Teflon shell-and-tube heat exchanger capable of automatically changing speed

Abstract

The utility model discloses an automatic speed changing teflon shell-and-tube heat exchanger which comprises a shell, the upper end and the lower end of the outer wall of the shell are fixedly communicated with a water injection pipe and a water drainage pipe respectively, a transmission adjusting device is fixedly installed on the outer wall of the shell, a controller is fixedly connected to the outer wall of the shell, and a flow speed control assembly is movably installed in the shell. Through the mutual synergistic effect of the controller and the transmission adjusting device, the temperature sensor is used for real-time monitoring to control the servo motor to rotate forwards and backwards, so that the flow speed control assembly is controlled to adjust in real time, workers do not need to watch, automatic hosting processing of equipment is achieved, and the working efficiency is improved. The practicability and the automation degree of the device are improved, rotating adjustment is conducted through an adjusting plate and a flow guide plate, so that synchronous and same-scale control can be conducted on the adjustment size of the corresponding holes, the space utilization efficiency is also improved, and automatic rotating adjustment is conducted through a transmission adjusting device as a whole; and the practicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an automatic speed-changing Teflon shell and tube heat exchanger. Background Art

[0002] The shell and tube heat exchanger is used to transfer heat from one fluid to another. Patent publication number CN216049323U discloses a Teflon shell and tube heat exchanger. The Teflon shell and tube heat exchanger can not only control the flow rate of the fluid entering the heat exchanger according to the use requirements, conveniently controlling the heat exchange effect, but also can perform heat exchange twice to improve the heat exchange efficiency of the heat exchanger.

[0003] However, in actual use, the device still has great limitations. First, the flow rate control of the fluid requires manual control by the staff. In this way, the staff must always supervise next to the heat exchanger, or it is impossible to always entrust the processing, which consumes unnecessary manpower costs. Secondly, when the heat exchanger is controlling the flow rate, because both the guide plate and the adjustment plate are circular plate structures, when the screw is used for lateral control and adjustment, it will inevitably lead to inconsistent adjustment sizes of the holes between the two plates. If the hole positions are arranged in a square shape to ensure consistency, the number of holes will be limited, the space utilization efficiency will be reduced, and the limitations of the device will also increase. Utility Model Content

[0004] The utility model aims to provide a Teflon shell and tube heat exchanger with automatic speed change to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic speed-changing Teflon shell-and-tube heat exchanger, comprising a shell, the upper and lower ends of the outer wall of the shell are respectively fixedly connected with a water injection pipe and a drainage pipe, the outer wall of the shell is fixedly installed with a transmission adjustment device, the outer wall of the shell is fixedly connected with a controller, a flow rate control component is movably installed inside the shell, the upper and lower ends of the controller are electrically connected with wires, and one end of the wire is electrically connected with a temperature sensor;

[0006] The transmission adjustment device includes a servo motor, the output shaft of the servo motor is fixedly sleeved with a driving bevel gear, the side of the driving bevel gear is meshed with a transmission bevel gear, one end of the transmission bevel gear is fixedly installed with a worm, both left and right ends of the worm are rotatably installed with limit rings, the middle part of the worm is located between the two limit rings and a sealing box is rotatably installed, and the surface of the worm is meshed with a worm wheel.

[0007] Preferably, the upper and lower ends of the worm wheel are integrally formed with protrusions, and the worm wheel is rotatably mounted inside the housing via the protrusions.

[0008] Preferably, the side surface of the sealing box is fixedly mounted on the outer wall of the shell, and one end of the limiting ring is fixedly mounted on the outer wall of the shell.

[0009] Preferably, the servo motor is electrically connected to the controller via another wire.

[0010] Preferably, the temperature sensor is fixedly installed inside the bottom outlet of the shell.

[0011] Preferably, the flow rate control assembly includes a guide plate, a block is integrally formed on the side of the guide plate, a limiting column is fixedly installed on the top of the guide plate, an adjustment plate is rotatably installed on the surface of the limiting column, a retaining ring is fixedly installed on the top of the adjustment plate, a gear ring is integrally formed on one side of the retaining ring, and the surfaces of the adjustment plate and the guide plate are provided with flow holes of the same number and size.

