Improved reaction kettle inner wall perforation repairing device

Abstract

The utility model discloses an improved reaction kettle inner wall perforation repairing device, and belongs to the technical field of chemical equipment accessories and repairing. The improved reaction kettle inner wall perforation repairing device comprises a pot patch, an inner-layer polytetrafluoroethylene sealing gasket, an expansion plug, an outer-layer polytetrafluoroethylene sealing gasket, a bolt and a sleeve, and solves the problem that a glass lining reaction kettle must be returned to a factory to be repaired after the inner wall of the glass lining reaction kettle is perforated in the prior art, and the problem that a common pot patch is short in durable time is solved; the improved reaction kettle inner wall perforation repairing device further has the advantages of being convenient to manufacture, low in cost, convenient to construct and durable, plays an important role in perforation repairing of glass lining reaction kettles or enamel reaction kettles or storage tanks, and has good application and popularization value.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment accessories and repair technology, and specifically relates to an improved device for repairing perforations in the inner wall of a reactor. Background Technology

[0002] Glass-lined reactors are widely used in fine chemical production processes. Due to transportation vibration, impact during use, and their own weight, coupled with the strong corrosiveness of the reactants and the frequent switching between high and low temperatures during the reaction process, the inner wall of the reactor may experience enamel peeling or perforation. The perforation in the inner wall of the reactor can spread and expand in a short period of time, and may even cause safety accidents in the production process.

[0003] Previously, the common repair methods were to return the reactor to the manufacturer for re-enamel repair, apply acid-resistant adhesive, or use a single-leg patch for forced repair. Returning the reactor for re-enamel repair required significant downtime and cost. Acid-resistant adhesive could not be used continuously in reactions involving acidic materials. While a single-leg patch repair could last for 1-2 months, the uneven stress caused by the forced pull could loosen the area around the perforation, leading to the perforation becoming larger. Therefore, there is a need to research a method or device for repairing perforations in the inner wall of a reactor that can provide a firm repair, allow for continued use in acidic environments, and minimize costs. Summary of the Invention

[0004] To address the aforementioned problems, an improved design was implemented, taking into account the causes of the inner wall perforation and the shortcomings of the single-leg patch. The previous single-diameter patch bolt was innovatively replaced with four evenly distributed small-diameter bolts. A rubber expansion plug was inserted into the inner wall perforation. The patch bolts, through their tightening action, tightly press the pot patch, bolts, inner wall perforation, and rubber expansion plug together to form a single unit. This allows the repaired reactor to continue to be used for reactions between acidic materials without further damage over a long period. Furthermore, this invention also introduces a sleeve. The tail of the sleeve serves as a flange for the patch bolt, while the head of the sleeve is firmly attached to the outer wall of the reactor. This design makes the repair operation more convenient.

[0005] The present invention relates to an improved reactor inner wall perforation repair device, comprising: a pot patch, patch bolts, an inner PTFE sealing gasket, an expansion plug, an outer PTFE sealing gasket, a sleeve, a sleeve flange, and an outer wall bolt. The pot patch is characterized by having four bolts embedded in it; an inner PTFE sealing gasket is provided between the pot patch and the inner wall; an expansion plug is inserted into the perforation in the inner wall; the outer layer of the inner wall is connected to the tail of the sleeve via the patch bolts; an outer PTFE sealing gasket is provided between the tail of the sleeve and the outer layer of the inner wall; and the head of the sleeve is secured to the outer wall via the outer wall bolts.

[0006] Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the reactor patch is made of polytetrafluoroethylene (PTFE) and 904 stainless steel plate, the PTFE is molded and covered with the 904 stainless steel plate, and four bolts are evenly distributed on the 904 stainless steel plate according to the diameter of the inner wall perforation.

[0007] Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the pot patch is circular curved, the curvature of the curved surface is consistent with the inner wall of the reactor, and the diameter of the pot patch is 3-5 times the diameter of the inner wall perforation.

[0008] Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the four bolts on the reactor patch are evenly distributed close to the edge of the inner wall perforation.

[0009] Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the expansion plug is an ellipsoidal soft rubber, which is inserted between four bolts during the repair process, and the perforation is filled by the bolts through firm compression.

