Energy-saving multi-section vortex heating reaction kettle

Abstract

This utility model discloses an energy-saving reactor with multi-stage eddy current heating, relating to the field of reactors. The energy-saving reactor with multi-stage eddy current heating includes a tank body, and further includes: a sealing cover, detachably connected to the tank body; a heat-insulating cavity, disposed between the inner and outer walls of the tank body; a spirally arranged guide plate, disposed within the heat-insulating cavity and integrally formed with the tank body; and a pressure relief pipe disposed on the sealing cover, one end of which is connected to the tank body, and the other end of which is connected to the upper end of the heat-insulating cavity. In this utility model, high-pressure gas inside the tank is released into the heat-insulating cavity, guided by the spirally arranged guide plate, extending its residence time in the heat-insulating cavity, allowing for sufficient heat exchange with the outer wall of the tank body, achieving heat recovery, and reducing heat loss from the tank body to the outside. Simultaneously, improved sealing performance also reduces heat loss, and the heat energy converted from electrical energy by the electric heating plate is more concentrated on the material, improving energy utilization and achieving energy-saving effects.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, specifically, it relates to an energy-saving reaction vessel with multi-stage eddy current heating. Background Technology

[0002] In the production processes of industries such as chemical, pharmaceutical, and food, reaction vessels are the core equipment for realizing processes such as material mixing, reaction, and heating. Their heating efficiency and energy utilization level are directly related to production costs and production benefits. High-efficiency, energy-saving, and stable reaction vessels can promote the full progress of the reaction, ensure product quality, and meet the industry's needs for green and sustainable development.

[0003] However, existing reactors still have the following defects in the heating and heat preservation process. On the one hand, traditional heating methods (such as steam heating and thermal oil heating) have low heat transfer efficiency, and heat is easily lost in large quantities in the transfer path. Secondary energy utilization leads to limited thermal efficiency and energy waste. On the other hand, the reactor has poor sealing structure, and heat is easily leaked from the seal during heating. Moreover, there is no effective mechanism for recovering and utilizing the heat of high-pressure gas generated by the reaction. The heat inside the tank is seriously lost to the outside, so the energy input by electric heating and other methods cannot be concentrated on the material, resulting in low energy utilization. In view of this, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an energy-saving reactor with multi-stage vortex heating that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] An energy-saving reactor with multi-stage eddy current heating includes a tank body and further includes: a sealing cover, detachably connected to the tank body; a heat preservation cavity, disposed between the inner and outer walls of the tank body; a spirally arranged guide plate, disposed within the heat preservation cavity and integrally formed with the tank body; a pressure relief pipe disposed on the sealing cover, one end of which is connected to the tank body and the other end of which is connected to the upper end of the heat preservation cavity, wherein the lower end of the heat preservation cavity has an exhaust hole, and a pressure relief valve is provided on the pressure relief pipe; a sealing ring, fixedly connected to the sealing cover; a ring-shaped sealing gasket, connected to the outer wall of the sealing ring and fitting against the inner wall of the tank body; a ring-shaped air bladder, embedded in the outer wall of the sealing ring, wherein when the air bladder expands, it can compress the sealing gasket and fit tightly against the inner wall of the tank body; and a heating unit disposed within the tank body.

[0007] For use in supplying gas into the airbag, preferably, the tank is provided with a gas supply pipe that communicates with the vent hole, the end of the gas supply pipe away from the vent hole is connected to the airbag, and a one-way valve is provided on the gas supply pipe.

[0008] To maintain a constant air pressure inside the airbag, the sealing cover is further provided with a second pressure relief pipe connected to the airbag. The second pressure relief pipe is equipped with a pressure relief valve, and an exhaust pipe is fixedly connected to the second pressure relief pipe. The exhaust pipe is equipped with a valve switch.

[0009] Preferably, the heating unit includes an electric heating plate, which is embedded in the bottom of the tank.

