Film evaporator

Abstract

The utility model relates to the technical field of film evaporators and discloses a film evaporator which comprises an evaporator body, a gas-liquid separation assembly is arranged at the upper end of the evaporator body, and a recovery assembly is arranged on one side of the gas-liquid separation assembly. The gas-liquid separation assembly comprises a gas-liquid separation bin, an inclined plate is installed at the lower end of the gas-liquid separation bin, a gas pipe is installed at the upper end of the inclined plate, a gas bin is arranged at the upper end of the gas pipe, gas outlets are formed in the two sides of the lower end of the gas bin, and a wave condensation plate is installed in the gas-liquid separation bin. And a condensation pipe is arranged in the wave condensation plate. According to the utility model, through the arrangement of the gas-liquid separation assembly, full gas-liquid separation is carried out on evaporated gas, the separation efficiency is improved, the condensation effect is improved, the practicability is improved to a certain extent, and through the arrangement of the recovery assembly, part of steam is recovered, so that the gas-liquid separation process is clearer and clearer, and the separation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin film evaporators, and particularly relates to a thin film evaporator. Background Art

[0002] Para-aramid is a high-performance synthetic fiber and is widely used in various industrial fields. However, with the increasing application of para-aramid, the treatment and recycling of its waste have become an increasingly important issue.

[0003] As an efficient evaporation device, thin film evaporators have been widely used in fields such as chemical industry, food, and pharmaceuticals. It is necessary to develop a thin film evaporator to facilitate the recycling of para-aramid.

[0004] Chinese Patent Publication No.: CN220026118U discloses "A Thin Film Evaporator", which includes an evaporator body and a driving motor. An inlet pipe is provided at the upper end of one side of the evaporator body, an outlet pipe is provided at the bottom of the thin film evaporator, an outlet is provided on one side of the outlet pipe, the driving motor is arranged on the top of the evaporator body, a scraping film assembly is arranged inside the evaporator body, the driving motor drives the scraping film assembly to rotate, and a steam outlet is arranged on the top of the evaporator body; and a heating jacket is arranged outside the evaporator body, a heating medium is passed through the inside of the rotating shaft, and there are heat sources both inside and outside the evaporator body, and the working efficiency is high.

[0005] In the above-mentioned prior art, the driving motor drives the scraping film assembly to rotate, a steam outlet is arranged on the top of the evaporator body; and a heating jacket is arranged outside the evaporator body, a heating medium is passed through the inside of the rotating shaft, and there are heat sources both inside and outside the evaporator body. However, in the process of using the existing equipment, it does not have the function of fully separating gas and liquid, and the separation efficiency of gas and liquid is low and the condensation effect is poor during use, which has certain limitations to a certain extent. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a thin film evaporator to solve the problems put forward in the above background art, that is, it does not have the function of fully separating gas and liquid, the separation efficiency of gas and liquid is low and the condensation effect is poor during use, which has certain limitations to a certain extent.

[0007] To solve the above technical problems, the utility model provides the following technical solution: A thin film evaporator includes an evaporator body, a gas-liquid separation component is arranged at the upper end of the evaporator body, and a recycling component is arranged on one side of the gas-liquid separation component;

[0008] The gas-liquid separation component includes a gas-liquid separation chamber. An inclined plate is installed at the lower end of the gas-liquid separation chamber, and a gas pipe is installed at the upper end of the inclined plate. A gas chamber is provided at the upper end of the gas pipe, and air outlets are provided on both sides at the lower end of the gas chamber. A wavy condensation plate is installed inside the gas-liquid separation chamber, and a condensation pipe is provided inside the wavy condensation plate. Leakage grooves are formed at the low-lying parts of the wavy condensation plate;

[0009] The recovery component includes a pipeline. A check valve is installed on one side of the pipeline, and a storage box is provided on one side of the check valve. A discharge pipe is installed on one side of the storage box, and a recovery air pump is installed on one side of the storage box. A return air pipe is provided on one side of the recovery air pump.

[0010] Preferably, a feed pipe is provided on one side of the evaporator body. A distributor is provided on one side of the feed pipe. A motor is installed at the top of the evaporator body. A rotating rod is installed at the output end of the motor. A scraper is installed on one side of the rotating rod. A heating jacket is sleeved outside the evaporator body.

