CN216409858U - Shell and tube heat exchanger with cavity - Google Patents

Abstract

The utility model provides a shell and tube heat exchanger with a cavity, which comprises a shell, wherein a heat exchange cavity is formed in the shell, a first medium pipeline is arranged in the heat exchange cavity, the first medium pipeline comprises a first pipeline component and a second pipeline component which are arranged in opposite directions, the first pipeline component and the second pipeline component respectively comprise a plurality of heat exchange tubes which are overlapped together, the heat exchange tubes are U-shaped, pipe orifices at two ends of the heat exchange tubes forming the first pipeline component face to a first end of the shell, pipe orifices at two ends of the heat exchange tubes forming the second pipeline component face to a second end of the shell, flange plates are respectively fixed on end faces of the pipe orifices of the heat exchange tubes forming the first pipeline component and the second pipeline component, metal covers are fixed on the flange plates, an integrated cavity is formed between the metal covers and the flange plates, the integrated cavity comprises a first medium inlet cavity and a first medium outlet cavity which are mutually independent, the pipe orifices at two ends of the same heat exchange pipe are respectively communicated with the first medium inlet chamber and the first medium outlet chamber.

Description

Shell and tube heat exchanger with cavity

Technical Field

The utility model relates to the field of shell and tube heat exchangers, in particular to a shell and tube heat exchanger with a cavity.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchangers can be classified according to the structure and can be divided into a jacketed heat exchanger, an immersed coil heat exchanger, a spray heat exchanger, a plate heat exchanger, a shell-and-tube heat exchanger and the like, wherein the shell-and-tube heat exchanger is also called a shell-and-tube heat exchanger, the heat exchanger is mainly composed of a shell tube, a tube bundle, a tube plate, an end enclosure and the like, the shell tube is mostly circular, a parallel tube bundle or a spiral tube is arranged in the shell tube, and two ends of the tube bundle are fixed on the tube plate. Two fluids for heat exchange in the shell-and-tube heat exchanger, wherein one fluid flows in the tube, and the stroke of the fluid is called as tube pass; one type of flow outside the tube is referred to as the shell side.

Traditional tubular heat exchanger can use circular ring flange in the shell outside, the gasket etc. presses into the cavity through fasteners such as screw in the shell outside, this kind of cavity that forms through the fastener amalgamation, receive the restriction of fastener locking state, if fastener crimping is fixed in-process, when circular ring flange week is along the atress inequality, can produce the gap under stress action after the crimping production is become flexible, even take place to collapse and take off the hidden danger of revealing, and, a circular ring flange for the crimping cavity exposes outside the shell, also can receive external influence, influence its and shell's connection structure's steadiness.

Disclosure of Invention

In view of this, there is a need for a shell and tube heat exchanger with its own plenum.

In order to solve the technical problems, the utility model provides a shell and tube heat exchanger with a cavity, which comprises a shell, wherein a heat exchange cavity is formed in the shell, a first medium pipeline is arranged in the heat exchange cavity, the first medium pipeline comprises a first pipeline assembly and a second pipeline assembly which are opposite in installation direction, the first pipeline assembly and the second pipeline assembly are respectively composed of a plurality of heat exchange tubes which are overlapped together, the heat exchange tubes are U-shaped, pipe orifices at two ends of the heat exchange tubes which compose the first pipeline assembly face to a first end of the shell, pipe orifices at two ends of the heat exchange tubes which compose the second pipeline assembly face to a second end of the shell, flange plates are respectively fixed on end faces of the pipe orifices of the heat exchange tubes which compose the first pipeline assembly and the second pipeline assembly, metal covers are fixed on the flange plates, and an integrated cavity is formed between the metal covers and the flange plates, the integrated chamber comprises a first medium inlet chamber and a first medium outlet chamber which are mutually independent, and pipe orifices at two ends of the same heat exchange pipe are respectively communicated with the first medium inlet chamber and the first medium outlet chamber.

Preferably, a first medium inlet pipe and a first medium outlet pipe are connected to a first end and a second end of the shell, the first medium inlet pipe and the first medium outlet pipe are respectively communicated with the heat exchange pipe through the first medium inlet chamber and the first medium outlet chamber, a second medium inlet pipe and a second medium outlet pipe are respectively connected to two ends of the lateral surface of the shell, and the second medium inlet pipe and the second medium outlet pipe are both communicated with the heat exchange cavity.

