U-shaped tubular heat exchanger

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a U-shaped tube type heat exchanger which comprises a shell provided with two U-shaped tubes, the two U-shaped tubes are symmetrically distributed on the inner side of the shell in an up-down staggered mode, and the two ends of each U-shaped tube penetrate through and extend to the outer side of the shell. The utility model provides an improved heat exchanger design which is characterized in that the outer side of the shell is additionally provided with a stirring assembly, the stirring assembly is further rotationally connected to the interior of the shell, and a driving part is detachably connected to the upper portion of the shell. The stirring assembly can effectively promote flowing of liquid in a shell pass during working, and therefore uniform distribution of the temperature in the heat exchanger is achieved. In addition, the stirring assembly adopts a detachable and deformable design, so that a user can easily mount and dismount the stirring assembly through a flange interface, and the convenience of overhaul and maintenance is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially relates to a U type tube -in -tube heat exchanger. BACKGROUND

[0002] U type tube -in -tube heat exchanger is a kind of heat exchange equipment widely used in heating, cooling or evaporating fluid.The equipment is mainly composed of shell, tube bundle, tube sheet and baffle plate and other components.Its core feature is that the tube is U-shaped bending, so that fluid can flow in the tube, and heat exchange is carried out with fluid outside the tube wall.This design is very effective in many industrial applications, especially in the occasion requiring efficient heat exchange.

[0003] However, the existing U type tube -in -tube heat exchanger has certain limitations in structure.For example, the U type heat exchange pipe disclosed in Chinese patent publication number "CN210108083U" mainly sets a U type pipe in the inside of shell.This design improves heat exchange efficiency to a certain extent, but still has some shortcomings.

[0004] Specifically, since the inside of shell is not provided with corresponding stirring structure, the liquid flow in shell passage is not smooth, and even does not flow, which directly affects the uniformity of temperature inside heat exchanger and reduces overall heat exchange efficiency.

[0005] Based on this, in order to solve the above problems, we propose a U type tube -in -tube heat exchanger. CONTENT OF UTILITY MODEL

[0006] The utility model aims at solving the shortcomings that no corresponding stirring structure is set in prior art, resulting in poor liquid flow in shell passage, and proposes a U type tube -in -tube heat exchanger.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme:

[0008] A U type tube -in -tube heat exchanger is designed, comprising:

[0009] Shell mounted with two U type tubes:

[0010] Two U type tubes are symmetrically and vertically staggered distributed on the inside of shell, and both ends of U type tube are penetrated and extended to the outside of shell.

[0011] Wherein, stirring assembly is further rotationally connected in the inside of shell, and driving part is detachably connected above the shell, and the driving part is used to drive the stirring assembly to rotate.

[0012] The stirring assembly has a first form and a second form, and the inner side of the shell is fixed with a coupling member for driving the stirring assembly to change from the first form to the second form.

[0013] Further, the stirring assembly comprises a fixed shaft, two connecting seats are fixedly installed on the outer side of the fixed shaft, and connecting rods are pivotally connected on the two sides of the connecting seats, wherein stirring rods are pivotally connected between the two connecting rods on the same side.

[0014] Further, the stirring assembly comprises a fixed shaft, two connecting seats are fixedly installed on the outer side of the fixed shaft, and connecting rods are pivotally connected on the two sides of the connecting seats, wherein stirring rods are pivotally connected between the two connecting rods on the same side.

[0015] Further, the first driving rod is circumferentially locked with the fixed shaft, and a spring is fixedly connected between the first driving rod and the fixed shaft.

[0016] Further, the coupling member is a rod member fixed in the inner side of the shell, and the bottom of the first driving rod is in contact with and rotates with the rod member.

[0017] Further, the driving member is a motor, a sleeve is fixedly installed on the shaft end of the motor, one end of the fixed shaft is inserted into the sleeve, at least one positioning glass bead is embedded on the outer periphery of the fixed shaft, and a hole matched with the telescopic end of the positioning glass bead is formed in the outer side of the sleeve.

[0018] Further, the top of the shell is provided with a flange interface, the motor is installed on the flange interface through fasteners, and the stirring assembly enters the shell along the flange interface.

[0019] The U-shaped tube heat exchanger has the advantages that: the improved heat exchanger design is provided, a stirring assembly is additionally arranged on the outer side of the shell, the stirring assembly can effectively promote the flow of liquid in the shell side during work, and uniform distribution of the temperature in the heat exchanger is realized. In addition, the stirring assembly is designed to be detachable and deformable, so that the user can easily install and detach the stirring assembly through the flange interface, and the convenience of maintenance and repair is greatly improved. Secondly, the design further comprises two U-shaped tubes located at the upper and lower ends of the heat exchanger, and the two U-shaped tubes can be filled with medium, so that the production efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a perspective view of the utility model;

[0021] Fig. 2 It is a sectional view of the utility model;

[0022] Fig. 3 The utility model discloses a stirring assembly structure schematic view.

