Coil pipe heating reaction kettle

Abstract

The utility model discloses a coil pipe heating reaction kettle, which belongs to the technical field of stirring heating equipment and comprises a kettle body, a coil pipe is arranged in the kettle body and comprises a plurality of vertical pipes arranged along the axial direction of the kettle body, the upper ends or the lower ends of two adjacent vertical pipes are communicated, the whole vertical pipes are in a shape like a Chinese character'gong ', and a coil pipe inlet is arranged on the upper portion of the kettle body. A coil pipe outlet is formed in the lower part of the kettle body; and the coil pipe inlet and the coil pipe outlet are communicated with the coil pipe. According to the coil heating reaction kettle disclosed by the utility model, the coil shaped like the Chinese character'gong 'is arranged on the inner wall of the kettle body along the axial direction of the kettle body, so that the laying area of the coil can be increased, the aim of rapid heating is fulfilled, and the whole coil surrounds the periphery of the inner wall of the kettle body, so that the kettle body can be heated more uniformly; the vertical position of the temperature measuring probe is controlled through the lifting of the piston rod, so that the temperature measuring probe can be positioned in the middle of the reaction liquid regardless of the height of the liquid level in the reaction kettle, and the temperature measurement is more accurate.

Description

Technical Field

[0001] This utility model belongs to the field of reaction vessel technology, specifically a coil-heated reaction vessel. Background Technology

[0002] A reaction vessel is a container used for physical or chemical reactions. Through structural design and parameter configuration, it achieves the heating, evaporation, cooling, and low-to-high-speed mixing functions required by the process. Traditional heating reaction vessels use spiral coil heating. On the one hand, due to the limited space inside the reaction vessel and the limited surface area of ​​the spiral coil, rapid heating can only be achieved by increasing the flow rate. On the other hand, spiral coils typically use a bottom inlet for hot water or steam and an outlet for water or steam. Because the hot water or steam enters from the bottom without heat exchange, the temperature in the lower part of the reaction vessel is always higher than the upper part, and the temperature decreases further up the vessel. Therefore, existing spiral reaction vessels cannot achieve rapid and uniform heating. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a coil-heated reaction vessel. By setting "bow"-shaped coils along the axial direction of the vessel body on the inner wall of the vessel body, the coil laying area can be increased. On the one hand, it can achieve the purpose of rapid heating. On the other hand, the time for hot water or hot steam to flow through any vertical pipe is shorter, which can make the upper and lower parts of the reaction liquid in the vessel body more uniformly heated.

[0004] To solve the above-mentioned technical problems, this utility model provides a coil-heated reaction vessel, including a vessel body, a coil inside the vessel body, the coil including several vertical tubes arranged along the axial direction of the vessel body, the upper or lower ends of two adjacent vertical tubes are connected, forming an overall "bow" shape, the upper part of the vessel body is provided with a coil inlet, the lower part of the vessel body is provided with a coil outlet, and both the coil inlet and the coil outlet are connected to the coil.

[0005] As a further description of the above technical solution, there are two sets of coils, which are respectively located in the upper and lower parts of the vessel body, and the coil inlets and outlets of the two sets of coils are staggered.

[0006] As a further description of the above technical solution, the vessel body is also provided with a temperature measuring component. The temperature measuring component includes a piston cylinder fixed to the top of the vessel body, a piston rod movably inserted into the piston cylinder, a piston at the lower end of the piston rod, the bottom end of the piston rod being fixedly connected to the top of the temperature sensor, and a temperature measuring probe at the bottom of the temperature sensor extending into the vessel body. The temperature sensor can rise and fall synchronously with the piston rod.

[0007] As a further description of the above technical solution, the piston cylinder has an air hole at its lower end, and a sealing ring is provided between the piston cylinder and the vessel body.

[0008] As a further description of the above technical solution, a handle is also provided at the end of the piston rod.

[0009] As a further description of the above technical solution, the upper end of the vessel body is provided with a feed inlet and the lower end with a discharge outlet.

[0010] As a further description of the above technical solution, a viewing window and an inspection port are provided in the middle of the vessel body.

[0011] As a further description of the above technical solution, the vessel body is provided with a heat-insulating jacket.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0013] (1) Setting a “bow” shaped coil along the axis of the vessel on the inner wall of the vessel can increase the coil laying area. On the one hand, it can achieve the purpose of rapid heating. On the other hand, the entire coil surrounds the inner wall of the vessel, which can make the vessel heat more evenly.

[0014] (2) A set of coils is set in the upper and lower parts of the vessel body, and the coil inlet and coil outlet of the two sets of coils are staggered. This can further eliminate the temperature difference between the upper and lower parts of the vessel body, and the two sets of coils can be controlled separately to keep the temperature of the upper part of the vessel body constant, prevent the evaporated gas from liquefying when it is cooled, and meet the requirements of fine reaction.

[0015] (3) A temperature measuring component is installed on the reactor body, and the up and down position of the temperature measuring probe is controlled by the lifting and lowering of the piston rod, so that the temperature measuring probe can be in the middle position of the reaction liquid regardless of the liquid level in the reactor, making the temperature measurement more accurate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the coil-heated reactor in Example 1;

[0017] Figure 2 yes Figure 1 Enlarged view of the middle M section;

[0018] Figure 3 This is a schematic diagram of the external structure of the coil-heated reactor in Example 1;

[0019] Figure 4 This is a schematic diagram of the internal structure of the coil-heated reactor in Example 2.

