CN214130339U

CN214130339U - Rectifying device is used in trifluoroiodomethane production

Info

Publication number: CN214130339U
Application number: CN202021763244.2U
Authority: CN
Inventors: 喻文; 顾晓华; 杨先金; 张嘉恒; 杨曲航
Original assignee: Yangzhou Mosel Electronic Materials Co ltd
Current assignee: Yangzhou Mosel Electronic Materials Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-09-07
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a rectifying device for trifluoroiodomethane production, which relates to the technical field of rectifying equipment. The utility model comprises a tower kettle and a preheating box, wherein the preheating box is arranged outside the tower kettle; a heating plate is arranged on one side of the bottom of the preheating box, and a feeding pump is arranged on the other side of the bottom of the preheating box; one side of the top of the preheating box is communicated with a first feeding hole; the other side of the top of the preheating box is communicated with a feeding pipe; the bottom of the tower kettle is a tower bottom product recovery layer, and a reboiler and a delivery pump are also arranged in the tower bottom product recovery layer; a first-stage rectifying layer, a second-stage rectifying layer and a third-stage rectifying layer are detachably arranged in the tower kettle from bottom to top in sequence; the tower top is detachably arranged on the third-stage rectifying layer; the top of the tower top is communicated with a collecting port; a partial condenser is arranged in the tower top; the top of the tower is also provided with a reflux pump communicated with the partial condenser. The utility model has the advantages of simple structure, small size, convenient temperature control, convenient operation and the like, and can realize the rectification treatment of trifluoroiodomethane.

Description

Rectifying device is used in trifluoroiodomethane production

Technical Field

The utility model belongs to the technical field of the rectification equipment, concretely relates to trifluoroiodomethane production is with rectifier unit.

Background

In the process of medicine manufacturing, liquid medicine often needs to be rectified, the purity of products is improved through rectification, the existing rectification device mainly refers to a rectification machine, the rectification machine has the possibility of leakage in the operation process, and the rectification of the products in the rectification machine and the pollution to the external environment are influenced.

The publication No. CN 107088314A discloses a rectifying tower, which comprises a barrel, a barrel top elliptical head, a middle connecting section, a barrel bottom elliptical head, a feeding pipe assembly, a heating assembly, a tray assembly, a heat exchange pipe, a heater, a reflux liquid connecting pipe assembly, a reflux liquid processing device, a liquid distributor, a support grid plate, a collector, a liquid collector, a packing pressing ring, a skirt base barrel, a barrel bottom liquid phase outlet, a reinforcing ring and a flange. Although the device realizes the rectification of the product, the device lacks a preheating device for the product and is not easy to control the temperature in the cylinder.

In view of the above circumstances, there is a need for a rectification apparatus for producing trifluoroiodomethane, which has the advantages of simple structure, small size, convenience in temperature control, convenience in operation and the like, and can realize rectification treatment of trifluoroiodomethane as a required product.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rectifier unit is used in trifluoroiodomethane production has simple structure, small in size, the controlled temperature of being convenient for, advantages such as convenient operation can realize the rectification processing to required product trifluoroiodomethane.

The utility model provides a following technical scheme:

the utility model provides a rectifying device is used in trifluoroiodomethane production, includes tower cauldron and preheating cabinet: the preheating box is arranged on the outer side of the tower kettle; a heating plate is arranged on one side of the bottom of the preheating box, and a feeding pump is arranged on the other side of the bottom of the preheating box; one side of the top of the preheating box is communicated with a first feeding hole; the other side of the top of the preheating box is communicated with a feeding pipe; the bottom of the tower kettle is a tower bottom product recovery layer, and a reboiler and a delivery pump are also arranged in the tower bottom product recovery layer; the reboiler is communicated with a delivery pump; the bottom of the tower kettle is also provided with a kettle liquid outlet; a first-stage rectification layer, a second-stage rectification layer and a third-stage rectification layer are detachably arranged in the tower kettle from bottom to top in sequence; the tower top is detachably arranged on the third-stage rectifying layer; the top of the tower top is communicated with a collecting port; a partial condenser is arranged in the tower top; and the tower top is also provided with a reflux pump communicated with the partial condenser.

