CN218238472U

CN218238472U - Kettle type heat exchanger

Info

Publication number: CN218238472U
Application number: CN202222672838.8U
Authority: CN
Inventors: 韩军; 庞利洲; 程娅楠; 刘冬; 张大璇; 陈悦
Original assignee: Beijing Guangsha Huanneng Technology Co ltd
Current assignee: Beijing Guangsha Huanneng Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-01-06
Anticipated expiration: 2032-10-11

Abstract

The utility model belongs to the technical field of kettle type heat exchanger, a kettle type heat exchanger is disclosed. The kettle type heat exchanger comprises a shell and a defoaming mechanism, wherein a shell pass outlet is formed in the top of the shell and is communicated with the inside of the shell; the defoaming mechanism comprises a barrel body and a defoaming device, an air inlet and an air outlet are formed in the barrel body, the air inlet is communicated with a shell pass outlet, the air outlet is communicated with a shell pass connecting pipe, the defoaming device is arranged in the barrel body, and steam inside the shell is discharged from the shell pass outlet, the defoaming device and the shell pass connecting pipe in sequence. The entrainment volume in the above-mentioned kettle heat exchanger steam is lower, compares with prior art and lays the silk screen demister in the inside top of casing by a large scale, and the cost is reduced.

Description

Kettle type heat exchanger

Technical Field

The utility model relates to a kettle type heat exchanger technical field especially relates to a kettle type heat exchanger.

Background

The kettle type heat exchanger is provided with an enlarged evaporation space at the top, gas-liquid separation occurs in the evaporation space, the gas-liquid separation process is accompanied by entrainment, and the more entrainment, the lower the quality of steam.

As shown in fig. 1, the conventional kettle type heat exchanger includes a shell 10, a heat exchange tube set 20, a steam outlet 30 and a wire mesh demister 40, wherein the heat exchange tube set 20 is disposed inside the shell 10, the steam outlet 30 is disposed at the top of the shell 10 and is communicated with the inside of the shell 10, the wire mesh demister 40 is disposed above the inside of the shell 10, and steam is required to pass through the wire mesh demister 40 to remove mist and then is discharged out of the shell 10 from the steam outlet 30. When the kettle type heat exchanger works, the cooling medium 50 is filled below the inside of the shell 10 and exchanges heat with the heat medium inside the heat exchange tube set 20, and in the heat exchange process, the cooling medium 50 inside the shell 10 absorbs heat and boils, as shown in fig. 2, because the wire mesh demister 40 is close to the cooling medium 50, and the cooling medium 50 is in a boiling state in the shell 10, the cooling medium 50 is easy to contact with the wire mesh demister 40, and the effect of removing mist from the wire mesh demister 40 is poor. And the housing 10 is long, the cost of entirely covering the wire mesh demister 40 above the inside of the housing 10 is large.

Therefore, it is desirable to provide a kettle type heat exchanger to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a kettle type heat exchanger can reduce the entrainment volume and the cost in the steam.

To achieve the purpose, the utility model adopts the following technical proposal:

kettle formula heat exchanger includes:

the top of the shell is provided with a shell pass outlet which is communicated with the inside of the shell;

remove foam mechanism, including barrel and demister, air inlet and gas vent have been seted up on the barrel, the air inlet with shell side export intercommunication, the gas vent takes over the intercommunication with the shell side, the demister sets up in the barrel, the inside steam of casing passes through in proper order the shell side export the demister and the discharge is taken over to the shell side the casing.

As the preferred technical scheme of the kettle type heat exchanger, the outer wall of the demister is tightly attached to the inner wall of the cylinder.

As a preferable technical scheme of the kettle type heat exchanger, the diameter of the demister is larger than that of the air outlet.

As a preferred technical scheme of the kettle type heat exchanger, a first flange plate is arranged at the outlet of the shell pass, a second flange plate is arranged at the air inlet, and the first flange plate is connected with the second flange plate in a bolt connection mode.

As the preferable technical scheme of the kettle type heat exchanger, the demister is a lower-mounted wire mesh demister.

As a preferred technical scheme of the kettle type heat exchanger, a plurality of shell pass outlets are arranged, and each shell pass outlet is connected with one defoaming mechanism.

As a preferred technical scheme of the kettle type heat exchanger, two shell side outlets are arranged.

As the preferable technical scheme of the kettle type heat exchanger, the cylinder is of a bell-shaped structure.

