Crack repairing die for LNG storage tank
By designing seal cover and fixing bolt molds for LNG storage tanks and using glue injection for repair, the problem of long and high repair of cracks on the roof of LNG storage tanks in the prior art is solved, and low cost is achieved without affecting production. Repair effect.
Patent Information
- Application Number
- CN202420617008.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing LNG storage tank roof plate is prone to cracks due to uneven heating caused by weather or liquid leakage. The existing repair methods are long, have high cost, and the replacement of fine cracks is likely to cause waste, affecting production.
A crack repair mold for the LNG storage tank including a sealing cover and fixing bolts is designed. By setting a connecting plate and through holes on the sealing cover, metal adhesive is injected into the injection hose, and the contact surface of the sealing cover and the storage tank are passed through metal. Adhesive fixation simplifies the repair process.
Simple repair of fine cracks is achieved, reducing repair costs and not affecting the normal operation of production.
Smart Images
Figure CN222241062U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an LNG storage tank crack repairing mould and belongs to the technical field of storage tank repairing. Background Art
[0002] At present, the existing LNG tank top plate is unevenly heated due to weather conditions or on-site leakage, which makes the LNG tank top plate prone to cracks. The existing repair method is to replace the combustible gas inside the LNG tank with nitrogen, and then replace the LNG tank top plate. This method takes a long time to complete and has a high replacement cost. For some LNG tank top plates with small cracks, the above method is used to replace them, which is easy to cause waste and affect the normal operation of production. Utility Model Content
[0003] In order to solve the technical problems existing in the prior art, the utility model provides an LNG storage tank crack repair mold which has a simple structure, is easy to use and can repair small cracks.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is an LNG tank crack repair mold, including a sealing cover and fixing bolts for installation on the tank, a plurality of connecting plates are evenly arranged around the sealing cover, connecting plates are provided with connecting holes, the fixing bolts correspond to the positions of the connecting plates, and the fixing bolts are installed in the connecting holes, fixing nuts are installed on the fixing bolts, a through hole is provided on the top of the sealing cover, a sealing cover is connected to the outside of the through hole through a flange, a glue injection tube is provided in the center of the sealing cover, and a control valve is installed on the glue injection tube.
[0005] Preferably, the sealing cover is made of stainless steel, and includes a sealing seat and a conical cavity arranged at the bottom of the sealing seat, the bottom of the cavity wall of the conical cavity is provided with a contact surface that cooperates with the storage tank, the through hole is arranged directly above the conical cavity, and a plurality of bolt holes for flange connection are arranged on the circumference of the through hole.
[0006] Preferably, the contact surface of the bottom of the cavity wall of the conical cavity is fixed to the storage tank by a metal adhesive.
[0007] Preferably, the height of the conical cavity is 3-5 cm.
[0008] Compared with the prior art, the utility model has the following technical effects: the utility model has a simple structure and is easy to use. A sealing cover is installed on the LNG storage tank, and glue is injected into the sealing cover to repair small cracks on the top plate of the LNG storage tank. The repair is simple, does not affect normal production, and has a low repair cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a structural schematic diagram of the utility model.
[0010] Figure 2 It is a top view of the utility model. DETAILED DESCRIPTION
[0011] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0012] like Figure 1 and Figure 2 As shown, the LNG tank crack repair mold includes a sealing cover 1 and a fixing bolt 2 for installation on the storage tank. A plurality of connecting plates 3 are evenly arranged around the sealing cover 1. The connecting plates 3 are provided with connecting holes. The fixing bolts 2 correspond to the positions of the connecting plates 3, and the fixing bolts are installed in the connecting holes. A fixing nut 4 is installed on the fixing bolt 2. A through hole 5 is provided on the top of the sealing cover 1. The outside of the through hole 5 is connected to a sealing cover 6 through a flange. A glue injection tube 7 is provided in the center of the sealing cover 6. A control valve 8 is installed on the glue injection tube 7.
[0013] The utility model adopts welding fixing bolts on the top plate of the LNG storage tank, fixes the sealing cover by fixing bolts, and the sealing cover is fixed on the fixing bolts by connecting plates, so that the sealing cover can fit tightly on the LNG storage tank. Among them, the sealing cover 1 is made of stainless steel, and the sealing cover 1 includes a sealing seat 9 and a conical cavity 10 arranged at the bottom of the sealing seat. The bottom of the cavity wall of the conical cavity 10 is provided with a contact surface that matches the storage tank, and the through hole 5 is arranged just above the conical cavity, and a plurality of bolt holes for flange connection are arranged on the circumference of the through hole 5. At the same time, the contact surface at the bottom of the cavity wall of the conical cavity 10 is fixed to the storage tank by a metal adhesive to ensure reliable and stable installation.
[0014] Specifically, when in use, the sealing cover is first fixed on the LNG storage tank, and after the fixing is completed, the metal adhesive is injected into the conical cavity 10 through the glue injection tube. The height of the conical cavity 10 is 3-5 cm, and the glue injection height is sufficient. After the glue injection is completed, wait for the adhesive to solidify.
[0015] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims
1. LNG tank crack repair mold, characterized by: It includes a sealing cover and fixing bolts for installation on a storage tank, a plurality of connecting plates are evenly arranged around the sealing cover, connecting plates are provided with connecting holes, the fixing bolts correspond to the positions of the connecting plates, and the fixing bolts are installed in the connecting holes, fixing nuts are installed on the fixing bolts, a through hole is arranged on the top of the sealing cover, a sealing cover is connected to the outside of the through hole through a flange, a glue injection tube is arranged in the center of the sealing cover, and a control valve is installed on the glue injection tube.
2. The LNG tank crack repair mold according to claim 1, characterized in that: The sealing cover is made of stainless steel, and includes a sealing seat and a conical cavity arranged at the bottom of the sealing seat. The bottom of the cavity wall of the conical cavity is provided with a contact surface that cooperates with the storage tank. The through hole is arranged directly above the conical cavity, and a plurality of bolt holes for flange connection are arranged on the circumference of the through hole.
3. The LNG tank crack repair mold according to claim 2 is characterized in that: The contact surface of the bottom of the cavity wall of the conical cavity is fixed on the storage tank by a metal adhesive.
4. The LNG tank crack repair mold according to claim 2, characterized in that: The height of the conical cavity is 3-5 cm.