Medium constant-temperature circular reaction device

Abstract

The utility model discloses a medium constant-temperature circular reaction device, and relates to the technical field of reaction devices. The device comprises an outer reaction tank body and an inner reaction tank body arranged in the outer reaction tank body, a liquid inlet and a liquid outlet are formed in the side wall of the outer reaction tank body, a second motor is arranged at the bottom of the outer reaction tank body, and a second driving shaft is arranged at the output end of the second motor. And the second driving shaft is connected with a stirring shaft extending into the inner reaction tank body. According to the device, through the arrangement of a limiting seat, a second motor, a driven stirring end and a stirring shaft, the stirring position of the medium constant-temperature circular reaction device is not limited to the inner bottom of the outer reaction tank body; a second motor is arranged to drive a second driving shaft to rotate, a stirring shaft is driven through rotation to realize mechanical rotary stirring, and when the second driving shaft rotates, a driven stirring end is driven through a connecting belt to perform driven, so that one motor can drive two stirring positions to perform stirring, and the stirring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction devices, in particular to a medium constant temperature circulation reaction device. Background Art

[0002] A constant temperature reactor is an instrument that can maintain a certain temperature to keep the temperature of the reaction system stable. Its principle is to adjust the temperature inside the reactor through an external heating or cooling device, and monitor the temperature change in real time through a sensor, automatically control the power and operating time of the heating or cooling device, so that the reaction system can maintain a constant temperature state.

[0003] The existing medium constant temperature reaction device is mainly a constant temperature water bath. The constant temperature water bath structure stirs the heat transfer medium outside the inner reaction container through a stirring component at the bottom of the tank. Since this type of stirring component is usually located at the bottom, the stirring range is limited. For an inner reaction container with a longer volume, the internal medium cannot be fully stirred, which easily leads to a temperature difference inside and affects the reaction process. Therefore, it does not meet the existing needs, and a medium constant temperature circulation reaction device is proposed. Utility Model Content

[0004] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a medium constant temperature circulation reaction device with a reduced internal temperature difference.

[0005] Technical solution: The medium constant temperature circulation reaction device of the utility model comprises an outer reaction tank body and an inner reaction tank body arranged inside the outer reaction tank body. A liquid inlet and a liquid outlet are respectively installed on the side walls of the outer reaction tank body. A second motor is provided at the bottom of the outer reaction tank body. A second drive shaft is provided at the output end of the second motor. A stirring shaft is connected to the second drive shaft and extends into the inner reaction tank body.

[0006] Furthermore, a connecting belt is installed on the outer wall of the second driving shaft of the device, and a driven stirring end is installed at one end of the connecting belt away from the second driving shaft, and the driven stirring end is connected to a stirring shaft extending into the inner reaction tank body.

[0007] Furthermore, temperature sensors are provided inside the outer reaction tank body and the inner reaction tank body of the device.

[0008] Furthermore, a plurality of assembly grooves arranged at intervals in a vertical direction are arranged on the inner side wall of the outer reaction tank of the device, and heaters and cooling pipes are installed in the assembly grooves.

[0009] Furthermore, the device also includes a bracket, a base located at the bottom of the bracket, a top plate located at the top of the bracket, and two upper and lower positioning frames are installed on the outer wall of the bracket. The outer reaction tank body is arranged at the front end of the positioning frame.

[0010] Furthermore, a limit seat is provided at the bottom of the outer reaction tank body of the device, and the second motor is located on one side inside the limit seat; a limit frame is provided above the limit seat, and a connecting frame is installed on the limit frame and the end of the limit seat close to the positioning frame, and a limit groove is opened on the outer wall of the outer reaction tank body close to the upper end, and the limit frame is installed in the limit groove.

[0011] Furthermore, a first motor is provided on the top plate of the device, a first drive shaft is provided at the output end of the first motor, the lower end of the first drive shaft extends into the inner reaction tank body, and a stirring blade is installed at the lowermost end of the first drive shaft.

