CN211120759U

CN211120759U - Double-tube-plate heat exchanger capable of preventing secondary pollution

Info

Publication number: CN211120759U
Application number: CN201922146271.9U
Authority: CN
Inventors: 于长友; 姜宇; 王远成; 温莉欣
Original assignee: Liaoning Tianshuo Technology Co ltd
Current assignee: Liaoning Tianshuo Technology Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-07-28
Anticipated expiration: 2029-12-04

Abstract

The utility model discloses a double-tube plate heat exchanger capable of preventing secondary pollution, which comprises an outer shell, wherein an inner shell is arranged in the outer shell, the two ends of the outer shell are respectively provided with a tube pass inlet and a tube pass outlet, the two sides of the outer shell are respectively provided with a shell pass inlet and a shell pass outlet, a plurality of heat exchange tubes are arranged in the inner shell, and a heat conduction cavity is formed between the inner shell and the plurality of heat exchange tubes. Preventing leakage of the medium.

Description

Double-tube-plate heat exchanger capable of preventing secondary pollution

Technical Field

The utility model relates to a heat exchanger technical field particularly, is a can prevent secondary pollution's double-tube-plate heat exchanger.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied.

Along with the continuous expansion of the society, the heat exchanger technology is continuously promoted, a double-tube-plate heat exchanger gradually appears, and the inner part of the double-tube-plate heat exchanger is isolated by arranging two barriers of an inner tube plate and an outer tube plate, so that the two media are prevented from being directly mixed to form pollution due to medium leakage.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model discloses a double-tube plate heat exchanger capable of preventing secondary pollution, which comprises an outer shell, an inner shell is arranged in the outer shell, a tube pass inlet and a tube pass outlet are respectively arranged at two ends of the outer shell, the two sides of the outer shell are respectively provided with a shell pass inlet and a shell pass outlet, the inner shell is internally provided with a plurality of heat exchange tubes, a heat conducting cavity is formed between the inner shell and the heat exchange tubes, the tube pass inlet and the tube pass outlet are connected with the heat exchange tubes through connecting tubes, an inner pipe plate and an outer pipe plate are arranged between the outer shell and the tube pass inlet, an inner pipe plate and an outer pipe plate are arranged between the outer shell and the tube pass outlet, an isolation cavity is formed between the inner pipe plate and the outer pipe plate, and the inner pipe plate and the outer pipe plate are arranged on the outer side of the connecting pipe.

Preferably, the inner pipe plate and the inner shell are connected by a plurality of expansion joints.

Preferably, the number of the plurality of expansion joints is four.

Preferably, the inner pipe plate is provided with a clamping groove, the connecting pipe is provided with a clamping ring, and the clamping groove is clamped with the clamping ring.

Preferably, pressure gauges are arranged at the tube side outlet and the shell side outlet.

The utility model provides a can prevent secondary pollution's double-tube-plate heat exchanger. The method has the following beneficial effects: through setting up the shell body, interior casing and heat exchange tube, make two kinds of media have heat conduction chamber in carrying out the heat exchange, when the pipe wall of one side circulation medium appears leaking, can not directly flow into in another medium, effectually prevent that the pipe wall from leaking and arousing the cross contamination between two kinds of media, simultaneously through setting up the expansion joint between tube sheet and interior casing including, set up the joint ring between tube sheet and the connecting pipe, make its connection leakproofness stronger, prevent that the medium from leaking.

Drawings

Fig. 1 is a schematic view of a double-tube plate heat exchanger capable of preventing secondary pollution.

The attached drawings are as follows:

1. an outer housing; 2. an inner housing; 3. a tube side inlet; 4. a tube side outlet; 5. a shell-side inlet; 6. a shell-side outlet; 7. a heat exchange pipe; 8. a heat conducting cavity; 9. a connecting pipe; 10. an inner tube sheet; 11. an outer tube sheet; 12. an expansion joint; 13. a snap ring; 14. and a pressure gauge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

