JP2019069419A - Baffle plate for reaction tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separately form a nozzle in a reaction vessel, or a nozzle to be formed, even when a device having a different function is provided in the reaction vessel provided with a stirrer and a baffle plate for the reaction vessel. Provided is a baffle plate for a reaction tank capable of reducing the number of nozzles. SOLUTION: An elongated baffle plate having an outer surface glass-lined and a hollow inside, which is inserted into the reaction vessel through a nozzle formed in the reaction vessel, has a base end side at the edge of an opening of the nozzle. It is supported by a portion, the tip side is inserted into the reaction vessel, and internally, it is provided with a plurality of inner tubes used for different functions, extending from the proximal end side toward the tip side, and among the plurality of inner tubes. The inner surface of at least one inner tube is coated with glass. [Selection diagram] Fig. 2

Description

  The present invention relates to a baffle plate for a reaction vessel provided in a reaction vessel used for mixing fluids to perform a reaction process.

  A stirrer is provided in the reaction vessel to stir and mix the fluids. Moreover, in order to be able to mix a liquid efficiently by this stirrer, it is known to provide a baffle plate in a reaction tank (for example, patent document 1).

  The baffle plate prevents the flow of the liquid formed in the reaction vessel by the rotation of the agitator, and can be, for example, in the form of an elongated rod or an elongated plate. Patent Document 1 discloses a baffle plate supported on the upper surface of a reaction vessel and disposed so as to extend from the upper surface to the lower surface.

  Moreover, in addition to the above-mentioned stirrer and baffle plate, the structure which provided separately the apparatus which has a different function in the reaction tank is proposed (for example, patent document 2). In Patent Document 2, as a device having different functions, an insertion tube for carrying in or removing a substance, a temperature measuring device for a substance to be mixed in a reaction tank, a pressure measuring device for a tank internal pressure, etc. What can be done is disclosed.

Patent No. 4537510 JP, 2015-107485, A

  By the way, in the reaction vessel, in addition to the stirrer and the baffle plate, when equipment further having different functions such as, for example, an insertion tube and a temperature measuring device is further provided, each device is made to access the reaction vessel in the reaction vessel. Therefore, it is necessary to provide a nozzle (insertion hole). Here, in the case where the inner surface in the reaction vessel is treated to be corrosion resistant such as glass lining, for example, a nozzle is provided at a portion to be wetted (for example, the side or bottom of the reaction vessel) It is desirable to avoid providing etc. in the reaction tank in terms of sealing performance and construction of the glass lining. Therefore, the nozzle is usually formed on the upper surface (upper lid) of the reaction vessel located outside the stirring region in the reaction vessel.

  Moreover, the application of the nozzle is not limited to the insertion tube and the thermometer, and it is necessary to provide a large number of nozzles in order to satisfy a large number of applications, such as for raw material input, exhaust, pressurization and depressurization.

  However, since the size and number of nozzles that can be formed on the upper surface of the reaction vessel are limited, it may not be possible to provide a nozzle for each device having different functions.

  The present invention has been made in view of such circumstances, and even in the case where an apparatus having a different function is provided in a reaction vessel provided with a stirrer and a baffle plate, a separate nozzle is provided in the reaction vessel. It is an object of the present invention to provide a baffle plate which does not have to be formed or can reduce the number of nozzles to be formed.

  In order to solve the problems described above, the baffle plate for a reaction vessel according to one aspect of the present invention is glass-lined on the outer surface, which is inserted into the reaction vessel through a nozzle formed in the reaction vessel, and the inside is hollow. The base plate is supported by the edge of the opening of the nozzle, and the tip side is inserted into the reaction vessel, and the base end side is the inner side. And a plurality of inner tubes used for different functions and extending toward the distal end side, and the inner surface of at least one of the plurality of inner tubes is coated with glass.

  According to the above configuration, since the plurality of inner pipes are provided inside the baffle plate for a reaction tank, the inner pipe can be used as a housing space for housing a measuring instrument such as a temperature measuring instrument, for example. Furthermore, at least one inner tube of the plurality of inner tubes is coated with glass on the inner surface. For this reason, the inner tube whose inner surface is covered with glass can be used as a fluid flow passage for inserting a fluid into the reaction vessel or for sucking the fluid in the reaction vessel.

