Steel lining polytetrafluoroethylene distillation kettle body

Abstract

The utility model discloses a steel lining tetrafluoro distillation kettle body, which comprises a steel body reaction kettle, the left end and the right end of the steel body reaction kettle are fixedly connected with connecting flanges, the inner wall of the steel body reaction kettle is provided with a group of adhesive net grooves, and the inner wall of the steel body reaction kettle is fixedly connected with an adhesive layer. And a polytetrafluoroethylene lining is arranged in the steel reaction kettle. According to the device, through the arrangement of the steel body reaction kettle, the bonding net groove and the bonding agent layer, a bonding agent can be adhered to the steel body reaction kettle in a net-shaped structure, so that the bonding of the bonding agent layer is more stable, the stability of the polytetrafluoroethylene lining is effectively improved, and through the arrangement of the corrugated groove, the annular groove and the polytetrafluoroethylene limiting hoop, the service life of the polytetrafluoroethylene lining is prolonged. According to the technical scheme, the corrugated grooves can be used for absorbing and compensating deformation generated by thermal expansion, cold contraction and displacement generated by the PTFE lining, through limiting cooperation of the annular grooves and the PTFE limiting hoops, the stability of the PTFE lining is effectively improved, the phenomenon of separation of the PTFE lining is avoided, and stable use of the steel lining PTFE distillation kettle body is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a steel-lined tetrafluoroethylene distillation kettle body. Background Art

[0002] Chemical anti-corrosion equipment is widely used in the fields of chemical production and chemical raw material storage. At present, the production of anti-corrosion equipment mainly involves covering the inside of the equipment with an anti-corrosion plastic lining to form anti-corrosion protection. Most of the above-mentioned equipment bodies are made of carbon steel and other materials. In recent years, distillation kettles with PTFE linings in the tank body have been favored by chemical manufacturers because of their good acid and alkali resistance and other excellent properties.

[0003] With the demand of chemical production, the diameter of distillation kettles is made larger and larger, but the expansion coefficient of PTFE is too different from that of carbon steel. The expansion coefficient of PTFE is about 10 times that of carbon steel, which leads to the loose fitting of the PTFE lining made in the shell with large diameter, and the PTFE lining and the shell are easily separated, resulting in leakage, which is not convenient for the stable use of the steel-lined PTFE distillation kettle body. Therefore, we propose a steel-lined PTFE distillation kettle body to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a steel-lined polytetrafluoroethylene distillation kettle body to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A steel-lined polytetrafluoroethylene distillation kettle body comprises a steel reactor, the left and right ends of the steel reactor are fixedly connected with connecting flanges, the inner wall of the steel reactor is provided with a group of adhesive mesh grooves, the inner wall of the steel reactor is fixedly connected with an adhesive layer, a polytetrafluoroethylene liner is arranged inside the steel reactor, the left and right ends of the polytetrafluoroethylene liner are provided with two groups of corrugated grooves, the inner wall of each connecting flange is provided with an annular groove, the inner wall of each annular groove is fixedly connected with a polytetrafluoroethylene limiting hoop by adhesive, and the inner wall of each polytetrafluoroethylene limiting hoop is fixedly connected to the outer surface of the polytetrafluoroethylene liner.

[0007] In a further embodiment, the side surfaces of the two connecting flanges that are away from each other are fixedly connected with sealing gaskets, and the sealing gaskets are made of rubber.

[0008] In a further embodiment, a group of connection holes are formed on the side surfaces of the two connection flanges that are away from each other.

[0009] In a further embodiment, the upper surface and the bottom surface of the steel body reactor are both fixedly connected with auxiliary mounting frames, and the side surfaces of the two auxiliary mounting frames that are away from each other are each provided with a mounting opening.

[0010] In a further embodiment, a model plate is fixedly connected to the back of the steel body reactor, and the model plate is located in the middle of the steel body reactor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The device, through the steel reactor, adhesive mesh groove and adhesive layer, can make the adhesive adhere to the steel reactor in a mesh structure, make the adhesive layer more firmly bonded, and effectively increase the stability of the polytetrafluoroethylene lining. The corrugated groove, annular groove and polytetrafluoroethylene limiting hoop can be used to absorb and compensate for the deformation caused by thermal expansion, contraction and displacement of the polytetrafluoroethylene lining by the corrugated groove. The limiting cooperation of the annular groove and the polytetrafluoroethylene limiting hoop can effectively increase the stability of the polytetrafluoroethylene lining, avoid the detachment of the polytetrafluoroethylene lining, and facilitate the stable use of the steel-lined polytetrafluoroethylene distillation reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a steel-lined polytetrafluoroethylene distillation kettle body.

[0014] Figure 2 This is a schematic diagram of the internal dissection structure of the polytetrafluoroethylene lining in a steel-lined polytetrafluoroethylene distillation kettle.

[0015] Figure 3 It is the rear view of a steel body reactor in a steel lined PTFE distillation kettle.

[0016] Figure 4 This is a schematic diagram of the internal dissection structure of a steel body reactor in a steel-lined polytetrafluoroethylene distillation kettle.

