Radiation-proof lead plate shielding composite drainage pipe and construction method

Abstract

The invention discloses an anti-radiation lead plate shielding composite drainage pipe and a construction method, the anti-radiation lead plate shielding composite drainage pipe comprises a lead-containing machine-made cast iron pipeline as a central pipeline, the lead-containing machine-made cast iron pipeline is coated with a lead plate, the lead-containing machine-made cast iron pipeline is fixedly connected with the lead plate, and the outer side of the lead plate is coated with an aluminum foil tape; the outer side of the aluminum foil tape is coated with an aluminum sheet protection layer. The lead-containing machine-made cast iron pipeline is used for shielding and protecting medical wastewater for the first layer. The lead plates wrap the pipeline to serve as a second layer of shielding protection for the medical wastewater, and finally the pipeline is wrapped by the 1.0 mm aluminum sheet protection layer to serve as a third layer of protection, so that the risk that the externally-wrapped lead plates fall off for a long time due to the fact that the lead plates are directly and horizontally spliced, the lead plates are not tightly spliced, the blank space condition exists, and the gluing condition of the lead plates and the pipeline is poor is avoided. And the situation that the quality cannot be effectively controlled when prefabrication is carried out on site occurs.

Description

Technical Field

[0001] The invention relates to the technical field of architectural design, and in particular to a radiation-proof lead plate shielding composite drainage pipe and a construction method. Background Art

[0002] At present, the materials for pipes used to discharge radioactive wastewater from nuclear medicine are generally PVC-U, HDPE, lead-containing cast iron pipes, galvanized steel pipes and other materials, which are required to have properties such as acid and alkali resistance, corrosion resistance, leakage resistance and good durability. Pipeline radiation protection is shielded by wrapping concrete (vibrated and compacted) or external lead plates. If the radioactive wastewater pipe is laid side by side with an ordinary sewage pipe, the two pipes must be shielded. In traditional practices, lead plates are directly spliced ​​horizontally, which results in loose splicing of lead plates, blank spaces, and poor bonding between lead plates and pipes, resulting in the risk of external lead plates falling off over a long period of time. Traditional practices prefabricate on site, and the quality cannot be effectively controlled. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the prior art and provide a radiation-proof lead plate shielded composite drainage pipe, comprising: a lead-containing cast iron pipe as a central pipe, the lead-containing cast iron pipe is coated with a lead plate on the outside, the lead-containing cast iron pipe and the lead plate are fixedly connected, and the outside of the lead plate is coated with an aluminum foil tape, and the outside of the aluminum foil tape is coated with an aluminum skin protective layer.

[0004] Preferably, the seams of the lead plates are cut into 45° for easy fitting.

[0005] Preferably, the width of the aluminum foil tape is 8 cm, and it is wrapped every 30 cm.

[0006] Preferably, the lead plate and the lead-containing machine-made cast iron pipe are glued with a special adhesive, and the lead plate joints are bonded with strip pressure strips.

[0007] Preferably, the thickness of the aluminum skin protective layer is 1 mm.

[0008] A construction method comprises the following steps: S1. Prepare the required materials in advance and place them in the processing plant for prefabrication; S2. First, cut the leaded cast iron pipe to the required length according to the drawing length and the actual measurement on site. The lead plate is cut at 45° using special tools and prefabricated every 2m; S3. The lead plates cut at 45° by special tools are bonded to the machine-made cast iron pipes using special adhesive. When splicing, the two lead plates are always in a state of mutual compression; S4. Wrap it with 8cm aluminum foil tape every 30cm, and then cover it with an aluminum protective layer.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention uses lead-containing machine-made cast iron pipes as the first layer of shielding protection for medical wastewater. The lead plate-coated pipes are used as the second layer of shielding protection for medical wastewater, and finally coated with a 1.0mm aluminum protective layer as the third layer of protection, which avoids direct horizontal splicing of lead plates, the existence of loose splicing of lead plates, blank spaces, poor gluing of lead plates and pipes, and the risk of external lead plates falling off for a long time. Prefabrication on site, the quality cannot be effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 is a cross-sectional view of the present invention; Figure 2 This is a diagram showing the effect of angled cutting of the lead plate of the present invention.