  Therefore, even if it is necessary to provide a measuring device such as a temperature measuring device or a fluid flow passage, the reaction vessel can be accessed using the inner tube formed in the baffle plate, so that the reaction can be performed. There is no need to separately form a nozzle for a measuring instrument or a fluid flow passage in the tank.

  Therefore, the baffle plate for the reaction vessel according to the present invention forms a separate nozzle in the reaction vessel even when equipment of a different function is provided in the reaction vessel provided with the stirrer and the baffle plate for the reaction vessel. There is an effect that the number of nozzles that need not be or can be reduced can be reduced.

  Further, in the baffle plate for a reaction vessel according to another aspect of the present invention, in the above-described configuration, an inner pipe of which the inner surface is covered with the glass flows among the plurality of inner pipes into the reaction vessel. Or a fluid flow passage through which the fluid to be discharged from the reaction vessel flows, and the inner tube whose inner surface is not covered with the glass is a storage tube for containing a temperature measuring device for detecting the temperature in the reaction vessel It may be.

  According to the above configuration, since the fluid flow passage and the storage tube for the temperature measuring instrument can be provided in the baffle plate for the reaction vessel, the nozzle is provided on the reaction vessel when installing the fluid flow passage and the temperature measuring instrument in the reaction vessel. There is no need to form. In addition, the fluid flow passage and the storage tube are accommodated in the baffle plate for the reaction vessel and are not exposed in the reaction vessel, so that no force is generated with stirring. For this reason, it is possible to prevent the diameter from becoming larger than usual because it is not necessary to increase the strength more than usual.

  The baffle plate for a reaction vessel according to another aspect of the present invention, in the above-described configuration, includes, on the proximal end side, proximal end openings for inserting the plurality of inner tubes and guiding them into the interior; The end on the tip side of each of the plurality of inner pipes is joined to the end on the tip side of the baffle plate for the reaction vessel, and the end on the base end side of each of the plurality of inner pipes is the base It may be movable along the longitudinal direction of the inner pipe with respect to the end opening.

  According to the above configuration, each inner tube is joined to the end of the reaction chamber baffle plate at the tip end side, but is movable along the longitudinal direction at the proximal end opening of the reaction chamber baffle plate . Therefore, when the baffle plate for the reaction vessel and the inner pipe are formed of materials having different thermal expansion coefficients, or the thermal expansion coefficients of the two differ due to the temperature difference between the baffle plate for the reaction vessel and the inner pipe. Even in this case, it is possible to prevent the inner pipe or the baffle plate for the reaction vessel from being damaged due to the difference between the thermal expansion coefficients of the two.

  In the baffle plate for a reaction vessel according to another aspect of the present invention, in the above-described configuration, the proximal end side of each of the plurality of inner tubes can slide relative to the proximal end opening. Thus, a configuration may be provided that includes a seal that seals the gap between the proximal end of each of the plurality of inner tubes and the proximal opening.

  According to the above configuration, since the seal portion is provided, air tightness or water tightness in the baffle plate for a reaction vessel can be enhanced, and vibration of the inner pipe during operation can be prevented.

  The baffle plate for a reaction vessel according to the present invention is configured as described above, and even when equipment of a different function is provided in a reaction vessel provided with a stirrer and a baffle plate, a separate reaction vessel is provided. There is an effect that it is not necessary to form a nozzle, or the number of nozzles to be formed can be reduced.

It is an end elevation showing typically an example of composition of a reaction tank concerning an embodiment of the invention. It is a top view showing an example of composition of a baffle board concerning an embodiment of the invention. It is an end elevation showing typically an example of support composition of a baffle plate in a reaction vessel concerning an embodiment of the invention. FIG. 4 is an end view showing the internal structure of the base end side of the baffle plate shown in FIG.

  The configuration of the reaction vessel 1 according to the present embodiment will be described below with reference to FIG. FIG. 1 is an end view schematically showing an example of the configuration of a reaction vessel 1 according to an embodiment of the present invention. In the present embodiment, a container used to perform a reaction process on a fluid-like material is described as an example for the reaction tank 1, but the invention is not limited thereto, and the fluid-like material is agitated. It may be any container used for the purpose.

