Reaction kettle capable of conveniently adjusting reaction temperature

Abstract

The utility model provides a reaction kettle convenient for adjusting reaction temperature, belongs to the technical field of cyanate ester processing equipment, and aims to solve the problem that the processing quality of cyano resin is influenced due to non-uniform temperature distribution at the initial stage of heating / cooling the existing reaction kettle. Comprising a reaction kettle main body, a heat insulation outer layer, a temperature control conversion motor, a temperature conversion mechanism and a monitoring driving mechanism, the heat insulation outer layer is fixedly connected to the outer side of the lower part of the reaction kettle main body; the medium inlet pipe is fixedly connected to the upper portion of the inner side of the heat insulation outer layer. The medium discharge pipe is fixedly connected to the lower portion of the inner side of the heat insulation outer layer. The temperature control conversion motor is fixedly connected to the outer side of the heat insulation outer layer; the temperature control conversion piece is arranged on the inner side of the heat insulation outer layer; the temperature control supporting frames are fixedly connected to the upper and lower ends of the inner side of the heat insulation outer layer correspondingly. The temperature conversion mechanism is arranged on the inner side of the heat insulation outer layer; the monitoring driving mechanism is arranged on the inner sides of the two groups of temperature control supporting frames, so that the stability of the prepolymerization process and the product quality are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of cyanate ester processing equipment, and more specifically, it relates to a reaction vessel that facilitates the adjustment of reaction temperature. Background Technology

[0002] In the production and application of high-performance thermosetting resin matrices, cyano resins are widely used in high-end fields such as aerospace due to their excellent properties. Cyano resins usually need to be prepolymerized before use. However, the prepolymerization process is difficult to control: for crystalline cyano resins, prepolymerization needs to eliminate crystallization; for room temperature liquid non-crystalline cyano resins, prepolymerization needs to increase the degree of prepolymerization and molecular weight. Improper temperature control during the prepolymerization process can easily lead to explosive polymerization, resulting in product scrap and equipment damage. Therefore, precise and flexible adjustment of the reaction temperature is crucial for the prepolymerization of cyano resins. Currently, the prepolymerization temperature of cyano resins is generally controlled by a reaction vessel.

[0003] The existing application number CN202411183595.9 discloses a prepolymerization reaction device with rapid switching between hot and cold media, belonging to the field of cyanate ester processing. The device includes a reactor, with a temperature control tube connected to the inner wall of the reactor. The two ends of the temperature control tube are respectively connected to a hot media outlet pipe and a switching box. A cold media inlet pipe is connected to the hot media outlet pipe. Both the hot media outlet pipe and the cold media inlet pipe are equipped with one-way valves. A slider is slidably connected inside the switching box, and the slider is in contact with the inner wall of the switching box. The bottom wall of the switching box is connected to the hot media inlet pipe and the cold media outlet pipe. When the slider slides towards the reactor to its end, the channel connects to the temperature control tube and the hot media inlet pipe; when the slider slides away from the reactor to its end, the channel connects to the temperature control tube and the cold media outlet pipe. This device, through optimized design of the temperature control tube and the introduction of a slider switching mechanism, achieves rapid and precise switching between hot and cold media, providing a more reliable and efficient temperature control solution for cyanate ester prepolymerization reactions.

[0004] Based on the above, existing cyano resin prepolymers are extremely sensitive to temperature uniformity. Crystalline types require uniform crystallization, while amorphous types require precise improvement in prepolymerization degree / molecular weight. Once local overheating / cooling occurs, explosive polymerization and uneven molecular weight distribution are very likely to occur. When using coils to heat the reactor, the temperature impact is large in the near-tube area and lags in the far-tube area, resulting in uneven temperature distribution in the initial stage of heating / cooling the reactor, which affects the processing quality of cyano resin. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a reaction vessel that facilitates temperature adjustment. This solves the problem that when using coils to heat the reaction vessel, the temperature fluctuation near the coil is large, while the temperature lags behind in the far coil, resulting in uneven temperature distribution in the initial stage of heating / cooling the reaction vessel, which affects the processing quality of cyano resin.

