CN215917388U

CN215917388U - Pressure-resistant glass reaction kettle for lab scale

Info

Publication number: CN215917388U
Application number: CN202122297657.7U
Authority: CN
Inventors: 李磊; 韩志刚
Original assignee: Shandong Longhua New Material Co ltd
Current assignee: Shandong Longhua New Material Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-01
Anticipated expiration: 2031-09-22

Abstract

The utility model relates to the technical field of glass reaction kettles, in particular to a small-scale pressure-resistant glass reaction kettle. Withstand voltage glass reation kettle of lab scale, including kettle cover, cauldron body glass inner bag, protective sheath, agitating unit, feed inlet and discharge gate, still include the glass inlet pipe that links to each other with kettle cover top feed inlet to and set up the heating pipe and set up a plurality of window on the protective sheath in cauldron body glass inner bag inner wall both sides, the heating pipe is vertically arranged back and forth along cauldron body glass inner bag inner wall both sides, the position of window staggers each other with the heating pipe. The small-test pressure-resistant glass reaction kettle disclosed by the utility model is high in sealing property, strength and visualization degree, can be used for observing the raw material feeding condition and the reaction process in the reaction kettle in an all-around manner, and is beneficial to control of a small-test process.

Description

Pressure-resistant glass reaction kettle for lab scale

Technical Field

The utility model relates to the technical field of glass reaction kettles, in particular to a small-scale pressure-resistant glass reaction kettle.

Background

The pressure-resistant glass reaction kettle consists of a glass inner container, a kettle cover flange, a kettle bottom flange, an outer jacket with a window and other main parts, wherein the inner container can bear the working pressure of 1.5MPa, and the working temperature can reach as high as 200 ℃. The reaction kettle is highly transparent, is convenient for observing material reaction, has high corrosion resistance, and can be used under the working condition of corrosive medium.

The kettle body of the glass reaction kettle is made of aluminum silicon glass through multiple processes of tempering, can be installed and used through a hydrostatic test (the pressure of the hydrostatic test is 4 times of the safety coefficient of the using pressure), and can be used after the hydrostatic test, the air tightness test, the complete machine operation and the heating test.

In the research and development process of polyether polyol, a glass reaction kettle is generally used for small test, a magnetic stirrer of the glass reaction kettle has large stirring moment, high sealing performance, no leakage and high transparency of a kettle body, the reaction process of materials can be clearly seen, the reaction process can be conveniently recorded, and the actual condition of the reaction can be known.

However, the existing glass reaction kettle adopts a heating mode that the outer wall of the glass liner is heated in a surrounding mode by using a heat conduction pipe, the internal condition of the reaction kettle can be observed only from a gap of the surrounding heat conduction pipe, and the visual field is limited; and only the inner container of the reaction kettle is made of transparent glass, so that the feeding process of raw materials in the reaction process cannot be observed in detail, particularly the color change.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a withstand voltage glass reation kettle of lab scale, the leakproofness is high, and intensity is high, and visual degree is high, can all-round survey the reaction process in raw materials feeding condition and the reation kettle, is favorable to the control of lab scale test process.

The utility model relates to a small-scale pressure-resistant glass reaction kettle, which comprises a kettle cover, a kettle body glass inner container, a protective sleeve, a stirring device, a feeding hole, a discharging hole, a glass feeding pipe, heating pipes and a plurality of windows, wherein the glass feeding pipe is connected with the feeding hole at the top of the kettle cover, the heating pipes are arranged on two sides of the inner wall of the kettle body glass inner container, the windows are arranged on the protective sleeve, the heating pipes are vertically arranged back and forth along two sides of the inner wall of the kettle body glass inner container, and the positions of the windows and the heating pipes are staggered.

And a pressure instrument and a temperature instrument are arranged in the glass inner container of the kettle body. The pressure and the temperature in the kettle body in the pilot scale test process are detected through the pressure instrument and the temperature instrument, and the regulation and the control are convenient.

The kettle cover is provided with a feeding hole, a nitrogen inlet, an exhaust hole, a vacuum pumping hole and a sampling hole. Wherein the glass inlet pipe is connected to the feed inlet, and the joint adopts metal connector, guarantees reation kettle glass inlet pipe's joint strength, changes conventional feed line into transparent glass pipeline, can observe the feeding condition of material, more is favorable to the control of small test process.

The bottom of the kettle body glass liner is provided with a heat conduction oil inlet and a heat conduction oil outlet, and the heat conduction oil inlet and the heat conduction oil outlet are respectively connected with two ends of the heating pipe. The surrounding type heating of the external heat conduction pipe is changed into the heating of the vertical insertion type heating pipe, the visual area of the glass liner of the kettle body is increased under the condition that the heat conduction efficiency is not changed, and the internal reaction of the reaction kettle can be observed conveniently.