Preferably, a heating pipe is arranged in the first-stage rectifying layer; one end of the heating pipe is inserted into the first-stage rectifying layer, and the other end of the heating pipe is connected to the outer side of the first-stage rectifying layer through a mounting plate; the outer side of the first-stage rectifying layer is also communicated with a second feeding hole; the second feeding hole can be connected with a feeding pipe; the top of the first-stage rectifying layer is sequentially provided from top to bottom; corrugated packing, gas distributors, and collection trays; the bottom of the tower kettle is provided with a plurality of liquid distributors and collecting trays; and a sealing ring is arranged at the contact part of the heating pipe and the first-stage rectifying layer.

Preferably, the first rectification layer, the second rectification layer and the third rectification layer are all in a through hole structure, and are provided with a first connecting device and a second connecting device; an iron sheet, a magnetic device and an elastic element are arranged at the interface of the first connecting device and the second connecting device; the top bottom of the tower is provided with a connecting groove, a magnetic device and an elastic element are also arranged at a connecting groove interface, and the connecting groove can be sleeved into a second connecting device at the top of the third-stage rectifying layer.

Preferably, a first temperature sensor and a power supply are further arranged in the preheating box; a controller is arranged outside the preheating box; the feeding pipe is also provided with a first electromagnetic valve; a temperature sensor II and a power supply are also arranged in the first-stage rectifying layer; a control panel is arranged on the outer side of the first-stage rectifying layer; and a third electromagnetic valve is also arranged on the second feeding hole.

Preferably, the top of the tower is externally provided with a jacket, and the jacket comprises a cooling water inlet and a cooling water outlet for circulating cooling water.

The utility model discloses a profitable effect:

the multi-stage rectifying layer is detachably arranged in the tower kettle, so that the number of the rectifying layers can be increased according to the requirement, the tower kettle is convenient to carry and can be reassembled; the magnetic device is added at the connection position of the rectifying layer, so that each connection layer is conveniently fixed, and the sealing performance of the device is improved due to the addition of the elastic element; a control panel and a temperature sensor are arranged outside each rectifying layer, so that the temperature in the kettle can be conveniently controlled; the preheating box is arranged on the outer side of the tower kettle, so that products needing rectification can be preheated in advance, a controller is added, and preheating temperature can be conveniently controlled. The utility model discloses accomplished simple structure, small in size, the controlled temperature of being convenient for, convenient operation can realize the rectification treatment to trifluoroiodomethane.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural diagram of a first-stage rectifying layer in the present invention.

Description of reference numerals:

1. a collection port; 2. the tower top; 3. connecting grooves; 4. a feed pipe; 5. a first electromagnetic valve; 6. a first feeding hole; 7. a controller; 8. a first temperature sensor; 9. heating plates; 10. a feed pump; 11. a preheating box; 12. a tower kettle; 13. a reboiler; 14. a delivery pump; 15. a first rectification layer; 16. a second rectification layer; 17. a third rectification layer; 18. a reflux pump; 19. a second electromagnetic valve; 20. a dephlegmator; 151. a second feeding hole; 152. a third electromagnetic valve; 153. heating a tube; 154. a first connecting device; 155. a seal ring; 156. mounting a plate; 157. a second temperature sensor; 158. a control panel; 159. a collection tray; 160. a gas distributor; 161. corrugated packing; 162. and a second connecting device.

Detailed Description

As shown in the figure, the rectifying device for producing trifluoroiodomethane comprises a tower kettle 12 and a preheating box 11, wherein the preheating box 11 is arranged on the outer side of the tower kettle 12; the top of the preheating box 11 is communicated with a first feeding hole 6; the bottom of the preheating box 11 is provided with a heating plate 9, a first temperature sensor 8 and a power supply; the controller 7 is arranged outside the preheating box 11; the heating plate 9 and the temperature sensor I are both electrically connected with the controller 7, and the controller 7 is electrically connected with the power supply; when in use, the trifluoroiodomethane product flows into the preheating box 11 from the first feeding hole 6; the preheating time of the heating plate 9 is started and set through the controller 7; the bottom of the preheating box 11 is also provided with a feeding pump 10; the top of the preheating box 11 is communicated with a feeding pipe 4; the feeding pipe 4 is also provided with a first electromagnetic valve 5; when the preheating of the product is finished, the controller 7 opens the first electromagnetic valve 5 and the feeding pump 10, so that the product flows into the tower kettle 12 through the feeding pipe 4.

