Triphenylphosphine synthesis reaction kettle convenient for reaction condition control

Abstract

The utility model discloses a triphenylphosphine synthesis reaction kettle convenient for reaction condition control, and relates to the technical field of chemical production. The device comprises a mounting plate, a box body is fixed to the left side of the upper wall of the mounting plate, a moving box is arranged in the box body, scraping strips are fixed to the four side walls of the moving box, and a motor is arranged above a screw rod; a heating plate is fixed on the lower wall in the box body, a heat conducting plate is fixed above the heating plate corresponding to the inner wall of the box body, a water pump and a water tank are fixed on the right of the box body corresponding to the upper wall of the mounting plate, and a temperature sensor is fixed on the lower side of the left wall of the box body. The movable box moves to drive the scraping strip to clean residues on the inner wall of the tank body, meanwhile, the stirring effect can be achieved, the temperature in the tank body is controlled through cooperation of the heating plate and the water pump, and the problems that residues on the inner wall of the tank body cannot be scraped, the structure is relatively complex, and the cost is high in the prior art are solved. And in the prior art, the reaction temperature is inconvenient to control, and the use is inconvenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, in particular to a triphenylphosphine synthesis reaction kettle which is convenient for controlling reaction conditions. Background Art

[0002] In chemical production, there are two main synthesis processes for preparing triphenylphosphine by reacting chlorobenzene and phosphorus trichloride. One is a step-by-step reaction synthesis method, and the other is a one-step reaction synthesis method. The step-by-step reaction synthesis method is carried out at a lower temperature of 20-30°C, while the one-step reaction synthesis method is carried out at a higher temperature of 50-60°C. Based on this, no matter which method is used, it is necessary to control the reaction temperature in the synthesis reactor during the synthesis so that the synthesis reaction in the synthesis reactor can proceed smoothly.

[0003] After retrieval, the authorization announcement number CN212549507U, the authorization announcement date 2021.02.19 discloses a reactor based on triphenylphosphine synthesis, including a tank body, the bottom of the tank body is fixedly connected with a support leg, the top of the tank body is fixedly installed with a drive motor, the inside of the tank body includes a stirring shaft and a stirring blade, the top of the stirring shaft is rotatably connected to the inner top wall of the tank body, and one side of the stirring blade is fixedly connected to the side surface of the stirring shaft. The reactor based on triphenylphosphine synthesis is shielded by a partition, a ring and a shielding tooth block to block the nozzle caused by contact between the reactant and the nozzle. When the device is completed, the lifting plate is pushed downward by an electric push rod, so that the nozzle passes through the through hole, the ring and the shielding tooth block inside the partition and extends to the bottom of the partition, and then the inside of the device is flushed by the nozzle spray, so that the residue inside the device is rinsed clean to prevent interference with the next use.

[0004] The prior art achieves a stirring effect by driving a motor to drive a stirring blade, and conveys water inside a water tank to the inside of a diversion cavity through a water pump, and then sprays the water through a nozzle to flush the inside of the device. However, in actual use, it is impossible to scrape off the residue on the inner wall of the tank, and the structure is relatively complex. In addition, the prior art is not convenient for controlling the reaction temperature, and is inconvenient to use. Therefore, we provide a triphenylphosphine synthesis reactor that is easy to control reaction conditions to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a triphenylphosphine synthesis reactor which is convenient for controlling reaction conditions. The mobile box is moved to drive a scraper to clean the inner wall of the box, and a stirring effect can be achieved at the same time. The temperature inside the box is controlled by the cooperation of a heating plate and a water pump, thereby solving the problems that the prior art cannot scrape off the inner wall of the tank, the structure is relatively complex, and the prior art is not convenient for controlling the reaction temperature and is inconvenient to use.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a triphenylphosphine synthesis reaction kettle which is convenient for controlling reaction conditions, comprising a mounting plate, a box body is fixed on the left side of the upper wall of the mounting plate, a moving box is arranged inside the box body, scraping strips are fixed on four side walls of the moving box, a screw sleeve is fixed on the upper wall of the moving box, a screw rod is connected with the inner thread of the screw sleeve, and a motor is arranged above the screw rod;

[0008] A heating plate is fixed to the lower wall inside the box, a heat conducting plate is fixed to the inner wall of the box above the heating plate, a water pump and a water tank are fixed to the upper wall of the mounting plate on the right side of the box, a fan is fixed to the upper wall of the water tank, and a temperature sensor is fixed to the lower side of the left wall of the box.