[0006] The purpose and effect of this utility model, which provides a reaction vessel for easy adjustment of reaction temperature, are achieved by the following specific technical means:

[0007] A reaction vessel for easy temperature adjustment includes a reaction vessel body, a heat-insulating outer layer, a medium inlet pipe, a medium outlet pipe, a temperature control conversion motor, a temperature control conversion component, a temperature control support frame, a temperature conversion mechanism, and a monitoring and driving mechanism. The heat-insulating outer layer is fixedly connected to the lower outer side of the reaction vessel body. The medium inlet pipe is fixedly connected to the upper inner side of the heat-insulating outer layer. The medium outlet pipe is fixedly connected to the lower inner side of the heat-insulating outer layer. The temperature control conversion motor is fixedly connected to the outer side of the heat-insulating outer layer. The temperature control conversion component consists of a flexible heat-insulating pad and a flexible heat-conducting pad, and is disposed on the inner side of the heat-insulating outer layer. Two sets of temperature control support frames are provided, and the two sets of temperature control support frames are respectively fixedly connected to the upper and lower ends of the inner side of the heat-insulating outer layer. The temperature conversion mechanism is disposed on the inner side of the heat-insulating outer layer. The monitoring and driving mechanism is disposed on the inner side of the two sets of temperature control support frames.

[0008] Furthermore, the temperature conversion mechanism includes a spiral gradient coil; the spiral gradient coil is fixedly connected to the inner side of the heat insulation outer layer, and the upper and lower ends of the spiral gradient coil are respectively connected to the medium inlet pipe and the medium outlet pipe.

[0009] Furthermore, the temperature conversion mechanism also includes a temperature control limiting frame; multiple sets of temperature control limiting frames are provided, and the multiple sets of temperature control limiting frames are respectively fixedly connected to the upper part of the lower set of temperature control support frames. The multiple sets of temperature control limiting frames are arranged in a circumferential array, and the inner side of the temperature control conversion component is in contact with the temperature control limiting frame.

[0010] Furthermore, the temperature conversion mechanism also includes: a first drive gear, a second drive gear, and a conversion drive roller; the first drive gear is rotatably connected to the lower part of the temperature control support frame, and the first drive gear is drively connected to the temperature control conversion motor; the second drive gear is rotatably connected to the lower part of the temperature control support frame, and the second drive gear meshes with the first drive gear; two sets of conversion drive rollers are provided, and the two sets of conversion drive rollers are coaxially fixedly connected to the upper ends of the first drive gear and the second drive gear, respectively, and the two ends of the temperature control conversion component are respectively wrapped around the outer periphery of the conversion drive roller.

[0011] Furthermore, the monitoring drive mechanism includes: a monitoring slide, a monitoring element, and a monitoring reset element; the monitoring slide is slidably connected to the inner side of two sets of temperature control support frames; the monitoring element is an infrared sensor structure, and the monitoring element is provided with a transmitting end and a receiving end, which are respectively fixedly connected to the upper and lower sides of the monitoring slide; the monitoring reset element is an elastic rope structure, one end of the monitoring reset element is fixedly connected to the monitoring slide, and the other end of the monitoring reset element is fixedly connected to the temperature control support frame.

[0012] Furthermore, the monitoring drive mechanism also includes: a first drive pin, a second drive pin, and a third drive pin; the first drive pin is slidably connected to the upper rear end of the monitoring carriage, and a spring structure is fixedly connected to the rear end of the first drive pin; the second drive pin is fixedly connected to the upper end of the temperature control conversion component, and the second drive pin and the first drive pin together form a wedge structure; the third drive pin is fixedly connected to the inner side of an upper set of temperature control support frames, and the third drive pin and the first drive pin together form a wedge structure.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention utilizes a temperature conversion mechanism. When the temperature control conversion motor is turned on, it drives a first drive gear to rotate. This first drive gear then drives a second drive gear, which in turn drives a conversion drive roller. The rotating conversion drive roller surrounds the heat-insulating pad of the temperature control conversion component around the outer circumference of the reactor body. At this time, a cold or hot medium is introduced into the spiral gradient coil. Once the spiral gradient coil temperature is uniform, the temperature control conversion motor is turned on again. This again drives the first drive gear to rotate, which in turn drives the second drive gear. The second drive gear then drives the conversion drive roller, which surrounds the heat-conducting pad of the temperature control conversion component around the outer circumference of the reactor body. Initially, during heating or cooling, the heat-insulating pad provides insulation to prevent uneven temperature distribution in the spiral gradient coil from affecting the materials inside the reactor. Once the spiral gradient coil temperature is uniform, the heat-conducting pad intervenes to achieve uniform heating. This allows for more precise and uniform temperature control within the reactor, effectively meeting the stringent temperature field requirements of cyano resin prepolymerization, reducing the risk of explosive polymerization caused by uneven temperature, and ensuring a stable prepolymerization process and product quality.