  The reaction vessel 1 according to the embodiment of the present invention is, for example, a glass-lined vessel used for performing a reaction process of a fluid raw material in a chemical plant etc., and as shown in FIG. The main body 11, the stirring blade 32, the rotation drive unit 31, the jacket 33, and the baffle plate (reactor baffle plate) 34 are provided.

  The tank body 11 is a bowl-shaped cylindrical container and has a storage space for storing the raw material to be subjected to the reaction process. As shown in FIG. 1, the lower surface 11a and the upper surface 11b of the tank main body 11 have a substantially arc-shaped dish shape which protrudes and curves in the vertical direction. Although not particularly illustrated in FIG. 1, the lower surface 11 a may be provided with a discharge nozzle for discharging the raw material (raw material after reaction) in the tank main body 11. For example, the discharge nozzle may be provided with a control valve (for example, a flush valve or the like) (not shown), and the material stored in the tank may be discharged through the discharge nozzle by opening the control valve. it can.

  As shown in FIG. 1, the stirring blade nozzle 13, the baffle plate nozzle 14, and the manhole 15 are integrally provided on the upper surface 11 b of the tank body 11. The stirring blade nozzle 13 is a nozzle for accessing the stirring blade 32 into the tank body 11. The stirring blade 32 is configured to include a rotating shaft of a cylindrical rod-shaped member whose outer surface is glass-lined and a wing member provided at an end of the rotating shaft. When the end on the inner side of the tank main body 11 is the tip end and the end on the stirring blade nozzle 13 side is the base end, among the end portions of the stirring blade 32, a wing member is formed at the tip of the stirring blade 32 The base end portion of the stirring blade projects from the stirring blade nozzle 13 toward the outside of the tank body 11 and is connected to a rotation driving unit 31 fixed to the upper surface 11 b of the tank body 11.

  The rotation drive unit 31 is a so-called reduction gear with a motor, and rotates the rotation shaft of the stirring blade 32. The rotation driving unit 31 is driven to rotate the rotation shaft, whereby the wing member provided at the tip of the stirring blade 32 is rotated to stir the raw material stored in the reaction tank 1.

  The baffle plate nozzle 14 is a nozzle for accessing the baffle plate 34 into the tank body 11. The baffle plate 34 is an elongated member whose outer surface is glass-lined and the inside is hollow, and is a so-called baffle plate for enabling the mixing blade 32 to efficiently mix the raw materials. .

  The base end side of the baffle plate 34 is supported by the edge (flange portion) of the opening of the baffle plate nozzle 14, and the tip end side of the baffle plate 34 is inserted into the tank body 11. Inside the baffle plate 34, a plurality of inner pipes 41 used for different functions are provided which extend from the proximal end side to the distal end side of the baffle plate 34. The detailed description of the baffle plate 34 will be described later.

  The manhole 15 is an opening for a worker or the like to enter the inside of the tank main body 11 or to put in a liquid during cleaning or inspection, and a lid 16 for sealing is provided.

  Moreover, the jacket 33 is attached so that the outer periphery of the tank main body 11 may be surrounded as a heat source. The inside of the tank body 11 can be heated by the heat medium flowing into the jacket 33. The range in the tank main body 11 covered by the jacket 33 may be a region (stirring region) for stirring the raw material.

(Baffle plate)
Hereinafter, the configuration of the baffle plate 34 according to the embodiment of the present invention will be described in detail with reference to FIG. FIG. 2 is a plan view showing an example of the configuration of the baffle plate 34 according to the embodiment of the present invention. In the plan view of the baffle plate 34 shown in FIG. 2, a part thereof is an end view showing the internal structure of the baffle plate 34.

  The baffle plate 34 is an elongated hollow member in which a cylindrical shape and an elliptic cylindrical shape are combined, and the outer surface is glass-lined. In FIG. 2, the section from the base end side to the intermediate position of the baffle plate 34 is a cylindrical portion, and the portion wider than the cylindrical portion from the intermediate position to the tip end is an elliptic cylindrical shape. . The boundary between the cylindrical portion and the elliptic cylindrical portion in the baffle plate 34 is formed so as to gradually widen from the cylindrical portion to the elliptical portion. The shape of the baffle plate 34 is not limited to the elongated shape as shown in FIG. 2, and may be a cylindrical shape having the same diameter from the proximal end to the distal end, or an elliptic cylindrical shape It is also good. The baffle plate 34 may have a shape that causes turbulent flow in the flow of the raw material stirred by the stirring blades 32 and efficiently mixes the raw materials.