[0010] To improve the sealing performance at the connection between the sealing cap and the tank body, preferably, multiple sealing grooves are provided on the upper inner wall of the tank body. The sealing grooves are arranged in a ring shape. When the airbag squeezes the sealing gasket tightly against the inner wall of the tank body, the compressed sealing gasket deforms and embeds itself into the sealing groove.

[0011] To reduce material residue at the bottom of the tank, preferably, the inner wall of the bottom of the tank is conical, and a discharge pipe is fixedly connected to the bottom of the tank. A control valve is installed on the discharge pipe to control the opening and closing of the discharge pipe.

[0012] To facilitate the installation and removal of the sealing cap, preferably, the sealing cap is detachably connected to the tank body by multiple fixing bolts.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] In this invention, high-pressure gas inside the tank is released into the insulation cavity and guided by a spiral guide plate, extending its residence time in the insulation cavity and allowing for full heat exchange with the outer wall of the tank, thus achieving heat recovery and reducing heat loss from inside the tank to the outside. At the same time, the improved sealing performance also reduces heat loss, and the heat energy converted from the electrical energy of the electric heating plate is more concentrated on the material, improving energy utilization and achieving energy-saving effects. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the tank body and sealing cap of this utility model. Figure 1 ;

[0016] Figure 2 This is a cross-sectional view of the tank body and sealing cap of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model;

[0018] Figure 4 This is a utility model Figure 1Enlarged view of part A in the middle.

[0019] In the diagram: 1. Tank body; 101. Sealing cover; 102. Discharge pipe; 103. Electric heating plate; 2. Insulation chamber; 201. Guide plate; 202. Pressure relief pipe one; 3. Sealing ring; 301. Sealing gasket; 4. Airbag; 401. Sealing groove; 402. Gas supply pipe; 403. Pressure relief pipe two; 404. Exhaust pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] Example 1

[0022] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 An energy-saving reactor with multi-stage eddy current heating includes a tank body 1, and further includes: a sealing cover 101, detachably connected to the tank body 1; a heat preservation cavity 2, disposed between the inner and outer walls of the tank body 1; a spirally arranged guide plate 201, disposed in the heat preservation cavity 2 and integrally formed with the tank body 1; a pressure relief pipe 202 disposed on the sealing cover 101, one end of which is connected to the tank body 1 and the other end is connected to the upper end of the heat preservation cavity 2, wherein the lower end of the heat preservation cavity 2 has an exhaust hole, and a pressure relief valve is provided on the pressure relief pipe 202; a sealing ring 3, fixedly connected to the sealing cover 101; a ring-shaped sealing gasket 301, connected to the outer wall of the sealing ring 3 and fitting against the inner wall of the tank body 1; a ring-shaped airbag 4, embedded in the outer wall of the sealing ring 3, wherein when the airbag 4 expands, it can compress the sealing gasket 301 to fit tightly against the inner wall of the tank body 1; and a heating unit disposed inside the tank body 1.

[0023] The tank body 1 is provided with a gas supply pipe 402 that is connected to the exhaust port. The end of the gas supply pipe 402 away from the exhaust port is connected to the air bag 4. A one-way valve is provided on the gas supply pipe 402.

[0024] The heating unit includes an electric heating plate 103, which is embedded in the bottom of the tank body 1.

[0025] The sealing cover 101 is provided with a pressure relief pipe 403 connected to the airbag 4. The pressure relief pipe 403 is provided with a pressure relief valve. The pressure relief pipe 403 is fixedly connected to the exhaust pipe 404. The exhaust pipe 404 is provided with a valve switch.

[0026] The bottom inner wall of the tank body 1 is conical, and a discharge pipe 102 is fixedly connected to the bottom of the tank body 1. A control valve is installed on the discharge pipe 102 to control the opening and closing of the discharge pipe 102.

[0027] The sealing cap 101 is detachably connected to the tank body 1 by multiple fixing bolts.