As the preferable technical scheme of the kettle type heat exchanger, the kettle type heat exchanger further comprises a heat exchange tube set, wherein the heat exchange tube set is arranged in the shell and is in a snake shape.

The utility model has the advantages that:

the utility model provides a kettle type heat exchanger, which comprises a shell and a defoaming mechanism. The defoaming mechanism comprises a cylinder body and a demister, one end of the cylinder body is communicated with the shell pass outlet, the other end of the cylinder body is communicated with the shell pass connecting pipe, and the demister is arranged in the cylinder body. Through set up the demister in shell side exit, the inside steam of casing need just can get into shell side and take over the discharge after the demister that removes foam mechanism inside, the mesh of the entrainment volume in the steam has been realized getting rid of, with prior art with silk screen demister setting in the inside top of casing compare, the inside cold medium of casing is kept away from to the demister among the cauldron formula heat exchanger that this application provided, remove the foam effect better, and the size that removes the demister can set up according to actual need, need not to lay by a large scale, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

FIG. 1 is a schematic diagram of a tank heat exchanger of the prior art;

FIG. 2 is a schematic diagram of an evaporation flow of a prior art kettle heat exchanger;

fig. 3 is a schematic structural diagram of the kettle type heat exchanger provided by the embodiment of the utility model.

In fig. 1 and 2:

10. a housing; 20. a heat exchange tube set; 30. a steam outlet; 40. a wire mesh demister; 50. a cold medium;

in fig. 3:

100. a housing; 110. a shell side outlet; 111. a first flange plate; 200. a defoaming mechanism; 210. a barrel; 211. an exhaust port; 212. a second flange plate; 220. a demister; 300. and a heat exchange tube set.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The inside heat exchange tube group that is equipped with of cauldron formula heat exchanger's casing, the heat exchange tube flows hot medium in the group, the inside cold medium that flows of casing, hot medium and cold medium carry out the heat transfer in the casing is inside, be equipped with an evaporation space in the inside top of casing, the cold medium meets behind the hot medium because the too high vaporization of temperature is steam, steam passes through the steam outlet discharge casing of the inside top of casing, certain foam can be smugglied secretly during steam is discharged to influence the quality of steam.

As shown in fig. 1 and 2, the conventional kettle type heat exchanger includes a shell 10, a heat exchange tube set 20, a steam outlet 30, and a wire mesh demister 40, wherein the heat exchange tube set 20 is disposed inside the shell 10, the steam outlet 30 is disposed at the top of the shell 10 and is communicated with the inside of the shell 10, the wire mesh demister 40 is disposed above the inside of the shell 10, and steam is required to pass through the wire mesh demister 40 to remove mist and then is discharged out of the shell 10 from the steam outlet 30. When the kettle type heat exchanger works, the cooling medium 50 is filled below the inside of the shell 10 and exchanges heat with the heat medium inside the heat exchange tube set 20, and in the heat exchange process, the cooling medium 50 inside the shell 10 absorbs heat and boils, as shown in fig. 2, because the wire mesh demister 40 is close to the cooling medium 50, and the cooling medium 50 is in a boiling state in the shell 10, the cooling medium 50 is easy to contact with the wire mesh demister 40, and the effect of removing mist from the wire mesh demister 40 is poor. And the case 10 is long, the cost of covering the wire mesh demister 40 entirely over the inside of the case 10 is large.

In order to solve the problem, the utility model provides a kettle type heat exchanger can reduce the entrainment volume and the cost in the steam.

Specifically, as shown in fig. 3, the tank heat exchanger includes a housing 100 and a defoaming mechanism 200. Wherein, the top of the shell 100 is provided with a shell side outlet 110, and the shell side outlet 110 is communicated with the inside of the shell 100. The defoaming mechanism 200 comprises a cylinder 210 and a demister 220, the cylinder 210 is provided with an air inlet and an air outlet 211, the air inlet is communicated with a shell pass outlet 110, the air outlet 211 is communicated with the shell pass connecting pipe, the demister 220 is arranged in the cylinder 210, and steam inside the shell 100 sequentially passes through the shell pass outlet 110, the demister 220 and the shell pass connecting pipe and is discharged out of the shell 100.

Through connecting the structure of removing the foam in shell side export 110 department for the demister 220 keeps away from the inside cold medium of casing 100, and then has improved the effect that demister 220 got rid of the fog foam, and then has improved the quality of steam. And compared with the prior art that the wire mesh demister 220 is covered on the upper part of the inner part of the shell 100 in a large area, the size of the demister 220 in the defoaming mechanism 200 can be set smaller, and the equipment cost is reduced.

