A heat exchanger

Abstract

This invention belongs to the field of chemical heat exchange technology, specifically relating to a heat exchanger. The threaded copper tubes of the tube body adopt a spiral auger structure, which facilitates heat conduction between the tube-side fluid and the shell-side fluid. Eccentric blocks are provided on both sides of the tube body. The motor drives the movement of the eccentric blocks through a transmission mechanism, and the tube body installed on the eccentric blocks also moves accordingly. When the speeds of the motors on both sides are the same, the tube body makes regular movement within the shell, enhancing the heat transfer efficiency of the fluids on both sides. The shell and the support frame are connected by springs. When the speeds of the motors on both sides are different, the tube body makes irregular movement, causing the shell to vibrate. At this time, the condensate generated inside the shell will fall more quickly, preventing it from adhering to the shell and facilitating its discharge from the drain outlet, thus increasing the stability of the heat exchanger.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of chemical heat exchange, and particularly relates to a heat exchanger. BACKGROUND

[0002] The heat exchanger is a process equipment for heat transfer, which is widely used in oil refining, petrochemical industry and other general chemical industry, such as cooling, condensation, heating, evaporation and waste heat recovery, and the heat exchanger also needs reasonable structure and form due to the diversity of use conditions (corrosion, temperature, pressure, medium, impurity and heat exchange capacity). The tubular heat exchanger and the shell-and-tube heat exchanger are one of the most widely used heat transfer equipment, which exchanges heat between two fluids in the following way: one fluid flows through the shell, and the other fluid flows through the heat exchange tube, and the heat exchange tube exchanges heat inside and outside, thereby realizing its function.

[0003] The heat exchanger and the internal thread copper pipe thereof disclosed in the publication No. CN109682246A have the following specific content: the uniform arrangement of the one plate on both sides of the pipe body makes the fluid flow through the pipe body, and the fluid makes chaotic movement in the pipe body, so that the fluid temperature distribution in the pipe body is uniform, and the fluid moves quickly in the pipe body, reducing the accumulation of dirt on the inner wall of the pipe body; and the internal thread copper pipe is arc-shaped, reducing the cross-sectional area of the internal thread copper pipe, increasing the flow velocity of the fluid in the pipe body under the condition that the fluid flow into the pipe body is unchanged, so that the fluid after temperature change in the pipe body can quickly flow out from the pipe flow outlet, and the new fluid enters the pipe body from the pipe flow inlet, increasing the temperature change speed of the shell flow, and improving the heat exchange efficiency of the shell flow and the pipe flow.

[0004] The heat exchanger in the prior art has low heat exchange efficiency, uneven fluid temperature distribution in the pipe, and low heat exchange area of the shell flow and the pipe flow. When the fluid is gas, due to the temperature difference between the pipe and the shell, there is moisture in the fluid, and condensate water is generated in the heat exchange process, which accumulates in the shell, and when the condensate water reaches a certain amount, it will cause corrosion of the heat exchanger and affect the heat exchange. SUMMARY

[0005] The main purpose of the present application is to provide a heat exchanger to solve the problem of low heat exchange efficiency of the heat exchanger.

[0006] The main purpose of the present application is to provide a heat exchanger to solve the problem of low heat exchange efficiency of the heat exchanger.

[0007] In order to solve the above problems, the technical scheme adopted by the present application is as follows: a heat exchanger comprising a tube body and a shell, characterized in that: the tube body is composed of a plurality of threaded copper pipes, the tube body is provided with eccentric plates on both sides, the eccentric plates are fixedly connected with elastic rubber plates, the shell is provided with a motor and a gear transmission mechanism on both sides, the motor drives the gear transmission mechanism to move, thereby driving the movement of the eccentric plates.

[0008] Preferably, the eccentric plate is fixedly connected with a first elastic rubber plate, the first elastic rubber plate is fixedly connected with a shell partition plate, and the eccentric plate, the first elastic rubber plate and the shell partition plate divide the shell into a first cavity, a second cavity and a third cavity.