  Further, on the base end side of the baffle plate 34, there is provided a disc-shaped flange portion 37 which protrudes outward from the outer surface of the baffle plate 34 and contacts the edge (flange portion) of the baffle plate nozzle 14. It is done. Then, as shown in FIG. 1, the baffle plate 34 is fixed from the upper surface 11 b to the lower surface 11 a of the tank main body 11 by fixing the contact portion between the flange portion 37 and the edge of the baffle plate nozzle 14 by a fixing member. It can support in the stretched state.

  In addition, although the baffle board 34 was provided with the collar part 37 as mentioned above, and it was a structure supported by the edge part (flange part) of the nozzle 14 for baffle boards, it is not limited to this. For example, as shown in FIG. 3, the baffle plate 34 does not have the flange portion 37, and has a cylindrical shape that extends straight from the opening of the baffle plate nozzle 14 to the outside. And, it may be configured to be supported by the baffle guide 21 that surrounds the base end side portion of the baffle plate 34 that protrudes from the baffle plate nozzle 14 to the outside. In addition, FIG. 3 is the end elevation which showed typically an example of the support structure of the baffle plate 34 in the reaction tank 1 which concerns on embodiment of this invention.

  Specifically, as shown in FIG. 3, the baffle guide 21 is fixed to the edge of the baffle plate nozzle 14 by a plurality of nozzle fixing bolts 22. The baffle guide 21 is also fixed to the upper surface 11 b of the tank body 11 by a plurality of tank body fixing bolts 23.

  In the vicinity of the opening of the baffle plate nozzle 14, a gland packing 24 which is a sealing portion for sealing the gap between the baffle plate nozzle 14 and the baffle plate 34 is provided. The gland packing 24 is formed on an annular packing receiving plate 25 provided between the baffle guide 21 and the edge of the baffle plate nozzle 14, and on the proximal end side of the baffle plate 34 than the packing receiving plate 25. It is disposed between a cylindrically shaped packing pressure plate 26 having a flange. The gland packing 24 is sandwiched by the packing receiving plate 25 and the packing pressing plate 26.

  In addition, the baffle guide 21 is provided with a plurality of support bolts 27 projecting toward the baffle plate 34 from the baffle guide 21 in order to support the baffle plate 34. That is, on the circumferential surface in the vicinity of the end on the base end side of the baffle plate 34, a plurality of support openings for inserting the support bolts 27 are formed. The support bolt 27 is inserted into the support opening of the baffle plate 34 to support the baffle plate 34. That is, the baffle plate 34 is protruded from the inside of the tank body 11 to the outside, and is disposed along the inside of the baffle guide 21. The baffle guide 21 can support the baffle plate 34 by inserting the support bolt 27 into the support opening.

  Further, as shown in FIG. 2, in the hollow baffle plate 34, there are provided a first inner pipe 41a and a second inner pipe 41b which extend along the longitudinal direction of the baffle plate 34. The first inner pipe 41a and the second inner pipe 41b are simply referred to as the inner pipe 41 when it is not necessary to distinguish them. Further, the number of inner tubes 41 provided in the baffle plate 34 is not limited to two, and two or more may be provided. The inner pipe 41 is appropriately provided in accordance with the diameter dimension of the baffle plate 34 and the function (apparatus) provided in the reaction vessel 1.

  The first inner pipe 41a is formed of, for example, a metal pipe such as carbon steel, and the inner surface of the first inner pipe 41a is coated with glass. For example, the inner surface of the first inner pipe 41a may be glass-lined, or glass may be poured into the first inner pipe 41a and the inner surface may be covered with the glass. Thus, since the inner surface of the first inner pipe 41a is covered with glass, the inside of the first inner pipe 41a can have corrosion resistance.