[0020] Legend:

[0021] 100 - Vessel body; 110, 110a, 110b - Coil; 111, 111a, 111b - Coil inlet; 112, 112a, 112b - Coil outlet; 120 - Temperature measuring component; 121 - Handle; 122 - Piston cylinder; 123 - Piston rod; 124 - Sealing ring; 125 - Vent; 126 - Temperature sensor; 130 - Feed inlet; 140 - Discharge outlet; 150 - Viewing window; 160 - Inspection port; 170 - Insulation jacket. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] A coil-heated reactor, such as Figure 1 — Figure 4 As shown, it includes a vessel body 100, with a feed inlet 130 at the upper end and a discharge outlet 140 at the lower end. A viewing window 150 and an inspection port 160 are provided in the middle of the vessel body 100, and an insulation jacket 170 is provided outside the vessel body 100.

[0025] The vessel body 100 is equipped with a coil 110. The coil 110 includes several vertical tubes along the axial direction of the vessel body 100 and arranged on the inner wall of the vessel body 100. The upper or lower ends of adjacent vertical tubes are connected by bends, forming an overall "bow" shape. The upper part of the vessel body 100 is provided with a coil inlet 111, and the lower part of the vessel body 100 is provided with a coil outlet 112. Both the coil inlet 111 and the coil outlet 112 are connected to the coil 110.

[0026] By installing a "bow"-shaped coil 110 along the axial direction of the vessel body 100 on the inner wall of the vessel body 100, the laying area of ​​the coil 110 can be increased. On the one hand, it can achieve the purpose of rapid heating, and on the other hand, hot water or hot steam that has not undergone heat exchange can quickly reach the upper and lower ends of the vertical tube, so that the temperature of the upper and lower ends of the vertical tube is the same, and the temperature of the upper and lower parts of the reaction liquid in the vessel body 100 is kept consistent.

[0027] The vessel body 100 is also equipped with a temperature measuring component 120. The temperature measuring component 120 includes a piston cylinder 122 fixed to the top of the vessel body 100. A sealing ring 124 is provided between the piston cylinder 122 and the outer wall of the vessel body 100. A piston rod 123 is movably inserted into the piston cylinder 122. The lower end of the piston rod 123 has a piston. The piston and the piston cylinder 122 are tightly slidably engaged. The lower end of the piston cylinder 122 has an air hole 125 to facilitate air intake when the piston rod 123 is raised or air exhaust when it is pushed down. The end of the piston rod 123 is also provided with a handle 121 to facilitate the lifting or pushing operation of the piston rod 123. The bottom end of the piston rod 123 is fixedly connected to the top of the temperature sensor 126. The temperature measuring probe at the bottom of the temperature sensor 126 extends into the vessel body 100. The temperature sensor 126 can rise and fall synchronously with the piston rod 123, so that the temperature measuring probe can always be inserted into the middle of the liquid, making the temperature measurement more accurate.

[0028] Example 2

[0029] In this embodiment, two sets of coils 110a and 110b are installed inside the vessel body 100. The two sets of coils 110a and 110b are respectively located in the upper and lower halves of the vessel body 100. Correspondingly, the vessel body 100 is provided with two coil inlets 111a and 111b and two coil outlets 112a and 112b. One set of coil inlets 111a and the other set of coil outlets 112b are located on the same side of the vessel body 100, while the other set of coil inlets 111b and the other set of coil outlets 112a are located on the other side of the vessel body 100. This arrangement method... In this configuration, when both sets of coils 110a and 110b are controlled simultaneously, hot water or steam with higher heat that has not undergone heat exchange enters from both sides of the vessel 100 and rapidly exchanges heat, making the reaction liquid inside the vessel 100 more evenly heated. On the other hand, when the reactor is used for reaction operations that generate gas (volatile gases of some substances), the two sets of coils 110a and 110b can also be controlled separately to send hot water or steam with a higher temperature into the upper coil 110b, so that the generated gas is quickly discharged and the gas is prevented from liquefying upon cooling at the top.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of this utility model.

Claims

1. A coil-heated reaction vessel, comprising a vessel body (100), wherein a coil (110) is disposed within the vessel body (100), characterized in that: The coil (110) includes several vertical tubes arranged along the axis of the vessel body. The upper or lower ends of two adjacent vertical tubes are connected, forming an "arch" shape. The vessel body (100) has a coil inlet (111) at the upper part and a coil outlet (112) at the lower part. Both the coil inlet (111) and the coil outlet (112) are connected to the coil (110).

2. The coil-heated reactor as described in claim 1, characterized in that: The coil (110) has two sets, which are respectively located in the upper and lower parts of the vessel body (100). The coil inlet (111) and coil outlet (112) of the two sets of coils (110) are staggered.

3. The coil-heated reactor as described in claim 1 or 2, characterized in that: The vessel body (100) is also provided with a temperature measuring component (120). The temperature measuring component (120) includes a piston cylinder (122) fixed to the top of the vessel body (100). A piston rod (123) is movably inserted into the piston cylinder (122). The lower end of the piston rod (123) has a piston. The piston rod (123) is fixedly connected to a temperature sensor (126). The temperature probe at the bottom of the temperature sensor (126) extends into the vessel body (100). The temperature sensor (126) can rise and fall synchronously with the piston rod (123).

4. The coil-heated reactor as described in claim 3, characterized in that: The piston cylinder (122) has an air hole (125) at the lower end, and a sealing ring (124) is provided between the piston cylinder (122) and the vessel body (100).

5. The coil-heated reactor as described in claim 3 or 4, characterized in that: The piston rod (123) is also provided with a handle (121) at its end.

6. The coil-heated reactor as described in claim 3, characterized in that: The upper end of the vessel body (100) is provided with a feed inlet (130), and the lower end is provided with a discharge outlet (140).

7. The coil-heated reactor as described in claim 6, characterized in that: The vessel body (100) is provided with a viewing window (150) and an inspection port (160) in the middle.

8. The coil-heated reactor as described in claim 7, characterized in that: The vessel body (100) is provided with an insulation jacket (170).

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