CN214974002U

CN214974002U - Polyether reaction kettle

Info

Publication number: CN214974002U
Application number: CN202121227157.XU
Authority: CN
Inventors: 肖悦; 方云辉; 陈展华; 郭元强; 李乐民
Original assignee: Leizhi Chemical Fujian Co ltd; Kezhijie New Material Group Co Ltd
Current assignee: Leizhi Chemical Fujian Co ltd; Kezhijie New Material Group Co Ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-03
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a polyether reation kettle, including the cauldron body, kettle cover and heat exchange assembly, the cauldron body has built-in reaction chamber and opening, and the kettle cover sets up on the cauldron body, and the kettle cover can seal up the opening, and heat exchange assembly sets up to one or more, and heat exchange assembly can dismantle with the kettle cover and be connected, and heat exchange assembly sets up in the reaction chamber, and heat exchange assembly is used for holding heat transfer medium. This polyether reation kettle can select heat exchange assemblies's quantity according to how much of the reaction material of reaction intracavity to when avoiding reaction material less, heat exchange assemblies do not produce unnecessary energy consumption with reaction material contact part, reduce the extravagant condition of heat transfer medium.

Description

Polyether reaction kettle

Technical Field

The utility model relates to a chemical engineering technical field, in particular to polyether reation kettle.

Background

Polyether is the main raw material of polycarboxylate water reducing agent, and the polyether product variety is less at present, and good heat transfer system can shorten polyether synthetic reaction time and improve the conversion rate of polyether. Therefore, a heat exchange system is arranged in the polyether reaction kettle to shorten the polyether synthesis reaction time and improve the conversion rate of polyether. The heat exchange system needs to exchange heat for the reaction materials in the polyether reaction kettle through a heat exchange medium. However, in the prior art, the heat exchange system is distributed in the whole polyether reaction kettle, and when the reaction materials in the polyether reaction kettle are less, unnecessary heat exchange medium consumption is caused, and the heat exchange medium is wasted.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a polyether reaction kettle to solve the technical problem of wasting heat exchange medium in the prior art.

The utility model provides a pair of polyether reation kettle, include:

the reaction kettle comprises a kettle body, a reaction cavity and an opening, wherein the kettle body is provided with the reaction cavity and the opening;

the kettle cover is arranged on the kettle body and can seal the opening; and

the heat exchange assembly is arranged to be one or more, the heat exchange assembly is detachably connected with the kettle cover, the heat exchange assembly is arranged in the reaction cavity, and the heat exchange assembly is used for accommodating heat exchange media.

Further, heat exchange assembly includes inlet pipe, discharging pipe and heat exchange tube, the inlet pipe with the discharging pipe all with the connection can be dismantled to the kettle cover, the one end of heat exchange tube with the inlet pipe is connected, the other end of heat exchange tube with the discharging pipe is connected, the heat exchange tube set up in the reaction intracavity.

Furthermore, the heat exchange tube is a spiral coil, and a heat exchange medium is communicated with the heat exchange coil through a feed tube, enters the heat exchange coil to the lower part and is discharged from a discharge tube at the upper part.

Further, polyether reation kettle still includes the intake pipe, the intake pipe with the kettle cover is connected, the intake pipe can communicate reaction chamber and external world to make gas can follow the external reaction intracavity that gets into.

Further, polyether reation kettle still includes the check valve, the check valve set up in on the intake pipe, the check valve is used for preventing gas in the reaction chamber passes through the intake pipe is followed the reaction intracavity flows out.

Further, the check valve includes valve body and valve clack, the valve body has air inlet and gas outlet, the air inlet with the gas outlet all with the intake pipe intercommunication, the one end of valve clack is rotated and is set up the top of air inlet, the other end of valve clack can be towards keeping away from the direction of air inlet is rotated, so that the air inlet link up, just the valve clack can be closed so that the air inlet seals relatively.

Further, the cauldron body includes inner bag and shell, inner bag detachably set up in the shell, just the inner bag has the reaction chamber with the opening.

Further, polyether reation kettle still includes the agitator, the agitator runs through the kettle cover and stretches into the reaction intracavity, the agitator is used for stirring the reaction material in the reaction intracavity.