[0015] This invention utilizes a monitoring and driving mechanism. A temperature control switching element drives a second driving pin to rotate, which in turn drives a first driving pin to rotate. This rotation of the first driving pin then moves a monitoring slide, which in turn moves a monitoring element. The monitoring element detects the flatness of the outer periphery of the reactor body. When the first driving pin moves to contact a third driving pin, the third driving pin presses against the first driving pin, and the first driving pin is no longer limited by the second driving pin. The monitoring slide then resets under the action of a monitoring and resetting element. This achieves monitoring of the reactor body, enabling timely detection of deformation due to prolonged use and ensuring the stability of the reactor structure. This provides a structural basis for the precise switching of the subsequent temperature control switching element and the uniform temperature control within the reactor, thereby contributing to the stable progress of the cyano resin prepolymerization reaction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the spiral gradient coil structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the second drive gear structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the second drive pin structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the monitoring and reset component of this utility model.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Reactor body; 101. Spiral gradient coil; 102. Temperature control limit frame; 103. First drive gear; 104. Second drive gear; 105. Conversion drive roller; 2. Heat insulation outer layer; 201. Monitoring slide; 202. Monitoring component; 203. Monitoring reset component; 204. First drive pin; 205. Second drive pin; 206. Third drive pin; 3. Medium inlet pipe; 4. Medium outlet pipe; 5. Temperature control conversion motor; 6. Temperature control conversion component; 7. Temperature control support frame. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1:

[0025] As attached Figures 1 to 4 As shown:

[0026] This utility model provides a reaction vessel for easy adjustment of reaction temperature, including a reaction vessel body 1, a heat-insulating outer layer 2, a medium inlet pipe 3, a medium outlet pipe 4, a temperature control conversion motor 5, a temperature control conversion component 6, a temperature control support frame 7, and a temperature conversion mechanism; the heat-insulating outer layer 2 is fixedly connected to the lower outer side of the reaction vessel body 1; the medium inlet pipe 3 is fixedly connected to the upper inner side of the heat-insulating outer layer 2; the medium outlet pipe 4 is fixedly connected to the lower inner side of the heat-insulating outer layer 2; the temperature control conversion motor 5 is fixedly connected to the outer side of the heat-insulating outer layer 2; the temperature control conversion component 6 is composed of a flexible heat-insulating pad and a flexible heat-conducting pad, and is disposed on the inner side of the heat-insulating outer layer 2; two sets of temperature control support frames 7 are provided, and the two sets of temperature control support frames 7 are respectively fixedly connected to the upper and lower ends of the inner side of the heat-insulating outer layer 2; the temperature conversion mechanism is disposed on the inner side of the heat-insulating outer layer 2.

[0027] The temperature conversion mechanism includes a spiral tapered coil 101. The spiral tapered coil 101 is fixedly connected to the inner side of the heat insulation outer layer 2, and the upper and lower ends of the spiral tapered coil 101 are respectively connected to the medium inlet pipe 3 and the medium outlet pipe 4.

[0028] The temperature conversion mechanism also includes a temperature control limit frame 102; multiple sets of temperature control limit frames 102 are provided, and the multiple sets of temperature control limit frames 102 are fixedly connected to the upper part of the lower set of temperature control support frames 7. The multiple sets of temperature control limit frames 102 are arranged in a circumferential array, and the inner side of the temperature control conversion component 6 is in contact with the temperature control limit frame 102.