[0009] Preferably, the eccentric plate is composed of a first eccentric wheel, a second eccentric wheel and a connecting plate, the connecting plate connects the first eccentric wheel and the second eccentric wheel, a plurality of round holes 304 are circumferentially arranged on the first eccentric wheel and the second eccentric wheel, and the round holes are mounting holes of the threaded copper pipes.

[0010] Preferably, the shell is provided with a gear transmission mechanism on the outside, the transmission mechanism is provided with a motor on the outside, the gear transmission mechanism comprises a first gear, a second gear and a third gear, the motor drives the first gear to rotate, the first gear transmits power to the third gear through the second gear, and the first gear and the third gear have the same rotating speed and movement direction.

[0011] Preferably, the first gear and the third gear are eccentrically installed with the first eccentric wheel and the second eccentric wheel through transmission shafts respectively.

[0012] Preferably, a sealing partition plate is installed in the first cavity, a second elastic rubber plate is arranged between the sealing partition plate and the shell, the second elastic rubber plate is fixedly connected with the eccentric plate, and the sealing partition plate, the second elastic rubber plate, the eccentric plate and the shell divide the first cavity into a tube-pass fluid inlet cavity and a tube-pass fluid outlet cavity.

[0013] Preferably, the shell is provided with a tube-pass fluid inlet in the tube-pass fluid inlet cavity portion and a tube-pass fluid outlet in the tube-pass fluid outlet cavity, and the second cavity is provided with a shell-pass fluid inlet and a shell-pass fluid outlet.

[0014] Preferably, the shell is provided with a liquid discharge port at the bottom position of the second cavity.

[0015] Preferably, the shell is provided with a supporting plate below, and the shell and the supporting plate are fixedly connected by using springs.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The heat exchanger of the present application, through the motor driving eccentric wheel rotation, the threaded copper pipe installed in the eccentric wheel moves with the eccentric wheel, when the rotating speed of the two sides of the motor is the same, the threaded copper pipe does the circular motion in the shell, enhances the heat exchange effect of the tube fluid and the shell fluid, the threaded copper pipe adopts the spiral auger structure to further increase the heat exchange effect.

[0018] 2. The heat exchanger of the present application, when the rotating speed of the two sides of the motor is different, the tube body does the irregular motion in the shell, since the shell and the support plate are connected by the spring, the shell will vibrate, the condensate water on the tube body and in the shell is accelerated to fall down, and finally flows out from the drain port. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the overall structure view of the present application;

[0020] Fig. 2 It is the structure view of the eccentric plate of the present application;

[0021] Fig. 3 It is the transmission structure view of the present application;

[0022] Fig. 4 It is the structure view of the threaded copper pipe of the present application.

[0023] In the figure: shell 1, shell partition plate 101, shell fluid inlet 102, tube fluid inlet 103, tube fluid outlet 104, shell fluid outlet 105, drain port 106, tube body 2, threaded copper pipe 201, eccentric plate 3, first eccentric wheel 301, connecting plate 302, second eccentric wheel 303, round hole 304, bearing 4, transmission shaft 5, sealing partition plate 6, second elastic rubber plate 7, first elastic rubber plate 8, transmission mechanism 9, first gear 901, second gear 902, third gear 903, third cavity 10, first cavity 11, tube fluid inlet cavity 1101, tube fluid outlet cavity 1102, second cavity 12, spring 13, support plate 14, motor 15. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] As Figs. 1 to 4As shown, a heat exchanger, comprising a tube body 2 and a shell 1, the tube body 2 is composed of a plurality of threaded copper pipes 201, the tube body 2 is provided with eccentric plates 3 on both sides, the eccentric plates 3 are fixedly connected with first elastic rubber plates 8, the shell 1 is provided with a motor 15 and a gear transmission mechanism 9 on both sides, the motor 15 drives the gear transmission mechanism 9 to move, thereby driving the eccentric plates 3 to move.