the embodiment of the present invention shown in fig. 1 provides a double tube plate heat exchanger capable of preventing secondary pollution, which comprises an outer shell 1, an inner shell 2 is arranged in the outer shell 1, a tube pass inlet 3 and a tube pass outlet 4 are respectively arranged at two ends of the outer shell 1, a shell pass inlet 5 and a shell pass outlet 6 are respectively arranged at two sides of the outer shell 1, a plurality of heat exchange tubes 7 are arranged in the inner shell 2, a heat conducting cavity 8 is formed between the inner shell 2 and the plurality of heat exchange tubes 7, the tube side inlet 3 and the tube side outlet 4 are connected with the plurality of heat exchange tubes 7 through connecting tubes 9, an inner pipe plate 10 and an outer pipe plate 11 are arranged between the outer shell 1 and the tube pass inlet 3, an inner pipe plate 10 and an outer pipe plate 11 are arranged between the outer shell 1 and the tube pass outlet 4, an isolation cavity is formed between the inner pipe plate 10 and the outer pipe plate 11, and the inner pipe plate 10 and the outer pipe plate 11 are disposed outside the connecting pipe 9.

Preferably, the inner pipe plate 10 is connected to the inner shell 2 by a plurality of expansion joints 12.

Preferably, the number of the expansion joints 12 is four.

Preferably, the inner pipe plate 10 is provided with a clamping groove, the connecting pipe 9 is provided with a clamping ring 13, and the clamping groove is clamped with the clamping ring 13.

Preferably, pressure gauges 14 are arranged at the tube-side outlet 4 and the shell-side outlet 6.

According to the technical scheme, when the double-tube plate heat exchanger capable of preventing secondary pollution is used, one medium enters the space between the inner shell 2 and the outer shell 1 from the shell side inlet 5 and is discharged from the shell side outlet 6, the other medium enters the space from the tube side inlet 3 of the outer shell 1 and is discharged from the tube side outlet 4, heat is conducted through the heat conducting cavity 8 between the inner shell 2 and the heat exchange tube 7, heat is exchanged, after the double-tube plate heat exchanger is used for a long time, when the inner shell 2 or the heat exchange tube 7 is abraded and leaked, the medium is discharged into the heat conducting cavity 8 and cannot be directly contacted with the other medium to cause direct cross pollution of the two media, and after a worker finds that the pressure of the pressure gauge 14 at the tube side outlet 4 or the shell side outlet 6 is changed, the double-tube plate heat exchanger can check equipment to determine whether leakage occurs, and meanwhile, a plurality of expansion joints 12 are arranged between the inner tube plate 10 and the inner shell, a clamping ring 13 is arranged between the inner shell 2 and the connecting pipe 9, so that the sealing performance is enhanced, and the leakage of a medium is prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-tube-plate heat exchanger capable of preventing secondary pollution is characterized by comprising an outer shell (1), an inner shell (2) is arranged in the outer shell (1), a tube pass inlet (3) and a tube pass outlet (4) are respectively arranged at two ends of the outer shell (1), a shell pass inlet (5) and a shell pass outlet (6) are respectively arranged at two sides of the outer shell (1), a plurality of heat exchange tubes (7) are arranged in the inner shell (2), a heat conduction cavity (8) is formed between the inner shell (2) and the plurality of heat exchange tubes (7), the tube pass inlet (3) and the tube pass outlet (4) are connected with the plurality of heat exchange tubes (7) through connecting tubes (9), an inner tube plate (10) and an outer tube plate (11) are arranged between the outer shell (1) and the tube pass inlet (3), the inner tube plate (10) and the outer tube plate (11) are arranged between the outer shell (1) and the tube pass, an isolation cavity is formed between the inner pipe plate (10) and the outer pipe plate (11), and the inner pipe plate (10) and the outer pipe plate (11) are arranged on the outer side of the connecting pipe (9).

2. Double tube-sheet heat exchanger, which is protected against secondary pollution, according to claim 1, characterised in that the inner tube sheets (10) are connected to the inner shell (2) by means of a plurality of expansion joints (12).

3. Double tube sheet heat exchanger, which is protected against secondary pollution, according to claim 2, characterised in that the number of expansion junctions (12) is four.

4. The double tube sheet heat exchanger capable of preventing secondary pollution according to claim 1, wherein a clamping groove is formed on the inner tube sheet (10), and a clamping ring (13) is formed on the connecting tube (9), and the clamping groove is clamped with the clamping ring (13).

5. The double tube sheet heat exchanger capable of preventing secondary pollution according to claim 1, wherein pressure gauges (14) are arranged at the tube-side outlet (4) and the shell-side outlet (6).