A reaction kettle for preparing polyol ester
By introducing a stirring motor-driven stirring shaft and an arc-shaped groove design into the reaction vessel for polyol ester preparation, the problems of temperature control and uneven mixing in polyol ester preparation are solved, enabling real-time detection and convenient cleaning, and improving reaction efficiency and vessel life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KELITE ENG DESIGN RES CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing polyol ester preparation process, it is difficult to achieve stable temperature control, the mixing effect is poor, the reaction degree is difficult to detect, and subsequent cleaning is inconvenient.
A reaction vessel for preparing polyol esters was designed. It uses a stirring motor to drive the stirring shaft, which is equipped with a centrally symmetrical stirring plate and a guide port. Combined with the arc-shaped groove on the inner wall of the reaction vessel, it is equipped with a heat insulation layer and an observation port, and has real-time detection and convenient cleaning functions.
It achieves good reaction temperature control, stirring effect and real-time monitoring, improves heat exchange efficiency and extends the service life of the reactor.
Smart Images
Figure CN224405102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyol ester synthesis technology, and in particular to a reaction vessel for preparing polyol esters. Background Technology
[0002] A reaction vessel is a type of reaction equipment. In a broad sense, a reaction vessel is a container where physical or chemical reactions occur. Through structural design and parameter configuration, it achieves the heating, evaporation, cooling, and low-to-high-speed mixing functions required by the process. It is a pressure vessel used to complete processes such as sulfidation, nitration, hydrogenation, verticalization, polymerization, and condensation. When preparing polyols, a reaction vessel with stable temperature control and good mixing effect is required. At the same time, it is difficult to detect the degree of reaction during the reaction process, and subsequent cleaning is also quite troublesome. Utility Model Content
[0003] The purpose of this invention is to provide a reaction vessel for preparing polyol esters, which can improve the overall heat exchange efficiency, has good reaction temperature control performance, achieve good stirring effect, and enable real-time detection and subsequent cleaning of the reaction.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0005] A reaction vessel for preparing polyol esters, characterized in that it comprises a reaction vessel, a stirring motor is provided at the top of the reaction vessel, a stirring shaft is fixedly connected to the output end of the stirring motor inside the reaction vessel, a plurality of centrally symmetrical stirring plates are provided on the stirring shaft inside the reaction vessel, each of the stirring plates has a guide port, a plurality of arc-shaped grooves arranged in a ring array are provided on the inner wall of the reaction vessel, a heat insulation layer is provided in the inner wall jacket of the reaction vessel, the heat insulation layer is filled with a circulating heat insulation liquid, an exhaust port is provided at the top of the reaction vessel, a sample inlet is provided on the upper side wall of the reaction vessel, and a sample outlet is provided at the bottom of the reaction vessel.
[0006] Preferably, a mounting bracket is also fixedly installed on the top of the reactor, the stirring motor is fixedly installed on the mounting bracket, the top of the stirring shaft is rotatably sealed to the top of the reactor, and the output end of the stirring motor is connected to the top of the stirring shaft via a coupling.
[0007] Preferably, the exhaust port is also equipped with a pressure valve connected to an external exhaust pipe.
[0008] Preferably, at least three sets of observation ports are equidistantly arranged on the side wall of the reactor from top to bottom, and an annular cover plate is fixedly installed on each set of observation ports. An observation mirror is sealed between the annular cover plate and the corresponding observation port.
[0009] Preferably, the multiple sets of arc-shaped grooves are arranged at equal intervals.
[0010] Preferably, the stirring shaft is provided with two sets of fixed seats arranged vertically inside the reactor, and a corresponding slot is provided between the two sets of fixed seats. The top and bottom of the stirring plate are limited and locked in the slot.
[0011] Preferably, the adjacent stirring plates are provided with guide ports that are perpendicular to each other, and the guide ports on each set of stirring plates are equidistant from each other.
[0012] Preferably, a maintenance manhole is also provided below the reactor.
[0013] Preferably, the insulation layer is fitted to the arc-shaped groove, an outlet communicating with the insulation layer is provided on the upper part of the outer wall of the reactor, and an inlet communicating with the insulation layer is provided on the lower part of the outer wall of the reactor.
[0014] Preferably, a connecting seat is provided at the bottom of the reactor directly above the discharge port, and the upper part of the connecting seat is rotatably connected to the bottom of the stirring shaft.
[0015] In summary, this utility model has the following beneficial effects:
[0016] 1. This utility model has guide ports that are perpendicular to each other on the stirring plate, which can fully agitate the reaction liquid during the stirring process. At the same time, the arc-shaped groove design on the inner wall of the reaction vessel creates turbulence during the stirring process, achieving a more complete stirring effect.
[0017] 2. By setting multiple observation ports, this utility model can facilitate timely monitoring of the reaction process by staff. At the same time, the provision of maintenance manholes facilitates subsequent cleaning, and the overall service life of the reaction vessel is extended. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 yes Figure 1 A schematic diagram of the structure at point AA. Detailed Implementation
[0020] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.
[0021] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.
[0022] like Figure 1 and 2 The reactor shown is used for preparing polyol esters. It includes a reactor 1, a stirring motor 2 at the top of the reactor 1, and a stirring shaft 3 fixedly connected to the output end of the stirring motor 2 inside the reactor 1. Multiple sets of stirring plates 4 are arranged in a centrally symmetrical manner on the stirring shaft 3 inside the reactor 1. Each set of stirring plates 4 has a guide port 5. Multiple sets of arc-shaped grooves 6 arranged in a ring array are opened on the inner wall of the reactor 1. A heat insulation layer 7 is provided in the inner wall jacket of the reactor 1. The heat insulation layer 7 is filled with a circulating heat insulation liquid. An exhaust port 8 is provided at the top of the reactor 1. A sample inlet 9 is provided on the upper side wall of the reactor 1. A sample outlet 10 is provided at the bottom of the reactor 1.