[0012] Preferably, an annular groove is provided inside the housing, the size of the annular groove matches the size of the snap ring, and the worm wheel and the gear ring are meshed with each other.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This device uses the controller and the transmission adjustment device to work together, and uses the temperature sensor for real-time monitoring to control the servo motor to rotate forward and reverse, so as to achieve real-time control of the flow rate control component for adjustment. It does not require staff to supervise, and realizes automatic hosting of the equipment, which improves the practicality and automation of the device;

[0015] 2. The adjustment plate and the guide plate are used for rotation adjustment, so that the corresponding hole adjustment sizes can be controlled synchronously and on the same scale, which also improves the space utilization efficiency. The transmission adjustment device is used as a whole for automatic rotation adjustment, which further improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the transmission adjustment device of the utility model;

[0019] Figure 4 This is a schematic diagram of the controller structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the flow rate control component of the utility model.

[0021] In the figure: 1. shell; 2. water injection pipe; 3. drainage pipe; 4. transmission adjustment device; 5. controller; 6. flow rate control component; 401. servo motor; 402. driving bevel gear; 403. transmission bevel gear; 404. worm; 405. limit ring; 406. worm wheel; 407. sealing box; 501. temperature sensor; 601. guide plate; 602. limit column; 603. block; 604. adjustment plate; 605. retaining ring; 606. gear ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example 1

[0024] like Figures 1 to 5 As shown, an automatic speed-changing Teflon shell and tube heat exchanger in the embodiment of the first aspect of the utility model comprises a shell 1, the upper and lower ends of the outer wall of the shell 1 are respectively fixedly connected with a water injection pipe 2 and a drainage pipe 3, the outer wall of the shell 1 is fixedly installed with a transmission adjustment device 4, the outer wall of the shell 1 is fixedly connected with a controller 5, the interior of the shell 1 is movably installed with a flow rate control component 6, the upper and lower ends of the controller 5 are electrically connected with wires, and one end of the wire is electrically connected with a temperature sensor 501;

[0025] The transmission adjustment device 4 includes a servo motor 401, the output shaft of the servo motor 401 is fixedly sleeved with a driving bevel gear 402, the side of the driving bevel gear 402 is meshed with a transmission bevel gear 403, one end of the transmission bevel gear 403 is fixedly installed with a worm 404, both left and right ends of the worm 404 are rotatably installed with limit rings 405, the middle part of the worm 404 is located between the two limit rings 405 and a sealing box 407 is rotatably installed, a worm wheel 406 is meshed and installed on the surface of the worm 404, the upper and lower ends of the worm wheel 406 are integrally formed with protrusions, the worm wheel 406 is rotatably installed inside the housing 1 through the protrusions, the side of the sealing box 407 is fixedly installed on the outer wall of the housing 1, one end of the limit ring 405 is fixedly installed on the outer wall of the housing 1, the servo motor 401 is electrically connected to the controller 5 through another wire, and the temperature sensor 501 is fixedly installed inside the bottom outlet of the housing 1.

[0026] In the above embodiment, it should be noted that the annular groove opened inside the shell 1 and the installation groove required for the rotation of the worm wheel 406 are connected to each other. Therefore, the installation of the sealing box 407 is to prevent liquid leakage from occurring at the connection point. Therefore, the corresponding connection point where the worm 404 and the sealing box 407 rotate with each other is also sealed accordingly to achieve the purpose of leakage prevention. Secondly, the servo motor 401 and the controller 5 are both installed on the outside of the shell 1 to ensure stability during transmission.

[0027] The technical effect achieved by the above embodiment is as follows: the servo motor 401 can rotate forward and reverse, thereby realizing the position adjustment of the flow rate control component 6 as a whole at a certain angle; the fixed connection between the limit ring 405 and the shell 1 can provide the transmission bevel gear 403 with a stable rotation position without other position deviations, thereby ensuring the transmission stability of the two bevel gears; the temperature sensor 501 is set at the bottom end of the shell 1 to monitor the liquid temperature at its outlet position in real time, thereby determining whether it is within a predetermined temperature range.