[0011] Preferably, the inclined plate is inclined at a certain angle and is detachably arranged inside the evaporator body. The gas pipe is communicated with the evaporator body.

[0012] Preferably, the gas pipe is communicated with the gas chamber. The air outlet is of an inverted cone-shaped structure and is communicated with the gas-liquid separation chamber.

[0013] Preferably, there are multiple groups of the wavy condensation plates. The multiple groups of wavy condensation plates are distributed at intervals in the gas-liquid separation chamber. There are multiple groups of the condensation pipes. The multiple groups of condensation pipes are interconnected and are equidistantly distributed inside the wavy condensation plates.

[0014] Preferably, the pipeline is fixedly arranged on one side of the inclined plate. There are multiple groups of the pipelines. The storage box is communicated with the check valve through the pipeline.

[0015] Preferably, the recovery air pump is communicated with the storage box through the pipeline. The return air pipe is communicated with the gas-liquid separation chamber.

[0016] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0017] First, through the provided gas-liquid separation component, the evaporated gas is fully separated into gas and liquid, improving the separation efficiency and enhancing the condensation effect, and improving the practicability to a certain extent. The gas evaporated inside the evaporator body enters the gas chamber through the gas pipe and finally enters the gas-liquid separation chamber through the air outlet, preventing the condensed liquid from flowing back into the evaporator body and ensuring the condensation efficiency. The wavy condensation plate in a wavy shape increases the contact area between the gas and the wavy condensation plate, improving the gas-liquid separation efficiency. The inclined inclined plate increases the liquid flow rate.

[0018] Second, the utility model reduces the steam content in the gas-liquid mixture by setting a recovery component to recover part of the steam, making the gas-liquid separation process clearer and more definite, completely separating the gas and the liquid, improving the separation efficiency. The condensed liquid enters the pipeline, and the liquid in the pipeline enters the storage tank through the check valve. By starting the recovery air pump, the excess steam in the storage tank is pumped to the gas-liquid separation chamber through the return pipe for condensation to improve the separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a cross-sectional view of the utility model;

[0021] Figure 3 is the utility model Figure 2 a enlarged structural view of part A in;

[0022] Figure 4 is a schematic structural diagram of the gas pipe and the gas chamber of the utility model.

[0023] In the figure: 1, evaporator body; 2, feed pipe; 3, distributor; 4, motor; 5, rotating rod; 6, scraper; 7, heating jacket; 8, gas-liquid separation component; 801, gas-liquid separation chamber; 802, inclined plate; 803, gas pipe; 804, gas chamber; 805, air outlet; 806, wavy condensation plate; 807, condensation pipe; 808, leakage trough; 9, recovery component; 901, pipeline; 902, check valve; 903, storage tank; 904, discharge pipe; 905, recovery air pump; 906, return pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, A thin-film evaporator, comprising an evaporator body 1, an upper end of the evaporator body 1 is provided with a gas-liquid separation assembly 8, and a recovery assembly 9 is arranged on one side of the gas-liquid separation assembly 8; the gas-liquid separation assembly 8 includes a gas-liquid separation chamber 801, a sloping plate 802 is installed at a lower end of the gas-liquid separation chamber 801, and a gas pipe 803 is installed at an upper end of the sloping plate 802, an upper end of the gas pipe 803 is provided with a gas chamber 804, and air outlets 805 are arranged on both sides of a lower end of the gas chamber 804, a wavy condensation plate 806 is installed inside the gas-liquid separation chamber 801, and a condensation pipe 807 is arranged inside the wavy condensation plate 806, and a leakage groove 808 is formed at a low-lying place of the wavy condensation plate 806; the recovery assembly 9 includes a pipe 901, a check valve 902 is installed on one side of the pipe 901, and a storage tank 903 is arranged on one side of the check valve 902, a discharge pipe 904 is installed on one side of the storage tank 903, a recovery air pump 905 is installed on one side of the storage tank 903, and a return air pipe 906 is arranged on one side of the recovery air pump 905.