[0023] A mounting bracket 11 is also fixedly installed on the top of the reactor 1. The stirring motor 2 is fixedly installed on the mounting bracket 11. The top of the stirring shaft 3 is rotated and sealed with the top of the reactor 1. The output end of the stirring motor 2 is connected to the top of the stirring shaft 3 through a coupling 12.
[0024] The exhaust port 8 is also equipped with a pressure valve 13 connected to an external exhaust pipe. By setting the discharge pressure parameters of the pressure valve 13, the gaseous byproducts generated in the reaction can be effectively discharged, avoiding excessive internal pressure and thus preventing danger.
[0025] At least three sets of observation ports 14 are equally spaced from top to bottom on the side wall of the reactor 1. Each set of observation ports 14 is also fixedly installed with an annular cover plate 15. An observation mirror 16 is sealed between the annular cover plate 15 and the corresponding observation port 14. Through the observation mirror 16, the staff can effectively detect the upper, middle and lower liquid levels of the reaction, understand the reaction in real time, and thus quickly adjust the process according to the reaction situation.
[0026] The multiple sets of arc-shaped grooves are equidistantly spaced, which not only achieves a good stirring and turbulence effect, but also increases the overall heat exchange area, shortens the temperature adjustment time, and improves the reaction effect.
[0027] The stirring shaft 3 is provided with two sets of fixed seats 17, one above the other, inside the reactor 1. The two sets of fixed seats 17 are respectively provided with slots between them. The top and bottom of the stirring plate 4 are limited and locked in the slots.
[0028] The adjacent stirring plates 4 are provided with mutually perpendicular guide ports 5. The guide ports 5 on each set of stirring plates 4 are equally spaced. The mutually perpendicular guide ports 5 can drive the reaction liquid to fully turbulently collide, accelerate the stirring and mixing of the overall reaction liquid, and make the mixing effect more complete.
[0029] A maintenance manhole 18 is also provided below the reactor 1, which facilitates subsequent maintenance and overall cleaning of the reactor 1.
[0030] The insulation layer 7 is fitted to the arc-shaped groove 6. An outlet 19 connected to the insulation layer 7 is provided on the upper part of the outer wall of the reactor 1, and an inlet 20 connected to the insulation layer 7 is provided on the lower part of the outer wall of the reactor 1. The insulation layer 7 has more contact surface with the reaction liquid in the reactor 1 through the inner wall of the arc-shaped groove 6, and the heat exchange effect is better.
[0031] A connecting seat 21 is provided at the bottom of the reactor 1 directly above the discharge port 10. The upper part of the connecting seat 21 is rotatably connected to the bottom of the stirring shaft 3.
[0032] This invention features perpendicularly arranged guide ports on the stirring plate, which can fully agitate the reaction liquid during the stirring process. In addition, the arc-shaped groove design on the inner wall of the reactor creates turbulence during the agitation process, achieving a more effective stirring effect.
[0033] This invention, by setting multiple observation ports, allows staff to conveniently monitor the reaction process in a timely manner. At the same time, the inclusion of a maintenance manhole facilitates subsequent cleaning, resulting in a longer overall service life for the reactor.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.
Claims
1. A reaction vessel for preparing polyol esters, characterized in that, The reactor includes a stirring motor mounted on its top. The output end of the stirring motor is fixedly connected to a stirring shaft inside the reactor. Multiple sets of centrally symmetrical stirring plates are mounted on the stirring shaft inside the reactor. Each set of stirring plates has a flow guide port. Multiple sets of arc-shaped grooves arranged in a ring array are formed on the inner wall of the reactor. A heat insulation layer is provided in the inner wall jacket of the reactor, and the heat insulation layer is filled with a circulating heat insulation liquid. An exhaust port is provided on the top of the reactor. An inlet port is provided on the upper side wall of the reactor. An outlet port is provided at the bottom of the reactor.
2. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: A mounting bracket is also fixedly installed on the top of the reactor. The stirring motor is fixedly installed on the mounting bracket. The top of the stirring shaft is rotatably sealed to the top of the reactor. The output end of the stirring motor is connected to the top of the stirring shaft via a coupling.
3. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The exhaust port is also equipped with a pressure valve that connects to an external exhaust pipe.
4. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The side wall of the reactor is provided with at least three sets of observation ports at equal intervals from top to bottom. Each set of observation ports is also fixedly installed with an annular cover plate, and an observation mirror is sealed between the annular cover plate and the corresponding observation port.
5. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The multiple sets of arc-shaped grooves are arranged at equal intervals.
6. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The stirring shaft is provided with two sets of fixed seats, one above the other, inside the reactor. The two sets of fixed seats are respectively provided with slots between them. The top and bottom of the stirring plate are limited and locked in the slots.
7. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The adjacent stirring plates are provided with guide ports that are perpendicular to each other, and the guide ports on each set of stirring plates are equidistant from each other.
8. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: A maintenance manhole is also provided below the reactor.
9. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: The insulation layer is fitted into the arc-shaped groove. An outlet communicating with the insulation layer is provided on the upper part of the outer wall of the reactor, and an inlet communicating with the insulation layer is provided on the lower part of the outer wall of the reactor.
10. The reaction vessel for preparing polyol esters according to claim 1, characterized in that: A connecting seat is provided at the bottom of the reactor directly above the discharge port, and the upper part of the connecting seat is rotatably connected to the bottom of the stirring shaft.