[0028] During use, the operator adds the materials required for the reaction into the tank through the opening of the tank 1, and then uses multiple fixing bolts to install the sealing cover 101 onto the tank 1. At this time, the sealing gasket 301 initially adheres to the inner wall of the tank 1, reducing the loss of heat inside the tank 1 during subsequent heating. The electric heating plate 103 is then started to heat the materials in the tank 1, gradually raising the material temperature to the temperature required for the reaction.

[0029] The electric heating plate 103 converts electrical energy into heat energy and transfers heat to the material through the bottom of the tank 1. As heating proceeds, the temperature inside the tank 1 gradually increases, and the material undergoes a chemical reaction. In some cases, this is accompanied by gas generation or volume expansion, which causes the pressure inside the tank to gradually increase. When the pressure inside the tank 1 exceeds the pressure relief valve set on the pressure relief pipe 202, the pressure relief valve automatically opens, and some high-pressure gas is released into the insulation chamber 2 through the pressure relief pipe 202. The gas entering the insulation chamber 2 is transported to the air bladder 4 through the gas delivery pipe 402. As gas continues to enter, the air bladder 4 gradually expands, squeezing the sealing gasket 301 to make it fit more tightly against the inner wall of the tank 1, enhancing the sealing performance of the connection between the sealing cover 101 and the tank 1, and further reducing heat loss.

[0030] After the high-temperature gas enters the insulation chamber 2, it flows along a spiral path under the guidance of the spiral guide plate 201, which prolongs the residence time of the gas in the insulation chamber 2, allowing the high-temperature gas to fully exchange heat with the outer wall of the tank 1, improving the insulation effect and reducing the loss of heat from the tank to the outside.

[0031] If the pressure inside the airbag 4 is too high and exceeds the set value of the pressure relief valve on the pressure relief pipe 403, the pressure relief valve will automatically open to release some gas, so that the pressure inside the airbag 4 remains constant. At the same time, the operator can also flexibly control the pressure inside the airbag 4 by adjusting the valve switch of the exhaust pipe 404, thereby adjusting the tightness of the seal 301 against the inner wall of the tank 1 to meet the needs of different reaction stages.

[0032] After the reaction is complete, turn off the electric heating plate 103 to stop heating. The material in the tank 1 will cool down naturally or by other cooling methods. After the pressure in the tank 1 drops to a safe range, open the valve switch of the exhaust pipe 404 to release the gas in the air bag 4, so that the sealing gasket 301 returns to its initial state and relieves the pressure on the inner wall of the tank 1. Then remove the fixing bolts, remove the sealing cover 101, and open the control valve on the discharge pipe 102. Since the inner wall of the bottom of the tank 1 is conical, the material will be discharged smoothly through the discharge pipe 102 under the action of gravity. After the material is discharged, the inside of the tank 1 can be cleaned.

[0033] In summary, the spiral guide plate 201 inside the insulation cavity 2 prolongs the heat exchange time, makes full use of the waste heat of the high-temperature gas, reduces energy waste, effectively reduces the heat loss of the reactor during the heating process, and improves the energy utilization rate.

[0034] The pressure energy released from the tank 1 is converted into the expansion force of the airbag 4 through the gas pipe 402 to strengthen the seal, avoid the direct waste of pressure energy, realize the recovery and reuse of energy, and further improve the energy saving effect.

[0035] The high-pressure gas inside the tank is released into the insulation chamber 2 and guided by the spiral guide plate 201, extending the residence time in the insulation chamber 2 and fully exchanging heat with the outer wall of the tank body 1 to achieve heat recovery and reduce the loss of heat from the tank to the outside. At the same time, the improved sealing performance also reduces heat loss. The heat energy converted from the electric heating plate 103 is more concentrated on the material, improving energy utilization and achieving energy-saving effect.

[0036] It should be noted that both the pressure relief pipe 202 and the gas supply pipe 402 are flexible and retractable hoses. Therefore, neither the pressure relief pipe 202 nor the gas supply pipe 402 will interfere with the installation or removal of the sealing cap 101.