[0012] Furthermore, a screw rod is provided on the side wall of the positioning frame of the device, a rotating handle is provided at the end of the screw rod, and the rotating handle is assembled and installed through the screw rod and the screw hole of the positioning frame.

[0013] Furthermore, the device also includes a PLC controller which receives the value feedback of the temperature sensor and regulates the switch of the heater.

[0014] Beneficial effect: Compared with the prior art, the advantages of the utility model are as follows: the device, through the setting of the limit seat, the second motor, the driven stirring end, and the stirring shaft, makes the stirring place of the medium constant temperature circulation reaction device not limited to the inner bottom of the outer reaction tank body. For some inner reaction tank bodies with longer volumes, the stirring shafts located on both sides are used to effectively stir the medium around the long inner reaction tank body. Through stirring, the temperature difference of the internal medium is made smaller, avoiding the problem of temperature difference between the upper and lower media caused by the small stirring range at the bottom; the second motor is used to drive the second drive shaft to rotate, and the mechanical rotation stirring is realized by driving the stirring shaft through the rotation. When the second drive shaft rotates, the driven stirring end is driven by the connecting belt, so that two stirring places can be driven to stir by one motor, thereby improving stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a side view of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the inner reaction tank of the utility model;

[0018] Figure 4 It is a partial enlarged view of point A of the utility model;

[0019] In the figure: 1. bracket; 2. base; 3. positioning frame; 4. handle; 5. screw; 6. connecting frame; 7. limit seat; 8. limit frame; 9. outer reaction tank body; 10. top plate; 11. controller; 12. first motor; 13. first drive shaft; 14. stirring blade; 15. inner reaction tank body; 16. limit groove; 17. assembly groove; 18. drain port; 19. liquid inlet; 20. second motor; 21. second drive shaft; 22. connecting belt; 23. driven stirring end; 24. stirring shaft; 25. liquid injection port; 26. cover body; 27. temperature sensor. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 4 As shown, the medium constant temperature circulation reaction device of the utility model comprises: a bracket 1, a base 2 is provided at the bottom of the bracket 1, two upper and lower positioning frames 3 are installed on the outer wall of the bracket 1, an outer reaction tank body 9 is installed at the front end of the positioning frame 3, and an inner reaction tank body 15 is provided inside the outer reaction tank body 9; and further comprises:

[0022] A limit seat 7 is installed at the bottom of the outer reaction tank body 9, a second motor 20 is installed on one side of the inner part of the limit seat 7, a second drive shaft 21 is installed at the output end of the second motor 20, a connecting belt 22 is installed on the outer wall of the second drive shaft 21, a driven stirring end 23 is installed at the end of the connecting belt 22 away from the second drive shaft 21, and a stirring shaft 24 is installed at the upper ends of the second drive shaft 21 and the driven stirring end 23 through a coupling, and the stirring shaft 24 is located on both sides of the inner reaction tank body 15; through the arrangement of the limit seat 7, the second motor 20, the driven stirring end 23, and the stirring shaft 24, the stirring place of the medium constant temperature circulation reaction device is not limited to the outer reaction tank The inner bottom of the body 9, for some of the longer inner reaction tanks 15, adopts stirring shafts 24 located on both sides, which can effectively stir the medium around the long inner reaction tank 15. Through stirring, the temperature difference of the internal medium is smaller, avoiding the problem of temperature difference between the upper and lower media caused by the smaller stirring range at the bottom; adopts the setting of the second motor 20 to drive the second drive shaft 21 to rotate, and the mechanical rotary stirring is realized by driving the stirring shaft 24 through the rotation. When the second drive shaft 21 rotates, the driven stirring end 23 is driven by the connecting belt 22, so that two stirring places can be driven by one motor to stir, and stirring efficiency is improved. And the connection between the stirring shaft 24 and the inner bottom of the outer reaction tank 9 can be sealed by a sealing ring known in the art.