  Further, a first end side opening 34a1 having an opening dimension corresponding to the outer diameter of the first inner pipe 41a is formed at the tip end of the baffle plate 34, and the first front end side opening 34a1 The tip of the inner tube 41a is joined, for example, by welding or the like. Thereby, the tip of the first inner pipe 41a is fixed to the tip of the baffle plate 34, and the fluid flows out into the tank body 11 through the first inner pipe 41a, or the fluid in the tank body 11 is the first inner pipe It can flow into 41a. On the other hand, at the base end portion of the baffle plate 34, a first base end side opening 34a2 for inserting the first inner pipe 41a and guiding it into the baffle plate 34 is formed. The opening dimension of the first proximal end opening 34a2 corresponds to the outer diameter dimension of the first inner pipe 41a.

  For this reason, the first inner pipe 41a is an insertion pipe for inserting a fluid such as liquid or gas from the outside into the tank body 11 of the reaction tank 1, or a suction pipe for sucking the stirred raw material from inside the tank body 11. It can be a functioning fluid flow passage (fluid flow pipe). For example, when using the first inner pipe 41a as a suction pipe, the fluid in the tank body 11 is passed through the flange of the first inner pipe 41a provided on the side of the first base end opening 34a2 using a pump not shown. Aspirate. Alternatively, by pressurizing the inside of the tank body 11, the fluid in the tank body 11 may be pushed out and taken out through the first inner pipe 41a. Similarly, when the first inner pipe 41a is used as an insertion pipe, a supply pipe of a raw material or gas (not shown) is connected to the first inner pipe 41a to supply a fluid.

  In order to enhance the corrosion resistance, the outer surface of the joint between the tip of the first inner pipe 41a and the tip of the baffle plate 34 is glass-lined.

  Further, as shown in FIG. 4, the air tightness or water tightness in the baffle plate 34 is enhanced, and the first inner pipe 41 a is positioned so as to be held at a predetermined position, and the first proximal end 34 a 2 The first seal portion is a gap between the first proximal end opening portion 34a2 and the first inner pipe 41a so that the first inner pipe 41a can slide along the longitudinal direction of the first inner pipe 41a. (Sealing part) 36a seals. For example, a gland packing can be exemplified as the first seal portion 36a. FIG. 4 is an end view showing the internal structure of the base end side of the baffle plate 34 shown in FIG. FIG. 4 is an enlarged view of a portion A on the proximal end side of the baffle plate 34 shown in FIG.

  When there is no need to improve the air tightness and water tightness in the baffle plate 34, the peripheral surface of the first inner pipe 41a and the first seal portion 36a do not necessarily need to be in contact with each other, and the first proximal end opening It is sufficient that the first inner pipe 41a can move in the longitudinal direction of the first inner pipe 41a in 34a2.

  As described above, the first inner pipe 41a has its distal end fixed to the distal end of the baffle plate 34, while its proximal end is provided in the baffle plate 34 in a so-called cantilevered state in which it becomes free. There is. The first inner pipe 41 a is sealed along the longitudinal direction of the first inner pipe 41 a on the base end side of the baffle plate 34 so as to be slidable. Therefore, when the baffle plate 34 and the first inner pipe 41a are formed of materials having different thermal expansion coefficients, or when the thermal expansion coefficients of the both are different due to the temperature difference between the baffle plate 34 and the first inner pipe 41a. Even in this case, it is possible to prevent the first inner pipe 41a or the baffle plate 34 from being broken due to the difference in the thermal expansion coefficient between the two.

  Further, when stirring in the tank main body 11 or when using the first inner pipe 41a as a fluid flow passage, the baffle plate 34 may vibrate, but the baffle plate 34 and the first baffle portion 34a are provided by the first seal portion 36a. It is possible to suppress the vibration of the inner pipe 41a and the damage individually.

  Further, the first inner pipe 41 a functioning as a fluid flow passage can be provided in the baffle plate 34. For this reason, when installing the fluid flow passage (the first inner pipe 41 a) in the reaction tank 1, it is not necessary to individually form the nozzles in the tank main body 11 of the reaction tank 1. Further, since the fluid flow passage is accommodated in the baffle plate 34 and is not exposed in the tank body 11 of the reaction tank 1, the force generated by the stirring is not exerted. For this reason, it is possible to prevent the diameter dimension of the fluid flow passage (or the size of the nozzle) from becoming larger than usual, since it is not necessary to increase the strength more than usual.