The number of the windows is 2, and the windows are distributed at symmetrical positions on two sides of the protective sleeve. In the lab scale experimentation, observe the reaction conditions in the reation kettle through the window, the window position symmetry has ensured that the light in the internal glass inner bag of cauldron is sufficient when observing, can clearly see the internal material condition of cauldron.

The kettle body glass liner and the glass feeding pipe are made of aluminum-silicon glass, the highest bearing working pressure is 1.5MPa, the highest working temperature is 200 ℃, the corrosion resistance is high, the kettle body glass liner and the glass feeding pipe can be used under the working condition of corrosive media, the transparency is high, and the material condition can be observed conveniently.

In the lab scale process, the current glass reation kettle leads to the visual area limited and the observation in-process light not enough owing to the surrounding type of heat pipe arranges, leads to unable all-round, clearly observing the reaction condition in the observation process. Therefore, the utility model redesigns the existing glass reaction kettle, changes the surrounding heating of the external heat conduction pipe into the heating of the internal vertically inserted heating pipe, and the heating pipes are arranged on the two sides of the inner wall of the glass liner of the kettle body, thereby increasing the visual area of the glass liner of the kettle body and being more convenient for observing the internal reaction of the reaction kettle under the condition of not changing the heat conduction efficiency; 2 windows are arranged and distributed at symmetrical positions on two sides of the protective sleeve, so that sufficient light in the glass liner of the kettle body is ensured during observation, and the material condition in the kettle body can be clearly seen; meanwhile, a conventional feeding pipeline is replaced by a transparent glass pipeline, and the feeding condition of the materials is observed, so that the all-around and accurate observation of the small-test testing process is realized, and the control of the small-test testing process is facilitated. The glass liner and the glass feeding pipe of the kettle body are made of aluminum silicon glass through multiple processes of tempering, and are installed and used after a hydrostatic test, and are put into use after the hydrostatic test, a gas tightness test, complete machine operation and a heating test.

Compared with the prior art, the utility model has the following beneficial effects:

(1) according to the utility model, by changing the heating mode of the reaction kettle, the surrounding heating of the outer part of the inner container of the existing reaction kettle is changed into the heating of the inner container of the reaction kettle by adopting the vertical inserted heating pipe, so that the reaction in the reaction kettle is more visual under the condition of not changing the heat conduction efficiency;

(2) according to the utility model, the feeding pipeline is changed, the conventional feeding pipeline is changed into the transparent glass pipeline, the feeding condition and the reaction process of materials can be observed, and the metal connector is adopted at the joint of the transparent glass pipeline, so that the connection strength of the feeding pipe of the reaction kettle is ensured;

(3) according to the utility model, the protective sleeve of the inner container of the reaction kettle is provided with the plurality of windows, so that the reaction process can be observed more completely, the control of a small-test process is facilitated, and the reaction condition can be observed accurately.

Drawings

FIG. 1 is a schematic view of the internal structure of a small-scale pressure-resistant glass reaction kettle according to the present invention;

FIG. 2 is a schematic view of the external structure of a small-scale pressure-resistant glass reaction vessel according to the present invention;

in the figure: 1. a glass feed tube; 2. a feed inlet; 3. a nitrogen inlet; 4. a stirring device; 5. a pressure gauge; 6. an exhaust port; 7. a vacuum pumping port; 8. a sampling port; 9. a kettle cover; 10. a glass inner container of the kettle body; 11. a protective sleeve; 12. heating a tube; 13. a temperature meter; 14. a heat transfer oil inlet; 15. a discharge port; 16. a heat conducting oil outlet; 17. a viewing window.

Detailed Description

The present invention is further illustrated by the following examples, but the scope of the present invention is not limited thereto.

Example 1

As shown in fig. 1-2, withstand voltage glass reation kettle of lab scale, including kettle cover 9, the internal glass inner bag 10 of kettle, protective sheath 11, agitating unit 4, feed inlet 2 and discharge gate 15, still include the glass inlet pipe 1 that links to each other with the top feed inlet 2 of kettle cover 9 to and set up at the heating pipe 12 of the internal glass inner bag 10 inner wall both sides of kettle and set up a plurality of window 17 on protective sheath 11, heating pipe 12 is vertically arranged back and forth along the internal glass inner bag 10 inner wall both sides of kettle, the position and the heating pipe 12 of window 17 stagger each other.

The kettle body glass liner 10 is provided with a pressure instrument 5 and a temperature instrument 13. The pressure and the temperature in the kettle body in the process of the pilot plant test are detected through the pressure instrument 5 and the temperature instrument 13, so that the regulation and the control are convenient.