Further, the agitator includes stirring piece and driving piece, the driving piece with the stirring piece is connected, the stirring piece runs through the kettle cover and stretches into in the polyether reation kettle, the driving piece can drive the stirring piece rotates, so that the stirring piece is right in the reaction chamber the reaction material stirs.

Further, the polyether reaction kettle further comprises a pressure measurer, the pressure measurer is connected with the kettle cover, the pressure measurer partially extends into the reaction cavity, and the pressure measurer is used for measuring the air pressure in the reaction cavity.

The utility model provides a pair of polyether reation kettle, including the cauldron body, kettle cover and heat exchange assembly, the cauldron body has reaction chamber and opening, and the kettle cover sets up on the cauldron body, and behind the sealed opening of kettle cover, reaction material takes place to react in the reaction chamber, and heat exchange assembly sets up to one or more, and heat exchange assembly sets up in the reaction chamber, and heat exchange assembly is used for holding heat transfer medium, and consequently, heat exchange assembly can carry out the heat transfer to the reaction material of reaction intracavity. When the reaction material in the reaction cavity is more, a plurality of heat exchange assemblies can be arranged, so that the contact area between the heat exchange medium and the reaction material is increased, the reaction heat exchange efficiency is improved, when the reaction material in the reaction cavity is less, one heat exchange assembly can be arranged, the consumption of the heat exchange medium is reduced, and the heat exchange efficiency in the reaction cavity can not be influenced. Because heat exchange assemblies and kettle cover can dismantle the connection, can select heat exchange assemblies's quantity according to how much of the reaction material of reaction intracavity to when avoiding reaction material less, the extravagant condition of heat transfer medium.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a polyether reactor according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a kettle cover in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the stop valve in the embodiment of the present invention.

The main components are as follows:

10. a polyether reaction kettle; 100. a kettle body; 110. a reaction chamber; 120. an inner container; 130. a housing; 200. a kettle cover; 210. a feed inlet; 220. a discharge port; 230. a solid phase feed inlet; 240. a liquid phase feed inlet; 250. an evacuation valve; 300. a heat exchange assembly; 310. a feed pipe; 320. a discharge pipe; 330. a heat exchange pipe; 400. an air inlet pipe; 500. a check valve; 510. a valve body; 511. an air inlet; 512. an air outlet; 520. a valve flap; 600. a stirrer; 610. a stirring member; 620. a drive member; 700. a pressure measurer.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1, in some embodiments, a polyether reaction kettle 10 includes a kettle body 100, a kettle cover 200 and a heat exchange assembly 300, the kettle body 100 has a reaction chamber 110 and an opening, the kettle cover 200 is disposed on the kettle body 100, the kettle cover 200 can seal the opening, the heat exchange assembly 300 is disposed in one or more of the kettle cover 200, the heat exchange assembly 300 is detachably connected to the kettle cover 200, the heat exchange assembly 300 is disposed in the reaction chamber 110, and the heat exchange assembly 300 is used for accommodating a heat exchange medium. When the reaction materials in the reaction cavity 110 are more, a plurality of heat exchange assemblies 300 can be arranged, so that the contact area between the heat exchange medium and the reaction materials is increased, the reaction heat exchange efficiency is further improved, when the reaction materials in the reaction cavity 110 are less, one heat exchange assembly 300 can be arranged, the consumption of the heat exchange medium is reduced, and the heat exchange efficiency in the reaction cavity 110 cannot be influenced. Because heat exchange assemblies 300 and kettle cover 200 are detachably connected, the number of heat exchange assemblies 300 can be selected according to the amount of reaction materials in reaction chamber 110, so as to avoid the condition that heat exchange media are wasted when the reaction materials are few. In addition, heat exchange assembly 300 and kettle cover 200 can be dismantled and be connected, are convenient for wash heat exchange assembly 300.

Specifically, the heat exchange medium may be a cooling medium or a heating medium. The heat exchange assembly 300 may be a threaded coil or "U" shaped structure.