[0009] The utility model is further configured such that a box cover is detachably fixed to the upper wall of the box body, and the power output shaft of the motor is fixedly connected to the screw rod, the cross-section of the scraper strip is triangular, and the scraper strip is in contact with the inner wall of the box body.

[0010] The utility model is further configured as follows: a circular hollow box is fixed to the lower wall of the box cover, four outer side walls of the circular hollow box are each provided with a plurality of water spray holes, a water pipe is fixed to the upper wall of the circular hollow box, and the outer end of the water pipe is located outside the box cover.

[0011] The utility model is further configured that a drain valve is fixed on the lower wall of the box body, and the upper end of the drain valve is located above the heat conduction plate, a plurality of legs are fixed along the edge of the lower wall of the mounting plate, and a transparent window is fixed on the front wall of the box body.

[0012] The utility model is further configured that partitions are fixed equidistantly inside the moving box, the length of the partitions is smaller than the length between the front and rear side walls inside the moving box, and two adjacent partitions are staggered.

[0013] The utility model is further configured such that annular sleeves are fixed equidistantly on both sides of the partition, a delivery pipe is fixed to the left front end of the movable box, and a spray head is fixed to the other end of the delivery pipe, the spray head is located inside the water tank, and the spray direction of the spray head is downward.

[0014] The utility model is further configured such that the liquid inlet and liquid outlet of the water pump are both fixed with connecting pipes, the other end of the connecting pipe at the liquid inlet of the water pump is fixedly connected to the lower end of the left wall of the water tank, and the other end of the connecting pipe at the liquid outlet of the water pump is fixedly connected to the right front end of the mobile box.

[0015] The utility model is further configured such that a protective net is fixed on the upper wall of the fan, air outlet grooves are provided on the upper sides of the front and rear side walls of the water tank, and dustproof nets are fixed on the outside of the air outlet grooves corresponding to the side walls of the water tank.

[0016] The utility model has the following beneficial effects:

[0017] The utility model provides a moving box and a scraper, and the moving box drives the scraper to move. Since the scraper contacts the inner wall of the box, the scraper scrapes off the residue on the inner wall of the box when the scraper moves. At the same time, when the moving box moves, the reactant passes through the annular sleeve and is in motion, so as to achieve the effect of stirring and mixing. Compared with the prior art, not only can the residue on the inner wall of the box be scraped off, but also the mixing effect can be achieved, and the structure is simpler, which solves the problem that the prior art cannot scrape off the residue on the inner wall of the tank and has a relatively complex structure.

[0018] The utility model provides a heating plate and a water pump. When the temperature in the box is low, the heating plate generates heat to heat the reactants in the box. When the temperature in the box is high, the water pump moves water through the moving box to cool the reactants in the box, and then flows back to the water tank for circulation, thereby achieving the effect of cooling the reactants in the box and keeping the temperature of the reactants in the box within a reasonable range, so as to facilitate the control of the reaction temperature. This solves the problem that the prior art is inconvenient to control the reaction temperature and is inconvenient to use.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 The figure is an overall structural diagram of a triphenylphosphine synthesis reactor which is convenient for controlling reaction conditions.

[0022] Figure 2 This is a structural diagram of the box body and the interior of the water tank.

[0023] Figure 3 The left-side structural diagram of a triphenylphosphine synthesis reactor which is convenient for controlling reaction conditions.

[0024] Figure 4 This is a structural diagram of the interior of the mobile box.