The kettle cover 9 is provided with a feeding hole 2, a nitrogen inlet 3, an exhaust port 6, a vacuum pumping port 7 and a sampling port 8. Wherein feed inlet 2 connects glass feed pipe 1, and the junction adopts the metallic interconnect head, guarantees reation kettle glass feed pipe 1's joint strength, changes conventional feed line into transparent glass pipeline, can observe the feeding condition of material, more is favorable to the control of small test process.

The bottom of the kettle body glass liner 10 is provided with a heat conduction oil inlet 14 and a heat conduction oil outlet 16, and the heat conduction oil inlet 14 and the heat conduction oil outlet 16 are respectively connected with two ends of the heating pipe 12. The surrounding type heating of the external heat conduction pipe is changed into the heating of the vertical insertion type heating pipe 12, the visual area of the kettle body glass liner 10 is increased under the condition that the heat conduction efficiency is not changed, and the internal reaction of the reaction kettle can be observed conveniently.

The number of the windows 17 is 2, and the windows are distributed at symmetrical positions on two sides of the protective sleeve 11. In the lab scale experiment process, observe the reaction condition in the reation kettle through window 17, window 17 symmetry in position has ensured that the light in the internal glass inner bag of cauldron 10 is sufficient when observing, can see the internal material condition of cauldron clearly.

The kettle body glass liner 10 and the glass feeding pipe 1 are made of aluminum silicon glass, the bearing working pressure is up to 1.5MPa, the working temperature is up to 200 ℃, the corrosion resistance is high, the kettle body glass liner can be used under the working condition of corrosive media, the transparency is high, and the material condition can be observed conveniently.

In the lab scale process, the current glass reation kettle leads to the visual area limited and the observation in-process light not enough owing to the surrounding type of heat pipe arranges, leads to unable all-round, clearly observing the reaction condition in the observation process. Therefore, the existing glass reaction kettle is redesigned, the surrounding heating of the external heat conduction pipe is changed into the heating of the internal vertical inserted heating pipe 12, the heating pipe 12 is arranged on two sides of the inner wall of the kettle body glass liner 10, the visual area of the kettle body glass liner 10 is increased under the condition of not changing the heat conduction efficiency, and the internal reaction of the reaction kettle is more convenient to observe; 2 windows 17 are arranged and distributed at symmetrical positions on two sides of the protective sleeve 11, so that sufficient light in the glass liner 10 of the kettle body is ensured during observation, and the material condition in the kettle body can be clearly seen; meanwhile, a conventional feeding pipeline is replaced by a transparent glass pipeline, and the feeding condition of the materials is observed, so that the all-around and accurate observation of the small-test testing process is realized, and the control of the small-test testing process is facilitated. The kettle glass liner 10 and the glass feeding pipe 1 are made of aluminum silicon glass through multiple processes of tempering, are installed and used after a hydrostatic test, and are put into use after the hydrostatic test, a gas tightness test, complete machine operation and a heating test.

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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. 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 withstand voltage glass reation kettle of lab scale, includes kettle cover (9), the internal glass inner bag of cauldron (10), protective sheath (11), agitating unit (4), feed inlet (2) and discharge gate (15), its characterized in that: still include the glass inlet pipe (1) that links to each other with kettle cover (9) top feed inlet (2) to and set up heating pipe (12) and a plurality of window (17) of setting on protective sheath (11) in kettle body glass inner bag (10) inner wall both sides, vertical round trip arrangement in kettle body glass inner bag (10) inner wall both sides is followed in heating pipe (12), the position and the heating pipe (12) of window (17) stagger each other.

2. The small-scale pressure-resistant glass reaction kettle according to claim 1, wherein: the kettle body glass liner (10) is provided with a pressure instrument (5) and a temperature instrument (13).

3. The small-scale pressure-resistant glass reaction kettle according to claim 1, wherein: the kettle cover (9) is provided with a feeding hole (2), a nitrogen inlet (3), an exhaust hole (6), a vacuumizing hole (7) and a sampling hole (8).

4. The small-scale pressure-resistant glass reaction kettle according to claim 1, wherein: the bottom of the kettle body glass liner (10) is provided with a heat conduction oil inlet (14) and a heat conduction oil outlet (16), and the heat conduction oil inlet (14) and the heat conduction oil outlet (16) are respectively connected with two ends of the heating pipe (12).

5. The small-scale pressure-resistant glass reaction kettle according to claim 1, wherein: the number of the windows (17) is 2, and the windows are distributed at symmetrical positions on two sides of the protective sleeve (11).

6. The small-scale pressure-resistant glass reaction kettle according to claim 1, wherein: the kettle body glass liner (10) and the glass feeding pipe (1) are made of aluminum-silicon glass.