[0023] like Figure 1 and Figure 3As shown, a limit frame 8 is provided above the limit seat 7, and a connecting frame 6 is installed on the limit frame 8 and the end of the limit seat 7 close to the positioning frame 3. A limit groove 16 is provided on the outer wall of the outer reaction tank body 9 close to the upper end, and the limit frame 8 is installed in the limit groove 16; the limit frame 8 is used to limit the limit groove 16 of the outer reaction tank body 9, so that the outer reaction tank body 9 can be supported and reinforced by the limit frame 8 on the supporting basis of the bottom limit seat 7, so as to improve stability and firmness; the connecting frame 6, the limit frame 8 and the limit seat 7 are detachably arranged and can be combined by means of threads. The limit frame 8 is a left-right assembled structure, and the limit frame 8 is composed of two left and right limit blocks, which can be disassembled and separated.

[0024] A top plate 10 is provided on the top of the bracket 1, and a controller 11 is provided on the outer wall of the top plate 10. A temperature sensor 27 is provided inside the outer reaction tank body 9 and the inner reaction tank body 15, and the output end of the temperature sensor 27 is wirelessly connected to the input end of the controller 11. A plurality of vertically spaced assembly grooves 17 are provided on the inner side wall of the outer reaction tank body 9, and a heater and a cooling pipe are installed in the assembly groove 17. The vertically spaced distribution structure can make the heating point and the cooling point cover the outer reaction tank body 9, so that the heating and cooling efficiency is faster and the temperature difference can be effectively reduced. The temperature sensor 27 is used to detect the temperature change in the outer reaction tank body 9 and the inner reaction tank body 15, and feedback the signal to the controller 11, so that the controller 11 knows the temperature change, and then compares the obtained temperature change with the temperature range set at the controller 11. When the temperature is higher than the set range, the heater is controlled to stop heating, and the temperature is naturally cooled, or cooled through the cooling pipe. When the temperature is lower than the set range, the internal temperature is increased by the heater to keep the interior in a constant temperature state;

[0025] A first motor 12 is installed at the front end of the controller 11, and a first drive shaft 13 is provided at the output end of the first motor 12. The lower end of the first drive shaft 13 extends into the inner reaction tank body 15, and a stirring blade 14 is installed at the lower end of the first drive shaft 13; the first motor 12 drives the stirring blade 14 to rotate through the first drive shaft 13, and the medium in the inner reaction tank body 15 is stirred and reacted through the rotation.

[0026] A cover body 26 is installed at the upper end of the outer reaction tank body 9, and a plurality of liquid injection ports 25 are arranged on the outer wall of the cover body 26. A liquid inlet 19 and a liquid discharge port 18 are respectively installed on the side walls of the outer reaction tank body 9; the liquid inlet 19 and the liquid discharge port 18 are used for liquid inlet and outlet operations of the medium in the outer reaction tank body 9; the cover body 26 facilitates the user to take out the medium in the inner reaction tank body 15, and the liquid injection port 25 is connected to a pipe fitting for conveying the medium, and a pump body (not shown in the figure) is used as a power to perform internal and external liquid injection operations.

[0027] A screw rod 5 is provided on the side wall of the positioning frame 3, and a rotating handle 4 is provided at the end of the screw rod 5, and the rotating handle 4 is installed by combining the screw rod 5 with the screw hole of the positioning frame 3; the rotating handle 4 is used to adjust the position of the screw rod 5, and the screw rod 5 is screwed into the screw hole of the positioning frame 3 through the rotating handle 4, so that the screw rod 5 is against the bracket 1, and the positioning frame 3 is firmly fixed at this height position, thereby improving stability and firmness.

[0028] Working principle: When in use, the reaction medium is injected into the inner reaction tank body 15, and the temperature-raising heat transfer medium is injected into the outer reaction tank body 9. The controller 11 controls the heater and the cooling pipe to perform heating and cooling operations.