[0025] Figure 5 The diagram is a partial structural exploded view of a triphenylphosphine synthesis reactor which facilitates the control of reaction conditions.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-box cover, 101-reciprocating hollow box, 101a-water pipe, 101b-water spray hole, 2-motor, 201-screw, 3-box, 301-temperature sensor, 302-drain valve, 303-heat conduction plate, 304-heating plate, 305-transparent window, 4-mounting plate, 401-water pump, 401a-connecting pipe, 402-leg, 5-water tank, 501-delivery pipe, 501a-sprinkler head, 502-fan, 502a-protective net, 503-dustproof net, 504-air outlet groove, 6-mobile box, 601-annular sleeve, 602-scraper, 603-screw sleeve, 604-partition. DETAILED DESCRIPTION

[0028] 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 of 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. Embodiment 1

[0029] See also Figure 1-3 The utility model is a triphenylphosphine synthesis reactor which is convenient for controlling reaction conditions, comprising a mounting plate 4, a box body 3 is fixed on the left side of the upper wall of the mounting plate 4, a moving box 6 is arranged inside the box body 3, scraping strips 602 are fixed on the four side walls of the moving box 6, which are used to scrape the residue on the inner wall of the box body 3, and the scraping strips 602 can be made of rubber material, a screw sleeve 603 is fixed on the upper wall of the moving box 6, a screw rod 201 is connected to the inner thread of the screw sleeve 603, and a motor 2 is arranged above the screw rod 201, and the motor 2 is used to drive the screw rod 201 to rotate, so that the screw sleeve 603 moves and drives the moving box 6 to move;

[0030] Specifically, the upper wall of the box body 3 is detachably fixed with the box cover 1, and the power output shaft of the motor 2 is fixedly connected to the screw 201, the cross section of the scraper 602 is triangular, and the scraper 602 contacts the inner wall of the box body 3, and the edges of the scraper 602 contact the inner wall of the box body 3;

[0031] A circular hollow box 101 is fixed to the lower wall of the box cover 1, and a plurality of water spray holes 101b are provided on the four outer side walls of the circular hollow box 101. A water pipe 101a is fixed to the upper wall of the circular hollow box 101, and the outer end of the water pipe 101a is located outside the box cover 1, and the outer end of the water pipe 101a is connected to the cleaning liquid. With the above arrangement, during cleaning, the cleaning liquid passes through the water pipe 101a into the circular hollow box 101, and then passes through the water spray holes 101b to act on the inner wall of the box body 3 to achieve flushing of the inner wall of the box body 3.

[0032] A drain valve 302 is fixed to the lower wall of the box body 3, and the upper end of the drain valve 302 is located above the heat conducting plate 303. The inner space of the drain valve 302 is communicated with the upper space of the heat conducting plate 303, so that the cleaning liquid in the box body 3 for washing the inner wall of the box body 3 can be discharged. A plurality of legs 402 are fixed along the edge of the lower wall of the mounting plate 4, and a transparent window 305 is fixed on the front wall of the box body 3, so that the amount of liquid inside the box body 3 can be checked.

[0033] The operation process of this embodiment is as follows: when the reactants in the box body 3 are stirred and mixed, the motor 2 is operated to drive the screw 201 to rotate, so that the screw sleeve 603 moves and drives the mobile box 6 to move, so that the reactants are in motion to achieve the mixing effect. When the inner wall of the box body 3 is cleaned, the cleaning liquid is passed through the water pipe 101a to enter the circular hollow box 101, and then passes through the water spray hole 101b to act on the inner wall of the box body 3 to perform a flushing operation. After flushing, the mobile box 6 is moved from top to bottom to drive the scraper 602 to move to scrape off the residue on the inner wall of the box body 3. Embodiment 2