[0026] Specifically, the eccentric plates 3 are fixedly connected with the first elastic rubber plates 8, the first elastic rubber plates 8 are fixedly connected with the shell partition plates 101, the eccentric plates 3, the first elastic rubber plates 8 and the shell partition plates 101 divide the shell 1 into a first cavity 11, a second cavity 12 and a third cavity 10, by adopting the above technical scheme, a sealing mechanism is formed, the tube fluid will enter from the first cavity 11, heat exchange with the shell fluid in the second cavity 12, and then enter the third cavity 10 to change the movement direction, and finally discharged from the first cavity 11.

[0027] Specifically, the eccentric plates 3 are composed of first eccentric wheels 301, second eccentric wheels 303 and connecting plates 302, the connecting plates 302 connect the first eccentric wheels 301 and the second eccentric wheels 303, a plurality of round holes 304 are arranged on the circumferences of the first eccentric wheels 301 and the second eccentric wheels 303, the round holes 304 are mounting holes of the threaded copper pipes 201, by adopting the above technical scheme, the eccentric plates 3 can drive the movement of the tube body 2.

[0028] Specifically, the shell 1 is provided with the gear transmission mechanism 9 on the outside, the transmission mechanism 9 is provided with the motor 15 on the outside, the gear transmission mechanism 9 comprises first gears 901, second gears 902 and third gears 903, the motor 15 drives the first gears 901 to rotate, the first gears 901 transmit power to the third gears 903 through the second gears 902, the first gears 901 and the third gears 903 have the same rotating speed and movement direction, by adopting the above technical scheme, the power input by the motor 15 is divided into two power outputs.

[0029] Specifically, the first gears 901 and the third gears 903 are eccentrically installed with the first eccentric wheels 301 and the second eccentric wheels 303 through the transmission shafts 5, by adopting the above technical scheme, the motor 15 transmits power to the first gears 901 and the third gears 903, the first gears 901 and the third gears 903 drive the rotation of the first eccentric wheels 301 and the second eccentric wheels 303 respectively.

[0030] Specifically, the first cavity 11 is provided with a sealing partition plate 6, and the sealing partition plate 6 is provided with a second elastic rubber plate 7 fixedly connected with the eccentric plate 3, and the sealing partition plate 6, the second elastic rubber plate 7, the eccentric plate 3 and the shell 1 divide the first cavity 11 into a tube fluid inlet 103 cavity 1101 and a tube fluid outlet 104 cavity 1102. By adopting the above technical scheme, the first cavity 11 is divided into two parts, so that the tube fluid can enter and discharge, and mixing is avoided.

[0031] Specifically, the shell 1 is provided with the tube fluid inlet 103 in the tube fluid inlet cavity 1101, and the tube fluid outlet 104 in the tube fluid outlet cavity 1102, and the second cavity 12 is provided with the shell fluid inlet 102 and the shell fluid outlet 105. By adopting the above technical scheme, the shell fluid and the tube fluid can enter and discharge.

[0032] Specifically, the shell 1 is provided with a drain 106 at the bottom of the second cavity 12. By adopting the above technical scheme, the accumulated liquid can be discharged.

[0033] Specifically, the shell 1 is provided with a support plate 14, and the shell 1 and the support plate 14 are fixedly connected by a spring 13. By adopting the above technical scheme, the shell 1 can vibrate due to different motor speeds at two ends, so that the condensed water can fall.

[0034] Working principle: in use, the tube fluid enters from the tube fluid inlet 103, the shell fluid enters from the shell fluid inlet 102, the eccentric plate 3, the second elastic rubber plate 7 and the tube body 2 partition plate divide the shell 1 into the first cavity 11, the second cavity 12 and the third cavity 10, the first cavity 11 is divided into the tube fluid inlet cavity 1101 and the tube fluid outlet cavity 1102 by the sealing partition plate 6 and the second elastic rubber plate 7, the tube fluid enters the tube fluid inlet cavity 1101 from the tube fluid inlet 103, and then enters the threaded copper pipe 201, the tube fluid and the shell fluid exchange heat in the second cavity 12, and the tube fluid and the shell fluid are discharged from the shell fluid outlet 105 and the tube fluid outlet 104 respectively after heat exchange is completed.