[0029] The temperature conversion mechanism further includes: a first drive gear 103, a second drive gear 104, and a conversion drive roller 105; the first drive gear 103 is rotatably connected to the lower part of the temperature control support frame 7, and the first drive gear 103 is connected to the temperature control conversion motor 5; the second drive gear 104 is rotatably connected to the lower part of the temperature control support frame 7, and the second drive gear 104 meshes with the first drive gear 103; two sets of conversion drive rollers 105 are provided, and the two sets of conversion drive rollers 105 are coaxially fixedly connected to the upper ends of the first drive gear 103 and the second drive gear 104, respectively, and the two ends of the temperature control conversion component 6 are respectively wrapped around the outer periphery of the conversion drive roller 105.

[0030] The specific usage and function of this embodiment are as follows: When it is necessary to heat up or cool down the reactor, firstly, the temperature control conversion motor 5 is turned on. The temperature control conversion motor 5 drives the first drive gear 103 to rotate. The rotation of the first drive gear 103 drives the second drive gear 104 to rotate. The rotation of the second drive gear 104 drives the conversion drive roller 105 to rotate. The rotation of the conversion drive roller 105 surrounds the heat insulation pad of the temperature control conversion component 6 around the outer periphery of the reactor body 1. At this time, cold or hot medium is introduced into the spiral gradient coil 101. After the temperature of the spiral gradient coil 101 is uniform, the temperature control conversion motor 5 is turned on again. The temperature control conversion motor 5 drives the first drive gear 103 to rotate. The rotation of the first drive gear 103 drives the second drive gear 104 to rotate. The rotation of the second drive gear 104 drives the conversion drive roller 105 to rotate. The rotation of the conversion drive roller 105 surrounds the heat-conducting pad of the temperature control conversion component 6 around the outer periphery of the reactor body 1. At this time, uniform heating of the inside of the reactor body 1 is achieved.

[0031] Example 2:

[0032] This invention provides a reaction vessel that facilitates temperature adjustment, based on Embodiment 1, such as... Figures 1 to 5 As shown, it also includes a monitoring and driving mechanism, which is located inside the two sets of temperature control support frames 7.

[0033] The monitoring drive mechanism includes: a monitoring slide 201, a monitoring component 202, and a monitoring reset component 203; the monitoring slide 201 is slidably connected to the inner side of two sets of temperature control support frames 7; the monitoring component 202 is an infrared sensor structure, and the monitoring component 202 is provided with a transmitting end and a receiving end, which are respectively fixedly connected to the upper and lower sides of the monitoring slide 201; the monitoring reset component 203 is an elastic rope structure, one end of the monitoring reset component 203 is fixedly connected to the monitoring slide 201, and the other end of the monitoring reset component 203 is fixedly connected to the temperature control support frame 7.

[0034] The monitoring drive mechanism also includes: a first drive pin 204, a second drive pin 205, and a third drive pin 206; the first drive pin 204 is slidably connected to the upper rear end of the monitoring carriage 201, and a spring structure is fixedly connected to the rear end of the first drive pin 204; the second drive pin 205 is fixedly connected to the upper end of the temperature control conversion component 6, and the second drive pin 205 and the first drive pin 204 together form a wedge structure; the third drive pin 206 is fixedly connected to the inner side of an upper set of temperature control support frames 7, and the third drive pin 206 and the first drive pin 204 together form a wedge structure.

[0035] The specific usage and function of this embodiment are as follows: When the temperature control conversion component 6 is replaced, the temperature control conversion component 6 drives the second drive pin 205 to rotate. The rotation of the second drive pin 205 drives the first drive pin 204 to rotate. The rotation of the first drive pin 204 drives the monitoring slide 201 to move. The movement of the monitoring slide 201 drives the monitoring component 202 to move. The movement of the monitoring component 202 detects the flatness of the outer periphery of the reactor body 1. When the first drive pin 204 moves to contact the third drive pin 206, the third drive pin 206 presses the first drive pin 204. The first drive pin 204 is no longer limited by the second drive pin 205. The monitoring slide 201 is reset under the action of the monitoring reset component 203, thus realizing the monitoring of the reactor body 1 and avoiding deformation of the reactor body 1 after long-term use.

