Hot chamber shell hauling platform

Abstract

The utility model discloses a hot chamber shell hauling platform which penetrates through a plant opening of a plant and comprises an external base station arranged on the outer side of the plant opening and an internal rack arranged on the inner side of the plant opening, and two hauling rails arranged in parallel are fixedly laid at the top ends of the external base station and the internal rack. Hauling tankette groups are respectively and correspondingly arranged in the two hauling tracks, and hauling power devices are respectively and fixedly arranged at the end parts of the two hauling tracks on the built-in rack; during use, the hot chamber shell is hoisted to the hauling tankette group outside a workshop opening, the hauling power device is hooked on the hot chamber shell, the hauling power device is started, and the hot chamber shell can be slowly and stably moved into the workshop by means of moving cooperation of the hauling tankette group. And hoisting equipment in the plant is used for hoisting and mounting in place, so that the in-place of the hot chamber shell is not limited by the construction period of the plant any more, the consignment in-place efficiency is high, and the construction period of the hot chamber is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of hot chamber construction, in particular to a towing platform for placing a hot chamber shell in place. Background Art

[0002] Hot cells are shielded facilities for high-radioactivity experiments and operations at nuclear power plants, boasting the most comprehensive scientific research capabilities. They are enclosed spaces dedicated to handling radioactive and toxic substances that are hazardous to humans and the environment. Components in conventional nuclear facilities that are radioactive or contaminated with radioactive substances, especially those with high radioactivity, must undergo maintenance and treatment within the hot cell. They must then undergo shielding measures such as cleaning, decontamination, and packaging until they meet cleanliness standards before they are allowed to be transported out of the hot cell. They must then be transported to a landfill for deep burial using conventional transportation. In these areas, shielded chambers are collectively referred to as hot cells. Hot cells include structures such as the hot cell shell and peepholes. The hot cell shell is typically quite large, and during construction, it is typically placed into position using a vehicle-mounted hoist from above the unroofed building, then hoisted into position using a crane within the building. Sometimes, due to adjustments in the project progress, the roof of the plant is sealed before the hot chamber shell is in place, making it impossible to install it in place using the above method. Instead, it can only be introduced horizontally from the plant entrance, which has the disadvantages of being difficult to operate and time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a hot chamber shell towing platform which can move the hot chamber into position horizontally, has high transport efficiency, helps to shorten the construction period and avoids the limitation of the factory construction period.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a hot chamber shell towing platform is set up through the factory entrance of the factory building, including an external base arranged on the outside of the factory entrance and an internal platform arranged on the inside of the factory entrance. Two parallel towing rails are fixedly laid on the top of the external base and the internal platform, and a small towing tank group is respectively provided in the two towing rails. The ends of the two towing rails located on the internal platform are also fixedly installed with towing power devices.

[0005] As a preferred technical solution, the towing power device includes a consignment fixing ear fixedly installed on the top end of the towing track, and an electric fall chain is hooked on the consignment fixing ear.

[0006] As a preferred technical solution, the built-in platform includes an I-shaped support channel steel fixedly arranged corresponding to the bottom end of the hauling track, and support columns are fixedly and evenly arranged and connected between the bottom end of each support channel steel and the ground.

[0007] As a preferred technical solution, at least two supporting channel steels are fixedly provided at the bottom end of each of the hauling rails, and the bottom end of each of the supporting channel steels is provided with the supporting column.

[0008] As a preferred technical solution, the bottom end of the supporting column is fixedly connected to a column base plate for increasing the fixing area.

[0009] As a preferred technical solution, the column bottom plate is set to a steel plate with a thickness of not less than 20 mm, and the distance between two adjacent support columns under the same support channel steel is not greater than 1 m.

[0010] As a preferred technical solution, channel steel cross beams are evenly connected between the two innermost supporting channel steels.

[0011] As an improvement to the above technical solution, the towing small tank group includes at least three towing small tank units, and a linkage steel plate is connected between two adjacent towing small tank units.

[0012] Due to the adoption of the above technical solution, the hot chamber shell towing platform is set up through the factory building entrance, including an external base arranged on the outside of the factory building entrance and an internal rack arranged on the inside of the factory building entrance. Two parallel towing rails are fixedly laid on the top of the external base and the internal rack, and a towing small tank group is respectively provided in the two towing rails. The ends of the two towing rails located on the internal rack are also fixedly installed with towing power devices. The utility model has the following beneficial effects: the external base is laid outside the factory building entrance and leveled, and the internal rack is fixedly laid on the top of the external base and the internal rack. The mounting stand can be detachably installed inside the factory entrance, and is equipped with a towing track, a towing power device and a towing tank group; when in use, the hot cell shell is hoisted onto the towing tank group outside the factory entrance, and the towing power device is hooked on the hot cell shell, and the towing power device is started. With the help of the movement coordination of the towing tank group, the hot cell shell can be slowly and steadily moved into the factory, and then hoisted and installed into place with the help of the hoisting equipment in the factory, so that the placement of the hot cell shell is no longer limited by the factory construction period, and the transportation and placement efficiency is high, which helps to shorten the hot cell construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of a top view of a portion of an embodiment of the present utility model;

[0016] Figure 3 It is a side view of an embodiment of the utility model;

[0017] In the figure: 1-external base; 2-internal stand; 21-support channel steel; 22-support column; 23-channel steel beam; 24-column bottom plate; 3-hot chamber shell; 4-towing track; 5-consignment fixing ear; 6-electric fall chain; 7-towing small tank unit; 8-linkage steel plate. DETAILED DESCRIPTION

[0018] The present invention is further described below with reference to the accompanying drawings and examples. In the detailed description that follows, certain exemplary embodiments of the present invention are described by way of illustration only. It goes without saying that those skilled in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of the claims.

