CN216479474U

CN216479474U - High-temperature-resistant jacket flange

Info

Publication number: CN216479474U
Application number: CN202122772645.5U
Authority: CN
Inventors: 张少勇; 张少坤; 曹建武
Original assignee: Aerosun Corp
Current assignee: Aerosun Corp
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-05-10
Anticipated expiration: 2031-11-12

Abstract

The utility model relates to a high-temperature-resistant jacket flange, and belongs to the technical field of chemical pressure vessels. The flange comprises a jacketed pipe formed by sealing and connecting an inner cylinder section and an outer cylinder section made of heat-resistant materials, annular bottom plates at two ends of the inner cylinder section and the outer cylinder section and a cover plate, and a heat insulating material is filled in an interlayer space of the jacketed pipe; the outer edge of the cover plate extends and is fixedly connected with an inner hole at the outer end of the flange pipe in a sealing way, and the inner end of the flange pipe is fixedly connected with the shell of the container in a sealing way; the inner shell of the container is hermetically and fixedly connected with the inner end of a tube which is sleeved outside the jacket tube, and the outer end of the tube is hermetically and fixedly connected with the inner surface of the cover plate. When high-temperature medium in the container flows through the inner shell ring, the heat insulation material can isolate most heat, and the cooling medium in the interlayer can continuously cool the bobbin, so that the heat transferred to the flange pipe is obviously reduced, the temperature of the pressure-bearing flange pipe is maintained in a normal range, the cost is saved and the manufacturing difficulty is reduced on the premise of ensuring the service performance of the flange pipe.

Description

High-temperature-resistant jacket flange

Technical Field

The utility model relates to a high-temperature-resistant jacket flange, in particular to a high-temperature-resistant jacket flange with a heat insulating material, and belongs to the technical field of chemical pressure vessels.

Background

Under the high-temperature working condition of the chemical industry, the connection between the pipeline and the equipment is usually made of a flange made of high-temperature resistant materials. However, the use of the high temperature resistant flange increases the equipment cost, and has higher requirements on the manufacturing process, and the high temperature resistant flange is prone to failure and other problems in the long-term use process.

In addition, a layer of heat insulation material is lined on the inner wall of the flange, but the heat insulation material is directly contacted with a medium in the using process and is easy to damage, and the heat insulation effect is lost.

Disclosure of Invention

The utility model aims to: aiming at the problems in the prior art, the high-temperature resistant jacket flange with the heat insulating material is economical in cost and capable of reliably insulating heat for a long time, so that the requirements of reliable heat insulation and long-term use in high-temperature occasions are met.

In order to achieve the aim, the basic technical scheme of the high-temperature-resistant jacket flange is as follows: the heat insulation device comprises a jacket sleeve formed by sealing and connecting an inner cylinder section and an outer cylinder section made of heat-resistant materials, annular bottom plates at two ends of the inner cylinder section and the outer cylinder section and a cover plate, wherein a heat insulation material is filled in an interlayer space of the jacket sleeve; the outer edge of the cover plate extends and is fixedly connected with an inner hole at the outer end of the flange pipe in a sealing way, and the inner end of the flange pipe is fixedly connected with the shell of the container in a sealing way; the inner shell of the container is hermetically and fixedly connected with the inner end of a tube which is sleeved outside the jacket tube, and the outer end of the tube is hermetically and fixedly connected with the inner surface of the cover plate.

In this way, the jacket pipe forms a jacket channel with a significantly enhanced thermal insulation effect. After installation, a cooling medium is introduced into the interlayer of the container. When the high-temperature medium in the container flows through the inner cylinder section, the heat insulation material can isolate most of heat, although the heat is still transferred to the cylinder tube, the cooling medium in the interlayer can continuously play a role of cooling the cylinder tube, so that the heat transferred to the flange tube is obviously reduced, the temperature of the pressure-bearing flange tube is maintained in a normal range, the material of the flange tube can be common non-high-temperature-resistant material, and the cost is saved and the manufacturing difficulty is reduced on the premise of ensuring the service performance of the flange tube.

The utility model is further perfected in that the outer circle of the outer cylinder section is fixedly connected with a baffle ring for supporting the cylinder tube, so that the rigidity and the strength between the outer cylinder section and the cylinder tube are better.

The utility model has the further improvement that the bottom plate, the inner cylinder section and the outer cylinder section are integrally formed.

The utility model is further perfected that the container is a jacket furnace body with a sealed interlayer formed by an outer shell and an inner shell, and the top and the bottom of a cylindrical barrel of the jacket furnace body are respectively provided with an upper end enclosure and a lower end enclosure in a spherical crown shape; the high-temperature-resistant jacket flange is positioned on one side of the cylindrical barrel body adjacent to the upper end enclosure; two sides of the upper end enclosure are respectively provided with a jacket steam outlet and a jacket vent which extend upwards; the cylindrical barrel is provided with an upper manhole and a lower material meter interface; two sides of the lower end socket are respectively provided with a hearth jacket water inlet and a boiler steam inlet which extend towards the lateral lower part; and burner ports are respectively arranged at two sides of the cylindrical barrel body adjacent to the lower end enclosure.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the thermal insulation principle of the embodiment of fig. 1.

Fig. 3 is a schematic structural diagram of a use state of the embodiment of fig. 1.

