding full-weld treatment on the joint of the stainless steel wallboards 1, finally cleaning the welding line and coating polyurethane glue 4 on the cleaned welding line, thereby realizing the sealing joint between the stainless steel wallboards 1.
The welding can be carried out by hand or by mechanical hands.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A laboratory seal structure characterized by: the device comprises a plurality of stainless steel wallboards (1) which are spliced and installed on the side wall and the top of a laboratory, a first PVC coiled material (2) paved and attached on the floor of the laboratory, and an exhaust device (3) which is installed on the stainless steel wallboards (1) on the top of the laboratory in a penetrating way;
the stainless steel wallboards (1) are connected in a full-welding mode, and polyurethane glue (4) is coated at the welding seams of the stainless steel wallboards;
the first PVC coiled material (2) is fixedly connected with the ground of a laboratory by utilizing polyurethane glue (4);
all fill epoxy glue (5) all around between exhaust device (3) and stainless steel wallboard (1), contact gap department full weld is connected around exhaust device (3) bottom and stainless steel wallboard (1), and its welding seam department coats and is scribbled silica gel (6).
2. The laboratory sealing structure of claim 1, wherein: install at the laboratory parapet the stainless steel wallboard (1) and be connected with square pipe skeleton between the laboratory parapet, and install at the laboratory parapet it has the glass magnesium board to fill between stainless steel wallboard (1) and the laboratory parapet.
3. The laboratory sealing structure of claim 1, wherein: install at laboratory room lateral wall both ends are all done the circular arc and are handled about stainless steel wallboard (1), and install at laboratory room lateral wall stainless steel wallboard (1) corner welding has the reentrant corner strip.
4. The laboratory sealing structure of claim 1, wherein: install at laboratory room lateral wall stainless steel wallboard (1) lower extreme is spread through polyurethane glue (4) and is pasted and be fixed with second PVC coiled material (7), second PVC coiled material (7) and first PVC coiled material (2) overlap joint welding are in the same place.
5. The laboratory sealing structure of claim 4, wherein: and a sealing pressing strip (9) used for pressing the end part of the second PVC coiled material (7) is installed on the stainless steel wallboard (1) installed on the side wall of the laboratory chamber.
6. The laboratory sealing structure of claim 1, wherein: install at the laboratory top stainless steel wallboard (1) up end is connected with consolidates fossil fragments (8), it all is connected with a plurality of jibs (10) to consolidate fossil fragments (8) and between exhaust device (3) and the laboratory top surface.
7. The laboratory sealing structure of claim 1, wherein: still include sealing door and window, sealing door and window full weld welds on installing stainless steel wallboard (1) at the laboratory room lateral wall, and its welding seam department coats and is scribbled polyurethane glue (4).
8. The construction method of a laboratory seal according to any one of claims 1 to 6, characterized by comprising the steps of:
s1, installing the side wall board of the laboratory: fixedly mounting corresponding stainless steel wallboards (1) on the side wall of the laboratory chamber in sequence;
s2, installing a top plate of a laboratory: hoisting the corresponding stainless steel wallboard (1) to a corresponding height, and fixing the hoisted stainless steel wallboard (1) with the stainless steel wallboard (1) arranged on the side wall of the laboratory chamber;
s3, installing a sealing door and window in a laboratory: transferring the sealed door and window to an installation position, and fixing the sealed door and window with the stainless steel wallboard (1) by using spot welding;
s4, installing an exhaust device (3) at the top of the laboratory: a hole is formed in a corresponding stainless steel wallboard (1) at the top of the laboratory, an air exhaust device (3) is hoisted into the hole, and the air exhaust device (3) is fixedly sealed;
s5, seamless construction of laboratory ground: paving and sticking an integral first PVC coiled material (2) on the ground of a laboratory;
s6, sealing the connection part: sealing treatment is carried out on the joint of the stainless steel wallboard (1), a second PVC coiled material (7) is paved at the lower end of the stainless steel wallboard (1) installed on the side wall of the laboratory chamber, and the second PVC coiled material (7) and the first PVC coiled material (2) are welded together in a lap joint mode.
9. The construction method of a laboratory seal structure according to claim 8, wherein in step S4, the fixing and sealing of the air discharging device (3) specifically comprises the steps of:
s41, fully welding the contact gap between the bottom of the air exhaust device (3) and the periphery of the stainless steel wallboard (1);
s42, filling epoxy resin glue (5) in the gap between the opening and the air exhaust device (3);
and S43, cleaning the welding seam and coating silica gel (6) on the cleaned welding seam.
10. The construction method of the laboratory sealing structure according to claim 8, wherein in step S6, the sealing of the joint of the stainless steel wall panels (1) specifically comprises the following steps:
s61, performing argon arc welding full-length welding treatment on the joint of the stainless steel wallboard (1);
and S62, cleaning the welding seam and coating polyurethane glue (4) on the cleaned welding seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210168000.7A CN114411986A (en) | 2022-02-23 | 2022-02-23 | Laboratory sealing structure and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210168000.7A CN114411986A (en) | 2022-02-23 | 2022-02-23 | Laboratory sealing structure and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114411986A true CN114411986A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210168000.7A Pending CN114411986A (en) | 2022-02-23 | 2022-02-23 | Laboratory sealing structure and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114411986A (en) |
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2022
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Application publication date: 20220429 |