[0019] like Figure 1 、 Figure 2 and Figure 3 As shown, the hot cell shell towing platform is set up through the factory building entrance. It is used to move the hot cell shell 3 horizontally into the factory building through the factory building entrance after the factory building is topped off, and then hoist it into place. This eliminates the limitation of the hot cell shell installation by the factory building installation schedule, allowing the two tasks to be carried out in parallel without overlap. The hot cell shell 3 towing platform includes an external base 1 set outside the factory building entrance. Depending on the specific design of the project, the external base 1 can be fixedly installed so that it can still be used as an installation or construction platform for other equipment after completing the task of towing the hot cell shell 3. It can also be set as a detachable structure for easy removal after use to free up space near the factory building for other operations. It also includes an internal platform 2 set inside the factory building entrance. The top of the internal platform 2 is on the same horizontal plane as the top of the external base 1 to facilitate the smooth towing of the hot cell shell 3 into place.

[0020] Two parallel towing rails 4 are fixedly laid on the top of the external base 1 and the internal platform 2, and a towing tank group is correspondingly arranged in the two towing rails 4. The ends of the two towing rails 4 on the internal platform 2 are also fixedly installed with towing power devices. The two towing rails 4 are fixedly laid on the top of the external base 1 and the internal platform 2, and the towing tank group is correspondingly placed in the towing rails 4 on the external base 1. The hot chamber shell 3 is hoisted onto the towing tank group outside the factory entrance, and the towing power device is hooked on the hot chamber shell 3. The towing power device is started and, with the help of the movement of the towing tank group, the hot chamber shell 3 can be slowly and steadily moved into the factory, and then hoisted and installed in place with the help of the hoisting equipment in the factory.

[0021] The towing power device includes a towing fixed ear 5 fixedly installed at the top of the towing track 4. The towing fixed ear 5 is hooked with an electric fall chain 6, which pulls the heat chamber shell 3 through the electric fall chain 6 to achieve its translational drive. The towing small tank group includes at least three towing small tank units 7. A linkage steel plate 8 is connected between two adjacent towing small tank units 7. The linkage steel plate 8 can enable the interconnected towing small tank units 7 to move synchronously, which helps to improve the stability of the translation of the heat chamber shell 3.

[0022] The built-in stand 2 of this embodiment includes I-shaped support channels 21 fixedly mounted at the bottom ends of the hauling rails 4. Support columns 22 are evenly and securely connected between the bottom ends of the support channels 21 and the ground. The support columns 22 cooperate with the support channels 21 to securely mount the corresponding hauling rails 4 and support the hot chamber shell 3 during hauling.

[0023] To enhance the support strength of each hauling track 4, at least two support channels 21 are fixed to the bottom of each hauling track 4. Each support channel 21 is equipped with a support column 22 at its bottom. That is, a plurality of support columns 22 are linearly arranged at the bottom of each support channel 21. Due to the large volume and weight of the hot chamber shell 3, the distance between two adjacent support columns 22 under the same support channel 21 cannot exceed 1 meter. Furthermore, channel beams 23 are evenly spaced and connected between the two innermost support channels 21 to further enhance support strength.

[0024] In this embodiment, a column base plate 24 for increasing the fixing area is fixedly connected to the bottom end of the supporting column 22, and the column base plate 24 is set to a steel plate with a thickness of not less than 20 mm to improve the firmness of its installation. The detachable installation of the built-in stand 2 is achieved through the column base plate 24.

[0025] The description of the present invention is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. The hot chamber shell towing platform is set through the factory entrance of the factory building, which is characterized by: It includes an external base arranged on the outside of the factory entrance and an internal platform arranged on the inside of the factory entrance. Two parallel towing rails are fixedly laid on the top of the external base and the internal platform. A small towing tank group is respectively provided in the two towing rails. The ends of the two towing rails located on the internal platform are also fixedly installed with towing power devices.

2. The hot chamber shell transport platform according to claim 1, wherein: The towing power device includes a consignment fixing ear fixedly installed on the top end of the towing track, and an electric fall chain is hooked on the consignment fixing ear.

3. The hot chamber shell transport platform according to claim 1, wherein: The built-in platform includes an I-shaped support channel steel fixedly arranged corresponding to the bottom end of the hauling track, and support columns are fixedly and evenly arranged and connected between the bottom end of each support channel steel and the ground.

4. The hot chamber shell transport platform according to claim 3, wherein: At least two supporting channel steels are fixedly provided at the bottom end of each of the hauling rails, and the bottom end of each of the supporting channel steels is provided with the supporting column.

5. The hot chamber shell transport platform according to claim 3 or 4, characterized in that: The bottom end of the supporting column is fixedly connected with a column bottom plate for increasing the fixing area.

6. The hot chamber shell transporting platform according to claim 5, characterized in that: The column bottom plate is set to a steel plate with a thickness of not less than 20 mm, and the distance between two adjacent support columns under the same support channel steel is not greater than 1 m.

7. The hot chamber shell transporting platform according to claim 5, wherein: Channel steel cross beams are evenly connected between the two innermost supporting channel steels.

8. The hot chamber shell transporting platform according to claim 1, wherein: The towing small tank group includes at least three towing small tank units, and a linkage steel plate is connected between two adjacent towing small tank units.

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