CN222143826U - Heat exchange reinforcing pipe and double-pipe heat exchanger - Google Patents

Abstract

The utility model provides a heat exchange reinforcing pipe and a double-pipe heat exchanger, which are applied to the field of heat exchangers and have the technical scheme that the heat exchange reinforcing pipe comprises a shell, wherein a refrigerant pipe with a refrigerant inside is distributed in the shell; the heat exchange device comprises a shell, a partition plate, a liquid inlet pipe b, a liquid outlet pipe b, a first connecting pipe, a second connecting pipe and an original pipeline interface, wherein the space in the shell is divided into a liquid inlet cavity and a liquid outlet cavity, the liquid inlet pipe b and the liquid outlet pipe b are fixed to the shell, the liquid inlet pipe b is communicated with the liquid inlet cavity, the liquid outlet pipe b is communicated with the liquid outlet cavity, the size and the distance between the liquid inlet pipe b and the liquid outlet pipe b are the same as those between the liquid inlet pipe a and the liquid outlet pipe a, the first connecting pipe is communicated with the liquid inlet cavity and is used for being connected with the liquid inlet pipe a, and the second connecting pipe is communicated with the liquid outlet cavity and is used for being connected with the liquid outlet pipe a.

Description

Heat exchange reinforcing pipe and double-pipe heat exchanger

Technical Field

The utility model relates to the field of heat exchangers, in particular to a heat exchange reinforcing pipe and a double-pipe heat exchanger.

Background

The heat exchanger is an energy-saving device for realizing heat transfer between two or more fluids with different temperatures, and is one of main devices for transferring heat from a fluid with a higher temperature to a fluid with a lower temperature, so that the temperature of the fluid reaches the index specified by a flow, thereby meeting the requirements of process conditions and improving the utilization rate of energy.

As shown in fig. 1, a shell-and-tube heat exchanger structure belongs to the prior art, a liquid inlet tube a8 and a liquid outlet tube a9 are arranged on a shell, and the shell-and-tube heat exchanger disclosed in the chinese patent application publication No. CN112484535A is referred to for more specific structure and function.

The existing shell-and-tube heat exchanger has the problems that a single heat exchanger cannot meet the heat exchange requirement in actual use, the conventional common solution is to increase the length of the heat exchanger or connect the two heat exchangers in series, but no matter how the method is adopted, the pipeline needs to be rearranged due to the change of the position of the interface, the operation is very inconvenient, and therefore, a device capable of improving the heat exchange effect and utilizing the original pipeline interface is needed, so that the pipeline does not need to be rearranged and the replacement is convenient.

Disclosure of utility model

On the one hand, the utility model provides the heat exchange reinforcing pipe, which has the advantages that the original pipeline interface can be utilized on the basis of improving the heat exchange effect, and the pipeline is not required to be rearranged.

In another aspect, the utility model provides a dual tube heat exchanger.

The first aspect of the utility model provides a heat exchange reinforcing pipe assembled in a shell-and-tube heat exchanger, comprising:

The shell is internally provided with a refrigerant pipe with a refrigerant inside;

the separation plate is used for separating the space in the shell into a liquid inlet cavity and a liquid outlet cavity;

The liquid inlet pipe b and the liquid outlet pipe b are fixed on the shell, the liquid inlet pipe b is communicated with the liquid inlet cavity, the liquid outlet pipe b is communicated with the liquid outlet cavity, and the size and the distance between the liquid inlet pipe b and the liquid outlet pipe b are the same as those between the liquid inlet pipe a and the liquid outlet pipe a;

a first connecting pipe communicated with the liquid inlet cavity and used for being connected with the liquid inlet pipe a, and

And the second connecting pipe is communicated with the liquid outlet cavity and is used for being connected with the liquid outlet pipe a.

Through the technical scheme, when the heat exchange requirement cannot be met by using the existing shell-and-tube heat exchanger, the shell-and-tube heat exchanger is detached from the pipeline, then the first connecting pipe is connected with the liquid inlet pipe a, the second connecting pipe is connected with the liquid outlet pipe a, then the liquid inlet pipe b is arranged at the original installation position of the liquid inlet pipe a, the liquid outlet pipe b is arranged at the original installation position of the liquid outlet pipe a, liquid enters the liquid inlet cavity before entering the original shell-and-tube heat exchanger, exchanges heat with the refrigerant pipe arranged in the shell, and enters the liquid outlet cavity again to exchange heat with the refrigerant pipe after flowing out of the original shell-and-tube heat exchanger, so that the contact time of the liquid and the refrigerant pipe is prolonged, the heat exchange effect is enhanced, and meanwhile, the original pipeline and the operation are not required to be changed.

In one embodiment of the utility model, a liquid inlet baffle plate is fixed in the liquid inlet cavity and positioned between the liquid inlet pipe b and the first connecting pipe, one end of the liquid inlet baffle plate, which is close to the baffle plate, is provided with an opening, and a liquid outlet baffle plate is fixed in the liquid outlet cavity and positioned between the liquid outlet pipe b and the second connecting pipe, and one end of the liquid outlet baffle plate, which is close to the baffle plate, is provided with an opening.

