CN209772070U

CN209772070U - Heating pipe of liquid resin reaction kettle

Info

Publication number: CN209772070U
Application number: CN201920254423.4U
Authority: CN
Inventors: 赵继增; 许超; 李�昊
Original assignee: Yima Ruinong Chemical Co Ltd
Current assignee: Yima Ruinong Chemical Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2019-12-13
Anticipated expiration: 2029-02-28

Abstract

The utility model provides a liquid resin reation kettle's heating pipe, its constitution includes: reation kettle and heating pipe, heating pipe are that the coil pipe encircles in reation kettle's inside, and the heating pipe divide into upper heating pipe and lower floor heating pipe, according to a large amount of actual production data, is 0.4 times of reation kettle height H with the height H1 of upper heating pipe, and when the liquid level descends gradually, when lower floor heating pipe set up to 0.6H, the heating effect is the best. The beneficial effects are as follows: the heating pipes on the upper layer and the lower layer can independently control the steam flow of each layer, thereby avoiding the waste of the steam on the upper layer and saving energy.

Description

Heating pipe of liquid resin reaction kettle

Technical Field

The utility model relates to a resin production field especially indicates a liquid resin reation kettle's heating pipe.

Background

The production of the phenolic resin is mainly the reaction process of phenol and formaldehyde, and the most important links in the production process are the heating and dehydration processes because the formaldehyde content is 37 percent and is mostly water, the traditional reaction kettle is integrally heated by a coil pipe, and the liquid level of a small and medium-sized reaction kettle is gradually reduced along with the separation of water in the reaction process, thereby causing the waste of upper-layer steam.

SUMMERY OF THE UTILITY MODEL

The utility model provides a heating pipe of a liquid resin reaction kettle, which solves the problems existing in the prior art.

The technical scheme of the utility model is realized like this:

A heating pipe of a liquid resin reaction kettle comprises the following components: reation kettle and heating pipe, the heating pipe sets up reation kettle's inside, the heating pipe divide into upper heating pipe and lower floor's heating pipe, the high H1 of upper heating pipe with the high H2 of lower floor's heating pipe does respectively reation kettle height H's 0.4 times and 0.6 times the upper and lower both ends of upper heating pipe are equipped with upper heating pipe steam inlet and upper heating pipe steam outlet respectively the upper and lower both ends of lower floor's heating pipe are equipped with lower floor's heating pipe steam inlet and lower floor's heating pipe steam outlet respectively.

The upper heating pipe is not communicated with the lower heating pipe.

The utility model has the advantages that: divide reation kettle's heating pipe into two-layerly, the lower floor height sets up to 3/5 of reation kettle height, and the upper strata height sets up to 2/5 of reation kettle height, and the steam flow on every layer can all be controlled alone to the heating pipe on upper strata and lower floor, can avoid the waste of upper steam, the energy saving.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1, a heating pipe of a liquid resin reaction kettle comprises: a reaction kettle 1 and a heating pipe, wherein the heating pipe is a coil pipe and surrounds the interior of the reaction kettle 1, the heating pipe is divided into an upper heating pipe 3 and a lower heating pipe 6, according to a large amount of practical production data, the height H1 of the upper heating pipe 3 is 0.4 time of the height H of the reaction kettle 1, when the liquid level gradually drops and the lower heating pipe 6 is set to be 0.6H, the heating effect is best, taking a reaction kettle with a straight cylinder height of 2.4m as an example, the height of the lower heating pipe is 1.44m, the height of the upper heating pipe is 0.96m, namely, the 1.44m position is the boundary point of the upper heating pipe and the lower heating pipe, the upper end and the lower end of the upper heating pipe 3 are respectively provided with an upper heating pipe steam inlet 2 and an upper heating pipe steam outlet 4, the upper end and the lower end of the lower heating pipe 6 are respectively provided with a lower heating pipe steam inlet 5 and a lower heating pipe steam outlet 7, so that the upper heating pipe and the lower heating pipe can independently control the steam flow of each layer.

The upper heating pipe 3 is not communicated with the lower heating pipe 6.

When the reactor is used, the temperature of the raw materials can be rapidly raised by double-layer heating in the early stage of reaction; in the middle stage of the reaction, along with the gradual completion of dehydration, the liquid level in the reaction kettle 1 is reduced, and the flow of upper layer steam is gradually reduced until the reaction kettle is closed; and in the later stage of reaction, the dehydration is finished, and only the lower layer is heated according to the liquid level of the residual raw materials, so that the waste of steam is reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating pipe of a liquid resin reaction kettle comprises the following components: reation kettle and heating pipe, its characterized in that: the heating pipe sets up reation kettle's inside, the heating pipe divide into upper heating pipe and lower floor's heating pipe, the high H1 of upper heating pipe with the high H2 of lower floor's heating pipe does respectively reation kettle height H's 0.4 times and 0.6 times the upper and lower both ends of upper heating pipe are equipped with upper heating pipe steam inlet and upper heating pipe steam outlet respectively the upper and lower both ends of lower floor's heating pipe are equipped with lower floor's heating pipe steam inlet and lower floor's heating pipe steam outlet respectively.

2. The heating pipe of the liquid resin reaction kettle according to claim 1, characterized in that: the upper heating pipe is not communicated with the lower heating pipe.