[0026] Through the above technical solution, by arranging the gas-liquid separation assembly 8, the evaporated gas is fully separated into gas and liquid, improving the separation efficiency and increasing the condensation effect, and improving the practicability to a certain extent. The gas evaporated in the evaporator body 1 enters the gas chamber 804 through the gas pipe 803, and finally enters the gas-liquid separation chamber 801 through the air outlet 805, preventing the condensed liquid from flowing back into the evaporator body 1 and ensuring the condensation efficiency. The wavy condensation plate 806 with a wavy shape increases the contact area between the gas and the wavy condensation plate 806, improving the gas-liquid separation efficiency. The inclined sloping plate 802 increases the liquid flow rate. By arranging the recovery assembly 9, part of the steam is recovered, reducing the steam content in the gas-liquid mixture, making the gas-liquid separation process clearer and more definite, and completely separating the gas and the liquid, improving the separation efficiency. The condensed liquid enters the pipe 901, and the liquid in the pipe 901 enters the storage tank 903 through the check valve 902. By starting the recovery air pump 905, the excess steam in the storage tank 903 is pumped into the gas-liquid separation chamber 801 through the return air pipe 906 for condensation to improve the separation efficiency.

[0027] Specifically, a feed pipe 2 is arranged on one side of the evaporator body 1, a distributor 3 is arranged on one side of the feed pipe 2, a motor 4 is installed at a top end of the evaporator body 1, a rotating rod 5 is installed at an output end of the motor 4, a scraping plate 6 is installed on one side of the rotating rod 5, and a heating jacket 7 is sleeved outside the evaporator body 1.

[0028] Through the above technical solution, the raw material enters the distributor 3 from the feed pipe 2 for uniform distribution operation, and then enters the evaporator body 1. The motor 4 drives the rotating rod 5 to rotate, and the rotating rod 5 drives the scraping plate 6 to rotate, making the raw material liquid flow in a film shape along the inner wall of the evaporator body 1 to increase the evaporation efficiency. The heating jacket 7 increases the temperature inside the evaporator body 1 to facilitate heating of the raw material.

[0029] Specifically, the inclined plate 802 is inclined at a certain angle, and the inclined plate 802 is detachably arranged inside the evaporator body 1, and the gas pipe 803 is communicated with the evaporator body 1.

[0030] Through the above technical solution, the inclined plate 802 facilitates the liquid to enter the pipe 901, and enters the storage tank 903 through the pipe 901 for storage, improving the liquid flow rate, and the steam enters the gas chamber 804 through the gas pipe 803.

[0031] Specifically, the gas pipe 803 is communicated with the gas chamber 804, the air outlet 805 is of an inverted cone-shaped structure, and the air outlet 805 is communicated with the gas-liquid separation chamber 801.

[0032] Through the above technical solution, the inverted cone-shaped structure of the air outlet 805 is used to prevent the condensed liquid from flowing back, ensuring the gas-liquid separation effect. The steam in the gas chamber 804 enters the gas-liquid separation chamber 801 through the air outlet 805 for condensation operation.

[0033] Specifically, there are multiple groups of wavy condensation plates 806, and the multiple groups of wavy condensation plates 806 are spaced apart in the gas-liquid separation chamber 801. There are multiple groups of condensation pipes 807, and the multiple groups of condensation pipes 807 are interconnected and evenly distributed in the wavy condensation plates 806.

[0034] Through the above technical solution, the multiple groups of wavy condensation plates 806 are in full contact with the steam, improving the condensation efficiency. The wavy shape of the wavy condensation plates 806 increases the contact area between the gas and the wavy condensation plates 806. Condensate is filled into the condensation pipes 807 to reduce the temperature of the wavy condensation plates 806 for gas-liquid separation operation.

[0035] Specifically, the pipe 901 is fixedly arranged on one side of the inclined plate 802. There are multiple groups of pipes 901, and the storage tank 903 is communicated with the check valve 902 through the pipes 901.

[0036] Through the above technical solution, the condensed liquid enters the check valve 902 through the pipe 901. The check valve 902 prevents the liquid from flowing back, and the liquid is stored in the storage tank 903.

[0037] Specifically, the recovery air pump 905 is communicated with the storage tank 903 through the pipe 901, and the return air pipe 906 is communicated with the gas-liquid separation chamber 801.

[0038] Through the above technical solution, the excess steam overflowing from the storage tank 903 is pumped to the gas-liquid separation chamber 801 through the return air pipe 906 by the recovery air pump 905 for re-condensation to improve the separation efficiency.

