Impregnating compound outer coil pipe heating reaction kettle

Abstract

The utility model relates to the field of reaction kettles, and discloses an impregnating compound outer coil pipe heating reaction kettle which comprises a reaction kettle body and a hydrophobic unit for discharging condensate water, a spiral coil pipe is arranged on the outer wall of the reaction kettle body; the coil pipe is provided with a steam input pipe and a steam output pipe; the steam input pipe is positioned below the reaction kettle body; the steam output pipe is positioned above the steam input pipe; the steam input pipe is provided with a steam inlet and a condensed water outlet; the steam inlet is used for introducing high-temperature steam; the steam inlet is positioned above the condensed water outlet; the condensate water outlet is communicated with the drainage unit; and the steam output pipe is provided with a first drain valve. The heating reaction kettle can prevent condensed water from being accumulated in the coil pipe, so that the heating effect of the reaction kettle is ensured.

Description

Technical Field

[0001] The utility model relates to the field of reaction kettles, in particular to a reaction kettle with an outer coil heating system for an infiltrant. Background Art

[0002] In glass fiber production, the sizing agent used is first stored in a storage tank after being prepared. It is then fed from the storage tank into a circulating reactor for repeated use. During this period, a float automatically replenishes the sizing agent. The reactor is used to temporarily store the sizing agent that flows back after passing through the glass fiber coating device. After the sizing agent circulates through multiple sets of coating devices, the sizing agent temperature will decrease. Therefore, the reactor needs to be heated. Currently, it is common to heat it by passing steam through a jacket or by setting a coil outside the reactor to pass steam through it. The jacket method is prone to scabs on the inner wall of the reactor, affecting the quality of the sizing agent. The external coil method is prone to cause condensation to accumulate in the coil, thereby affecting the heating of the reactor and failing to reach the required temperature.

[0003] CN202021845755.9 discloses an outer half-tube heating reactor with an upper support, comprising a reactor body, a motor reducer, a magnetic coupling, a labyrinth seal, an upper support, an upper transmission shaft, a coupling, a lower stirring shaft, an upper stirring paddle, a middle stirring paddle, a bottom stirring paddle, an inner coil and an outer half-tube. A motor reducer is provided on the top of the reactor body, a magnetic coupling is provided between the reactor body and the motor reducer, a labyrinth seal is provided between the reactor body and the magnetic coupling, the output shaft of the magnetic coupling is connected to the upper transmission shaft, an upper support is provided between the end of the labyrinth seal and the upper transmission shaft, and the upper transmission shaft is connected to the lower stirring shaft through a coupling; the lower stirring shaft is provided with an upper stirring paddle, a middle stirring paddle, and a bottom stirring paddle from top to bottom; the outer half-tube is wound around the outer wall and bottom of the reactor body in a single helix or double helix form; the inner coil is fixed on the inner wall of the reactor body. The kettle has an inner coil inlet on one side of the upper center and an inner coil outlet on the other side, connecting the inner coil. Outer half-pipe outlets are located on the left and right sides of the center, and inlets are located on the left and right sides of the bottom's central axis, connecting the outer half-pipes. A discharge port is located in the center of the bottom. Using spiral outer half-pipe heating reduces steam or thermal oil consumption, resulting in excellent heat exchange and stable material reaction. However, steam heating produces condensate, which accumulates in the coil and is difficult to drain, affecting the heating effect.

[0004] The technical problem to be solved by the utility model is: how to prevent condensed water from accumulating in the coil and ensure the heating effect of the reactor. Utility Model Content

[0005] The main purpose of the utility model is to provide a wetting agent external coil heating reactor. By arranging a drain valve on the steam output pipe and a drain unit at the steam inlet, part of the condensed water is discharged downward through the drain unit, and part of the condensed water is pushed to the drain valve at the top by the steam pressure and discharged, thereby discharging the condensed water in the coil, maintaining the heating effect of the steam, and ensuring the quality of the wetting agent.