[0017] In the figure: 1. Steel body reactor; 2. Auxiliary mounting frame; 3. Connecting flange; 4. Sealing gasket; 5. Connecting hole; 6. PTFE lining; 7. Corrugated groove; 8. Adhesive layer; 9. Mounting port; 10. PTFE limit hoop; 11. Annular groove; 12. Model plate; 13. Adhesive mesh groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4In the utility model, a steel-lined polyfluoro distillation kettle body comprises a steel reactor 1, the left and right ends of the steel reactor 1 are fixedly connected with connecting flanges 3, the inner wall of the steel reactor 1 is provided with a group of adhesive mesh grooves 13, the inner wall of the steel reactor 1 is fixedly connected with an adhesive layer 8, a polyfluoro liner 6 is provided inside the steel reactor 1, the left and right ends of the polyfluoro liner 6 are provided with two groups of corrugated grooves 7, each connecting flange 3 is provided with an annular groove 11, the inner wall of each annular groove 11 is fixedly connected with a polyfluoro limiting hoop 10 by an adhesive, and the inner wall of each polyfluoro limiting hoop 10 is fixedly connected to the outer surface of the polyfluoro liner 6.

[0020] The two connecting flanges 3 are fixedly connected to a sealing gasket 4 on the side away from each other. The sealing gasket 4 is made of rubber. The two connecting flanges 3 are provided with a group of connecting holes 5 on the side away from each other, which can realize the sealed connection of the steel body reactor 1 and facilitate the stable use of the steel body reactor 1.

[0021] The upper surface of the steel body reactor 1 and the bottom surface of the steel body reactor 1 are fixedly connected with auxiliary mounting frames 2, and the two auxiliary mounting frames 2 are provided with mounting openings 9 on the side away from each other, which can assist the installation of the steel body reactor 1 and facilitate the installation of the steel body reactor 1. The back of the steel body reactor 1 is fixedly connected with a model plate 12, which is located in the middle of the steel body reactor 1 and can explain the model of the steel body reactor 1, so that the staff can understand and use the steel lined polytetrafluoroethylene distillation kettle body.

[0022] The working principle of the utility model is:

[0023] When in use, first apply a certain amount of adhesive layer 8 on the inner wall of the steel body reactor 1, and apply the adhesive to the inside of the adhesive mesh groove 13, so that the adhesive layer 8 is fixed to the inside of the steel body reactor 1 in a mesh structure, and then the polyfluoro liner 6 is welded and fixed to the inside of the steel body reactor 1 through a hot melt process, and the polyfluoro limit hoop 10 is fixed inside the annular groove 11 to complete the welding assembly of the polyfluoro liner 6, and then the steel body reactor 1 is installed to the designated position through the connecting flange 3, the connecting hole 5 and the sealing gasket 4. During use, the corrugated groove 7 is used to absorb and compensate for the deformation caused by thermal expansion, contraction and displacement of the polyfluoro liner 6 to prevent the polyfluoro liner 6 from falling off, thereby achieving stable use of the steel lined polyfluoro distillation kettle body.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A steel lined polytetrafluoroethylene distillation kettle, characterized in that: The invention comprises a steel reactor (1), wherein the left and right ends of the steel reactor (1) are fixedly connected with connecting flanges (3), the inner wall of the steel reactor (1) is provided with a group of adhesive mesh grooves (13), the inner wall of the steel reactor (1) is fixedly connected with an adhesive layer (8), a polytetrafluoroethylene lining (6) is provided inside the steel reactor (1), the left and right ends of the polytetrafluoroethylene lining (6) are provided with two groups of corrugated grooves (7), the inner wall of each connecting flange (3) is provided with an annular groove (11), the inner wall of each annular groove (11) is fixedly connected with a polytetrafluoroethylene limiting hoop (10) via an adhesive, and the inner wall of each polytetrafluoroethylene limiting hoop (10) is fixedly connected to the outer surface of the polytetrafluoroethylene lining (6).

2. A steel-lined polytetrafluoroethylene distillation kettle according to claim 1, characterized in that: The side surfaces of the two connecting flanges (3) that are away from each other are both fixedly connected with sealing gaskets (4), and the sealing gaskets (4) are made of rubber.

3. A steel-lined polytetrafluoroethylene distillation kettle according to claim 1, characterized in that: A group of connection holes (5) are provided on the side surfaces of the two connection flanges (3) that are away from each other.

4. A steel-lined polytetrafluoroethylene distillation kettle according to claim 1, characterized in that: The upper surface of the steel body reactor (1) and the bottom surface of the steel body reactor (1) are both fixedly connected with auxiliary mounting frames (2), and mounting openings (9) are provided on the side surfaces of the two auxiliary mounting frames (2) that are away from each other.

5. A steel-lined polytetrafluoroethylene distillation kettle according to claim 1, characterized in that: A model plate (12) is fixedly connected to the back of the steel body reactor (1), and the model plate (12) is located in the middle of the steel body reactor (1).

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