[0036] The following points should be noted in this article:

[0037] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0038] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0039] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A reaction vessel with easily adjustable reaction temperature, characterized in that: The reactor includes a main body (1), an outer heat insulation layer (2), a medium inlet pipe (3), a medium outlet pipe (4), a temperature control conversion motor (5), a temperature control conversion component (6), a temperature control support frame (7), a temperature conversion mechanism, and a monitoring and driving mechanism. The outer heat insulation layer (2) is fixedly connected to the lower outer side of the main body (1). The medium inlet pipe (3) is fixedly connected to the upper inner side of the outer heat insulation layer (2). The medium outlet pipe (4) is fixedly connected to the lower inner side of the outer heat insulation layer (2). The conversion motor (5) is fixedly connected to the outside of the heat insulation outer layer (2); the temperature control conversion component (6) is composed of two parts: a flexible heat insulation pad and a flexible heat conduction pad, and the temperature control conversion component (6) is set on the inside of the heat insulation outer layer (2); the temperature control support frame (7) is provided in two sets, and the two sets of temperature control support frames (7) are fixedly connected to the upper and lower ends of the inside of the heat insulation outer layer (2); the temperature conversion mechanism is set on the inside of the heat insulation outer layer (2); the monitoring and driving mechanism is set on the inside of the two sets of temperature control support frames (7).

2. The reaction vessel for easy adjustment of reaction temperature as described in claim 1, characterized in that: The temperature conversion mechanism includes a spiral tapered coil (101); the spiral tapered coil (101) is fixedly connected to the inner side of the heat insulation outer layer (2), and the upper and lower ends of the spiral tapered coil (101) are respectively connected to the medium inlet pipe (3) and the medium outlet pipe (4).

3. The reaction vessel for easy adjustment of reaction temperature as described in claim 2, characterized in that: The temperature conversion mechanism also includes a temperature control limiting frame (102); multiple sets of temperature control limiting frames (102) are provided, and multiple sets of temperature control limiting frames (102) are fixedly connected above a lower set of temperature control support frames (7). The multiple sets of temperature control limiting frames (102) are arranged in a circular array, and the inner side of the temperature control conversion component (6) is in contact with the temperature control limiting frame (102).

4. The reaction vessel for easy adjustment of reaction temperature as described in claim 3, characterized in that: The temperature conversion mechanism further includes: a first drive gear (103), a second drive gear (104), and a conversion drive roller (105); the first drive gear (103) is rotatably connected to the lower part of the temperature control support frame (7), and the first drive gear (103) is connected to the temperature control conversion motor (5); the second drive gear (104) is rotatably connected to the lower part of the temperature control support frame (7), and the second drive gear (104) meshes with the first drive gear (103); the conversion drive roller (105) is provided in two sets, and the two sets of conversion drive rollers (105) are coaxially fixedly connected to the upper ends of the first drive gear (103) and the second drive gear (104), respectively, and the two ends of the temperature control conversion component (6) are respectively wrapped around the outer periphery of the conversion drive roller (105).

5. The reaction vessel for easy adjustment of reaction temperature as described in claim 1, characterized in that: The monitoring drive mechanism includes: a monitoring slide (201), a monitoring component (202), and a monitoring reset component (203); the monitoring slide (201) is slidably connected to the inner side of two sets of temperature control support frames (7); the monitoring component (202) is an infrared sensor structure, and the monitoring component (202) is provided with a transmitting end and a receiving end, and the transmitting end and the receiving end of the monitoring component (202) are respectively fixedly connected to the upper and lower sides of the monitoring slide (201); the monitoring reset component (203) is an elastic rope structure, one end of the monitoring reset component (203) is fixedly connected to the monitoring slide (201), and the other end of the monitoring reset component (203) is fixedly connected to the temperature control support frame (7).

6. The reaction vessel for easy adjustment of reaction temperature as described in claim 5, characterized in that: The monitoring drive mechanism further includes: a first drive pin (204), a second drive pin (205), and a third drive pin (206); the first drive pin (204) is slidably connected to the upper rear end of the monitoring carriage (201), and a spring structure is fixedly connected to the rear end of the first drive pin (204); the second drive pin (205) is fixedly connected to the upper end of the temperature control conversion component (6), and the second drive pin (205) and the first drive pin (204) together form a wedge structure; the third drive pin (206) is fixedly connected to the inner side of an upper set of temperature control support frames (7), and the third drive pin (206) and the first drive pin (204) together form a wedge structure.

Images