[0023] In the drawing: 1, shell; 11, U-shaped tube; 12, flange interface; 2, stirring assembly; 21, fixed shaft; 22, connecting seat; 23, connecting rod; 24, stirring rod; 25, first drive rod; 26, drive seat; 27, second drive rod; 28, spring; 29, positioning glass bead; 3, driving part; 31, sleeve; 4, coupling. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Reference Figs. 1-3 For an embodiment of the utility model, it discloses a U-shaped tube heat exchanger, which promotes the liquid flow in the shell by stirring, so that the heat exchange temperature in the heat exchanger is more uniform. Specifically, the heat exchanger comprises a shell 1 provided with two U-shaped tubes 11. Of course, a liquid inlet and a liquid outlet are also arranged on the upper side and the lower side of the shell 1 respectively. When working, a first medium is added in the U-shaped tube 11, and a second medium is added in the shell 1, so that the heat exchange operation is completed:

[0026] The two U-shaped tubes 11 are symmetrically and vertically staggered distributed on the inner side of the shell 1, and the two ends of the U-shaped tube 11 penetrate and extend to the outer side of the shell 1.

[0027] In the inner side of the shell 1, a stirring assembly 2 is also rotationally connected. A driving part 3 is detachably connected above the shell 1. The driving part 3 is used for driving the stirring assembly 2 to rotate.

[0028] The stirring assembly 2 has a first form and a second form. The inner side of the shell 1 is fixed with a coupling 4 for converting the stirring assembly 2 from the first form to the second form. The first form and the second form will be described in detail later, and will not be described here.

[0029] In some embodiments, the stirring assembly 2 in the utility model comprises a fixed shaft 21. Two connecting seats 22 are fixedly installed on the outer side of the fixed shaft 21. Connecting rods 23 are pinned on both sides of the connecting seat 22. The stirring rod 24 is pinned between the two connecting rods 23 on the same side. That is, the two connecting rods 23, the stirring rod 24 and the fixed shaft 21 on one side in this embodiment form a parallelogram structure. Since the connecting rods are pinned between the components, the stirring rod 24 can realize the folding effect.

[0030] That is, the two sides of the stirring rod 24 in the embodiment is the first form when it is in the storage position, and is the second form when it is in the unfolded state.

[0031] On the basis of the above embodiment, in order to drive the connecting rod 23, the embodiment further comprises a first driving rod 25 inserted at the bottom of the fixed shaft 21, a driving seat 26 is fixed at the bottom of the first driving rod 25, and a second driving rod 27 is pinned at both sides of the driving seat 26, and the other end of the second driving rod 27 is pinned to the middle part of the lower connecting rod 23.

[0032] That is, the first driving rod 25 drives the driving seat 26 to move in the embodiment, so that the two lower connecting rods 23 can be controlled to rotate through the second driving rod 27, so as to realize the change of unfolding and storing the stirring rod 24.

[0033] Further, the first driving rod 25 is circumferentially locked with the fixed shaft 21 in the embodiment, a guide groove is formed on the outside of the first driving rod 25, and a protrusion is arranged on the inner ring surface of the fixed shaft 21, so that the first driving rod 25 is circumferentially locked through the cooperation of the protrusion and the guide groove. In addition, in order to improve the reset ability of the first driving rod 25, a spring 28 is fixedly connected between the first driving rod 25 and the fixed shaft 21 in the embodiment.

[0034] It should be noted that the coupling member 4 is a rod member fixed in the inside of the shell 1 in the embodiment, the bottom of the first driving rod 25 is in contact with and rotates with the rod member, and further, in order to improve the rotation stability of the first driving rod 25, a ball bearing can be embedded at the bottom of the first driving rod 25 in the embodiment, so that the ball bearing is connected and rotated with the rod member, so as to reduce the friction force at the bottom of the first driving rod 25.

[0035] In some embodiments, the driving member 3 is a motor in the utility model, a sleeve 31 is fixedly installed on the shaft end of the motor, one end of the fixed shaft 21 is inserted into the sleeve 31, at least one positioning glass bead 29 is embedded on the outer periphery of the fixed shaft 21, and a hole is formed on the outside of the sleeve 31 and matched with the telescopic end of the positioning glass bead 29. That is, the motor is detachably connected between the sleeve 31 and the fixed shaft 21 in the embodiment, the motor can be cooperated with the whole stirring assembly 2 to be installed in the initial installation, and the motor can be easily disassembled and taken out from the inside of the shell 1. In addition, the fixed shaft 21 and the sleeve 31 are connected by the positioning glass bead 29, so as to facilitate the disassembly of the fixed shaft 21.