Through above-mentioned technical scheme, the liquid that gets into in the feed liquor chamber from feed liquor pipe b just can reach first connecting pipe after bypassing the feed liquor baffle, the liquid that gets into in the play liquid chamber from the second connecting pipe just can reach drain pipe b after bypassing out the liquid baffle, and feed liquor baffle and play liquid baffle have increased the route that liquid passed through in the casing, and then prolonged the contact time of liquid and refrigerant pipe, further strengthen heat transfer effect.

In an embodiment of the utility model, the cooling device further includes a cooling medium inlet pipe installed on the housing for allowing cooling medium to enter the cooling medium pipe, and a cooling medium outlet pipe for allowing cooling medium to flow out of the cooling medium pipe.

The second aspect of the utility model provides a double-tube heat exchanger, which comprises the heat exchange reinforcing tube and a shell-and-tube heat exchanger, wherein the liquid inlet tube a is fixedly communicated with the first connecting tube, and the liquid outlet tube a is fixedly communicated with the second connecting tube.

As described above, the heat exchange reinforcing pipe and the double-pipe heat exchanger have the following beneficial effects:

When the prior shell-and-tube heat exchanger cannot meet the heat exchange requirement, the shell-and-tube heat exchanger is detached from the pipeline, then the first connecting pipe is connected with the liquid inlet pipe a, the second connecting pipe is connected with the liquid outlet pipe a, then the liquid inlet pipe b is arranged at the original installation position of the liquid inlet pipe a, the liquid outlet pipe b is arranged at the original installation position of the liquid outlet pipe a, liquid enters the liquid inlet cavity before entering the original shell-and-tube heat exchanger, exchanges heat with the refrigerant pipe arranged in the shell, enters the liquid outlet cavity after flowing out of the original shell-and-tube heat exchanger and exchanges heat with the refrigerant pipe again, so that the contact time of the liquid and the refrigerant pipe is prolonged, the heat exchange effect is enhanced, and the original pipeline and the operation are not required to be changed.

Drawings

Fig. 1 is a schematic view showing the structure of a shell and tube heat exchanger disclosed in the prior art.

Fig. 2 is a schematic view showing the structure of a double tube heat exchanger disclosed in an embodiment of the present utility model.

Description of element reference numerals

1. The cooling medium device comprises a shell, 2 cooling medium pipes, 3, a partition plate, 4, a liquid inlet cavity, 5, a liquid outlet cavity, 6, a liquid inlet pipe b, 7, a liquid outlet pipe b, 8, a liquid inlet pipe a, 9, a liquid outlet pipe a, 10, a first connecting pipe, 11, a second connecting pipe, 12, a liquid inlet partition plate, 13, a liquid outlet partition plate, 14, a cooling medium inlet pipe and 15, and a cooling medium outlet pipe.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

Referring to fig. 1 and 2, the present utility model provides a dual tube heat exchanger, comprising:

The shell-and-tube heat exchanger and a heat exchange reinforcing tube, wherein a liquid inlet tube a8 and a liquid outlet tube a9 are fixed on the shell of the shell-and-tube heat exchanger, and the heat exchange reinforcing tube comprises a shell 1, a partition plate 3, a liquid inlet tube b6, a liquid outlet tube b7, a first connecting tube 10 and a second connecting tube 11, wherein the structure and the function of the shell-and-tube heat exchanger are disclosed in Chinese patent application publication No. CN 112484535A.

Referring to fig. 2, a shell 1 includes a circular tube-shaped main body and end caps fixed at two ends of the main body through flanges, a refrigerant tube 2 is arranged in the shell 1, a refrigerant inlet tube 14 and a refrigerant outlet tube 15 are welded and fixed on one end cap of the shell 1, the refrigerant inlet tube 14 and the refrigerant outlet tube 15 are connected with the refrigerant tube 2, and a refrigerant is supplied into the refrigerant tube 2 through the refrigerant inlet tube 14 and the refrigerant outlet tube 15, the size of the shell 1 is the same as the shell size of the shell-and-tube heat exchanger, so that the heat exchange reinforcing tube can be installed at the original installation position of the shell-and-tube heat exchanger.

Referring to fig. 2, the partition plate 3 is sealed and fixed in the middle of the main body of the housing 1, and divides two sides of the housing 1 into a liquid inlet cavity 4 and a liquid outlet cavity 5.

Referring to fig. 2, a liquid inlet pipe b6 and a liquid outlet pipe b7 are welded and fixed on the main body of the casing 1, the liquid inlet pipe b6 is communicated with the liquid inlet cavity 4, the liquid outlet pipe b7 is communicated with the liquid outlet cavity 5, and the size and the distance between the liquid inlet pipe b6 and the liquid outlet pipe b7 are the same as those between the liquid inlet pipe a8 and the liquid outlet pipe a9, so that the liquid inlet pipe b6 and the liquid outlet pipe b7 can be directly connected into the original pipeline, and the pipeline is prevented from being rearranged and the operation is convenient.