Preferably, the metal cover comprises a metal plate fixed on the flange plate in an enclosing manner and a closing plate covering the metal plate, and the first medium inlet chamber and the first medium outlet chamber are formed by enclosing the flange plate, the closing plate and the metal plate.

Preferably, the flange plate is provided with a limiting groove, and the end part of the metal plate is embedded in the limiting groove.

Preferably, the flange plate and the closing plate are respectively provided with a screw hole, a screw rod is fixed between the flange plate and the closing plate, and two ends of the screw rod are respectively fixed in the screw holes of the flange plate and the closing plate.

Preferably, the metal plate is fixed to the flange plate by welding, and the heat exchange tube, the flange plate and the closing plate are all made of metal.

Preferably, a plurality of flow baffle plates are further arranged in the heat exchange cavity, the flow baffle plates are parallel to each other, the flow baffle plates are connected into a whole through long rods, and the heat exchange tubes are perpendicular to the plane where the flow baffle plates are located.

Preferably, a plurality of limiting holes are formed in the flow baffle, and the heat exchange tube is inserted into the limiting holes in an opposite manner, so that the heat exchange tube is fixed on the flow baffle.

Preferably, the edge of the flow baffle is provided with a notch, and the notches of two adjacent flow baffles are staggered.

Preferably, the first medium inlet chamber comprises a first inlet chamber and a second inlet chamber, the first medium outlet chamber comprises a first outlet chamber and a second outlet chamber, the first inlet chamber corresponding to the first outlet chamber and the second inlet chamber corresponding to the second outlet chamber.

The utility model has the beneficial effects that: this product sets up integrated cavity in inside, and integrated cavity comprises flange plate, metal sheet and closing plate, does not receive the restriction of equipment condition, and integrated cavity is located the shell section of thick bamboo, and the component part of integrated cavity can not directly bear outside effort, has avoided the problem that the outer locking formula cavity of current casing reveals easily.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the utility model.

FIG. 1 is a schematic overall structure of a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of a baffle plate and a long rod according to a preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a flange plate according to a preferred embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an integrated chamber according to a preferred embodiment of the present invention;

FIG. 5 is a partial schematic view of the interior of the shell of the preferred embodiment of the present invention;

FIG. 6 is a schematic view of the internal structure of the shell according to the preferred embodiment of the present invention;

in the figure: a shell 1; a heat exchange cavity 2; a heat exchange tube 3; a flange plate 4; a metal plate 41; a closing plate 42; a limiting groove 400; a first medium inlet pipe 5; the first medium outlet pipe 6; a first medium inlet chamber 50; a first media outlet chamber 60; a second medium inlet pipe 80; the second medium outlet pipe 8; a screw hole 7; a screw 9; a flow baffle 10; a long rod 11; a limiting hole 101; a notch 102; a first inlet chamber 501; a second inlet chamber 502; a first outlet chamber 601; a second outlet chamber 602; a first inlet pipe 51; a second intake duct 52; a first outlet duct 61; a second outlet duct 62.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-6, the utility model provides a shell and tube heat exchanger with a cavity, which comprises a shell 1, wherein a heat exchange cavity 2 is formed in the shell 1, a first medium pipeline is arranged in the heat exchange cavity 2, the first medium pipeline comprises a first pipeline component and a second pipeline component which are opposite in installation direction, the first pipeline component and the second pipeline component are respectively composed of a plurality of heat exchange tubes 3 which are overlapped together, the heat exchange tubes 3 are in a U shape, tube orifices at two ends of the heat exchange tubes 3 which compose the first pipeline component face to a first end of the shell 1, tube orifices at two ends of the heat exchange tubes 3 which compose the second pipeline component face to a second end of the shell 1, flange plates 4 are respectively fixed on end surfaces of the heat exchange tubes 3 which compose the first pipeline component and the second pipeline component, and metal covers are fixed on the flange plates 4, an integrated cavity is formed between the metal cover and the flange plate 4, the integrated cavity comprises a first medium inlet cavity 50 and a first medium outlet cavity 60 which are independent from each other, and pipe orifices at two ends of the same heat exchange pipe 3 are respectively communicated with the first medium inlet cavity 50 and the first medium outlet cavity 60. The assembly condition is not limited, the integrated cavity is located in the shell, the components of the integrated cavity cannot directly bear external acting force, and the problem that the locking cavity outside the existing shell is easy to leak is solved. Simultaneously, a plurality of heat exchange tubes that fold together constitute first pipeline subassembly and the second pipeline subassembly that installation opposite direction respectively, first pipeline subassembly and the independent heat transfer of second pipeline subassembly to make the heat exchange efficiency between first medium and the second medium higher. Preferably, in practice, fluorine is generally selected as the first medium, and water is generally selected as the second medium.