In addition, since the upper surface 11b (upper lid) of the reaction tank 1 has a fixed size, the number that can be provided is limited even if a plurality of nozzles are provided. Particularly in the case of a small reaction vessel 1 (for example, 5 m ³ or less), the number of nozzles that can be provided is particularly limited. For this reason, it is not preferable to use the nozzle only to provide a fluid flow passage or to provide a temperature measuring device, since this limits the use of the nozzle in other applications. However, in the reaction vessel 1 according to the embodiment of the present invention, the first inner pipe 41a functioning as a fluid flow passage in the baffle plate 34 and the second inner pipe 41b functioning as an accommodation pipe of a temperature measuring device described later. The nozzle can be effectively used by providing the

  The second inner pipe 41 b is formed of a metal pipe in the same manner as the first inner pipe 41 a, and the tip end portion thereof is joined to the detection portion housing pipe 35. The detector housing tube 35 is, for example, a tube for housing a detector of a measuring device such as a temperature sensor (not shown) of a temperature measuring device. The second inner pipe 41b and the detection portion storage pipe 35 realize the storage pipe of the present invention. As shown in FIG. 2, the detector housing tube 35 has a cylindrical shape that protrudes outward from the tip of the baffle plate 34, and the tip is closed. The proximal end portion of the detection portion storage pipe 35 is joined to the tip end portion of the second inner pipe 41b by, for example, welding, and the inside of the detection portion storage pipe 35 and the inside of the second inner pipe 41b are communicated. It is configured. The second inner pipe 41b does not necessarily have a configuration in which the inner surface is covered with glass like the first inner pipe 41a.

  Further, as shown in FIG. 2, a second distal end opening 34 b having an opening size corresponding to the outer diameter of the proximal end of the detection portion storage tube 35 is formed at the distal end of the baffle plate 34. The baffle plate 34 and the detection portion storage pipe 35 are joined, for example, by welding or the like in a state where the base end portion of the detection portion storage pipe 35 is inserted into the second front end side opening portion 34b. And the outer surface of the detection part storage pipe | tube 35 and the outer surface of the junction part of the detection part storage pipe | tube 35 and the baffle plate 34 are glass-lined. For this reason, the outer surface of the detection portion storage pipe 35 has corrosion resistance similarly to the outer surface of the baffle plate 34, and the detection portion of the measuring instrument stored in the detection portion storage pipe 35 is a raw material in the tank main body 11. It can prevent being corroded by etc.

  Further, on the base end side of the baffle plate 34, a second base end side opening 34b2 for inserting the second inner pipe 41b and guiding it into the baffle plate 34 is formed. The opening dimension of the second base end side opening 34b2 corresponds to the outer diameter dimension of the second inner pipe 41b. Further, the inner diameter of the second inner pipe 41b is a size corresponding to the cross-sectional shape of the measuring device (temperature measuring device) accommodated in the second inner pipe 41b.

  According to the above-described configuration, the housing space of the measuring instrument can be formed in the baffle plate 34 by the detection portion housing pipe 35 and the second inner pipe 41b. Therefore, when a measuring instrument such as a temperature measuring instrument is provided in the reaction vessel 1, the inside of the reaction vessel 1 can be accessed using the second inner pipe 41 b formed in the baffle plate 34. Therefore, when providing measuring devices, such as a temperature measuring device, in the reaction tank 1, it is not necessary to form separately the nozzle for penetrating a measuring device in the reaction tank 1. As shown in FIG.

  Moreover, although the example which accommodated a temperature measuring device in the accommodation space formed of the 2nd inner pipe 41b and the detection part accommodation tube 35 was mentioned above and mentioned and demonstrated, the measuring instrument accommodated in this accommodation space is a temperature measurement instrument It is not limited to It is preferable that the shapes of the second inner pipe 41b and the detection section storage pipe 35 correspond to the shapes of the measuring instrument to be accommodated and the detection section of the measuring instrument.

  Further, the inner surfaces of the first inner pipe 41a and the second inner pipe 41b are all coated with glass, and a fluid flow passage for inserting a fluid into the reaction tank 1, a fluid flow passage for suctioning the fluid in the reaction tank 1, Alternatively, it may be an insertion path for inserting a pressure measuring device. Furthermore, a third inner pipe may be provided in the baffle plate 34.