[0035] At the same time, the motor 15 drives the eccentric plate 3 to move through the gear transmission mechanism 9, and then drives the tube body 2 to move, when the movement speeds of the two motors 15 are consistent, the tube body 2 moves regularly in the shell 1, and the heat exchange effect of the tube fluid and the shell fluid is enhanced, when the rotation speeds of the two motors 15 are different, the tube body 2 moves irregularly, the shell 1 shakes due to the connection of the shell 1 and the support plate 14 by the spring 13, the condensed water falls down quickly, and finally is discharged from the drain 106, so that the heat exchanger is prevented from being damaged due to the accumulation of the condensed water.

[0036] The above shows and describes the basic principles and main features of the present application and the advantages of the present application, and those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger comprising a tube (2) and a shell (1), characterized in that: The pipe body (2) is composed of a plurality of threaded copper pipes (201), both sides of the pipe body (2) are provided with eccentric plates (3), the eccentric plates (3) are fixedly connected with first elastic rubber plates (8), both sides of the shell (1) are provided with motors (15) and gear transmission mechanisms (9), the motor (15) drives the gear transmission mechanism (9) to move, thereby driving the movement of the eccentric plate (3). The eccentric plate (3) is fixedly connected with the first elastic rubber plate (8), the first elastic rubber plate (8) is fixedly connected with a shell partition plate (101), the eccentric plate (3), the first elastic rubber plate (8) and the shell partition plate (101) are partitioned into a first cavity (11), a second cavity (12) and a third cavity (10). The shell (1) is provided with a gear transmission mechanism (9) on the outside, the transmission mechanism (9) is provided with a motor (15) on the outside, the gear transmission mechanism (9) comprises a first gear (901), a second gear (902) and a third gear (903), the motor (15) drives the first gear (901) to rotate, the first gear (901) transmits power to the third gear (903) through the second gear (902), and the first gear (901) and the third gear (903) have the same rotating speed and movement direction. The first cavity (11) is provided with a sealing partition plate (6), a second elastic rubber plate (7) is arranged between the sealing partition plate (6) and the shell (1), the second elastic rubber plate (7) is fixedly connected with the eccentric plate (3), and the sealing partition plate (6), the second elastic rubber plate (7), the eccentric plate (3) and the shell (1) divide the first cavity (11) into a pipe-pass fluid inlet cavity (1101) and a pipe-pass fluid outlet cavity (1102). A drain port (106) is arranged at the bottom of the second cavity (12) of the shell (1). The shell (1) is provided with a supporting plate (14) below, and the shell (1) and the supporting plate (14) are fixedly connected by a spring (13).

2. A heat exchanger according to claim 1, characterised in that: The eccentric plate (3) is composed of a first eccentric wheel (301), a second eccentric wheel (303) and a connecting plate (302), the connecting plate (302) connects the first eccentric wheel (301) and the second eccentric wheel (303) left and right, a plurality of round holes (304) are arranged on the circumference of the first eccentric wheel (301) and the second eccentric wheel (303), and the round holes (304) are threaded copper pipe (201) mounting holes.

3. A heat exchanger according to claim 2, wherein: The first gear (901) and the third gear (903) are eccentrically mounted with the first eccentric wheel (301) and the second eccentric wheel (303) through a transmission shaft (5) respectively.

4. A heat exchanger according to claim 1, wherein: The shell (1) is provided with a pipe-pass fluid inlet (103) at the pipe-pass fluid inlet cavity (1101) portion, a pipe-pass fluid outlet (104) at the pipe-pass fluid outlet cavity (1102), a shell-pass fluid inlet (102) and a shell-pass fluid outlet (105) at the second cavity (12).

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