Referring to fig. 1, in a preferred embodiment, a first medium inlet pipe 5 and a first medium outlet pipe 6 are connected to a first end and a second end of the shell cylinder 1, the first medium inlet pipe 5 and the first medium outlet pipe 6 are respectively communicated with the corresponding heat exchange pipes 3 through the first medium inlet chamber 50 and the first medium outlet chamber 60, a second medium inlet pipe 80 and a second medium outlet pipe 8 are respectively connected to two ends of the lateral surface of the shell cylinder 1, and the second medium inlet pipe 80 and the second medium outlet pipe 8 are communicated with the heat exchange cavity 2.

Referring to fig. 3 and 4, in a preferred embodiment, the metal cover includes a metal plate 41 fixed to the flange plate 4 in a surrounding manner and a closing plate 42 covering the metal plate 41, and the first medium inlet chamber 50 and the first medium outlet chamber 60 are formed by the flange plate 4, the closing plate 42, and the metal plate 41 in a surrounding manner. The integrated cavity with the structure has fewer parts, so that the maintenance is time-consuming and labor-consuming, and the maintenance cost is effectively reduced.

Referring to fig. 3 and 4, in a preferred embodiment, the flange plate 4 is provided with a limiting groove 400, and the end of the metal plate 41 is embedded in the limiting groove 400. The limiting groove 400 can increase the manufacturing efficiency of the integrated chamber, thereby saving the cost.

Referring to fig. 3 and 4, in a preferred embodiment, the flange plate 4 and the closing plate 42 are respectively provided with a screw hole 7, a screw 9 is fixedly connected between the flange plate 4 and the closing plate 42, and two ends of the screw 9 are respectively fixed in the screw holes 7 of the flange plate 4 and the closing plate 42. The two ends of the screw 9 are respectively fixed with the flange plate 4 and the closing plate 42, so that the pressure change caused by the liquid flow in the integrated chamber can be counteracted, and the expansion deformation of the flange plate 4 and the closing plate 42 caused by the pressure change can be avoided.

Referring to fig. 3 and 4, in a preferred embodiment, the metal plate 41 is fixed to the flange plate 4 by welding, the gap at the contact position between the flange plate 4, the closing plate 42 and the metal plate 41 is sealed by welding, and the heat exchange tube 3, the flange plate 4 and the closing plate 42 are made of metal.

Referring to fig. 2, in a preferred embodiment, a plurality of flow baffles 10 are further disposed in the heat exchange cavity 23, the flow baffles 10 are parallel to each other, the flow baffles 10 are connected to each other by long rods 11, and the heat exchange tubes 3 are perpendicular to a plane in which the flow baffles 10 are located.

Referring to fig. 2, in a preferred embodiment, a plurality of limiting holes 101 are formed in the flow baffle 10, and the heat exchange tube 3 is inserted into the limiting holes 101 in an aligned manner, so that the heat exchange tube 3 is fixed on the flow baffle 10.

Referring to fig. 2, in a preferred embodiment, notches 102 are formed on edges of the flow baffle 10, and the notches 102 of two adjacent flow baffles 10 are staggered. The liquid flowing in the second medium flows in a S-shaped roundabout way, and the contact area between the two heat exchange liquids is increased.