[0006] To achieve the above objectives, the technical solutions adopted in this application are:

[0007] A wetting agent external coil heating reactor, comprising a reactor body and a hydrophobic unit for discharging condensed water; the outer wall of the reactor body is provided with a spiral coil; the coil is provided with a steam input pipe and a steam output pipe; the steam input pipe is located below the reactor body; the steam output pipe is located above the steam input pipe; the steam input pipe is provided with a steam inlet and a condensed water outlet; the steam inlet is used to introduce high-temperature steam; the steam inlet is located above the condensed water outlet; the condensed water outlet is connected to the hydrophobic unit; the steam output pipe is provided with a first hydrophobic valve.

[0008] Compared with the existing technology, this solution has the following beneficial effects:

[0009] The reactor in this case is equipped with a drain unit on the steam input pipe and a drain valve on the steam output pipe, so that most of the condensed water can flow downward into the drain unit under the action of gravity. The remaining small part of the condensed water will flow upward into the drain valve because the thrust of the steam is greater than the gravity. In this way, the accumulation of condensed water in the coil can be avoided, and the reduction of heating effect due to the presence of condensed water can be prevented.

[0010] Secondly, the reflux pipe and its end are both inserted below the liquid level in the reactor, which can reduce the generation of foam. The end of the temperature probe is inserted below the liquid level in the reactor, which not only can detect the temperature normally, but also can immediately send an alarm when an abnormal situation occurs and the liquid level drops until the probe is exposed. This eliminates the need for additional liquid level probes to detect abnormalities, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the wetting agent outer coil heating reactor in Example 1. DETAILED DESCRIPTION

[0012] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0013] Example 1

[0014] refer to Figure 1 A wetting agent external coil heating reactor includes a reactor body 1 and a drain unit 2 for discharging condensed water; the outer wall of the reactor body 1 is provided with a spiral coil 3; the coil 3 is provided with a steam input pipe 31 and a steam output pipe 32; the steam input pipe 31 is located below the reactor body 1; the steam output pipe 32 is located above the steam input pipe 31; the steam input pipe 31 is provided with a steam inlet 33 and a condensed water outlet 34; the steam inlet 33 is used to introduce high-temperature steam; the steam inlet 33 is located above the condensed water outlet 34; the condensed water outlet 34 is connected to the drain unit 2; the steam output pipe 32 is provided with a first drain valve 4.

[0015] In this embodiment, when the reactor needs to be heated, an external steam pipe introduces high-temperature steam from the steam inlet 33, and the high-temperature steam moves upward along the coil 3. The high-temperature steam exchanges heat with the inner wall of the reactor body 1, thereby heating the wetting agent, and finally flows out from the steam output pipe 32.

[0016] It should be noted that when the high-temperature steam exchanges heat with the inner wall of the reactor body 1, the high-temperature steam cools down and produces condensed water. Most of the condensed water, due to the gravity being greater than the thrust of the high-temperature steam, moves downward and enters the drain unit 2 through the condensed water outlet 34 for collection. Meanwhile, a small amount of condensed water, due to the gravity being less than the thrust of the high-temperature steam, moves upward and is collected by the first drain valve 4 on the steam output pipe 32. By providing the drain unit 2 and the first drain valve 4 to collect condensed water at the inlet and outlet of the coil 3, the accumulation of condensed water in the coil 3 is prevented, which could affect the heating effect of the high-temperature steam.

[0017] Secondly, by heating with the coil 3, the crystallization of the wetting agent on the inner wall of the reactor body 1 can be reduced. Moreover, during the rising process of the high-temperature steam, the temperature will gradually decrease, so that the temperature above the liquid surface of the reactor body 1 is relatively low, thereby reducing the agglomeration of the wetting agent liquid surface and improving the quality of the wetting agent.