[0036] Preferably, the top of the shell 1 is provided with a flange interface 12, and the motor is mounted on the flange interface 12 through fasteners, which are preferably bolts in the embodiment, and the bottom of the motor should also have a flange, and the stirring assembly 2 enters the shell 1 along the flange interface 12.

[0037] During connection, the motor cooperates with the entire stirring assembly 2 to be inserted into the interior of the shell 1 along the flange interface 12, at this time the stirring assembly 2 is in the first mode, and the motor is connected and fixed with the flange interface 12 through fasteners.

[0038] During the insertion of the stirring assembly 2 into the interior of the shell 1, the first driving rod 25 abuts against the coupling 4 on the inner side of the shell 1, so as to realize the relative movement of the first driving rod 25 and the fixed shaft 21, and the driving seat 26 drives the connecting rod 23 to rotate through the driving rod 27, so as to control the stirring rod 24 to expand outwardly into the second state, and after the motor is fixed, an external power supply can be connected to control the rotation of the fixed shaft 21, so as to drive the stirring rod 24 to stir the medium in the interior of the shell 1, so that the temperature transfer is more uniform, and conversely, after the motor is disassembled, the motor cooperates with the entire stirring assembly 2 to be disassembled from the interior of the shell 1, so as to facilitate subsequent maintenance and replacement work.

[0039] In summary, the improved heat exchanger design is proposed, which adds a stirring assembly 2 outside the shell 1, which can effectively promote the flow of liquid in the shell side during work, so as to realize the uniform distribution of the temperature in the interior of the heat exchanger. In addition, the stirring assembly 2 adopts a detachable and deformable design, so that the user can easily install and disassemble through the flange interface 12, greatly improving the convenience of maintenance and maintenance. Secondly, the design also includes two U-shaped tubes 11 located at the upper and lower ends of the heat exchanger, which can be added to the medium, so as to further improve the production efficiency.

[0040] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A U-tube heat exchanger, characterized by The utility model relates to a kind of stirring device, including: The shell (1) of two U-shaped tubes (11) is installed with: Two the U-shaped tubes (11) are symmetric and staggered distribution in the inside of the shell (1), and the two ends of U-shaped tube (11) are all penetrated and extended to the outside of the shell (1); Wherein, stirring assembly (2) is also rotationally connected in the inside of the shell (1), detachably connected with driving member (3) above the shell (1), and the driving member (3) is used to drive stirring assembly (2) rotation; Stirring assembly (2) has first form and second form, and the inside of the shell (1) is fixed with coupling member (4) for driving stirring assembly (2) to be converted from first form to second form.

2. A U-tube heat exchanger according to claim 1, characterized in that: Stirring assembly (2) includes fixed shaft (21), two connecting seats (22) are fixedly installed on the outside of the fixed shaft (21), connecting rod (23) is pinned on the two sides of the connecting seat (22), wherein the two connecting rods (23) of same side are pinned with stirring rod (24) between.

3. A U-tube heat exchanger according to claim 2, characterized in that: It further includes first driving rod (25) inserted at the bottom of the fixed shaft (21), driving seat (26) is fixed at the bottom of the first driving rod (25), second driving rod (27) is pinned on the two sides of the driving seat (26), and the other end of the second driving rod (27) is pinned in the middle of the connecting rod (23) below.

4. A U-tube heat exchanger according to claim 3, characterized in that: The first driving rod (25) is circumferentially locked with the fixed shaft (21), and spring (28) is fixedly connected between the first driving rod (25) and the fixed shaft (21).

5. A U-tube heat exchanger according to claim 3, wherein: The coupling member (4) is a rod member fixed in the inside of the shell (1), and the bottom of the first driving rod (25) is in contact with the rod member and rotates.

6. A U-tube heat exchanger according to claim 2, wherein: The driving member (3) is a motor, sleeve (31) is fixedly installed on the shaft end of the motor, one end of the fixed shaft (21) is inserted into the sleeve (31), wherein at least one positioning glass bead (29) is embedded on the outer periphery of the fixed shaft (21), and the outside of the sleeve (31) is provided with a hole matched with the telescopic end of the positioning glass bead (29).

7. A U-tube heat exchanger according to claim 6, characterized in that: The top of the shell (1) is provided with flange interface (12), and the motor is installed on the flange interface (12) by fastener, wherein the stirring assembly (2) enters the shell (1) along the flange interface (12).

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