CN220250753U - Inner pipe body expansion sealing structure of high-temperature heat exchanger - Google Patents

Abstract

The utility model provides an inner pipe body expansion sealing structure of a high-temperature heat exchanger, which comprises a cylinder body, wherein an inner cover body and an outer cover body are arranged on the cylinder body, the inner cover body moves up and down relative to the outer cover body, a connecting pipe is arranged on the outer cover body, a discharge pipe is arranged on the inner cover body, the connecting pipe is sleeved on the outer surface of the discharge pipe, a gap is arranged between the connecting pipe and the discharge pipe, a filler is arranged between the gap to reduce friction force, and a gap is arranged between the connecting pipe and the discharge pipe through the sleeve connection of the connecting pipe on the outer surface of the discharge pipe, and the filler is arranged between the gap to reduce friction force, so that the relative movement between the connecting pipe and the discharge pipe is smoother.

Description

Inner pipe body expansion sealing structure of high-temperature heat exchanger

Technical Field

The utility model relates to an expansion sealing structure of an inner pipe body of a high-temperature heat exchanger.

Background

The heat exchanger is a process equipment for realizing heat transfer between materials, is widely applied to industries such as petroleum, chemical industry, electric power, metallurgy, electric power, light industry, food and the like, and has the advantages of simple structure and strong applicability because the maximum use amount in the heat exchange equipment is a shell-and-tube heat exchanger at present.

In the operation process of the heat exchange equipment, when the temperature difference between the cold side and the hot side is large, the traditional U-shaped tube is mostly adopted, the U-shaped tube heat exchanger is suitable for high-temperature and high-pressure occasions where the medium inside and outside the tube is clean and difficult to scale, but the tube pass flow area is small, the flow resistance is large, and the bent tube section is easy to scale and can not be cleaned, so that the heat exchange equipment can not be used for a large-flow working condition, and the inner cover body and the outer cover body of the existing heat exchange tube adopting the floating tube plate can generate large friction force when floating.

Disclosure of Invention

The utility model provides an inner pipe body expansion sealing structure of a high-temperature heat exchanger, which comprises a cylinder body, wherein an inner cover body and an outer cover body are arranged on the cylinder body, the inner cover body moves up and down relative to the outer cover body, a connecting pipe is arranged on the outer cover body, a discharge pipe is arranged on the inner cover body, the connecting pipe is sleeved on the outer surface of the discharge pipe, a gap is arranged between the connecting pipe and the discharge pipe, and a filler is arranged between the gap to reduce friction force.

In one or more embodiments, a connection part is formed on the discharge pipe, a concave part is formed on the outer surface of the connection part, and the connection pipe is sleeved on the concave part.

In one or more embodiments, the connecting pipe is provided with an upper blocking portion and a filling portion, the upper blocking portion is attached to the outer surface of the discharge pipe, the filling portion is located below the upper blocking portion and is recessed relative to the upper blocking portion, and the filling is arranged on the filling portion.

In one or more embodiments, a gland mounting portion is further provided below the filling portion, and a gland is provided on the gland mounting portion.

In one or more embodiments, the filling part is provided with an upper filling ring, oil-immersed polytetrafluoroethylene asbestos and a lower filling ring from top to bottom in sequence.

In one or more embodiments, the connection portion is provided with a connection flange hole.

In one or more embodiments, the left and right sides of the lower port of the discharge pipe are provided with inclined chamfers.

The utility model has the beneficial effects that: through cup jointing at the discharge pipe surface at the connecting pipe, be provided with the clearance between connecting pipe and the discharge pipe, be provided with the filler between the clearance in order to reduce frictional force for the relative motion between connecting pipe and the discharge pipe is more smooth and easy.

Drawings

Fig. 1 is a schematic view of a high temperature heat exchanger.

Fig. 2 is a schematic diagram of an expansion seal structure of an inner tube body in a high temperature heat exchanger.