[0018] Preferably, the drain unit 2 includes a second drain valve 21 and a stop valve 22 ; the second drain valve 21 , the stop valve 22 and the condensed water outlet 34 are connected in sequence.

[0019] In this embodiment, a stop valve 22 is provided between the second steam trap 21 and the condensate outlet 34 to prevent the condensate from flowing back into the coil 3 , thereby ensuring the heating effect of the coil 3 .

[0020] Preferably, a temperature probe 11 and a reflux pipe 12 for returning the wetting agent to the reactor body 1 are provided on the top of the reactor body 1; the ends of the temperature probe 11 and the reflux pipe 12 are both extended below the liquid level inside the reactor body 1; and an automatic liquid replenishing valve 13 is provided on the top of the reactor body 1.

[0021] In this embodiment, the infiltrant continuously flows back into the reactor body. The end of the reflux pipe 12 extends below the liquid level within the reactor body 1. This reduces the impact of the reflowing infiltrant on the liquid within the reactor body 1 and reduces the amount of foaming. The end of the temperature probe 11 extends below the liquid level within the reactor body 1. This allows the temperature probe 11 to not only monitor the infiltrant temperature but also detect the sudden drop in temperature when an abnormality occurs, causing the liquid level to drop, allowing the temperature probe 11 to emerge from the liquid surface. This generates an alarm, notifying personnel for inspection and repair. This eliminates the need for an additional level probe to detect abnormal liquid levels, reducing costs.

[0022] Preferably, the pitch of the coil 3 is 1 cm to 3 cm.

[0023] In this embodiment, the pitch of the coil 3 is preferably 2 cm, but other sizes are not excluded.

[0024] Preferably, the steam inlet 33 is provided with a steam regulating valve.

[0025] In this embodiment, by providing a steam regulating valve, the flow rate of the introduced high-temperature steam can be adjusted in real time according to the temperature detected by the temperature probe 11 , thereby controlling the temperature of the wetting agent in the reactor body 1 .

[0026] Preferably, a stirring unit 5 is provided on the top of the reactor body 1 ; the stirring unit 5 includes a stirring rod 51 and a first driving module 52 for driving the stirring rod 51 to rotate.

[0027] In this embodiment, the first driving module 52 is preferably a motor, but a rotary cylinder or a hydraulic cylinder may also be selected.

[0028] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wetting agent outer coil heating reactor, characterized in that: It includes a reactor body and a drain unit for discharging condensed water; the outer wall of the reactor body is provided with a spiral coil; the coil is provided with a steam input pipe and a steam output pipe; the steam input pipe is located below the reactor body; the steam output pipe is located above the steam input pipe; the steam input pipe is provided with a steam inlet and a condensed water outlet; the steam inlet is used to introduce high-temperature steam; the steam inlet is located above the condensed water outlet; the condensed water outlet is connected to the drain unit; the steam output pipe is provided with a first drain valve.

2. The infiltrant outer coil heating reactor according to claim 1, characterized in that: The drain unit includes a second drain valve and a stop valve; the second drain valve, the stop valve and the condensed water outlet are connected in sequence.

3. The infiltrant outer coil heating reactor according to claim 1, characterized in that: A temperature probe and a reflux pipe for the wetting agent to reflux to the reactor body are provided on the top of the reactor body; the ends of the temperature probe and the reflux pipe are both extended below the liquid level inside the reactor body; an automatic liquid replenishing valve is provided on the top of the reactor body.

4. The infiltrant outer coil heating reactor according to claim 1, characterized in that: The pitch of the coil is 1 cm to 3 cm.

5. The infiltrant outer coil heating reactor according to claim 1, characterized in that: The steam inlet is provided with a steam regulating valve.

6. The infiltrant outer coil heating reactor according to claim 1, characterized in that: A stirring unit is provided on the top of the reactor body; the stirring unit comprises a stirring rod and a first driving module for driving the stirring rod to rotate.

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