[0039] In use, first, the raw materials enter the distributor 3 through the feed pipe 2 for uniform distribution operation. The motor 4 is started, and the motor 4 drives the rotating rod 5 to rotate. The rotating rod 5 drives the scraper 6 to rotate, so that the raw material liquid flows in a film shape along the inner wall of the evaporator body 1. The evaporator body 1 is heated through the heating jacket 7. The raw material liquid evaporates into gas. The gas evaporated in the evaporator body 1 enters the gas chamber 804 through the gas pipe 803. The steam in the gas chamber 804 enters the gas-liquid separation chamber 801 through the air outlet 805. The condensate is filled into the condenser pipe 807. The wavy condenser plate 806 contacts the steam, and the steam condenses into liquid. The inclined inclined plate 802 causes the liquid to flow into the pipe 901. When it is necessary to recover and fully separate some steam, the condensed liquid enters the pipe 901. The liquid in the pipe 901 enters the storage tank 903 through the check valve 902. The recovery air pump 905 is started, and the recovery air pump 905 pumps the excess steam overflowing from the storage tank 903 to the gas-liquid separation chamber 801 through the return air pipe 906 for re-condensation to improve the separation efficiency.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit. The scope is defined by the appended claims and their equivalents.

Claims

1. A thin film evaporator, comprising an evaporator body (1), characterized in that: A gas-liquid separation component (8) is provided at the upper end of the evaporator body (1), and a recovery component (9) is provided on one side of the gas-liquid separation component (8); The gas-liquid separation component (8) comprises a gas-liquid separation chamber (801), a sloping plate (802) is installed at the lower end of the gas-liquid separation chamber (801), and a gas pipe (803) is installed at the upper end of the sloping plate (802), a gas chamber (804) is provided at the upper end of the gas pipe (803), and gas outlets (805) are provided on both sides of the lower end of the gas chamber (804), a wave condensation plate (806) is installed inside the gas-liquid separation chamber (801), and a condensation pipe (807) is provided inside the wave condensation plate (806), and a leakage groove (808) is opened at a low-lying position of the wave condensation plate (806); The recovery component (9) comprises a pipeline (901), a check valve (902) is installed on one side of the pipeline (901), a storage box (903) is provided on one side of the check valve (902), a discharge pipe (904) is installed on one side of the storage box (903), a recovery air pump (905) is installed on one side of the storage box (903), and a return air pipe (906) is provided on one side of the recovery air pump (905).

2. A thin film evaporator according to claim 1, characterized in that: A feed pipe (2) is provided on one side of the evaporator body (1), a distributor (3) is provided on one side of the feed pipe (2), a motor (4) is installed at the top of the evaporator body (1), a rotating rod (5) is installed at the output end of the motor (4), a scraper (6) is installed on one side of the rotating rod (5), and a heating jacket (7) is provided on the outer side of the evaporator body (1).

3. A thin film evaporator according to claim 1, characterized in that: The inclined plate (802) is inclined at a certain angle, and the inclined plate (802) is detachably arranged inside the evaporator body (1), and the gas pipe (803) is connected to the evaporator body (1).

4. A thin film evaporator according to claim 1, characterized in that: The gas pipe (803) is connected to the gas chamber (804), the gas outlet (805) is an inverted cone-shaped structure, and the gas outlet (805) is connected to the gas-liquid separation chamber (801).

5. The thin film evaporator according to claim 1, characterized in that: The wave condensation plates (806) are multiple groups, and the multiple groups of wave condensation plates (806) are distributed at intervals in the gas-liquid separation chamber (801); the condensation tubes (807) are multiple groups, and the multiple groups of condensation tubes (807) are interconnected and evenly distributed in the wave condensation plates (806).

6. A thin film evaporator according to claim 1, characterized in that: The pipeline (901) is fixedly arranged on one side of the inclined plate (802), and the pipeline (901) is composed of multiple groups. The storage box (903) is connected to the check valve (902) through the pipeline (901).

7. A thin film evaporator according to claim 1, characterized in that: The recovery air pump (905) is connected to the storage box (903) via a pipeline (901), and the return air pipe (906) is connected to the gas-liquid separation chamber (801).

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