[0028] Example 2

[0029] like Figure 5 As shown, an automatic speed-changing Teflon shell and tube heat exchanger includes all the contents of Example 1. In addition, the flow rate control component 6 includes a guide plate 601, and a block 603 is integrally formed on the side of the guide plate 601. A limiting column 602 is fixedly installed on the top of the guide plate 601, and an adjustment plate 604 is rotatably installed on the surface of the limiting column 602. A retaining ring 605 is fixedly installed on the top of the adjustment plate 604, and a gear ring 606 is integrally formed on one side of the retaining ring 605. The surfaces of the adjustment plate 604 and the guide plate 601 are both provided with flow holes of the same number and size, and an annular groove is provided inside the shell 1. The size of the annular groove is adapted to the size of the retaining ring 605, and the worm gear 406 and the gear ring 606 are meshed with each other.

[0030] The technical effect achieved by the above embodiment is: the ring groove and the retaining ring 605 are adapted to each other to ensure that the adjustment plate 604 rotates in place as a whole, and all its pressure is not on the surface of the guide plate 601, so that there is a certain gap between the upper and lower parts of the hole to prevent friction and scratches. The retaining block 603 can be used to fix the guide plate 601 inside the shell 1 to ensure that its position does not change, and the relative rotation of the adjustment plate 604 is realized to achieve the adjustment of the hole size.

[0031] Working principle: First, set the target temperature range of the temperature sensor 501. When the liquid flowing through the surface is lower than or higher than the target threshold, the signal is transmitted to the inside of the controller 5. The controller 5 transmits the signal and then controls the servo motor 401 to drive the active bevel gear 402 to rotate forward or reverse, and cooperates with the transmission bevel gear 403 to drive the worm 404 to rotate accordingly, thereby driving the worm wheel 406 to rotate through the worm 404. While the left side of the worm wheel 406 is driven, the right side of the worm wheel 406 will also drive the adjustment plate 604 to rotate as a whole through the gear ring 606. After the adjustment plate 604 rotates, the holes on its surface and the holes on the surface of the guide plate 601 are relatively offset, and the relative overlapping area of ​​the holes between the two plates changes, thereby changing the corresponding flow rate to achieve automatic control.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An automatic speed-changing Teflon shell and tube heat exchanger, characterized in that: It comprises a shell (1), wherein the upper and lower ends of the outer wall of the shell (1) are respectively fixedly connected to a water injection pipe (2) and a drainage pipe (3), the outer wall of the shell (1) is fixedly installed with a transmission adjustment device (4), the outer wall of the shell (1) is fixedly connected to a controller (5), the interior of the shell (1) is movably installed with a flow rate control component (6), the upper and lower ends of the controller (5) are electrically connected to wires, and one end of the wire is electrically connected to a temperature sensor (501); The transmission adjustment device (4) comprises a servo motor (401), the output shaft of the servo motor (401) is fixedly sleeved with a driving bevel gear (402), the side of the driving bevel gear (402) is meshed with a transmission bevel gear (403), one end of the transmission bevel gear (403) is fixedly mounted with a worm (404), both left and right ends of the worm (404) are rotatably mounted with limit rings (405), the middle part of the worm (404) is located between the two limit rings (405) and is rotatably mounted with a sealing box (407), and the surface of the worm (404) is meshed with a worm wheel (406).

2. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: The upper and lower ends of the worm wheel (406) are integrally formed with protrusions, and the worm wheel (406) is rotatably mounted inside the housing (1) via the protrusions.

3. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: The side surface of the sealing box (407) is fixedly mounted on the outer wall of the shell (1), and one end of the limiting ring (405) is fixedly mounted on the outer wall of the shell (1).

4. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: The servo motor (401) is electrically connected to the controller (5) via another wire.

5. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: The temperature sensor (501) is fixedly mounted inside the bottom outlet of the shell (1).

6. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: The flow rate control assembly (6) comprises a guide plate (601), a block (603) is integrally formed on the side of the guide plate (601), a limiting column (602) is fixedly mounted on the top of the guide plate (601), an adjustment plate (604) is rotatably mounted on the surface of the limiting column (602), a retaining ring (605) is fixedly mounted on the top of the adjustment plate (604), a toothed ring (606) is integrally formed on one side of the retaining ring (605), and the surfaces of the adjustment plate (604) and the guide plate (601) are both provided with flow holes of the same number and size.

7. The automatic speed-changing Teflon shell and tube heat exchanger according to claim 1, characterized in that: An annular groove is provided inside the housing (1), the size of the annular groove being adapted to the size of the snap ring (605), and the worm wheel (406) and the gear ring (606) are meshed with each other.

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