[0037] Example 2

[0038] Reference Figure 4 An energy-saving reactor with multi-stage eddy current heating is basically the same as that in Example 1. Furthermore, multiple sealing grooves 401 are provided on the upper inner wall of the tank body 1. The sealing grooves 401 are arranged in a ring shape. When the airbag 4 squeezes the sealing gasket 301 to fit tightly against the inner wall of the tank body 1, the compressed sealing gasket 301 deforms and is embedded in the sealing groove 401.

[0039] When the inflated airbag 4 squeezes the sealing gasket 301 to fit tightly against the tank body 1, the sealing gasket 301 is deformed by the compression and embedded in the sealing groove 401, forming multiple seals, which further increases the sealing performance at the connection between the sealing cover 101 and the tank body 1, and effectively reduces the loss of heat inside the tank body 1 during the heating process.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. An energy-saving reactor with multi-stage eddy current heating, comprising a tank body (1), characterized in that, Also includes: The sealing cap (101) is detachably connected to the tank body (1); The heat-insulating cavity (2) is disposed between the inner and outer walls of the tank body (1); A spiral-shaped guide plate (201) is disposed inside the heat preservation cavity (2) and is integrally formed with the tank body (1); The pressure relief pipe 1 (202) is installed on the sealing cover (101), one end of which is connected to the tank body (1) and the other end is connected to the upper end of the heat preservation cavity (2). The lower end of the heat preservation cavity (2) is provided with an exhaust hole, and the pressure relief pipe 1 (202) is provided with a pressure relief valve. A sealing ring (3) is fixedly connected to the sealing cover (101); A ring-shaped sealing gasket (301) is connected to the outer wall of the sealing ring (3) and fits against the inner wall of the tank body (1); An airbag (4) arranged in a ring shape is embedded in the outer wall of the sealing ring (3). When the airbag (4) expands, it can squeeze the sealing gasket (301) to fit tightly against the inner wall of the tank (1). A heating unit is installed inside the tank (1).

2. The energy-saving reactor with multi-stage eddy current heating according to claim 1, characterized in that, The tank (1) is provided with a gas supply pipe (402) connected to the exhaust port. The end of the gas supply pipe (402) away from the exhaust port is connected to the air bag (4). A one-way valve is provided on the gas supply pipe (402).

3. A multi-stage energy efficient reaction vessel with eddy current heating as claimed in claim 2, wherein The sealing cover (101) is provided with a pressure relief pipe (403) connected to the airbag (4), the pressure relief pipe (403) is provided with a pressure relief valve, the pressure relief pipe (403) is fixedly connected with an exhaust pipe (404), and the exhaust pipe (404) is provided with a valve switch.

4. The multi-stage energy efficient reaction vessel with eddy current heating as claimed in claim 1 wherein, The heating unit includes an electric heating plate (103), which is embedded in the bottom of the tank (1).

5. The multi-stage energy efficient reaction vessel with eddy current heating as claimed in claim 1 wherein, Multiple sealing grooves (401) are provided on the upper inner wall of the tank (1). The sealing grooves (401) are arranged in a ring shape. When the airbag (4) squeezes the sealing pad (301) and fits tightly against the inner wall of the tank (1), the compressed sealing pad (301) deforms and is embedded in the sealing groove (401).

6. The multi-stage, energy efficient reaction vessel with eddy current heating of claim 1, wherein, The bottom inner wall of the tank (1) is conical, and the bottom of the tank (1) is fixedly connected to a discharge pipe (102). A control valve is provided on the discharge pipe (102), and the control valve is used to control the opening and closing of the discharge pipe (102).

7. The multi-stage energy efficient reaction vessel with eddy current heating as claimed in claim 1 wherein, The sealing cap (101) is detachably connected to the tank body (1) by multiple fixing bolts.

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