[0010] Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the sleeve is made of 316 stainless steel, and four screw holes are provided at the tail end of the sleeve, which is firmly attached to the reactor patch by patch bolts and an outer PTFE sealing gasket. Preferably, the improved reactor inner wall perforation repair device described in this utility model is characterized in that the head of the sleeve is provided with a flange, and four screw holes are provided on the flange, which is firmly attached to the outer wall of the reactor by outer wall bolts.

[0011] The improved reactor inner wall perforation repair device described in this utility model has five significant beneficial effects: (1) The introduction of four bolts evenly distributed along the edge of the inner wall perforation can balance the force and prevent secondary damage to the inner wall perforation; (2) The design of inserting an expansion plug after the inner wall perforation is completed makes the sturdy reactor patch and the inner wall perforation merge into a whole, which makes the repair point durable; (3) The reactor patch made of 904 stainless steel plate and polytetrafluoroethylene (PTFE) molded composite can resist acid corrosion and can continue to be used for acidic material reactions; (4) The introduction of the sleeve makes the repair operation and maintenance of the reactor patch more convenient; (5) The repair time is short, the cost is low, it does not affect production, it is safe and reliable, and has good promotion and application value. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the structure of an improved reactor inner wall perforation repair device as described in the embodiment of the present utility model.

[0014] Figure 1 In the middle: Pot patch 01, patch bolt, inner PTFE sealing gasket 02, inner wall 03, inner wall perforation 04, expansion plug 05, outer PTFE sealing gasket 06, sleeve 07, sleeve flange 08, outer wall 09, patch bolt 10, outer wall bolt 11. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided in conjunction with... Figure 1 The specific embodiments of this implementation will be further described.

[0016] The improved reactor inner wall perforation repair device described in this specific embodiment includes: a pot patch 01, a patch bolt, an inner PTFE sealing gasket 02, an inner wall 03, an inner wall perforation 04, an expansion plug 05, an outer PTFE sealing gasket 06, a sleeve 07, a sleeve flange 08, an outer wall 09, a patch bolt 10, and an outer wall bolt 11.

[0017] The improved reactor inner wall perforation repair device described in this specific embodiment is characterized in that: four patch bolts 10 are embedded on the pot patch 01; an inner PTFE sealing gasket 02 is provided between the pot patch 01 and the inner wall 03; an expansion plug 05 is inserted into the inner wall perforation 04; the outer layer of the inner wall 03 is connected to the tail of the sleeve 07 by the patch bolts 10; an outer PTFE sealing gasket 06 is provided between the tail of the sleeve 07 and the outer layer of the inner wall 03; and the head of the sleeve 07 is firmly fixed to the outer wall 09 by the outer wall bolts 11.

[0018] Furthermore, the improved reactor inner wall perforation repair device described in this specific embodiment is characterized in that the reactor patch is made of polytetrafluoroethylene (PTFE) and 904 stainless steel plate, with PTFE molded over the 904 stainless steel plate, and four bolts evenly distributed on the 904 stainless steel plate according to the diameter of the inner wall perforation.

[0019] Furthermore, the improved reactor inner wall perforation repair device described in this specific embodiment is characterized in that the pot patch is circular curved, the curvature of the curved surface is consistent with the inner wall of the reactor, and the diameter of the pot patch is 3-5 times the diameter of the inner wall perforation.

[0020] Furthermore, the improved reactor inner wall perforation repair device described in this specific embodiment is characterized in that the four bolts on the reactor patch are evenly distributed close to the edge of the inner wall perforation.

[0021] Furthermore, the improved reactor inner wall perforation repair device described in this specific embodiment is characterized in that the expansion plug is an ellipsoidal soft rubber, which is inserted between four bolts during the repair process, and the perforation in the inner wall is filled by the bolts through firm compression.

[0022] Furthermore, in this specific embodiment, the improved reactor inner wall perforation repair device is characterized in that the sleeve is made of 316 stainless steel, and four screw holes are provided at the tail end of the sleeve, which is firmly attached to the reactor patch by patch bolts and an outer PTFE sealing gasket. Furthermore, in this specific embodiment, the improved reactor inner wall perforation repair device is characterized in that the head of the sleeve is provided with a flange, and four screw holes are provided on the flange, which is firmly attached to the outer wall of the reactor by outer wall bolts.