Detailed Description

Example one

In the high-temperature resistant jacket flange of the present embodiment, as shown in fig. 1, an inner joint 2 and an outer joint 4 made of heat-resistant steel S39042, and annular bottom plates 1 and cover plates 6 at both ends thereof are sealed and welded to form a jacket pipe. The interlayer space of the jacketed pipe is filled with refractory cotton heat insulation material 5.

The outer edge of the cover plate 6 is expanded and extended to be welded with the inner hole of the outer end of a 16Mn forging flange pipe 7 in a sealing mode, and the inner end of the flange pipe 7 is welded with the shell 9 of the container in a sealing mode. The inner shell 10 of the container is hermetically welded with the inner end of a bobbin 8 which is sleeved outside the jacket tube, and the outer end of the bobbin 8 is hermetically welded with the inner surface of the cover plate 6.

The high-temperature-resistant jacket flange of this example was applied to a vertical test furnace shown in fig. 3.

The test furnace is a jacket furnace body with a sealed interlayer formed by an outer shell 9 and an inner shell 10, and the top and the bottom of a cylindrical barrel of the furnace body are respectively provided with an upper end enclosure and a lower end enclosure in a spherical crown shape. The high-temperature-resistant jacket flange N3 is used as a synthesis gas outlet and is positioned on one side of the cylindrical barrel body adjacent to the upper end enclosure; two sides of the upper end enclosure are respectively provided with an upward extending jacket steam outlet N1 and a jacket vent N2; the cylinder body on the opposite side of the synthesis gas outlet of the high-temperature resistant jacket flange N3 is provided with an upper manhole N10 and a lower material meter port N9. Two sides of the lower end enclosure are respectively provided with a hearth jacket water inlet N7 and a boiler steam inlet N5 which extend towards the lateral lower part; in addition, a cooling purging port N8 and a jacket drain port N6 are also arranged. Two sides of the cylindrical barrel body adjacent to the lower end enclosure are respectively provided with a burner nozzle N4. In addition, a plurality of temperature and pressure measuring ports are arranged on the upper part and the lower part of the cylindrical barrel at intervals. The high temperature resistant jacket flange synthesis gas export of this stove sets up completely and the position is reasonable with other function exports, in its jacket: the working pressure is 1.0 MPa, the design pressure is 1.6MPa, the working temperature is 201 ℃, the design temperature is 210 ℃, the medium is water vapor and the material is Q345R; in the furnace body: the working pressure is 0.6MPa, the design pressure is 1.6/-0.25MPa, the working temperature is 201 ℃, the design temperature is 250 ℃, and the material is high-temperature resistant stainless steel S39042.

In operation, as shown in FIG. 2, cooling water is introduced into the interlayer. When the high-temperature medium in the equipment flows to the jacket sleeve, the heat insulation material can isolate most of heat, and part of heat transferred to the bobbin can be cooled down continuously due to the circulation of the cooling medium, so that the temperature on the flange pipe can be maintained within a normal range.

Experiments show that the method has the following beneficial effects:

1. meanwhile, the ideal cooling effect is ensured by means of the heat insulating material and jacket cooling.

2. The flange pipe can be made of common carbon steel, so that the cost is saved and the manufacturing is simple.

3. High temperature resistance and heat insulation material filling combination, and the service life is prolonged.

In addition to the above embodiments, the present invention may have other embodiments, and all technical solutions formed by equivalent transformation fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a high temperature resistant jacket flange which characterized in that: the heat-insulating sleeve comprises a heat-resistant inner shell ring (2), a heat-resistant outer shell ring (4), annular bottom plates (1) at two ends of the heat-resistant inner shell ring and a cover plate (6) which are hermetically connected to form a jacket sleeve, wherein a heat-insulating material (5) is filled in an interlayer space of the jacket sleeve; the outer edge of the cover plate (6) extends and is fixedly connected with an inner hole at the outer end of the flange pipe (7) in a sealing way, and the inner end of the flange pipe is fixedly connected with the shell of the container in a sealing way; the inner shell of the container is hermetically and fixedly connected with the inner end of a tube (8) which is sleeved outside the jacket tube, and the outer end of the tube is hermetically and fixedly connected with the inner surface of the cover plate.

2. A high temperature resistant jacket flange according to claim 1, wherein: and the outer circle of the outer cylinder section is fixedly connected with a baffle ring for supporting the bobbin.

3. A high temperature resistant jacket flange according to claim 2, wherein: the bottom plate, the inner cylinder section and the outer cylinder section are integrally formed.

4. A high temperature resistant jacket flange according to claim 3, wherein: the container is a jacket furnace body with a sealed interlayer formed by an outer shell and an inner shell, and the top and the bottom of a cylindrical barrel of the jacket furnace body are respectively provided with an upper end enclosure and a lower end enclosure in a spherical crown shape; the high-temperature resistant jacket flange is positioned on one side of the cylindrical barrel body adjacent to the upper end enclosure; two sides of the upper end enclosure are respectively provided with a jacket steam outlet and a jacket vent which extend upwards; the cylindrical barrel is provided with an upper manhole and a lower material meter interface; two sides of the lower end socket are respectively provided with a hearth jacket water inlet and a boiler steam inlet which extend towards the lateral lower part; and burner ports are respectively arranged at two sides of the cylindrical barrel body adjacent to the lower end enclosure.