  Further, air tightness or water tightness in the baffle plate 34 is enhanced, and the second inner pipe 41 b is positioned so as to be held at the predetermined position, and the second inner pipe 41 b is The second seal portion (seal portion) 36b forms a gap between the second proximal end opening portion 34b2 and the second inner pipe 41b so as to be slidable along the longitudinal direction of the second inner pipe 41b. It is sealed. The second seal portion 36b can be exemplified by a seal made of polytetrafluoroethylene (PTFE), for example.

  When there is no need to improve the air tightness and water tightness in the baffle plate 34, the peripheral surface of the second inner pipe 41b and the second seal portion 36b do not have to be in contact with each other, and the second proximal end opening It is sufficient that the second inner pipe 41b can move in the longitudinal direction of the second inner pipe 41b at 34b2.

  As described above, the second inner pipe 41b is fixed to the front end of the baffle plate 34 at the tip end thereof in the same manner as the first inner pipe 41a, while the base end is free. It is provided in the baffle plate 34 in the state. The second inner pipe 41 b is sealed along the longitudinal direction of the second inner pipe 41 b at the base end of the baffle plate 34 so as to be slidable. Therefore, when the baffle plate 34 and the second inner pipe 41b are formed of materials having different thermal expansion coefficients, or when the thermal expansion coefficients of the two are different due to the temperature difference between the baffle plate 34 and the first inner pipe 41a. Even in this case, it is possible to prevent the second inner pipe 41b or the baffle plate 34 from being broken due to the difference in the thermal expansion coefficient of the two.

  In addition, a second inner pipe 41 b functioning as a storage pipe of a measuring device such as a temperature measuring device can be provided in the baffle plate 34. Therefore, it is not necessary to form a nozzle in the reaction tank 1 when installing the measuring device in the reaction tank 1.

  In the case where the second inner pipe 41b provided in the baffle plate 34 is used as a housing pipe of the temperature measuring device and the first inner pipe 41a is used as the insertion pipe, the temperature measuring device and the insertion pipe are separately disposed. As compared with the configuration, not only the use of the nozzle can be reduced but also the temperature of the outlet of the insertion tube of the supplied gas or liquid can be measured accurately. Therefore, the reaction performed in the tank body 11 of the reaction tank 1 can be easily controlled.

  The baffle plate of the present invention can be widely used in a reaction vessel for stirring raw materials in a chemical plant or the like.

1 reaction tank 11 tank body 14 nozzle for baffle plate (nozzle)
34 Baffle plate (Baffle plate for reaction tank)
41 inner pipe 41a first inner pipe (inner pipe)
41b 2nd inner pipe (inner pipe)
34a2 1st base end side opening 34b2 2nd base end side opening 36a 1st seal part (seal part)
36b 2nd seal part (seal part)

Claims (4)

An elongated baffle plate for a reaction vessel, the outer surface of which is inserted into the reaction vessel through a nozzle formed in the reaction vessel, and the outer surface is glass-lined and the inside is hollow,
The proximal side is supported by the edge of the opening of the nozzle, and the distal side is inserted into the reaction vessel,
The interior comprises a plurality of inner tubes used for different functions, extending from the proximal side toward the distal side,
A baffle plate for a reaction vessel, wherein an inner surface of at least one of the plurality of inner tubes is coated with glass. Among the plurality of inner tubes, the inner tube whose inner surface is coated with the glass is a fluid flow passage through which a fluid to be flowed into or discharged from the reaction vessel flows.
The baffle plate for reaction vessels according to claim 1, wherein the inner pipe not covered with the glass on the inner surface is a housing pipe for containing a temperature measuring device for detecting the temperature in the reaction tank. At the proximal end side, each has a proximal end opening for inserting the plurality of inner tubes and guiding the inner tube to the inside,
The end on the tip side of each of the plurality of inner tubes is joined to the end on the tip side of the baffle plate for the reaction vessel,
The reaction vessel according to claim 1 or 2, wherein the proximal end of each of the plurality of inner tubes is movable along the longitudinal direction of the inner tube with respect to the proximal opening. Baffle plate.   The proximal end and the base of each of the plurality of inner pipes are arranged such that the proximal end of each of the plurality of inner pipes can slide relative to the proximal opening. The baffle plate for reaction vessels according to claim 3 provided with a seal part which seals a crevice with end side opening.

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