Referring to fig. 2, a first connecting pipe 10 and a second connecting pipe 11 are welded and fixed on the main body of the shell 1, the first connecting pipe 10 is communicated with the liquid inlet cavity 4, the second connecting pipe 11 is communicated with the liquid outlet cavity 5, the first connecting pipe 10 is connected with the liquid inlet pipe a8 through a flange, and the second connecting pipe 11 is connected with the liquid outlet pipe a9 through a flange, so that the connection of the heat exchange reinforcing pipe with the shell-and-tube heat exchanger is realized.

Referring to fig. 2, the heat exchange reinforcing tube further comprises a liquid inlet partition plate 12 welded and fixed on the shell 1 and positioned in the liquid inlet cavity 4 and positioned between the liquid inlet tube b6 and the first connecting tube 10, wherein one end of the liquid inlet partition plate 12 close to the partition plate 3 is provided with an opening, and a liquid outlet partition plate 13 welded and fixed on the shell 1 and positioned in the liquid outlet cavity 5 and positioned between the liquid outlet tube b7 and the second connecting tube 11, wherein one end of the liquid outlet partition plate 13 close to the partition plate 3 is provided with an opening, liquid entering the liquid inlet cavity 4 from the liquid inlet tube b6 can reach the first connecting tube 10 after bypassing the liquid inlet partition plate 12, liquid entering the liquid outlet cavity 5 from the second connecting tube 11 can reach the liquid outlet tube b7 after bypassing the liquid outlet partition plate 13, and the liquid inlet partition plate 12 and the liquid outlet partition plate 13 lengthen the path of the liquid passing in the shell 1, thereby prolonging the contact time of the liquid and the refrigerant tube 2 and enhancing the heat exchange effect.

When the existing shell-and-tube heat exchanger cannot meet the heat exchange requirement, the shell-and-tube heat exchanger is detached from the pipeline, then the first connecting pipe 10 is connected with the liquid inlet pipe a8, the second connecting pipe 11 is connected with the liquid outlet pipe a9, then the liquid inlet pipe b6 is arranged at the original installation position of the liquid inlet pipe a8, the liquid outlet pipe b7 is arranged at the original installation position of the liquid outlet pipe a9, liquid enters the liquid inlet cavity 4 before entering the original shell-and-tube heat exchanger, exchanges heat with the refrigerant pipe 2 arranged in the shell 1, enters the liquid outlet cavity 5 again after flowing out of the original shell-and-tube heat exchanger, and therefore the contact time between the liquid and the refrigerant pipe 2 is prolonged, the heat exchange effect is enhanced, and meanwhile, the original pipeline is not required to be changed, and the operation is convenient.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. It is intended that all equivalent modifications and variations of the utility model be covered by the claims of this utility model be accomplished by those of ordinary skill in the art without departing from the spirit and scope of the utility model as disclosed herein.

Claims (4)

1. A heat exchange enhancement tube, characterized in that it is assembled in a shell and tube heat exchanger, comprising: A shell (1), wherein a refrigerant pipe (2) containing a refrigerant is arranged inside the shell (1); A partition plate (3) for dividing the space inside the housing (1) into a liquid inlet chamber (4) and a liquid outlet chamber (5); a liquid inlet pipe b (6) and a liquid outlet pipe b (7) fixed to the housing (1), the liquid inlet pipe b (6) being in communication with the liquid inlet chamber (4), the liquid outlet pipe b (7) being in communication with the liquid outlet chamber (5), the size and spacing of the liquid inlet pipe b (6) and the liquid outlet pipe b (7) being the same as the size and spacing of the liquid inlet pipe a (8) and the liquid outlet pipe a (9); a first connecting pipe (10) communicating with the liquid inlet chamber (4) and used to be connected to the liquid inlet pipe a (8); and A second connecting tube (11) communicated with the liquid outlet chamber (5) and used to be connected to the liquid outlet tube a (9). 2. The heat exchange enhancement tube according to claim 1 is characterized in that it also includes: a liquid inlet baffle (12) fixed in the liquid inlet cavity (4) and located between the liquid inlet pipe b (6) and the first connecting tube (10), and the end of the liquid inlet baffle (12) close to the partition plate (3) is set as an opening; and a liquid outlet baffle (13) fixed in the liquid outlet cavity (5) and located between the liquid outlet pipe b (7) and the second connecting tube (11), and the end of the liquid outlet baffle (13) close to the partition plate (3) is set as an opening. 3. The heat exchange enhancement tube according to claim 1 is characterized in that it also includes a refrigerant inlet pipe (14) installed on the shell (1) for supplying refrigerant to enter the refrigerant pipe (2) and a refrigerant outlet pipe (15) for supplying refrigerant to flow out of the refrigerant pipe (2). 4. A double-tube heat exchanger, characterized in that it comprises the heat exchange enhancement tube and the shell and tube heat exchanger as described in any one of claims 1 to 3, wherein the liquid inlet pipe a (8) is connected and fixed to the first connecting pipe (10), and the liquid outlet pipe a (9) is connected and fixed to the second connecting pipe (11).