[0023] Furthermore, the improved reactor inner wall perforation repair device described in this specific embodiment has the following simple repair operation process: First, make a large hole on the outer wall 09 at the location of the inner wall perforation 04 to facilitate the entry and exit of hands and tools. Use tools to grind and clean the inner wall perforation 04 and appropriately enlarge the hole to remove the damaged part around the inner wall perforation 04. Next, make a pot patch 01 according to the diameter of the inner wall perforation 04 and insert patch bolts 10. Add an inner PTFE sealing gasket 02. Pass the four evenly distributed bolts on the pot patch 01 through the inner wall perforation 04. Then, insert an expansion plug 05 between the four patch bolts 10 and add an outer PTFE sealing gasket 06. Tighten the patch bolts 10 to the screw holes at the tail of the sleeve 07. Finally, tighten the outer wall bolts 11 along the screw holes on the flange of the sleeve 07 onto the outer wall 09. This device, an improved reactor inner wall perforation repair device described in this utility model technical solution, has five significant beneficial effects: (1) The introduction of four bolts evenly distributed along the edge of the inner wall perforation can balance the force and prevent secondary damage to the inner wall perforation; (2) The design of inserting an expansion plug after the inner wall perforation is completed makes the sturdy pot patch and the inner wall perforation merge into a whole, which makes the repair point durable; (3) The pot patch made of 904 stainless steel plate and polytetrafluoroethylene (PTFE) molded composite can resist acid corrosion and can continue to be used for acidic material reactions; (4) The introduction of the sleeve makes the repair operation and pot patch maintenance more convenient; (5) The repair time is short, the cost is low, it does not affect production, it is safe and reliable, and has good promotion and application value.

[0024] Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model shall be included within the protection scope of this utility model. The protection scope of this utility model shall conform to the widest range consistent with the principles and novel features described herein.

Claims

1. An improved device for repairing perforations in the inner wall of a reaction vessel, comprising: The pot patch, patch bolt, inner layer Teflon sealing pad, expansion plug, outer layer Teflon sealing pad, sleeve, sleeve flange, outer wall bolt, characterized in that the pot patch is embedded with four bolts, the inner layer Teflon sealing pad is arranged between the pot patch and the inner wall, the expansion plug is inserted into the inner wall perforation, the outer layer of the inner wall is connected with the sleeve tail through the patch bolt, the outer layer Teflon sealing pad is arranged between the sleeve tail and the outer layer of the inner wall, and the sleeve head is firmly fixed on the outer wall through the outer wall bolt.

2. The improved device for repairing perforation in the inner wall of a reaction vessel according to claim 1, wherein The pot patch is composed of polytetrafluoroethylene PTFE and 904 stainless steel plate, the polytetrafluoroethylene PTFE is molded and covered on the 904 stainless steel plate, and four bolts are uniformly distributed on the 904 stainless steel plate according to the diameter of the inner wall perforation.

3. The improved device for repairing perforation in the inner wall of a reaction vessel according to claim 1, wherein The pot patch is in a circular curved surface shape, the curvature of the curved surface is consistent with the inner wall of the reaction kettle, and the diameter of the pot patch is 3-5 times the diameter of the inner wall perforation.

4. The improved device for repairing perforation in the inner wall of a reaction vessel according to claim 1, wherein The four bolts on the pot patch are uniformly distributed close to the edge of the inner wall perforation.

5. The improved device for repairing perforations in the inner wall of a reaction vessel according to claim 1, wherein The expansion plug is an ellipsoidal soft rubber, which is inserted between the four bolts during hole repair and is firmly extruded to fill the inner wall perforation through the bolts.

6. The improved device for repairing perforation in the inner wall of a reaction vessel according to claim 1, wherein The sleeve is made of 316 stainless steel, the sleeve tail is provided with four screw holes, and the pot patch is firmly connected with the pot patch through the patch bolt and the outer layer Teflon sealing pad.

7. The improved device for repairing perforations in the inner wall of a reaction vessel according to claim 1, wherein The head of the sleeve is provided with a flange, four screw holes are opened on the flange, and the reaction kettle outer wall is firmly connected together through the outer wall bolt. The head of the sleeve is provided with a flange, four screw holes are opened on the flange, and the reaction kettle outer wall is firmly connected together through the outer wall bolt.

Images