A first-stage rectifying layer 15, a second-stage rectifying layer 16 and a third-stage rectifying layer 17 are detachably mounted in the tower kettle 12 from bottom to top in sequence, and the first-stage rectifying layer, the second-stage rectifying layer and the third-stage rectifying layer are all of through hole structures, so that gas phase and liquid phase circulation is facilitated; the third-stage rectifying layer is provided with a first connecting device 154 and a second connecting device 162; an iron sheet, a magnetic device and an elastic element are arranged at the interface of the first connecting device 154 and the second connecting device 162, the first connecting device 154 is matched with the second connecting device 162, the first connecting device 154 of the second rectification layer 16 can be inserted into the second connecting device 162 of the first rectification layer 15, and sealing is realized through the elastic element; fixing the multistage rectifying layer by an iron sheet and a magnetic device;

the top of the first-stage rectifying layer 15 is sequentially arranged from top to bottom; corrugated packing 161, gas distributor 160, and collection tray 159; the gas phase is uniformly distributed on the collecting tray 159 after passing through the gas distributor 160; a heating pipe 153 is arranged in the first-stage rectifying layer 15; one end of the heating pipe 153 is inserted into the first-stage rectifying layer 15, the other end of the heating pipe 153 is connected to the outer side of the first-stage rectifying layer 15 through the mounting plate 156, and a sealing ring 155 is arranged at the contact position of the heating pipe 153 and the first-stage rectifying layer 15, so that gas phase leakage can be prevented; a second temperature sensor 157 and a power supply are also arranged in the first-stage rectifying layer 15; a control panel 158 is arranged on the outer side of the first-stage rectifying layer 15, and the control panel 158 is electrically connected with the heating pipe 153 and the second temperature sensor 157; the control panel 158 is electrically connected to a power supply; when in use, the heating pipe 153 is opened through the control panel 158 to heat the product in the first-stage rectifying layer 15; the outer side of the first-stage rectifying layer 15 is also communicated with a second feeding hole 151; the second feeding port 151 can be connected with the feeding pipe 4, a third electromagnetic valve 152 is further arranged on the second feeding port 151, and the opening and closing of the feeding pipe 4 can be controlled through the third electromagnetic valve 152;

the bottom of the tower kettle 12 is provided with a plurality of liquid distributors and collecting trays, the bottom of the tower kettle 12 is a tower bottom product recovery layer, and a reboiler 13 and a delivery pump 14 are also arranged in the tower bottom product recovery layer; the reboiler 13 is communicated with a delivery pump 14; the bottom of the tower kettle 12 is also provided with a kettle liquid outlet; the liquid phase is uniformly distributed on the collecting tray through the liquid distributor, and the product can be heated again through the reboiler 13, so that the purity of the product is improved; the resulting product is collected by flowing out of the still outlet by means of the transfer pump 14.

The bottom of the tower top 2 is provided with a connecting groove 3, a magnetic device and an elastic element are also arranged at the interface of the connecting groove 3, and the connecting groove 3 can be sleeved on a second connecting device 162 at the top of the third-stage rectifying layer 17 to complete connection; the top of the tower top 2 is communicated with a collecting port 1; a partial condenser 20 is arranged in the tower top 2; the tower top 2 is also provided with a reflux pump 18 communicated with a partial condenser 20; the reflux pump 18 is also provided with a second electromagnetic valve 19, and the second electromagnetic valve 19 is electrically connected with a control system outside the tower top 2; the tower top 2 is also provided with a jacket which comprises a cooling water inlet and a cooling water outlet for circulating cooling water; the cooling water flows into the top of the tower through a cooling water inlet, and the gas phase in the kettle is subjected to fractional condensation, cooling and reflux through the fractional condenser 20, so that the continuous rectification of the product can be realized.