[0029] The temperature sensor 27 is used to detect the temperature change in the outer reaction tank body 9 and the inner reaction tank body 15, and feed back the signal to the controller 11, so that the controller 11 knows the temperature change, and then compares the obtained temperature change with the temperature range set at the controller 11. When the temperature is higher than the set range, the heater is controlled to stop heating and cool down naturally or through the cooling pipe. When the temperature is lower than the set range, the internal temperature is increased by the heater to keep the interior in a constant temperature state;

[0030] During the reaction process, the second motor 20 drives the stirring shaft 24 and the driven stirring end 23 to rotate, and the heat transfer medium is stirred evenly through the rotation to reduce the temperature difference; the stirring blade 14 is driven by the first motor 12 at the inner reaction tank 15 to rotate to achieve stirring of the inner reaction medium. The internal medium is transported by the pump body to carry out the medium constant temperature circulation reaction process.

Claims

1. A medium constant temperature circulation reaction device, characterized in that: The device comprises an outer reaction tank body (9), an inner reaction tank body (15) arranged inside the outer reaction tank body (9), a liquid inlet (19) and a liquid outlet (18) respectively installed on the side walls of the outer reaction tank body (9), a second motor (20) is arranged at the bottom of the outer reaction tank body (9), a second drive shaft (21) is arranged at the output end of the second motor (20), and a stirring shaft (24) extending into the inner reaction tank body (15) is connected to the second drive shaft (21).

2. The medium constant temperature circulation reaction device according to claim 1, characterized in that: A connecting belt (22) is mounted on the outer wall of the second driving shaft (21); a driven stirring end (23) is mounted on one end of the connecting belt (22) away from the second driving shaft (21); and a stirring shaft (24) extending into the inner reaction tank body (15) is connected to the driven stirring end (23).

3. The medium constant temperature circulation reaction device according to claim 1, characterized in that: Temperature sensors (27) are provided inside the outer reaction tank body (9) and the inner reaction tank body (15).

4. The medium constant temperature circulation reaction device according to claim 3, characterized in that: A plurality of assembly grooves (17) arranged at intervals in a vertical direction are provided on the inner side wall of the outer reaction tank body (9), and heaters and cooling pipes are installed in the assembly grooves (17).

5. The medium constant temperature circulation reaction device according to claim 1, characterized in that: The device also includes a bracket (1), a base (2) located at the bottom of the bracket (1), and a top plate (10) located at the top of the bracket (1). Two upper and lower positioning frames (3) are installed on the outer wall of the bracket (1), and the outer reaction tank body (9) is arranged at the front end of the positioning frame (3).

6. The medium constant temperature circulation reaction device according to claim 5, characterized in that: A limiting seat (7) is provided at the bottom of the outer reaction tank body (9), and the second motor (20) is located on one side of the limiting seat (7); a limiting frame (8) is provided above the limiting seat (7), and a connecting frame (6) is installed on the limiting frame (8) and the end of the limiting seat (7) close to the positioning frame (3); a limiting groove (16) is provided on the outer wall of the outer reaction tank body (9) close to the upper end, and the limiting frame (8) is installed in the limiting groove (16).

7. The medium constant temperature circulation reaction device according to claim 5, characterized in that: A first motor (12) is provided on the top plate (10), and a first drive shaft (13) is provided at the output end of the first motor (12). The lower end of the first drive shaft (13) extends into the inner reaction tank body (15), and a stirring blade (14) is installed at the lowermost end of the first drive shaft (13).

8. The medium constant temperature circulation reaction device according to claim 5, characterized in that: A screw rod (5) is provided on the side wall of the positioning frame (3), a rotating handle (4) is provided at the end of the screw rod (5), and the rotating handle (4) is assembled and installed through the screw rod (5) and the screw hole of the positioning frame (3).

9. The medium constant temperature circulation reaction device according to claim 4, characterized in that: The device also includes a PLC controller (11) which receives numerical feedback from the temperature sensor and regulates the switch of the heater.

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