Detailed Description

The present application is further described with reference to the following drawings:

referring to fig. 1-2, an inner pipe body expansion sealing structure of a high temperature heat exchanger comprises a cylinder body 1, wherein an inner cover body 2 and an outer cover body 3 are arranged on the cylinder body 1, the inner cover body 2 moves up and down relative to the outer cover body 3, a connecting pipe 31 is arranged on the outer cover body 3, a discharge pipe 21 is arranged on the inner cover body 2, the connecting pipe 31 is sleeved on the outer surface of the discharge pipe 21, a gap is arranged between the connecting pipe 31 and the discharge pipe 21, and a filler 4 is arranged between the gap to reduce friction force.

Further, a connection portion 211 is formed on the discharge pipe 21, a recess is formed on an outer surface of the connection portion 211, and the connection pipe 31 is sleeved on the recess.

Further, an upper blocking portion 311 and a filling portion 312 are disposed on the connecting pipe 31, the upper blocking portion 311 is attached to the outer surface of the discharge pipe 21, the filling portion 312 is located below the upper blocking portion 311 and is recessed relative to the upper blocking portion, the filling material is disposed on the filling portion 312, a gland mounting portion 313 is disposed below the filling portion 312, a gland 5 is disposed on the gland mounting portion 313, the problem that the filling material 4 leaks after being mounted is solved through the gland 5, and the filling portion 312 is sequentially provided with an upper filling ring 41, an oil-immersed polytetrafluoroethylene asbestos 42 and a lower filling ring 43 from top to bottom to solve the problem of mounting the filling material 4.

Further, the connection pipe 31 is provided with a connection flange hole 32 to enable the connection pipe 31 to be installed.

Further, both right and left sides of the lower port of the discharge pipe 21 are provided with inclined chamfers 22.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "first", second "may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The above-mentioned preferred embodiments should be regarded as illustrative examples of embodiments of the present application, and all such technical deductions, substitutions, improvements and the like which are made on the basis of the embodiments of the present application, are considered to be within the scope of protection of the present patent.

Claims (7)

1. The utility model provides a high temperature heat exchanger inner tube body inflation seal structure, its characterized in that, includes the barrel main part, be provided with interior lid body and outer lid body in the barrel main part, the relative outer lid body reciprocates of interior lid body, be provided with the connecting pipe on the outer lid body, be provided with the discharge pipe on the interior lid body, the connecting pipe cup joints at the discharge pipe surface, be provided with the clearance between connecting pipe and the discharge pipe, be provided with the filler between the clearance in order to reduce frictional force.

2. The expansion seal structure according to claim 1, wherein a connecting portion is formed on the discharge pipe, a concave portion is formed on an outer surface of the connecting portion, and the connecting pipe is sleeved on the concave portion.

3. The expansion seal structure of an inner tube body of a high temperature heat exchanger according to claim 1, wherein an upper blocking portion and a filling portion are arranged on the connecting tube, the upper blocking portion is attached to the outer surface of the discharge tube, the filling portion is located below the upper blocking portion and is recessed relative to the upper blocking portion, and the filling material is arranged on the filling portion.

4. The expansion seal structure for a tube body in a high temperature heat exchanger according to claim 3, wherein a gland mounting portion is further provided below the filling portion, and a gland is provided on the gland mounting portion.

5. The expansion seal structure of the inner tube body of the high temperature heat exchanger according to claim 3, wherein the filling part is provided with an upper filling ring, oil-immersed polytetrafluoroethylene asbestos and a lower filling ring from top to bottom in sequence.

6. The expansion seal structure of an inner tube body of a high temperature heat exchanger according to claim 2, wherein the connecting portion is provided with a connecting flange hole.

7. The expansion seal structure of an inner tube body in a high temperature heat exchanger according to claim 1, wherein the left and right sides of the lower port of the discharge tube are provided with inclined chamfers.