Referring to fig. 1, 4 and 5, in a preferred embodiment, the first medium inlet chamber 50 comprises a first inlet chamber 501 and a second inlet chamber 502, the first medium outlet chamber 60 comprises a first outlet chamber 601 and a second outlet chamber 602, the first inlet chamber 501 corresponds to the first outlet chamber 601, i.e. the first inlet chamber 501 and the first outlet chamber 601 correspond to the two-end nozzles of the same batch of heat exchange tubes 3, respectively, and the second inlet chamber 502 corresponds to the second outlet chamber 602, i.e. the second inlet chamber 502 and the second outlet chamber 602 correspond to the two-end nozzles of another batch of heat exchange tubes 3, respectively. The first intake pipe 51 is connected to the first inlet chamber 501; the second intake manifold 52 is connected to a second inlet chamber 502; the first outlet duct 61 is connected to the first outlet chamber 601; the second outlet tube 62 is connected to the second outlet chamber 602. The first medium inlet chamber 50 is divided into separate first and second inlet chambers 501, 502 and the first medium outlet chamber 60 is divided into separate first and second outlet chambers 601, 602, resulting in a higher efficiency of heat exchange between the first and second media.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the terms "preferred embodiment," "yet another embodiment," "other embodiments," or "specific 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 application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A shell and tube heat exchanger with a cavity is characterized by comprising a shell, wherein a heat exchange cavity is formed in the shell, a first medium pipeline is arranged in the heat exchange cavity and comprises a first pipeline assembly and a second pipeline assembly which are opposite in installation direction, the first pipeline assembly and the second pipeline assembly respectively comprise a plurality of heat exchange tubes which are overlapped together, the heat exchange tubes are U-shaped, tube orifices at two ends of the heat exchange tubes forming the first pipeline assembly face the first end of the shell, tube orifices at two ends of the heat exchange tubes forming the second pipeline assembly face the second end of the shell, flange plates are respectively fixed on the end faces of the tube orifices of the heat exchange tubes forming the first pipeline assembly and the second pipeline assembly, metal covers are fixed on the flange plates, and an integrated cavity is formed between the metal covers and the flange plates, the integrated chamber comprises a first medium inlet chamber and a first medium outlet chamber which are mutually independent, and pipe orifices at two ends of the same heat exchange pipe are respectively communicated with the first medium inlet chamber and the first medium outlet chamber.

2. The heat exchanger as claimed in claim 1, wherein a first medium inlet pipe and a first medium outlet pipe are connected to the first end and the second end of the shell, the first medium inlet pipe and the first medium outlet pipe are respectively communicated with the heat exchange pipe through the first medium inlet chamber and the first medium outlet chamber, a second medium inlet pipe and a second medium outlet pipe are respectively connected to two ends of the lateral surface of the shell, and the second medium inlet pipe and the second medium outlet pipe are both communicated with the heat exchange chamber.

3. The heat exchanger of claim 2, wherein the metal hood comprises a metal plate enclosing and fixed to the flange plate and a closing plate covering the metal plate, the first medium inlet chamber and the first medium outlet chamber being enclosed by the flange plate, the closing plate and the metal plate.

4. The heat exchanger of claim 3, wherein the flange plate is provided with a limiting groove, and the end of the metal plate is embedded in the limiting groove.

5. The heat exchanger according to claim 4, wherein the flange plate and the closing plate are respectively provided with a screw hole, a screw rod is fixed between the flange plate and the closing plate, and two ends of the screw rod are respectively fixed in the screw holes of the flange plate and the closing plate.

6. The heat exchanger of claim 3, wherein the metal plate is fixed to the flange plate by welding, and the heat exchange tube, the flange plate and the closing plate are made of metal.

7. The heat exchanger as claimed in claim 3, wherein a plurality of flow baffles are further arranged in the heat exchange cavity, the flow baffles are parallel to each other, the flow baffles are connected into a whole through long rods, and the heat exchange tubes are perpendicular to the plane of the flow baffles.

8. The heat exchanger as claimed in claim 7, wherein a plurality of limiting holes are formed in the flow baffle, and the heat exchange tube is inserted into the limiting holes in an aligned manner, so that the heat exchange tube is fixed on the flow baffle.

9. The heat exchanger of claim 8, wherein the flow baffle has notches formed in its edges, and the notches of two adjacent flow baffles are offset from each other.

10. The heat exchanger of claim 1, wherein the first medium inlet chamber comprises a first inlet chamber and a second inlet chamber, and the first medium outlet chamber comprises a first outlet chamber and a second outlet chamber, the first inlet chamber corresponding to the first outlet chamber, and the second inlet chamber corresponding to the second outlet chamber.

Images