The utility model discloses a working method: the first-stage rectifying layer 15, the second-stage rectifying layer 16, the third-stage rectifying layer 17 and the tower top 2 are sequentially arranged on the tower kettle 12 from bottom to top; trifluoroiodomethane to be rectified flows into a preheating box 11 through a first feeding hole 6, the temperature to be preheated is set through a controller 7, after the temperature is reached, a first electromagnetic valve 5 and a third electromagnetic valve 152 are opened, a product flows into a tower kettle 12, heaters 153 of all rectifying layers are opened to heat the product, the product sequentially passes through a first-stage rectifying layer 15, a second-stage rectifying layer 16 and a third-stage rectifying layer 17 to be subjected to multi-stage rectification, the product is subjected to fractional condensation and cooling through a fractional condenser 20, and the product is subjected to reflux through a reflux pump 18 to realize continuous rectification; the liquid phase flows from the liquid distributor to the bottom of the kettle gradually and reaches the reboiler 13 to heat the product, so that the product is vaporized again, the gas phase continuously flows to the top of the tower 2, the liquid phase gradually drops to the bottom of the kettle, finally, the kettle liquid product can be collected from the kettle liquid outlet, and the tower top product is collected at the collection port 1 to finish rectification.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a rectifying device is used in trifluoroiodomethane production, includes tower cauldron (12) and preheating cabinet (11), its characterized in that: the preheating box (11) is arranged on the outer side of the tower kettle (12); a heating plate (9) is arranged on one side of the bottom of the preheating box (11), and a feeding pump (10) is arranged on the other side of the bottom of the preheating box; one side of the top of the preheating box (11) is communicated with a first feeding hole (6); the other side of the top of the preheating box (11) is communicated with a feeding pipe (4); the bottom of the tower kettle (12) is a tower bottom product recovery layer, and a reboiler (13) and a delivery pump (14) are further arranged in the tower bottom product recovery layer; the reboiler (13) is in communication with a transfer pump (14); the bottom of the tower kettle (12) is also provided with a kettle liquid outlet;

a first-stage rectifying layer (15), a second-stage rectifying layer (16) and a third-stage rectifying layer (17) are detachably arranged in the tower bottom (12) from bottom to top in sequence; the tower top (2) is detachably arranged on the third-stage rectifying layer (17); the top of the tower top (2) is communicated with a collecting port (1); a partial condenser (20) is arranged in the tower top (2); the tower top (2) is also provided with a reflux pump (18) communicated with the partial condenser (20).

2. The rectification apparatus for trifluoroiodomethane production according to claim 1, wherein the rectification apparatus comprises: a heating pipe (153) is arranged in the first-stage rectifying layer (15); one end of the heating pipe (153) is inserted into the first-stage rectifying layer (15), and the other end of the heating pipe is connected to the outer side of the first-stage rectifying layer (15) through a mounting plate (156); a second feeding hole (151) is communicated with the outer side of the first-stage rectifying layer (15); the second feeding hole (151) can be connected with a feeding pipe (4); the top of the first-stage rectifying layer (15) is sequentially arranged from top to bottom; a corrugated packing (161), a gas distributor (160), and a collection tray (159); the bottom of the tower kettle (12) is provided with a plurality of liquid distributors and collecting trays; and a sealing ring (155) is arranged at the contact position of the heating pipe (153) and the first-stage rectifying layer (15).

3. The rectification apparatus for trifluoroiodomethane production according to claim 1, wherein the rectification apparatus comprises: the first-stage rectifying layer (15), the second-stage rectifying layer (16) and the third-stage rectifying layer (17) are all of through hole structures, and are provided with a first connecting device (154) and a second connecting device (162); an iron sheet, a magnetic device and an elastic element are arranged at the interface of the first connecting device (154) and the second connecting device (162); the tower top (2) bottom is equipped with spread groove (3), spread groove (3) kneck also is equipped with magnetic means and elastic element, spread groove (3) can embolia connecting device two (162) at third stage rectification layer (17) top.

4. The rectification apparatus for trifluoroiodomethane production according to claim 2, wherein: a first temperature sensor (8) and a power supply are also arranged in the preheating box (11); a controller (7) is arranged outside the preheating box (11); the feeding pipe (4) is also provided with a first electromagnetic valve (5); a second temperature sensor (157) and a power supply are also arranged in the first-stage rectifying layer (15); a control panel (158) is arranged on the outer side of the first-stage rectifying layer (15); and a third electromagnetic valve (152) is further arranged on the second feeding hole (151).

5. The rectification apparatus for trifluoroiodomethane production according to claim 1, wherein the rectification apparatus comprises: the tower top (2) is externally provided with a jacket, and the jacket comprises a cooling water inlet and a cooling water outlet for circulating cooling water.