[0034] See also Figure 1 , 2 , 4 and 5 are the second embodiment of the utility model, which is based on the previous embodiment, but is different from the first embodiment in that: a heating plate 304 is fixed to the lower wall inside the box body 3 for generating heat to heat the reactants in the box body 3, a heat conducting plate 303 is fixed to the inner wall of the box body 3 above the heating plate 304, and the edge of the heat conducting plate 303 is sealed with the inner wall of the box body 3, a water pump 401 and a water tank 5 are fixed to the upper wall of the mounting plate 4 on the right side of the box body 3, the water pump 401 is used to transport cooling water, the water tank 5 is used to store cooling water, a fan 502 is fixed to the upper wall of the water tank 5 for generating airflow to act on the water in the water tank 5 for rapid cooling, a temperature sensor 301 is fixed to the lower side of the left wall of the box body 3 for detecting the temperature of the reactants in the box body 3, and the temperature measuring probe of the temperature sensor 301 can contact the reactants inside the box body 3;

[0035] Specifically, the interior of the mobile box 6 is equidistantly fixed with partitions 604, the length of the partition 604 is less than the length between the front and rear side walls of the interior of the mobile box 6, and two adjacent partitions 604 are staggered. Figure 4 As shown, under the action of the partition 604, the cooling water moves in a serpentine manner in the moving box 6 to ensure uniformity during cooling;

[0036] Annular sleeves 601 are fixed equidistantly on both sides of the partition 604, and the annular sleeves 601 are sealed and fixed to the upper and lower side walls of the mobile box 6. When the mobile box 6 moves, the reactants will pass through the annular sleeves 601 to achieve the movement of the reactants to achieve a stirring and mixing effect. A delivery pipe 501 is fixed to the left front end of the mobile box 6, and a spray head 501a is fixed to the other end of the delivery pipe 501. The spray head 501a is located inside the water tank 5, and the spray direction of the spray head 501a is downward. The spray head 501a is relatively fixed to the water tank 5, so that the spray direction of the spray head 501a is always downward to avoid water splashing. At the same time, the spray head 501a makes the water spray out, and the airflow acts on the water to enhance the cooling effect of the water;

[0037] The liquid inlet and liquid outlet of the water pump 401 are both fixed with connecting pipes 401a, and the connecting pipe 401a and the delivery pipe 501 are both hoses, so that the mobile box 6 can move up and down, and the other end of the connecting pipe 401a at the liquid inlet end of the water pump 401 is fixedly connected to the lower end of the left wall of the water tank 5, and the other end of the connecting pipe 401a at the liquid outlet end of the water pump 401 is fixedly connected to the right front end of the mobile box 6;

[0038] A protective net 502a is fixed on the upper wall of the fan 502 to provide protection for the fan 502. Air outlet grooves 504 are provided on the upper sides of the front and rear side walls of the water tank 5. The airflow carries the heat of the water in the water tank 5 and is discharged from the water tank 5 through the air outlet grooves 504. A dustproof net 503 is fixed on the outside of the air outlet grooves 504 corresponding to the side walls of the water tank 5 to prevent foreign debris from entering the water tank 5 through the air outlet grooves 504.

[0039] The rest of the structure is the same as that of the first embodiment;

[0040] The operation process of this embodiment is as follows: when the reactants are in the synthesis reaction, the temperature sensor 301 detects the temperature of the reactants inside the box 3, and the temperature sensor 301 sends an electrical signal to the controller. When the temperature of the reactants is low, the controller controls the heating plate 304 to work, and the heat generated by the heating plate 304 acts on the heat conducting plate 303 and is heat-conducted to the reactants. At the same time, the controller causes the power output shaft of the motor 2 to reciprocate and cause the mobile box 6 to move up and down to achieve uniform heating of the reactants, and stops working after reaching a suitable temperature. When the temperature of the reactants is high, the controller controls the water pump 401 and the fan 502 to work, and the water pump 401 works to cause the water in the water tank 5 to enter the mobile box 6, and the heat conduction of the mobile box 6 is used to cool the reactants until the temperature is within a reasonable range. The water entering the mobile box 6 passes through the delivery pipe 501 and enters the nozzle for spraying. At this time, the airflow generated by the fan 502 dissipates the heat of the sprayed water, and then the airflow carries the heat through the air outlet slot 504 and is discharged to the outside.