Further, the outer wall of the demister 220 is tightly attached to the inner wall of the cylinder 210, so that the steam with the mist is prevented from passing through the gap between the demister 220 and the cylinder 210 and not passing through the demister 220 for defoaming, and the effect of removing the mist by the demister 220 is improved.

Further, in this embodiment, the diameter of the demister 220 is greater than the diameter of the exhaust port 211, and the diameter of the exhaust port 211 can be set according to the size of the joint of the original shell side adapter, so that the shell side adapter does not need to be changed, and the development cost is reduced. By setting the diameter of the demister 220 to be large, the ability of the demister 220 to remove mist can be improved.

Preferably, a first flange 111 is arranged at the shell side outlet 110, a second flange 212 is arranged at the air inlet, and the first flange 111 and the second flange 212 are connected through bolts. Specifically, the bolts pass through the first flange 111 and the second flange 212 to be bolted to the nuts. The first flange 111 is arranged at the shell side outlet 110, and the second flange 212 is arranged at the air inlet of the cylinder 210, so that the cylinder 210 and the shell side outlet 110 can be conveniently mounted and dismounted.

Optionally, in the present embodiment, the demister 220 is an under-mounted wire mesh demister 220. Since the structure of the wire mesh demister 220 is prior art, the structure thereof will not be described in detail. The size of the model of the wire mesh demister 220 can be determined by calculation with reference to the HGT 21618-1998, and the diameter of the exhaust port 211 can be set appropriately according to the size of the wire mesh demister 220.

Further, a plurality of shell-side outlets 110 may be provided, and each shell-side outlet 110 is connected to one defoaming mechanism 200. By providing a plurality of shell-side outlets 110, the amount of steam emitted can be increased. In the present embodiment, two shell-side outlets 110 are provided. In other embodiments, the number of the shell-side outlets 110 may also be other, such as three, four, etc., and may be set according to actual needs.

Optionally, in this embodiment, the cylinder 210 has a bell-shaped structure, which facilitates processing. In other embodiments, the shape of the cylinder 210 may be other, and may be set according to actual needs.

Preferably, the tank heat exchanger further comprises a heat exchange tube set 300, the heat exchange tube set 300 is disposed inside the shell 100, and the heat exchange tube set 300 is serpentine. The heat exchange tube set 300 is in a snake shape, so that the evaporator can bear large temperature difference of cold and hot media, and the safety of the kettle type heat exchanger structure is guaranteed.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Kettle formula heat exchanger, its characterized in that includes:

the shell (100), the top of the shell (100) is provided with a shell pass outlet (110), and the shell pass outlet (110) is communicated with the inside of the shell (100);

remove foam mechanism (200), including barrel (210) and demister (220), air inlet and gas vent (211) have been seted up on barrel (210), the air inlet with shell side export (110) intercommunication, gas vent (211) take over the intercommunication with shell side, demister (220) set up in barrel (210), the inside steam of casing (100) passes through in proper order shell side export (110) demister (220) and shell side take over the discharge casing (100).

2. The kettle heat exchanger of claim 1, wherein an outer wall of the demister (220) is in close proximity to an inner wall of the barrel (210).

3. The tank heat exchanger of claim 1, wherein the demister (220) has a diameter larger than a diameter of the exhaust port (211).

4. The tank heat exchanger according to claim 1, wherein a first flange (111) is arranged at the shell side outlet (110), a second flange (212) is arranged at the air inlet, and the first flange (111) and the second flange (212) are connected in a bolt connection manner.

5. The kettle heat exchanger of claim 4, wherein the demister (220) is an under-mounted wire mesh demister (220).

6. The tank heat exchanger according to any one of claims 1 to 5, wherein a plurality of shell-side outlets (110) are provided, and one defoaming mechanism (200) is connected to each shell-side outlet (110).

7. The kettle heat exchanger of claim 6, wherein there are two shell-side outlets (110).

8. The kettle heat exchanger of any one of claims 1-5, wherein the cylinder (210) is a bell-type structure.

9. The tank heat exchanger of any one of claims 1-5, further comprising a heat exchange tube set (300), the heat exchange tube set (300) disposed within the housing (100), the heat exchange tube set (300) having a serpentine shape.