As shown in fig. 2, in some embodiments, the heat exchange assembly 300 includes a feeding pipe 310, a discharging pipe 320, and a heat exchange pipe 330, wherein the feeding pipe 310 and the discharging pipe 320 are detachably connected to the kettle cover 200, one end of the heat exchange pipe 330 is connected to the feeding pipe 310, the other end of the heat exchange pipe 330 is connected to the discharging pipe 320, the heat exchange pipe 330 is disposed in the reaction chamber 110, and a heat exchange medium is introduced into the heat exchange pipe from the feeding pipe, flows downward and flows upward from the discharging pipe.

Specifically, a feeding hole 210 and a discharging hole 220 are formed in the kettle cover 200, the feeding pipe 310 penetrates through the feeding hole 210 and is detachably connected with the kettle cover 200, and the discharging pipe 320 penetrates through the discharging hole 220 and is detachably connected with the kettle cover 200. The number of the inlet ports 210 corresponds to the number of the inlet pipes 310, and the number of the outlet ports 220 corresponds to the number of the outlet pipes 320.

More specifically, the heat exchange tube 330 is a spiral coil to increase the contact area of the heat exchange tube 330 with the reactant materials.

In some embodiments, the cover 200 defines a solid phase feed inlet 230, and the solid phase material can enter the reaction chamber 110 through the solid phase feed inlet 230.

Specifically, the kettle cover 200 is provided with a liquid phase feed inlet 240, and the liquid phase material can enter the reaction chamber 110 through the liquid phase feed inlet 240.

Further, an evacuation valve 250 is disposed on the kettle cover 200, and the evacuation valve 250 is used for evacuating the reaction chamber 110.

In some embodiments, the polyether reactor 10 further includes an air inlet pipe 400, the air inlet pipe 400 is connected to the kettle cover 200, and the air inlet pipe 400 can communicate the reaction chamber 110 with the outside, so that gas can enter the reaction chamber 110 from the outside.

Polyether reation kettle 10 still includes check valve 500, and check valve 500 sets up on intake pipe 400, and check valve 500 is used for preventing the gas in reaction chamber 110 from flowing out from reaction chamber 110 through intake pipe 400. Specifically, polyether reation kettle 10 still includes the gas inlet tank, and the gas inlet tank is used for holding ethylene oxide. The intake tank is connected to an intake pipe 400. The ethylene oxide in the gas inlet tank enters the reaction chamber 100 through the gas inlet pipe 400. The check valve 500 serves to prevent gas in the reaction chamber 100 from flowing backward into the gas inlet tank through the gas inlet pipe 400. For example, in the polyether reaction process, ethylene oxide enters the reaction chamber 110 through the air inlet pipe 400, when the air pressure in the reaction chamber 110 is too high, the ethylene oxide needs to be stopped from entering the reaction chamber 110, otherwise, reactant flow flows back, the ethylene oxide needs to be continuously input for reaction after the air pressure in the reaction chamber 110 is reduced, the existing polyether reaction process is long in time, a worker needs to observe the air pressure in the reaction chamber 110 constantly, and a large amount of labor cost is wasted. Check valve 500 can be when the atmospheric pressure in reaction chamber 110 is too high meeting automatic stop input ethylene oxide to avoid the reaction material refluence in the reaction chamber 110, pressure drop when waiting for the ethylene oxide reaction in the reaction chamber 110 to accomplish, ethylene oxide continues to get into reaction chamber 110 through check valve 500 in, does not need the staff to observe in real time and detects like this, can save a large amount of costs of labor.

As shown in fig. 3, the check valve 500 includes a valve body 510 and a valve flap 520, the valve body 510 has an air inlet 511 and an air outlet 512, the air inlet 511 and the air outlet 512 are both communicated with the air inlet pipe 400, one end of the valve flap 520 is rotatably disposed above the air inlet 511, the other end of the valve flap 520 is rotatable in a direction away from the air inlet 511 so that the air inlet 511 is penetrated, and the valve flap 520 is closable with respect to the valve flap 520 so that the air inlet 511 is closed.