[0041] In addition, the motor 2, water pump 401, temperature sensor 301 and fan 502 in the triphenylphosphine synthesis reactor for easy reaction condition control are electrically connected to the external power supply through conductive wires. At the same time, the motor 2, water pump 401, temperature sensor 301, fan 502 and controller are all existing technologies and their models are not limited here. The temperature sensor 301 realizes the temperature collection of the reactants inside the box 3, and the controller controls the motor 2, water pump 401 and fan 502 to maintain them in a suitable temperature range.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A triphenylphosphine synthesis reactor for convenient reaction condition control, comprising a mounting plate (4), characterized in that: A box body (3) is fixed to the left side of the upper wall of the mounting plate (4), a moving box (6) is arranged inside the box body (3), scrapers (602) are fixed to the four side walls of the moving box (6), a screw sleeve (603) is fixed to the upper wall of the moving box (6), a screw rod (201) is connected to the inner thread of the screw sleeve (603), and a motor (2) is arranged above the screw rod (201); A heating plate (304) is fixed to the lower wall inside the box body (3); a heat conducting plate (303) is fixed above the heating plate (304) on the inner wall of the box body (3); a water pump (401) and a water tank (5) are fixed to the upper wall of the right side of the box body (3) corresponding to the mounting plate (4); a fan (502) is fixed to the upper wall of the water tank (5); and a temperature sensor (301) is fixed to the lower side of the left wall of the box body (3).

2. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 1, characterized in that: A box cover (1) is detachably fixed to the upper wall of the box body (3), and a power output shaft of the motor (2) is fixedly connected to the screw rod (201). The cross section of the scraper bar (602) is triangular, and the scraper bar (602) is in contact with the inner wall of the box body (3).

3. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 2, characterized in that: A circular hollow box (101) is fixed to the lower wall of the box cover (1), a plurality of water spray holes (101b) are provided on four outer side walls of the circular hollow box (101), a water pipe (101a) is fixed to the upper wall of the circular hollow box (101), and the outer end of the water pipe (101a) is located outside the box cover (1).

4. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 1, characterized in that: A drain valve (302) is fixed to the lower wall of the box body (3), and the upper end of the drain valve (302) is located above the heat conduction plate (303). A plurality of legs (402) are fixed along the edge of the lower wall of the mounting plate (4). A transparent window (305) is fixed to the front wall of the box body (3).

5. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 1, characterized in that: Partitions (604) are fixed at equal intervals inside the moving box (6), the length of the partitions (604) is less than the length between the front and rear side walls inside the moving box (6), and two adjacent partitions (604) are arranged in a staggered manner.

6. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 5, characterized in that: Annular sleeves (601) are fixed at equal distances on both sides of the partition (604), a delivery pipe (501) is fixed to the left front end of the movable box (6), and a spray head (501a) is fixed to the other end of the delivery pipe (501), the spray head (501a) is located inside the water tank (5), and the spray direction of the spray head (501a) is downward.

7. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 1, characterized in that: The liquid inlet and liquid outlet ends of the water pump (401) are both fixed with connecting pipes (401a); the other end of the connecting pipe (401a) at the liquid inlet end of the water pump (401) is fixedly connected to the lower end of the left wall of the water tank (5); and the other end of the connecting pipe (401a) at the liquid outlet end of the water pump (401) is fixedly connected to the right front end of the moving box (6).

8. A triphenylphosphine synthesis reaction kettle that is convenient for controlling reaction conditions according to claim 7, characterized in that: A protective net (502a) is fixed to the upper wall of the fan (502), air outlet grooves (504) are provided on the upper sides of the front and rear side walls of the water tank (5), and a dustproof net (503) is fixed outside the air outlet groove (504) corresponding to the side wall of the water tank (5).

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