[0011] In the figure, 1. Lead-containing cast iron pipe; 2. Lead plate; 3. Adhesive; 4. 45° cut angle; 5. Aluminum foil tape; 6. Aluminum skin protective layer. DETAILED DESCRIPTION

[0012] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0013] Reference Figure 1 and Figure 2 The present invention discloses a radiation-proof lead plate shielded composite drainage pipe, comprising: a lead-containing machine-made cast iron pipe as a central pipe, the lead-containing machine-made cast iron pipe is coated with a lead plate on the outside, the lead-containing machine-made cast iron pipe and the lead plate are fixedly connected, and the outside of the lead plate is coated with an aluminum foil tape, and the outside of the aluminum foil tape is coated with an aluminum skin protective layer.

[0014] Preferably, the joints of the lead plates are cut into 45° for easy fitting, and special gluing technology is used for the lead plates and pipes to prevent the lead plates from falling off. Strip pressure strips are used for bonding the joints, and the lead plates are pre-treated by bevel cutting when splicing them. The instability of the parallelogram is used to make the two lead plates always in a state of mutual extrusion to increase the firmness of the splicing.

[0015] Preferably, the width of the aluminum foil tape is 8 cm, and it is wrapped every 30 cm to solve the problem of blank space and easy falling off during lead plate shielding construction.

[0016] The thickness of the aluminum skin protective layer is 1 mm, which serves as a pipeline protective layer.

[0017] Preferably, the lead plate is glued to the lead-containing cast iron pipe using a special adhesive to prevent the lead plate from falling off.

[0018] The construction method of the present invention is as follows: S1: Prepare the required materials in advance and place them in the processing plant for prefabrication.

[0019] S2: First, cut the leaded cast iron pipe to the required length according to the drawing length and the actual measurement on site. The lead sheet is cut at 45° using special tools and prefabricated every 2m.

[0020] S3: The lead plate cut at 45° by special tools is bonded to the machine-made cast iron pipe using special adhesive. When splicing, the two lead plates are always in a state of mutual compression to increase the firmness of the splicing.

[0021] S4: Wrap it with 8cm aluminum foil tape every 30cm, and then cover it with an aluminum protective layer.

[0022] The present invention uses lead-containing machine-made cast iron pipes as the first layer of shielding protection for medical wastewater. The lead plate-coated pipes are used as the second layer of shielding protection for medical wastewater, and finally coated with a 1.0mm aluminum protective layer as the third layer of protection, which avoids direct horizontal splicing of lead plates, resulting in loose splicing of lead plates, blank spaces, poor bonding between lead plates and pipes, and the risk of external lead plates falling off over a long period of time. Prefabrication on site, the quality cannot be effectively controlled.

[0023] As above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes may be made to it in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A radiation-proof lead plate shielded composite drainage pipe, characterized in that: The invention comprises a lead-containing machine-made cast iron pipe as a central pipe, the lead-containing machine-made cast iron pipe is coated with a lead plate, the lead-containing machine-made cast iron pipe is fixedly connected to the lead plate, and the outer side of the lead plate is coated with an aluminum foil tape, and the outer side of the aluminum foil tape is coated with an aluminum skin protective layer.

2. The radiation-proof lead plate shielding composite drainage pipe according to claim 1, characterized in that: The joints of the lead plates are cut into 45° for easy fitting.

3. The radiation-proof lead plate shielding composite drainage pipe according to claim 1, characterized in that: The width of the aluminum foil tape is 8 cm, and it is wrapped every 30 cm.

4. The radiation-proof lead plate shielding composite drainage pipe according to claim 1, characterized in that: The lead plate and the lead-containing cast iron pipe are glued together using a special adhesive, and the lead plate joints are glued together using strip pressure strips.

5. The radiation-proof lead plate shielding composite drainage pipe according to claim 1, characterized in that: The thickness of the aluminum skin protective layer is 1 mm.

6. A construction method, comprising the radiation-proof lead plate shielded composite drainage pipe according to claim 1, characterized in that: The steps include: S1. Prepare the required materials in advance and place them in the processing plant for prefabrication; S2. First, cut the leaded cast iron pipe to the required length according to the drawing length and the actual measurement on site. The lead plate is cut at 45° using special tools and prefabricated every 2m; S3. The lead plates cut at 45° by special tools are bonded to the machine-made cast iron pipes using special adhesives; when splicing, the two lead plates are always in a state of mutual extrusion; S4. Wrap it with 8cm aluminum foil tape every 30cm, and then cover it with an aluminum protective layer.

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