When the valve works, ethylene oxide enters the valve body 510 through the air inlet 511 and then enters the reaction chamber 110 through the air outlet 512, at this time, the ethylene oxide in the reaction chamber 110 is less, the air pressure in the reaction chamber 110 is lower, the ethylene oxide can break the valve flap 520, one end of the valve flap 520 rotates along the counterclockwise direction above the air inlet 511, so as to drive the other end of the valve flap 520 to rotate towards the direction far away from the air inlet 511, the air inlet 511 is communicated, after the ethylene oxide continuously enters the reaction chamber 110, the ethylene oxide reacts, the air pressure in the reaction chamber 110 rises, so that one end of the flap 520 rotates clockwise above the air inlet 511 to drive the other end of the flap 520 to rotate towards the direction close to the air inlet 511, the flap 520 can close against the flap 520 to close the air inlet 511, so that the ethylene oxide can not enter the reaction chamber 110, and the situation that the reaction material flows backwards due to overlarge air pressure in the reaction chamber 110 is also avoided.

In some embodiments, the kettle body 100 includes an inner container 120 and an outer casing 130, the inner container 120 is detachably disposed in the outer casing 130, the inner container 120 has a reaction chamber 110 and an opening, and the product after the reaction of the inner container 120 is completed can be directly poured out through the inner container 120.

Specifically, polyether reation kettle 10 still includes agitator 600, and agitator 600 runs through kettle cover 200 and stretches into in reaction chamber 110, and agitator 600 is used for stirring the reaction mass in reaction chamber 110 to improve the reaction rate between the reaction mass.

More specifically, stirrer 600 includes stirring member 610 and driving member 620, driving member 620 is connected to stirring member 610, stirring member 610 penetrates through kettle cover 200 and extends into polyether reaction kettle 10, and driving member 620 can drive stirring member 610 to rotate, so that stirring member 610 can stir the reaction material in reaction chamber 110.

In some embodiments, the polyether reactor 10 further comprises a pressure measuring device 700, the pressure measuring device 700 is connected to the kettle cover 200, and the pressure measuring device 700 partially extends into the reaction chamber 110, and the pressure measuring device 700 is used for measuring the gas pressure in the reaction chamber 110. The pressure measurer 700 may be, but is not limited to, a pressure gauge.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A polyether reaction kettle, comprising:

the kettle cover is arranged on the kettle body and can seal the opening; and

2. The polyether reaction kettle of claim 1, wherein the heat exchange assembly comprises a feeding pipe, a discharging pipe and a heat exchange pipe, the feeding pipe and the discharging pipe are detachably connected with the kettle cover, one end of the heat exchange pipe is connected with the feeding pipe, the other end of the heat exchange pipe is connected with the discharging pipe, and the heat exchange pipe is arranged in the reaction cavity.

3. The polyether reactor of claim 2, wherein the heat exchange tube is helical.

4. The polyether reaction kettle of claim 1, further comprising an air inlet pipe, wherein the air inlet pipe is connected with the kettle cover, and the air inlet pipe can communicate the reaction cavity with the outside so that air can enter the reaction cavity from the outside.

5. The polyether reactor of claim 4, further comprising a check valve disposed on the gas inlet tube, wherein the check valve is configured to prevent gas in the reaction chamber from flowing out of the reaction chamber through the gas inlet tube.

6. The polyether reactor of claim 5, wherein the check valve comprises a valve body and a valve flap, the valve body has an air inlet and an air outlet, the air inlet and the air outlet are both communicated with the air inlet pipe, one end of the valve flap is rotatably disposed above the air inlet, the other end of the valve flap can rotate in a direction away from the air inlet, so that the air inlet is communicated, and the valve flap can be closed relative to the valve flap to seal the air inlet.

7. The polyether reactor of claim 1, wherein the kettle body comprises an inner container and a housing, the inner container is detachably disposed in the housing, and the inner container has the reaction chamber and the opening.

8. The polyether reactor of claim 1, further comprising a stirrer extending through the cover and into the reaction chamber, wherein the stirrer is configured to stir the reaction materials in the reaction chamber.

9. The polyether reactor of claim 8, wherein the agitator comprises an agitator member and a driving member, the driving member is connected to the agitator member, the agitator member extends through the cover and into the polyether reactor, and the driving member can drive the agitator member to rotate, so that the agitator member agitates the reaction material in the reaction chamber.

10. The polyether reactor of claim 1, further comprising a pressure gauge, wherein the pressure gauge is connected to the kettle cover and partially extends into the reaction chamber, and the pressure gauge is configured to measure the pressure in the reaction chamber.